JP2010045686A - Communication system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a communication system simply and suitably transmitting content data to another apparatus without requiring an operation such as cable connection. <P>SOLUTION: In a digital camera 1, a proximity communication part 19 is equipped with a starting part 20 for starting a control part 21 by electromagnetic induction generated by an antenna when receiving a communication signal periodically sent from an external apparatus 9. When communication with the external apparatus 9 is established, an image display control part 211 selects a photographed image to be a transmitting object from photographed images recorded in a recording part 17 and displays the selected image on a display part 15. A transmission control part 213 transmits the photographed image to be the transmitting object to the external apparatus 9. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a communication system that transmits and receives content data.

  In recent years, with the spread of personal computers and the increase in the screen size of televisions, an increasing number of users enjoy displaying images taken with digital cameras on personal computers and televisions. In addition, a digital photo frame that reads an image from a recording medium such as a memory card in which images taken by a digital camera are stored and displays the image on a dedicated display device has been put into practical use.

  In addition, an imaging apparatus is disclosed that transmits image data to an external device via a network (see Patent Document 1).

JP 2001-238114 A

  However, when a photographed image taken with a digital camera is transmitted and displayed on a display device such as a television as described above, work such as connecting the digital camera to the display device with a cable is necessary each time. there were. Further, even when image data is transmitted via a network as in the technique of Patent Document 1, when the power of the digital camera is OFF, a power-on operation is first performed, and then a captured image to be transmitted is displayed. It was necessary to perform an operation of making a selection while confirming the display on the display unit.

  The present invention has been made in view of the above, and an object of the present invention is to provide a communication system that can easily and appropriately transmit content data to another device without requiring work such as cable connection. To do.

  In order to solve the above-described problems and achieve the object, a communication system according to the present invention is a communication system in which a first device and a second device perform short-range wireless communication to transmit and receive content data. The first device includes a recording unit that records content data, a proximity communication unit that performs proximity wireless communication with the second device, and reception of a communication signal transmitted from the second device. When communication is established between the activation unit that activates the first device and the second device, a display control unit that performs display processing of predetermined content data on the display unit, and the predetermined display processed A transmission control unit that transmits content data to the second device via the proximity communication unit, and the second device performs proximity wireless communication with the first device. A communication unit and the proximity communication unit. And a transmission processing unit for transmitting a periodic communication signals, the content data transmitted from said first device, characterized in that it received through the proximity communication unit.

  Further, in the communication system according to the present invention as set forth in the invention described above, the first device includes a transmission instruction unit that instructs transmission start of the predetermined content data, and the transmission control unit is operated by the transmission instruction unit. When the start of transmission is instructed, the predetermined content data subjected to the display process is transmitted to the second device.

  According to the present invention, the first device is activated by receiving the communication signal transmitted from the second device, the predetermined content data is displayed on the display unit, and the predetermined content data subjected to the display processing is displayed on the first device. It is possible to perform transmission processing to two devices. Therefore, work such as cable connection is not required, and content data can be transmitted to other devices easily and appropriately.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a communication system to which the present invention is applied will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments. Moreover, in description of each drawing, the same code | symbol is attached | subjected and shown to the same part. The communication system according to the present embodiment includes a digital camera that is a first device and an external device that is a second device, and performs short-range wireless communication to transmit and receive content data. Specifically, this communication system is powered on when the external device that periodically sends out communication signals and the digital camera that is powered off are brought close to each other. Is activated to transmit the captured image recorded in the digital camera to an external device.

(Embodiment)
FIG. 1 is a schematic perspective view showing the front side of the digital camera 1 of the present embodiment, and FIG. 2 is a schematic perspective view showing the back side of the digital camera 1. As shown in FIG. 1, the digital camera 1 has an imaging lens 4 disposed on the front surface of the camera body 3, and an imaging unit 11 (see FIG. 7) that captures a subject image incident through the imaging lens 4. 3 is provided. On the other hand, a release switch 5 is provided on the upper surface of the camera body 3 for instructing photographing timing. On the back of the camera body 3, a display unit 15 for displaying various screens, a plurality of button switches 7 to which unique functions for inputting various operations such as power-on and mode selection are assigned. ing. Further, the left end portion of the camera body 3 as viewed from the front side forms a grip portion 8 that is held by the user's right hand, and the release switch 5 on the top surface and the button switch 7 on the back surface hold the grip portion 8. It is arranged at the position where it can be operated in the state.

  In addition, a touch panel 16 is integrally formed on the display unit 15 over the entire screen (display area), and the position on the screen can be directly designated by the touch panel 16. ing.

  When the digital camera 1 is turned on (ON) and the shooting mode is selected, the digital camera 1 is ready for shooting, and the subject image incident through the imaging lens 4 is displayed on the display unit 15 in real time as a live view image. It has come to be. The user holds the grip unit 8 and holds the camera body 3 and shoots while pressing the release switch 5 while viewing the live view image on the display unit 15, or displays (reproduces) the captured image on the display unit 15. And enjoy.

  As shown in FIG. 1, the digital camera 1 performs proximity wireless communication with a proximity communication unit included in an external device on the end side opposite to the end where the grip portion 8 of the camera body 3 is formed. The proximity communication unit 19 is incorporated.

  FIG. 3 is an explanatory view showing a state in which the digital camera 1 and the external device 9 communicate with each other from the side, and FIG. 3 illustrates the external device 9 as a notebook personal computer. The proximity communication unit 19 of the digital camera 1 is provided such that its antenna is disposed on the front side of the camera body 3. On the other hand, the proximity communication unit 96 of the notebook personal computer which is the external device 9 is provided so that its antenna is arranged on the keyboard surface side. Communication is established with the. Thus, in the present embodiment, the posture of the camera body 3 in the front-rear direction during communication is defined by the arrangement of the proximity communication unit 19. That is, when the digital camera 1 is brought close to the external device 9 with the front side of the camera body 3 facing the keyboard surface of the external device 9, communication is established, while the camera is connected to the keyboard surface of the external device 9. Communication is not established even when the back side of the main body 3 is brought closer. For the user, the grip unit 8 of the camera body 3 may be held close to the external device 9 in the same manner as during shooting and playback, and the display unit 15 of the digital camera 1 can be seen and externally displayed. Communication can be performed while the display unit 92 of the device 9 is also visible. Thereby, at the time of communication, the success / failure of transmission / reception, the contents of transmitted / received data, etc. can be easily visually confirmed by displaying on the display units 15 and 92.

  The external device 9 is assumed to be a notebook computer (personal computer), a television, a mobile phone, a digital photo frame, a printer, or the like. FIG. 4 is an explanatory diagram showing the state in which the digital camera 1 and the television 9a communicate with each other from the side. As shown in FIG. 4, the near field communication unit 96a of the television 9a is provided such that an antenna is disposed on the front surface where the display unit 92a is disposed. When the proximity communication unit 96a and the proximity communication unit 19 of the digital camera 1 come close to each other within a communicable range, communication is established between the digital camera 1 and the television 9a. Therefore, communication can be performed while the display unit 15 of the digital camera 1 is visible and the display unit 92a of the television 9a is also visible.

  5 and 6 are diagrams for explaining the outline of communication performed between the digital camera 1 and the external device 9. In the present embodiment, the digital camera 1 receives a communication signal transmitted from the external device 9 and activates itself, and displays a predetermined captured image that is an example of content data recorded in the own device. 15, and processing for transmitting the displayed captured image data to the external device 9.

  As shown in FIG. 5, the digital camera 1 receives a communication signal transmitted from the external device 9, turns on its own power (a 11), and notifies the external device 9 of reception (a 13). Thereby, communication is established between the digital camera 1 and the external device 9. The external device 9 that has established communication notifies the digital camera 1 of communication establishment (a15), and in response to this, the digital camera 1 selects a predetermined photographed image recorded in its own device as a transmission target, It is displayed on the display unit 15. For example, a photographed image with the latest photographing date is selected and displayed. Alternatively, the photographed image reproduced first in the reproduction mode may be selected and displayed. Further, a captured image may be selected and displayed according to a user operation.

  Then, when communication is established with the external device 9 in the state in which the captured image is displayed on the display unit 15 in this way, the digital camera 1 sends a reception request to the external device 9 as shown in FIG. Transmit (a21). Then, the external device 9 that has received the reception request notifies the digital camera 1 of the standby state (a23). In response to this, the digital camera 1 transmits the captured image data being displayed to the external device 9 (a25), and the external device 9 receives the captured image data.

  FIG. 7 is a block diagram illustrating an example of main internal configurations of the digital camera 1 and the external device 9 that constitute the communication system 100. As shown in FIG. 7, the digital camera 1 includes an imaging unit 11, an image processing unit 12, a displacement detection unit 13, an operation unit 14, a display unit 15, a touch panel 16, a recording unit 17, a clock unit 18, a proximity communication unit 19, A control unit 21 and the like are provided.

  The imaging unit 11 includes an imaging device such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor) that photoelectrically converts an object image incident through the imaging lens 4 and outputs an analog electric signal. The electrical signal is converted into a digital electrical signal and image data is output.

  The image processing unit 12 performs various types of image processing on the image data output from the imaging unit 11 and performs processing for converting into image data suitable for recording and display. For example, when recording image data of a photographed image or displaying recorded image data, image data compression processing or decompression processing based on a JPEG (Joint Photographic Experts Group) method or the like is performed.

  The displacement detector 13 is for detecting the displacement of the camera body 3, and is a known acceleration sensor for detecting acceleration generated in the camera body 3, and a known angular velocity for detecting the angular velocity when the camera body 3 is rotated. This is realized by a sensor or the like. Conventionally, a digital camera equipped with an angular velocity sensor or an acceleration sensor for correcting image blur due to camera shake is known, and when applied to such a digital camera, a new configuration is not added. The displacement of the camera body 3 can be detected.

  FIG. 8 is a diagram for explaining the detection of the displacement of the camera body 3 by the displacement detector 13. As shown in FIG. 8, for example, the optical axis direction of the optical system (imaging lens 4) of the digital camera 1 is the Z-axis direction, and a plane perpendicular to the Z-axis direction (imaging surface of the imaging device) is an XY plane. Define the direction. Here, the X, Y, and Z axes are local coordinate axes fixed to the digital camera 1, and are irrelevant to the posture of the camera body 3. The displacement detection unit 13 detects the acceleration in the X, Y, and Z axis directions by using an individual acceleration sensor or a triaxial acceleration sensor, and detects the angular velocity around each of the X, Y, and Z axes. Detect by. The displacement detection unit 13 detects the amount of movement of the camera body 3 based on the detection result of the acceleration sensor, and detects the amount of rotation of the camera body 3 based on the detection result of the angular velocity sensor. It is detected as a displacement.

  9 and 10-1 to 10-1 are diagrams for explaining an example of the detection principle of the movement amount of the camera body 3 using the acceleration sensor. As shown in FIG. 9, the acceleration sensor has fixed electrodes 221 and 223 fixed to the chip surface and a movable electrode 225 that is bridged on the fixed electrodes 221 and 223 and moves in the direction of arrow A4 due to the acceleration. And have. Then, the acceleration is detected by detecting the change in capacitance between the fixed electrode 221 and the movable electrode 225 and the change in capacitance between the fixed electrode 223 and the movable electrode 225. A speed is obtained by integrating the output of the acceleration sensor (FIG. 10-1) (FIG. 10-2), and a moving amount is obtained by further integrating (FIG. 10-3). 11 and 12 are diagrams for explaining an example of the detection principle of the rotation amount of the camera body 3 using the angular velocity sensor. As shown in FIG. 11, the angular velocity sensor has a pair of vibrating bodies 231 and 233 on which piezoelectric ceramic elements are formed. In a state where the vibrating bodies 231 and 233 are vibrated in the vibration direction shown in FIG. 11, The angular velocity is detected using the Coriolis force. Then, the amount of rotation is obtained by integrating the output of the angular velocity sensor (FIG. 12).

  The operation unit 14 shown in FIG. 7 is for accepting various operations by the user, such as a shooting start instruction, a mode selection operation such as a shooting mode and a playback mode, and a shooting condition setting operation, and notifies the control unit 21 of an operation signal. Is. The operation unit 14 includes the release switch 5 and the button switch 7 of FIG.

  The display unit 15 displays various setting information of the digital camera 1 in addition to the captured image and the live view image, and is realized by a display device such as an LCD (Liquid Crystal Display) or an EL display (Electroluminescence Display). Is done. On the display unit 15, for example, a live view image is redrawn every frame during the shooting mode and continuously displayed as a moving image, and a shot image is displayed during the playback mode.

  Further, the digital camera 1 includes a touch panel 16 that is formed on the screen of the display unit 15 separately from the operation unit 14 and performs various operation inputs by touch operations with fingers or a dedicated stylus pen. The touch panel 16 detects a touch operation position by, for example, a dot unit constituting a screen based on a detection principle such as a pressure-sensitive type, an optical type, a capacitance type, and an electromagnetic induction type. Is detected, and the position coordinates of the touch operation position are detected and output to the control unit 21.

  13 and 14 are diagrams for explaining an example of the detection principle of the touch panel 16. As shown in FIG. 13, the touch panel 16 has two transparent films 161 and 163 on which strip-shaped transparent resistance films 162 and 164 are formed, respectively, so that the transparent resistance films 162 and 164 are orthogonal to each other. The transparent films 161 and 163 are arranged to face each other. Then, as shown in FIG. 14, when the touch panel 16 is pressed (touched) and the transparent resistance films 162 and 164 come into contact with each other, they are brought into conduction, and this conduction position is detected as a touch operation position.

  The recording unit 17 operates the digital camera 1 and records various camera programs for realizing various functions of the digital camera 1, data used during the execution of the camera program, and the like. This is for storing image data of a photographed image. For example, it is realized by various IC memories such as ROM and RAM such as flash memory that can be updated and recorded, information recording media such as a built-in or connected data communication terminal, a memory card, and its read / write device, etc. The recording apparatus according to the above can be appropriately employed and used.

  In the recording unit 17, external device data 171 is recorded. The external device data 171 is used to identify an external device that is designated in advance as a communication partner by the user. For example, an external device ID such as a manufacturing number assigned to the external device at the time of manufacturing, and its transmission type Is set. The transmission type is information for identifying whether one captured image or a plurality of captured images are transmitted to the external device. For example, a transmission type for transmitting a plurality of photographed images is set in association with an external device ID of an external device to be transmitted and recorded (backup) such as a personal computer. In addition, for external devices such as a television and a printer, a transmission type for transmitting captured images one by one is set. Accordingly, it is possible to display a desired photographed image one by one on the television or to print a desired photographed image one by one from the printer.

  The clock unit 18 is for measuring the date and time. The photographing date and photographing time of the photographed image are specified by the current time measured by the clock unit 18, and the photographed image is recorded in the recording unit 17 together with the photographing date and the photographing time.

  The near field communication unit 19 is for performing near field wireless communication with the external device 9, and transmits and receives radio signals to and from the near field communication unit 96 of the external device 9 by an antenna, and demodulates the received signal. A transmission / reception circuit for modulating the transmission signal is also included. The proximity communication unit 19 includes an activation unit 20 that activates the control unit 21 in a stopped state or a standby state by electromagnetic induction generated in the antenna.

  The control unit 21 is realized by a CPU or the like, reads out and executes a camera program from the recording unit 17 in response to an operation signal from the operation unit 14, and performs instructions and data transfer to each unit constituting the digital camera 1. Thus, the operation of the digital camera 1 is comprehensively controlled. The control unit 21 includes an image display control unit 211 as a display control unit and a transmission control unit 213. The above-described camera program causes the control unit 21 to function as the image display control unit 211 and the transmission control unit 213. Including programs. The image display control unit 211 selects a photographic image to be transmitted from the photographic images recorded in the recording unit 17 and displays the photographic image on the display unit 15 when communication is established with the external device 9. I do. The transmission control unit 213 performs processing for transmitting a captured image to be transmitted to the external device 9.

  On the other hand, as shown in FIG. 7, the external device 9 includes an operation unit 91, a display unit 92, a communication unit 93, a broadcast receiving unit 94, a recording unit 95, a proximity communication unit 96, a control unit 97, and the like.

  The operation unit 91 is realized by various input devices such as a keyboard, a mouse, a remote controller, a touch panel, and various switches, and outputs an operation signal corresponding to the operation input to the control unit 97. When watching TV, the operation unit 91 inputs various operations such as channel selection and volume increase / decrease. The display unit 92 is realized by a display device such as an LCD or an EL display, and displays various screens based on a display signal input from the control unit 97.

  The communication unit 93 is for performing processing such as connection to the Internet, and performs data communication with other devices connected via the network N. Here, the network N is, for example, the Internet, a line for connecting to the Internet, an ISP server, or the like, and includes various communication lines and an Internet provider for connecting them.

  The broadcast receiving unit 94 is for receiving a broadcast wave of a broadcast program transmitted from a broadcast station. The broadcast receiving unit 94 includes an antenna, a tuner, and the like, selects a channel signal selected from broadcast signals received by the antenna, performs signal processing such as demodulation processing, and performs video data of the broadcast program. And the sound data are output to the control unit 97.

  The recording unit 95 operates the external device 9 and records programs for realizing various functions provided in the external device 9, data used during the execution of the program, and the like. This is for recording content data obtained by connecting to the Internet, image data of a captured image received from the digital camera 1, and the like. The recording unit 95 is realized by various IC memories such as ROM and RAM such as flash memory that can be updated and recorded, an information recording medium such as a built-in hard disk or a memory card connected by a data communication terminal, and a read / write device thereof. Therefore, a recording apparatus corresponding to the application can be appropriately selected and used.

  The near field communication unit 96 is for performing near field wireless communication with the digital camera 1, and transmits and receives radio signals to and from the near field communication unit 19 of the digital camera 1 through an antenna, and demodulates the received signal. In addition, a transmission / reception circuit for modulating the transmission signal is provided. From the proximity communication unit 96, a communication signal for notifying the presence is periodically transmitted. The communication signal is for turning on the power of the digital camera 1. In the external device 9 assuming a notebook personal computer or the like, an AC power adapter can be used, and the charging capacity of the rechargeable battery is large, which is advantageous in terms of power compared to the digital camera 1. For this reason, in the present embodiment, the digital camera 1 can be automatically turned on by periodically transmitting a communication signal from the external device 9.

  The control unit 97 is realized by a CPU or the like, and is directed to each unit constituting the external device 9 based on an operation signal input from the operation unit 91, a program or data recorded in the recording unit 95, data transfer, or the like. To control the operation of the external device 9 in an integrated manner. For example, after establishing communication with the digital camera 1, the control unit 97 performs processing for receiving image data of a captured image transmitted from the digital camera 1, or stores the image data in the recording unit 95 with respect to the digital camera 1. A process of transmitting the recorded content data is performed. In addition, the control unit 97 displays video data input from the broadcast receiving unit 94, playback / display processing based on content data acquired by connecting to the Internet, and playback / display processing of a captured image transmitted from the digital camera 1. I do. The control unit 97 also outputs sound data input from the broadcast receiving unit 94, reproduces sound based on content data acquired by connecting to the Internet, and reproduces sound data transmitted from the digital camera 1. And output from a speaker (not shown). The control unit 97 includes a communication signal transmission control unit 971 as a transmission control unit that periodically transmits a communication signal via the proximity communication unit 96.

  Next, a specific processing procedure performed by the digital camera 1 and the external device 9 will be described. First, the processing procedure of the digital camera 1 will be described. The digital camera 1 according to the present embodiment is automatically turned on by a communication signal transmitted from the external device 9 and starts data transmission processing even when the power is turned off. ing. FIG. 15 is a flowchart showing the procedure of the transmission process.

  As shown in FIG. 15, when the near field communication unit 19 of the digital camera 1 comes close to the communicable area of the near field communication unit 96 of the external device 9, reception of the communication signal periodically transmitted by the near field communication unit 96. As a result, electromagnetic induction occurs in the antenna of the near field communication unit 19, and communication with the external device 9 is established (step b1). Specifically, at this time, the activation unit 20 of the proximity communication unit 19 activates the control unit 21 by electromagnetic induction generated in the antenna, and the power source of the digital camera 1 is turned on (step b3).

  When the power of the digital camera 1 is turned on in this way, the control unit 21 subsequently determines the type of the external device 9 with which communication has been established (step b5). In the present embodiment, the near field communication unit 96 periodically transmits a communication signal in the external device 9 and transmits the communication signal including its own external device ID. Based on the external device ID acquired by this communication signal, the control unit 21 refers to the external device data 171 to identify the transmission type of the external device 9 with which communication has been established.

  Then, when the captured images are transmitted one by one to the external device 9 according to the identified transmission type (step b7: Yes), the image display control unit 211 selects one captured image as a transmission target. Then, the reproduction process is performed and displayed on the display unit 15 (step b8). Then, the process proceeds to a display image transmission process (step b9), and then the process proceeds to step b13, where the control unit 21 turns off the proximity communication unit 19. On the other hand, when a plurality of photographed images are transmitted to the external device 9 according to the transmission type (step b7: No), the process proceeds to the recording image transmission process (step b11), and then the process proceeds to step b13 to perform control. The unit 21 turns off the proximity communication unit 19.

  Here, the display image transmission process and the recorded image transmission process will be described. FIG. 16 is a flowchart showing a procedure of display image transmission processing, and FIG. 17 is a flowchart showing a procedure of recording image transmission processing.

  In the display image transmission process, after transmitting the number of transmission images to “1” to the external device 9 with which communication has been established, first, as shown in FIG. 16, a transmission permission / inhibition determination process is performed (step d3). FIG. 18 is a flowchart illustrating the procedure of the transmission permission / inhibition determination process.

  In the transmission permission / inhibition determination process, first, the displacement detector 13 detects the displacement of the camera body 3 (step e1). And the control part 21 determines whether the camera main body 3 was moved according to the transmission confirmation instruction | indication pattern set beforehand as a transmission instruction | indication part based on the result of the displacement detection by the displacement detection part 13. FIG. When the camera body 3 is moved in accordance with the transmission confirmation instruction pattern and a transmission confirmation instruction is given (step e3: Yes), the control unit 21 determines that transmission is possible (step e5). And it returns to step d3 of FIG. 16, and moves to step d5 after that. On the other hand, if the camera body 3 is not moved according to the transmission confirmation instruction pattern (step e3: No), it is determined that transmission is not possible (step e7), the process returns to step d3 in FIG. 16, and then the process proceeds to step d5.

  Here, the transmission confirmation instruction pattern includes a displacement of the camera body 3 that rotates in the forward direction with respect to the X, Y, and Z axes in FIG. 8, a displacement that rotates in the opposite direction, and a predetermined direction in the XY plane. Displacement that slides in a predetermined direction in the XZ plane, displacement that slides in a predetermined direction in the YZ plane, or a combination thereof. Note that the transmission confirmation instruction is not limited to detecting the movement of the camera body 3 according to the transmission confirmation instruction pattern. For example, an appropriate operation such as pressing the button switch 7 or touching the touch panel 16 shown in FIG. It can be realized by the method. Further, it may be determined that there is a transmission confirmation instruction when a predetermined time has elapsed.

  In step d5 of FIG. 16, the control unit 21 determines the result of the transmission permission / inhibition determination process. When the transmission control unit 213 determines that transmission is possible (step d5: Yes) and communication is established (step d7: Yes), the transmission control unit 213 performs transmission during reproduction. Processing for transmitting the target captured image to the external device 9 together with the display request is performed (step d9). Then, the process returns to step b9 in FIG.

  FIG. 19 is a diagram illustrating a transition example of a transmission screen displayed on the display unit 15 when the transmission type of the external device 9 is a transmission type in which captured images are transmitted one by one. As shown in FIG. 19, when the digital camera 1 is turned off (a) and the digital camera 1 is brought close to the external device 9, the transmission type of the external device 9 is a captured image one by one. In the case of the transmission type to be transmitted, the transmission screen on which the captured image I11 selected as the transmission target is reproduced and displayed is displayed on the display unit 15 (b). A transmission confirmation message M11 is displayed on the transmission screen. When the user moves the camera body 3 in accordance with the transmission confirmation instruction pattern while the digital camera 1 is close to the external device 9, the transmission screen displays data A transmission mark MK11 or the like indicating the transmission state is displayed (c), and transmission processing of the captured image being reproduced is performed as internal processing. Therefore, the user can transmit the captured image data to the external device 9 after confirming the transmission by visually confirming the display content on the transmission screen. According to this, it is only necessary to reproduce the photographed image, and the photographed image data can be easily and definitely transmitted from the digital camera 1 to the external device 9.

  On the other hand, as shown in FIG. 16, when it is determined that transmission is not possible (step d5: No), or when communication is interrupted (step d7: No), the process proceeds to step d11. Note that a message for prompting the digital camera 1 to approach the external device 9 may be displayed on the display unit 15 to wait for a predetermined time (for example, 2 minutes). Then, when the digital camera 1 is brought close to the external device 9 and communication is established within the predetermined time, the captured image to be transmitted being reproduced may be transmitted to the external device 9.

  In step d11, an operation for selecting a captured image to be reproduced is accepted. If there is a selection operation (step d11: Yes), the image display control unit 211 performs a reproduction process of switching the reproduction image to the selected captured image and displaying it on the display unit 15 (step d13), and then to step d3. Return. If there is no reproduction image selection operation (step d11: No), the end operation is determined. If there is no end operation (step d15: No), the process returns to step d3. If there is an end operation (step d15: Yes), the process returns to step b9 in FIG.

  On the other hand, in the recorded image transmission process, the number of transmission images is counted and transmitted to the external device 9 with which communication has been established. For example, photographic images that have already been transmitted to the external device 9 are recorded, and the number of photographic images that have not been transmitted is counted as a transmission target. Thereafter, as shown in FIG. 17, the transmission control unit 213 first determines the presence or absence of a captured image to be transmitted. When there is no captured image to be transmitted (step c1: No), the transmission control unit 213 returns to step b11 in FIG.

  When there is a captured image to be transmitted (step c1: Yes), the image display control unit 211 arranges thumbnails of the captured images to be transmitted starting from a predetermined movement start position (see FIG. 20). (See c) is displayed (step c3). At this time, the control unit 21 starts a timer and starts a time measurement process (step c5).

  Subsequently, the image display control unit 211 determines the display update timing, and if it is the display update timing (step c7: Yes), moves the thumbnails arranged on the transmission screen by a predetermined amount toward a predetermined transmission start position. Processing to update the display is performed (step c9).

  If there is no thumbnail at the transmission start position (step c11: No), the process proceeds to step c25. If there is a thumbnail at the transmission start position (step c11: Yes), the transmission control unit 213 determines the presence or absence of a touch operation based on the output from the touch panel 16. If there is no touch operation (step c13: No), the process proceeds to step c25. If there is a touch operation (step c13: Yes), the process proceeds to a transmission permission / inhibition determination process (step c15). This transmission permission / inhibition determination process is performed in the same manner as the processing procedure shown in FIG. If the transmission control unit 213 determines that transmission is possible (step c17: Yes) and communication has been established (step c19: Yes), the transmission control unit 213 determines the transmission start position. A process of transmitting the captured image of the thumbnail together with the recording request to the external device 9 is performed (step c21). Subsequently, the image display control unit 211 determines that the transmitted captured image has been transmitted and deletes the thumbnail display (step c23).

  FIG. 20 is a diagram illustrating a transition example of a transmission screen displayed on the display unit 15 when the transmission type of the external device 9 is a transmission type for transmitting a plurality of captured images. As shown in FIG. 20, when the transmission type of the external device 9 is a transmission type for transmitting a plurality of captured images, the display unit 15 displays thumbnails Sa to Se of the captured images recorded in the digital camera 1. Is moved and displayed (a). In this transmission screen, a marker MK21 is displayed near the center of the screen, and the position indicated by the marker MK21 is set as a transmission start position. The thumbnails Sa to Se, for example, move toward the screen with the right end side as the movement start position, and move linearly toward the transmission start position arranged in a row and indicated by the marker MK21. More specifically, for example, the latest photographed image is used as the head, arranged and displayed in the order of photographing. When the user performs a touch operation on the thumbnail that has been moved to the transmission start position, the data of the captured image is transmitted to the external device 9. For example, when the thumbnail Sb is touched in the state shown in FIG. 20A, an internal process for transmitting the captured image data of the thumbnail Sb to the external device 9 is performed. At this time, as shown in FIG. 20B, an effect display is performed in which the thumbnail Sb of the captured image subjected to the transmission process disappears in the lower part of the transmission screen. Therefore, the user can transmit the data to the external device 9 after selecting and confirming transmission of a desired captured image while confirming the display content of the transmission screen. According to this, a photographed image can be selected by a simple and intuitive operation, and the photographed image data can be definitely transmitted from the digital camera 1 to the external device 9.

  On the other hand, as shown in FIG. 17, when it is determined that transmission is not possible (step c17: No), or when communication is interrupted (step c19: No), the process proceeds to step c25.

  In step c25, the transmission control unit 213 determines whether or not all the captured images to be transmitted have been transmitted. If all the captured images to be transmitted have been transmitted (step c25: Yes), step b11 in FIG. Return to On the other hand, if it is not transmitted (step c25: No), it is determined whether or not the timer has exceeded a predetermined time (for example, 5 minutes). And when it is not over (step c27: No) and there is no end operation (step c29: No), it returns to step c7. Moreover, when it exceeds (step c27: Yes), and there exists completion | finish operation (step c29: Yes), it returns to step b11 of FIG.

  Next, a procedure of basic processing of the digital camera 1 will be described. FIG. 21 is a flowchart illustrating a procedure of basic processing performed by the digital camera 1. When the power is turned on, the digital camera 1 performs processing according to the mode selected by the user operation. That is, when the currently selected mode is the shooting mode (step f1: Yes), the control unit 21 activates the imaging unit 11 to capture an image (step f3), and uses the captured image as a live view image. Processing to display on the display unit 15 is performed (step f5). Then, while there is no shooting instruction (step f7: No), the process returns to step f3 to repeat the process, and the live view image is updated and displayed for each frame. When a release switch (not shown) is pressed and shooting is instructed (step f7: Yes), shooting processing is performed, and the generated captured image data is recorded in the recording unit 17 (step f9).

  When the recording of the captured image is completed, the control unit 21 performs a process (rec view) for displaying the captured image (step f11). And the control part 21 starts the near field communication part 19 (step f13), and if communication is not established and it is interrupted | blocked (step f15: No), it will transfer to step f25. On the other hand, when communication is established (step f15: Yes), the process proceeds to a transmission permission / inhibition determination process (step f17). This transmission permission / inhibition determination process is performed in the same manner as the processing procedure shown in FIG. If the transmission control unit 21 determines that transmission is possible as a result of the transmission permission / inhibition determination process (step f19: Yes) and communication is established (step f21: Yes), the image is captured in step f9. And the process which transmits the picked-up image displayed on the display part 15 by step f11 to the external apparatus 9 with a display request | requirement is performed (step f23). Then, the process proceeds to step f25. In this case as well, a transmission screen as shown in FIGS. 19B and 19C is displayed on the display unit 15. In step f25, the control unit 21 turns off the proximity communication unit 19, and then proceeds to step f45.

  On the other hand, when the current mode is not the shooting mode (step f1: No) and in the playback mode (step f25: Yes), the control unit 21 performs a playback process of the shot image recorded in the recording unit 17, The captured images are sequentially switched as reproduced images and displayed on the display unit 15 (step f27). At this time, first, a list of images captured in the past may be displayed in a thumbnail format. Then, the captured image selected from the list may be reproduced and displayed as a reproduced image.

  Subsequently, the control unit 21 activates the proximity communication unit 19 (step f29), and proceeds to a display image transmission process (step f31). This display image transmission processing is performed in the same manner as the processing procedure shown in FIG.

  When communication with the external device 9 is established during execution of the basic process (step f33: Yes), the control unit 21 determines the type of the external device 9 with which communication has been established (step f35). . Then, when the captured images are transmitted one by one to the external device 9 according to the identified transmission type (step f37: Yes), the image display control unit 211 selects one captured image and performs the reproduction process. Is displayed on the display unit 15 (step f39). The captured image to be selected can be set as appropriate, such as a captured image with the latest shooting date and time, a captured image reproduced first in the playback mode, or a captured image selected by the user. Then, the process proceeds to a display image transmission process (step f41), and then the process proceeds to step f45 to turn off the proximity communication unit 19. The display image transmission process in step f41 is performed in the same manner as the processing procedure shown in FIG. On the other hand, when a plurality of photographed images are transmitted to the external device 9 according to the transmission type (step f37: No), the process proceeds to a recorded image transmission process (step f43), and then the process proceeds to step f45 to perform proximity communication. The unit 19 is turned off. The recorded image transmission process in step f43 is performed in the same manner as the processing procedure shown in FIG.

  In step f45, it is determined whether or not to end the basic process. For example, when the power switch is instructed by the operation of the button switch 7, this process is finished (step f45: Yes). On the other hand, if not finished (step f45: No), the process returns to step f1.

  Next, a processing procedure performed by the external device 9 will be described. FIG. 22 is a flowchart illustrating a procedure of basic processing performed by the external device 9. Here, it is assumed that the external device 9 is turned on.

  As shown in FIG. 22, first, the communication signal transmission control unit 971 starts a periodic communication signal transmission process by the proximity communication unit 96 (step g1). When communication is established between the digital camera 1 and the external device 9 (step g2: Yes), the control unit 97 enters a standby state until a captured image is received (step g3: Yes). The request content is determined (step g5). And the control part 97 performs the process which records the picked-up image received with the recording request | requirement on the recording part 95 (step g7), and transfers to step g27 after that. On the other hand, the control unit 97 performs processing for displaying the captured image received together with the display request on the display unit 92 (step g9), and then proceeds to step g27. Here, the captured image received together with the display request may also be recorded in the recording unit 95.

  On the other hand, when viewing of the television is instructed by a user operation (step g11: Yes), the control unit 97 performs a process for outputting the broadcast program of the channel selected by the user (step g13). If an instruction to end watching TV is given, the process proceeds to step g27. When an Internet connection instruction is input by a user operation (step g15: Yes), the control unit 97 performs a process for connecting to a site designated by the user via the network N (step g17). . If the disconnection to the Internet is instructed, the process proceeds to step g27.

  When a content recording instruction is input by a user operation (step g19: Yes), a process of recording content data designated by the user in the recording unit 95 is performed (step g21). The content data recorded here includes, for example, content data disclosed / provided on a site on the Internet connected in step g17. When this content data is recorded, a content data download request is transmitted to the connected site, and the designated content data is acquired and recorded in the recording unit 95. The acquisition of content data is not limited to that provided on the Internet, and may be provided by an information recording medium such as a memory card or a CD-ROM. Then, when the recording of the content data is finished, the process proceeds to step g27.

  If a content data playback instruction is input by a user operation (step g23: Yes), the content data designated by the user is read from the recording unit 95 and played back (step g25). The content data to be reproduced here is downloaded by connecting to the Internet or the like, and is recorded in the recording unit 95 in addition to the content data recorded in the recording unit 95 in step g21 and recorded in the recording unit 95 in steps g3 (Yes) to step g9. Contains images. If an instruction to end reproduction of the content data is given, the process proceeds to step g27.

  In step g27, it is determined whether or not the basic process is to be ended. If the basic process is to be ended (step g27: Yes), this process is ended. On the other hand, if not finished (step g27: No), the process returns to step g2.

  As described above, according to the communication system 100 of the present embodiment, when communication is established between the digital camera 1 whose power is on and the external device 9 whose power is off, digital communication is established. While the camera 1 is powered on and activated, a captured image to be transmitted to the external device 9 can be selected and displayed on the display unit 15. Then, after the captured image is displayed, the displayed captured image can be transmitted to the external device 9. Therefore, after the digital camera 1 is automatically turned on and activated to display the captured image, the captured image can be transmitted to the external device 9. According to this communication system 100, there is an effect that a photographed image recorded in the digital camera 1 can be transmitted to the external device 9 easily and appropriately without requiring a cable connection or the like.

  In addition, the digital camera 1 is configured to accept a transmission confirmation instruction from the user after starting its own device and displaying a captured image. When this transmission confirmation instruction is received, the digital camera 1 externally displays the captured image displayed. It can be transmitted to the device 9. Therefore, a desired captured image can be appropriately transmitted to the external device 9 after the user confirms the captured image to be transmitted. In addition, since communication is not performed simply by establishing communication between the digital camera 1 and the external device 9, erroneous transmission such as when the digital camera 1 is accidentally brought close to the external device 9 is performed. Can be prevented.

  Note that the transmission screen in the case where the transmission type of the external device 9 shown in FIG. 20 is a transmission type for transmitting a plurality of photographed images is an example, and the present invention is not limited to this. FIG. 23 is a diagram illustrating a modification of the transmission screen. As shown in FIG. 23, a transmission screen displaying a list of thumbnails of captured images recorded in the recording unit may be displayed. Then, when a thumbnail is selected from the thumbnail list by a touch operation, the captured image data may be transmitted to an external device. For example, when the thumbnails Sf, Sg, and Sh are touched, the data of the three captured images is transmitted to the external device.

  24 to 27 are diagrams showing transition examples of transmission screens in other modified examples. In the transmission screen shown in FIG. 24, a display body O1 simulating a tunnel is displayed at the left end toward the screen. For example, the opening position of the display body O1 is set as a transmission start position, and the screen is opposed to the transmission start position. The left end of is the movement start position. The thumbnails Sn to Ss are arranged in a line in the right direction toward the screen, for example, and linearly move from the movement start position to the transmission start position. Then, the captured image data is transmitted to the external device in order from the thumbnail that has reached the transmission start position. For example, FIG. 24A shows a state in which the thumbnail Sn reaches the transmission start position and enters the tube of the display body O1, and at this timing, the captured image data of the thumbnail Sn is transmitted to the external device. .

  In this modification, data transmission is stopped when a thumbnail displayed on the transmission screen is touched. For example, it is assumed that the thumbnail Sp is touched as shown in FIG. By this touch operation, the movement of the thumbnail Sp and the thumbnails Sq to Ss on the right side of the thumbnail Sp is stopped, and transmission of the shot image shot before the shot image of the thumbnail Sp is stopped. The thumbnail So that is located to the left of the thumbnail Sp and has not reached the transmission start position continues to move, and the captured images are sequentially transmitted to the external device at the timing when the transmission start position is reached. According to this, while moving from the movement start position to the transmission start position, the captured image data is not transmitted to the external device, and the user can instruct transmission stop during this period. Therefore, a desired captured image can be selected by a simple and intuitive operation while confirming the display content of the transmission screen, and the captured image data can definitely be transmitted from the digital camera to the external device.

  Further, in this modification, an instruction for a captured image to be transmitted is received by a slide operation on the transmission screen. For example, in the state shown in FIG. 24B, it is assumed that, for example, as shown in FIG. 25A, the thumbnail Sp on the transmission screen is touched and a sliding operation (drag) is performed along the moving direction while touching. In this case, the captured images after the thumbnail Sp are targeted for transmission, and the movement starting from the thumbnail Sp is resumed (FIG. 25B).

  Alternatively, the captured image of the thumbnail on the left side of the thumbnail may be excluded from the transmission target by a slide operation on the moving thumbnail. For example, it is assumed that a sliding operation is performed on the moving thumbnail Sw shown in FIG. In this case, as shown in FIG. 26B, an effect display is performed in which the thumbnails St, Su, Sv on the left side of the thumbnail Sw are dropped from the movement path and disappear at the lower part of the transmission screen. These thumbnails St, Su, and Sv do not reach the transmission start position, and the captured images are not transmitted to the external device. Then, as shown in FIG. 26C, the movement of the thumbnail Sw and the subsequent thumbnails is resumed. According to this, it is possible to resume the movement of the thumbnail by the slide operation on the stopped thumbnail, and to exclude the photographed image of the thumbnail located between the transmission start position and the slide-operated thumbnail from the transmission target.

  Further, as shown in FIG. 27A, when the thumbnail Sx is slid downward, the captured image of the thumbnail Sp may be excluded from the transmission target. At this time, as shown in FIG. 27B, an effect display is performed in which the thumbnail Sx is dropped from the movement route and disappears in the lower part of the transmission screen. Therefore, the thumbnail Sx does not reach the transmission start position, and the captured data is not transmitted to the external device. That is, when a slide operation is performed on a thumbnail, a captured image to be transmitted may be reset according to the slide direction. As described above, according to the present modification, even when there is a mixture of what is transmitted to the external device and what is not transmitted, the captured image to be transmitted to the external device is more appropriately selected. Can do.

  Here, the proximity wireless communication between the proximity communication units 18 and 96 is a proximity wireless communication that is performed in a non-contact state and is capable of high-speed and large-capacity data transfer, and can achieve a transfer speed of, for example, 375 Mbps or more. A non-contact proximity wireless communication is assumed. Thereby, all or a part of the captured image recorded in the digital camera 1 can be instantaneously transmitted to the external device 9.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the spirit of the invention.

(Modification 1)
FIG. 28 is a block diagram illustrating an example of main internal configurations of the digital camera 1b and the external device 9b that configure the communication system 100b of the first modification. In the first modification, the proximity communication unit 19b of the digital camera 1b notifies the presence thereof and periodically transmits a communication signal for turning on the external device 9b. The external device 9b can be automatically turned on.

  On the other hand, the near field communication unit 96b is for performing near field wireless communication with the external device 9b. The near field communication unit 96b transmits and receives radio signals to and from the near field communication unit 19b of the digital camera 1b by an antenna and demodulates the received signal. In addition to processing, it is configured by a transmission / reception circuit or the like that modulates a transmission signal. The proximity communication unit 96b includes an activation unit 961b that activates the control unit 97b in a stopped state or a standby state by electromagnetic induction generated in the antenna by receiving a communication signal transmitted from the digital camera 1.

  According to this, the external device 9b is activated by bringing the digital camera 1b closer to the external device 9b, and the captured image to be transmitted selected to the activated external device 9b in the same manner as in the embodiment is transmitted to the external device 9b. can do.

  FIG. 29 and FIG. 30 are diagrams for explaining an outline of communication performed between the digital camera 1b and the external device 9b in the first modification. In the first modification, the external device 9b receives the communication signal transmitted from the digital camera 1b, activates the own device, and displays the content data recorded in the own device on the display unit 92 A process of transmitting photographed image data to the digital camera 1b is performed.

  As shown in FIG. 29, when the external device 9b receives a communication signal transmitted from the digital camera 1b (j11), the external device 9b turns on its own power and notifies the digital camera 1b of reception (j13). As a result, communication is established between the digital camera 1b and the external device 9b. The digital camera 1b that has established communication notifies the external device 9b of communication establishment (j15), and in response to this, the external device 9b selects predetermined content data recorded in its own device as a transmission target, It is displayed on the display unit 92. The content data to be transmitted is content data downloaded by the external device 9b connected to the Internet, for example.

  Then, when communication is established between the external device 9b and the digital camera 1b in the state where the content data is displayed on the display unit 92 in this manner, the external device 9b sends a reception request to the digital camera 1b as shown in FIG. Transmit (j21). The digital camera 1b that has received this reception request notifies the external device 9b of the standby state (j23). In response to this, the external device 9b transmits the content data being displayed to the digital camera 1b (j25), and the digital camera 1b receives the content data.

  Also, in the first modification, the communication signal is not always transmitted from the digital camera 1b, but the proximity communication unit 19b is activated as necessary to transmit the communication signal. That is, the digital camera 1b includes an image change detection unit 25 that detects the displacement of the camera body by image processing.

  The image change detection unit 25 is for detecting a motion between frames based on the image data output from the imaging unit 11, and is the same in each live view image captured by the imaging unit 11 for each frame. A motion vector representing the amount of change in the subject position is calculated. Then, the communication signal transmission control unit 215b of the control unit 21b detects the displacement of the camera body by determining the moving direction of the camera body based on the motion vector calculated by the image change detection unit 25.

  The control unit 21b includes a communication signal transmission control unit 215b that periodically transmits a communication signal via the proximity communication unit 19b. The communication signal transmission control unit 215b performs communication at an appropriate timing after performing shooting processing in the shooting mode, performing playback processing in the playback mode, or when a communication start instruction is input by the user. Perform signal transmission processing.

  FIG. 31 is a flowchart showing a communication signal transmission process. In this communication signal transmission process, first, the displacement of the camera body is detected by the displacement detector 13 (step i1). Then, the communication signal transmission control unit 215b detects the movement of the camera body based on the result of displacement detection by the displacement detection unit 13. When the camera body moves according to a predetermined pattern set in advance (step i3: Yes), the process proceeds to step i5.

  That is, in step i5, the image change detection unit 25 detects a motion between images captured from the imaging unit 11 for each frame. Then, the communication signal transmission control unit 215b detects the movement of the camera body based on the detection result by the image change detection unit 25, and when the movement of the camera body follows the predetermined pattern set in advance (step) i7: Yes), the proximity communication unit 19b is activated to start a communication signal transmission process (step i9).

  According to this, the displacement of the camera body is detected by both the displacement detection unit 13 and the image change detection unit 25, and when both of them detect the movement of the camera body according to a predetermined pattern, transmission of a communication signal is started. be able to. According to this, communication with the external device 9b is not performed unless the camera body is moved according to a predetermined pattern at the user's will. Therefore, it is possible to reduce power consumption accompanying transmission of communication signals to the external device 9b.

  The communication signal transmission process may be terminated when a predetermined time has elapsed since the communication signal transmission process was started. Similarly, when the communication is interrupted after the communication is established once, the transmission process of the communication signal may be terminated when a predetermined time has elapsed since the disconnection. According to this, power consumption of the digital camera 1b can be further reduced.

(Modification 2)
Also, when it is determined that transmission is impossible in the transmission permission determination process of step d3 of FIG. 16 or step c15 of FIG. 17, or when it is determined that communication is interrupted at step d7 of FIG. 16 or step c19 of FIG. Is in a state where transmission of the captured image to be transmitted displayed on the display unit 15 at that time to the external device 9 is interrupted. When there is an interruption in this way, a captured image that has not been transmitted may be recorded in the recording unit. Then, when the communication with the external device is established, the captured image may be displayed again on the display unit and transmitted to the external device.

(Modification 3)
Further, when the mode of the digital camera is neither the shooting mode nor the playback mode, and communication is not established with the external device, and the display unit is in the ON state, for example, transmission described in Modification 3 A process for displaying a message prompting the user to bring the digital camera closer to an external device is performed for a predetermined time (for example, (2 minutes) You may make it wait. As a result, when the digital camera is brought close to the external device and communication is established, the captured image being displayed may be transmitted to the external device.

  FIG. 32 is a flowchart illustrating a procedure of basic processing performed by the digital camera according to the third modification. In the third modification, the display unit is turned off when there is no operation input for a predetermined time with the power of the digital camera turned on.

  As shown in FIG. 32, the digital camera performs processing according to the mode selected by the user operation. That is, when the mode selection operation is input and the mode is switched to the shooting mode (step h1: Yes), if the display unit is in the OFF state (step h3: Yes), the control unit starts the display unit (step h). h5). Then, the process proceeds to shooting mode processing (step h7). This photographing mode process is performed in the same manner as steps f3 to f25 in FIG. Then, the process proceeds to step h41.

  On the other hand, when the mode selection operation is input by the user operation and the mode is switched to the reproduction mode (step h9: Yes), the control unit activates the display unit if the display unit is in the OFF state (step h11: Yes). (Step h13). Then, the process proceeds to the reproduction mode process (step h15). This reproduction mode process is performed in the same manner as steps f27 to f31 in FIG. Then, the process proceeds to step h41.

  When communication is established with an external device (step h17: Yes), the control unit activates the display unit (step h21) if the display unit is in an OFF state (step h19: Yes). Then, the process proceeds to communication mode processing (step h23). This communication mode process is performed in the same manner as steps f35 to f45 in FIG. Then, the process proceeds to step h41.

  Then, the mode of the digital camera is not the shooting mode (step h1: No), not the playback mode (step h9: No), and communication is interrupted (step h17: No), and the display unit is OFF. When it is not in a state (step h25: No), the control unit determines whether or not there is an interrupted communication, and when there is (step h27: Yes), the control unit proceeds to step h35. Further, when the control unit determines that the elapsed time from the previous shooting process is short and immediately after shooting (step h29: Yes), the control unit proceeds to step h35. In addition, when the reproduction time is equal to or longer than the predetermined time and there is a captured image that the user has been browsing for a long time (step h31: Yes), the control unit proceeds to step h35. When the control unit determines that the camera body has been stopped for a predetermined time or more based on the result of displacement detection by the displacement detection unit during reproduction of the captured image (step h33: Yes), the process proceeds to step h35. Transition.

  That is, in step h35, the control unit activates the proximity communication unit. When communication is established with the external device (step h37: Yes), the control unit transmits a corresponding captured image together with a display request to the external device with which communication is established (step h39). Specifically, if it is a branch from step h27, the captured image to be transmitted displayed at that time is set as the corresponding captured image. If it is a branch from step h29, the photographed image photographed by the photographing process is set as the corresponding photographed image. If it is a branch from step h31, the captured image viewed for a long time is set as the corresponding captured image. If it is a branch from step h33, the captured image being reproduced is set as the corresponding captured image. And a control part turns OFF a near field communication part (step h40), and transfers to step h41.

  That is, in step h41, it is determined whether or not to end the basic process. For example, when the power OFF is instructed, this process is finished (step h41: Yes). On the other hand, if not finished (step h41: No), the process returns to step h1.

(Other variations)
In the above-described embodiment, the configuration in which the transmission type is set in advance as the external device data 171 in association with the external device of the communication partner has been described. However, the present invention is not limited to this. For example, when communication is established, the external device may transmit a transmission type corresponding to the status of the own device to the digital camera. For example, it is configured to send the transmission type according to the application running on the external device, and if the mail software or browser software is running, it sends a transmission type that sends multiple shot images, while printing If the software is running, it is possible to transmit a transmission type for transmitting one photographed image.

  In the above-described embodiment, a digital camera has been described as an example of the first device. However, the first device is not limited to a digital camera. For example, a mobile phone, a portable game machine, a notebook computer, a portable music player, etc. It can be applied to various portable devices capable of transmitting and receiving data to and from other devices. For example, in a portable music player, the present invention can be applied when music data is transmitted / received to / from an external device.

  In the above-described embodiment, the case where a photographed image is transmitted and received as an example of content data has been described. However, the present invention can be similarly applied to the case where sound data such as music data and audio data described above is transmitted and received as content data.

It is a schematic perspective view which shows the front side of a digital camera. It is a schematic perspective view which shows the back side of a digital camera. It is explanatory drawing which showed a mode that a digital camera and an external apparatus communicate, from the side surface side. It is explanatory drawing which showed a mode that a digital camera and television communicate, from the side surface side. It is a figure explaining the outline | summary of the communication performed between a digital camera and an external apparatus. It is another figure explaining the outline | summary of the communication performed between a digital camera and an external apparatus. It is a block diagram which shows an example of the main internal structures of the digital camera and external apparatus which comprise a communication system. It is a figure for demonstrating the displacement detection of the camera main body by a displacement detection part. It is a figure explaining an example of the detection principle of the movement amount of the camera main body using an acceleration sensor. It is another figure explaining the detection principle of the movement amount of the camera main body using an acceleration sensor. It is another figure explaining the detection principle of the movement amount of the camera main body using an acceleration sensor. It is another figure explaining the detection principle of the movement amount of the camera main body using an acceleration sensor. It is a figure explaining the detection principle of the rotation amount of the camera main body using an angular velocity sensor. It is another figure explaining the detection principle of the rotation amount of the camera body using an angular velocity sensor. It is a figure explaining the detection principle of a touch panel. It is another figure explaining the detection principle of a touch panel. It is a flowchart which shows the procedure of a transmission process. It is a flowchart which shows the procedure of a display image transmission process. It is a flowchart which shows the procedure of a recording image transmission process. It is a flowchart which shows the procedure of a transmission availability determination process. It is a figure which shows the example of a transition of the transmission screen displayed on a display part when the transmission classification of an external apparatus is a transmission classification which transmits a picked-up image one sheet at a time. It is a figure which shows the example of a transition of the transmission screen displayed on a display part, when the transmission classification of an external apparatus is a transmission classification which transmits several picked-up images. It is a flowchart which shows the procedure of the basic process which a digital camera performs. It is a flowchart which shows the procedure of the basic process which an external apparatus performs. It is a figure which shows the modification of a transmission screen. It is a figure which shows the example of a transition of the transmission screen in another modification. It is a figure which shows the example of a transition of the transmission screen in another modification. It is a figure which shows the example of a transition of the transmission screen in another modification. It is a figure which shows the example of a transition of the transmission screen in another modification. It is a block diagram which shows an example of the main internal structures of the digital camera and external apparatus which comprise the communication system of the modification 1. It is a figure explaining the outline | summary of the communication performed between a digital camera and an external apparatus in the modification 1. FIG. It is a figure explaining the outline | summary of the communication performed between a digital camera and an external apparatus in the modification 1. FIG. It is a flowchart which shows the procedure of a communication signal transmission process. 10 is a flowchart illustrating a procedure of basic processing performed by a digital camera according to Modification 3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Digital camera 3 Camera body 4 Imaging lens 5 Release switch 7 Button switch 8 Grip part 11 Imaging part 12 Image processing part 13 Displacement detection part 14 Operation part 15 Display part 16 Touch panel 17 Recording part 171 External device data 18 Clock part 19 Proximity communication Unit 20 Start-up unit 21 Control unit 211 Image display control unit 213 Transmission control unit 9 External device 91 Operation unit 92 Display unit 93 Communication unit 94 Broadcast reception unit 95 Recording unit 96 Proximity communication unit 97 Control unit 971 Communication signal transmission control unit 100 Communication system

Claims (2)

A communication system in which a first device and a second device transmit and receive content data by performing short-range wireless communication,
The first device is:
A recording unit for recording content data;
A proximity communication unit that performs proximity wireless communication with the second device;
An activation unit that activates the first device by receiving a communication signal transmitted from the second device;
A display control unit for displaying predetermined content data on a display unit when communication is established with the second device;
A transmission control unit configured to transmit the predetermined content data subjected to the display process to the second device via the proximity communication unit;
With
The second device is:
A proximity communication unit that performs proximity wireless communication with the first device;
A transmission control unit that periodically transmits a communication signal via the proximity communication unit;
And receiving the content data transmitted from the first device via the proximity communication unit. The first device is:
A transmission instructing unit for instructing transmission start of the predetermined content data;
2. The communication according to claim 1, wherein the transmission control unit transmits the predetermined content data subjected to the display process to the second device when a transmission start is instructed by the transmission instruction unit. system.

Images