CN100380940C - Wireless terminal, base device, wireless system, and method for controlling wireless terminal - Google Patents

Abstract

The TV main body (5) includes a 2SS-CPU (85), a 2AV part (sector) (67), a TV microcomputer (66), and an OSD synthesis unit (93 a). The 2SS-CPU (85) receives video data of a television program and EPG data from the wireless center (3). A2 nd AV part (67) generates a video from video data of a television program. A TV microcomputer (66) generates an EPG video from EPG data. An OSD synthesis unit (93a) superimposes an EPG video on a video of a television program displayed on a TV monitor (71). Thus, when the EPG video is superimposed on the video of the television program and displayed, the response speed to the instruction input by the user can be increased.

Description

Wireless terminal, basic equipment, wireless system, control method of wireless terminal

technology area

The invention relates to a wireless terminal, basic equipment, a wireless system, and a control method for the wireless terminal.

Background technique

In recent years, in receiving and reproducing systems (AV systems) such as video and audio, devices using thin liquid crystal display devices for the monitor portion for reproducing (displaying) video have been developed in large numbers. Once a liquid crystal display device is used, not only can a large-screen display be performed, but also the display device itself has the great advantage of being light in weight and can be made thin.

Also, a system has been disclosed in which the tuner unit (basic equipment) and the monitor unit (wireless terminal) of a television receiver are separated, and a video signal and an audio signal are wirelessly transmitted from the tuner unit to the monitor unit. In this system, the antenna can be connected to a separate tuner section to select a station, and the selected video and audio signals are wirelessly transmitted to the monitor section, and then the video and audio signals are reproduced (see, for example, patent documents 1, 2).

Patent Document 1: Japanese Patent Laid-Open No. 2001-160927

Patent Document 2: Japanese Patent Laid-Open No. 2001-358966

In addition, in the above-mentioned system in which the tuner unit and the monitor unit of the television receiver are separated and connected wirelessly, a GUI (graphical user interface; Graphical User Interface) is displayed on the monitor unit, and the user can control the system by using the GUI. to operate. Specifically, key input for operating the GUI is performed on the monitor side, and GUI start/stop, cursor up/down/left/right keys, etc. are converted into commands for wireless transmission. On the tuner side, commands related to GUI start/end, cursor up/down/left/right keys, etc. are received and decoded, and the OSD function of generating GUI is used on the tuner side to output, and the video signal ( video signal) is output to the transmission unit for wireless AV transmission, converted into an AV stream, and output to the monitor side. This is received on the monitor side, and the video signal including the GUI image is decoded and displayed on the monitor.

In the above system, it is encoded into MPEG form in superimposed form on the tuner side and then sent to the monitor side. On the monitor side, in order to decode the coded signal and display it on the monitor, there is a delay in the time of encoding to MPEG2 and the time of decoding, and the format response to the OSD input deteriorates, and the quality of the GUI format deteriorates.

This problem will be described in detail below. In the system described below, when the user inputs an instruction to display the GUI video, a GUI video display request command is sent to the tuner unit. The tuner unit having received this request command performs the aforementioned GUI video generation process. Then, the tuner section superimposes the above-mentioned GUI video data on the video signal related to the television broadcast, encodes the superimposed video signal in MPEG2 format, and then transmits the encoded signal to the monitor section. Then, the monitor unit decodes the coded signal received from the tuner unit, and displays a video in which the GUI video is superimposed on the TV broadcast video.

In the above system, the GUI video is superimposed on the TV broadcast video on the tuner unit side. Therefore, it is necessary to encode and transmit a video signal in which a GUI image is superimposed on a TV broadcast image, and to receive and decode the encoded data on the monitor side. Here, when the GUI video is superimposed on the video for TV broadcasting, and the superimposed video data is coded and decoded, the data is significantly different from the case where only the video data for TV broadcasting is coded and decoded. The sending is greatly delayed. Therefore, in the above-mentioned system, there has been a problem that the response of the GPU video display to the user's instruction input is degraded. Moreover, there is a problem in handling such a problem, that is, in the above-mentioned system, once the communication state between the tuner unit and the monitor unit deteriorates, the video image for television broadcasting displayed on the monitor unit also deteriorates, and at the same time, the overlapping GUI Video is also degraded.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a wireless terminal, an infrastructure device, a wireless system, a wireless system, etc. that suppress deterioration of response when a second video is superimposed on a first video and displayed on a display unit. A control method of a terminal, a control program of a wireless terminal, and a computer-readable recording medium recording the program.

Contents of the invention

In order to achieve the above object, the wireless terminal of the present invention is a wireless terminal for transmitting and receiving data with the basic equipment, including receiving the first video data from the basic equipment and related data related to the basic equipment and/or the wireless terminal A receiving device, a first video generating device for generating a first video based on the first video data, a second video generating device for generating a second video based on the related data, superimposing the first video on the first video The second video is a video superimposing device for displaying the superimposed video on a display unit, and a rewritable nonvolatile memory storing the EPG data received by the receiving device, the second video is generated The device generates a second video by adding the EPG data stored in the non-volatile memory to the template data stored in the non-volatile memory.

In addition, in order to achieve the above object, the wireless terminal control method of the present invention is a control method of the wireless terminal that performs data transmission and reception with the basic equipment, including the following steps: receiving the first video data from the basic equipment and communicating with the basic equipment. The steps of EPG data related to the video data, the step of generating a first video based on the first video data, the step of generating a second video based on the EPG data, and superimposing the second video on the first video Like, a step of displaying the superimposed video on the display unit, a step of writing the EPG data received from the base device into a rewritable non-volatile memory, and a step of generating the second video The second video is generated by adding the EPG data stored in the nonvolatile memory to the template data stored in the nonvolatile memory.

With the above configuration, the first video data is received from the base device, and the first video is generated based on the first video data, while the EPG data is received from the base device, and the second video is generated based on the EPG data. Then superimpose the second video on the first video, and then display the superimposed video on the display unit. That is, with the above configuration, the wireless terminal executes the generation process of the second video and the superimposition process of the first video and the second video. Therefore, according to the above structure, compared with the existing structure in which these processes are performed on the infrastructure side, since it is no longer necessary to encode and decode overlapping video data, the first video and the second video The display of the superimposed video improves the response speed to the user's instruction input.

In addition, the first video includes a TV broadcast video received by the infrastructure device and a video reproduced by a video recorder or a DVD recorder. In addition, video for TV broadcasting includes not only TV video for terrestrial analog broadcasting and terrestrial digital broadcasting, but also video for receiving satellite broadcasting, video for data broadcasting, and video output from a set-top box for CATA broadcasting. (video broadcast by CATV). In addition, the above-mentioned second video is an EPG (Electronic Program Guide) video.

In order to achieve the above object, the infrastructure device of the present invention includes transmission means for transmitting the first video data and the EPG data to the wireless terminal.

According to the above configuration, the generation process of the second video and the superimposition process of the first video and the second video are executed in the wireless terminal. Therefore, compared with the configuration in which these processes are performed on the infrastructure side, since it is no longer necessary to encode and decode the superimposed video data, the display of the superimposed video of the first video and the second video is more important to the user. The response speed of the indicated input can be improved.

In order to achieve the above objects, a wireless system according to the present invention is constituted by the above wireless terminal, and an infrastructure including transmission means for transmitting the first video data and the EPG data to the wireless terminal.

According to the above configuration, the generation process of the second video and the superimposition process of the first video and the second video are executed in the wireless terminal. Therefore, compared with the configuration in which these processes are performed on the infrastructure side, since it is no longer necessary to encode and decode the superimposed video data, the display of the superimposed video of the first video and the second video is more important to the user. The response speed of the indicated input can be improved.

Other objects, characteristics, and advantages of the present invention can be further understood from the description below. In addition, advantages of the present invention will become more apparent from the following description made with reference to the accompanying drawings.

Description of drawings

FIG. 1 is a functional block diagram showing a configuration example of a wireless AV system according to an embodiment of the present invention.

FIG. 2 is a functional block diagram showing a wireless center constituting the wireless AV system shown in FIG. 1 .

FIG. 3 is a functional block diagram showing a TV main body constituting the wireless AV system shown in FIG. 1 .

FIG. 4 is a schematic diagram showing a configuration example of data transmitted and received between a wireless center and a TV main body constituting the wireless AV system shown in FIG. 1 .

FIG. 5 is a schematic diagram showing a remote control device constituting the wireless AV system shown in FIG. 1 .

6 shows GUI images displayed in the TV system shown in FIG. 3, (a) shows a menu screen, (b) shows a channel setting screen, and (c) shows a channel setting screen after selecting the automatic preset function.

Fig. 7 shows the GUI video displayed in the TV system shown in Fig. 3, (a) shows the channel setting screen when the automatic preset function is determined, and (b) shows the channel setting screen displayed when the automatic preset function is executed. On the screen, (c) is a screen showing a preset channel number.

FIG. 8 is a flowchart showing the flow of processing in the wireless AV system shown in FIG. 1 .

FIG. 9 is an explanatory diagram schematically showing the wireless AV system shown in FIG. 1 .

FIG. 10 is a functional block diagram showing the configuration of an OSD synthesis unit included in the TV main body shown in FIG. 3 .

Fig. 11 is a flowchart showing the steps executed by the TV main body 5 in the automatic preset processing in the embodiment of the present invention.

Fig. 12 is a flowchart showing the steps performed by the wireless center 3 in the automatic preset processing according to the embodiment of the present invention.

Fig. 13 is a flowchart showing each step in the process of displaying an EPG video according to an embodiment of the present invention.

Fig. 14 (a) shows the video displayed in the TV main body shown in Fig. 3, and Fig. 14 (b) shows the video displayed in the TV main body of the existing structure when the communication state between the wireless center and the TV main body deteriorates. Fig. 14(c) shows the video displayed on the TV main body shown in Fig. 3 when the communication state between the wireless center and the TV main body deteriorates.

Detailed ways

Embodiment 1

The wireless AV system (television receiving and reproducing system) according to the embodiment of the present invention has a form in which the monitor side (AV output device) and the wireless center equipped with the tuner are separated, and communication is mainly performed between the two by wireless means. system. In such a system, there is an input unit for operating the GUI on the monitor side, and an OSD (on screen display; on-screen display) for generating the input content input at the input unit, and displaying it on the screen. The control of the display unit on the monitor side determines the control data from the OSD displayed on the display unit at the same time, and sends the control data to the tuner side after the control data is determined.

Next, a wireless AV system according to an embodiment of the present invention will be described by taking a system for displaying television broadcasts on the monitor side as an example. The GUI displayed on the monitor side provides, for example, various menu displays of the wireless AV system.

Next, a wireless AV system according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a configuration example of a wireless AV system according to this embodiment. FIG. 2 is a functional block diagram of a configuration example of a wireless center (a device on the tuner side) of the wireless AV system according to the present embodiment. FIG. 3 is a functional block diagram showing a configuration example of a TV main body (device on the monitor side) of the wireless AV system according to the present embodiment. 4 is a schematic diagram showing an example of a data structure for transmission and reception between the wireless center and the TV main body in the wireless AV system according to the present embodiment. Fig. 5 is a configuration example of a remote control device. 6 and 7 are display examples of GUI video in the wireless TV system according to the embodiment of the present invention. Fig. 8 is a flowchart showing a flow of an example of processing in the wireless AV system according to the embodiment of the present invention.

As shown in FIG. 1 , a wireless AV system 1 according to the present embodiment includes a wireless center 3 on the tuner side, and a TV main body (television main body) 5 having a liquid crystal monitor with a built-in battery.

In addition, as shown in FIG. 9, the TV main body is a part of a wireless structure with a built-in battery. Also equipped with a remote controller, it is possible to perform remote operations such as video recorders. In addition, the wireless center 3 is connected to antennas such as BS and U/V, AV equipment such as DVD players and video recorders, set-top boxes for CATV, and the like. Furthermore, video and/or audio data such as TV programs are wirelessly transmitted from the wireless center 3 to the TV main body 5 .

Next, the configuration of the wireless AV system 1 will be specifically described. As shown in Figure 1, the wireless center 3 has a video 1 input (with S terminal) terminal 7a, a video 2 input (decoder input) terminal 7b, a video 3 input (monitor/BS output dual purpose) terminal 7c, AC power supply terminal 11a and Car-DC terminal 11b, BS antenna 15a, UHF/VHF antenna 15b, and diversity antenna 15c. On the other hand, the TV main body 5 has a video 4 input (TV output) terminal 21, an AC power supply terminal 23a, and a Car-DC terminal 23b.

The wireless center 3 and the TV main body 5 can transmit and receive data with each other using, for example, a wireless method of the IEEE802.11b standard. From the wireless center 3 to the TV main body 5, the MPEG2 information flow is sent wirelessly, and at the same time, other command data and the like are transmitted between the two through two-way communication.

Next, a configuration example of the wireless center 3 will be described with reference to FIG. 2 . The description of the constituent elements explained in FIG. 1 is omitted. As shown in FIG. 2 , the wireless center 3 has a wireless center microcomputer 41 for overall control of the wireless center 3 , a first AV selector 43 , and an SS (Spread Spectrum: spread spectrum) transceiver unit 45 . Video 1 input (external input 1) terminal 7a, video 2 input (external input 2) terminal 7b, video 3 input (external input 3) terminal 7c are for receiving video signals and/or The audio signal is input to the terminal for the first AV selector.

In addition, the wireless center 3 has a BS tuner 33 connected to a BS antenna 15 for receiving BS (broadcasting satellite) broadcasts, and a U/V tuner connected to a UHF/VHF antenna for receiving TV broadcasts (analog broadcast or digital broadcast). Device 31. In addition, in the wireless center 3 , the channel selection process of the TV program is performed according to the channel selection command output from the wireless center microcomputer 41 . After the channel selection process, the signal output from the U/V tuner 31 or the BS tuner 33 is input to the video/audio demodulator 35 and demodulated into a video signal (first video data) and an audio signal. In addition, the demodulated audio signal is subjected to audio switching processing in the audio switching unit 37 according to the audio switching command 37 a output from the wireless center microcomputer 41 . Then, the demodulated video signal and the audio signal subjected to audio switching processing are input to the first AV selector 43 . Here, the first AV selector 43 performs source selection processing based on a source selection signal from the wireless center microcomputer 41 , and inputs the selected video signal and audio signal to the SS transceiver unit 45 .

In addition, the wireless center microcomputer 41 can read various data stored in the EEPROM (first storage means) 47 and write various data into the EEPROM. Also, the EEPROM 47 is an electrically rewritable nonvolatile memory that stores various data such as a control program of the wireless center microcomputer 41, communication control data, and a transmission channel change program.

The SS transceiver unit 45 has an A/D converter 51, an MPEG2 encoder 53, a first SS wireless transceiver engine 55, and a first SS-CPU (transmission means) 57 for controlling these components. The video signal and the sound signal that are output from the 1st AV selector 43 are carried out A/D conversion by A/D converter 51, utilize for example MPEG2 coder 53 to be encoded as MPEG2 form, according to the TV order (transmitting and receiving) that wireless center microcomputer 41 comes instruction) 57a, encoded in MPEG2 format. Then, the coded data is transmitted to the TV main body 5 side by the first SS wireless transceiver engine 55 under the control of the first SS-CPU 57 . In addition, the first SS wireless transmission/reception engine 55 performs two-way communication of various commands (data) with the TV main body 5 under the control of the first SS-CPU 57 .

Next, the configuration of the TV main body 5 will be described with reference to FIG. 3 . As shown in the figure, the TV main body 5 has a TV microcomputer 66, an SS transceiver unit 61, a second AV selector 67, a TV monitor (liquid crystal display, display unit) 71, and accepts input from the remote control device (FIG. 5). The light-receiving part 75 of the remote controller. The SS transmission and reception unit 61 has a second SS wireless transmission and reception unit 77, an MPEG2 decoder 81, a D/A converter 83, and a second SS-CPU 85 that controls these components. Also, the TV main body 5 is compatible with battery driving, and has a battery 87b and a battery charging microcomputer 87a corresponding thereto.

Here, the TV microcomputer 66 can read various data stored in the EEPROM (second memory, storage unit) 65 and write various data into the EEPROM memory 65 . Also, the EEPROM memory 65 is an electrically non-rewritable nonvolatile memory that stores various data such as a control program of the TV main body 5, communication control data, and a transmission channel change program.

Sent from the wireless center 3 side, coded as stream (story-ming) information (the above coded data) in the MPEG2 format, according to the second SS-CPU (receiving means) that receives the TV command (transmission and reception command) 71 from the TV microcomputer 66 The instruction of 85 is received by the second SS wireless transceiver engine 77 in the SS transceiver unit 61, decoded by the MPEG2 decoder 81, and D/A converted by the D/A converter 83. Furthermore, the video signal and the audio signal for D/A converted output are sent to the second AV selector 67 . Then, the 2nd AV selector 67 selects the video signal and the sound signal according to the source selection instruction 67a from the TV microcomputer 66 or the video signal and the sound signal from the video 4 input terminal (external input 4) 21 (such as external devices such as video recorders) incoming video signal, etc.). Here, the selected video signal (first video data) and audio signal are sent to the TV monitor 71 through the OSD synthesis unit 93a. In this way, a video based on the video signal selected by the 2AV selector (first video generation means) 67 is displayed on the TV monitor 71 . In addition, the video of the TV broadcast received by the wireless center 3 is displayed on the TV monitor 71 below. The video of the TV broadcast mentioned here is not only the TV video of the terrestrial analog broadcast and the terrestrial digital broadcast, but Videos of satellite broadcasting, data broadcasting, CATV broadcasting, etc. are also included. In addition, the video (first video) displayed on the TV monitor 71 is not limited to the video for television broadcasting, and may be a reproduced video from a video recorder or a DVD recorder.

In addition, the TV main body 5 in this embodiment has an OSD function. Next, the structure for realizing the OSD function will be described. In addition, the so-called OSD function of this embodiment is to superimpose and display a video (hereinafter referred to as "OSD video") different from the video on a part of the video displayed on the TV monitor 71. Function.

In addition, the so-called OSD video (second video) in this embodiment is a video generated based on information related to the wireless center 3 and the TV monitor 71, and may show the setting status of the wireless center 3 or the TV monitor 71, for example. , the video showing the number of the channel that can be received, the GUI video for operating the wireless center 3 or the TV monitor 71, and the data other than the video signal for TV broadcast received by the wireless center 3 are Based on the video (eg EPG).

In addition, when the user causes the GUI video to be displayed on the OSD on the TV monitor 71, he can switch the selected channel, adjust the volume, adjust the brightness of the displayed video, set the timing, etc. through the GUI video. operate. In addition, the user can also operate the control device 200 of the remote controller (refer to FIG. 5 ) to select, determine, and cancel various control commands displayed in the GUI above, or operate the controller installed on the TV main body 5. (not shown) perform the actions.

In this embodiment, once the user inputs an OSD display instruction to the TV main body 5 by operating the control device 200 of the remote controller, the TV microcomputer (second video image generating means) 66 generates an image corresponding to the display data based on the storage data stored in the EEPROM 65. The corresponding OSD video data (second video data) is indicated and output to the OSD synthesis unit 93a (see FIG. 10 ). Then, the OSD synthesizing unit (video superimposing means) 93 a performs a process of superimposing the OSD video on the television broadcast video displayed on the TV monitor 71 . The OSD synthesis unit 93a will be described below. The OSD synthesis unit 93 a includes a synchronization signal separation unit 193 and a switch 194 as shown in FIG. 10 . The switch 194 is switched according to a timing control signal input from the TV microcomputer 66 so as to connect or disconnect the synchronizing signal separating unit 193 and the TV monitor 71 , and between the TV microcomputer 66 and the TV monitor 71 . The synchronization signal separation unit 193 is a circuit block that separates the video synchronization signal from the video signal sent from the second AV selector 67 , outputs the video signal to the switch 194 , and outputs the video synchronization signal to the TV microcomputer 66 .

In the above configuration, first, the synchronous signal separation unit 193 separates the video synchronous signal from the input video signal, sends the video signal to the switch 194 , and simultaneously sends the video synchronous signal to the TV microcomputer 66 .

Here, when the user inputs an OSD display instruction, the TV microcomputer 66 generates corresponding OSD video data according to the instruction, and outputs it to the OSD synthesis unit 93a. Then, the TV microcomputer 66 outputs a timing control signal indicating the timing by switching the switch 194 based on the video synchronization signal from the synchronization signal separation unit 193 , and sends the timing control signal to the switch 194 .

Then, the switch 194 is switched according to the timing control signal to connect or disconnect the synchronizing signal separating unit 193 and the TV monitor 71 , and the TV microcomputer 66 and the TV monitor 71 . With this, once an OSD display instruction from the user is input to the TV main body 5, the OSD video data is sent from the TV microcomputer 66 to the TV monitor 71, and the OSD video is superimposed on the TV broadcast displayed on the TV monitor 71. on the video.

That is, the OSD video data output from the TV microcomputer 66 is input to the OSD synthesis unit 93 located between the second AV selector 67 and the TV monitor 71 . The TV microcomputer 66 receives commands input by, for example, the input keys of the remote control device (see FIG. 5 ) described later at the remote control light receiving unit 75 , and performs OSD display on the TV monitor 71 based on the received commands.

Next, data received and transmitted between the wireless center 3 and the TV main body 5 will be described in detail. As shown in Figure 4, in the wireless AV system of the present embodiment, the transmission and reception data 131 between the wireless center 3 side and the TV main body 5 side is transferred between the first SS wireless transmission and reception engine 55 and the second SS wireless transmission and reception engine 55. Between 77 and 77, the transmission and reception process is performed at every fixed cycle defined by the isocycle (isocycle) 132. The structure of the transmission/reception packet includes an R packet 133 transmitted from the wireless center 3 as R (right) to the TV main body 5 as L (left), a gap 134, and an R packet 134 transmitted from the TV body 5 as L (left) through the gap 134. The L data packet 135 sent by the main body 5 to the wireless center 3 which is R (right).

The R packet 133 includes a part using a full-wavelength (long) preamplifier (1 Mbps) and other data (11 MHz). The part using a full-wavelength (long) preamplifier (1 Mbps) contains sync data 41 and PHY header data 143 and has a time length of 192 microseconds. On the other hand, the other data portion has an MCA header 145 , control data (CB) 147 , status command data 151 composed of asynchronous data, and synchronous data 153 . The status command data 151 is data including a status command transmitted from the wireless center 3 to the TV main body 5 side. The synchronization data 153 is AV stream data of MPEG2.

Following the R packet 133, a gap portion (GAP) 134 of 129 microseconds is provided, followed by an L packet 135 transmitted from the TV main body 5 side to the wireless center 3. Like the R packet 133, the L packet 135 includes parts 161 and 163 using a full-wavelength (long) preamplifier (1 Mbps), a MAC header 165 as another data part (11 MHz), control data (リトライタグ) 167, and Asynchronous data section 171 . The asynchronous data portion 171 is data including a status command transmitted from the TV main body 5 side to the wireless center 3 side. As described below, the command data selected and determined on the GUI displayed on the TV monitor 71 is included in the asynchronous data unit 171 and transmitted from the TV main body 5 side to the wireless center 3 side. On the side of the wireless center 3, the indicated command is executed based on the above-mentioned command data. The data explained above are sent as a whole at a cycle of 3.6 milliseconds.

FIG. 5 shows the configuration of a remote controller control device 200 that functions as an input unit and performs a stand operation by the remote controller light receiving unit 75 on the TV main body 5 side. As shown in FIG. 5, the remote control device 200 has a channel number input unit 201 for inputting a channel number, a menu display button 202, selection/determination buttons 203a·203b, up and down channel selection buttons 205, a power switch 207, and (external) input. Toggle button 208 . 6 and 7 show examples of OSD displayed on the TV monitor 71 up and down, and are examples of OSD images displayed on the TV monitor 71 by the TV microcomputer 66 in response to input from the remote control device 200 .

First, as shown in FIG. 8 , when the menu button 202 is pressed using the remote control device 200 ( S1 ), an image such as that shown in FIG. 6( a ) is displayed on the TV monitor 71 ( S2 ). In this menu display, for example, video adjustment, energy saving setting, main body setting, channel setting, and timer setting are displayed. Here, when channel setting is selected (S3), the display shown in FIG. 6(b) is performed (S4). As shown in FIG. 6(b), in the menu display related to channel setting, for example, automatic preset, menu memory, region number, and execution are displayed. Here, once the automatic preset (S5) is selected, a menu display as shown in Figure 6(c) will appear. Here, by pressing the decision button 203b, it is decided to perform the preset process, and the up and down selection button 203a is used to display the menu as shown in FIG. As shown in FIG. 7( a ), the execution of the selection is confirmed by pressing the decision button 203 b to execute the automatic preset processing ( S7 ). The above processing is performed on the TV main body 5 side. Use the above steps to determine the processing (automatic preset processing) to be executed by the wireless center 3 side, and for this reason it is converted into an instruction to the wireless center 3 side (S7), and is included in the asynchronous data shown in FIG. 4 The unit 171 transmits from the TV main body 5 side to the wireless center 3 side (S8).

On the side of the wireless center 3, once the instruction representing the meaning of performing the above-mentioned automatic presetting is received, as shown in Fig. Automatic pre-set processing finishes (S9), just relevant information (channel confirmation information) is sent to TV main body 5 side (S10), as shown in Fig. 7 (c), on TV monitor 71 according to and direct channel selection The list 213 of stored channel numbers is displayed from the upper left in order of the channel selection numbers corresponding to the buttons. In the example shown in FIG. 7(c), channel numbers 1, 3, 4, 6, 8, 10, and 12 are stored corresponding to the same channel selection numbers, and are stored from 38, 42, and 46 in channels 13 to 62. Number the empty channel. In the remote controller, the position of channel 1 corresponds to channel 1, the position of channel 2 corresponds to channel 14, the position of channel 3 corresponds to channel 3, the position of channel 4 corresponds to channel 4, and the position of channel 5 corresponds to channel 38. correspond to each other. For example, the information corresponding to each other is sent to the TV main body 5 side as channel identification information, and stored in the EPPROM 65 shown in FIG. 3 .

In the wireless AV system 1 of this embodiment, the TV microcomputer 66 installed on the TV main body 5 side generates the OSD video displayed on the TV monitor 71, since all selections related to processing can be performed on the TV main body 5. By doing this side by side, the conventional problem of poor display response caused by converting video signals including OSD video into AV streams can be eliminated.

As mentioned above, although this invention was demonstrated using embodiment, it cannot be overemphasized that this invention is not limited to these examples, and various deformation|transformation is possible. In addition, although the system for receiving television broadcasting has been described above as an example, it can also be used for other AV systems. In addition, the above description was based on an example of use in wireless AV equipment, but of course it can also be used in AV equipment networked by wire or the like. In addition, above, the video squelch processing has been described as an example in relation to switching processing, but other video processing may also be performed.

Implementation form 2

In the present embodiment, automatic preset processing which is different from the automatic preset processing described in Embodiment 1 will be described. In the following description, for convenience, members having substantially the same functions as those described in the first embodiment are given the same reference numerals and their descriptions are omitted. In addition, various features described in Embodiment 1 can also be used in combination in this embodiment.

FIG. 11 is a flowchart showing the procedure of processing executed on the TV main body 5 side in the automatic preset processing in this embodiment.

First, on the video of the TV program displayed on the TV monitor 71, the OSD display of the video for menu selection as shown in FIG. 6(a) is performed. In S11 shown in FIG. 11 , the user operates the remote control device 200, and once the channel setting menu is selected (S11), the TV microcomputer 66 reads out the video data for channel setting from the EEPROM 65, and outputs it to the OSD for synthesis. part 93a (S12). With this, the OSD display of the video for channel setting shown in FIG. 6( b ) is performed on the TV monitor 71 ( S13 ).

Here, once the user selects the automatic preset processing among the items displayed in the video display for channel setting (YES in S14), the TV microcomputer 66 outputs an instruction indicating that the automatic preset processing is executed (S15) . Also, when other processing is selected (NO in S14), other processing is executed (S16).

Then, at S15, the command output from the TV microcomputer 66 is sent to the SS transceiver unit 61 (S17). Also, the SS transceiver unit 61 receiving the command transmits the command to the wireless center 3 through the second SS wireless transceiver unit 7 under the control of the second SS-CPU 85 (S18). With this, the processing is transferred to the wireless center 3 side (S19).

Next, the processing executed by the wireless center 3 that receives the above command will be described with reference to FIG. 12 . FIG. 12 shows the details of the processing of S19 in FIG. 11 , and is a flowchart of the procedure of processing executed on the wireless center 3 side.

Once the command shown in S18 (see FIG. 11 ) is transmitted from the TV main body 5, the SS transmission and reception unit 45 of the wireless center 3 receives the command (S31). Then, the received command is input to the microcomputer 41 of the wireless center under the control of the first SS-CPU 57 (S32).

Then, the microcomputer 41 of the wireless center that received the command analyzes the content indicated by the command (S33). Here, when the content of the command is an instruction for automatic preset operation (YES in S34), a control signal for channel search is output to the BS tuner 33 and the U/V tuner (S35). In addition, when the content of the command in S33 is another instruction (NO in S34), other processing is performed (S36).

Then, the two tuners 31 and 33 that have received the channel search control signal perform channel search, and output channel specifying information indicating receivable channels and unreceivable channels to the wireless center microcomputer 41 (S37).

Then, the wireless center microcomputer 41 that has received the channel specifying information transmits the channel specifying information to the SS transceiver unit 45 . Then, the SS transceiver unit 45 transmits channel identification information to the TV main body 5 through the first SS wireless transceiver engine 55 under the control of the first SS-CPU 57 (S38).

Next, the processing on the TV main body 5 side after the above-mentioned channel specifying information is transmitted from the wireless center 3 will be described with reference to FIG. 11 .

Once the above-mentioned channel specifying information is transmitted from the wireless center 3, the channel specifying information is received by the second SS wireless transceiver engine 77 under the control of the second SS-CPU 85 (S20). Then, the received channel specification information is stored in the EEPROM 65 under the control of the TV microcomputer 66 (S21).

As described above, in the wireless AV system 1 of the present embodiment, channel specifying information (related data) indicating receivable channels and unreceivable channels is stored in the EEPROM 65 of the TV main body 5 . Therefore, in the case of superimposing and displaying the OSD video of the receivable channel shown in FIG. The stored channel specifying information generates OSD video data, and the OSD synthesis unit 93 a superimposes the OSD video on the video of the TV program displayed on the TV monitor 71 and displays it.

That is, according to this embodiment, when displaying an OSD video based on data from the wireless center 3 , the OSD video is generated not on the wireless center 3 side but on the TV main body 5 side. Therefore, compared with the conventional structure in which such an OSD video is generated on the side of the wireless center 3, it is not necessary to encode and decode the data for superimposing the OSD video on the video of the TV program, and it is possible to improve the reliability of the OSD display. The response speed of the user's instruction input.

Especially in the case of generating OSD video data based on data stored in EEPROM 65 as in the present embodiment, OSD display can be performed immediately when there is an OSD video display instruction input by the user.

Implementation form 3

In this embodiment, the process of OSD-displaying the EPG video (OSD video) as GUI on the TV monitor 71 will be described.

In the following description, for the convenience of description, members having substantially the same functions as those described in Embodiment 1 are given the same reference numerals, and their descriptions are omitted. In addition, various features described in Embodiment 1 can also be used in combination in this embodiment.

In addition, in the wireless AV system of this embodiment, the digital broadcast terrestrial wave is received from the U/V tuner 31, and the EPG data is added to the digital broadcast terrestrial wave. And wireless center 3 forms the following structure, promptly once this EPG data is received, just this EPG data is sent to TV main body 5, and in this main body 5, TV microcomputer 66 can send the EPG data ( Relevant data) are stored in EEPROM65.

Also, in the case where the wireless center 3 is configured to receive satellite digital broadcast waves from the BS tuner 33, the wireless center 3 may also be configured to transmit the EPG data added to the broadcast waves to the TV main body 3. structure.

FIG. 13 is a flowchart showing the procedure for performing OSD display of EPG video. First, when the user operates the remote control device 200 and inputs an EPG display instruction (S41), the TV microcomputer 66 reads template data of the EPG video from the EEPROM 65 (S42). Note that this so-called template data is stereotyped data necessary to make the EPG video function as a GUI.

Also, the TV microcomputer 66 judges whether EPG data is stored in the EEPROM 65 (S43). Here, when the EPG data is already stored in the EEPROM 65 (YES in S43), the TV microcomputer 66 reads out the EPG data (S44). Also, when the EPG data is not stored in EEPROM 65 (NO in S43), TV microcomputer 66 transmits a command indicating acquisition of EPG data to wireless center 3 via SS transmission and reception unit 61 (S45). Accordingly, on the side of the wireless center 3 , EPG data is obtained from the digital terrestrial wave received by the wireless center microcomputer 41 , and the EPG data is transmitted to the TV main body 5 . With this, the TV microcomputer 66 can acquire the EPG data from the wireless center 3 (S46).

The TV microcomputer 66 which acquired the EPG data in S44 or S46 embeds the content information (program name, actor name, etc.) of each program represented by the EPG data into the template data to generate EPG video data (S47). Then, the data of the EPG video is sent from the TV microcomputer 66 to the OSD synthesis unit 93a. With this, the EPG video is displayed on the OSD on the TV video displayed on the TV monitor 41 (S48). Here, reference numeral 300 in FIG. 14(a) denotes an example of an EPG video. In this figure, each frame of the EPG video 300 is shown graphically for convenience, but actually shows the content information of the program.

As described above, in the wireless AV system 1 of this embodiment, on the TV main body 5 side, the TV microcomputer 66 reads the EPG data from the EEPROM 65, or obtains the EPG data from the wireless center 3, and generates an EPG video based on the EPG data. image processing. Furthermore, the OSD compositing unit 93 a performs processing to superimpose the EPG video on the television broadcast video displayed on the TV monitor 71 .

That is, according to the present embodiment, the process of generating the EPG video and superimposing it on the TV broadcast video is not performed on the wireless center 3 side, but is performed on the TV main body 5 side. Therefore, compared with the existing structure in which the process of generating the EPG video and superimposing it on the video of the TV broadcast is performed on the side of the wireless center 3, there is no need to overlay the video of the EPG video on the video of the TV broadcast. The superimposed video data is encoded and decoded, and the OSD display processing of the EPG video can improve the response speed to the user's instruction input.

In addition, when the TV microcomputer 66 generates EPG video data based on the EPG data and template data stored in the EEPROM 65 (S44, S47), when performing OSD display on the EPG video, once between the TV main body 5 and the wireless center 3 If the communication state deteriorates, the video of the TV program displayed on the TV monitor 71 will be degraded, but the EPG video displayed on the OSD will not be degraded. This is because the TV body 5 generates EPG video data based on the EPG data transmitted from the wireless center 3 and stored in the EEPROM, and the display of the EPG video is not affected by whether the communication status is good or not.

In addition, when the TV microcomputer 66 generates EPG video data based on the template data stored in the EEPROM 65 and the EPG data obtained from the wireless center 3 without passing through the EEPROM 65 (S46, S47), when performing OSD display on the EPG video, Once the communication status between the TV main body 5 and the wireless center 3 deteriorates, in the EPG video displayed on the OSD, although a part of the place indicating the content information of the program is degraded, the stereotyped part of the EPG video does not deteriorate. This is because even if the communication status deteriorates, the fixed position of the EPG video is generated based on the template data stored in the EEPROM 65, and the display of the fixed position is not affected by whether the communication status is good or not.

In addition, it demonstrates concretely below using drawings. If the conventional structure in which the generation process of the EPG video is performed on the side of the wireless center 3 and the processing of superimposing the EPG video on the video of the TV program is adopted, once the communication state between the TV main body 5 and the wireless center 3 deteriorates, Then, as shown in FIG. 14( b ), all video images displayed on the TV monitor 71 will be degraded.

On the contrary, when the TV main body 5 generates EPG video data on the side of the TV main body 5 based on the template data stored in the EEPROM 65 and the EPG data obtained from the wireless center not through the EEPROM 65, once the TV main body 5 and the wireless center 3 communicate The state deteriorates, as shown in FIG. 14( c), the video images such as TV programs displayed on the TV monitor 71 are degraded, but the stereotypes of the EPG video are not degraded. However, since the acquisition of EPG data is affected by whether the communication status is good or not, the location (reference sign b in the figure) showing the content information of the program generated from the EPG data is partially lost.

In addition, in each of the above-mentioned embodiments, the second AV selector 67 for generating the TV program displayed on the TV monitor 71, and the OSD synthesis for superimposing the OSD video on the video of the TV program displayed on the TV monitor 71 The section 93a has been described taking the case of hardware implementation as an example, but it is not limited thereto. The second AV selector 67 and the OSD synthesizing unit 93a may also be realized by a combination of hardware for realizing the above functions and hardware (computer) for executing the programs.

In addition, the wireless AV system of the present embodiment may also be a system comprising: a display unit for displaying information based on broadcast information; displaying a GUI on the display unit; The GUI control unit of the control data corresponding to the control item, the AV output device of the first transceiver unit that transmits the control data and receives the broadcast information at the same time, and the tuner unit that has the channel selection of the broadcast information, and the first transmission and reception unit. 1. The transmitting unit is connected wirelessly, and transmits the broadcast information selected by the tuner unit to the first transmitting and receiving unit, and simultaneously receives the second transmitting and receiving of the control data from the first transmitting and receiving unit. Part of the wireless center.

In addition, the wireless AV system of the present embodiment may have a configuration including, in addition to the above-mentioned configuration, a display unit for displaying broadcast information, and a GUI for displaying a GUI on the display unit. An OSD output, a GUI control unit that generates control data corresponding to a control item selected based on the displayed GUI, an AV output device that transmits the control data, and a first transceiver unit that simultaneously receives the broadcast information, and an AV output device that performs all the broadcast information. The tuner unit for channel selection of the broadcast information is wirelessly associated with the first transmission unit, and transmits the broadcast information obtained by channel selection by the tuner unit to the first transceiver unit, and at the same time transmits the broadcast information from the first transmission unit The first transceiver unit is a wireless center of the second transceiver unit that receives the control data.

In addition, the wireless AV system according to this embodiment may include a configuration in which the AV output device has a decoder for decoding an operation command related to the GUI, in addition to the configuration described above.

In addition, the wireless AV system of this embodiment may adopt a configuration in which the AV output device correlates with control data input specifying means for specifying the control data based on the GUI displayed on the display unit, in addition to the above configuration.

In addition, the AV output device of this embodiment may be an AV output device associated with a wireless center having a tuner for selecting a channel of broadcast information and a second transceiver unit for transmitting broadcast information obtained by using the tuner. The device further has a configuration as follows, that is, it has a display unit for displaying based on the broadcast information, causes the display unit to display a GUI, and generates a GUI control unit that generates control data corresponding to a control item selected based on the displayed GUI. and a first transceiver unit that transmits the control data to the wireless center and simultaneously receives the broadcast information.

In addition, the AV output device of the present invention can also be an AV output device that establishes a correlation relationship with a wireless center with a tuner that selects a channel of broadcast information by wireless, in addition to the above-mentioned structure, and has a display unit and a device for generating the display. The OSD generation section provides an OSD for the GUI.

In addition, in the AV output device of the present embodiment, in addition to the above configuration, the OSD generation unit may be configured to add OSD data to decoded data of the encoded stream video from the wireless center.

In addition, the wireless center of this embodiment may also be configured as follows, that is, it has a display unit for displaying based on the broadcast information, causes the display unit to display a GUI, and generates and selects based on the displayed GUI. The GUI control unit that controls the control data corresponding to the item is associated with the AV output device of the first transceiver unit that transmits the control data and receives the broadcast information, and has a tuner unit that selects the channel of the broadcast information, and a second transmission and reception unit that transmits broadcast information tuned by the tuner unit to the AV output device and receives the control data.

In addition, the GUI providing method of the present embodiment may adopt a method in which a correlation is obtained wirelessly with a wireless center having a tuner unit for channel selection of broadcast information, and an AV system having a display unit is used. The GUI providing method of an output device comprises a first step of decoding the input content corresponding to an input for operating the GUI, a second step of generating an OSD related to the decoded input content, and using the generated OSD to display The third step of displaying the GUI on the display unit is described above.

In addition, the GUI providing method of this embodiment may include, in addition to the above-mentioned song steps, the steps of selecting and determining control data according to the displayed GUI, receiving the broadcast information, and at the same time converting the determined The step of sending control data to said wireless center.

According to the above-mentioned wireless AV system, it is possible to generate a GUI displayed on the display unit on the AV output device side, and perform operations related to the GUI on the AV output device side.

In addition, with the above-mentioned wireless AV system, the OSD output unit installed on the AV output side generates the GUI displayed on the liquid crystal monitor, and the selection of related processing is all performed on the monitor side, so it is possible to eliminate the problem of including The problem of poor display response caused by converting the video signal of GUI video to AV stream.

Furthermore, according to the wireless AV system described above, it is possible to generate a GUI to be displayed on the display unit on the AV output device side, and to perform operations on the GUI on the AV output device side.

The wireless terminal of the present invention is a wireless terminal that directly transmits and receives data with the basic equipment, and may also have the following structure: receiving the first video data from the basic equipment and communicating with the basic equipment and/or Receiving means for related data related to a wireless terminal, first video generating means for generating a first video based on the first video data, second video generating means for generating a second video based on the related data, and A video superimposition means for superimposing the first video on the second video and displaying the superimposed video on a display unit.

In addition, the wireless terminal control method of the present invention is a control method for a wireless terminal that performs data transmission and reception with basic equipment, and may also include: receiving the first video data from the basic equipment and communicating with the basic equipment and/or Steps of related data related to the wireless terminal, steps of generating a first video based on the first video data, steps of generating a second video based on the related data, superimposing the second video on the first video , the step of displaying the superimposed video on the display unit.

With the above configuration, the first video data is received from the base device, and the first video is generated based on the first video data, while the related data is received from the base device, and the second video is generated based on the related data. Furthermore, the second video is superimposed on the first video, and the superimposed video is displayed on the display unit. That is, according to the above configuration, the wireless terminal executes the generation process of the second video and the superimposition process of the first video and the second video. Therefore, according to the above structure, compared with the existing structure in which these processes are performed on the infrastructure side, since it is not necessary to encode and decode the superimposed video data, for superimposing the first video and the second video, The video display can improve the response speed to the user's instruction input.

In addition, in the said 1st video, the video of the television broadcast received by the said infrastructure device, and the video reproduced by a video recorder or a DVD (Digital Versatile Disc) recorder are included. In addition, the video for television broadcasting includes not only terrestrial analog broadcasting, terrestrial digital broadcasting, and television video, but also satellite broadcasting video, data broadcasting video, and video output from a set-top box that receives CATV broadcasting. Video (video broadcast by CATV). In addition, the above-mentioned relevant data includes, for example, data indicating the setting status of the base device and/or the wireless terminal, data related to television broadcast received by the base device (for example, EPG data), and the like. In addition, the above-mentioned second video includes a GUI video for operating the above-mentioned infrastructure device and/or wireless terminal, a video showing the setting status of the above-mentioned infrastructure device and/or wireless terminal, and an EPG (Electronic Program Guide) video. wait.

In addition to the above configuration, the wireless terminal of the present invention further includes a storage unit for storing the relevant data received by the receiving means, and the second video generation means may have a second video that can generate a second video based on the relevant data stored in the storage unit. like structure.

With the above configuration, the related data received from the base device is stored in the storage unit, so that when the user receives an instruction input to display the above-mentioned superimposed video, if the related data is already stored in the storage unit, the second video can be generated immediately. video.

In addition, if the communication state between the wireless terminal and the infrastructure device deteriorates, if the relevant data is already stored in the storage unit at the time when the user receives an instruction input to display the superimposed video, the deterioration of the communication state can be avoided. The second video is generated without degrading the second video, and is displayed on the display unit without degrading the second video.

In the wireless terminal of the present invention, in addition to the above configuration, the second video generation means may be configured to add the correlation data to the template data held by the wireless terminal to generate the second video.

According to the above-mentioned structure, since the second video is generated by adding the above-mentioned related data to the template data (standard data), there are stereotyped places and non-stereotyped places in the second video. Here, the above-mentioned template data is data owned by the wireless terminal, so even if the communication state between the wireless terminal and the infrastructure equipment deteriorates, the stereotyped position of the second video of the above-mentioned overlapping video is not affected by the deterioration of the communication state.

On the contrary, when the generation process of the second video and the superimposition process of the first video and the second video are detected on the infrastructure side as in the past, once the communication status between the wireless terminal and the infrastructure deteriorates , including the stereotype of the second video, the entire overlapping image will be degraded.

In the wireless terminal of the present invention, in addition to the above configuration, the first video may be a television broadcast video, and the related data may be EPG data.

With the above configuration, the second video data is generated based on the EPG data, and the second video data is superimposed on the video of the television broadcast and displayed. Therefore, the user can enjoy TV programs while checking the program guide. In addition, video for television broadcasting includes not only television video of terrestrial analog broadcasting and terrestrial digital broadcasting, but also video of satellite broadcasting, video of data broadcasting, and video output from a set-top box receiving CATV broadcasting. Video (video broadcast by CATV).

The infrastructure device of the present invention includes transmission means for transmitting the first video data and the related data to the satellite terminal.

According to the above configuration, the generation process of the first video and the superimposition process of the first video and the second video are carried out in the satellite terminal. Therefore, compared with the structure in which these processes are performed on the infrastructure side, there is no need to encode and decode the data of the superimposed video. The user's instruction input can improve the response speed.

The wireless system of the present invention may be constituted by the above-mentioned wireless terminal, and infrastructure equipment including transmission means for transmitting the first video data and the related data to the wireless terminal.

According to the above configuration, the generation process of the second video and the superimposition process of the first video and the second video are performed in the wireless terminal. Therefore, compared with the configuration in which these processes are performed on the infrastructure side, it is not necessary to encode and decode the superimposed video data. The instruction input can improve the response speed.

In addition, the above-mentioned wireless terminal can also be realized by a computer. In this case, by making the computer function as the above-mentioned means, the computer-readable recording medium for recording the wireless terminal control program for realizing the above-mentioned wireless terminal by the computer is also included in the scope of the present invention.

The present invention is not limited to the above-mentioned embodiments, and various changes can be made within the range indicated by each item of the claims. Embodiments obtained by appropriately combining the various technical means disclosed in the above-mentioned embodiments are also included in the technical scope of the present invention.

The best form of implementing the present invention and even specific embodiments or examples are just to make the technical content of the present invention clearer. The present invention is not limited to such specific examples and should not be interpreted in a narrow sense. In the spirit and spirit of the present invention The present invention can be practiced with modifications within the scope of the claims described below.

Industrial Applicability

The wireless system of the present invention is suitable for wireless transmission of data and/or audio data, such as a home AV network system such as a display-separated wireless TV set, but it is not limited thereto, and the present invention can also be widely applied to portable phones/ Wireless communication devices such as PHS (Personal Handy-Phone System, registered trademark), portable information terminals (PDA (Personal Digital Assistants)), personal computer monitors with built-in TV reception functions, etc.

Claims (5)

1. wireless terminal, be and infrastructure device between carry out the wireless terminal of data transmitting and receiving, it is characterized in that, comprise

From infrastructure device receive the 1st video data and the related data relevant with infrastructure device and/or wireless terminal receiving system,

According to described the 1st video data generate the 1st video the 1st video generating apparatus,

According to described related data generate the 2nd video the 2nd video generating apparatus,

Overlapping the 2nd video on described the 1st video, with the video after overlapping be presented at display part the video overlapping device and

Store the rewritable nonvolatile memory of the described EPG data of described receiving system reception,

Described the 2nd video generating apparatus generates the 2nd video by the described EPG data to storing in the additional described nonvolatile memory of the template data of depositing in the described nonvolatile memory.

2. wireless terminal according to claim 1 is characterized in that,

Described the 1st video is the video of television broadcasting, and described related data is the EPG data.

3. an infrastructure device is characterized in that,

Comprise the dispensing device that sends described the 1st video data and described related data to claim 1 or 2 described wireless terminals.

4. a wireless system is characterized in that,

By claim 1 or 2 described wireless terminals and comprise the infrastructure device that sends the dispensing device of described the 1st video data and described related data to claim 1 or 2 described wireless terminals and constitute.

5. the control method of a wireless terminal, this wireless terminal and infrastructure device between carry out data transmitting and receiving, it is characterized in that, comprise following steps:

From infrastructure device receive the 1st video data and EPG data relevant with this video data step,

According to described the 1st video data generate the 1st video step,

According to described EPG data generate the 2nd video step,

Overlapping the 2nd video on described the 1st video, with the video after overlapping be presented at display part step and

To write the step of rewritable nonvolatile memory from the described EPG data that described infrastructure device receives,

The step that generates described the 2nd video generates the 2nd video by the described EPG data to storing in the additional described nonvolatile memory of the template data of depositing in the described nonvolatile memory.

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