CN1792091A - Display device, center device, video display system, display device control method, center device control method, display device control program, center device control program, and recording medium co - Google Patents
Display device, center device, video display system, display device control method, center device control method, display device control program, center device control program, and recording medium co Download PDFInfo
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- CN1792091A CN1792091A CNA200480013949XA CN200480013949A CN1792091A CN 1792091 A CN1792091 A CN 1792091A CN A200480013949X A CNA200480013949X A CN A200480013949XA CN 200480013949 A CN200480013949 A CN 200480013949A CN 1792091 A CN1792091 A CN 1792091A
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Abstract
A TV microcomputer (65) transmits a channel switching processing request command to a wireless center microcomputer (41) via an SS transmission/reception unit (61) and an SS transmission/reception unit (45). The wireless center microcomputer (41) returns a response indicating that the channel switching processing request command has been received to the TV microcomputer (65) via the SS transmission/reception unit (45) and the SS transmission/reception unit (61). Next, the wireless center microcomputer (41) executes a request processing (118) relating to the channel switching processing request received and transmits processing completion information indicating that the request processing has been completed to the TV microcomputer (65). Upon reception of the processing completion information, a TV main body (5) performs screen mute processing for a predetermined period of time starting at the reception time and conceals the display turbulence attributed to the delay at the channel switching, thereby reducing the screen mute time.
Description
Technical field
The present invention relates to display unit, center fixture, video display system, display-apparatus control method, center fixture control method, display unit control program, center fixture control program and write down this program recording medium.
Background technology
In recent years, acoustic image receives in the playback system (AV (Audio Visual) system), develops the device of the slim LCD of many uses, is used as the monitor (AV output device) that reproduction (demonstration) video is used.When using LCD, the big advantage that has is to be regardless of can do large scale display and still can make display itself light and approach.
Utilize this advantage, disclose that the tuner portion that for example makes television receiver separates with monitor portion and monitor portion has been transmitted the system of vision signal and audio signal from tuner portion.In this system, can connect antenna, carry out channel selection, and the audio-visual signal (AV signal) of this channel selection gained is sent to monitor with wireless mode, make audio-visual signal reproduce (for example referring to Patent Document 1,2) in the tuner portion that separates.
Here, patent documentation 1 is Japan's publication communique " patent disclosure 2001-160927 number " (open date: June 12 calendar year 2001).
In the said system, when the monitor side was carried out channel selection operation and input handover operation, the monitor side produced the order based on these operations, and sends to the tuner side.This order is to be used for making order that processing is carried out in the tuner side, that can receive and dispatch at the wireless transmitting system that makes monitor side and tuner side have incidence relation.At this moment, the monitor side sends mentioned order at interval by the wireless transmitting system official hour.
In the tuner side, then carry out operations such as channel selection and input switching according to mentioned order.In the tuner side channel selection is become stream information with the video signal conversion that obtains after input is switched, utilize to be wirelessly transmitted to the monitor side.As the processing that transforms to stream information, can enumerate for example MPEG 2 conversion process.This MPEG2 conversion process needs time to a certain degree, thus the tuner side carry out channel selection or input switch related processing during, the monitor side produces the video disorder in several seconds on screen, ugly in a jumble.Therefore, for example make screen stop the processing that several seconds, above video showed.Below, will stop the video demonstration and be called " picture disappears ".
When carrying out MPEG 2 conversion process like this, for example relevant with encoding process time of delay etc. are long with the time of delay that switching is correlated with, thereby also long in the time of monitor side generation video disorder.
Again, the monitor side can not be discerned the time point that the vision signal that receives is changed entirely after with order tuner side request channel selection and input being switched.Therefore, disappear the picture time according to the time point management of asking.Shelter the video disorder in order to utilize the picture that disappears to handle, predict the time point of no video disorder, and will lag to be used as to disappear and look like to handle the concluding time point in the time point of predicted time point.Like this, needing to disappear must be longer than the problem of the time of actual generation video disorder as time set with regard to existing.
The present invention finishes in view of the above problems, and its purpose is, provides a kind of picture time ratio that disappears that can make in the past near the video display system of the actual time that produces the video disorder etc.
Again, the present invention also aims to, provide a kind of can the grasp to disappear the picture timing and carry out the technology that reasonable time is set in display device side.
Summary of the invention
In order to achieve the above object, display unit of the present invention, carrying out video according to the video data that receives from center fixture shows, has the reception means and the disorderly cover of video that receive data from described center fixture, when obtaining described center fixture and switch the handoff association data of video switch when running information that send, that expression is relevant with this video switch running of described video data, shelter the phenomenon that described video switch running causes described video demonstration disorder by described reception means.Be correlated with in the center
Here, as the information relevant, can enumerate information, expression that expression starts the meaning of switching running and make the information etc. that information, the expression of the meaning switched finish to switch the meaning that operates with video switch running.Show disorderly method as sheltering video, can enumerate and stop that video shows (picture disappears), the video before will sheltering shows, shows with color image as rest image or describe the regulation images such as image of " please camp-on ".Wherein, preferably stop the picture processing that disappears that video shows.
According to above-mentioned composition, not when the center fixture instruction video is switched, but when obtaining the handoff association data, shelter the video switch running and cause video to show disorderly phenomenon from center fixture.Thus, can make to start the described time point of sheltering, thereby can shorten the described time of sheltering more in the past than the time point that begins near video demonstration disorder.
The data that the preferably described center fixture of described handoff association data sends when finishing described video switch.In the case, the time point of finishing the video switch running is for example switching to outside input 2 o'clock with the video input from outside input 1, equals to switch to the time point that outside input 2 backs start coding.Therefore, can make the described time point of sheltering of startup further show the time point of disorderly beginning near video.
, exist from the display unit receiving video data, to the time of delay of carrying out till video shows.Therefore, preferably according to setting the time that the disorderly cover of described video is sheltered described time of delay.
Usually, center fixture sends after with video data encoding, and display unit is the video data of received code then, with its decoding.When this encoding process comprises image Compression, encode and decipher needed time ratio other to operate the needed time long.
Therefore, when best described video data is coded data, display unit also has the decoding means that the described video data of coding is deciphered, and according to described decoding means described video data is deciphered the time that the disorderly cover of the described video of required time set is sheltered.
Video does not take place and shows disorderly in time point after experiencing described time of delay from the time point of obtaining the described handoff association time as yet.Therefore, the disorderly cover of described video starts the time point after the time point of sheltering preferably experiences described time of delay from the time point of obtaining described handoff association data.In the case, can make the described time point of sheltering of startup further show the time point of disorderly beginning near video.
When carrying out video data decoding, often in decode procedure, produce video and show disorderly.Therefore, the disorderly cover of described video starts the time point sheltered and experiences described time of delay and deduct preferably that described decoding means is deciphered the needed time with described video data and time point after time of obtaining from the time point of obtaining described handoff association data.
In order to achieve the above object, display unit of the present invention, carrying out video according to the video data that receives from center fixture shows, described video data is a described center fixture coded data in addition, and have the reception means that receive data from described center fixture, the decoding means deciphered of described video data to coding, and the disorderly cover of video, shelter the disorderly phenomenon of the described video demonstration of video switch running of switching described video data because of described center fixture, the time point that the disorderly cover of this video finishes to shelter is to set according to the time point of obtaining the 1st time mark by described reception means, produce described the 1st time mark during described video data encoding after described center fixture switches, i.e. the 1st time mark of the temporal information of synchronous usefulness is got in the decoding of carrying out as the coding that described center fixture is carried out and described code translator.
According to above-mentioned composition, set the disorderly cover of video according to the time point of obtaining the 1st time mark that produces when the described video data encoding that described center fixture is switched and finish the time point sheltered.By obtaining the 1st time mark, can understand the video data of video switch running switching and be encoded.
The video data of implementing video switch and being encoded is decoded in display unit, and according to the video data display video after the decoding.At this moment, the demonstration disorder that does not have video switch to cause.Therefore, can estimate that no video shows disorderly time point according to the time point of encoding, and by the time point that will estimate as the time point that finishes to shelter, can make the time point that finishes to shelter more in the past than the time point that finishes near video demonstration disorder, thereby can shorten the described time of sheltering.
Again, decoding means is set the moment of the decoding begin to carry out video data.Therefore, preferably start the 2nd time mark in the moment of video data decoding and set the time point that the disorderly cover end of described video is sheltered according to the time point of obtaining the 1st time mark and the described decoding means of expression.In the case, can estimate not have video more accurately according to the moment that video data begins to decipher and show disorderly time point, thereby can further shorten the described time of sheltering.
, in most cases, the user who is positioned at display device side indication Switch Video data such as use a teleswitch.Therefore, display unit preferably also has the switching command transmission control device that data are sent to the transmission means of described center fixture and control described transmission means, so that send the handoff request data that described video data is switched in request to described center fixture.
In order to achieve the above object, center fixture of the present invention, display unit is sent video data, so that this display unit display video, have the transmission means that described display unit sent data, the video switch means of the video data that switching should send, and the handoff association data of controlling described transmission means send control device, so that described video switch means are when switching the video switch running of described video data, obtain the handoff association data of the expression information relevant with this video running, and handoff association data and the described video data of obtaining sent to described display unit dividually.
Here, as the video switch means, the tuner of the video data in can considering to select to broadcast, the selector from a plurality of video datas of outside input, selected with and combination.
According to above-mentioned composition, the information that the running of Switch Video data is correlated with is delivered to display unit.Thus, can make display unit start the described time ratio of sheltering and show the time point of disorderly beginning in the past near video, thereby can shorten the described time of sheltering.
As indicated above, best described handoff association data are the data that send when described video switch means are finished described video switch.In the case, can make the described time of sheltering of startup further show the time point of disorderly beginning near video.
In order to reduce the data volume of video data again, send video data again reliably, center fixture preferably also has the coding means to coding video data, and the video data that described transmission means are encoded described coding means sends to described display unit.
In order to achieve the above object, center fixture of the present invention, display unit is sent video data, so that this display unit display video, have the transmission means that described display unit sent data, the video switch means of the video data that switching should send, coding means to described video data encoding, and the time mark of controlling described transmission means sends control device, so that the 1st time mark that produces when obtaining the video data encoding that described coding means switches described video switch means, the 1st time mark of synchronous usefulness is got in the i.e. decoding of carrying out as the coding that this coding means is carried out and described display unit, and the 1st time mark that will obtain sends to described display unit.
According to above-mentioned composition, time mark transmission means control transmission means, the 1st time mark that produces when making its video data encoding that will switch the video switch means sends to display unit.Like this, make display unit can grasp the time point of encoding, and can estimate that no video shows disorderly time point according to this time point.Therefore, be used as the time point that end is sheltered, can make the time point ratio that finishes to shelter show the time point of disorderly end near video in the past, thereby can shorten the described time of sheltering by the time point that will estimate.
, in most cases, the user who is positioned at display device side indication Switch Video data such as use a teleswitch.Therefore, center fixture preferably also has handoff request obtaining means and the video switch control device of obtaining the handoff request data of request Switch Video data from the reception means of described display unit reception data, by described reception means, be controlled to the handoff request data that obtain according to this handoff request obtaining means, described video switch means Switch Video data.
Even the center fixture of above-mentioned composition structure sends in video data and the video display system of described display unit according to described video data display video in the display unit to above-mentioned composition, also can obtain above-mentioned action effect.Can described display unit be installed at described center fixture.Also available wireless carries out the transmission of video data.
In order to achieve the above object, display-apparatus control method of the present invention, the video data that receives according to center fixture carries out the video demonstration, described display unit has the reception means that receive data from described center fixture, described center fixture is controlled, make by described reception means obtain send when described center fixture switches described video data, when representing that this video switch operates the handoff association data of related information, shelter the running of described video switch and cause described video to show disorderly phenomenon.
According to said method, not when the center fixture instruction video is switched, but when obtaining the handoff association data, shelter the video switch running and cause video to show disorderly phenomenon from center fixture.Thus, can make to start the described time point of sheltering, thereby can shorten the described time of sheltering more in the past than the time point that begins near video demonstration disorder.
In order to achieve the above object, display-apparatus control method of the present invention, the video data that receives according to center fixture carries out the video demonstration, described video data is a described center fixture coded data in addition, described display unit has from the reception means of described center fixture reception data and the decoding means that the described video data of coding is deciphered, described center fixture is controlled, so that shelter the phenomenon that the described video switch running of switching described video data causes the demonstration disorder of described video; Finishing the described time point of sheltering is to set according to the time point of obtaining the 1st time mark by described reception means, described the 1st time mark that produces during described video data encoding after described center fixture switches, i.e. the 1st time mark of the temporal information of synchronous usefulness is got in the decoding of carrying out as the coding that described center fixture is carried out and described code translator.
According to the method described above, set the disorderly cover of video according to the time point of obtaining the 1st time mark that produces when the described video data encoding that described center fixture is switched and finish the time point sheltered.By obtaining the 1st time mark, can understand the video data of video switch running switching and be encoded.Therefore, can estimate that no video shows disorderly time point according to the time point of encoding, and by the time point that will estimate as the time point that finishes to shelter, can make the time point that finishes to shelter more in the past than the time point that finishes near video demonstration disorder, thereby can shorten the described time of sheltering.
In order to achieve the above object, center fixture control method of the present invention, display unit is sent video data, so that this display unit display video, described center fixture has the transmission means that described display unit sent data, and the video switch means of switching the video data that should send, control described transmission means, so that when described video switch means are carried out the video switch running of Switch Video data, obtain the handoff association data of the expression information relevant, and handoff association data and the described video data of obtaining sent to described display unit dividually with the running of described video switch means Switch Video data.
According to said method, the information relevant with the running of Switch Video data is delivered to display unit.Thus, can make display unit start the described time point of sheltering, thereby can shorten the described time of sheltering more in the past than the time point that begins near video demonstration disorder.
In order to achieve the above object, center fixture control method of the present invention, display unit is sent video data, so that this display unit display video, described center fixture has the transmission means that described display unit sent data, the video switch means of the video data that switching should send, and to the coding means of described coding video data, control described transmission means, so that the 1st time mark that produces when obtaining the video data encoding that described coding means switches described video switch means, promptly get the 1st time mark of synchronous usefulness as being used for decoding that coding that described center fixture is carried out and described decoding means carry out, and the 1st time mark that will obtain sends to described display unit.
According to said method, control transmission means, the 1st time mark that produces when making its video data encoding that will switch the video switch means sends to display unit.Like this, make display unit can grasp the time point of encoding, and can estimate that no video shows disorderly time point according to this time point.Therefore, be used as the time point that end is sheltered, can make the time point ratio that finishes to shelter show the time point of disorderly end near video in the past, thereby can shorten the described time of sheltering by the time point that will estimate.
Available display unit control program is carried out each means of described display unit on computers.Also available center fixture control program is carried out each means of described center fixture on computers.Also can be stored in computer-readable recording medium, carry out described display unit control program and/or center fixture control program on the computer arbitrarily by making described display unit control program and/or described center fixture control program.
In sum, display unit of the present invention is not when the center fixture instruction video is switched, but when obtaining the handoff association data from center fixture, shelter video switch and operate the phenomenon that causes video demonstration disorder, thereby obtain the time point that the described time point ratio of sheltering of startup was begun near video demonstration disorder in the past, the effect that can shorten the described time of sheltering.
Shown in hereinafter, record and narrate fully understanding other purpose of the present invention, feature and advantage.In below with reference to the description of the drawings, can understand interests of the present invention.
The accompanying drawing summary
Fig. 1 is the block diagram that the composition of the television reception of an embodiment of the present invention and playback system is shown.
Fig. 2 is the block diagram of composition that the wireless center of television reception shown in Figure 1 and playback system is shown.
Fig. 3 is the block diagram of the composition of TV (TV) main body that television reception shown in Figure 1 and playback system are shown.
Fig. 4 illustrates the figure that the transceive data of receiving and dispatching in television reception shown in Figure 1 and the playback system is formed example between wireless center unit and TV main unit.
Fig. 5 illustrates the vertical view that the remote controller that TV main unit shown in Figure 3 is used is formed example.
Fig. 6 is the figure that the example of two-way communication order between wireless center unit in television reception shown in Figure 1 and the playback system and the TV main unit is shown.
Fig. 7 is with disappearing as time and disappearing as time ratio and the sequential chart that illustrates in the past in television reception shown in Figure 1 and the playback system.
Fig. 8 is that television reception and playback system that another embodiment of the present invention is shown are simplified the functional block diagram of forming structure, is to specifically illustrate the figure that handles relevant information flow with the picture that disappears.
Fig. 9 is with disappearing as time and disappearing as time ratio and the sequential chart that illustrates in the past in television reception shown in Figure 8 and the playback system.
Figure 10 illustrates as the television reception of displays separated type radio television set and the key diagram of playback system outline.
The best mode that carries out an invention
Wireless acoustic image of the present invention (AV) system has mode that acoustic image output device (monitor side) separates with wireless center (tuner side) and monitor side and tuner side mainly with the wireless system that communicates.This system, the monitor side can be by carrying out the timing information that channel selection is switched and input is switched from the tuner side-draw, the disappearing the picture processing time of the image that shows on monitor when suitably setting the Switch Video input.For example when the monitor side is carried out the request of channel hand-off process to the tuner side, timing information can be actual reception is carried out the message of channel hand-off process to the tuner side the temporal information of replying.For example, to receive the above-mentioned time of replying by the monitor side and be used as starting point, only carry out the picture that disappears of certain hour, can make the share of the time of delay (mainly being the time of delay that coding layer MPEG 2 standards cause) of the picture time shortening wireless center that disappears in the past on the principle.
Below, as the Wireless AV system of 1 preferred mode of the present invention, be example with television reception and playback system, describe with reference to accompanying drawing.Fig. 1 is the figure that the composition example of the television reception of present embodiment and playback system is shown.Fig. 2 is the functional block diagram that the composition example of the wireless center unit (tuner side device) in television reception shown in Figure 1 and the playback system is shown.Fig. 3 is the block diagram of the composition of TV (TV) main unit (monitor side device, TV side device) that television reception shown in Figure 1 and playback system are shown.Fig. 4 illustrates the figure that the transceive data of receiving and dispatching in television reception shown in Figure 1 and the playback system is formed example between wireless center unit and TV main unit.Fig. 5 illustrates the vertical view that the remote controller that TV main unit shown in Figure 3 is used is formed example.Fig. 6 is the figure that the example of two-way communication order between wireless center unit in television reception shown in Figure 1 and the playback system and the TV main unit is shown.Fig. 7 is with disappearing as time and disappearing as time ratio and the sequential chart that illustrates in the past in television reception shown in Figure 1 and the playback system.Figure 10 illustrates as the television reception of displays separated type radio television set and the key diagram of playback system outline.
As Fig. 1 and shown in Figure 10, the part of the television reception of present embodiment and playback system 1 (wireless acoustic image system, video display system) comprises wireless center unit (wireless center hereinafter referred to as) 3 as base equipment, as TV (TV) main unit (TV main body hereinafter referred to as) 5 of portable terminal device (wireless terminal).Wireless center 3 (communicator, center fixture) and TV main body 5 (communicator, display unit) constitute the wireless transmission net in couples.
As shown in figure 10, TV main body 5 internal batteries, and be wireless.Also have remote controller, can select the straighforward operation of camera seat etc. as video tape recorder.Wireless center 3 connects audio-visual equipments such as antenna, DVD player or vtr block such as BS or U/VHF etc.And, audio frequency and/or video time are sent to TV main body 5 with wireless mode from wireless center 3.Between wireless center 3 and the TV main body 5 also with the two-way transmission order of wireless mode.
As shown in Figure 1, wireless center 3 have as from digital VTR (video tape recorder), DVD (DigitalVersatile Disc: the digital multi-purpose CD) video 1 input terminal (having the S terminal) 7a, video 2 input terminals (decoder input) 7b of the terminal of the outside of equipment such as player input usefulness, video 3 input terminals (being also used as monitor/BS output) 7c, from exchanging power supply terminal that (AC) power supply 11a or automobile direct current (DC) power supply 11b power and BS terminal 15a, UHF/VHF terminal 15b, each antenna terminal of diversity terminal 15c.
On the other hand, TV main body 5 has as from video 4 input terminals (being also used as the TV lead-out terminal) 21 of the terminal of the usefulness of equipment such as digital VTR, DVD player, from the power input terminal of AC power 23a or car direct current power supply 23b power supply.
TV main body 5 is can separate with wireless center 3 and thereby internal battery is portable or thin-type display device movably; Be generalized concept, comprise for example various display unit such as liquid crystal TV set (LCD TV hereinafter referred to as), inorganic EL (electroluminescent)/OLED display, plasma scope, not limited by indication mechanism.In this specification, TV main body 5 mainly contains and shows output function and sound output function etc., and the wireless center 3 main controlled function of receiving dress control tuner portion and TV main body 5 etc.The TV main body 5 of present embodiment is that example describes thin-type display device with the LCD TV.
Between wireless center 3 and the TV main body 5, utilize the SS (SpreadSpectrum: wireless standard transceive data (video and/or audio data) spread spectrum) that abides by IEEE 802.11b standard.Therefore, utilize wireless wireless center 3 and the TV main body 5 of making to have incidence relation.Recently, as frequency band, the 5GHz frequency range obtains open, can be to use 5GHz to replace the state of 2.4GHz.
Utilize wirelessly, send MPEG (Moving Picture ExpertGroup: 2 stream information Motion Picture Experts Group) from 3 pairs of TV main bodys of wireless center 5.In addition, utilize two-way communication to transmit other order between wireless center 3 and the TV main body 5.
The composition example of wireless center (tuner side device) 2 then, is described with reference to Fig. 2.Omission is to the explanation of the component units that illustrated among Fig. 1.
As shown in Figure 2, wireless center 3 has wireless center microcomputer (microcomputer hereinafter referred to as) 41 (control devices), the 1st acoustic image selector 43 (video switch means) and spread spectrum (SS) transmitting element 45 (means of communication, transmission means, reception means) of the whole device of control.Make video 1 input terminal (outside input 1) 7a, video 2 input terminals (outside input 2) 7b and video 3 input terminals (outside input 3) 7c and acoustic image selector 43 have incidence relation.
The composition of wireless center microcomputer 41 has handoff request acquisition unit 140 (handoff request obtaining means) and handoff request is replied portion 141 (the handoff association data send control device).
Vision signal and the voice signal that carries out after the acoustic processing are input to the 1st acoustic image selector 43.The 1st acoustic image selector 43 is entered into SS Transmit-Receive Unit 45 after carrying out source selection processing according to the source select command 43a from wireless center microcomputer 41.This source is selected to handle according to source select command 43a, always selects in the information of the audio and video information of self-tuner 31,33, relevant program, the outside input information from video 1 input terminal (outside input 1) 7a, video 2 input terminals (outside input 2) 7b, video 3 input terminals (outside input 3) 7c.
The 1SS-CPU 57 that SS receiving and transmitting part 45 has A/D (mould-number) converter 51, MPEG 2 encoders 53 (coding means), 1SS transceiver 55 and they are controlled.In addition after the A/D conversion, encoded by MPEG 2 standards by A/D converter 51 with the audio-visual signal etc. that the 1st acoustic image selector 43 carries out after select to handle in the source by for example MPEG 2 encoders 53.1SS transceiver 55 is according to the TV order 57a from wireless center microcomputer 41, utilize the wireless standard of SS to send to TV main body 5, simultaneously also and utilize the two-way transmission various command of the wireless standard of SS (data) between the TV main body 5 by MPEG 2 standard coded datas.
1SS-CPU 57 receives the TV order 57a from wireless center microcomputer 41, also will send to wireless center microcomputer 41 from the TV order 57a that TV main body 5 is received simultaneously.
EEPROM (electrical erasable programmable ROM: EEPROM (Electrically Erasable Programmable Read Only Memo)) (the 1st storage part) the 47th, with the rewritable nonvolatile memory of the mode of electricity, various data such as the control program of storage wireless center microcomputer 41, communication control data.Can write the program of EEPROM47 by change, change the various characteristics of wireless center 3 and TV main body 5.That is to say, recently program ROM is taken as nonvolatile memory (for example EPROM, EEPROM), change the loss of time of mask rom to avoid each system development debugging, thereby seek to shorten in a large number program development, modification time.And, make the content that downloads and rewrite EEPROM, then can carry out the upgrading of function and the change of function easily.
The composition example of TV main body 5 then, is described with reference to Fig. 3.Omission is to the explanation of the component units that illustrated among Fig. 1.
As shown in Figure 3, TV main body 5 has the remote controller photographic department 75 of the TV microcomputer 65 (control device) relevant with the 2nd storage part (EEPROM) 73, SS Transmit-Receive Unit 61 (means of communication, reception means, transmission means), the 2nd acoustic image selector 67, the synthetic portion 93 of OSD (showing at screen), TV portion 71 (demonstration means) and the input (Fig. 5) of reception remote control (hereinafter referred to as " remote controller ").SS Transmit-Receive Unit 61 has 2SS transceiver 77, MPEG 2 decoders 81 (decoding means), D/A (number-Mo) converter 83 and their 2SS-CPU 85 of control.TV main body 5 adapts to battery-operated, has the battery charger control microcomputer 87a that battery 87b and control battery 87b discharge and recharge thereupon.
The composition of TV microcomputer 65 has the picture of disappearing portion 150 (the disorderly cover of video) and switching command generating unit 151 (switching command transmission control device).
According to receiving the indication of ordering the SS-CPU 85 of 85a from the TV of TV microcomputer 65,2SS transceiver 77 in SS Transmit-Receive Unit 61 receives the stream information that sends and press MPEG 2 standards coding from wireless center 3, after MPEG 2 decoders 81 are with its decoding, carry out the D/A conversion at D/A converter 83.Audio-visual signal after the 2nd acoustic image selector 67 carries out the D/A conversion according to the source select command 67a from TV microcomputer 65 and from which side the selection in the external input signal of video 4 input terminals (outside input 4) 21, and at the synthetic 93a of portion of OSD according to for example carrying out after OSD handles arbitrarily from the OSD output command 93a of TV microcomputer, send to TV portion 71, on the screen of TV portion 71, carry out demonstration output and voice output based on audio-visual signal.
In SS Transmit-Receive Unit 61, utilize the two-way transmission various command of the wireless standard of SS (data) between SS transceiver 77 and the TV main body 5.SS-CPU 85 receives the TV order 85a from TV microcomputer 65, also will send to TV microcomputer 65 from the TV order 85a that wireless center 3 is received simultaneously.
EEPROM (the 2nd storage part) the 73rd, the electrically rewritable non-volatile memory of various data such as the control program of storage TV microcomputer 65, communication control data.Can be written to the program of EEPROM 73 by change, change the various characteristics of TV main body 5.
Fig. 4 illustrates in the television reception of present embodiment and the playback system 1 the composition example of the transceive data of transmitting-receiving between the wireless center 3 (tuner side) and TV main body 5 (monitor side).As shown in Figure 4, the some cycles of each identical period (isocycle) 132 regulations is received and dispatched processing to transceive data 131 between 1SS transceiver 55 and 2SS transceiver 77.As shown in Figure 4,3 pairs of TV main bodys 5 as leaf (L) of wireless center as root (R) send R packet 133, behind gap 134, as 5 pairs of wireless center 3 transmission L packets 135 as root (R) of TV main body of leaf (L), behind gap 136, finish 1 identical period 132.
R packet 133 comprises part and other data division (11MHz) that uses long preamble (1Mbps).Use the part of long preamble (1Mbps) to comprise synchrodata (Sync) 141 and PHY header data (PHYHeader), its time is 192 μ s.
On the other hand, other data division has MAC header data (MAC Header) 145, control data (CB) 147, asynchronous data (Async) 151 and synchrodata (ISO Data) 153, and its time is 2828 μ s.Asynchronous data 151 is to comprise the data of delivering to the status command of TV main body 5 from wireless center 3.Synchrodata 153 is acoustic image flow datas of MPEG 2.
Identical with R packet 133, L packet 135 also comprises part and other data division (11MHz) that uses long preamble (1Mbps).Use the part of long preamble (1Mbps) identical with R packet 133, also comprise synchrodata (Sync) 161 and PHY header data (PHY Header), its time is 192 μ s.
On the other hand, to have MAC header data (MAC Header) 165, retry mark (Retry Tag) 167 and 171 its times of asynchronous data (Async) be 197.2 μ s to other data division.Asynchronous data 171 is to comprise the data of delivering to the status command of wireless center 3 from TV main body 5.
Gap (GAP) 134 is set between R packet 133 and L packet 135, and the time in gap 134 is 120 μ s.Equally, gap (GAP) 136 is set between L packet 135 and R packet 133, the time in gap 136 is 120 μ s.
More than Shuo Ming the 131 whole cycles with 3.6ms of transceive data are sent.Compare with several seconds of above-mentioned relevant delay, the time in this 3.6ms cycle is very short.
In the television reception of present embodiment and the playback system 1, use the remote controller 200 that TV main body 5 is carried out various indications to carry out channel selection and input is switched.Fig. 5 is the composition example of remote controller 200.As shown in Figure 5, remote controller 200 have inputting channel number channel input part 201, select to determine button 203, channel selection button 205, mains switch 207 and (outside) input switching key 208 up and down.Channel input part 201 has direct channel selection button, can utilize this button directly to import according to channel.Channel selection button 205 press ± carries out channel selection up and down.Select to determine that button 203 contains selection key 203a and definite button 203b.
Then, with reference to precedence diagram shown in Figure 6, be example, by wireless center microcomputer 41 and the SS Transmit-Receive Unit 45 and the SS Transmit-Receive Unit 61 of TV main body 5 and hand-off process that TV microcomputer 65 carry out of time sequence explanation in wireless center 3 with the channel hand-off process.
For example, switching command generating unit 151 by TV microcomputer 65 sends request command through the handoff request acquisition unit 140 of 45 pairs of wireless center microcomputers 41 of SS Transmit-Receive Unit of the SS of TV main body 5 Transmit-Receive Unit 61 and wireless center 3, carries out the channel hand-off process request (101,103,105) from remote controller 200.
Corresponding, wireless center microcomputer 41 will mean reply (Ack) that receive channel hand-off process request command through the SS Transmit-Receive Unit 61 of the SS of wireless center 3 Transmit-Receive Unit 45 and TV main body 5 and send TV microcomputer 65 (107,111,115) back to.Also send back to send to handle and reply 104 from 61 pairs of TV microcomputers 65 of SS Transmit-Receive Unit.During this, the TV microcomputer 65 of TV main body 5 carries out overtime supervision 117a.
During wireless center microcomputer 41 receiving channels hand-off process request commands, carry out the request corresponding and handle 118 with the order of receiving.When 118 execution was handled in the request finished, the switching of wireless center microcomputer 41 was finished the form that the portion of replying 141 replys with processing and is passed on the information of finishing dealing with (121,123,125) that the request of executing is handled that means to TV microcomputer 65.
In the present embodiment, when 5 these information processings of finishing dealing with of reception of TV main body are replied, TV microcomputer 65 to disappear as portion 150 be starting point with this time point, the video that shows on TV portion 71 screens is carried out the image processing of the time that EEPROM 73 grades store in advance, thereby the picture that disappears of the demonstration disorder that the delay when sheltering channel and switching causes is handled.
According to for example sending and press the decoding time of the vision signal of MPEG 2 standards coding, set this time in TV main body 5 from wireless center 3.For example, can set the time longer for than decoding time.Become decoding time to add other time of delay of TV main body 5 this time set, but this is chronic, then shorten the effect that disappears as the time and reduce, thereby can be by setting adding suitable value (for example to adding surplus to a certain degree the time of delay of prediction) other time of delay.In fact, before the TV of TV main body 5 71 display videos, receiving to handle to reply always and passing on 125, handling preceding delay so exist vision signal to obtain deciphering.Therefore, the starting point that the picture that disappears the is handled share of this delay that only lags.
Then, with reference to Fig. 7, one side with in the past disappear the picture timing ratio, the picture timing that disappears of the television reception that one side illustrates present embodiment and playback system 1.In TV main body 5 sides, operate the timing generation image signal of operating in this channel selection that disappears in the past once carry out channel selection with remote controller 200 grades, thereby regularly start the picture that disappears (Fig. 2 (b), (d)) at this.
In contrast, in the television reception of present embodiment and the playback system 1,3 pairs of TV main bodys 5 of wireless center deliver to that the channel selection operation signal of wireless center 3 is actual to carry out the channel selection running, and its result sent to TV main body 5 as answer signal, 5 of TV main bodys produce the image signal that disappears in the timing of receiving described answer signal, thereby regularly start the picture that disappears (Fig. 7 (a), (c), (e)) at this.Therefore, by can understand with reference to figure 2 from TV main body 5 carry out channel selection operation, to wireless center 3 actual carry out that channel selection operates during the picture that do not disappear, so can make the start delay of the picture that disappears.
In the television reception of present embodiment and the playback system 1, carry out that channel selection is switched and after outside input switches the indication of usefulness in TV main body 5 sides, the time point of replying that actual reception is carried out encoding process from meaning of wireless center 3 is set at and starts the starting point that the picture that disappears is handled.Thus, can obtain relevant disappearing in TV main body 5 sides, and disappear as handling, so can obtain setting the benchmark that disappears and use as the time according to this information as the information of the starting point of handling.Therefore, needn't add extra margin, have the effect that can shorten the picture time that disappears.
Then, with reference to Fig. 8 and Fig. 9 the television reception and the playback system of another embodiment of the present invention are described.Also suitably with reference to figure 1～Fig. 6.To have with above-mentioned execution mode in the identical symbol of composition mark of the composition identical functions that illustrates, omit its explanation.
The television reception of present embodiment and playback system 1, it is characterized by: wireless center 3 has the time tag information acquisition unit of obtaining the 1st time tag information when the broadcast message encoding process, and has the function that the 1st time tag information that this one is obtained or predicted value are delivered to TV main body 5 sides.Its feature also has 2 points: the 2nd time tag information of decoder side is outputed to TV microcomputer 65; Disappear picture regularly according to the 1st time tag information and the control of the 2nd time tag information.
(Transport Stream: carve on time in control data transport stream), and deliver to decoder at interval with certain hour by As-received at MPEG 2 TS for MPEG 2 encoders.MPEG 2 encoders are the time mark to establishment fiducial time of MPEG2 TS packet set basis in when coding.On the other hand, MPEG 2 decoders compare constantly to time mark and the described benchmark of MPEG 2 TS that receive, begin to decipher when both are consistent.
Fig. 8 illustrates the functional block diagram (figure corresponding with Fig. 1) that the simplification of the television reception of present embodiment and playback system 1 is formed, and illustrates and the relevant information flow of picture processing that disappears.In the data packet group precedent shown in Figure 4, from delivering to the R packet 133 of TV main body 5 (L), wireless center 3 (R) comprises synchrodata (information flow) 153 by MPEG 2 standards coding.In this synchrodata (information flow) 153, enroll information is carried out the 1st time tag information that time management is used by MPEG 2 standards coding.
The 1st time tag information specifically is meant PCR (Program Clock Reference: timer reference of programs).PCR is meant to set and proofread and correct becomes STC (the System TimeClock: the information that value system clock) is used of benchmark constantly in MPEG 2 decoders 81.MPEG 2 decoders 81 are that benchmark operates with the value of STC, but by with the PCR that is programmed in the synchrodata 153 this STC being set and proofreaies and correct, can obtain with MPEG 2 encoders 52 synchronous.
Therefore, as shown in Figure 8, for example the time mark acquisition unit 142 of wireless center microcomputer 41 (time mark transmission control device) is obtained the 1st time tag information that enrolls in the TV information data of MPEG 2 standard synchrodatas as coding in MPEG 2 encoders 53 (i, ii) by 1SS-CPU 57.Then, the 1st time tag information that will obtain of wireless center microcomputer 41 is delivered to TV main body 5 (iii, iv, v) by 1SS-CPU 57 from 1SS transceiver 55.The 1st time tag information of delivering to TV main body 5 is delivered to TV microcomputer 65 from 2SS transceiver 22 by 2SS-CPU 85, and (vi, vii) is stored in the storage part 65a of TV microcomputer 65.
On the other hand, will deliver to MPEG 2 decoders 81 (I, II, III) from 1SS transceiver 55 through the 2SS transceiver 77 of TV main body 5 by the video flowing of MPEG 2 standards coding.Synchronous data flow after MPEG 2 decoders 81 will be deciphered is delivered to the outside lead-out terminal 88 of MPEG 2 decoders 81.On the other hand, MPEG 2 decoders 81 are delivered to TV microcomputer 65 (a, b) with the 2nd time tag information through 2SS-CPU 85 according to MPEG 2 data of input.
The 2nd time mark specifically is meant DTS (Decoding Time Stamp: the decoding time mark).DTS is meant the decoding information constantly of managing video signal in MPEG 2 decoders 81.MPEG 2 decoders 81 begin to carry out the decoding of vision signal when above-mentioned DTS is consistent with above-mentioned STC.That is, in DTS, receive the moment of regulation, and moment of STC timing when arriving the moment of setting among the DTS, the decoding of vision signal started.
Fig. 9 is disappearing as time and disappearing as time ratio and the sequential chart that illustrates in the past the television reception of present embodiment and playback system.Signal shown in Fig. 9 (a) and (b), (c) is identical with the signal shown in Fig. 7 (a) and (b), (c) respectively, thereby omits its explanation.The image signal that disappears is in the past pre-estimated the MPEG required time of 2 decodings, according to the time set reasonable time of this estimation, through finishing to disappear picture (Fig. 9 (e)) after the time of this setting.
In contrast, in television reception of the present invention and the playback system 1, obtain the timing that MPEG 2 decoders 81 start video data decoding according to the above-mentioned the 1st and the 2nd time tag information, at this picture that regularly finishes to disappear (Fig. 9 (d), (f)).Therefore,, carry out the channel selection running from wireless center 3 is actual, aim at regularly and finish starting video data decoding place, thereby can be optimized to the picture time omission dead time that disappears with regard to understanding the picture that disappears with reference to figure 9.
The television reception of present embodiment and playback system 1 obtain the time tag information that actual coding is handled or decoding is handled that is used for MPEG 2, disappear picture regularly according to the time tag information control that obtains, thereby can correctly determine to disappear picture regularly.
So far, the television reception playback system in the wireless acoustic image of the present invention system is illustrated embodiment and is illustrated, but the invention is not restricted to these explanations.So long as the business personnel of this area just may be in not breaking away from the scope that the present invention will refer to the composition of the present invention or the function various conversion and the improvement in addition of the respective embodiments described above or other execution mode.
For example, in the above-mentioned execution mode, be that example is illustrated with television reception and playback system, but also can be used for other acoustic image system.Again according to utilizing the wireless audio-visual equipment examples of applications of setting up incidence relation to be illustrated, but also can be used to utilize the in addition audio-visual equipment of networking such as wired grade certainly.About hand-off process, the example that the picture that disappears is handled has been described, but also can have carried out other Video processing.
Carry out channel selection or input switching from remote controller 200 in the above-mentioned execution mode, but also can consider wireless center 3 automatic switchover video datas.At this moment, do not need to receive and dispatch the handoff request order and reply.
In the above-mentioned execution mode, portable TV is used as wireless audio-visual equipment, but is not limited to the TV receiver, also can be used for the device that has radio communication function or merge this function.For example, as audio-visual equipment, except that VTR (Video Tape Recorder: video tape recorder), can also be record reproducing device to HDD and DVD record.But as the device of transceive data, can be to be the device of the fusion information equipment function of representative with the personal computer, can be used for all systems.The content of transceive data, which kind of content can.
In the present embodiment, be illustrated with the TV receiver, but be not limited thereto, also can be used for such other audio-visual equipment that uses tuner and personal computer or use tuner as indicated above.
Constitute the type of type, set information of each handling part etc. of above-mentioned radio communication device and wireless acoustic image system and standard etc. and also be not limited to above-mentioned execution mode.Especially be suitable for abideing by HAVi (Home Audio/Video Interoperability: equipment family expenses acoustic image interoperability).
As tuner, two kinds of broadcasting of lifting BS tuner and UHF/VHF tuner as an example, but broadcast type such as CS (communication satellite) tuner, CATV (cable TV) tuner and quantity are not limited to this example.
Use the title of television reception and playback system in the present embodiment, this is for convenience of description, also can be: Wireless Telecom Equipment, audio-visual equipment, apparatus control system etc.
More than the wireless acoustic image system of explanation also can be realized with the program that is used to make this wireless acoustic image system to work.Leave this program in computer-readable recording medium.Among the present invention, as this recording medium, can make main storage originally as program medium, also can be that the setting program reading device is as external memory and by recording medium being inserted the program medium that can read in this device.
Can be that CPU visits and carry out the structure of the program of depositing in both cases, maybe can be read routine and the program of reading downloaded to unshowned program storage area to carry out the mode of this program all under the both of these case.Deposit the program that this downloads usefulness in advance at agent set in advance.
Here, the said procedure medium be constitute can with body portion from recording medium, can be the medium of fixedly carrying program, comprising the semiconductor memory of the card class of dish class, IC-card and the light-card etc. of disk such as band such as tape and cartridge tape class, FLOPPY (registered trade mark) dish and hard disk and CD-ROM, MO, CDs such as MD, DVD or mask rom, EPROM, EEPROM, quick erasable ROM etc.
Though not shown, have can be with means that external communication network is connected the time, this recording medium also can be to communicate to connect the flow medium of carrying program of mode that means download from communication network by this.
When communication network downloads, can deposit this download program at agent set in advance, or pack into like this from other recording medium.Content as recording medium is deposited is not limited to program, also can be data.
Present embodiment does not limit scope of the present invention, can do various comprising within the scope of the present invention, and it is as follows for example to form the present invention.
The composition of wireless acoustic image of the present invention system comprises and has the tuner portion that carries out channel selection and carry out broadcast message that this tuner portion selects and the wireless center of the 1st receiving and transmitting part of the transmitting-receiving of the order data that comprises that handoff association that the channel selection of described tuner portion is handled is handled is carried out in request, and the acoustic image output device, the latter has display part, accept to impel and carry out the input part that described handoff association is handled the input of usefulness, receive described broadcast message and simultaneously can and described the 1st receiving and transmitting part between the 2nd receiving and transmitting part of transmitting-receiving order data, be transformed into the transformation component of the order data that can between described the 1st receiving and transmitting part and described the 2nd receiving and transmitting part, transmit according to described input operation, and obtain from described wireless center and to carry out the related timing information of the timing handled based on the described handoff association of described order data and to shelter the control part that handoff association is handled the Video processing switching timing of the disorderly usefulness of demonstration that the delay that brings causes according to this timing information control that obtains.
The composition of wireless acoustic image of the present invention system is in above-mentioned composition, and described Video processing comprises that to make video be the processing of picture state of disappearing.
The composition of wireless acoustic image of the present invention system is in the above-mentioned composition, described control part is controlled according to the described order data that described acoustic image output device sends, and is used as starting point is only carried out described display part during the 1st time disappearing picture hand-off process so that described acoustic image output device will mean the time point of replying of finishing described handoff association processing from described wireless center reception.
The composition of wireless acoustic image of the present invention system is in above-mentioned composition, and described the 1st time is to consider the time delay beyond the decoding time of the described broadcast message decoding of the coding that described acoustic image output device sends described wireless center and decoding are handled and time of determining.
The composition of wireless acoustic image of the present invention system is in above-mentioned composition, and described control part is controlled to from carrying out the picture hand-off process that disappears of described display part after described starting point begins to experience for the 1st time.
The composition of wireless acoustic image of the present invention system is in above-mentioned composition, and the time delay of the described acoustic image output device side beyond handling according to described decoding determines described the 1st time.
Acoustic image output device of the present invention constitutes and has the tuner portion that carries out channel selection and carry out broadcast message that this tuner portion selects and the wireless center of the 1st receiving and transmitting part that the transmitting-receiving of the order data that comprises that handoff association that the channel selection of described tuner portion is handled is handled is carried out in request has incidence relation, and has display part, accept to impel and carry out the input part that described handoff association is handled the input of usefulness, receive described broadcast message and simultaneously can and described the 1st receiving and transmitting part between the 2nd receiving and transmitting part of transmitting-receiving order data, be transformed into the transformation component of the order data that can between described the 1st receiving and transmitting part and described the 2nd receiving and transmitting part, transmit according to described input operation, and obtain the related timing information of timing that described handoff association handles and shelter the control part that handoff association is handled the Video processing switching timing of the disorderly usefulness of demonstration that the delay that brings causes according to this timing information control that obtains from described wireless center.
Wireless center of the present invention constitutes and has display part and the request of accepting is carried out and comprised that handoff association that channel selection is handled handles the acoustic image output device of input part of the input operation of usefulness and have incidence relation, and has the tuner portion that carries out channel selection and carry out broadcast message that this tuner portion selects and the 1st receiving and transmitting part of the transmitting-receiving of the order data that comprises that handoff association that the channel selection of described tuner portion is handled is handled is carried out in request.
The composition of wireless acoustic image of the present invention system comprises to have the tuner portion that carries out channel selection and receive broadcast message that this tuner portion selects and comprises order data that handoff association that the channel selection of described tuner portion is handled is handled and the wireless center that sends the 1st receiving and transmitting part of the 1st time tag information of obtaining when described broadcast message is made encoding process simultaneously with ask to carry out with this broadcast message relatedly, and the acoustic image output device, the latter has display part, accept to impel and carry out the input part that described handoff association is handled the input of usefulness, receive described broadcast message and simultaneously can and described the 1st receiving and transmitting part between the 2nd receiving and transmitting part of transmitting-receiving order data, be transformed into the transformation component of the order that can between described the 1st receiving and transmitting part and described the 2nd receiving and transmitting part, transmit according to described input operation, when encoding, described broadcast message obtains the time tag information acquisition unit of the 1st time tag information from described wireless center, and the control part of controlling the picture switching timing that disappears according to the 1st time tag information of obtaining.
The composition of wireless acoustic image of the present invention system is in above-mentioned composition, also has in described wireless center to obtain described the 1st time tag information during to described broadcast message coding and send to the function of described acoustic image output device side.
The composition of wireless acoustic image of the present invention system is in above-mentioned composition, the 2nd time tag information control that described control part is obtained during according to the decoding of making described broadcast message in described the 1st time tag information and the described acoustic image output device picture switching timing that disappears.
Wireless center of the present invention constitutes with having display part and accept to impel to carry out and comprises that handoff association that channel selection is handled handles the acoustic image output device of input part of the input operation of usefulness and have incidence relation, and has the tuner portion that carries out channel selection according to described input operation, carry out broadcast message that this tuner portion selects and request and carry out the 1st receiving and transmitting part of the transmitting-receiving of the order data that comprises that handoff association that the channel selection of described tuner portion is handled is handled, and described the 1st time mark information when obtaining and send to the function of described acoustic image output device to described broadcast message coding.
Acoustic image output device of the present invention constitutes and has the tuner portion that carries out channel selection and carry out broadcast message that this tuner portion selects and the wireless center of the 1st receiving and transmitting part that the transmitting-receiving of the order data that comprises that handoff association that the channel selection of described tuner portion is handled is handled is carried out in request has incidence relation, and has display part, described tuner portion accepted to impel carry out the input part that described handoff association is handled the input of usefulness, receive described broadcast message and simultaneously can and described the 1st receiving and transmitting part between the 2nd receiving and transmitting part of transmitting-receiving order data, be transformed into the transformation component of the order data that can between described the 1st receiving and transmitting part and described the 2nd receiving and transmitting part, transmit according to described input operation, and when making the encoding process of described broadcast message, obtain the 1st time tag information is also controlled the picture switching timing that disappears according to the 1st time tag information of obtaining control part from described wireless center.
The composition of wireless acoustic image of the present invention system is in above-mentioned composition, and described handoff association is handled and also comprised the input hand-off process.
The picture time determining method that disappears of the present invention, be that decision disappears as time method in the acoustic image output device, this acoustic image output device utilizes wireless wireless center with the tuner portion with channel selection of carrying out relevant broadcast message to have incidence relation, and have display part and accepting and impel to carry out and comprise that the handoff association that the channel selection of described tuner portion is handled handles the input part of the input operation of usefulness, described disappear to have to impel as the time determining method carry out the 1st step that handoff association processing command that handoff association handles is delivered to described wireless center side, and obtain the timing information of the timing that relevant described handoff association handles and the 2nd step that disappears and use according to this timing information decision that obtains as switching timing from described wireless center side.
Of the present invention to disappear as the time determining method be in said method, described acoustic image output device received to mean carry out the time point of replying that described handoff association handles in described wireless center and be used as starting point, determine described disappearing to look like switching timing.
Of the present invention to disappear as the time determining method be in said method, and described disappearing as switching timing is to postpone the part-time time in the time of described broadcast message decoding from described starting point.
The picture time determining method that disappears of the present invention, be that decision disappears as time method in the acoustic image output device, this acoustic image output device utilizes wireless wireless center with the tuner portion with channel selection of carrying out relevant broadcast message to have incidence relation, and have display part and accepting and impel to carry out and comprise that the handoff association that the channel selection of described tuner portion is handled handles the input part of the input operation of usefulness, described disappearing has the 1st step of the 1st time tag information of obtaining when described wireless center receives the encoding process of making described broadcast message as the time determining method, and according to disappear the 2nd step of picture switching timing of the 2nd time tag information of obtaining when the described broadcast message coding and the control of described the 1/th time tag information.
The composition of wireless acoustic image of the present invention system comprises and has the tuner portion that carries out channel selection and carry out broadcast message that this tuner portion selects and the tuner side device of the 1st receiving and transmitting part of the transmitting-receiving of the order data that comprises that handoff association that the channel selection of described tuner portion is handled is handled is carried out in request, and the acoustic image output device, the latter forms and can separate and have display part with this tuner side device, accept to impel and carry out the input part that described handoff association is handled the input of usefulness, receive described broadcast message and simultaneously can and described the 1st receiving and transmitting part between the 2nd receiving and transmitting part of transmitting-receiving order data, be transformed into the transformation component of the order data that can between described the 1st sending part and described the 2nd sending part, transmit according to described input operation, and obtain from described wireless center and to carry out the related timing information of the timing handled based on the described handoff association of described order data and to shelter the control part that handoff association is handled the Video processing switching timing of the disorderly usefulness of demonstration that the delay that brings causes according to this timing information control that obtains.
According to said system, can carry out Video processing in the mode that the delay that encoding process causes is separately added in the delay of tuner side, thereby can make the Video processing time shorten described delay share.Described control part preferably is controlled to from carrying out the picture hand-off process that disappears of described display part after described starting point experienced for the 1st time.Like this, can shorten the picture time that disappears.
In the wireless acoustic image of the present invention system, when acoustic image output device (TV main body) side is imported with hand-off process such as channel selections, can know the timing that the picture that disappears of the disorderly usefulness of image of sheltering the delay that causes based on the processing of MPEG 2 encoders etc. is handled preferably in TV main body side precision, thereby can suitably set the picture time that disappears.
In " best mode that carries out an invention " one joint the embodiment of doing or embodiment all belong to the record of illustrating the technology of the present invention content, should not only limit to this concrete example narrow definition the present invention, can in the scope of the present invention spirit and claims of then recording and narrating, do various conversion and put into practice.
Industrial practicality
Wireless system of the present invention is fit to transmit with wireless mode for example display of video and/or audio data Divergence type radio television set family expenses acoustic image net system. Be not limited thereto, also be widely used in portable telephone, PHS (Personal Handy-Phone System: personal handyphone system) (registration mark), mobile information The Wireless Telecom Equipments such as terminal (PDA).
Claims (26)
1, a kind of display unit is carried out video according to the video data that receives from center fixture and is shown, it is characterized in that having
From described center fixture receive data the reception means and
Control the control device of this device running,
This control device has when obtaining expression and described center fixture and switch the handoff association data of the relevant information of the video running of described video data by described reception means, shelters described video switch running and causes described video to show the video disorder cover of the phenomenon of disorder.
2, the display unit described in claim 1 is characterized in that,
Described handoff association data are data that expression finishes the meaning of described video switch running.
3, the display unit described in claim 1 is characterized in that,
According to beginning to the time of delay of carrying out till video shows, set the time that the disorderly cover of described video is sheltered from receiving described video data.
4, the display unit described in claim 1 is characterized in that,
Also has the decoding means that the described video data behind the coding is deciphered;
With the described required time of video data decoding, set the time that the disorderly cover of described video is sheltered according to described decoding means.
5, the display unit described in claim 1 is characterized in that,
The disorderly cover of described video starts the time point of sheltering, and is to experience by the time point that receives after described video data plays the time of delay of carrying out till video shows from the time point of obtaining described handoff association data.
6, the display unit described in claim 1 is characterized in that,
Also has the decoding means that the described video data behind the coding is deciphered;
The disorderly cover of described video starts the time point of sheltering, and is the time point that deducts from the time point experience that obtains described handoff association data from described time of delay after the time that described decoding means obtains the described video data required time of decoding.
7, a kind of display unit is carried out video according to the video data that receives from center fixture and is shown, it is characterized in that having
From described center fixture receive data the reception means,
To the decoding means deciphered of described video data of coding and
Control the control device of this device running,
This control device has shelters video running that described center fixture switches described video data and causes described video to show the disorderly cover of video of disorderly phenomenon,
The time point of the 1st time mark that produces during according to the described coding video data obtained by described reception means after described center fixture switched is set the disorderly cover of this video and is finished the time point sheltered.
8, the display unit described in claim 7 is characterized in that,
According to 2nd time mark of the time point of obtaining the 1st time mark, set the time point that the disorderly cover end of described video is sheltered with the moment of the decoding of representing described decoding means startup video data.
9, the display unit described in claim 1 or 7 is characterized in that,
The disorderly cover of described video stops by the demonstration that makes described video, shelters described video and shows disorderly.
10, the display unit described in claim 1 or 7 is characterized in that,
Also have the transmission means that data sent to described center fixture,
The switching command that described control device also has the described transmission means of control sends control device, so that send the handoff request data that described video data is switched in request to described center fixture.
11, a kind of center fixture sends video data to display unit, so that this display unit display video is characterized in that having
To described display unit send data the transmission means,
The video switch means of the video data that switching should send and
Control the control device of the running of this device,
The handoff association data that this control device has the described transmission means of control send control device, so that obtain the handoff association data of the expression information relevant with the running of described video switch means Switch Video data and the handoff association data that obtain are sent to described display unit.
12, the center fixture described in claim 11 is characterized in that,
Described handoff association data are data that expression finishes the meaning of described video switch running.
13, the center fixture described in claim 11 is characterized in that,
Also have coding means to coding video data,
The video data that described transmission means are encoded described coding means sends to described display unit.
14, a kind of center fixture sends video data to display unit, so that this display unit display video is characterized in that having
To described display unit send data the transmission means,
The video switch means of the video data that switching should send,
To the coding means of described video data encoding and
Control the control device of the running of this device,
The time mark that this control device has the described transmission means of control sends control device, so as the 1st time mark that produces when obtaining the video data encoding that described coding means switches described video switch means, and the 1st time mark that will obtain send to described display unit.
15, the center fixture described in claim 11 or 14 is characterized in that,
Also have the reception means that receive data from described display unit, and
Described control device also has
Obtain by described reception means request Switch Video data the handoff request data the handoff request obtaining means and
The video switch control device is controlled to the handoff request data that obtain according to this handoff request obtaining means, described video switch means Switch Video data.
16, the center fixture described in claim 11 or 14 is characterized in that,
Described video switch means are tuners that the video data in the broadcasting is carried out channel selection.
17, the center fixture described in claim 11 or 14 is characterized in that,
Described video switch means are selectors of selecting from a plurality of video datas of outside input.
18, a kind of video display system is characterized in that,
Each described center fixture sends to each described display unit in the claim 1 to 10 with video data in the claim 11 to 17, and described display unit is according to described video data display video.
19, the video display system described in claim 18 is characterized in that,
Described center fixture can be installed described display unit.
20, a kind of display-apparatus control method, the video data that receives according to center fixture carries out the video demonstration, it is characterized in that,
Described display unit has the reception means that receive data from described center fixture,
Described center fixture is controlled, so that when obtaining expression and switching handoff association data described video data, relevant with the video switch running by described reception means, shelters the phenomenon that described video switch running causes described video demonstration disorder.
21, a kind of display-apparatus control method, the video data that receives according to center fixture carries out the video demonstration, it is characterized in that,
Described display unit has
From described center fixture receive data the reception means and
To the decoding means deciphered of described video data of coding,
Described center fixture is controlled, so that shelter the phenomenon that the described video switch running of switching described video data causes the demonstration disorder of described video;
According to the time point of obtaining the 1st time mark that produces when described video data that described center fixture will switch is encoded by described reception means, set and finish the described time point of sheltering.
22, a kind of center fixture control method sends video data to display unit, so that this display unit display video is characterized in that,
Described center fixture has
To described display unit send data the transmission means and
The video switch means of the video data that switching should send,
Control described transmission means,, and the handoff association data that obtain are sent to described display unit so that obtain the handoff association data of the expression information relevant with the running of described video switch means Switch Video data.
23, a kind of center fixture control method sends video data to display unit, so that this display unit display video is characterized in that,
Described center fixture has
To described display unit send data the transmission means,
The video switch means of the video data that switching should send and
To the coding means of described coding video data,
Control described transmission means, so that the 1st time mark that produces when obtaining the video data encoding that described coding means switches described video switch means, and the 1st time mark that will obtain sends to described display unit.
24, a kind of display unit control program is characterized in that,
Be used for making each described display unit running of claim 1 to 10, and described control device is worked as computer.
25, a kind of center fixture control program is characterized in that,
Be used for making each described center fixture running of claim 11 to 17, and described control device is worked as computer.
26, a kind of computer-readable recording medium is characterized in that,
The display unit control program of record described in claim 24 and/or the center fixture control program described in claim 25.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP113363/2003 | 2003-04-17 | ||
| JP2003113363 | 2003-04-17 | ||
| JP118357/2004 | 2004-04-13 |
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| CN1792091A true CN1792091A (en) | 2006-06-21 |
| CN100382581C CN100382581C (en) | 2008-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200480013949XA Expired - Fee Related CN100382581C (en) | 2003-04-17 | 2004-04-15 | Display device, center device, video display system, display device control method, center device control method, display device control program, center device control program, and recording medium co |
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| CN (1) | CN100382581C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103650517A (en) * | 2011-07-15 | 2014-03-19 | 夏普株式会社 | Television receiver apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2258823A1 (en) * | 1998-01-13 | 1999-07-13 | Mitsubishi Consumer Electronics America, Inc. | Fast tuner system |
| JP2001285736A (en) * | 2000-03-31 | 2001-10-12 | Canon Inc | Television broadcasting receiver, television broadcasting reception system, television broadcasting reception method and storage medium |
| JP2001292381A (en) * | 2000-04-04 | 2001-10-19 | Canon Inc | Receiving device, reception system, receiving method and storage medium |
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2004
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103650517A (en) * | 2011-07-15 | 2014-03-19 | 夏普株式会社 | Television receiver apparatus |
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| Publication number | Publication date |
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| CN100382581C (en) | 2008-04-16 |
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