CN101536518A - Electronic device, control information transmission method, and control information reception method - Google Patents
Electronic device, control information transmission method, and control information reception method Download PDFInfo
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- CN101536518A CN101536518A CNA2007800414753A CN200780041475A CN101536518A CN 101536518 A CN101536518 A CN 101536518A CN A2007800414753 A CNA2007800414753 A CN A2007800414753A CN 200780041475 A CN200780041475 A CN 200780041475A CN 101536518 A CN101536518 A CN 101536518A
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Abstract
An object of the invention is to permit quick control of the operating state of a source equipment side from sink equipment. A television receiver (sink equipment) 100 and an amplifier (repeater equipment) 200 are interconnected over an HDMI cable 610, and the amplifier 200 and a DVD recorder (source equipment) 300 are interconnected over an HDMI cable 620. Each of the pieces of equipment includes, in addition to an HDMI receiving unit and an HDMI transmitting unit, a high-speed data line I/F included in a bidirectional communication unit that uses predetermined lines of the HDMI cable. The bidirectional communication unit is used to transmit channel selection information, a remote control code instructing recording, 'theater mode' designating information, a remote control code, or the like from the television receiver 100 to the audio amplifier 200 or DVD recorder 300. The operating state of the audio amplifier 200 or DVD recorder 300 can be quickly controlled from the television receiver 100.
Description
Technical field
The present invention relates to adopt electronic installation, control information transmission method and the control information method of reseptance of communication interface (for example, high resolution multimedia interface (HDMI)).More specifically, the present invention relates to comprise the electronic installation of communication unit, this communication unit uses the preset lines that is included in the transmission line to carry out two-way communication, this electronic installation uses this communication unit to come control information transmission to give another electronic installation, so the mode of operation that this electronic installation can another electronic installation of quick control.The present invention relates to comprise the electronic installation of communication unit, this communication unit uses the preset lines that is included in the transmission line to carry out two-way communication, this electronic installation uses this communication unit to receive control information from another electronic installation, therefore this electronic installation allows from another electronic installation side quick control mode of operation based on control information control operation state.
Background technology
In recent years, HDMI is widely popular as communication interface, under this HDMI, digital video signal (that is, compression (base band) vision signal (hereinafter referred to as view data)) and follow the digital audio and video signals (hereinafter referred to as voice data) of this vision signal to be transferred to television receiver, projecting apparatus or any other display (for example referring to patent documentation 1) from for example digital versatile disc (DVD) register, set-top box or any other audiovisual (AV) source.
Between the multiple arrangement that under HDMI, interconnects, realize control under consumer-elcetronics devices control (CEC) standard of in HDMI, stipulating.Yet the CEC standard is finished data structure and the transmission speed that defines into device control by SCART (the syndicatdes constructeurs d ' appareils radiorecepteurs et televiseurs) terminal of simulation model.Therefore, be used for the low as about 400bps of transmission speed of control information, and definition data structure is the transmission of unit so that support with 16 bytes substantially.Therefore, this transmission speed and data structure are unsuitable for requiring the control of high-speed response or the transmission that its length surpasses the control information of 16 bytes.
In patent documentation 2, proposed a kind of technology, wherein transmitted stream (TS) when transmission unit outputs to another video-unit or equipment when the part that receives, separated separately and extract information, be converted into UPnP (UPnP) expression, export from transmission unit then.In patent documentation 3, a kind of device has been proposed, wherein: data and control information transmit between receiving equipment and recording equipment; And the receiving equipment side comprises the processing unit of handling record controls.
Patent documentation 1:JP-A-2006-319503
Patent documentation 2:JP-A-2006-319573
Patent documentation 3:JP-A-2003-209775
Summary of the invention
The problem to be solved in the present invention
The technology of describing in patent documentation 2 does not relate to the control between each device.The technology of describing in patent documentation 3 relates to the control between each device, but does not relate to the control between each device that interconnects under HDMI.
The objective of the invention is to allow the mode of operation of (sink) device quick control source apparatus from the place.
The means of dealing with problems
Design of the present invention is a kind of electronic installation that comprises signal receiving unit, and this signal receiving unit receives the vision signal that sends at transmission line by differential signal from another electronic installation on a plurality of channels.
This electronic installation is characterised in that: described electronic installation also comprises communication unit, and it uses the preset lines that comprises in the described transmission line to carry out two-way communication; And
Described communication unit transmits the control information to described another electronic installation, and this control information is used to control the mode of operation of described another electronic installation side at least.
Electronic installation of the present invention comprises signal receiving unit, and it receives the vision signal that sends at transmission line by differential signal from another electronic installation on a plurality of channels, and is the place device or the transponder set of for example HDMI compatibility.In the present invention, also comprise communication unit, it uses the preset lines that comprises in the described transmission line to carry out two-way communication.Described communication unit is used to transmit the control information to described another electronic installation.In this case, control information can send to another electronic installation fast, and mode of operation that can another electronic installation side of quick control.
In the present invention, for example, can also comprise: the broadcast reception unit, it obtains vision signal on the predetermined channel based on television broadcasting signal; Display unit, it shows the picture of representing by the vision signal of being obtained by described broadcast reception unit; And user operation unit, the user instructs the record of the vision signal relevant with picture displayed on display unit with it.Described communication unit not only can transmit the information of selecting about the channel in the described broadcast reception unit, can also transmit the information about recording instruction of using described user operation unit to carry out.In this case, the channel of selecting in the broadcast reception unit that exists in another electronic installation can switch to the channel relevant with picture displayed on display unit.When carrying out user's recording instruction, the record cell on another electronic installation side can start the record of the vision signal relevant with picture displayed on display unit immediately.
In the present invention, for example can also comprise: the broadcast reception unit, it obtains vision signal and audio signal based on television broadcasting signal; Display unit, it shows the picture of representing by the vision signal of being obtained by described broadcast reception unit; Loud speaker, the sound that its output is represented by the audio signal of being obtained by described broadcast reception unit; And user operation unit, the user comes designated external audio frequency output mode with it, under this external audio output mode, exports by external loudspeaker by the sound that the audio signal of being obtained by described broadcast reception unit is represented.Described communication unit can be fed to the audio signal of being obtained by described broadcast reception unit described another electronic installation, and can transmit the appointed information about described outside output mode of using described user operation unit input.In this case, the audio signal of being obtained by the broadcast reception unit can send to another electronic installation side.Can export by external loudspeaker according to the appointment of user by the sound that the audio signal of being obtained by the broadcast reception unit is represented the external audio output mode.
In the present invention, for example can comprise the remote control signal receiving element, it receives the remote control signal (remote-control code) that sends from the transmitter of remote control signal.Described communication unit can be transferred to described another electronic installation with the remote control signal that is received by described remote control signal receiving element.In this case, when another electronic installation side of user's Long-distance Control, communication unit can send the remote control signal that obtains from Long-distance Control to another electronic installation side.Mode of operation that can another electronic installation side of quick control.
Design of the present invention is a kind of electronic installation, comprises signal transmitting unit, and it sends vision signal to another electronic installation by differential signal on transmission line on a plurality of channels, and this electronic installation also comprises:
Communication unit, it uses the preset lines that comprises in the described transmission line to carry out two-way communication; And
Control unit, it is based on the control information control operation state that is received by described communication unit.
Electronic installation of the present invention comprises signal transmission unit, and it gives another electronic installation by differential signal transmission video signal on transmission line on a plurality of channels, and is the source apparatus or the transponder set of for example HDMI compatibility.In the present invention, comprise communication unit, it uses the preset lines that comprises in the described transmission line to carry out two-way communication.Control unit is based on the control information control operation state that is received by communication unit.In this case, can be from the quick receiving control information of another electronic installation, and allow from another electronic installation side quick control mode of operation.
In the present invention, for example can comprise based on television broadcasting signal and obtain the broadcast reception unit of the vision signal on the predetermined channel and the record cell of the vision signal that record is obtained by described broadcast reception unit.Described control unit can be based on the information about the channel selection that is received by described communication unit, the channel that control is selected by described broadcast reception unit, and can make described record cell will start the record of the vision signal of obtaining by described broadcast reception unit based on the described record cell of the information Control about recording instruction that receives by described communication unit.In this case, the channel of being selected by the broadcast reception unit can switch to and the relevant channel of picture displayed on the display unit of another electronic installation side existence.When another electronic installation side is made user's recording instruction, record cell can start the record of the vision signal of picture displayed on the display unit that is illustrated in another electronic installation side immediately.
In the present invention, for example can also comprise audio output unit, the audio signal that its output is received by described communication unit is to loud speaker.Described control unit can be based on the appointed information control audio output about the external audio output mode that is received by described communication unit, makes quiet in the described audio output unit to change into off status from opening state.In this case, can receive the audio signal that the broadcast reception unit by another electronic installation side obtains.When from another electronic installation side fed user about the appointed information of external audio output mode the time, quiet in the audio output unit changed into off status from opening state.Can realize immediately controlling so that reach such state, wherein the sound represented of the audio signal of obtaining by the broadcast reception unit by another electronic installation side can be exported by external loudspeaker.
In the present invention, for example, control unit can be controlled the action of each unit based on the remote control signal that is received by communication unit.In this case, remote control signal is from the transmission of another electronic installation side, and action that can each unit of quick control.
Advantage of the present invention
According to the present invention, comprise communication unit, it uses the preset lines that comprises in the described transmission line to carry out two-way communication.Described communication unit is used for transmission of control signals and gives another electronic installation.Mode of operation that can another electronic installation of quick control.According to the present invention, comprise communication unit, it uses the preset lines that comprises in the described transmission line to carry out two-way communication.Described communication unit is used for from another electronic installation receiving control information.Based on described control information control operation state.Can be from another electronic installation side quick control mode of operation.
Description of drawings
Fig. 1 is the calcspar that illustrates as the ios dhcp sample configuration IOS DHCP of communication system embodiment, that adopt HDMI;
Fig. 2 is the calcspar that illustrates as the ios dhcp sample configuration IOS DHCP of the television receiver of place device;
Fig. 3 is the figure that the structure of the IP grouping that is used to transmit remote-control code is shown;
Fig. 4 is the calcspar that illustrates as the ios dhcp sample configuration IOS DHCP of the audio frequency amplifier of transponder set;
Fig. 5 is the calcspar that illustrates as the ios dhcp sample configuration IOS DHCP of the DVD register of source apparatus;
Fig. 6 is the calcspar that the arrangement example of HDMI transmission unit (HDMI source) and HDMI receiving element (HDMI place) is shown;
Fig. 7 is the figure that the structure of TMDS transmission data is shown;
Fig. 8 is the figure of pin assignments (type A) that the HDMI terminal is shown;
Fig. 9 is the connection layout of arrangement example that the high-speed data line interface 203a of the high-speed data line interface 103 of television receiver 100 and audio frequency amplifier 200 is shown;
Figure 10 is the figure that is used to illustrate " contact history (one-touch recording) " order of the picture (image) that utilizes DVD register 300 to be recorded in to see on the television receiver 100;
Figure 11 illustrates the figure of " contact history " example, that adopt order as a comparison under the situation that does not comprise the high-speed data line interface;
Figure 12 is the figure that is used to illustrate " theater mode " order of switch audio output between television receiver 100 and audio frequency amplifier 200;
Figure 13 illustrates the figure of " theater mode " example, that adopt order as a comparison under the situation that does not comprise the high-speed data line interface;
Figure 14 is the figure that is used for explanation " Long-distance Control " order; And
Figure 15 illustrates the figure of " Long-distance Control " example, that adopt order as a comparison under the situation that does not comprise the high-speed data line interface.
Describe with reference to label
10: communication system, 100: television receiver, the 101:HDMI terminal, the 102:HDMI receiving element, 103: high-speed data line interface, 200: audio frequency amplifier, 201a, 201b:HDMI terminal, the 202a:HDMI transmission unit, the 202b:HDMI receiving element, 203a, 203b: high-speed data line interface, 300:DVD register, the 301:HDMI terminal, the 302:HDMI transmission unit, 303: high-speed data line interface, 400: reception antenna, 500:5.1 the channel loudspeaker group, 610, the 620:HDMI cable.
Embodiment
With reference to accompanying drawing, below embodiment of the present invention will be described.Fig. 1 shows the ios dhcp sample configuration IOS DHCP as the communication system 10 of embodiment.Communication system 10 comprises the television receiver 100 that is used as the place device, the audio frequency amplifier 200 that is used as transponder set and the DVD register 300 that is used as source apparatus.Television broadcasting reception antenna 400 is connected to television receiver 100 and DVD register 300.5.1 channel loudspeaker group 500 is connected to audio frequency amplifier 200.
Fig. 2 shows the ios dhcp sample configuration IOS DHCP of television receiver 100.Television receiver 100 comprises HDMI terminal 101; HDMI receiving element 102; high-speed data line interface 103; antenna terminal 105; digital tuner 106; demultiplexer 107; Motion Picture Experts Group (MPEG) decoder 108; video processing circuit 109; graphics generation circuit 110; panel drive circuit 111; display floater 112; audio signal processing circuit 113; audio amplifier circuit 114; loud speaker 115; DTCP (DTCP) circuit 116; internal bus 120; CPU (CPU) 121; flash read only memory (ROM) 122; dynamic random access memory (DRAM) 123; Ethernet interface (I/F) 124; network terminal 125; Long-distance Control receiving element 126 and Long-distance Control transmitter 127.
Notice that " Ethernet " is registered trade mark.Digital tuner 106 and demultiplexer 107 constitute the broadcast reception unit.Long-distance Control receiving element 126 and Long-distance Control transmitter 127 constitute user operation unit.
Antenna terminal 105 is input terminals by the television broadcasting signal of reception antenna 400 receptions.Digital tuner 106 is handled the television broadcasting signal that is input to antenna terminal 105, and output is flowed with the predetermined transmission that the channel of user's selection is associated.Demultiplexer 107 extracts part from the transmission stream that is obtained by digital tuner 106 and transmits stream (TS) (the TS grouping of video data and the TS grouping of voice data).
Demultiplexer 107 takes out program information specific/information on services (PSI/SI) from the transmission stream that is obtained by digital tuner 106, and PSI/SI is exported to CPU 121.The transmission stream that is obtained by digital tuner 106 has multiplexed therein a plurality of channels.By obtain information (PAT/PMT) from PSI/SI, allow demultiplexer 107 from transmitting the processing that stream extracts the part TS on any channel about the packet ID on any channel (PID).
Decoding processing is carried out in 108 pairs of video packets elementary streams (PES) groupings that formed by the TS grouping of the video data of demultiplexer 107 acquisitions of mpeg decoder, so that video data is provided.Decoding processing is carried out in 108 pairs of audio frequency PES groupings that formed by the TS grouping of the voice data of demultiplexer 107 acquisitions of mpeg decoder, so that voice data is provided.Mpeg decoder 108 is respectively to carrying out decoding processing by the picture of DTCP circuit 116 deciphering and the PES grouping of sound, so that video data and voice data are provided.
If necessary, 110 pairs of video datas that obtained by mpeg decoder 108 of video processing circuit 109 and graphics generation circuit are carried out multi-screen processing, graph data overlap-add procedure etc.Panel drive circuit 111 drives display floater 112 based on the video data from graphics generation circuit 110 outputs.Display floater 112 is for example formed by LCD (LCD), Plasmia indicating panel (PDP) etc.113 pairs of voice datas that obtained by mpeg decoder 108 of audio signal processing circuit are carried out the processing as the requirement of D/A conversion.Audio amplifier circuit 114 amplifies from the audio signal of audio signal processing circuit 113 outputs, and the signal that obtains is presented to loud speaker 115.
If necessary, DPCP circuit 116 is encrypted the part TS that is extracted by demultiplexer 107.116 deciphering of DPCP circuit are fed to the enciphered data of Ethernet interface 124 from network terminal 125 or high-speed data line interface 103.
The action of each assembly of CPU 121 control television receivers 100.Flash ROM 122 storage Control Software are also preserved data.DRAM 123 is formed for the service area of CPU 121.CPU 121 will be deployed into the DRAM 123 from software or the data that flash ROM 122 reads, activating software, and each assembly of control television receiver 100.Long-distance Control receiving element 126 receives the remote control signal (remote-control code) that sends from Long-distance Control transmitter 127, and this signal is presented to CPU 121.CPU121, flash ROM 122, DRAM 123 and Ethernet interface 124 are by internal bus 120 interconnection.
HDMI receiving element (HDMI place) 102 receives video (image) data and the voice data that is fed to the base band of HDMI terminal 101 by the communication according to HDMI on HDMI cable 610.HDMI receiving element 102 will be described after a while.High-speed data line interface 103 is the bi-directional communication interface that adopt the preset lines (in this embodiment, keeping line and HPD line) that comprises in the HDMI cable 610.High-speed data line interface 103 will be described after a while.
Action in the television receiver shown in Figure 2 100 will briefly be described below.
The television broadcasting signal that is input to antenna terminal 105 is fed to digital tuner 106.Digital tuner 106 is handled television broadcasting signal, and output is flowed with the predetermined transmission that the channel of user's selection is associated.Should predeterminedly transmit stream and be fed to demultiplexer 107.Demultiplexer 107 extracts the part TS (the TS grouping of video data and the TS grouping of voice data) that is associated with the channel of user's selection from this transmission stream.This part TS presents to mpeg decoder 108.
Decoding processing is carried out in 108 pairs of video PES groupings that formed by the TS grouping of video data of mpeg decoder, and video data is provided.If necessary, then this video data experiences multi-screen processing, graph data overlap-add procedure etc. by video processing circuit 109 and graphics generation circuit 110.After this, the video data that obtains is fed to panel drive circuit 111.The image that is associated with the channel of user's selection is presented on the display floater 112.
Decoding processing is carried out in 108 pairs of audio frequency PES groupings that formed by the TS grouping of voice data of mpeg decoder, and voice data is provided.This voice data is by the processing of audio signal processing circuit 113 experience as the requirement of D/A conversion.After being amplified by audio amplifier circuit 114, the voice data that obtains is presented to loud speaker 115.The sound that is associated with the channel of user's selection is by loud speaker 115 outputs.
When received tv broadcast signal, the part TS that is extracted by demultiplexer 107 is encrypted by DTCP circuit 116, and presents to high-speed data line interface 103 via Ethernet interface 124 as the data of transmission.Therefore, this part TS is transferred to audio frequency amplifier 200 on the preset lines of the HDMI cable 610 that is coupled to HDMI terminal 101.
When received tv broadcast signal, if the part TS that is extracted by demultiplexer 107 passes through Network Transmission, then after this part TS was encrypted by DTCP circuit 116, the part TS that obtains outputed to network terminal 125 via Ethernet interface 124.
Long-distance Control receiving element 126 receives the remote-control code (remote control signal) that sends from Long-distance Control transmitter 127.This remote-control code is presented to CPU 121.If this remote-control code relates to the control of television receiver 100, then CPU 121 is based on each assembly of this remote-control code control television receiver 100.
Fig. 3 shows the structure of the IP grouping that comprises remote-control code.This IP grouping comprises IP header, payload and CRC.In the IP grouping that comprises remote-control code, remote-control code is inserted in the payload portions.
Be fed to Ethernet interface 124 from network terminal 125 via high-speed data line interface 103 or present from HDMI terminal 101 part TS to the encryption of ether network interface 124 by 116 deciphering of DTCP circuit after, the part TS of deciphering presents to mpeg decoder 108.The identical action of carrying out when after this, carrying out of action with received tv broadcast signal.Image is presented on the display floater 112, and sound is by loud speaker 115 outputs.
Fig. 4 illustrates the ios dhcp sample configuration IOS DHCP of audio frequency amplifier 200.Audio frequency amplifier 200 comprises that HDMI terminal 201a and 201b, HDMI transmitting element 202a, HDMI receiving element 202b, high-speed data line interface 203a and 203b, mpeg decoder 204, video/graphics treatment circuit 205, audio frequency processing circuit 207, audio amplifier circuit 208, the sub-209a of audio output are to 209e, DTCP circuit 210, Ethernet interface 211, internal bus 212, CPU 213, flash ROM 214 and DRAM 215.
HDMI transmitting element (HDMI source) 202a transmits video (image) data and the voice data of base band by meeting the communication of HDMI from HDMI terminal 201a on HDMI cable 610.HDMI receiving element (HDMI place) 202b is received in video (image) data and the voice data of the base band that is fed to HDMI terminal 201b on the HDMI cable 620 by meeting the communication of HDMI.HDMI transmitting element 202a and HDMI receiving element 202b will describe after a while.
High-speed data line interface 203a is the bi-directional communication interface that adopts the preset lines (in the present embodiment, keeping line and HPD line) that comprises in the HDMI cable 610.High-speed data line interface 203b is the bi-directional communication interface that adopts the preset lines (in the present embodiment, keeping line and HPD line) that comprises in the HDMI cable 620.High-speed data line interface 203a and 203b will describe after a while.
210 deciphering of DTCP circuit are fed to the part TS of the encryption of Ethernet interface 211 via high-speed data line interface 203b.204 pairs of mpeg decoders are carried out decoding processing by the grouping of the audio frequency PES among the part TS of DTCP 210 deciphering, and therefore voice data is provided.
207 pairs of voice datas that obtained by mpeg decoder 204 of audio frequency processing circuit are carried out the processing as the requirement of D/A conversion.Audio amplifier circuit 208 amplify left front audio signal SFL, right front audio signal SFR, in before audio signal SFC, left back audio signal SRL and right back audio signal SRR, and the signal that obtains exported to the sub-209a of audio output, 209b, 209c, 209d and 209e respectively.
Constitute set of speakers 500 left loudspeaker 500a, right front speaker 500b, in before loud speaker 500c, left rear speaker 500d and right rear loudspeakers 500e be connected respectively to the sub-209a of audio output, 209b, 209c, 209d and 209e.
207 pairs of voice datas that obtained by HDMI receiving element 202b of audio frequency processing circuit are carried out the processing that requires, and then the voice data that obtains are presented to HDMI transmitting element 202a.205 pairs of video (image) data that obtained by HDMI receiving element 202b of video/graphics treatment circuit are carried out the processing as the graph data stack, give HDMI transmitting element 202a with the feeds of data that obtains then.
The action of each assembly of CPU 213 control audio amplifiers 200.Flash ROM 214 storage Control Software are also preserved data.DRAM 215 is formed for the service area of CPU 213.CPU 213 will be deployed into the DRAM 215 from software and the data that flash ROM 214 reads, activating software, and each assembly of control audio amplifier 200.CPU 213, flash ROM 214, DRAM 215 and Ethernet interface 211 are by internal bus 212 interconnection.
Action in the audio frequency amplifier shown in Figure 4 200 will briefly be described below.
In HDMI receiving element 202b, obtain video (image) data and the voice data that on HDMI cable 620, send from the DVD register 300 that is connected to HDMI terminal 201b.This video data and voice data are presented to HDMI transmitting element 202a via video/graphics treatment circuit 205 and audio frequency processing circuit 207 respectively, and are transferred to television receiver 100 on the HDMI cable 610 that is coupled to HDMI terminal 201a.
In high-speed data line interface 203a, be received on the preset lines of the HDMI cable 610 that is coupled to HDMI terminal 201a from the part TS of the encryption of television receiver 100 transmission.This part TS presents to DTCP circuit 210 via Ethernet interface 211, thus deciphering.
Part TS by 210 deciphering of DTCP circuit presents to mpeg decoder 204.In mpeg decoder 204, the PES grouping of the voice data that comprises among the part TS is carried out decoding processing so that voice data is provided.This voice data is presented the processing of the requirement of changing to audio frequency processing circuit 207 and experience as D/A.When quiet when being set to off status, be exaggerated and output to respectively the sub-209a of audio output, 209b, 209c, 209d and 209e from various audio signal SFL, SFR, SFC, SRL and the SRR of audio frequency processing circuit 207 outputs.Sound is by set of speakers 500 outputs.
In high-speed data line interface 203, receive the IP grouping that comprises remote-control code and on the preset lines of the HDMI cable 610 that is coupled to HDMI terminal 201a, transmit from television receiver 100.This IP grouping is presented to CPU 213 via Ethernet interface 211.When the remote-control code that comprises in this IP grouping related to the control of audio frequency amplifier 200, CPU 213 was based on each assembly of this remote-control code control audio amplifier 200.For example, when remote-control code represented to specify " theater mode " as the external audio output mode, CPU 213 control audio amplifying circuits 208 quiet made quietly will become off status from opening state.
Receive and present part TS and IP grouping as mentioned above by high-speed data line interface 203a, give high-speed data line interface 203b as the transmission feeds of data to ether network interface 211.This part TS and IP are grouped on the preset lines of the HDMI cable 620 that is coupled to HDMI terminal 201b and are transferred to DVD register 300.
Fig. 5 illustrates the ios dhcp sample configuration IOS DHCP of DVD register 300.DVD register 300 comprises HDMI terminal 301, HDMI transmitting element 302, high-speed data line interface 303, antenna terminal 304, digital tuner 305, demultiplexer 306, internal bus 307, record cell interface 308, DVD/BD driver 309, hard disk drive (HDD) 310, CPU 311, flash ROM 312, DRAM 313, Ethernet interface 314, network terminal 315, DTCP circuit 316, mpeg decoder 317, graphics generation circuit 318, video output terminal 319 and audio output 320, digital tuner 305 and demultiplexer 306 constitute the broadcast reception unit.
HDMI transmitting element (HDMI source) 302 transmits video (image) data and the voice data of base band by meeting the communication of HDMI from HDMI terminal 301 on HDMI cable 620.HDMI receiving element 302 will be described after a while.
High-speed data line interface 303 is the bi-directional communication interface that adopt the preset lines (in the present embodiment, keeping line and HPD line) that comprises in the HDMI cable 620.High-speed data line interface 303 will be described after a while.
317 pairs of mpeg decoders extract by demultiplexer 306 or the part TS that reappears by DVD/BD driver 309 and HDD 310 in the video PES grouping that comprises carry out decoding processing, and provide video data.Decoding processing is carried out in the audio frequency PES grouping that comprises among 317 couples of part TS of mpeg decoder, and voice data is provided.
If necessary, the video data execution graph graphic data overlap-add procedure that obtains by mpeg decoder 317 of 318 pairs of graphics generation circuits etc.Video output terminal 319 outputs are from the video data of graphics generation circuit 318 outputs.The video data that 320 outputs of audio output are obtained by mpeg decoder 317.
If necessary, DPCP circuit 316 is encrypted part TS that is extracted by demultiplexer 306 or the part TS that is reappeared by DVD/BD driver 309 and HDD310.316 deciphering of DPCP circuit are fed to the enciphered data of Ethernet interface 314 from network terminal 315 or high-speed data line interface 303.
The action of each assembly of CPU 311 control DVD registers 300.Flash ROM 312 storage Control Software are also preserved data.DRAM 313 is formed for the service area of CPU 311.CPU 311 will be deployed into the DRAM 313 from software and the data that flash ROM 312 reads, activating software, and each assembly of control DVD register 300.
Action in the DVD register 300 shown in Figure 5 will briefly be described below.
The television broadcasting signal that is input to antenna terminal 304 is fed to digital tuner 305.In digital tuner 305, take out the predetermined stream that transmits by handling television broadcasting signal, and should predeterminedly transmit stream and be fed to demultiplexer 306.In demultiplexer 306, extract the part TS (the TS grouping of video data and the TS grouping of voice data) that is associated with predetermined channel from this transmission stream.This part TS presents to DVD/BD driver 309 or HDD 310 via record cell interface 308, and based on the recording instruction that sends from CPU 311 and record.
Present to mpeg decoder 317 by the part TS of demultiplexer 306 extractions or the part TS that reappears by DVD/BD driver 309 or HDD 310.In mpeg decoder 317, the video PES grouping that the TS grouping that utilizes video data forms is carried out decoding processing so that obtain video data.This video data experiences graph data overlap-add procedure etc. by graphics generation circuit 318, outputs to video output terminal 319 then.In mpeg decoder 317, the audio frequency PES grouping that the TS grouping that utilizes voice data forms is carried out decoding processing so that obtain voice data.This voice data outputs to audio output 320.
Present to HDMI transmitting element 302 by video (image) data and voice data that mpeg decoder 317 obtains according to the part TS that reappears by DVD/BD driver 309 or HDD 310, and be transferred to audio frequency amplifier 200 being coupled on the HDMI cable 620 of HDMI terminal 302.
In high-speed data line interface 303, be received on the preset lines of the HDMI cable 620 that is coupled to HDMI terminal 301 from the part TS of the encryption of audio frequency amplifier 200 sides transmission.This part TS presents to DTCP circuit 316 via Ethernet interface 314, and by its deciphering.
Part TS by 316 deciphering of DTCP circuit presents to CPU 311.CPU 311 analyzes this part TS, and extracts the packet ID (PID) as channel selection information, and this channel selection information specifies in to select what channel in the television receiver 100.CPU 311 is based on this packet ID control figure tuner 305 and demultiplexer 306, and allow to select with television receiver 100 in the identical channel of channel.In this case, when the channel-changing of selecting in television receiver 100 was another, the channel of selecting in DVD register 300 was also changed into another.
In high-speed data line interface 303, receive the IP grouping, this IP grouping comprises remote-control code, and transmits from audio frequency amplifier 200 sides on the preset lines of the HDMI cable 620 that is coupled to HDMI terminal 301.This IP grouping is presented to CPU 311 via Ethernet interface 314.When the remote-control code that comprises in this IP grouping related to the control of DVD register 300, CPU 311 was based on each assembly of this remote-control code control DVD register 300.
For example, when what this remote-control code be in when record instruction, CPU 311 realizes control, makes that the part TS that is extracted by demultiplexer 306 will be by DVD/BD driver 309 or HDD 310 records.
When passing through Network Transmission as the part TS that extracts by demultiplexer 306 or by the part TS that DVD/BD driver 309 or HDD 310 reappear, after this part TS was encrypted by DTCP circuit 316, the part TS that obtains outputed to network terminal 315 via Ethernet interface 314.
Fig. 6 illustrates the arrangement example in HDMI transmitting element (HDMI source) communication system 10 202a, shown in Figure 1 of HDMI receiving element (the HDMI place) 102 of television receiver 100 and audio frequency amplifier 200.
HDMI transmitting element 202a is during effective image spacing (hereinafter referred to as activating intervals of video), one-way transmission represents that (unpressed) differential signal of base band of the view data of a screen gives HDMI receiving element 102 on a plurality of channels, and this effective image spacing is the interval of getting rid of from the interval to next vertical synchronizing signal from certain vertical synchronizing signal, have horizontal blanking period and vertical blanking period (hereinafter referred to as the video field).During horizontal blanking period and vertical blanking period, HDMI transmitting element 202a will represent that on a plurality of channels voice data, the control of accompanying image data are divided into groups and the differential signal one-way transmission of other auxiliary datas is given HDMI receiving element 102.
HDMI transmitting element 202a comprises source signal processing block 71 and HDMI transmitter 72.Unpressed image (video) data and the voice data of base band are presented to source signal processing block 71.71 pairs of view data of presenting of source signal processing block and voice data are carried out the processing that requires, and the view data and the voice data that obtain are presented to HDMI transmitter 72.If necessary, then the information (control/state) of source signal processing block 71 communicating control informations or indicating status is given HDMI transmitter 72, or from the information (control/state) of HDMI transmitter 72 receiving control informations or indicating status.
HDMI transmitter 72 will be converted to differential signal from the view data that source signal processing block 71 is presented, and on a plurality of channels (that is, three TMDS channel #0, #1 and #2), give the HDMI receiving element 102 that is connected by HDMI cable 610 with this differential signal one-way transmission.
The control data item of the voice data of following compressing image data not, control grouping or any other auxiliary data and vertical synchronizing signal (VSYNC) and horizontal-drive signal (HSYNC) that HDMI transmitter 72 will be presented from source signal processing block 71 is converted to differential signal, and on three TMDS channel #0, #1 and #2 with this differential signal one-way transmission to the HDMI receiving element 102 that is connected by HDMI cable 610.
Transmitter 72 will be transferred to the HDMI receiving element 102 that is connected by HDMI cable 610 with the synchronous pixel clock of the view data item that will transmit on three TMDS channel #0, #1 and #2 on TMDS clock channel (channel).
Signal processing piece 82 pairs of data item of presenting from HDMI receiver 81 in place are carried out the processing that requires, and export the data item that obtains.If necessary, then the information (control/state) of place signal processing piece 82 communicating control informations or indicating status is given HDMI receiver 81, or from the information (control/state) of HDMI receiver 81 receiving control informations or indicating status.
Except three TMDS channel #0, #1 and #2 and pixel clock transmit thereon as the TMDS clock channel of transmission channel, the HDMI transmission channel also comprises the transmission channel that is called display data channel (DDC) 83 and CEC line 84, view data item, auxiliary data and control data item on these three TMDS channels with pixel clock synchronously from the unidirectional serial transmission of HDMI transmitting element 202a to HDMI receiving element 102.
DDC 83 utilizes two lines that comprise in the HDMI cable 610 and unshowned (holding wire) to realize, and uses when the place device that connects by HDMI cable 610 reads the demonstration sign (E-EDID) that strengthens expansion at source apparatus.That is, the place device comprises EDIDROM 85.Source apparatus reads the E-EDID that is stored in the EDIDROM 85 by DDC83 from the place device that connects by HDMI cable 610, and discerns the setting and the performance of place device based on E-EDID.
CEC line 84 utilizes a line that comprise in the HDMI cable 610 and unshowned to form, and is used to carry out the two-way communication of the control data item between source apparatus and the place device.
Fig. 7 shows the transmission intercal example of (period), and during this transmission intercal, various transmission data item are transmitted on according to three TMDS channel #0, the #1 of HDMI and #2.Fig. 7 shows and lines by line scan (progressive) image under situation about transmitting on TMDS channel #0, #1 and the #2, for the interval of the various transmission data item that will send in horizontal 720 pixels * vertical 480 pixels.
In the video field that the transmission data item is transmitted, video data (video data period), data isolation three intervals in (data isolation period) and control interval (controlling the period) have at interval at interval been defined on according to three TMDS channel #0, the #1 of HDMI and #2.
The video field is that forward position (active edges) from certain vertical synchronizing signal is to the interval in the forward position of next vertical synchronizing signal at interval, and be divided into horizontal blanking period (horizontal blanking), vertical blanking period (vertical blanking) and activate intervals of video (activation video), this activation intervals of video is the interval that removes horizontal blanking period and vertical blanking period from the video field at interval.
Video data is distributed to the activation intervals of video at interval.Video data at interval in, in video data interim transmission corresponding to the product of 720 pixels * 480 lines and constitute the valid pixel (activation pixel) of the not compressing image data item of a screen.
Data isolation interval and control interval are distributed to horizontal blanking period and vertical blanking period.At the data isolation interval with during the control interval, the transmission auxiliary data.
Particularly, data isolation is distributed to the each several part of horizontal blanking period and vertical blanking period at interval.In data isolation interim, do not relate to the data of control in the transmission auxiliary data, for example, the grouping of voice data.
Control interval is distributed to other parts of horizontal blanking period and vertical blanking period.During the control interval, do not relate to the data of control in the transmission auxiliary data, for example, vertical synchronizing signal, horizontal-drive signal and control grouping.
According to described HDMI, be 165MHz for example in the frequency of the pixel clock of TMDS clock channel.In this case, data isolation transfer rate at interval is in the magnitude of about 500Mbps.
Fig. 8 shows the pin assignments of HDMI terminal 101 and 201a respectively.This pin assignments is called type A and distributes.
Two lines as differential lines are coupled to pin (number of pins is any pin of 1,4 and 7) that has distributed TMDS data #i+ and the pin (number of pins is any pin of 3,6 and 9) that has distributed TMDS data #i-, and differential signal TMDS data #i+ and TMDS data #i-on the TMDS channel #i transmit on this differential lines.
It is 13 pin that the CEC line 184 of representing the CEC signal of control data to transmit thereon is coupled to its number of pins.Its number of pins is that 14 pin is not use (reservation) pin.To be coupled to its number of pins be 16 pin to the line of transmitting serial data (SDA) signal (as E-EDID) thereon.It is 15 pin that the line that transmits serial clock (SCL) signal thereon is coupled to its number of pins, and this serial clock signal is in transmission or is used for clock signal synchronous when receiving the SDA signal.DDC 83 utilizes the line formation of transmitting the line of SDA signal thereon and transmitting the SCL signal thereon.
As mentioned above, to be coupled to its number of pins be 19 pin to source apparatus 110 line 86 that is used to detect the connection of place device 120.As mentioned above, to be coupled to its number of pins be 18 pin to the line 87 that is used to power.
Fig. 6 illustrates the arrangement example in HDMI transmitting element (HDMI source) communication system 10 202a, shown in Figure 1 of HDMI receiving element (the HDMI place) 102 of television receiver 100 and audio frequency amplifier 200.The HDMI receiving element 202b of the HDMI transmitting element 302 of the DVD register 300 in the communication system 10 shown in Figure 1 and audio frequency amplifier 200 arranges in the same manner, therefore with omissions of detail.
Fig. 9 illustrates the arrangement example in the high-speed data line interface communication system 10 203a, shown in Figure 1 of the high-speed data line interface 103 of television receiver 100 and audio frequency amplifier 200.Interface 103 constitutes with 203a carries out the communication unit that local area network (LAN) (LAN) is communicated by letter.This communication unit uses a pair of differential lines executive communication in the many lines that constitute HDMI610, and this is exactly to be coupled to the HPD line (Ether+ line) that does not use the reservation line (Ether-line) of (reservation) pin (14 pin) and be coupled to HPD pin (19 pin) to differential lines in the present embodiment.
Power line (+5.0V) and between the earth connection, connect the series circuit that comprises pullup resistor 421, ac coupling capacitor 413, end resistor 412, ac coupling capacitor 414 and pull-down-resistor 431.Junction point P1 between ac coupling capacitor 413 and the end resistor 412 is connected to the positive output side of lan signal transtation mission circuit 411, and is connected to the positive output side of lan signal receiving circuit 415.Junction point P2 between ac coupling capacitor 414 and the end resistor 412 is connected to the negative output side of lan signal transtation mission circuit 411, and is connected to the negative output side of lan signal receiving circuit 415.Present the input side of the signal SG 411 of transmission from Ethernet interface 211 to lan signal transtation mission circuit 411.
The output signal SG412 of lan signal receiving circuit 415 presents the plus end to subtraction circuit 416.Present the negative terminal of the signal SG 411 of transmission from Ethernet interface 211 to subtraction circuit 416.In subtraction circuit 416, from the output signal SG412 of lan signal receiving circuit 415, deduct the signal SG 411 of transmission.The output signal SG413 of subtraction circuit 416 is fed to Ethernet interface 211.
Junction point Q1 between pullup resistor 421 and the ac coupling capacitor 413 is connected to earth connection via the series circuit that comprises resistor 422 and capacitor 423.The output signal of the low pass filter that the junction point between resistor 422 and capacitor 423 forms is fed to one of input terminal of comparator 424.In comparator 424, the output signal of low pass filter and the reference voltage Vref1 (+3.75V) comparison of presenting to another input terminal.The output signal SG414 of comparator 424 presents 213 (not shown) to CPU.
Junction point Q2 between ac coupling capacitor 414 and pull-down-resistor 431 is connected to earth connection via the series circuit of resistor 432 and capacitor 433.The output signal of the low pass filter that the junction point between resistor 432 and capacitor 433 forms is presented one of input terminal to comparator 434.In comparator 434, the output signal of low pass filter and the reference voltage Vref2 (+1.4V) comparison of presenting to another input terminal.The output signal SG415 of comparator 434 presents 213 (not shown) to CPU.
Power line (+5.0V) and between the earth connection, connect the series circuit of resistor 462 and resistor 463.Between the junction point and earth connection between resistor 462 and the resistor 463, connect the series circuit that comprises choke 461, ac coupling capacitor 444, end resistor 442, ac coupling capacitor 443 and pull-down-resistor 451.
Junction point P3 between ac coupling capacitor 443 and the end resistor 442 is connected to the positive output side of lan signal transtation mission circuit 441, and is connected to the positive input side of lan signal receiving circuit 445.Junction point P4 between ac coupling capacitor 444 and the end resistor 442 is connected to the negative output side of lan signal transtation mission circuit 441, and is connected to the negative input side of lan signal receiving circuit 445.Present the input side of the signal SG 417 of transmission from Ethernet interface 124 to lan signal transtation mission circuit 441.
The output signal SG418 of lan signal receiving circuit 445 presents the plus end to subtraction circuit 446.Present the negative terminal of the signal SG 417 of transmission from Ethernet interface 124 to subtraction circuit 446.In subtraction circuit 446, from the output signal SG418 of lan signal receiving circuit 445, deduct the signal SG 417 of transmission.The output signal SG419 of subtraction circuit 446 is fed to Ethernet interface 124.
Junction point Q3 between pull-down-resistor 451 and the ac coupling capacitor 443 is connected to earth connection via the series circuit of resistor 452 and capacitor 453.The output signal of the low pass filter that the junction point between resistor 452 and capacitor 453 forms is fed to one of input terminal of comparator 454.In comparator 454, the output signal of low pass filter and the reference voltage Vref3 (+1.25V) comparison of presenting to another input terminal.The output signal SG416 of comparator 454 presents 121 (not shown) to CPU.
Reservation line 501 that comprises in the HDMI cable 610 and HPD line 502 constitute differential twisted pair.The source end 511 that keeps line 501 is coupled to 14 pins of HDMI terminal 201a, and the place side of reservation line 501 is coupled to the pin 521 (14 pin) of HDMI terminal 101.The source end 512 of HPD line 502 is coupled to 19 pins of HDMI terminal 201a, and the place side 522 of HPD line 502 is coupled to 19 pins of HDMI terminal 101.
In audio frequency amplifier 200, the junction point Q1 between pullup resistor 421 and the ac coupling capacitor 413 is connected to 14 pins of HDMI terminal 201a.Junction point Q2 between pull-down-resistor 431 and the ac coupling capacitor 414 is connected to 19 pins of HDMI terminal 201a.On the other hand, in television receiver 100, the junction point Q3 between pull-down-resistor 451 and the ac coupling capacitor 443 is connected to 14 pins of HDMI terminal 101.Junction point Q4 between choke 461 and the ac coupling capacitor 444 is connected to 19 pins of HDMI terminal 101.
Then, the action that the LAN that carried out by the high-speed data line interface 103 with aforementioned components and 203a communicates by letter will be described below.
In audio frequency amplifier 200, be fed to the input side of lan signal transtation mission circuit 411 from the signal SG411 of the transmission of Ethernet interface 211 output.The differential signal (positive output signal and negative output signal) that is associated with the signal SG411 of transmission is from 411 outputs of lan signal transtation mission circuit.Be fed to junction point P1 and P2 respectively from the differential signal of lan signal transtation mission circuit 411 outputs, and be transferred to television receiver 100 on a pair of line that in HDMI cable 610, comprises (keeping line 501 and HPD line 502).
In television receiver 100, be fed to the input side of lan signal transtation mission circuit 441 from the signal SG417 of the transmission of Ethernet interface 124 output, and the differential signal (positive output signal and negative output signal) that is associated with the signal SG417 of transmission is from 441 outputs of lan signal transtation mission circuit.Be fed to junction point P3 and P4 respectively from the differential signal of lan signal transtation mission circuit 441 outputs, and be transferred to audio frequency amplifier 200 on a pair of line that in HDMI cable 610, comprises (keeping line 501 and HPD line 502).
In audio frequency amplifier 200, because the input side of lan signal receiving circuit 415 is connected to junction point P1 and P2, so obtain the transmission signals that is associated with differential signal (current signal) from 441 outputs of lan signal transtation mission circuit and with the received signal that is associated from the differential signal of television receiver 100 transmission as mentioned above between sum signal, as the output signal SG412 of lan signal receiving circuit 415.In subtraction circuit 416, from the output signal SG412 of lan signal receiving circuit 415, deduct transmission signals SG411.Therefore, the output signal SG413 of subtraction circuit 416 is corresponding to the transmission signals SG417 of television receiver 100.
In television receiver 100, because the input side of lan signal receiving circuit 445 is connected to junction point P3 and P4, so obtain the transmission signals that is associated with differential signal (current signal) from 441 outputs of lan signal transtation mission circuit and with the received signal that is associated from the differential signal of audio frequency amplifier 200 transmission as mentioned above between sum signal, as the output signal SG418 of lan signal receiving circuit 445.In subtraction circuit 446, from the output signal SG418 of lan signal receiving circuit 445, deduct transmission signals SG417.Therefore, the output signal SG419 of subtraction circuit 446 is corresponding to the transmission signals SG411 of audio frequency amplifier 200.
Between the high-speed data line interface 203a of the high-speed data line interface 103 of television receiver 100 and audio frequency amplifier 200, can carry out two-way LAN communication.
In Fig. 9, except LAN communication, HPD line 502 also is used for propagating HDMI cable 610 has inserted television receiver 100 in the DC bias level the fact to audio frequency amplifier 200.Particularly, when HDMI cable 610 inserts in the television receivers 100, the resistor 462 in the television receiver 100 and 463 and 19 pins of choke 461 by HDMI terminal 101 HPD line 502 is biased to about 4V.Audio frequency amplifier 200 uses the low pass filter that comprises resistor 432 and capacitor 433, and with the DC biasing on the sampling HPD line 502, and relatively this DC biasing and reference voltage Vref2 be (for example, 1.4V) to use comparator 434.
When HDMI cable 610 did not insert in the television receiver 100, the voltage at the 19 pin places of HDMI terminal 201a was lower than reference voltage Vref2, because there is pull-down-resistor 431.On the contrary, when HDMI cable 610 inserted in the television receiver 100, the voltage at 19 pin places was higher than reference voltage Vref2.Therefore, when HDMI cable 610 inserted in the television receiver 100, the output signal SG415 of comparator 434 got high level.On the contrary, output signal SG415 gets low level.Therefore, the output signal SG415 of device 434 based on the comparison, whether the CPU 213 of audio frequency amplifier 200 can discern HDMI cable 610 and insert in the television receiver 100.
In Fig. 9, each device that interconnects at the two ends of HDMI cable 610 has following function, and " based on the DC bias potential that keeps on the line 501, the identification remote-control device is to support LAN communicating devices (hereinafter referred to as the e-HDMI compatible apparatus) or do not support LAN communicating devices (hereinafter referred to as the incompatible device of e-HDMI).
As mentioned above, audio frequency amplifier 200 use on the resistors 421 and draw (+5V) keep line 501, and television receiver 100 uses resistors 451 drop-down reservation lines 501.In the incompatible device of e-HDMI, there are not resistor 421 and 451.
As mentioned above, audio frequency amplifier 200 use comparators 424 relatively keep dc electromotive force and the reference voltage Vref1 on the line 501, and this dc electromotive force is by comprising the low pass filter of resistor 422 and capacitor 423.When television receiver 100 is e-HDMI compatible apparatus and when comprising pull-down-resistor 451, the voltage that keeps on the line 501 is 2.5V.Yet, when television receiver 100 is incompatible devices of e-HDMI and when not comprising pull-down-resistor 451, the voltage that keeps on the line 501 is 5V, because there is pullup resistor 421.
Therefore, when reference voltage Vref1 for example was set to 3.75V, if television receiver 100 is e-HDMI compatible apparatus, then the output signal SG414 of comparator 424 got low level.Otherwise output signal SG414 gets high level.Whether the CPU 213 of the audio frequency amplifier 200 output signal SG414 identification television receiver 100 of device 424 based on the comparison is the e-HDMI compatible apparatus.
Equally, as mentioned above, television receiver 100 use comparators 454 relatively keep dc electromotive force and the reference voltage Vref3 on the line 501, and this dc electromotive force is by comprising the low pass filter of resistor 452 and capacitor 453.When audio frequency amplifier 200 is e-HDMI compatible apparatus and when comprising pullup resistor 421, the voltage that keeps on the line 501 is 2.5V.Yet, when audio frequency amplifier 200 is incompatible devices of e-HDMI and when not comprising pullup resistor 421, the voltage that keeps on the line 501 is 0V, because there is pull-down-resistor 451.
Therefore, when reference voltage Vref3 for example was set to 1.25V, if television receiver 100 is e-HDMI compatible apparatus, then the output signal SG416 of comparator 454 got high level.Otherwise the output signal SG416 of comparator 454 gets low level.The output signal SG416 of device 454 based on the comparison, the CPU 121 of television receiver 100 can discern whether audio frequency amplifier 200 is the e-HDMI compatible apparatus.
Pullup resistor 421 shown in Figure 9 can be included in the HDMI cable 610 rather than in the audio frequency amplifier 200.In this case, each terminal of pullup resistor 421 is connected respectively to each line (holding wire) in the line that comprises in the HDMI cable 610, and this line joins or be coupled to reservation line 501 or power supply (electrical source voltage) to.
Pull-down-resistor 451 shown in Figure 9 and resistor 463 can be included in the HDMI cable 610 rather than in the television receiver 100.In this case, each terminal of pull-down-resistor 451 is connected respectively to the reservation line 501 and the line (earth connection) that is coupled to ground (with reference to electromotive force) in the line that comprises in the HDMI cable 610.Each terminal of resistor 463 is connected to the HPD line 502 in the line that comprises in the HDMI cable 610 and is coupled to the line (earth connection) on ground (with reference to electromotive force).
Fig. 9 illustrates the arrangement example in the high-speed data line interface communication system 10 203a, shown in Figure 1 of the high-speed data line interface 103 of television receiver 100 and audio frequency amplifier 200.The high-speed data line interface 203b of the audio frequency amplifier 200 that comprises in the communication system 10 shown in Figure 1 and the high-speed data line interface 303 of DVD register 300 are arranged in the same manner.
Then, various operating sequences in the communication system shown in Figure 1 10 will be described below.At first, with reference to the precedence diagram of Figure 10, use description to " contact history " of the picture (image) seen on the record television receiver 100 below.
(a) when the user uses Long-distance Control transmitter 127 to carry out receive channel change operation (channel-changing), (b) the CPU 121 control figure tuners 106 and the demultiplexer 107 of television receiver 100 are so that reach the accepting state of the channel of being selected by the user.(c) when receive channel changes to another as mentioned above, television receiver 100 uses DTCP circuit 116 to encrypt the part TS that is extracted by demultiplexer 117, and the TS that obtains via Ethernet interface 124 and 103 transmission of high-speed data line interface gives DVD register 300 then.
(d) DVD register 300 uses high-speed data line interface 303 to receive the part TS that sends from television receiver 100, and uses DTCP circuit 306 to decipher this part TS.The CPU 311 of DVD register 300 is based on channel selection information (packet ID) the control figure tuner 305 and the demultiplexer 306 that comprise among this part TS, so that reach the accepting state of the identical channel of the channel that receives with television receiver 100.
(e) after this, when the user uses Long-distance Control transmitter 127 instruction records (contact history), the CPU 121 (f) of television receiver 100 produces the IP grouping that comprises remote-control code (remote control signal), this remote-control code instruction is write down and is received by Long-distance Control receiving element 126, and (g) divides into groups to DVD register 300 via Ethernet interface 124 and high-speed data line interface 103 these IP of transmission.
(h) DVD register 300 uses high-speed data line interface 303 to receive the IP grouping that sends from television receiver 100.The CPU 311 of DVD register 300 writes down and is included in the remote-control code in the IP grouping based on instruction, allow DVD/BD driver 309 or HD 310 to start the record of the part TS that is extracted by demultiplexer 306.
(i) CPU 311 of DVD register 300 produces the IP grouping, this IP is grouped in the recording status information that comprises in its payload about DVD/BD driver 309 or HD 310, and divides into groups to television receiver 100 via Ethernet interface 124 and high-speed data line interface 103 these IP of transmission.
(j) television receiver 100 uses high-speed data line interface 103 to receive the IP grouping that sends from DVD register 300.If necessary, CPU 121 controls graphics generation circuit 110 based on the recording status information that comprises in the IP grouping, and when being superimposed upon recording status on the image, recording status is presented on the display floater 112.
According to Figure 10 described " contact history " in proper order, when the receive channel of television receiver 100 was changed into another, the part TS that comprises channel selection information was transferred to DVD register 300 immediately via high-speed data line interface 103.The receive channel of DVD register 300 is changed into another then.When user instruction write down, the IP grouping that comprises the remote control command of instruction record was transferred to DVD register 300 immediately via high-speed data line interface 103.Therefore, in DVD register 300, can start the record of the part TS on the receive channel that television receiver 100 watches immediately.
Mention that along band Figure 11 is illustrated in each " contact history " comparative example in proper order of installing under the situation that does not comprise the high-speed data line interface, will obey of communication system shown in Figure 1 10.
(a) when the user uses Long-distance Control transmitter 127 to carry out receive channel change operation (channel-changing), (b) the CPU 121 control figure tuners 106 and the demultiplexer 107 of television receiver 100 are so that reach the accepting state of the channel of being selected by the user.
(c) after this, when the user uses Long-distance Control transmitter 127 to instruct record (contact history), the CPU 121 (d) of television receiver 100 will instruct record and be converted to the order of adopting by the remote-control code that Long-distance Control receiving element 126 receives in HDMI CEC control, and (e) use the CEC line to give DVD register 300 with this command transfer.
(f) after receiving this recording instruction order, DVD register 300 uses the CEC line from television receiver 100 request receiving channel informations.(g) respond this request, television receiver 100 uses CEC line transmission receiving channel information to give DVD register 300.
(h) based on the receiving channel information that sends from television receiver 100, the CPU 311 control figure tuners 305 and the demultiplexer 306 of DVD register 300, so that make its receive channel consistent with the receive channel of television receiver 100, and the part TS that (i) allows DVD/BD driver 309 or HDD 310 startup records to extract by demultiplexer 306.
(j) CPU311 of DVD register 300 uses the transmission of CEC line to give television receiver 100 about the recording status information of DVD/BD driver 309 or HDD 310.(k) based on the recording status information that sends from DVD register 300, if necessary, television receiver 100 control graphics generation circuits 110, and when being superimposed upon recording status on the image, recording status is presented on the display floater 112.
According to Figure 11 described " contact history " in proper order, behind the user instruction record, the receive channel of DVD register 300 is consistent with the receive channel of television receiver 100, so that start record.Use has the CEC line of low transmission speed characteristics, carry out from television receiver 100 to DVD register 300 transmission log designated commands, from DVD register 300 to television receiver 100 request receiving channel informations and from television receiver 100 to DVD register 300 transmission receiving channel informations.Therefore, up to starting record, need the very long time in user instruction record back.
Then, with reference to the precedence diagram of Figure 12, " theater mode " that use description between television receiver 100 and audio frequency amplifier 200 to change audio frequency output below in proper order.
(a) when the user uses Long-distance Control transmitter 127 to specify " theater mode ", (b) the CPU 121 control audio amplifying circuits of television receiver 100 are so that the output of the audio frequency of quiet loud speaker 115.(c) CPU 121 of television receiver 100 produces the IP grouping that comprises the DE-mute order that is used for audio frequency amplifier 200 then, and via Ethernet interface 124 and high-speed data line interface 103 this IP transmitted in packets is arrived audio frequency amplifier 200.
(d) audio frequency amplifier 200 uses high-speed data line interface 203a to receive the IP grouping that sends from television receiver 100.Based on the DE-mute order that comprises in the IP grouping, CPU 213 control audio amplifying circuits 208 are so that cancel audio frequency output quiet of 5.1 channel loudspeaker groups 500.Correspondingly, sound switches to " theater mode " by the state of loud speaker 115 outputs of television receiver 100, wherein set of speakers 500 outputs of sound by being connected to audio frequency amplifier 200.
In this case, television receiver 100 uses DTCP circuit 116 to encrypt the part TS that is extracted by demultiplexer 107, and the part TS that will obtain via Ethernet interface 124 and high-speed data line interface 103 is transferred to audio frequency amplifier 200 then.Audio frequency amplifier 200 uses high-speed data line interface 203a to receive the part TS that sends from television receiver 100, and the audio signal of the voice data that comprises from audio frequency processing circuit 207 this part of output expression TS.Therefore, so that when cancelling audio frequency output quiet of 5.1 channel loudspeaker groups 500, sound is exported immediately by set of speakers 500 when control audio amplifying circuit 208 as mentioned above.
(e) after cancellation is quiet, the CPU 213 of audio frequency amplifier 200 produces the IP grouping, and this IP is grouped in its payload and comprises the result, and gives television receiver 100 via Ethernet interface 211 and high-speed data line interface 203a with this IP transmitted in packets.
According to Figure 12 described " theater mode " in proper order, when the user specifies " theater mode ", the output of the audio frequency of the loud speaker 115 of television receiver 100 is muted, and the IP grouping that comprises the DE-mute order is transferred to audio frequency amplifier 200 immediately via high-speed data line interface 103.Therefore, sound switches to " theater mode " immediately by the state of loud speaker 115 outputs of television receiver 100, wherein set of speakers 500 outputs of sound by being connected to audio frequency amplifier 200.
Figure 13 be presented at communication system shown in Figure 1 10 each the device in do not comprise adopt under the situation of high-speed data line interface " theater mode " order comparative example.
(a) when the user uses Long-distance Control transmitter 127 to specify " theater mode ", (b) the CPU 121 control audio amplifying circuits of television receiver 100 are so that the output of the audio frequency of quiet loud speaker 115.(c) television receiver 100 uses CEC alignment audio frequency amplifier 200 request mute state.(d) response is to the request of mute state, and audio frequency amplifier 200 uses the CEC line that mute state is transferred to television receiver 100.
(e) when not cancelling in audio frequency amplifier 200 when quiet, the CPU 121 of television receiver 100 uses the CEC of CEC line return instruction DE-mutes to order to audio frequency amplifier 200.(f) based on this CEC order, audio frequency amplifier 200 control audio amplifying circuits 208 are so that cancel audio frequency output quiet of 5.1 channel loudspeaker groups 500.Correspondingly, sound switches to " theater mode " immediately by the state of loud speaker 115 outputs of television receiver 100, wherein set of speakers 500 outputs of sound by being connected to audio frequency amplifier 200.If do not comprise the high-speed data line interface,, realize presenting voice data to audio frequency amplifier 200 from television receiver 100 then by for example optical cable.
(g) after cancellation is quiet, the CPU 213 of audio frequency amplifier 200 uses CEC line transmission result to give television receiver 100.
According to Figure 13 described " theater mode " in proper order, after the user specified " theater mode ", television receiver 100 was to audio frequency amplifier 200 request mute state.If do not cancel quietly, then the CEC of television receiver 100 transfer instruction DE-mutes orders to audio frequency amplifier 200, so that state switched to " theater mode ".Therefore, specify " theater mode " back to switch to " theater mode " elapsed time and become longer up to state is actual the user.According to Figure 13 described " theater mode " control sequence, except HDMI cable 610, also need optical cable by its transmitting audio data.
With reference to the precedence diagram of Figure 14, below " Long-distance Control " will be described in proper order.Mention that along band Figure 14 relates to remote-control code is transferred to DVD register 300 from television receiver 100 situation.
(a) when the user is just pushing the predetermined button (Long-distance Control button) of Long-distance Control transmitter 127, the CPU 121 (b) of television receiver 100 produces the IP grouping that comprises the remote-control code that is received by Long-distance Control receiving element 126, and (c) divides into groups to DVD register 300 via Ethernet interface 124 and high-speed data line interface 123 transmission IP.
(d) DVD register 300 uses high-speed data line interface 303 to receive the IP grouping that sends from television receiver 100.The CPU 311 of DVD register 300 explains the remote-control code that comprises in the IP grouping, and the relevant portion of control DVD register 300.In this case, CPU 311 can know the length of user's pressing button from the received duration of IP grouping, and can consider that the length of pushing explains remote-control code.
(e) when the user discharges the pushing of predetermined button of Long-distance Control transmitter 127, (f) CPU 121 of television receiver 100 stops comprising the generation of the IP grouping of remote-control code.
According to Figure 14 described " Long-distance Control " in proper order, television receiver 100 produces the IP grouping that comprises remote-control code, and 103 transmission IP divide into groups to DVD register 300 via the high-speed data line interface, and the action in the control DVD register 300.Therefore, in television receiver 100, becoming does not need remote-control code for example is converted to processing at the undefined code of CEC.Equally, becoming need will be not the processing of original remote-control code in the undefined code conversion of CEC in DVD register 300.Simplified remote-control code each processing respectively at transmission and receiver side.Television receiver 100 will comprise the IP transmitted in packets of remote-control code to DVD register 300 via high-speed data line interface 103.Can be from the quick Long-distance Control that realizes DVD register 300 of television receiver 100 sides.
Figure 15 shows the comparative example that does not comprise " Long-distance Control " order that adopts under the situation of high-speed data line interface at each device of communication system shown in Figure 1 10.
(a) when the user is just pushing the predetermined button of Long-distance Control transmitter 127, (b) CPU 121 of television receiver 100 will be converted to the CEC order by the remote-control code that remote control receiver 126 receives according at the undefined code listing of CEC.(c) CPU 121 uses CEC line transmission CEC to order to DVD register 300.(d) CPU 311 of DVD register 300 will be converted to remote-control code again from the CEC order that television receiver 100 sends, and explain this remote-control code, and the relevant portion of control DVD register 300.
(e), after this, if the user stops the pushing of the predetermined button of Long-distance Control transmitter 127, then the CPU 121 (f) of television receiver 100 is created in the undefined order of CEC, and (g) uses the CEC line to give DVD register 300 with the CEC command transfer.(h) CPU311 of DVD register 300 based on notice to the Long-distance Control button push stop and, stop explanation remote-control code from the order that television receiver 100 sends.
According to Figure 15 described " Long-distance Control " in proper order, television receiver 100 is ordered according to transferring remote-control code to CEC at the undefined code listing of CEC, and gives DVD register 300 with this CEC command transfer.DVD register 300 is converted to remote-control code again with the CEC order that sends, and explains this remote-control code.Therefore, increased the processing load that transmission and receiver side by remote-control code cause.Because being the CEC line of low transmission speed, characteristic is used to send remote-control code, so, then may introduce delay from television receiver 100 side Long-distance Control DVD registers 300 if the data length of CEC order is long.
As previously mentioned, in communication system shown in Figure 1 10, use the bidirectional communication unit of two lines (reserving line and HPD line) of HDMI cable 610 or 620 to be used for selecting to audio frequency amplifier 200 or DVD register 300 transmission channels the remote-control code, " theater mode " appointed information, remote-control code etc. of information, instruction record from television receiver 100.Can quick control audio frequency amplifier 200 or the mode of operation of DVD register 300.
In the aforementioned embodiment, the reservation line of use HDMI cable and the high-speed bidirectional communication unit of HPD line have been described.This high-speed bidirectional communication unit can use other line structures of HDMI cable.
In the aforementioned embodiment, supposed to adopt the interface that meets the HDMI standard to be described as the transmission line between each device.The present invention can be applied to any other similar transmission standard.In the aforementioned embodiment, communication system 10 comprises television receiver 100, audio frequency amplifier 200 and DVD register 300.The present invention can be applied to comprise the similar communication system of other devices.
In the aforementioned embodiment, between each device, carry out two-way IP communication.Two-way communication can be carried out under any agreement except IP.In the aforementioned embodiment, each device is by the HDMI cable bond.The present invention can also be applied to the situation of each device by the radio interconnection.
Industrial applicibility
The present invention allows to control fast the mode of operation of source apparatus from the place device, and can be applied to have The communication system of the device of a plurality of HDMI interconnection.
Claims (according to the modification of the 19th of treaty)
1. an electronic installation comprises that from the signal receiving unit of another electronic installation receiving video signals, this vision signal sends on transmission line by differential signal on a plurality of channels, and described electronic installation is characterised in that:
Described electronic installation also comprises communication unit, and it uses the preset lines that comprises in the described transmission line to carry out two-way communication; And
Described communication unit transmits the control information to described another electronic installation at least, and the channel that this control information is used to control described another electronic installation side is selected and record.
2. electronic installation as claimed in claim 1 is characterized in that:
Described electronic installation also comprises: the broadcast reception unit, and it obtains vision signal on the predetermined channel based on television broadcasting signal; Display unit, the picture that the vision signal that its demonstration is obtained by described broadcast reception unit is represented; And user operation unit, the user comes command list to be shown in the record of the vision signal of picture displayed on the described display unit with it.
3. electronic installation as claimed in claim 1 is characterized in that:
Described electronic installation also comprises: the broadcast reception unit, and it obtains vision signal and audio signal based on television broadcasting signal; Display unit, the picture that the vision signal that its demonstration is obtained by described broadcast reception unit is represented; Loud speaker, the sound that the audio signal that its output demonstration is obtained by described broadcast reception unit is represented; And user operation unit, the user comes designated external audio frequency output mode with it, externally under the audio frequency output mode, and the sound that the audio signal of being obtained by described broadcast reception unit by external loudspeaker output is represented; And
Described communication unit will be fed to described another electronic installation by the audio signal that described broadcast reception unit obtains, and the appointed information about described outside output mode of described user operation unit input is used in transmission.
4. electronic installation as claimed in claim 1 is characterized in that:
Described electronic installation also comprises the remote control signal receiving element, and it receives the remote control signal that sends from the transmitter of remote control signal; And
Described communication unit will be transferred to described another electronic installation by the remote control signal that described remote control signal receiving element receives.
5. control information transmission method, be used for comprising from the electronic installation control information transmission of the signal receiving unit of another electronic installation receiving video signals, this vision signal sends on transmission line by differential signal on a plurality of channels, this control information is used to control the mode of operation of described another electronic installation side, and described method is characterised in that:
Comprise communication unit, it uses the preset lines that comprises in the described transmission line to carry out two-way communication; And
Described communication unit transmits described control information at least to described another electronic installation, and the channel that described control information is used to control another electronic installation side is selected and record.
6. an electronic installation comprises signal transmission unit, and it gives another electronic installation by differential signal transmission video signal on transmission line on a plurality of channels, and described electronic installation is characterised in that:
Described electronic installation also comprises communication unit, and it uses the preset lines that comprises in the described transmission line to carry out two-way communication; And
Control unit, it is based on the channel selection information and the recording instruction information that are received by described communication unit, control operation state.
7. electronic installation as claimed in claim 6 is characterized in that:
Comprise based on television broadcasting signal and obtain the broadcast reception unit of the vision signal on the predetermined channel and the record cell that writes down the vision signal of obtaining by described broadcast reception unit; And
Described control unit is based on the channel selection information that is received by described communication unit, the channel that control is selected by described broadcast reception unit, and the described record cell of recording instruction information Control based on being received by described communication unit makes described record cell will start the record of the vision signal of being obtained by described broadcast reception unit.
8. electronic installation as claimed in claim 6 is characterized in that:
Described electronic installation also comprises audio output unit, and the audio signal that its output is received by described communication unit is to loud speaker; And
Based on the appointed information about the external audio output mode that is received by described communication unit, described control unit realizes that control makes quiet in the described audio output unit to change into off status from opening state.
9. electronic installation as claimed in claim 6 is characterized in that, described control unit is controlled the action of each assembly based on the remote control signal that is received by described communication unit.
10. control information method of reseptance, be used at the electronic installation that comprises signal transmission unit from another electronic installation receiving control information, this signal transmission unit arrives another electronic installation by differential signal transmission video signal on transmission line on a plurality of channels, this control information is used for the control operation state, and described method is characterised in that:
Comprise communication unit, it uses the preset lines that comprises in the described transmission line to carry out two-way communication; And
Described communication unit is selected information and recording instruction information from described another electronic installation receive channel.
11. electronic installation as claimed in claim 1 is characterized in that:
On a pair of difference transmission lines, carry out described two-way communication; And
This has the function of using its direct current biasing electromotive force to disclose the connection status of interface in the difference transmission lines at least one.
12. control information transmission method as claimed in claim 5 is characterized in that:
On a pair of difference transmission lines, carry out described two-way communication; And
This has the function of using its direct current biasing electromotive force to disclose the connection status of interface in the difference transmission lines at least one.
13. electronic installation as claimed in claim 6 is characterized in that:
On a pair of difference transmission lines, carry out described two-way communication; And
This has the function of using its direct current biasing electromotive force to disclose the connection status of interface in the difference transmission lines at least one.
14. control information method of reseptance as claimed in claim 10 is characterized in that:
On a pair of difference transmission lines, carry out described two-way communication; And
This has the function of using its direct current biasing electromotive force to disclose the connection status of interface in the difference transmission lines at least one.
Claims (10)
1. an electronic installation comprises that from the signal receiving unit of another electronic installation receiving video signals, this vision signal sends on transmission line by differential signal on a plurality of channels, and described electronic installation is characterised in that:
Described electronic installation also comprises communication unit, and it uses the preset lines that comprises in the described transmission line to carry out two-way communication; And
Described communication unit transmits the control information to described another electronic installation at least, and this control information is used to control the mode of operation of described another electronic installation side.
2. electronic installation as claimed in claim 1 is characterized in that:
Described electronic installation also comprises: the broadcast reception unit, and it obtains vision signal on the predetermined channel based on television broadcasting signal; Display unit, the picture that the vision signal that its demonstration is obtained by described broadcast reception unit is represented; And user operation unit, the user comes command list to be shown in the record of the vision signal of picture displayed on the described display unit with it; And
The information that described communication unit transmission is selected about the channel in the described broadcast reception unit is given described another electronic installation, and the information about recording instruction of described user operation unit input is used in transmission.
3. electronic installation as claimed in claim 1 is characterized in that:
Described electronic installation also comprises: the broadcast reception unit, and it obtains vision signal and audio signal based on television broadcasting signal; Display unit, the picture that the vision signal that its demonstration is obtained by described broadcast reception unit is represented; Loud speaker, the sound that the audio signal that its output demonstration is obtained by described broadcast reception unit is represented; And user operation unit, the user comes designated external audio frequency output mode with it, externally under the audio frequency output mode, and the sound that the audio signal of being obtained by described broadcast reception unit by external loudspeaker output is represented; And
Described communication unit will be fed to described another electronic installation by the audio signal that described broadcast reception unit obtains, and the appointed information about described outside output mode of described user operation unit input is used in transmission.
4. electronic installation as claimed in claim 1 is characterized in that:
Described electronic installation also comprises the remote control signal receiving element, and it receives the remote control signal that sends from the transmitter of remote control signal; And
Described communication unit will be transferred to described another electronic installation by the remote control signal that described remote control signal receiving element receives.
5. control information transmission method, be used for comprising from the electronic installation control information transmission of the signal receiving unit of another electronic installation receiving video signals, this vision signal sends on transmission line by differential signal on a plurality of channels, this control information is used to control the mode of operation of described another electronic installation side, and described method is characterised in that:
Comprise communication unit, it uses the preset lines that comprises in the described transmission line to carry out two-way communication; And
Described communication unit transmits described control information to described another electronic installation.
6. an electronic installation comprises signal transmission unit, and it gives another electronic installation by differential signal transmission video signal on transmission line on a plurality of channels, and described electronic installation is characterised in that:
Described electronic installation also comprises communication unit, and it uses the preset lines that comprises in the described transmission line to carry out two-way communication; And
Control unit, it is based on the control information control operation state that is received by described communication unit.
7. electronic installation as claimed in claim 6 is characterized in that:
Comprise based on television broadcasting signal and obtain the broadcast reception unit of the vision signal on the predetermined channel and the record cell that writes down the vision signal of obtaining by described broadcast reception unit; And
Described control unit is based on the information about the channel selection that is received by described communication unit, the channel that control is selected by described broadcast reception unit, and, make described record cell will start the record of the vision signal of obtaining by described broadcast reception unit based on the described record cell of the information Control about recording instruction that receives by described communication unit.
8. electronic installation as claimed in claim 6 is characterized in that:
Described electronic installation also comprises audio output unit, and the audio signal that its output is received by described communication unit is to loud speaker; And
Based on the appointed information about the external audio output mode that is received by described communication unit, described control unit realizes that control makes quiet in the described audio output unit to change into off status from opening state.
9. electronic installation as claimed in claim 6 is characterized in that, described control unit is controlled the action of each assembly based on the remote control signal that is received by described communication unit.
10. control information method of reseptance, be used at the electronic installation that comprises signal transmission unit from another electronic installation receiving control information, this signal transmission unit arrives another electronic installation by differential signal transmission video signal on transmission line on a plurality of channels, this control information is used for the control operation state, and described method is characterised in that:
Comprise communication unit, it uses the preset lines that comprises in the described transmission line to carry out two-way communication; And
Described communication unit receives described control information from described another electronic installation.
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| JP2007201517 | 2007-08-02 | ||
| JP201517/2007 | 2007-08-02 | ||
| PCT/JP2007/071649 WO2008056707A1 (en) | 2006-11-07 | 2007-11-07 | Electronic device, control information transmission method, and control information reception method |
Related Child Applications (1)
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| CN2010105805649A Division CN102065262B (en) | 2006-11-07 | 2007-11-07 | Electronic device and control information reception method |
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| CN101536518A true CN101536518A (en) | 2009-09-16 |
| CN101536518B CN101536518B (en) | 2012-06-20 |
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| CN2007800415188A Expired - Fee Related CN101573975B (en) | 2006-11-07 | 2007-11-07 | Receiver, delayed information transmitting method for receivers, audio output device, and delay control method for audio output devices |
| CN2007800414965A Expired - Fee Related CN101536519B (en) | 2006-11-07 | 2007-11-07 | Electronic device, content reproducing method, and content decoding method |
| CN200780041485.7A Expired - Fee Related CN101535922B (en) | 2006-11-07 | 2007-11-07 | Electronic apparatus and cable device |
| CN2007800494207A Expired - Fee Related CN101573977B (en) | 2006-11-07 | 2007-11-07 | Transmitting device, video signal transmitting method in transmitting device, recieving device and video signal recieving method in recieving device |
| CN2007800414753A Expired - Fee Related CN101536518B (en) | 2006-11-07 | 2007-11-07 | Electronic device, control information transmission method, and control information reception method |
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| CN2007800466419A Expired - Fee Related CN101563921B (en) | 2006-11-07 | 2007-11-07 | Communication system, transmitting device, receiving device and communication method |
| CN2007800415188A Expired - Fee Related CN101573975B (en) | 2006-11-07 | 2007-11-07 | Receiver, delayed information transmitting method for receivers, audio output device, and delay control method for audio output devices |
| CN2007800414965A Expired - Fee Related CN101536519B (en) | 2006-11-07 | 2007-11-07 | Electronic device, content reproducing method, and content decoding method |
| CN200780041485.7A Expired - Fee Related CN101535922B (en) | 2006-11-07 | 2007-11-07 | Electronic apparatus and cable device |
| CN2007800494207A Expired - Fee Related CN101573977B (en) | 2006-11-07 | 2007-11-07 | Transmitting device, video signal transmitting method in transmitting device, recieving device and video signal recieving method in recieving device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102256090A (en) * | 2010-05-19 | 2011-11-23 | 索尼公司 | Receiving apparatus and receiving method |
| CN103200382A (en) * | 2012-01-09 | 2013-07-10 | 上海华虹集成电路有限责任公司 | Interactive communication method of high definition multi-media interface (HDMI) transmitting terminal and receiving terminal |
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Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2950528A1 (en) * | 2006-11-07 | 2015-12-02 | Sony Corporation | Video signal transmitting device |
| US8674679B2 (en) * | 2009-10-08 | 2014-03-18 | Qualcomm Incorporated | Power saving during a connection detection |
| WO2011055265A1 (en) * | 2009-11-06 | 2011-05-12 | Koninklijke Philips Electronics N.V. | Method and apparatus for controlling settings of a device for playback of a content item |
| JP2011109398A (en) * | 2009-11-17 | 2011-06-02 | Sony Corp | Image transmission method, image receiving method, image transmission device, image receiving device, and image transmission system |
| JP5429552B2 (en) * | 2009-12-03 | 2014-02-26 | ソニー株式会社 | Control device, control method, and control system |
| CN101742156B (en) * | 2009-12-08 | 2013-01-09 | 山东泰信电子有限公司 | High-resolution digital television all-in-one machine and implementation method thereof |
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| TWI479894B (en) | 2011-12-06 | 2015-04-01 | Asmedia Technology Inc | Data transceiving apparatus with high-definition multimedia interface |
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| JP6254297B2 (en) * | 2014-03-24 | 2017-12-27 | エルジー エレクトロニクス インコーポレイティド | Data transmission / reception device and method using HDMI (registered trademark) |
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| US9215491B1 (en) * | 2014-07-10 | 2015-12-15 | Google Inc. | Methods, systems, and media for controlling a bi-directional HDMI port |
| EP3171605B1 (en) | 2014-07-18 | 2020-10-14 | Sony Corporation | Transmission device, transmission method, reception device, and reception method |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002290932A (en) * | 2001-03-27 | 2002-10-04 | Toshiba Corp | Digital broadcasting receiver and method for controlling it |
| KR100409101B1 (en) * | 2002-01-29 | 2003-12-11 | 신옥균 | Internet broadcasting relay system and method thereof for personal telecommunication terminal |
| KR100604032B1 (en) * | 2003-01-08 | 2006-07-24 | 엘지전자 주식회사 | Apparatus for supporting plural codec and Method thereof |
| CN1728794A (en) * | 2004-07-28 | 2006-02-01 | 上海乐金广电电子有限公司 | Method and device for transmitting audio signal of video source equipment |
| JP3919115B2 (en) * | 2004-08-18 | 2007-05-23 | ソニー株式会社 | DECODING DEVICE, DECODING METHOD, DECODING PROGRAM, RECORDING MEDIUM CONTAINING DECODING PROGRAM, AND REVERSE REPRODUCTION DEVICE, REVERSE REPRODUCTION METHOD, REVERSE REPRODUCTION PROGRAM, AND RECORDING MEDIUM CONTAINING REVERSE REPRODUCTION PROGRAM |
| JP4660184B2 (en) * | 2004-12-27 | 2011-03-30 | 株式会社東芝 | Signal relay apparatus and signal relay method |
| CN101171838B (en) * | 2005-04-28 | 2011-06-01 | 松下电器产业株式会社 | Lip-sync correcting device and lip-sync correcting method |
-
2007
- 2007-11-07 CN CN2007800466419A patent/CN101563921B/en not_active Expired - Fee Related
- 2007-11-07 CN CN2007800415188A patent/CN101573975B/en not_active Expired - Fee Related
- 2007-11-07 CN CN2007800414965A patent/CN101536519B/en not_active Expired - Fee Related
- 2007-11-07 CN CN200780041485.7A patent/CN101535922B/en not_active Expired - Fee Related
- 2007-11-07 CN CN2007800494207A patent/CN101573977B/en not_active Expired - Fee Related
- 2007-11-07 CN CN2007800414753A patent/CN101536518B/en not_active Expired - Fee Related
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101536518B (en) | 2012-06-20 |
| CN101535922A (en) | 2009-09-16 |
| CN101536519B (en) | 2012-04-04 |
| CN101573975A (en) | 2009-11-04 |
| CN101573977B (en) | 2013-12-25 |
| CN101563921A (en) | 2009-10-21 |
| CN101573975B (en) | 2012-06-13 |
| CN101573977A (en) | 2009-11-04 |
| CN101563921B (en) | 2011-09-07 |
| CN101536519A (en) | 2009-09-16 |
| CN101535922B (en) | 2015-05-20 |
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