WO2011145700A1 - 再生装置、表示装置、テレビジョン受像機、システム、認識方法、プログラム、及び、記録媒体 - Google Patents
再生装置、表示装置、テレビジョン受像機、システム、認識方法、プログラム、及び、記録媒体 Download PDFInfo
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- WO2011145700A1 WO2011145700A1 PCT/JP2011/061584 JP2011061584W WO2011145700A1 WO 2011145700 A1 WO2011145700 A1 WO 2011145700A1 JP 2011061584 W JP2011061584 W JP 2011061584W WO 2011145700 A1 WO2011145700 A1 WO 2011145700A1
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- video
- display device
- television
- mobile phone
- command
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Classifications
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- H04N5/63—Generation or supply of power specially adapted for television receivers
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- H—ELECTRICITY
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- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
- H04M1/72415—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories for remote control of appliances
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- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
- H04N21/41265—The peripheral being portable, e.g. PDAs or mobile phones having a remote control device for bidirectional communication between the remote control device and client device
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- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
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- H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present invention relates to a playback device that supplies a playback video to a display device that displays the video, and a display device such as a television receiver that displays the video supplied from such a playback device.
- the present invention also relates to a recognition method for recognizing the state of a display device in such a playback device.
- the present invention relates to a system including such a playback device, a program for operating a computer as such a playback device, and a recording medium on which such a program is recorded.
- a sink device and a source device connected via an HDMI cable can transmit and receive a CEC (Consumer Electronics Control) command to each other in addition to video data and audio data.
- CEC Consumer Electronics Control
- the CEC command transmitted / received between devices connected by the HDMI cable includes the logical address and / or physical address of the transmission source and / or transmission destination as arguments.
- Each device connected by the HDMI cable specifies the transmission source and / or transmission destination of the CEC command by the logical address and / or physical address included in the CEC command.
- the logical address is expressed by an integer from 0 to 14 indicating the device type (TV, recorder, player, tuner, audio, or any other). For example, the logical address “0” is allocated to the television, the logical address “1” is allocated to the first recorder, and the logical address “2” is allocated to the second recorder.
- Non-Patent Document 1 By using the CEC command, it is possible to provide the user with unprecedented convenience by controlling the source device from the sink device or controlling the sink device from the source device. For example, the input source of the sink device can be automatically switched to the source device that has started playing the content. Details of HDMI are described in Non-Patent Document 1.
- Patent Document 1 discloses two types of standby modes: a low power consumption mode in which power consumption is low but the return to the normal mode is slow, and a high speed start-up mode in which power consumption is large but the return to the normal mode is fast.
- a recording / playback apparatus is disclosed. While the recording / playback apparatus is in the standby mode, the power state of the television connected via the HDMI cable is periodically checked using a CEC command. When it is confirmed that the TV is turned on, the mode is shifted to the fast start-up mode, and when it is confirmed that the TV is not turned on, the mode is shifted to the low power consumption mode.
- Patent Document 2 Although not related to processing conforming to the HDMI standard, technologies for reducing power consumption of devices are disclosed in Patent Document 2 and Patent Document 3.
- Patent Document 2 discloses a computer system including a computer and a cover that can be opened and closed to cover the computer. This computer system is configured to stop the CPU when it is detected that the cover is closed while the CPU of the computer is operating.
- Patent Document 3 discloses an information processing apparatus that can take two states with different power consumption. This information processing device transitions to a low power consumption state when the no-input state continues for a certain period of time, and only when a specific key input is detected from a specific key and a key other than the specific key. Transition to a large state.
- the display device when the display device does not display the playback video supplied by the device itself, the display device does not display the playback video because the device cannot grasp it. In some cases, appropriate processing cannot be performed. For example, when the display device stops displaying the playback video supplied by the device itself, a process of stopping the supply of the playback video to the display device is performed in order to suppress waste of power in the device. I can't do it.
- the present invention has been made in view of the above problems, and a main object of the present invention is to provide a playback device that can recognize that the display device does not display the playback video supplied to the display device. It is to be realized.
- a playback device includes a video supply unit that supplies a reproduced video to a display device, and a case where the display device does not display the video supplied by the video supply unit.
- the display device returns (1) information indicating that no video is displayed when the video supplied by the video supply unit is not displayed (same as “information” described in claims). When the video supplied by the video supply unit is displayed, no information may be returned. (2) When the video supplied by the video supply unit is not displayed When the first information indicating that the video is not displayed (same as “information” described in the claims) is returned and the video supplied by the video supply unit is displayed, the video is displayed. 2nd information (information different from the 1st information) which shows that it may be may be returned.
- the playback device when the information is returned from the display device, the playback device according to the present invention recognizes that the video supplied by the playback device is not displayed by the display device. There is an effect that can be done.
- a recognition method is a recognition method in which a playback device that plays back video recognizes a state of the display device that displays the video, and the playback video is displayed on the display device. And an instruction step for instructing the display device to return information indicating that the image supplied in the video supply step is not displayed on the display device. It is characterized by including.
- the recognition method according to the present invention has the same effects as the playback device according to the present invention.
- the playback device can recognize that the display device does not display the playback video supplied to the display device.
- FIG. 1 shows a block diagram which shows the structure of the mobile telephone terminal which concerns on embodiment of this invention. It is a figure which shows the structure of the main controller and HDMI transmitter of a mobile telephone terminal, and the structure of the HDMI receiver with which the television (television receiver) shown in FIG. It is a figure which shows the structure of the system containing the mobile telephone terminal shown in FIG. 1, and the television shown in FIG. (A) shows a system in which a mobile phone terminal and a TV are connected by HDMI, and (b) shows a system in which a mobile phone terminal and a BD (Blu-ray Disc) player are connected by HDMI. Is shown. It is a figure which shows the other connection aspect of a television and a mobile telephone terminal.
- BD Blu-ray Disc
- FIG. 6 is a functional block diagram illustrating functions of the television (television receiver) illustrated in FIG. 5.
- FIG. 6 is a diagram showing the structure and contents of a management table used by the television shown in FIG. 5, and (a) shows an example of the contents of the management table before the mobile phone terminal is HDMI-connected to the television.
- FIG. 6 is a flowchart illustrating an example of management table update processing executed by the television when the mobile phone terminal is HDMI-connected to the television shown in FIG. 5.
- FIG. 6 is a flowchart illustrating an operation performed by a mobile phone terminal connected to the television by HDMI when a user operation for switching an input source of a video to be displayed is performed on the television illustrated in FIG. 5.
- FIG. 11 is a sequence diagram including operations performed between the mobile phone terminal, the BD player, and the television when the video input source is switched as shown in FIG. 10 in the television shown in FIG. 5.
- FIG. 6 is a block diagram showing a configuration of a television that is different from the television shown in FIG. 5 and has a two-screen display function. 12 schematically shows that one of the input sources of the video displayed on the two screens in the television shown in FIG. 12 is switched from the BD player to the tuner of the television, and the other of the input sources is switched from the mobile phone terminal to the BD player.
- FIG. 14 is a sequence diagram including operations performed between the mobile phone terminal, the BD player, and the television when the video input source is switched as shown in FIG. 13 in the television shown in FIG. 12.
- 10 is a flowchart showing a process of charging a mobile phone terminal, which is performed in cooperation between the mobile phone terminal and the TV when video supplied from the mobile phone terminal to the TV no longer appears on the TV screen.
- It is a block diagram which shows one implementation example of the system which can operate a television and a source device from a portable information terminal. It is a figure which shows the structural example of the display screen displayed on the touchscreen of a portable information terminal.
- (A) is a display screen for operating the television
- (b) is a display screen for operating the source device.
- a television receiver (hereinafter referred to as “TV”) is illustrated as a sink device (output device), and a mobile phone terminal is illustrated as a source device.
- TV television receiver
- a mobile phone terminal is not limited to this. It is not something.
- a mobile phone terminal is only an example of a device that functions as a source device, and can be replaced with other devices such as a PDA (Personal Digital Assistant), a portable digital audio player, and a car navigation system (mobile terminal device). It is.
- FIG. 3 is a diagram illustrating a configuration of the system 10.
- the system 10 includes a television 1 having an HDMI input terminal 11 and a mobile phone terminal 2 having an HDMI output terminal 21, and the HDMI input terminal 11 of the television 1 It is configured by connecting the HDMI output terminal 21 of the mobile phone terminal 2 with the HDMI cable 3.
- the mobile phone terminal 2 functions as a source device that supplies content to the television 1
- the television 1 functions as a sink device that outputs content supplied from the mobile phone terminal 2.
- the content supplied from the mobile phone terminal 2 and output from the television 1 is assumed to be either one or both of video and audio.
- the system 10 includes a television 1 having N (in this case, two) HDMI input terminals 11a and 11b and a total of N including at least one mobile phone terminal 2.
- the number of HDMI devices may be less than or equal to one (here, one mobile phone terminal 2 and one BD player 30).
- the HDMI input terminals 11a and 11b included in the television 1 are connected to the mobile phone terminal 2 and the BD player 30 via the HDMI cables 3a and 3b, respectively.
- the mobile phone terminal 2 is connected to one end of the HDMI cable 3a by placing the mobile phone terminal 2 on the base 4 (such as a charging base 4 to be described later). HDMI connection between the mobile phone 1 and the mobile phone terminal 2 is established.
- the charging stand 4 shown in FIG. 4A includes an HDMI input terminal 41 and a power supply terminal 42.
- the HDMI output terminal 21 and the power supply terminal 22 of the mobile phone terminal 2 are connected. These are connected to the HDMI input terminal 41 and the power supply terminal 42 of the charging stand 4, respectively.
- An HDMI cable 43 is connected to the HDMI input terminal 41 of the charging stand 4.
- a power cable 44 is connected to the power terminal 42 of the charging stand 4.
- the charging stand 4 shown in FIG. 4 (b) includes an HDMI input terminal 41 and a power terminal 42.
- the HDMI output terminal 21 and the power supply terminal 22 of the terminal 2 are connected to the HDMI input terminal 41 and the power supply terminal 42 of the charging stand 4, respectively.
- the other end of the HDMI cable 43 whose one end is connected to the HDMI input terminal 41 is connected to the HDMI input terminal 11 of the television 1, the television 1 and the mobile phone terminal 2 can be HDMI-connected.
- the other end of the power cable 44 having one end connected to the power terminal 42 is connected to the AC adapter 12 built in the television 1, power can be supplied to the mobile phone terminal 2.
- the HDMI cable 43 and the power cable 44 may be integrated so that HDMI connection and power supply can be performed simultaneously with a single cable.
- a configuration in which the television 1 and the mobile phone terminal 2 are directly connected via HDMI as shown in FIG. 4C without using the HDMI cable 3 may be adopted.
- the TV 1 shown in FIG. 4C is provided with a slot 13.
- the HDMI output terminal 21 of the mobile phone terminal 2 and the TV provided in the slot 13 are provided.
- 1 HDMI input terminal 41 is directly connected.
- a configuration in which the mobile phone terminal 2 is loaded on the bezel portion (bezel portion below the LCD) of the television 1 from the front may be adopted.
- FIG. 1 is a block diagram showing the configuration of the mobile phone terminal 2.
- the mobile phone terminal 2 includes an HDMI output terminal 21, a power supply terminal 22, an HDMI transmitter 200, a micro USB terminal 201, a micro USB I / F 202, a Bluetooth I / F 203, a WLAN (Wireless LAN).
- I / F 204 memory card 205 (removable), USIM (Universal Subscriber Identity Module) card 206 (removable), GPS (Global positioning system) 207, RF unit 211, audio CODEC 212, main controller 213, RTC (Real Time Clock) ) Unit 214, key scan unit 215, charging circuit 216, power supply regulator 217, battery remaining amount detection unit 218, battery 219, LCD controller 220, LCD 221, touch panel 222, camera 223, DTV unit 224, FLASH memory 225, AM226, and a speaker 227.
- blocks mounted on the main board together with the main controller 213 are surrounded by a dotted line.
- the mobile phone terminal 2 includes (1) a call function mainly realized by the RF unit 211 and the voice CODEC unit 212, (2) an image pickup function mainly realized by the camera 223, and (3) mainly by the DTV unit 225.
- One-segment broadcasting reception function realized (4) Power supply function realized mainly by battery 219 and power supply regulator 217, (5) Mainly power supply terminal 22, HDMI output terminal 21, charging circuit 216, and remaining battery level detection Charging function realized by the unit 218 and the battery 219 which is a rechargeable battery, (6) wireless communication function mainly realized by Bluetooth I / F 203 or WLAN I / F 204, (7) mainly realized by GPS 207 (8) a time management function realized mainly by the RTC 214, (9) mainly a key scan unit 215 or a touch panel And a user operation detection functions implemented by 222.
- the charging circuit 216 is connected to the power supply terminal 22 and the HDMI output terminal 21, the power supply terminal 22, an HPD (hot plug detection) pin that is the 19th pin of the HDMI output terminal 21, It is possible to receive power supply from any of these. Since other functions are normal functions provided in the conventional mobile phone terminal 2, the description thereof is omitted here.
- the mobile phone terminal 2 has a content playback function for playing back content in addition to these functions.
- Examples of content that can be reproduced by the mobile phone terminal 2 include still images, moving images, and audio.
- the main controller 213 decodes still image data (JPEG data, etc.), moving image data (MPEG data, etc.), or audio data (MP3 data, etc.) read from the FLASH memory 225. It is realized by doing. Instead of the FLASH memory 225, still image data, moving image data, or audio data read from the USB device connected to the MicroUSB terminal or the memory card 205 may be decoded.
- the content decoded by the main controller 213 is supplied to the HDMI transmitter 200.
- the HDMI transmitter 200 transmits the content supplied from the main controller 213 to the television 1 connected via the HDMI cable 3.
- the mobile phone terminal 2 has a communication application execution function.
- Communication applications that can be executed by the mobile phone terminal 2 include those that use communication with the base station by the RF 211 unit and those that use short-range wireless communication by the Bluetooth I / F 203 or the WLAN I / F 204. Yes (applications using the Internet can be implemented as both the former communication application and the latter communication application).
- Specific examples of the communication application include dedicated applications for using various web services in addition to general-purpose applications such as an e-mail client and a web browser.
- the main controller 213 realizes a cooperative operation with the television 1 by executing the CEC command received by the HDMI transmitter 200 from the television 1 or generating the CEC command transmitted by the HDMI transmitter 200 to the television 1. To do. For example, when the HDMI transmitter 200 receives a ⁇ Give Physical Address> command, the main controller 213 uses a ⁇ Report Physical Address> command with arguments of its own physical address and logical address (Playback Device) as arguments. To send to. When the HDMI transmitter 200 receives the ⁇ Give Device Type> command, the main controller 213 causes the HDMI transmitter 200 to transmit a ⁇ Report Device Type> command having its device type (Mobile Phone) as an argument.
- the main controller 213 when the main controller 213 receives a ⁇ Set Stream Path> command via the CEC • I / F 252 while supplying content, the main controller 213 indicates whether or not the supplied content is displayed on the LCD 110 of the television 1.
- Info> command (instruction command) which requests information is transmitted to the HDMI transmitter 200.
- the cooperative operation between the television 1 and the mobile phone terminal 2 using the CEC command will be described in detail later with reference to another drawing.
- FIG. 5 is a block diagram showing a configuration of the television 1.
- the television 1 includes three HDMI input terminals 11a to 11c, an HDMI switch 11d, an HDMI receiver 100, a video input terminal 101a, an audio input terminal 101b, a BD drive 102, a tuner 103, an IP broadcast tuner 104, Satellite broadcast tuner 105, OSD generation unit 106, video selector 107, video processing circuit 108, LCD controller 109, LCD (Liquid Crystal Display) 110, audio selector 111, audio processing circuit 112, digital amplifier 113, speaker 114, Ethernet (registration) Trademark) I / F 115, ROM 116, RAM 117, CPU 118, infrared light receiving unit 119, camera 120, human sensor 121, and illuminance sensor 122.
- the video signal path is indicated by a solid line
- the audio signal path is indicated by a one-dot chain line
- the data (control) path (bus) is indicated by a bold line.
- the video received by the tuner 103 for broadcasting, the video received by the IP broadcast tuner 104, and the video received by the satellite broadcast tuner 105 are supplied to the video selector 107, respectively.
- the audio received by the IP broadcast tuner 104 and (6) the audio received by the satellite broadcast tuner 105 are supplied to the audio selector 111, respectively.
- the HDMI receiver 101 receives the content input from which HDMI input terminal, that is, the HDMI switch 11 d supplies the content input from which HDMI input terminal to the HDMI receiver 100
- the HDMI switch 11 d supplies the content input from which HDMI input terminal to the HDMI receiver 100
- the tuner 103 receives via which content is transmitted
- the IP broadcast tuner 104 receives from which content is distributed
- the satellite broadcast tuner 105 is which The CPU 118 performs selection control for deciding whether to receive the content transmitted through the other channels.
- playback control such as playback, stop, fast forward, rewind, chapter transition in the BD drive 102 is performed by the CPU 118.
- the video selector 107 is (1) video supplied from the HDMI receiver 100, (2) video supplied from the video input terminal 101a, (3) video supplied from the BD drive 102, and (4) video supplied from the tuner 103. 1, (5) an image supplied from the IP broadcast tuner 104, and (6) an image supplied from the satellite broadcast tuner 105.
- the video selected by the video selector 107 is supplied to the video processing circuit 108. Note that the CPU 118 controls which video the video selector 107 selects.
- the video processing circuit 108 adjusts the image quality of the video supplied from the video selector 107.
- the video processing circuit 108 scales the video supplied from the video selector 107.
- adjustment of image quality refers to changing at least one of brightness, sharpness, and contrast, for example.
- Scaling refers to reducing the size while maintaining the original aspect ratio of the video to be displayed.
- the image that has undergone image quality adjustment and scaling by the image processing circuit 108 is supplied to the LCD controller 109. Note that the CPU 118 controls how the image processing circuit 108 changes the image quality and how much the image is reduced.
- the LCD controller 109 drives the LCD 110 so that the video supplied from the video processing circuit 108 is displayed. As a result, the image selected by the image selector 107 is output from the LCD 110.
- the LCD controller 109 displays the OSD image supplied from the OSD generation unit 106 on the video supplied from the video processing circuit 108.
- the audio selector 111 is an audio supplied from the HDMI receiver 100, an audio supplied from the video input terminal 101a, an audio supplied from the BD drive 102, an audio supplied from the tuner 103, and an audio supplied from the IP broadcast tuner 104. And any one of the voices supplied from the satellite broadcast tuner 105 is selected.
- the sound selected by the sound selector 111 is supplied to the sound processing circuit 112.
- the CPU 118 controls which sound the sound selector 111 selects.
- the selection of the video in the video selector 107 and the selection of the audio in the audio selector 111 are interlocked. For example, when the video selector 107 selects the video supplied from the HDMI receiver 100, the audio selector 111 is selected. Also, the audio supplied from the HDMI receiver 100 is selected.
- the audio processing circuit 112 adjusts the volume and quality of the audio supplied from the audio selector 111.
- the adjustment of the sound quality refers to changing the frequency characteristics of the sound supplied from the sound selector 111 (for example, emphasizing a low frequency or emphasizing a high frequency).
- the sound whose volume and sound quality are adjusted by the sound processing circuit 112 is supplied to the digital amplifier 113.
- the CPU 118 controls how the sound processing circuit 112 changes the sound volume and sound quality.
- the digital amplifier 113 drives the speaker 114 so that the sound supplied from the sound processing circuit 112 is output. Thereby, the sound selected by the sound selector 111 is output from the speaker 114.
- the CPU 118 controls the above-described units according to the remote control signal received by the infrared light receiving unit 119, the image captured by the camera 120, the sensor signal output by the human sensor 121, and the sensor signal output by the illuminance sensor 122.
- the sensor signal of the human sensor 121 is a binary signal indicating whether or not a viewer exists within the sensing range.
- the sensor signal of the illuminance sensor 122 is a multi-value signal indicating the illuminance (brightness) around the illuminance sensor 122.
- Control using the infrared light receiving unit 119 includes, for example, control for switching a channel selected by the tuner 104 according to a remote control signal, and video and audio selected by the video selector 107 and the audio selector 111 according to a remote control signal. Examples include switching control.
- the control using the camera 120 includes, for example, control for switching how the image quality is adjusted in the video processing circuit 108 according to the viewer specified based on the captured image.
- examples of the control using the human sensor 121 include control for switching whether the backlight of the LCD 110 is turned on or off according to the detection result.
- the CPU 118 executes a CEC command received from the mobile phone terminal 2 by the HDMI receiver 100 or generates a CEC command to be transmitted from the HDMI receiver 100 to the mobile phone terminal 2. Realize cooperative operation. The cooperative operation between the television 1 and the mobile phone terminal 2 using the CEC command will be described in detail later with reference to another drawing.
- the ROM 116 is a readable and non-writable memory in which fixed data such as a program executed by the CPU 118 is stored.
- the ROM 116 also stores JPEG data, SVG (Scalable Vector Graphics) data, and the like that are referred to by the OSD generation unit 106 to generate an OSD image.
- the RAM 117 is a readable and writable memory in which variable data such as data referred to by the CPU 118 for calculation and data generated by the CPU 118 by calculation is stored.
- the Ethernet I / F 115 is an interface for connecting the television 1 to a network.
- the IP broadcast tuner 105 described above accesses a server on the Internet via the Ethernet I / F 115.
- FIG. 2 is a block diagram illustrating the configuration of the main controller 213 and the HDMI transmitter 200 of the mobile phone terminal 2 and the configuration of the HDMI receiver 100 included in the television 1.
- the HDMI cable 3 transmits a TMDS (Transition-Minimized Differential Signaling) line for transmitting contents (video signal and audio signal), a CEC line for transmitting a CEC (Consumer-Electronics Control) command, and EDID (Extended Display-Identification Data).
- TMDS Transition-Minimized Differential Signaling
- CEC Consumer-Electronics Control
- EDID Extended Display-Identification Data
- a DDC Display Data Cannel
- HPD that transmits an HPD (Hot Plug Detect) signal
- 5 V power line whose voltage (to ground potential) is controlled to 5 V by a source device for connection detection Yes.
- the HDMI receiver 100 includes a TMDS receiver 151, a CEC / I / F 152, a DDC / I / F 153, an HPD control unit 154, a 5V power detection unit 155, and an EDID storage unit 156. Each unit of the HDMI receiver 100 is controlled by the CPU 118.
- the TMDS receiver 151 is an interface for receiving content transmitted via the TMDS line of the HDMI cable 3.
- the content received by the TMDS receiver 151 is supplied to the video selector 107 and the audio selector 111.
- the CEC • I / F 152 is an interface for receiving a CEC command transmitted via the CEC line of the HDMI cable 3.
- the CEC command received by the CEC • I / F 152 is supplied to the CPU 118.
- the CEC • I / F 152 is also an interface for transmitting a CEC command via the CEC line of the HDMI cable 3.
- the CEC command transmitted by the CEC • I / F 152 is supplied from the CPU 118.
- the DDC I / F 153 is an interface for transmitting EDID via the DDC line of the HDMI cable 3.
- the EDID transmitted by the DDC / I / F 153 is read from the EDID storage unit 156.
- the 5V power detection unit 155 monitors the voltage of the 5V power pin to which the 5V power line of the HDMI cable 3 is connected, and detects the rising timing. When detecting that the voltage of the 5V power pin has risen to 5V, the 5V power detection unit 155 notifies the CPU 118 and the HPD control unit 154 that the connection with the HDMI transmitter 200 has been established. Upon receiving this notification from the 5V power detection unit 155, the HPD control unit 154 raises the voltage of the HPD pin to which the HPD line of the HDMI cable 3 is connected to the H level. When the voltage of the HPD pin connected to the HPD line of the HDMI cable 3 rises to the H level, the HDMI transmitter 200 reads out the EDID stored in the EDID storage unit 156 of the HDMI receiver 100 via the DDC line.
- the HDMI transmitter 200 includes a TMDS transmitter 251, a CEC • I / F 252, a DDC • I / F 253, an HPD detection unit 254, and a 5V power control unit 255. Each part of the HDMI transmitter 200 is controlled by the main controller 213.
- the TMDS transmitter 251 is an interface for transmitting content via the TMDS line of the HDMI cable 3.
- the content transmitted by the TMDS transmitter 251 is content decoded by the main controller 213.
- the CEC • I / F 252 is an interface for receiving a CEC command transmitted via the CEC line of the HDMI cable 3.
- the CEC command received by the CEC • I / F 252 is supplied to the main controller 213.
- the CEC • I / F 252 is also an interface for transmitting a CEC command via the CEC line of the HDMI cable 3.
- the CEC command transmitted by the CEC • I / F 252 is supplied from the main controller 213.
- the DDC / I / F 253 is an interface for receiving EDID transmitted via the DDC line of the HDMI cable 3.
- the EDID received by the DDC / I / F 253 is stored in the RAM 226 via the main controller 213.
- the 5V power control unit 255 controls the voltage of the 5V power pin connected to the 5V power line of the HDMI cable 3 to 5V so that it can be detected that the HDMI receiver 100 is connected to the HDMI transmitter 200.
- the HPD detection unit 254 monitors the voltage of the HPD pin to which the HPD line of the HDMI cable 3 is connected, and detects the rising timing. Upon detecting that the voltage of the HPD pin has risen to the H level, the HPD detection unit 254 notifies the main controller 213 and the DDC / I / F 253 that the connection with the sink device has been established. Upon receiving this notification from the HPD detection unit 254, the DDC • I / F 253 reads the EDID stored in the EDID storage unit 156 via the DDC • I / F of the HDMI receiver 100.
- the CEC command transmitted / received between devices connected by the HDMI cable includes the logical address and / or physical address of the transmission source and / or transmission destination as arguments.
- Each device connected by the HDMI cable specifies the transmission source and / or transmission destination of the CEC command by the logical address and / or physical address included in the CEC command.
- the logical address is expressed by an integer from 0 to 14 indicating the device type (any of TV, recorder, player, tuner, and audio).
- the logical address “0” is allocated to the television
- the logical address “1” is allocated to the first recorder
- the logical address “2” is allocated to the second recorder.
- the correspondence relationship between the logical address and the device type is determined as shown in the table below.
- “TV”, “Recording Device 1 to 3”, “Playback Device 1 to 3”, “Tuner 1 to 4”, and “Audio System” in the table below are respectively referred to as “TV” and “Recorder”. ”,“ Player ”,“ tuner ”, and“ audio ”.
- the physical address is expressed by a 4-digit natural number indicating the path from the source device.
- the physical address (x, 0, 0, 0) is assigned to the source device X connected to the xth HDMI input terminal of the sink device (TV) and connected to the yth HDMI input terminal of the source device X.
- the physical address (x, y, 0, 0) is assigned to the source device Y that has been assigned.
- a physical address (1, 0, 0, 0) is allocated to the source device connected to the HDMI input terminal 11a
- a physical address (2) is assigned to the source device connected to the HDMI input terminal 11b. , 0, 0, 0).
- a physical address (0, 0, 0, 0) is assigned to a television that is a sink device.
- the main controller 213 includes an output control unit 2131, an external output data generation unit 2132, and an internal output data generation unit 2133.
- the external output data generation unit 2132 generates an external output, that is, a content video signal and a content audio signal in accordance with the resolution of the LCD 100 of the television 1, and outputs them to the TMDS transmitter 251.
- the resolution value the resolution value recorded as EDID on the television 1 may be used, or the mobile phone terminal 2 itself holds the resolution value for external output in the RAM 226 and the RAM 226 holds the resolution value.
- the resolution value to be used may be used.
- the internal output data generation unit 2133 generates an internal output, that is, a content video signal and a content audio signal according to the resolution of the LCD 221 of the mobile phone terminal 2. Then, the internal output data generation unit 2133 outputs the generated audio signal of the content to the speaker 227 and outputs the video signal of the content to the LCD controller 220.
- the output control unit 2131 When the output control unit 2131 receives the ⁇ Set Stream Path> command via the CEC • I / F 252 while the content generated by the external output data generation unit 2132 is supplied to the television 1, the content being supplied is A ⁇ Request
- the output control unit 2131 receives the display source information as a ⁇ Report Display Source Info> command via the CEC • I / F 252, the output content is displayed on the LCD 110 of the television 1, and It is determined whether the display source information indicates what is not displayed.
- Info> command are new vendor commands disclosed in this application.
- the output control unit 2131 causes the external output data generation unit 2132 to continuously generate content and output from the TMDS transmitter 251 according to the result of determining the display source information, or the external output data generation unit 2132 It is determined whether to stop the generation of content by the process and to stop the processing of the TMDS transmitter 251.
- FIG. 6 is a functional block diagram representing the functions of the CPU 118 of the television 1. Note that the block diagram shown in FIG. 6 represents some of the various functions of the CPU 118, and it is needless to say that the CPU 118 may have functions not shown in FIG.
- the CPU 118 of the television 1 functions as an address acquisition unit 301, a device type acquisition unit 302, a management table update unit 303, an input source selection unit 304, and a display source information supply unit 305.
- the address acquisition unit 301, the device type acquisition unit 302, the management table update unit 303, and the display source information supply unit 305 store the management tables as shown in FIGS. 7A to 7C stored in the RAM 117. Operates with reference.
- this management table for each source device that is HDMI-connected to the TV 1, a physical address, a logical address (first device type information), a device type (second device type information), and the source device are supplied. Information indicating whether or not the displayed video is displayed on the LCD 110 is stored in association with each other.
- the device type refers to information indicating the device type in which the source device is classified in a classification different from the logical address.
- information indicating whether the source device is classified as a portable device or a non-mobile device is used as the device type.
- a source device whose device type is set to “Mobile Phone” is a portable device, and a source device that is not so is a non-mobile device (stationary device).
- the address acquisition unit 301 is a means for acquiring a physical address and a logical address from a source device connected to the television 1 via HDMI. Upon receiving a notification from the 5V power detection unit 155 that a new source device has been HDMI-connected to the television 1, the address acquisition unit 301 acquires the physical address and logical address from the newly connected source device. .
- a ⁇ Give ⁇ ⁇ Physical Address> command which is a CEC standard command, is used as a command for acquiring a physical address and a logical address.
- the address acquisition unit 301 notifies the management table update unit 303 of the acquired physical address and logical address, and notifies the device type acquisition unit 302 that the address acquisition process is completed. To do.
- the device type acquisition unit 302 is a means for acquiring the device type from the source device HDMI-connected to the television 1. Upon receiving notification from the address acquisition unit 301 that the address acquisition process has been completed, the device type acquisition unit 302 acquires the device type from the source device connected to the television 1 via HDMI. In this embodiment, a ⁇ Give ⁇ Device Type> command, which is a new vendor command disclosed in the present application, is used as a command for acquiring a device type.
- the device type acquisition unit 302 notifies the management table update unit 303 of the acquired device type.
- the device type acquisition unit 302 notifies the management table update unit 303 that the device type is “player”.
- the management table update unit 303 registers the physical address and logical address notified from the address acquisition unit 301 and the device type notified from the device type acquisition unit 302 in association with each other in the management table. Also, the management table update unit 303 is information (on-display information) indicating whether or not video from a source device HDMI-connected to the television 1 is displayed on the LCD 11 based on an instruction from the input source selection unit 304 described later. ) Is recorded in the management table in association with the physical address and logical address already recorded and the device type.
- the input source selection unit 304 is one of the source devices that are HDMI-connected to the TV 1. This is a means for selecting as an input source. Further, the input source selection unit 304 causes the video selector 107 to select the BD drive 102 and the various tuners 103 to 105 included in the television 1 as input sources in response to a request from a user operating the television 1. It is also a means for. A request from the source device is given from the CEC • I / F 152 as a CEC command, and a request from the user is given from the infrared light receiving unit 119 as a remote control signal. In the present embodiment, an ⁇ Active Source> command is assumed as a CEC command for requesting input source switching.
- the input source selection unit 304 associates the physical address and logical address of the source device selected as the input source, and the device type with a value “ ⁇ ” indicating that the video from the source device is displayed on the LCD 11.
- the management table update unit 303 is instructed to record the information as on-display information in the management table. Further, the input source selection unit 304 displays the physical address and logical address of the source device selected as the input source, and on-display information associated with the device type, and the video from the source device is not displayed on the LCD 11.
- the management table update unit 303 is instructed to update the value to “ ⁇ ” indicating the fact.
- the input source selection unit 304 displays the physical address “
- the management table updating unit 303 is instructed to record “ ⁇ ” as on-display information in the management table in association with the “2.0.0.0”, the logical address “Player”, and the device type “MobilePhone”. Further, the management table update unit 303 changes the physical address “1.0.0.0” and the logical address “Player” of the BD player 3-and the on-display information associated with the device type “Player” from “ ⁇ ” to “ ⁇ ”. To the management table updating unit 303. As a result, the management table has the contents shown in FIG.
- the input source selection unit 304 displays the mobile phone terminal.
- the management table updating unit 303 is instructed to update the on-display information associated with the physical address “2.0.0.0”, the logical address “Player”, and the device type “MobilePhone” to “ ⁇ ”. Further, the management table updating unit 303 updates the physical address “1.0.0.0” and the logical address “Player” of the BD player 30 and the on-display information associated with the device type “Player” to “ ⁇ ”.
- the management table update unit 303 is instructed. As a result, the management table has the contents shown in FIG.
- the input source selection unit 304 When the input source selection unit 304 receives an ⁇ Active Source> command from any of the source devices connected to the TV 1 via HDMI, the input source is input to the source device specified by the physical address included in the ⁇ Active Source> command. And a ⁇ Set
- switching the input source to the source device specified by the physical address (x, y, z, w) controls the HDMI switch 11 d so that the x th HDMI input terminal is connected to the HDMI receiver 100.
- the ⁇ Set Stream Path> command is sent because the input source is switched to a device interposed between the TV 1 and the source device that sent the ⁇ Active Source> command so that the path passes between them. It is for instructing.
- the input source selection unit 304 similarly selects the selected source device.
- Path> command which uses the physical address of the argument as an argument is transmitted to each source device connected to the television 1.
- the input source selection unit 304 displays the physical address of the television 1 itself.
- a ⁇ Set Stream Path> command having “0.0.0.0” as an argument is transmitted to each source device connected to the television 1.
- the display source information supply part 305 When ⁇ Request
- the management table has the contents shown in FIG. 7B, the physical address “2.0.0.0” is extracted.
- Info> includes the physical address of the transmission source which transmitted ⁇ Request
- the display source information supply unit 305 refers to the argument of ⁇ Request
- Info> The display source information supply unit 305 stores all the physical addresses extracted earlier in the argument of the ⁇ Report
- FIG. 8 is a flowchart showing the flow of the management table update process executed in the television 1. Each step included in the flowchart shown in FIG. 8 will be described in order as follows.
- Step S1 When the address acquisition unit 301 receives a notification from the 5V power detection unit 155 that the connection with the source device has been established, the address acquisition unit 301 transmits a ⁇ Give Physical Address> command to the source device.
- Step S2 The address acquisition unit 301 waits for a response from the source device to the ⁇ Give Physical Address> command. Upon receiving the ⁇ Report Physical Address> command, the address acquisition unit 301 notifies the management table update unit 303 of the physical address and logical address (device type information) included as arguments in the ⁇ Report Physical Address> command, The device type acquisition unit 302 is notified that the address acquisition process has been completed.
- Step S3 Upon receiving the notification that the address acquisition process has been completed, the device type acquisition unit 302 transmits a ⁇ Give Device Type> command to the source device.
- Steps S4 to S5 The device type acquisition unit 302 waits until the response from the source device to the ⁇ Give Device Type> command times out (Yes in Step S5).
- the time-out means that a predetermined time (for example, 1 second) has elapsed since the ⁇ Give Device Type> command was transmitted.
- the device type acquisition unit 302 notifies the management table update unit 303 that the device type is “Mobile Phone”.
- the device type is information indicating whether the issuer of ⁇ Report Device Type> is a mobile phone terminal, and when the issuer of ⁇ Report Device Type> is a mobile phone terminal Takes the value "Mobile Phone".
- Step S6 If a timeout occurs before receiving the ⁇ Report Device Type> command, the device type acquisition unit 302 notifies the management table update unit 303 of the device type corresponding to the logical address acquired in Step S2.
- Step S7 The management table update unit 303 sets the physical address and logical address notified from the address acquisition unit 301 in step S2 and the device type notified from the device type acquisition unit 302 in step S4 or step S6. Record them in the management table in association with each other.
- FIG. 9 is a flowchart showing the operation of the mobile phone terminal 2 in this case.
- Step S11 First, the output control unit 2131 of the main controller 213 receives the ⁇ Set Stream Path> command via the CEC • I / F 252 of the HDMI transmitter 200.
- Step S12 The output control unit 2131 determines whether the external output data generation unit 2132 and the TMDS transmitter 251 are performing processing. If it is determined that the processing is being performed (that is, the video and audio of the content is being transmitted from the TMDS transmitter 251 to the television 1) (YES in step S12), the process proceeds to step S15. On the other hand, if it is determined that the process is not being performed (NO in step S12), the process proceeds to step S13.
- Step S13 The output control unit 2131 refers to the argument of the ⁇ Set Stream Path> command, and determines whether or not the physical address included in the argument matches the physical address of the mobile phone terminal 2. If it is determined that it matches the physical address of mobile phone terminal 2 (NO in step S13), the process ends. On the other hand, if it is determined that the physical address of the mobile phone terminal 2 does not match (YES in step S13), the process proceeds to step S14.
- Step S14 The output control unit 2131 instructs the external output data generation unit 2132 and the TMDS transmitter 251 to perform processing. That is, the output control unit 2131 controls the external output data generation unit 2132 to generate the content video at the resolution for external output and controls the power to be supplied to the TMDS transmitter 251 to generate the external output data generation unit 2132. Send video content. After step S14, the process ends.
- Step S15 The output control unit 2131 requests the television 1 to transmit display source information. That is, the output control unit 2131 transmits a ⁇ Request Display Source Info> command in which the physical address of the mobile phone terminal 2 is stored as an argument to the television 1 via the CEC • I / F 252.
- Step S16 The output control unit 2131 receives a ⁇ Report Display Source Info> command from the television 1 via the CEC • I / F 252.
- Step S17 The output control unit 2131 determines whether or not the physical address of the mobile phone terminal 2 is included in the argument of the ⁇ Report Display Source Info> command received in Step S16, that is, from the mobile phone terminal 2 to the TV 1 It is determined whether the video supplied to is displayed on the LCD 110 of the television 1. If it is determined that the physical address of mobile phone terminal 2 is included (YES in step S17), the process ends. On the other hand, when it is determined that the physical address of the mobile phone terminal 2 is not included (NO in step S17), the process proceeds to step S18.
- Step S18 The output control unit 2131 instructs the external output data generation unit 2132 and the TMDS transmitter 251 to stop the processing. That is, the output control unit 2131 stops the external output data generation unit 2132 from generating the content video. Then, the output control unit 2131 controls the battery 219 not to supply the TMDS transmitter 251 with operating power necessary for the TMDS transmitter 251 to operate. After step S18, the process ends.
- the operation example of the entire system 10 here is a case where the following operations (1) and (2) are sequentially performed by the user in a state where the input source of the television 1 is the mobile phone terminal 2. It will be described that the operation corresponds to each operation.
- the input source selection unit 304 of the television 1 that first receives the operation (1) by the user switches the HDMI switch 11d to the HDMI terminal 11b that is HDMI-connected to the BD player 30, and displays the management table of the RAM 117 in FIG.
- the management table update unit 303 is instructed to change the content of b) to the content of FIG.
- the input source selection unit 304 transmits a ⁇ Set Stream Path> command in which the physical address “1.0.0.0” of the BD player 30 is stored as an argument to the mobile phone terminal 2 and the BD player 30.
- the BD player 30 that has received the ⁇ Set Stream Path> command storing its own physical address “1.0.0.0” as an argument outputs the video and audio of the BD being played back by the BD player 30 to the television 1.
- Source> command are output to the television 1.
- the output control unit 2131 of the mobile phone terminal 2 that has received the ⁇ Set Stream Path> command in which the physical address “2.0.0.0” is not stored as an argument via the CEC • I / F 252
- a ⁇ Request Display Source Info> command storing the physical address “2.0.0.0” is output to the television 1 via the CEC • I / F 252.
- the display source information supply unit 305 of the television 1 that has received the ⁇ Request Display Source Info> command via the CEC I / F 152 refers to the management table of the content of FIG. Then, the display source information supply unit 305 sends a ⁇ Report Display Source Info> command with an argument of the physical address “1.0.0.0” of the BD player 30 that is displaying the video, and a ⁇ Request Display Source Info> command transmission source. Is transmitted to the mobile phone terminal 2.
- the output control unit 2131 of the mobile phone terminal 2 that has received the ⁇ Report Display Source Info> command via the CEC I / F 252 receives the physical address “2.0.0.0” of the mobile phone terminal 2 as an argument of the ⁇ Report Display Source Info> command. Is included (ie, the video from the mobile phone terminal 2 to the television 1 is not displayed on the television 1), the external output data generation unit 2132 and the TMDS transmitter 251 are instructed to stop processing.
- the input source selection unit 304 of the television 1 that has accepted the operation (2) by the user switches the HDMI switch 11d to the HDMI terminal 11a that is HDMI-connected to the mobile phone terminal 2, and the management table of the RAM 117 is shown in FIG.
- the management table update unit 303 is instructed to change the content of FIG. 7C to the content of FIG.
- the input source selection unit 304 transmits a ⁇ Set Stream Path> command in which the physical address “2.0.0.0” of the mobile phone terminal 2 is stored as an argument to the mobile phone terminal 2 and the BD player 30.
- the output control unit 2131 of 2 causes the external output data generation unit 2132 and the TMDS transmitter 251 to start processing, and causes the video and audio of the content to be output to the television 1 via the TMDS transmitter 251. Furthermore, the output control unit 2131 outputs the ⁇ Text
- FIG. 1 A mobile phone terminal that has received the ⁇ Set Stream Path> command via the CEC I / F 252 in which the physical address “2.0.0.0” is stored as an argument even though the ⁇ Active Source> command has not been transmitted
- the output control unit 2131 of 2 causes the external output data generation unit 2132 and the TMDS transmitter 251 to start processing, and causes the video and audio of the content to be output to the television 1 via the TMDS transmitter 251. Furthermore, the output control unit 2131 outputs the ⁇ Text
- the input source selection unit 304 of the television 1 that has received the ⁇ Text View On> command and the ⁇ Active Source> command controls to display the video from the mobile phone terminal 2 on the LCD 110, and sends the ⁇ Set Stream Path> command to the mobile phone. Output to terminal 2.
- FIG. 10 (Modification of system 10) A system in which the television 1 is replaced with the television 1 ′ in the system 10 shown in FIG. 3B (hereinafter referred to as “system according to a modification”) will be described with reference to FIG.
- the television 1 ′ has a two-screen display function that enables images from two different input sources to be displayed simultaneously on the left screen and the right screen of the LCD 110.
- FIG. 12 is a block diagram showing the configuration of the television 1 ′.
- the television 1 ′ has substantially the same function as the television 1, but the television 1 ′ has two HDMI receivers 100a and 100b, two HDMI switches (that is, an HDMI switch 11d connected to the HDMI receiver 100a, and The difference is that an HDMI switch 11e) connected to the HDMI receiver 100b is provided.
- the video selector 107 ′ of the television 1 ′ includes (1) a video supplied from the HDMI receiver 100 a, (2) a video supplied from the HDMI receiver 100 b, (3) a video supplied from the video input terminal 101 a, ( 4) video supplied from the BD drive 102, (5) video supplied from the tuner 103, (6) video supplied from the IP broadcast tuner 104, and (7) video supplied from the satellite broadcast tuner 105. It is different from the video selector 107 of the television 1 in that any one or two of them can be selected. Since the other configuration of the television 1 ′ is the same as that of the television 1, description thereof is omitted.
- [TV] [mobile phone] [player] indicate the physical addresses of the television 1 ′, the mobile phone terminal 2, and the BD player 30 included in the command arguments, respectively.
- the overall operation example of the system according to the modified example here is a state in which two of the mobile phone terminal 2 and the BD player 30 are selected as input sources of the television 1 (as shown in FIG. 10A).
- each of the following (1) and (2) is sequentially performed by the user: It is described that the operation corresponds to each operation when the operation is performed.
- the input source selection unit 304 of the television 1 that first receives the operation (1) by the user replaces the video supplied from the HDMI receiver 100a to the video selector 107 (here, the video from the BD player 30).
- the management table update unit 303 is instructed to change the management table in the RAM 117 to the contents shown in FIG. Then, the input source selection unit 304 transmits a ⁇ Set Stream Path> command in which the physical address “0.0.0.0” of the television 1 ′ is stored as an argument to the mobile phone terminal 2 and the BD player 30.
- the output control unit 2131 of the mobile phone terminal 2 that has received the ⁇ Set Stream Path> command in which its own physical address “2.0.0.0” is not stored as an argument is received via the CEC • I / F 252, ⁇ Request
- the display source information supply unit 305 of the television 1 that has received the ⁇ Request Display Source Info> command via the CEC • I / F 152 refers to the management table of the content of FIG. 7B recorded in the RAM 117. Then, the display source information supply unit 305 uses the physical address “2.0.0.0” of the mobile phone terminal 2 that is displaying the video and the physical address “0.0.0.0” of the television 1 itself as arguments.
- the Source Info command is transmitted to the mobile phone terminal 2 that is the source of the ⁇ Request Display Info Source> command.
- the output control unit 2131 of the mobile phone terminal 2 that has received the ⁇ Report Display Source Info> command via the CEC I / F 252 receives the physical address “2.0.0.0” of the mobile phone terminal 2 as an argument of the ⁇ Report Display Source Info> command. Is determined to be included. In this case, the output control unit 2131 does not perform any special processing and causes the external output data generation unit 2132 and the TMDS transmitter 251 to continue processing.
- the input source selection unit 304 of the television 1 that has accepted the operation (2) by the user switches the HDMI switch 11e to the HDMI terminal 11b that is HDMI-connected to the BD player 30, and the management table of the RAM 117 is shown in FIG.
- the management table update unit 303 is instructed to change the content of FIG. 7B to the content of FIG.
- the input source selection unit 304 transmits a ⁇ Set Stream Path> command in which the physical address “1.0.0.0” of the BD player 30 is stored as an argument to the mobile phone terminal 2 and the BD player 30.
- the BD player 30 that has received the ⁇ Set Stream Path> command storing its own physical address “1.0.0.0” as an argument outputs the video and audio of the BD being played back by the BD player 30 to the television 1.
- Source> command are output to the television 1.
- the output control unit 2131 of the mobile phone terminal 2 that has received the ⁇ Set Stream Path> command in which the physical address “2.0.0.0” is not stored as an argument via the CEC • I / F 252
- a ⁇ Request Display Source Info> command storing the physical address “2.0.0.0” is output to the television 1 via the CEC • I / F 252.
- the display source information supply unit 305 of the television 1 that has received the ⁇ Request Display Source Info> command via the CEC • I / F 152 refers to the management table of the content of FIG. 7B recorded in the RAM 117. Then, the display source information supply unit 305 uses ⁇ Report Display Source with the physical address “1.0.0.0” of the BD player 30 displaying the video and the physical address “0.0.0.0” of the television 1 itself as arguments.
- the Info> command is transmitted to the mobile phone terminal 2 that is the transmission source of the ⁇ Request / Display / Source / Info> command.
- the output control unit 2131 of the mobile phone terminal 2 that has received the ⁇ Report Display Source Info> command via the CEC I / F 252 receives the physical address “2.0.0.0” of the mobile phone terminal 2 as an argument of the ⁇ Report Display Source Info> command. Is not included (that is, the video supplied from the mobile phone terminal 2 to the television 1 is not displayed on the television 1), the external output data generation unit 2132 and the TMDS transmitter 251 stop processing. Instruct.
- the internal output data generation unit 2133 restarts the process. That is, while the video supplied from the mobile phone terminal 2 to the television 1 is displayed on the television 1, the internal output data generation unit 2133 does not generate the content video (that is, the content is displayed on the LCD 221 of the mobile phone terminal 2. When the video supplied from the mobile phone terminal 2 to the TV 1 is no longer displayed on the TV 1, the internal output data generation unit 2133 generates the content video, and the mobile phone terminal 2 The content image is displayed on the LCD 221.
- FIG. 15 shows that the mobile phone terminal 2 is charged in cooperation with the mobile phone terminal 2 and the TV 1 when video supplied from the mobile phone terminal 2 to the TV 1 is no longer displayed on the LCD 110 of the TV 2. It is a flowchart which shows a process.
- Step S21 First, in the main controller 213, the 5V power control unit 255 controls the voltage of the 5V power pin of the HDMI terminal 21 to 0V.
- Step S22 The 5V power detection unit 155 of the television 1 detects that the voltage of the 5V power pin has fallen from 5V to 0V for the HDMI terminals 11a and 11b.
- Step S23 When the 5V power detection unit 155 detects the falling edge, the CPU 118 refers to the management table of the RAM 117, and the device type of the input source connected to the HDMI terminal where the voltage of the 5V power pin falls is “Mobile”. It is determined whether or not it is “phone”. If it is determined that the device type is not “Mobile phone” (NO in step S23), the process ends. On the other hand, if it is determined that the device type is “Mobile phone”, the process proceeds to step S24.
- Step S24 The HPD control unit 154 raises the HPD pin of the HDMI terminal where the voltage of the 5V power pin has fallen to the H level, so that the HDMI cable is connected to the mobile phone terminal 2 that is HDMI-connected to the HDMI terminal. Power is supplied through 3 HPD lines.
- Step S25 The HDMI terminal 21 is supplied with power from the HPD pin.
- Step S26 When the charging circuit 216 is supplied with power from the power terminal 22 (YES in Step S26), the power supplied from the power terminal is used as it is for charging the battery 219. On the other hand, when power is not supplied from the power supply terminal 22, the charging circuit 216 supplies the power supplied to the HDMI terminal 21 to the battery 219.
- the mobile phone terminal 2 not supplied with commercial power is connected to the HDMI cable 3.
- the electric power is supplied from the television 1 through the HPD pin, and the battery 219 can be charged using this electric power.
- the TMDS transmitter 251 (video supply unit) that supplies the video reproduced by the main controller 213 to the television 1, and the video that the TMDS transmitter 251 supplies to the television 1 is displayed on the LCD 110.
- the instruction of the output control unit 2131 (instruction means) for the television 1 is performed by a Request / Display / Source / Info command.
- the television 1 may be operated using a remote controller as described above, but may be operated using a portable information terminal such as a smartphone or a tablet PC.
- FIG. 16 is a diagram showing a configuration of a system 10 ′ capable of operating the television 1 using the portable information terminal 5.
- the system 10 ′ includes a television 1, a mobile phone terminal 2 that is a source device, a portable information terminal 5, and a router 7.
- the source device may be the mobile phone terminal 2, but may be a source device other than the mobile phone terminal, such as a recorder.
- the television 1 may be a stationary television connected to a commercial power source or a portable television with a built-in battery (including a monitor that reproduces video transmitted from an external tuner via a wireless LAN). It may be.
- the television 1 and the mobile phone terminal 2 are connected to each other via the HDMI cable 3.
- the point that the TV 1 and the mobile phone terminal 2 mutually control using the CEC command transmitted via the HDMI cable 3 is that the system 10 shown in FIGS. 3 (a) and 3 (b) It is the same.
- the television 1 and the portable information terminal 5 are further configured to communicate with each other.
- a communication medium that supports communication between the television 1 and the portable information terminal 5 is not particularly limited.
- a router 7 is interposed between the television 1 and the portable information terminal 5, and the television 1 and the router 7 are connected.
- the router 7 and the portable information terminal 5 are connected by a wireless LAN such as the IEEE802.11 series.
- the television 1 has a wireless LAN interface
- the TV 1 and the portable information terminal 5 preferably support UPnP (Universal Plug and Play).
- UPnP Universal Plug and Play
- the portable information terminal 5 enters the service area of the router 4, it can automatically detect the television 1 connected to the router 7 using a protocol such as SDDP. At this time, the portable information terminal 5 acquires the device name of the television 1.
- the portable information terminal 5 is installed with an application (hereinafter referred to as “remote control application”) for causing the portable information terminal 5 to function like a remote control of the television 1.
- remote control application an application for causing the portable information terminal 5 to function like a remote control of the television 1.
- IP control an application for causing the portable information terminal 5 to function like a remote control of the television 1.
- the portable information terminal 5 can be operated (IP control).
- IP control IP control
- the portable information terminal 5 displays a list of device names of the UPnP compatible devices and allows the user to select an operation target device.
- FIG. 17A shows an example of a display screen that is generated by a remote control application that operates on the portable information terminal 5 and displayed on the touch panel of the portable information terminal 5.
- This display screen is an emulation of a remote control.
- a power key labeled “TV power”, a volume adjustment key labeled “-” and “+”, and “1” to “12” are broadcast station names.
- Various keys for operating the television 1 are provided, such as a channel key written together. For example, when a channel key marked “1” is pressed, the remote control app transmits a control command to the television 1 instructing to switch the channel to one channel. The television 1 switches the channel to one channel according to the received control command.
- the Ethernet I / F 115 and the CPU 118 shown in FIG. 5 function as control command receiving means.
- the remote control app has a function of operating the mobile phone terminal 2 in addition to the function of operating the television 1. Specifically, when a “link operation” key provided at the bottom of the display screen shown in FIG. 17A is pressed, the display screen shown in FIG. 17B appears.
- the display screen shown in FIG. 17B is provided with various keys for operating the mobile phone terminal 2 such as a fast reverse key, a playback key, and a fast forward key.
- the remote control application transmits a control command for instructing start of playback of the target content to the television 1.
- the television 1 converts the received control command into a CEC command corresponding thereto, and transmits the obtained CEC command to the mobile phone terminal 2.
- the mobile phone terminal 2 starts reproduction of the target content according to the received CEC command.
- the Ethernet I / F 115, the CPU 118, and the HDMI receiver 100 shown in FIG. 5 function as control command transfer means.
- the television 1 notifies the portable information terminal 5 of the logical address and / or device type of the source device, and the remote control application operating on the portable information terminal 5 displays the logic of the source device.
- a display screen corresponding to the address and / or device type may be displayed. This makes it possible to cause the portable information terminal 5 to function as a remote controller suitable for the operation of the source device of any type, regardless of what type of source device is HDMI-connected to the television 1.
- the remote control application that operates on the portable information terminal 5 is based on emulating a conventional infrared remote control, but may have functions that were not found in the conventional infrared remote control. In addition to the functions of the conventional infrared remote control, for example, the following functions can be given to the remote control application.
- URL jump function that is, a function of starting a web browser operating on the television 1 and accessing a designated URL.
- TV status acquisition function that is, a function of acquiring status information (for example, the aforementioned source display information), setting information, and event information of the television 1.
- a character input function that is, a function of receiving an input of a character string using a software keyboard and transmitting the input character string to the television 1.
- Information notification function that is, a function for notifying the television 1 of the occurrence of an incoming call event or a mail reception event in the portable information terminal 5.
- Seamless search function that is, a function to display program information, recording list, VOD title, search result from the Internet by keyword.
- a friendly name setting function that is, a function for setting a friendly name (device list name) on the TV 1 side using the portable information terminal 5.
- the portable information terminal 5 and the cellular phone terminal 2 communicate with each other via the router 7 and the television 1, but the portable information terminal 5 and the cellular phone terminal 2 use a wireless LAN. It is also possible to adopt a configuration for direct communication. In this case, a control command for operating the mobile phone terminal 2 can be directly transmitted from the portable information terminal 5 to the mobile phone terminal 2.
- An example of such a control command is a control command for controlling the mobile phone terminal 2 so as to transmit the aforementioned ⁇ Request Display Source Info> command to the television 1. That is, when the remote control application has a TV state acquisition function, the mobile phone terminal 2 is a command for acquiring display source information when receiving the control command from the portable information terminal 5 during reproduction of content.
- Command> command may be transmitted to the television 1 which is the supply destination of the content.
- the television 1 when the television 1 receives the ⁇ Request Display Source Info> command, it returns the ⁇ Report Display Source Info> command to the transmission source of the command.
- the television 1 does not necessarily have to return the ⁇ Report Display Source Info> command. That is, the display source information supply unit 305 of the television 1 refers to the physical address stored in the argument of the ⁇ Request Display Source Info> command, and is associated with the referenced physical address on the management table of the RAM 117.
- the ⁇ Report Display Source Info> command may be returned to the sender only when the type is “Mobile Phone”.
- a vendor ID acquisition unit (manufacturer identification means) (not shown) is provided in the CPU 118 of the television 1, and when the mobile phone terminal 2 is connected to the television 1, the vendor ID acquisition unit sends a ⁇ Give Device Vendor ID> command to the mobile phone.
- ⁇ Report Vendor ID> for notifying the vendor ID for identifying the manufacturer of the mobile phone terminal 2 may be acquired from the mobile phone terminal 2.
- the “vendor ID” may be stored in the management table of the RAM 117 in association with each value of “physical address”, “logical address”, “device type”, and “on-display information”.
- the display source information supply unit 305 of the TV 1 refers to the physical address stored in the argument on the management table of the RAM 117 when the ⁇ Request / Display / Source / Info> command is sent. Only when the vendor ID associated with the address is a vendor ID representing a specific manufacturer (for example, “Sharp”), return the ⁇ Report Display Source Info> command to the sender (the Sharp mobile phone terminal). Also good.
- the TV 1 uses the mobile phone terminal as an argument to the ⁇ Report Display Source Info> command to be transmitted to the mobile phone terminal 2.
- the television 1 is not limited to this. That is, even if the video supplied from the mobile phone terminal 2 to the television 1 is displayed on the LCD 110, the physical address of the mobile phone terminal 2 may be changed to the ⁇ Report Display Source Info> command depending on the surroundings of the television 1. It may not be included in the argument.
- the physical address of the mobile phone terminal 2 may not be included in the argument of the ⁇ Report Display Source Info> command
- the human sensor 121 when the human sensor 121 has not detected that there is a person around, Examples include a case where the illuminance sensor 122 detects that the illuminance is very high (higher than a predetermined threshold) (that is, the surroundings are too bright and it is difficult to view the image displayed on the LCD 110 of the television 1).
- the mobile phone terminal 2 receives a ⁇ Report Display Source Info> command whose physical address is not included in the argument, so that the video supplied to the television 1 is displayed on the LCD 110.
- the processing of the external output data generation unit 2132 and the TMDS transmitter 251 is stopped. Thereby, it is possible to prevent the TMDS transmitter 251 from wastefully supplying video to the television 1 (that is, the TMDS transmitter 251 wastefully consumes power).
- the mobile phone terminal 2 when the mobile phone terminal 2 receives a ⁇ Report Display Source Info> command whose own physical address is not included in the argument, it does not stop the processing of the external output data generation unit 2132 and the TMDS transmitter 251;
- the luminance value of the video signal to be supplied to the television 1 by the main controller 213 may be made smaller than usual to supply the video signal to the television 1.
- the TV 1 further does not include the physical address of the mobile phone terminal 2 in the argument of the ⁇ Report Display Source Info> command in the following cases. Also good.
- the television 1 may include a movie mode suitable for displaying a movie, a video game mode suitable for displaying a game, and other modes as image quality adjustment modes.
- Info> command is received from the cellular phone terminal 2 in the state set to the predetermined mode, the physical address of the cellular phone terminal 2 is not included in the argument of the ⁇ Report
- the mobile phone terminal 2 sends a ⁇ Request
- a video signal smaller than usual is supplied to the television 1.
- the brightness of the video displayed on the television 1 is reduced, so that the power consumption of the television 1 can be reduced, and the viewer (for example, the video game mode is set by setting the image quality adjustment mode to the video game mode). Protecting the eyes of children).
- the mobile phone terminal 2 when the mobile phone terminal 2 receives the broadcast content of the one-segment broadcasting from the DTV unit 224, the mobile phone terminal 2 refers to the genre information included in the broadcast content data, and the genre information is “news”, “weather forecast”, “anime”, etc.
- the predetermined genre is set, the luminance value of the video signal to be supplied to the television 1 may be made smaller than usual.
- the output control unit 2131 stops the processing of the TMDS transmitter 251, but the output control unit 2131 The entire HDMI transmitter 200 including 251 may be stopped.
- the system 10 ′ even if the video supplied from the mobile phone terminal 2 to the television 1 is displayed on the LCD 110, the physical address of the mobile phone terminal 2 may be set to ⁇ Report depending on the surroundings of the television 1.
- the system 10 ′ has the further advantage that the user can control the wasteful power consumption of the mobile phone terminal 2 by operating the remote control application. become.
- the physical address of the source device that is the video signal supply source is the argument of the ⁇ Report ⁇ Display Source Info> command.
- the television 1 is configured not to be included in the following situation, the following situation is assumed. That is, in the system 10 ′, the mobile phone terminal 2 supplies a video signal to the television 1 even though no one is in the room where the television 1 is installed, and the portable information terminal 5 is used. It is assumed that the user is in a different room.
- the mobile phone terminal 2 when the user gives an instruction to the mobile phone terminal 2 to acquire display source information from the TV 1 using the remote control application, the mobile phone terminal 2 receives from the TV 1 ⁇ Report Display Source The Info> command does not include the physical address of the mobile phone terminal 2. Therefore, the mobile phone terminal 2 stops supplying the video signal to the television 1 or reduces the luminance value of the supplied video signal. Therefore, even if the user is in a room different from the room where the television 1 is installed, it can be said that useless power consumption of the television 1 can be suppressed using the remote control application.
- the television 1 includes the human sensor 121 and the illuminance sensor 122.
- the human sensor 121, the illuminance sensor 122, and the like may be sensors outside the television 1.
- the television 1 may be provided with a sensor input terminal (not shown) so that sensor signals from the human sensor 121, the illuminance sensor 122, and the like are input to the television 1 from the sensor input terminal.
- the mobile telephone terminal 2 was shown as one Embodiment of the reproducing
- each block of the mobile phone terminal 2 may be realized in hardware by a logic circuit formed on an integrated circuit (IC chip), or the main controller 213 is configured using a CPU (Central Processing Unit). It may be realized by software.
- IC chip integrated circuit
- CPU Central Processing Unit
- the mobile phone terminal 2 includes a CPU that executes instructions of a program that implements each function of the main controller 213, a ROM (Read Only Memory) that stores the program, and a RAM (Random Access Memory) that expands the program. And a storage device (recording medium) such as a memory for storing the program and various data.
- An object of the present invention is to provide a recording medium in which a program code (execution format program, intermediate code program, source program) of a control program for the mobile phone terminal 2 which is software for realizing the above-described functions is recorded so as to be readable by a computer. This can also be achieved by supplying the mobile phone terminal 2 and reading and executing the program code recorded on the recording medium by the computer (or CPU or MPU).
- Examples of the recording medium include tapes such as magnetic tapes and cassette tapes, magnetic disks such as floppy (registered trademark) disks / hard disks, and disks including optical disks such as CD-ROM / MO / MD / DVD / CD-R.
- IC cards including memory cards
- semiconductor memories such as mask ROM / EPROM / EEPROM / flash ROM, or PLD (Programmable logic device) or FPGA (Field Programmable Gate Array) Logic circuits can be used.
- the mobile phone terminal 2 may be configured to be connectable to a communication network, and the program code may be supplied via the communication network.
- the communication network is not particularly limited as long as it can transmit the program code.
- the Internet intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network (Virtual Private Network), telephone line network, mobile communication network, satellite communication network, etc. can be used.
- the transmission medium constituting the communication network may be any medium that can transmit the program code, and is not limited to a specific configuration or type.
- wired lines such as IEEE 1394, USB, power line carrier, cable TV line, telephone line, ADSL (Asymmetric Digital Subscriber Line) line, infrared rays such as IrDA and remote control, Bluetooth (registered trademark), IEEE 802.11 wireless, HDR ( It can also be used by wireless such as High Data Rate, NFC (Near Field Communication), DLNA (Digital Living Network Alliance), mobile phone network, satellite line, terrestrial digital network.
- wired lines such as IEEE 1394, USB, power line carrier, cable TV line, telephone line, ADSL (Asymmetric Digital Subscriber Line) line, infrared rays such as IrDA and remote control, Bluetooth (registered trademark), IEEE 802.11 wireless, HDR ( It can also be used by wireless such as High Data Rate, NFC (Near Field Communication), DLNA (Digital Living Network Alliance), mobile phone network, satellite line, terrestrial digital network.
- the playback device stops the video supply unit from supplying the video to the display device when the information is returned by an instruction from the instruction means.
- the video supply unit stops supplying the video to the display device. To do.
- the playback apparatus further includes a power source that supplies operating power required to operate the video supply unit, and a power supply control unit that controls supply of power by the power source, When the information is returned by an instruction from the means, it is preferable that the power supply control means performs control so that the operating power is not supplied from the power source to the video supply unit.
- the power supply control unit performs the operation from the power source to the video supply unit. Control so that power is not supplied.
- the power source is a rechargeable battery
- the display device passes a signal line through which the video supplied by the video supply unit passes and an instruction command representing an instruction by the instruction means.
- the rechargeable battery is connected by a cable including a signal line and a signal line to which power is supplied from the display device to the playback device, and the rechargeable battery is connected by the power supplied from the display device through the signal line. It is desirable to further include a charging circuit for charging.
- regenerating apparatus will be able to charge a rechargeable battery, even if it is not connected to commercial power supply, if electric power is supplied via the signal line of the cable from the display apparatus. Play.
- the display device can recognize that there is a person around, and the instruction to the display device by the instruction means is that the display device has a person around. It is desirable for the instruction to return the above information even if the information is not recognized.
- the reproducing device has an additional effect that it can recognize that there is no viewer who appreciates the video supplied to the display device around the display device.
- the display device can detect ambient illuminance, and the instruction to the display device by the instruction means is that the display device detects illuminance equal to or higher than a predetermined threshold. Even in this case, it is desirable that the instruction returns the above information.
- the reproducing device has an additional effect that it can recognize that when the surroundings of the display device are very bright.
- the display device displays a display control unit that displays the video supplied from the playback device on the display unit, and whether or not the video is displayed on the display unit.
- the determination unit determines that the video is not displayed on the display unit, information indicating that the video is not displayed is transmitted to the playback apparatus that has supplied the video. And transmitting means.
- the display device when the display device does not display the playback video supplied from the playback device, the display device can cause the playback device to recognize that it is not displayed. Play.
- the said display apparatus can be used as a television receiver provided with each means of the said display apparatus.
- the present invention is a system including the playback device and the display device, wherein the playback device and the display device represent a video supplied by the video supply unit and an instruction by the instruction means. It can also be realized as a system connected so that the instruction command and the above information can be transmitted.
- the system according to the present invention includes a plurality of the playback devices, and the display device returns identification information identifying each playback device as the information to the playback device that has transmitted the instruction command.
- the identification information returned by the display device is preferably identification information of a playback device that has supplied the display device with the video displayed on the display device.
- the playback device when the display device displays the video supplied from the playback device that has transmitted the instruction command, the playback device identifies the playback device. The identification information will be returned.
- the system determines whether or not the display device displays the video supplied to the display device by determining whether or not the identification information includes its own identification information. There is an additional effect that can be recognized.
- the display device includes maker identification means for identifying the manufacturer of the playback device that has transmitted the instruction command, and the display device includes the manufacturer if the playback device manufacturer is a specific manufacturer. It is desirable to return the information to the playback apparatus only when the identification means identifies it.
- the system has an additional effect that only the playback device of a specific manufacturer can recognize that the display device does not display the supplied video.
- a program for operating the playback device according to the present invention which is a program that causes a computer to function as each of the above-described means, and a computer-readable recording medium on which the program is recorded It is included in the category of the present invention.
- the playback device according to the present invention can be used for general source devices that output video to a sink device.
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Abstract
Description
テレビ1と携帯電話端末2とを含むシステム10の構成について、図3を参照して説明する。図3は、システム10の構成を示す図である。
次に、本実施形態に係る携帯電話端末2の構成について、図1を参照して説明する。図1は、携帯電話端末2の構成を示すブロック図である。
次に、本実施形態に係るテレビ1の構成について、図5を参照して説明する。図5は、テレビ1の構成を示すブロック図である。
次に、図2を参照して、テレビ1が備えているHDMIレシーバ100と、携帯電話端末2が備えているHDMIトランスミッタ200と共に、携帯電話端末2が備えているメインコントローラ213についてもう少し詳しく説明する。図2は、携帯電話端末2のメインコントローラ213およびHDMIトランスミッタ200の構成、並びに、テレビ1が備えているHDMIレシーバ100の構成を示すブロック図である。
HDMIトランスミッタ200は、TMDSトランスミッタ251、CEC・I/F252、DDC・I/F253、HPD検知部254、及び、5V電力制御部255を備えている。HDMIトランスミッタ200の各部はメインコントローラ213によって制御される。
メインコントローラ213は、出力制御部2131、外部出力データ生成部2132、および内部出力データ生成部2133を備えている。
次に、携帯電話端末2との有機的な連携動作を実現するために、テレビ1のCPU118が有する機能について、図6を参照して説明する。図6は、テレビ1のCPU118が有する機能を表現した機能ブロック図である。なお、図6に示すブロック図は、CPU118が有する各種機能の一部を表現したものであり、CPU118が、図6に示されていない機能を有していてもよいことは言うまでもない。
ソース機器とのHDMI接続が確立されたときに、テレビ1(アドレス取得部301、デバイスタイプ取得部302、管理テーブル更新部303)にて実行される管理テーブル更新処理について、図8を参照して説明する。図8は、テレビ1にて実行される管理テーブル更新処理の流れを示すフローチャートである。図8に示すフローチャートに含まれる各ステップについて順に説明すれば以下のとおりである。
次に、<Active Source>コマンドに対する応答としてではなく<Set Stream Path>コマンドをテレビ1から受信した場合における携帯電話端末2の動作について図9を参照しながら以下に説明する。
次に、テレビ1、携帯電話端末2、およびBDプレーヤ30からなる図3(b)に示すシステム10全体の動作例について図11のシーケンス図を参照しながら説明する。図中において[ケータイ][プレーヤ]は、それぞれ、コマンドの引数に含まれる携帯電話端末2、BDプレーヤ30の物理アドレスを示している。
(1)テレビ1の入力ソースを携帯電話端末2からBDプレーヤ30に切り替えることにより、図10上段の図のようにBDプレーヤ30からの映像を表示する操作。
(2)テレビ1の入力ソースをBDプレーヤ30から携帯電話端末2に切り替えることにより、図10下段の図のように携帯電話端末2からの映像を表示する操作。
図3(b)に示すシステム10のうちテレビ1をテレビ1’に置き換えたシステム(以下、「変形例に係るシステム」と称する)について図12を参照しながら説明する。テレビ1’は、異なる2つの入力ソースからの映像をLCD110の左画面と右画面とに同時に表示することを可能にする2画面表示機能を備えている。また、図12は、テレビ1’の構成を示すブロック図である。
(1)テレビ1の左画面の入力ソースをBDプレーヤ30からチューナ103に切り替えることにより、図10中段の図のようにテレビ1の左画面にテレビ放送の映像を表示する操作。
(2)テレビ1の右画面の入力ソースを携帯電話端末2からBDプレーヤ30に切り替えることにより、図10下段の図のようにテレビ1の右画面のBDプレーヤ30からの映像を表示する操作。
携帯電話端末2がテレビ1に供給する映像がテレビ1に表示されていない場合、携帯電話端末2では外部出力データ生成部2132およびTMDSトランスミッタ251が処理を停止するものとしたが、携帯電話端末2は、これに加え(あるいは、これに代えて)、他の処理、例えば、以下の(a)および/または(b)の処理を行っても良い。
以上のように、携帯電話端末2は、メインコントローラ213が再生した映像をテレビ1に供給するTMDSトランスミッタ251(映像供給部)と、TMDSトランスミッタ251がテレビ1に供給した映像をテレビ1がLCD110に表示していない場合にその旨を示す情報を、引数に携帯電話端末2の物理アドレスを含まないReport・Display・Source・Infoコマンドとして返却するようテレビ1に指示する出力制御部2131と、を備えている。テレビ1に対する出力制御部2131(指示手段)の指示は、Request・Display・Source・Infoコマンドにより行う。
テレビ1は、上述したようにリモコンを用いて操作してもよいが、スマートフォンやタブレット型PC等の携帯型情報端末を用いて操作してもよい。
なお、上記実施形態において、テレビ1は、<Request Display Source Info>コマンドを受け付けると、該コマンドの送信元に<Report Display Source Info>コマンドを返却するものと説明した。ただし、テレビ1は必ずしも<Report Display Source Info>コマンドを返却しなくてもよい。すなわち、テレビ1の表示ソース情報供給部305は、<Request Display Source Info>コマンドの引数に格納されている物理アドレスを参照し、RAM117の管理テーブル上で、参照した物理アドレスと関連づけられているデバイスタイプが「Mobile Phone」である場合に限り、<Report Display Source Info>コマンドを送信元に返却してもよい。
109 LCDコントローラ(表示制御手段)
110 LCD(表示部)
118 CPU
301 アドレス取得部
302 デバイスタイプ取得部
303 管理テーブル更新部
304 入力ソース選択部
305 表示ソース情報供給部(判定手段)
2 携帯電話端末(再生装置)
21 HDMI出力端子
22 電源端子
200 HDMIトランスミッタ
201 マイクロUSB端子
202 マイクロUSB・I/F
203 Bluetooth・I/F
204 WLAN・I/F
205 メモリカード
206 USIMカード
207 GPS
211 RF部
212 音声CODEC
213 メインコントローラ
2131 出力制御部(指示手段、給電制御手段)
2132 外部出力データ生成部
2133 内部出力データ生成部
214 RTC部
215 キースキャン部
216 充電回路
217 電源レギュレータ
218 電源残量検出部
219 電池(電力源)
220 LCDコントローラ
221 LCD
222 タッチパネル
223 カメラ
224 DTV部
225 FLASHメモリ
226 RAM
227 スピーカ
251 TMDSトランスミッタ(映像供給部)
252 CEC・I/F
253 DDC・I/F
254 HPD検知部
255 5V電力制御部
30 BDプレーヤ(再生装置)
Claims (14)
- 再生した映像を表示装置に供給する映像供給部と、
上記映像供給部が供給した映像を上記表示装置が表示していない場合にその旨を示す情報を返却するよう、上記表示装置に指示する指示手段と、を備えていることを特徴とする再生装置。 - 上記指示手段による指示により上記情報が返却された場合、上記映像供給部が上記映像を上記表示装置に供給するのを停止することを特徴とする請求項1に記載の再生装置。
- 請求項2に記載の再生装置であって、
上記映像供給部を動作させるために要する動作電力を供給する電力源と、上記電力源による電力の供給を制御する給電制御手段と、を更に備え、
上記指示手段による指示により上記情報が返却された場合、上記給電制御手段は、上記電力源から上記映像供給部に上記動作電力が供給されないよう制御することを特徴とする再生装置。 - 請求項3に記載の再生装置であって、
上記電力源は充電池であり、
上記表示装置とは、上記映像供給部が供給する映像が通過する信号線と、上記指示手段による指示を表わす指示コマンドが通過する信号線と、上記表示装置から当該再生装置に電力が供給される信号線と、を含むケーブルにより接続されており、
上記表示装置から上記信号線を介して供給される上記電力により上記充電池を充電する充電回路をさらに備えていることを特徴とする再生装置。 - 請求項1から4のいずれか1項に記載の再生装置であって、
上記表示装置は周囲に人が存在することを認識可能になっており、
上記指示手段の上記表示装置に対する指示は、上記表示装置が周囲に人が存在することを認識していない場合にも上記情報を返却するような指示であることを特徴とする再生装置。 - 請求項1から5のいずれか1項に記載の再生装置であって、
上記表示装置は周囲の照度を検知することが可能になっており、
上記指示手段の上記表示装置に対する指示は、上記表示装置が所定の閾値以上の照度を検知した場合にも上記情報を返却するような指示であることを特徴とする再生装置。 - 再生装置から供給された映像を表示部に表示する表示制御手段と、
上記映像が上記表示部に表示されているか否かを判定する判定手段と、
上記映像が上記表示部に表示されていないと上記判定手段が判定した場合に、当該映像を供給した再生装置に対し、当該映像が表示されていない旨を示す情報を送信する送信手段と、を備えていることを特徴とする表示装置。 - 請求項7に記載の表示装置が備える各手段を備えていることを特徴とするテレビジョン受像機。
- 請求項1から6のいずれか1項に記載の再生装置と、上記表示装置と、を含むシステムであって、
上記再生装置と上記表示装置とは、上記映像供給部が供給する映像と、上記指示手段による指示を表わす指示コマンドと、上記情報と、を伝送可能なように接続されていることを特徴とするシステム。 - 請求項9に記載のシステムであって、
複数の上記再生装置を含み、
上記表示装置は、上記指示コマンドを送信した再生装置に対して、上記情報として各再生装置を識別する識別情報を返却するようになっており、
上記表示装置が返却する上記識別情報は、上記表示装置が表示している映像を上記表示装置に供給した再生装置の識別情報であることを特徴とするシステム。 - 請求項9に記載のシステムであって、
上記表示装置は、上記指示コマンドを送信した再生装置のメーカーを識別するメーカー識別手段を備え、
上記表示装置は、当該再生装置のメーカーが特定のメーカーであると上記メーカー識別手段が識別した場合に限り、上記情報を当該再生装置に返却することを特徴とするシステム。 - 映像を再生する再生装置が上記映像を表示する表示装置の状態を認識する認識方法であって、
再生した映像を上記表示装置に供給する映像供給工程と、
上記映像供給工程にて供給された映像を上記表示装置が表示していない場合にその旨を示す情報を返却するよう、上記表示装置に指示する指示工程と、を含んでいることを特徴とする認識方法。 - コンピュータを請求項1から6までの何れか1項に記載の再生装置として動作させるためのプログラムであって、上記コンピュータを上記再生装置が備えている上記各手段として機能させるプログラム。
- 請求項13に記載のプログラムが記録されたコンピュータ読み取り可能な記録媒体。
Priority Applications (4)
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US13/698,210 US20130057774A1 (en) | 2010-05-19 | 2011-05-19 | Reproduction device, display device, television receiver, system, recognition method, program, and recording medium |
CN2011800244621A CN102893599B (zh) | 2010-05-19 | 2011-05-19 | 重放装置、显示装置、电视接收机、系统、识别方法、程序及记录介质 |
MX2012013253A MX2012013253A (es) | 2010-05-19 | 2011-05-19 | Dispositivo de reproduccion, dispositivo de vizualizacion, receptor de television, sistema, metodo de reconocimiento, programa y medio de grabacion. |
EP11783634.6A EP2574044A4 (en) | 2010-05-19 | 2011-05-19 | PLAYING DEVICE, DISPLAY DEVICE, TELEVISION RECEIVER, SYSTEM, RECEIVING METHOD, PROGRAM AND RECORDING MEDIUM |
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JP2011112795A JP4834187B1 (ja) | 2010-05-19 | 2011-05-19 | 再生装置、表示装置、テレビジョン受像機、システム、認識方法、プログラム、及び、記録媒体 |
JP2011-112795 | 2011-05-19 |
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US (1) | US20130057774A1 (ja) |
EP (1) | EP2574044A4 (ja) |
JP (1) | JP4834187B1 (ja) |
CN (1) | CN102893599B (ja) |
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EP2800389A4 (en) * | 2011-12-28 | 2015-07-15 | Huizhou Tcl Mobile Comm Co Ltd | USER INTERFACE SYSTEM AND METHOD FOR INTERACTION BETWEEN A PORTABLE DEVICE AND A TELEVISION |
CN108322798A (zh) * | 2018-02-05 | 2018-07-24 | 深圳市兆驰股份有限公司 | 一种cec总线监控设备 |
CN108322798B (zh) * | 2018-02-05 | 2020-05-22 | 深圳市兆驰股份有限公司 | 一种cec总线监控设备 |
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CN102893599A (zh) | 2013-01-23 |
MX2012013253A (es) | 2013-01-24 |
EP2574044A4 (en) | 2013-04-24 |
US20130057774A1 (en) | 2013-03-07 |
JP2012005115A (ja) | 2012-01-05 |
JP4834187B1 (ja) | 2011-12-14 |
EP2574044A1 (en) | 2013-03-27 |
CN102893599B (zh) | 2013-11-06 |
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