WO2005015901A1 - テレビジョン受像機、及び外部機器 - Google Patents
テレビジョン受像機、及び外部機器 Download PDFInfo
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- WO2005015901A1 WO2005015901A1 PCT/JP2004/011791 JP2004011791W WO2005015901A1 WO 2005015901 A1 WO2005015901 A1 WO 2005015901A1 JP 2004011791 W JP2004011791 W JP 2004011791W WO 2005015901 A1 WO2005015901 A1 WO 2005015901A1
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- Prior art keywords
- line
- television receiver
- external device
- command
- analog
- Prior art date
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- 230000005540 biological transmission Effects 0.000 claims abstract description 105
- 238000012544 monitoring process Methods 0.000 claims description 13
- 230000005236 sound signal Effects 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 21
- 238000001514 detection method Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 8
- GJWAPAVRQYYSTK-UHFFFAOYSA-N [(dimethyl-$l^{3}-silanyl)amino]-dimethylsilicon Chemical group C[Si](C)N[Si](C)C GJWAPAVRQYYSTK-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40052—High-speed IEEE 1394 serial bus
- H04L12/40117—Interconnection of audio or video/imaging devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/64—Hybrid switching systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4135—Peripherals receiving signals from specially adapted client devices external recorder
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/43622—Interfacing an external recording device
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
- H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
- H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
- H04N21/43635—HDMI
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
- H04N5/775—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television receiver
Definitions
- the present invention relates to a television receiver and an external device connected to the television receiver via an IEEE1394 line.
- IEEE 1394 is a digital interface that allows digital AV devices to be connected to each other. With this, AV devices establish a network and exchange AV streams with each other. be able to.
- FIG. 11 shows a schematic configuration of a television receiver (TV) provided with such IE 1394.
- the TV shown in FIG. 11 includes a receiving unit 10 for receiving user input information, a control unit 20 for controlling each functional block according to the input information, and an IZF unit for exchanging data with external devices.
- Switching means 40 for switching the data output path from the IZF unit 30 to the signal processing means 50; signal processing means 50 for performing predetermined processing on data received from the external device; And display output means 60 for displaying and outputting the data subjected to the predetermined processing.
- control means 20 issues various setting instructions according to input information from the user, and switches according to the instructions of the setting means 21 for storing the setting information and the setting means 21.
- a selector control means 22 for outputting a signal for outputting a signal
- display output control means 24 for controlling the instructions from the user, and switches according to the instructions of the setting means 21 for storing the setting information and the setting means 21.
- a selector control means 22 for outputting a signal
- a signal processing control means 23 for outputting a signal processing control signal in accordance with the instruction of the setting means 21, and a display output control signal in accordance with the instruction of the setting means 21
- display output control means 24 for outputting a signal
- a signal processing control means 23 for outputting a signal processing control signal in accordance with the instruction of the setting means 21
- display output control means 24 for out
- the IZF section 30 is connected to up to five external devices and analog It has analog input terminals 31, 32, 33, 35, and 37 that can be connected, and IEEE 1394 terminals 34 and 36 that can be digitally connected to up to two external devices.
- These analog input terminals 31, 32, 33, 35, and 37 are “Video 1”, “Video 2”, “Component video 1”, “Component video 2”, “Component video 3” on the OSD display screen, respectively. Is displayed in the item.
- FIG. 1 The schematic configuration of the external device connected to the TV is shown in FIG.
- the external device shown in FIG. 13 stores receiving means 71 for receiving an instruction from the user, an IZF unit 75 for exchanging data with a TV and other external devices, and data received via the IZF unit 75.
- a signal processing unit 74 for performing predetermined processing on data received via the I / F unit 75 or data stored in the storage unit 72, and according to an instruction from a user.
- Control means 73 for controlling each function block is provided.
- Examples of the external device include a recording / playback device such as a VTR and a DVHS.
- the external device When the user instructs the desired external device to reproduce data using a remote controller or the like dedicated to the external device, the external device reads out the data stored in the storage means 72 and the signal processing means 7 And transmits it to the TV via the IZF unit 75 as playback data.
- the signal processing means 50 performs predetermined processing, and then the display output means 60 outputs the display data. I do.
- the conventional TV receives the reproduction data via the IEEE 1394 line.
- This IEEE 1394 line can transmit compressed streams such as video and audio in packets, but for example, OSD (On Screen Display) data such as DVHS operation menus are transmitted as a compressed stream using IEEE 13984. To do Have difficulty. Therefore, when such an OSD menu is transmitted from the DVHS to the TV, it is necessary to switch from the IEEE 1394 line to the analog line by the switching means 40 on the TV side.
- external devices connected via the IEEE 1394 line can be automatically recognized when they are connected via the IEEE 1394 line, but they can be automatically recognized via the analog video signal input terminal.
- the external device cannot be automatically recognized, so the IEEE 1394 line and analog line used for the external device must be connected to the external device.
- the user had to operate a remote controller or the like in advance to make analog connection settings for the TV to recognize an external device connected via the analog line.
- the user displays the analog connection setting initial screen as shown in FIG. 15 (a) on the OSD.
- the TV automatically recognizes all external devices connected via the IEEE 1394 line, including those connected in a daisy chain, and displays the OSD.
- the analog connection setting has not been made, so the items ⁇ DVHS 1 '', ⁇ DVHS 2 '', and ⁇ DVHS 3 '' indicate the state where the analog connection setting is not made. Is displayed.
- the user operates the remote controller or the like to sequentially switch the items indicating the state of the analog connection setting as shown in FIG. 15 (c), and perform the analog connection setting. That is, since the DVHS 1 is connected to the analog input terminal 33 via an analog line, “Component Video 1” is selected for the item “DVHS 1”. Since DVHS 2 is connected to the analog input terminal 35 via an analog line, select “Component Video 2” for the item “D VHS 2”. DVHS 3 is connected to the analog input terminal 37 via an analog line, so select “Component Video 3” for the item “DVHS 3”.
- the OSD display screen shown in Fig. 15 (b) is displayed, and the user ends the analog connection setting.
- the switching unit 40 automatically switches to the IEEE 1394 when the playback video of DVHS is switched from digital to analog. Switching from line to analog line allows the user to watch continuously.
- JP-A-2002-185874 A solution to such a problem is disclosed in JP-A-2002-185874.
- a transmission command for controlling the power of an external device to be turned on from the TV side via the IEEE 1394 terminal is output, and a synchronization signal of the analog video signal returned from the external device is output at the analog input terminal. It describes a technology that can detect which analog input terminal is connected to which external device by detecting it, and automatically perform analog connection settings.
- the above analog connection setting took some time from the start to the end of the setting.
- the microcomputer system power is turned on, and when the power supply of each circuit block is commanded, the signal processing system power is turned on. . After that, it takes time from receiving the power-on instruction to outputting the synchronization signal to output the synchronization signal to the TV side. As a result, the time required to set up the analog connection is prolonged, during which time the user has to wait.
- the analog connection terminal is identified by detecting the synchronization signal. Therefore, when multiple external devices are connected, multiple external devices are connected. All analog connection settings could not be made at the same time. In addition, external devices that are daisy-chained with IEEE1394 lines must be manually set by the user, as in the past.
- the present invention has been made in order to solve the above problems, and can perform analog / digital connection setting automatically and in a short time with a simple circuit configuration, thereby greatly improving user operability. It is an object to provide a television receiver and an external device that can be operated. Disclosure of the invention
- the television receiver according to claim 1 of the present invention is a television receiver in which a plurality of external devices are connected via an IEEE1394 line and an analog line, respectively.
- Command transmitting means for sequentially transmitting the same transmission command to each of the external devices via the IEEE1394 line connected to the external device; and the external device is issued in response to each of the transmission commands.
- the analog line used to transmit the response command is identified by monitoring the DC level of the analog video signal input terminal or analog audio signal input terminal connected to each of the above analog lines.
- Switching control means for automatically switching the used IEEE 1394 line and analog line in accordance with the operation of each of the above external devices. It is.
- the television receiver according to claim 2 of the present invention is a television receiver in which a plurality of external devices are connected via an IEEE 1394 line and an analog line, respectively.
- Command transmission means for transmitting, to the plurality of external devices, transmission commands having different characteristics for each of the external devices via an IEEE1394 line connected to the external devices; Identify the analog line used for transmitting the response command issued in response to each of the above transmission commands from the device, and replace the IEEE1394 line and the analog line used for each external device with the above.
- Switching control means for automatically switching according to the operation of each external device.
- the analog connection setting of all the external devices including the daisy chain connected external devices can be performed at once in a short time, and the operability of the user is improved.
- the television receiver according to claim 3 of the present invention is the television receiver according to claim 1, wherein the transmission command is to turn on power to the external device. Or, it is characterized by being interrupted or repeated.
- the television receiver according to claim 4 of the present invention is the television receiver according to claim 2, wherein the transmission command is to turn on power to the external device.
- the command transmission means transmits a transmission command having a different on time or onZ off control count for each external device.
- the television receiver described in claim 5 of the present invention is characterized in that: 3.
- the terminal to which each of the analog lines is connected is an analog video signal input terminal or an analog audio signal input terminal.
- the television receiver according to claim 6 of the present invention is the television receiver according to claim 5, wherein the switching control means includes the analog video signal input terminal, Alternatively, the analog line is identified by monitoring the DC level of the analog audio signal input terminal.
- the external device is a television receiver connected via an IEEE1394 line and a digital line
- a command transmission means for transmitting a transmission command to the device via the IEEE1394 line, and a digital line used for transmitting a response command issued in response to the transmission command from the external device are identified.
- the television receiver according to claim 8 of the present invention is a television receiver in which a plurality of external devices are connected via an IEEE1394 line and a digital line, respectively.
- Command transmission means for sequentially transmitting the same transmission command to each of the plurality of external devices via the IEEE1394 line connected to the external device, and responding to each of the transmission commands from each of the external devices
- Issued Switching control means for identifying the digital line used for transmitting the response command, and switching the IEEE 1394 line used for each of the above external devices and the digital line according to the operation of each of the above external devices; , And.
- the television receiver according to claim 9 of the present invention is a television receiver in which a plurality of external devices are connected via an IEEE1394 line and a digital line, respectively.
- Command transmission means for transmitting, to the plurality of external devices, transmission commands having different characteristics for each of the external devices via an IEEE1394 line connected to the external devices; Identify the digital line used for transmitting the response command issued in response to each of the above transmission commands from the device, and replace the IEEE 1394 line and digital line used for each external device with the above.
- Switching control means for performing switching in accordance with the operation of each external device.
- the digital connection setting of all the external devices including the daisy chain connected external devices can be performed at once in a short time, and the operability for the user is improved.
- the television receiver according to claim 10 of the present invention is the television receiver according to claim 8, wherein the transmission command is a power supply to the external device. It is characterized by being turned on or off, or repeated.
- the television receiver according to claim 11 of the present invention is the television receiver according to claim 9, wherein the transmission command is a power supply to the external device.
- the on / off or on / off of the number of control is different for each external device.
- the transmission command is transmitted.
- the television receiver according to claim 12 of the present invention is the television receiver according to claim 8 or 9, wherein each of the digital lines is connected.
- the terminal shown is an HDMI terminal.
- the television receiver according to claim 13 of the present invention is the television receiver according to claim 12, wherein the switching control means includes: The above digital line is identified by monitoring the DC level.
- the television receiver according to claim 14 of the present invention is the television receiver according to claim 12, wherein the command transmission means transmits the transmission command by an IEEE standard.
- the switching control means transmits the signal level of the device control signal or the response command of the device control signal, which is transmitted in response to the transmission command from the external device, by transmitting the signal to the external device via the line 1 3 94.
- the digital line is identified.
- the external device is an external device connected to a television receiver via an IEEE1394 line and an analog line, and Detecting means for detecting a transmission command transmitted from the receiver via the IEEE1394 line, and outputting a response command to the transmission command to the television receiver via the analog line. Things. This makes it possible to provide a reproduction system that can automatically perform analog connection settings with a simple circuit configuration.
- the external device described in claim 16 of the present invention is an external device connected to a television receiver via an IEEE1394 line and a digital line, and Detecting means for detecting a transmission command transmitted from the receiver via the IEEE1394 line, and outputting a response command to the transmission command to the television receiver via the digital line; It is a thing.
- FIG. 1 is a diagram showing a television receiver according to a first embodiment of the present invention and external devices connected to the television receiver.
- FIG. 2 is a diagram for explaining an analog connection automatic setting method in the television receiver according to the first embodiment.
- FIG. 3 is a diagram for explaining an analog connection automatic setting method in the television receiver according to the first embodiment.
- FIG. 4 is a diagram showing a television receiver according to a second embodiment of the present invention and external devices connected to the television receiver.
- FIG. 5 is a diagram showing an example for describing a digital connection automatic setting method in the television receiver according to the second embodiment.
- FIG. 6 is a diagram for explaining a digital connection automatic setting method in the television receiver according to the second embodiment.
- FIG. 7 is a block diagram showing a configuration of control means in the television receiver of the present invention.
- FIG. 8 is a block diagram showing a schematic configuration of the external device of the present invention.
- FIG. 9 is a diagram showing a specific example of the television receiver and external devices of the present invention.
- FIG. 10 is a diagram showing a specific example of the television receiver and external devices of the present invention.
- FIG. 11 is a diagram showing a conventional television receiver and external devices connected to the television receiver.
- FIG. 12 is a block diagram showing a configuration of control means in a conventional television receiver.
- FIG. 13 is a block diagram showing a schematic configuration of a conventional external device.
- FIG. 14 is a diagram showing an example of a back panel terminal of a conventional television receiver.
- FIG. 15 (a) is a diagram showing an analog connection setting initial screen displayed when analog connection setting is performed in a conventional television receiver.
- FIG. 15 (b) is a diagram showing an analog connection setting end screen displayed when the analog connection setting is ended in the conventional television receiver.
- FIG. 15 (c) is a diagram showing setting items that are displayed as 0 SD when analog connection setting is performed in a conventional television receiver.
- FIG. 1 is a diagram showing a schematic configuration of a television receiver according to Embodiment 1 of the present invention.
- the television receiver includes a receiving unit 100, a 1 / unit 300, a signal processing unit 500, a display output unit 600, a command transmitting unit 202, and a switching control unit 700. .
- the receiving means 100 receives an instruction from a user.
- the 1 /? Unit 300 exchanges data with an external device.
- the I / F section 300 has component video terminals 301, 303, and 305, which are analog video signal input terminals, and IEEE 1394 terminals 302 and 304.
- DVHS 1a, DVHS 2a, and DVHS 3a are analog-connected to the component video terminals 301, 303, and 305, respectively.
- DVHS la and DVHS 2a are digitally connected to the IEEE 1394 terminals 302 and 304, respectively.
- the above DVHS 2a has a built-in tuner and can receive broadcast waves.
- the DVHS 3a is daisy-chained to the DVHS 1a via the IE EE 1394 line, and the TV can communicate with both the DVHS 1a and the DVHS 3a via the IEEE 1394 terminal 302. is there.
- the signal processing means 500 performs predetermined processing on transmission data received from an external device via the YZF section 300.
- the display output means 600 displays and outputs the data on which the predetermined processing has been performed by the signal processing means 500.
- the command transmission means 202 transmits a transmission command to an external device.
- the switching control means 700 controls an analog input terminal used for transmitting a response command issued in response to the transmission command from an external device, to a DC level of a plurality of analog input terminals of the I / F unit 300. It identifies by monitoring and switches between the IEEE 1394 line and the analog line used for the external device according to the operation of the external device.
- the switching control means 700 includes a control means 200 for controlling each functional block based on the instruction content from the user received by the receiving means 100, and a control means It comprises switching means 400 for switching the data output path.
- FIG. 1 A detailed configuration diagram of the control means 200 is shown in FIG.
- the control means 200 performs setting in accordance with an instruction from the user, and stores setting information 201 for storing setting information, and an analog line used for transmitting a response command issued in response to the transmission command from an external device.
- a display output control means 206 for outputting a display output control signal in accordance with the setting information.
- the setting means 201 instructs the command transmitting means 202 to output a transmission command.
- FIG. 8 is a diagram showing a schematic configuration of an external device connected to the TV of the present invention.
- the external device shown in FIG. 8 includes a receiving unit 701 for receiving an instruction from a user, an I / F unit 705 for exchanging data with a TV and other external devices, and an I / E unit 139.
- Detecting means 706 for detecting a transmission command transmitted from the above, storage means 702 for storing data received via the I / F unit 705, and data received via the I / F unit 705, Alternatively, it is provided with signal processing means 704 for performing predetermined processing on the data stored in the storage means 720, and control means 703 for controlling each functional block in accordance with an instruction from a user.
- External equipment includes digital AV equipment such as DVHS, DVD recorder, Blu-ray Disc recorder (BD recorder).
- DC level fluctuations C1 to C3 occur at the component video terminal 301.
- the DC level fluctuations C1 to C3 are detected by the identification means 203 and binarized, and the DC level fluctuation is turned on / off (hereinafter, on indicates a high DC level, and off indicates a low DC level).
- the number of times and the on time are compared with the above transmission command. As a result of the comparison, when it is determined that the transmission commands A1 to A3 match the binary signals of the DC level fluctuations C1 to C3, the response commands B1 to B3 Recognizes that the component video terminal 301 used for transmission of DV is analog-connected to DVHS 1a.
- the TV transmits the DVHS 2a to the DVHS 2a.
- the same transmission commands A1 to A3 as the I / O terminal via the IEEE 1394 terminal 304 and monitoring the DC level of the component video terminals 301, 303, and 305 to which each analog line is connected Identifies the analog line used to transmit the response commands B1 to B3 issued in response to the transmission commands A1 to A3 from the DVHS 2a, and the component video terminal 303 is connected to the DVHS2a in analog. Recognize that
- the same transmission command A1 to A3 as the transmission command transmitted to the above DVHS 1a is transmitted from the TV side to the DVHS 3a via the IEEE 1394 terminal 302, and each analog line is connected.
- the DVHS 3a transmits the response commands B1 to B3 issued in response to the transmission commands A1 to A3. Then, the component video terminal 305 is identified as being analog-connected to the DV HS 3a.
- the analog connection settings of all the external devices connected via the IEEE 1394 line, including the daisy-chained DVHS 3a, are automatically set.
- the switching means 400 switches the IEEE 1394 line and the analog line used for each of the DVHSs 1a to 3a according to the operation of each of the DVHSs 1a to 3a.
- the above analog lines are connected. Monitor the DC level of the component video terminal, and identify the analog line used to transmit the response command issued in response to each of the above transmission commands from each of the above DVHS 1a to 3a. Since the IEEE 1394 line and analog line used for 3a are automatically switched according to the operation of each DVHS 1a to 3a, the synchronization signal detection circuit which was conventionally required becomes unnecessary, The circuit configuration can be simplified, and the analog connection settings of all external devices connected via the IEEE 1394 line, including external devices connected in a daisy chain, can be set automatically.
- a transmission command may be transmitted.
- the power supply ⁇ / ⁇ ⁇ f commands A1 to A3 shown in FIG. 2 are transmitted as transmission commands, and for the DVHS 2a, as shown in FIG. If the power on time Zoff commands A4 to A6 with different power on times are transmitted as transmission commands, the TV side can use the above transmission command and command for 0 n time of the response command output from each external device.
- FIG. 4 is a diagram showing a configuration of a television receiver according to Embodiment 2 of the present invention.
- the television receiver has a plurality of IEEE 1394 terminals and an analog input terminal. It has an EEE1394 terminal and an HDMI terminal.
- the IZF unit 300 has HDMI terminals 311, 313, and 315-that are digital input terminals, and IEEE 1394 terminals 312 and 314 that are digital terminals.
- a Blu-ray disc recorder (BD recorder) lb, 2b, 3b is connected as an external device.
- the BD recorder 3b is daisy-chained to the BD recorder 1b via an IEEE 1394 line, and can exchange data with both the BD recorder lb and the TV. Therefore, the TV is compatible with both the BD recorder lb and the BD recorder 3b and the IEEE 1394 It is possible to communicate via the Internet.
- the BD recorder 2b has a built-in tuner and can receive broadcast waves.
- the command transmission means 202 of the control means 200 supplies power to the BD recorder 1b via the IEEEE 1 394 terminal 3 12 via the power on / of ⁇ command Al 1 to ⁇ 13 Send.
- the DC level fluctuation on the Hot-Plug-Detect (HP D) line of the HDM I terminal whose power is turned on / off by receiving the power on / off command A 1 1 to ⁇ 13 above B 11 to B13 are generated, and these DC level fluctuations Bl1 to B13 are transmitted to the TV side as response commands via the HDMI line.
- DC level fluctuations C11 to (13 occur at the HDMI terminal 311. These DC level fluctuations C11 to C13 are generated. , And is binarized by the identification means 203, and the number of on / of times and the on time of the DC level fluctuation are compared with the transmission command. As a result of the comparison, the transmission commands A11 to A13 and the If it is determined that the DC level fluctuations C11 to C13 match the binarized signal, the HDM I terminal 3 1 used to transmit the response commands B11 to B13 1 recognizes that it is digitally connected to BD recorder 1b.
- the same transmission command A 11 to A 13 as the transmission command transmitted to the BD recorder 1 b is transmitted from the TV side to the BD recorder 2 b via the IEEE 394 terminal 3 1 4
- the BD recorder 2b responds to the transmission commands A11 to A13 from the BD recorder 2b. Identifies the HDMI line used for transmitting the response commands B1 to B3 issued by the controller, and recognizes that the HDMI terminal 313 is digitally connected to the BD recorder 2b.
- the same transmission command A 11 to A 13 as the transmission command transmitted to the BD recorder 1 b is transmitted from the TV side to the BD recorder 3 b via the I EEE 1 394 terminal 3 1 2
- the HDMI terminal to which each HDMI line is connected 3 1 1 By monitoring the DC levels of 313 and 315, the HDMI line used for transmitting the response commands B11 to B13 issued in response to the transmission commands A11 to A13 from the BD recorder 3 is identified, It recognizes that the HDMI terminal 315 is digitally connected to the BD recorder 3b.
- the switching means 400 uses the IEEE 1394 line and the HDM I line used for each of the BD recorders 1 b to 3 b for the operation of each of the BD recorders 1 b to 3 b. Switch accordingly. That is, the TV side uses the HDMI line for normal data transmission, and switches to use the IEEE 1394 line for transmitting a stream or the like that cannot be decoded on the BD recorder side.
- Such a playback system that automatically switches between the IEEE 1394 line and the HDMI line according to the operation of an external device can also be used in the following cases.
- this is a case where a user views a pay program that employs a playback charging system.
- an HDD recorder is used as an external device.
- the user Of the program data received by the tuner 901 on the TV 900 side or the tuner 911 on the HDD recorder 910 side, the user records desired program data in an HDD (hard disk drive) 914 as a compressed stream. After that, of the recording data recorded on the HDD 914, data desired by the user to be viewed is read out to the reproduction / charge flag detection circuit 915 in accordance with an instruction from the user. At this time, the playback charge flag detection circuit 915 determines whether or not the playback data to be played is data of a pay program.
- HDD hard disk drive
- the demultiplexing & decoding circuit 916 separates and performs the decoding process.
- the signal is transmitted to the TV 900 via the HDMI line L 1, subjected to predetermined processing by the video-audio signal processing and output device 907, and output and displayed. This allows the user to view desired reproduction data.
- the playback charging flag is detected in the playback data to be played (during playback charging data playback)
- the data is transmitted to the descrambling circuit 904 on the TV 900 side via the IEEE1394 line L2, and the playback charging system compatible IC card is used.
- the descrambling process is performed using 903.
- the demultiplexing and decoding circuit 906 performs a separation / decoding process
- the video / audio signal processing and output device 907 performs a predetermined process to display and output. As a result, the user can view desired reproduction data.
- a terrestrial digital tuner is mounted only on the TV side as shown in Fig. 10.
- a BD recorder is used as an external device.
- the dedicated demultiplexing and decoding circuits 1003 and 1004 respectively.
- the video / audio signal processing and output device 1005 After performing the separation / decode processing, the video / audio signal processing and output device 1005 performs predetermined processing and displays and outputs the data, so that the user can view a desired program.
- the program data received by the BS1000 digital tuner 1001 on the TV 1000 side, the terrestrial digital tuner 1002, or the BSZCS digital tuner 1011 on the external device 1010 is recorded on the DVD 1013, and the DVD 1013 is recorded.
- the broadcast system of the reproduced data read from the DVD 1013 is determined by the broadcast system detection circuit 1014.
- the reproduction data to be reproduced is BS / CS tuner 1001
- the program data is received in 1011, it is separated and decoded by the demultiplexing & decoding circuit 1015, and then transmitted to the TV 1000 side via the HDMI line L4, and the video / audio signal processing and output device 1005 Performs the specified processing with and displays and outputs.
- the user can view desired reproduction data.
- the playback data to be played back is a program received by the terrestrial digital tuner 1002, there is no terrestrial digital-compatible demultiplexing and decoding circuit on the external device 1010 side.
- the external device 1010 automatically switches between the IEEE 1394 line L3 and the HDM I line L4 and transmits it to the TV 1000 according to the playback format of the playback data read from the DVD 1013. Therefore, the data recorded on the DVD 1013 and received by the terrestrial digital tuner and the data received by the BS / CS tuner can be continuously reproduced.
- the terrestrial digital tuner 1002 is mounted only on the TV 1000 side, and when the program data received by the terrestrial digital tuner 1002 is recorded and played back on the external device 1010, the external device 1010 sends A case has been described in which transmission is performed to the TV 1000 via the EEE 1394 line L3 and decoding is performed on the TV 1000, but the present invention is not necessarily limited to this.
- the data may be transmitted unconditionally through the IEEE1394 line.
- the same tuner is mounted on both the TV 1000 and the external device 1010, and after determining in advance which side to decode between the TV 1000 and the external device 1010, the IEEE 1394 The line and the HDMI line may be switched.
- a transmission command is transmitted to the external device via the IEEE 1394 line.
- Send and equip By monitoring the DC level of all HDMI terminals 311, 313, and 315, the HDMI terminal used to transmit the response command issued in response to the transmission command from the external device was identified. Even when external devices are connected in a daisy chain, digital connection settings can be made automatically and in a short time, and user operability can be improved.
- the television receiver according to the second embodiment can reliably recognize the IEEE 1394 line connected to the external device and the HDMI line corresponding to the IEEE 1394 line. For example, when a playback billing system is used, or when stream data in which undecodable data and decodable data are mixed on the external device side is reproduced, the HDMI line and the IEEE 1394 line must be connected. Even when switching is necessary, these switchings can be automatically and reliably switched, and the user can watch without troublesome operation input.
- the television receiver even when a plurality of external devices are connected via the IEEE 1394 line and the HDMI line, the digital setting is performed in the same manner, and each external device is set.
- the IEEE 1394 line and HDMI line used in the system can be automatically switched according to the operation of each external device, thereby improving user operability and providing a stable playback system. be able to.
- a transmission command may be transmitted. Specifically, as shown in FIG. 5, commands A11 to A13 having three power supplies ⁇ ⁇ ⁇ times are transmitted as transmission commands to the BD recorder 1b, and the BD recorder 2b is transmitted. For b, as shown in Fig. 6, if commands Al4 to A15 with power onZoff twice are transmitted, the response command output from each external device on the TV side can be transmitted.
- the case where the DC level of the Hot—: Plug—Detect line of the HDA terminal is detected has been described.
- the DC level fluctuation of the TMDS signal, the presence / absence of the clock of the T MDS clock channel, the device control line The same effect can be obtained by detecting any one of the following DC level fluctuation and the DC level fluctuation of the DDC (I 2 C) line.
- the digital input terminal used for transmitting the response command is identified using the power on / off command as the transmission command / response command.
- the digital input terminal used for transmitting the response command may be identified.
- the TMDS signal, device control signal, DDC (I2C) signal, etc. are used as the specific packet, and the returned Ack signal is the specific video signal of the TMDS signal, the specific pattern of the device control signal, and the DDC (I2C) signal. May be used.
- the television receiver according to the present invention identifies a plurality of external devices by detecting a DC level or the like of an input terminal, and according to the operation of each external device, an IEEE 1394 line, an analog line, or a digital line. This is useful as a television receiver that can automatically switch between lines.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005513044A JP4317851B2 (ja) | 2003-08-11 | 2004-08-11 | テレビジョン受像機、及び外部機器 |
US10/567,738 US20060256241A1 (en) | 2003-08-11 | 2004-08-11 | Television receiver and external devices |
CNB2004800229373A CN100433804C (zh) | 2003-08-11 | 2004-08-11 | 电视接收机和外部设备 |
EP04771752A EP1657916A4 (en) | 2003-08-11 | 2004-08-11 | TELEVISION RECEIVER AND EXTERNAL DEVICES |
KR1020067002783A KR100739929B1 (ko) | 2003-08-11 | 2004-08-11 | 텔레비전 수상기 및 외부 기기 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-291597 | 2003-08-11 | ||
JP2003291597 | 2003-08-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005015901A1 true WO2005015901A1 (ja) | 2005-02-17 |
Family
ID=34131661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/011791 WO2005015901A1 (ja) | 2003-08-11 | 2004-08-11 | テレビジョン受像機、及び外部機器 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20060256241A1 (ja) |
EP (1) | EP1657916A4 (ja) |
JP (1) | JP4317851B2 (ja) |
KR (1) | KR100739929B1 (ja) |
CN (1) | CN100433804C (ja) |
WO (1) | WO2005015901A1 (ja) |
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Also Published As
Publication number | Publication date |
---|---|
KR20060032652A (ko) | 2006-04-17 |
JPWO2005015901A1 (ja) | 2006-10-12 |
JP4317851B2 (ja) | 2009-08-19 |
EP1657916A4 (en) | 2007-10-31 |
EP1657916A1 (en) | 2006-05-17 |
CN100433804C (zh) | 2008-11-12 |
US20060256241A1 (en) | 2006-11-16 |
KR100739929B1 (ko) | 2007-07-16 |
CN1836441A (zh) | 2006-09-20 |
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