JP2010181509A - Electronic device - Google Patents

Abstract

A function of an electronic device is limited according to a place where the electronic device is used.
A projector unit 120 that projects an image onto a projection surface, a GPS unit 110 that acquires current position information of a user, and an image of the image by the projector unit 120 based on the position information acquired by the GPS unit. Control means 101 for determining whether or not projection is possible. Further, the control unit 101 includes a table storing projection parameter values corresponding to changes in position information, and the control unit 101 changes the projection parameter values according to changes in position information when the projector unit 120 performs projection. To do.
[Selection] Figure 3

Description

  The present invention relates to an electronic device.

  2. Description of the Related Art Conventionally, there has been known a cellular phone (electronic device) that includes a GPS receiver that includes an imaging unit and a projection unit and that can receive a plurality of GPS signals and calculate a current position, a current time, and the like (see the following publication).

JP 2005-203953 A

  If the mobile phone is used, shooting and projection can be performed in various places. However, when the mobile phone is brought into a place where photographing or projection is prohibited, such as in a movie theater, a museum, or a hospital, there is a possibility that the flash photographing function or the projection function may work due to an erroneous operation.

  The present invention has been made in view of such circumstances, and the problem is to limit the function of the device according to the place where the electronic device is used.

  In order to solve the above-described problem, the invention according to claim 1 is a projector unit that projects an image onto a projection surface, a GPS unit that acquires current position information of a user, and the position acquired by the GPS unit. And control means for determining whether or not projection by the projector unit is possible based on the information.

  According to a second aspect of the present invention, in the electronic device according to the first aspect of the present invention, the electronic device includes a table in which values of projection parameters corresponding to the change in the position information are stored, and the control unit projects using the projector unit. In this case, the value of the projection parameter is changed according to the change of the position information.

    According to a third aspect of the present invention, in the electronic device according to the second aspect, at least a light amount and a volume are included as the types of the parameters.

  According to a fourth aspect of the present invention, in the electronic device according to any one of the first to third aspects, an imaging unit that acquires a subject image is provided.

  The invention according to claim 5 is an imaging unit that acquires a subject image, a GPS unit that acquires current position information of a user, and the imaging unit according to a change in the position information acquired by the GPS unit. And a control means for changing the value of the shooting parameter according to the above.

  According to this invention, the function of the device can be restricted according to the place where the electronic device is used.

FIG. 1 is a perspective view of the camera. FIG. 2 is a rear view of the camera. FIG. 3 is a block diagram of the camera according to the first embodiment of the present invention. FIG. 4 is a flowchart for explaining the process of whether to permit projection. FIG. 5 is a flowchart for explaining the process of changing the projection condition. FIG. 6 is a table showing the relationship between locations and parameters. FIG. 7 is a block diagram of a camera according to the second embodiment of the present invention. FIG. 8 is a flowchart for explaining processing for changing the photographing availability and photographing conditions performed by the CPU. FIG. 9 is a table showing the relationship between location and shooting parameters.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 3 is a block diagram of the camera 2 according to the first embodiment of the present invention.

  The camera (electronic device) 2 includes a control unit 100, an imaging unit 130, and a projector unit 120.

  The control unit 100 includes a CPU (control means) 101, a memory 102, an operation member 103, a liquid crystal display 22, a speaker 25, an external interface 106, a power circuit 107, a microphone 109, a GPS unit 110, and a memory card 200. . A battery 108 is connected to the power supply circuit 107.

  The GPS unit 110 includes a GPS receiver 111 and a GPS antenna 112. The GPS receiver 111 calculates the latitude, longitude, altitude of the position where the user is currently located, and the accurate current time based on positioning information from a plurality of GPS satellites received by the GPS antenna 112, and outputs the calculation result to the CPU 101. .

  The projector unit 120 includes a projection optical system 121, a liquid crystal panel 122, an LED light source 123, a projection control circuit 124, and a lens driving circuit 125.

  The imaging unit 130 includes an imaging optical system 131, an imaging element 132 such as a CCD or CMOS, an imaging control circuit 133, and a lens driving circuit 134.

  Based on the control program, the CPU 101 inputs a signal from the projector unit 120 to perform a predetermined calculation, and outputs a control signal to the projector unit 120 based on the calculation result to control the projection operation of the projector unit 120.

  Further, the CPU 101 determines whether the current position is indoor or outdoor based on the output of the GPS unit 110. Furthermore, when projecting by the projector unit 120, the CPU 101 changes the values of projection parameters (light quantity and volume) according to the change in the position information obtained by the GPS unit 110. Note that the values of the projection parameters corresponding to the change in the position information are stored in the memory card 200 as a table.

  Further, based on the control program, the CPU 101 inputs a signal from the imaging unit 130 and performs a predetermined calculation, and outputs a control signal to the imaging unit 130 to control the shooting operation of the imaging unit 130.

  The control program is stored in a non-volatile memory (not shown) in the CPU 101.

  The memory 102 is used as a work area for the CPU 101. The operation member 103 outputs a signal corresponding to the operation to the CPU 101.

  The memory card 200 is a non-volatile memory and is a storage medium that can be mounted in a card slot (not shown) of the control unit 100. The memory card 200 stores captured image data and images and other data captured from other devices.

  The external interface 106 transmits / receives data to / from an external device (not shown) via a cable (not shown) in response to a command from the CPU 101. The data is video / audio data.

  The speaker 25 receives the audio signal from the CPU 101 and reproduces the audio. The microphone 109 acquires an external sound based on a command from the CPU 101. The liquid crystal display 22 displays an image (including a through image), a menu screen, and the like according to a command from the CPU 101.

  The battery 108 supplies power to the projector unit 120 and the imaging unit 130. The power supply circuit 107 includes a DC / DC conversion circuit, a charging circuit, and a voltage detection circuit.

  The projection control circuit 124 controls the liquid crystal panel 122, the LED light source 123, and the lens driving circuit 125, respectively, according to instructions from the CPU 101. The projection control circuit 124 supplies a current from the battery 108 to the LED light source 123 according to a command from the CPU 101. The LED light source 123 illuminates the liquid crystal panel 122 with brightness according to the supply current.

  The projection control circuit 124 generates a liquid crystal panel drive current according to the image data sent from the CPU 101, and drives the liquid crystal panel 122 with the generated drive current.

  The lens driving circuit 125 moves the projection optical system 121 in the optical axis direction based on a command from the projection control circuit 124. The projection optical system 121 enlarges and projects an image emitted from the liquid crystal panel 122 through the projector projection window 10 (see FIG. 1).

  The imaging control circuit 133 controls the imaging element 132 and the lens driving circuit 134 according to commands from the CPU 101, and performs predetermined image processing on the imaging signal output from the imaging element 132. The image processing is, for example, white balance processing. The imaging optical system 131 forms a subject image on the light receiving surface of the imaging element 131. The imaging control circuit 133 starts imaging by the imaging element 132 in response to a command from the CPU 101, inputs an imaging signal from the imaging element 132 after the imaging is completed, performs image processing, and outputs the image data to the control unit 100.

  The lens driving circuit 134 drives the imaging optical system 131 in the optical axis direction based on the zoom adjustment signal output from the imaging control circuit 133.

  FIG. 1 is a perspective view of the camera 2 shown in FIG.

  The housing 3 of the camera 2 includes a front cover 4 and a rear cover 6 made of an aluminum plate or the like, and a side cover 7.

  The front cover 4 is provided with a photographing window 8, a projector projection window 10, and a flash window 12 through which flash light is emitted.

  Further, on the top surface of the housing 3, a power switch 14, a shutter button 16 for instructing a release operation, a mode switching button 18 for switching between a photographing mode for performing camera photographing and a projector mode for performing projector projection, and a projector projection time And a projector focus lever 20 which is an operation lever for adjusting the focus of the projected image. The power switch 14, the shutter button 16, the mode switching button 18, the projector focus lever 20, and the operation button 24 constitute the operation member 103 shown in FIG.

  FIG. 2 is a rear view of the camera 2.

  The rear cover 6 includes a liquid crystal display 22, an operation button 24 including a multi-selector for selecting an operation menu displayed on the liquid crystal display 22, and a speaker 25 that outputs sound in the playback mode or the projector mode. Is provided.

  In addition, a GPS receiver 111 and a GPS antenna 112 constituting the GPS unit 110 are accommodated in the housing 3. The GPS unit 110 is supported on the housing 3 by a support member (not shown).

  Next, a process for determining whether or not projection by the projector unit 120 is possible will be described with reference to the flowchart of FIG.

  FIG. 4 is a flowchart for explaining the process of whether to permit projection. In FIG. 4, S1 to S6 indicate each step of the process.

  First, the mode switching button 18 is operated to set the projector mode (PJ mode) (S1).

  When the projector mode (PJ mode) is selected, the CPU 101 activates the GPS unit 110 (S2).

  The GPS receiver 111 calculates the current position based on positioning information from a plurality of GPS satellites received by the GPS antenna 112, and outputs the calculation result to the CPU 101 (S3).

  The CPU 101 determines whether or not projection by the projector unit 120 is possible according to the calculated current position (S4).

  When it is determined that the current position is a place where projection by the projector unit 120 is allowed (YES), the CPU 101 outputs a control signal allowing projection to the projection control circuit 124, and the projector projection window 10 (see FIG. 1) is displayed. Then, the projected image is enlarged and projected on a screen (not shown) or the like (S5).

  On the other hand, when it is determined that the current position is a place where projection by the projector unit 120 is not allowed, such as a hospital or a movie theater (NO), the CPU 101 outputs a control signal for prohibiting projection to the projection control circuit 124. Then, the projection permission / prohibition processing ends, and projection is not performed (S6).

  Next, a process for changing the projection condition when the projection of the projector unit 120 is performed will be described based on the flowchart of FIG.

  FIG. 5 is a flowchart for explaining the process for changing the projection condition, and FIG. 6 is a table showing the relationship between the location (current position) and the parameter. In FIG. 5, S11-S18 show each step of a process. In FIG. 6, light quantity and volume are parameters.

  The steps from S11 to S14 are the same as S1 to S4 shown in FIG.

  When the current position is a place where projection by the projector unit 120 is allowed (YES), it is determined whether or not to change the projection parameters (S15).

  When changing the projection parameters (YES), the parameters are set to values written in the table based on the position information obtained by the GPS unit 110 (S16). For example, in the case of outdoors, both the light amount and the volume are increased (see FIG. 6).

  Thereafter, the image emitted from the liquid crystal panel 122 is enlarged and projected onto a screen or the like (S17).

  When the current position is a place where the projection by the projector unit 120 is prohibited (NO), the process for changing the projection condition ends (S18).

  In the table of FIG. 6, the light amount and the sound volume change depending on the location, but the light amount and the sound volume may be changed depending on not only the location but also the time (daytime or night). In addition to the light quantity and volume, the parameters include contrast and the like.

  Further, for example, when the camera 2 is used only at a certain place, the GPS unit 110 may be set not to be activated, or the parameter change may be determined based on the position information calculated by the GPS unit 110. Good.

  According to this embodiment, when the current position calculated by the GPS unit 110 is a place where the projection by the projector unit 120 is prohibited, the projection is not performed and the process ends. Therefore, the projection is reliably performed at the place where the projection is prohibited. Can be avoided.

  FIG. 7 is a block diagram of the camera 202 according to the second embodiment of the present invention, and FIG. 8 is a flowchart for explaining processing for changing the photographing availability and photographing conditions performed by the CPU 101, and is a part common to the first embodiment. Are denoted by the same reference numerals and description thereof is omitted.

  This embodiment is different from the first embodiment in that the projector unit 120 is not provided.

  Hereinafter, the process of whether or not the photographing unit 130 can perform photographing performed by the CPU 101 will be described. S21 to S28 show the steps of the process.

  For example, when the shutter button 16 is pressed, the shooting mode is automatically selected (S21).

  When the shooting mode is selected, the CPU 101 activates the GPS unit 110 (S22).

  The GPS receiver 111 calculates the current position based on positioning information from a plurality of GPS satellites received by the GPS antenna 112, and outputs the calculation result to the CPU 101 (S23).

  The CPU 101 determines whether or not shooting by the imaging unit 130 is possible according to the calculated current position (S24).

  When it is determined that the current position is a place where shooting by the imaging unit 130 is permitted, it is determined whether or not to change the shooting parameters (S25).

  When it is determined that the current position is a place where photographing is prohibited (NO), the processing for changing whether photographing is possible and photographing conditions ends (S28).

  When changing the shooting parameter (YES), the parameter is set to the value written in the table based on the position information obtained by the GPS unit 110 (S26). When the shooting parameters are not changed (NO), the process proceeds to step S27.

  FIG. 9 is a table showing the relationship between a place (current position) and shooting parameters.

  In FIG. 9, volume, flash, white balance, and ISO sensitivity are displayed as parameters. It can be seen that the volume, flash, white balance, and ISO sensitivity are selected from settings prepared in advance for outdoor daytime, outdoor night, and indoor. Note that the sun, flash, and fluorescent light marks respectively indicate light sources that illuminate a subject in outdoor daytime, outdoor night, and indoor.

  In step S <b> 27, flash light is emitted through the flash window 12, and a subject image is formed on the light receiving surface of the image sensor 132 through the photographing window (not shown).

  According to this embodiment, since shooting is not performed when the current position calculated by the GPS unit 110 is a place where shooting by the shooting unit 130 is prohibited, shooting is surely performed at a place where flash shooting is prohibited. Can not be.

  2: Camera (electronic device), 101: CPU (control means), 110: GPS unit, 120: projector unit, 130: imaging unit.

Claims (5)

A projector unit that projects an image onto a projection surface;
A GPS unit for obtaining the current location information of the user;
An electronic device comprising: control means for determining whether or not projection by the projector unit is possible based on the position information acquired by the GPS unit. A table storing projection parameter values corresponding to changes in the position information;
2. The electronic apparatus according to claim 1, wherein the control unit changes a value of the projection parameter according to a change in the position information when the projector unit projects.   The electronic apparatus according to claim 2, wherein at least a light amount and a sound volume are included as the types of the parameters.   The electronic apparatus according to claim 1, further comprising an imaging unit that acquires a subject image. An imaging unit for acquiring a subject image;
A GPS unit for obtaining the current location information of the user;
An electronic apparatus comprising: control means for changing a value of a parameter for photographing by the imaging unit in accordance with a change in the position information acquired by the GPS unit.

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