CN100423576C - A video audio output device shared system - Google Patents
A video audio output device shared system Download PDFInfo
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- CN100423576C CN100423576C CNB031787835A CN03178783A CN100423576C CN 100423576 C CN100423576 C CN 100423576C CN B031787835 A CNB031787835 A CN B031787835A CN 03178783 A CN03178783 A CN 03178783A CN 100423576 C CN100423576 C CN 100423576C
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Abstract
The present invention relates to a system of sharing video-audio output devices, which can make a plurality of video-audio display devices share the video-audio output of the same source. The system comprises a selection component of video-audio devices, a transmission component of video-audio signals, a reception component of video-audio signals, a transmission component of remote control commands, and a reception component of remote control commands, wherein the selection component of video-audio devices is used for connecting a video-audio output device to be shared and a simulative or digital video-audio signal source for switching and selecting the video-audio output device to be used for transmitting the signal source to the reception component of video-audio signals; the transmission component of video-audio signals is used for converting the original digital or simulative signal format of a video-audio signal selected by the selection component of video-audio devices into other digital or simulative signal formats; the reception component of video-audio signals is used for receiving the signal transmitted by the transmission component of video-audio signals; the transmission component of remote control commands is used for transmitting an operation control command of the selected video-audio output device in the digital or simulative signal format to the reception component of remote control commands; the reception component of remote control commands is used for receiving and interpreting the signal of the operation control command, and the signal is transmitted by the transmission component of remote control commands.
Description
Technical field
The present invention relates to a kind of system that can shared video and audio output device, with so that a plurality of audio-visual display unit can be shared same audio-visual output signal, can be applicable to the signal communications, can be applicable to technical fields such as wired or wireless TV broadcast, wireless communication propagation, video telecommunication meeting, internet video propagation, family or enterprise's audio-visual devices configuration especially.
Background technology
Existing video and audio output device is as card box video tape recorder VCR (Video Cassette Recorders; Hereinafter to be referred as VCR), digital audio-video CD-ROM device DVD (Digital Video Disc; Hereinafter to be referred as DVD), PC PC (hereinafter to be referred as PC) etc., when the different audio-visual display unit in a certain scope place (TV in each room or screen in as one family) in the time of will using, otherwise just must all install the video and audio output device that will use of cover, so then take high because of repeating to purchase in each different audio-visual display unit; Be connected on the audio-visual display unit that to use otherwise just these video and audio output device must be re-moved to reinstall at every turn, so then very trouble inconvenience.
Summary of the invention
Therefore, the objective of the invention is at above-mentioned shortcoming, a kind of system that can shared video and audio output device is provided, can realize: the different audio-visual display unit of each in certain scope place can be shared a cover video and audio output device, thereby save the cost that repeats to purchase shared video and audio output device, or install the trouble of shared video and audio output device at every turn again.
To achieve these goals, the invention provides a kind of system that can shared video and audio output device, comprising:
One AV device alternative pack is in order to connect to want shared video and audio output device and to switch the analog or digital video-audio signal source of selecting the video and audio output device that wherein will use;
One video-audio signal transmit block, in order to selected this video-audio signal of AV device alternative pack with the signal format of former numeral or simulation or be converted to the signal format of other numerals or simulation, by wired or wireless load mode, send to the video-audio signal receiving-member;
A plurality of video-audio signal receiving-members, in order to receive the signal that the video-audio signal transmit block sends over respectively, and with its reduction or convert the acceptable video-audio signal form of a plurality of audio-visual display unit that is connected on described a plurality of video-audio signal receiving-member to, and be sent to respectively on described a plurality of audio-visual display unit;
One guidance command transmit block, in order to will be to the operation control command of this selecteed video and audio output device signal format with numeral or simulation, send to the guidance command receiving-member by wired or wireless load mode, to replace original remote controller of this video and audio output device or operating means; And
One guidance command receiving-member in order to the operation control command signal that receives and decipher guidance command transmit block sends over, and is complied with its order this selecteed video and audio output device is sent corresponding operation control command.
The invention has the beneficial effects as follows, utilize system that can shared video and audio output device of the present invention, the different audio-visual display unit of in certain scope place each can be shared a cover video and audio output device, thereby save the cost that repeats to purchase shared video and audio output device, or install the trouble of shared video and audio output device at every turn again.
The invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is a system architecture diagram of the present invention; And
Fig. 2 is the Organization Chart of the present invention's sharing criteria TV signal output device preferred embodiment on cable of cable TV.
Wherein, description of reference numerals is as follows:
101: the AV device alternative pack
102: video and audio output device
103: the video-audio signal transmit block
104: the video-audio signal receiving-member
105: audio-visual display unit
106: the guidance command transmit block
107: the guidance command receiving-member
201: the cable TV head end
202: other users
203: separator
204: the one way signal spacer assembly of this end subscriber
205: distributor
206: signal mixer
207: TV signal modulator
208: remote controller
209: television set
210: Digiplex
211: wireless receiver
212:USB interface communication device
213: the infrared ray simulating emitter
214：PC
215：DVD
Embodiment
System of the present invention, as shown in Figure 1, it includes:
1. an AV device alternative pack 101 is in order to connect the video and audio output device 102 of wanting shared and to switch the analog or digital video-audio signal source of selecting the video and audio output device 102 that wherein will use;
2. a video-audio signal transmit block 103, in order to AV device alternative pack 101 selected these video-audio signals with the signal format of former numeral or simulation or be converted to the signal format of other numerals or simulation, by wired or wireless load mode, send to video-audio signal receiving-member 104;
3. a video-audio signal receiving-member 104, in order to receive the signal that video-audio signal transmit block 103 sends over, and with its reduction or convert the audio-visual display unit 105 acceptable video-audio signal forms that are connected on this video-audio signal receiving-member 104 to, and be connected on this audio-visual display unit 105;
4. a guidance command transmit block 106, in order to will be to the operation control command of this selecteed video and audio output device 102 signal format with numeral or simulation, send to the guidance command receiving-member by wired or wireless load mode, to replace this video and audio output device 102 original remote controller or operating means; And
5. a guidance command receiving-member 107 in order to the operation control command signal that receives and decipher guidance command transmit block sends over, and is complied with its order this selecteed video and audio output device 102 is sent corresponding operation control command.
When the audio-visual display unit more than a group will be used video and audio output device different more than a group simultaneously, native system can further comprise:
1. increase by one group of above AV device alternative pack to switch the video and audio output device of selecting more than a group;
2. increase by one group of above video-audio signal transmit block with this selecteed video-audio signal more than one group is modulated to different frequency bands with modulating device with this each video-audio signal or with signal multiplex (MUX) device with this each video-audio signal in multiplex's mode, be carried in same transfer path simultaneously;
3. audio-visual display unit of using in each group respectively increases by one group of video-audio signal receiving-member with received signal, and with demodulating equipment or separate multiplex's device and separate back former video-audio signal;
4. the audio-visual display unit of using in each group respectively increases by one group of guidance command transmit block, so that corresponding guidance command receiving-member is sent guidance command; And
Only with one group of guidance command receiving-member with decoding process or increase guidance command receiving-member more than one group, receiving the operation control command signal that corresponding guidance command transmit block sends over, and this selecteed video and audio output device is sent corresponding operation control command according to its order.
Wherein when the audio-visual display unit more than a group will be used same group video and audio output device simultaneously, then the guidance command transmit block increases by a guidance command lock function, enables as lock function and then can suspend the straighforward operation order of other guidance command transmit block to this video and audio output device.
Wherein when wanting shared video and audio output device to have only one group, then the AV device alternative pack can be omitted.
Wherein the guidance command transmit block comprises: one switches the video and audio output device function that selection will be used, when requiring to switch selection, the guidance command transmit block sends one and switches select command to the guidance command receiving-member, and the guidance command receiving-member is then done according to its order request AV device alternative pack and switched the action of selecting.
Wherein when the video-audio signal form of acceptable video-audio signal form of audio-visual display unit that uses and the output of selecteed video and audio output device is incompatible, increase by a video-audio signal converting member, so that video-audio signal that will this selecteed video and audio output device output converts to and the acceptable video-audio signal form of the audio-visual display unit of this use.
Wherein the output signal when selecteed video and audio output device is Video Graphics Array VGA (VideoGraphics Array, hereinafter to be referred as VGA) during signal, then the video-audio signal converting member comprises that a VGA signal transfers the conversion equipment of TV signal to, so that be TV signal with the VGA conversion of signals.
Wherein when the audio-visual display unit of using during as the VGA computer screen, then the video-audio signal converting member comprises: a TV signal transfers the conversion equipment of VGA signal to, so that TV signal is converted to the VGA signal.
System of the present invention can comprise further: when the video-audio signal that will transmit is the TV signal of standard, please refer to Fig. 2, video-audio signal transmit block 103 comprises a TV signal modulating device 207, and this video-audio signal is modulated to some selected untapped radiovision channel; One wireless launcher is sent to video-audio signal receiving-member 104 with this signal by wireless mode, and the TV channel selecting device 208 that 104 need of this video-audio signal receiving-member this moment are general standards gets final product; Maybe this video-audio signal is modulated to some selected untapped cable television channels, this signal is mixed among the cable of cable TV in this scope place with signal mixer unit 206, this signal is sent to video-audio signal receiving-member 104 by wired mode, and this moment, this video-audio signal receiving-member only need be that the TV channel selecting device 208 of general standard gets final product; Simultaneously, if when above-mentioned modulation signal disturbs other cable TVs viewer by cable of cable TV, can on the TV signal separator 203 that is positioned on this user's the output, install an one way signal spacer assembly 204, the channel that this spacer assembly can the above-mentioned modulation signal of unidirectional removing carries produces other viewers 202 to avoid above-mentioned modulation signal to be back to this separator 203 and to disturb; Simultaneously, if when there is no untapped cable television channels among the cable of cable TV in this scope place, can on the CATV signal splitter 203 that is positioned on this user's the output, install another one way signal spacer assembly 204, in order to remove this some chosen cable television channels in the cable TV signal that this separator 203 is outputed to this user, so that transmit usefulness for the above-mentioned modulation signal of native system.
The guidance command transmit block of system of the present invention comprises: the habitual distant control function button of general video and audio output device, and the operating means that meets computer mouse and computor-keyboard is arranged, also can use when being computer with the selecteed audio-visual output equipment of box lunch.
Wherein when the remote controller of selecteed video and audio output device is the infra-red remote control mode, then the guidance command receiving-member comprises: an infrared remote controller signal imitation emitter, when receiving the order that the guidance command transmit block sends, but the acceptable infra-red remote control command signal of this video and audio output device of analog transmissions is so that assign control command to this video and audio output device.
Wherein in the time can using this video and audio output device normal running before the original remote controlled sending device of selecteed video and audio output device each different audio-visual display unit in this scope place, then guidance command transmit block and guidance command receiving-member can use former remote control and be omitted.
Wherein when selecteed audio-visual output equipment is computer, the guidance command receiving-member comprises: a computer system communication device, this device is by the output/input interface of computer, as periphery component interconnection PCI (Peripheral Component Interconnect, hereinafter to be referred as PCI), RS232 specification (Recommended Standard 232, hereinafter to be referred as RS232), printer port LPT (LinePrinting Terminal, hereinafter to be referred as LPT), general-purpose serial bus USB (Universal Serial Bus, hereinafter to be referred as USB), ps two PS2 (Personal System/2, hereinafter to be referred as PS2) etc., with dataphone, so that this computer is assigned operational order.
Please refer to Fig. 2, a kind of system according to the invention comprises AV device alternative pack 102, want shared video and audio output device 215 in order to connect, the video and audio output device 215 that 214 (this example is DVD and PC) and switching selection wherein will be used, 214 (this example is for selecting DVD or PC), and this video-audio signal delivered to video-audio signal transmit block 103; Video-audio signal transmit block 103 comprises that a TV signal modulator 207 is modulated to certain untapped cable television channels (for example CH14) with this video-audio signal, and other has a signal mixer 206 that this channel signals is mixed in original cable of cable TV; Video-audio signal receiving-member 104 comprises a remote controller 208, recalls to original shape video-audio signal (for example channel selection is in CH14) in order to above-mentioned modulation signal is separated, and shows by television set 209; Therefore only need the channel (for example CH14) of television set channel selection in above-mentioned use can be seen the video-audio signal of this selecteed video and audio output device output in this example.
If when above-mentioned modulation signal disturbs other cable TVs viewer 202 by cable of cable TV, then on the CATV signal splitter 203 that is positioned on this user's the output, install an one way signal spacer assembly 204, to avoid that other viewers are produced interference.
Guidance command transmit block 106 comprises a Digiplex 210, in the time will assigning operation control command to this selecteed video and audio output device, can operate button on this Digiplex 210 this moment, with wireless mode to guidance command receiving-member transfer operation order; Guidance command receiving-member 107 comprises a wireless receiver 211, to receive the operation control command that guidance command transmit block 107 is sent, when the order that receives is selected video and audio output device for switching, then AV device alternative pack 102 is assigned the switching select command; As be other operation control commands, then when this selecteed video and audio output device is used infrared remote controller (for example DVD), other has the corresponding infra-red remote control order of 213 pairs of these video and audio output device of an infrared ray simulating emitter, 215 emissions, if when this selecteed video and audio output device is a computer 214, one computer system communication device 212 (for example USB interface) is then arranged in addition, this computer 214 is assigned corresponding order; Therefore can before television set, operate the selecteed video and audio output device of far-end in this example.
Technology contents of the present invention and technical characterstic disclose as above, yet those skilled in the art still may be based on enlightenment of the present invention and announcements and done all replacement and modifications that does not deviate from spirit of the present invention; Therefore, protection scope of the present invention should be not limited to the content that embodiment discloses, and should comprise various do not deviate from replacement of the present invention and modifications, and is contained by following claim.
Claims (22)
- One kind can shared video and audio output device system, it is characterized in that, comprising:One AV device alternative pack is in order to connect to want shared video and audio output device and to switch the analog or digital video-audio signal source of selecting the video and audio output device that wherein will use;One video-audio signal transmit block, in order to selected this video-audio signal of AV device alternative pack with the signal format of former numeral or simulation or be converted to the signal format of other numerals or simulation, by wired or wireless load mode, send to the video-audio signal receiving-member;A plurality of video-audio signal receiving-members, in order to receive the signal that the video-audio signal transmit block sends over respectively, and with its reduction or convert the acceptable video-audio signal form of a plurality of audio-visual display unit that is connected on described a plurality of video-audio signal receiving-member to, and be sent to respectively on described a plurality of audio-visual display unit;One guidance command transmit block, in order to will be to the operation control command of this selecteed video and audio output device signal format with numeral or simulation, send to the guidance command receiving-member by wired or wireless load mode, to replace original remote controller of this video and audio output device or operating means; AndOne guidance command receiving-member in order to the operation control command signal that receives and decipher guidance command transmit block sends over, and is complied with its order this selecteed video and audio output device is sent corresponding operation control command.
- 2. the system as claimed in claim 1 is characterized in that, when the audio-visual display unit more than a group will be used video and audio output device different more than a group simultaneously, native system can further comprise:Increase by one group of above AV device alternative pack to switch the video and audio output device of selecting more than a group;Increase by one group of above video-audio signal transmit block with this selecteed video-audio signal more than one group is modulated to different frequency bands with modulating device with this each video-audio signal or with signal multiplex (MUX) device with this each video-audio signal in multiplex's mode, be carried in same transfer path simultaneously;Audio-visual display unit of using in each group respectively increases by one group of video-audio signal receiving-member with received signal, and with demodulating equipment or separate multiplex's device and separate back former video-audio signal;The audio-visual display unit of using in each group respectively increases by one group of guidance command transmit block, so that corresponding guidance command receiving-member is sent guidance command; AndOnly with one group of guidance command receiving-member with decoding process or increase guidance command receiving-member more than one group, receiving the operation control command signal that corresponding guidance command transmit block sends over, and this selecteed video and audio output device is sent corresponding operation control command according to its order.
- 3. the system as claimed in claim 1, it is characterized in that, when the audio-visual display unit more than a group will be used same group video and audio output device simultaneously, then the guidance command transmit block increases by a guidance command lock function, enables as lock function and then can suspend the straighforward operation order of other guidance command transmit block to this video and audio output device.
- 4. as claim 1 or 3 described systems, it is characterized in that when wanting shared video and audio output device to have only one group, then the AV device alternative pack can be omitted.
- 5. as claim 1,2 or 3 described systems, it is characterized in that, the guidance command transmit block also comprises the function of the video and audio output device that a switching selection will be used, when requiring to switch selection, the guidance command transmit block sends one and switches select command to the guidance command receiving-member, and the guidance command receiving-member is then done according to its order request AV device alternative pack and switched the action of selecting.
- 6. as claim 1,2 or 3 described systems, it is characterized in that, when the video-audio signal form of acceptable video-audio signal form of audio-visual display unit that uses and the output of selecteed video and audio output device is incompatible, increase by a video-audio signal converting member, so that video-audio signal that will this selecteed video and audio output device output is converted into the acceptable video-audio signal form of this audio-visual display unit.
- 7. system as claimed in claim 6 is characterized in that, when the output signal of selecteed video and audio output device was Video Graphics Array VGA signal, then the video-audio signal converting member also comprised:One Video Graphics Array VGA signal transfers the conversion equipment of TV signal to, so that be TV signal with Video Graphics Array VGA conversion of signals.
- 8. system as claimed in claim 6 is characterized in that, when the audio-visual display unit of using during as Video Graphics Array VGA computer screen, then the video-audio signal converting member also comprises:One TV signal transfers the conversion equipment of Video Graphics Array VGA signal to, so that TV signal is converted to Video Graphics Array VGA signal.
- 9. the system as claimed in claim 1 is characterized in that, when the video-audio signal that will transmit was the TV signal of standard, then the video-audio signal transmit block also comprised:One TV signal modulating device is modulated to some selected untapped radiovision channel with this video-audio signal;One wireless launcher is sent to the video-audio signal receiving-member with this signal by wireless mode.
- 10. the system as claimed in claim 1 is characterized in that, when the video-audio signal that will transmit was the TV signal of standard, then the video-audio signal transmit block also comprised:One TV signal modulating device is modulated to some selected untapped cable television channels with this video-audio signal;One signal mixer unit is mixed in this signal among the cable of cable TV in this scope place, and this signal is sent to the video-audio signal receiving-member by wired mode.
- 11., it is characterized in that this video-audio signal receiving-member can be the TV channel selecting device of general standard as claim 9 or 10 described systems.
- 12. system as claimed in claim 10, it is characterized in that, when modulation signal disturbs other cable TVs viewer by cable of cable TV, can on the CATV signal splitter that is positioned on this user's the output, install an one way signal spacer assembly.
- 13. system as claimed in claim 12 is characterized in that, the channel of the function of this one way signal spacer assembly for can unidirectional removing modulation signal carrying.
- 14. system as claimed in claim 10, it is characterized in that, when there is no untapped cable television channels in the cable of cable TV in this scope place, can on the CATV signal splitter that is positioned on this user output, install another one way signal spacer assembly.
- 15. system as claimed in claim 14, it is characterized in that, the function of this one way signal spacer assembly is used so that supply the native system modulation signal to transmit in order to remove this some chosen cable television channels in the cable TV signal that this separator is outputed to this user.
- 16., it is characterized in that the guidance command transmit block is the habitual remote controller of general video and audio output device as claim 1,2 or 3 described systems.
- 17., it is characterized in that the guidance command transmit block is a computer inputs as claim 1,2 or 3 described systems.
- 18. system as claimed in claim 17 is characterized in that, described computer inputs is wired or wireless mouse, keyboard, rocking bar, touch-screen or acoustic control formula sensing input device.
- 19., it is characterized in that described audio-visual output equipment is computer, card box video tape recorder, digital audio-video CD-ROM device, laser disc player, monitors video equipment or audio-visual household electrical appliances as claim 1,2 or 3 described systems.
- 20. system as claimed in claim 16 is characterized in that, when this remote controller was the infra-red remote control mode, then the guidance command receiving-member also comprised:One infrared remote controller signal imitation emitter, when receiving the order that the guidance command transmit block sends, but the acceptable infra-red remote control command signal of this video and audio output device of analog transmissions is assigned control command to this video and audio output device.
- 21. system as claimed in claim 16, it is characterized in that, in the time can using this video and audio output device normal running before remote controller dispensing device each different audio-visual display unit in this scope place, then guidance command transmit block and guidance command receiving-member can use former remote control and be omitted.
- 22., it is characterized in that when selecteed audio-visual output equipment was computer, the guidance command receiving-member also comprised as claim 1,2 or 3 described systems:One computer system communication device, the output/input interface of this device by computer as periphery component interconnection PCI, RS232 specification, printer port LPT, general-purpose serial bus USB or ps two PS/2, with dataphone, and assigned operational order to this computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031787835A CN100423576C (en) | 2003-07-22 | 2003-07-22 | A video audio output device shared system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031787835A CN100423576C (en) | 2003-07-22 | 2003-07-22 | A video audio output device shared system |
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| CN1571510A CN1571510A (en) | 2005-01-26 |
| CN100423576C true CN100423576C (en) | 2008-10-01 |
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| CNB031787835A Expired - Fee Related CN100423576C (en) | 2003-07-22 | 2003-07-22 | A video audio output device shared system |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100728019B1 (en) * | 2005-12-12 | 2007-06-13 | 삼성전자주식회사 | Method for wireless transmitting audio signals and appararus thereof |
| JP4811017B2 (en) * | 2005-12-27 | 2011-11-09 | パナソニック株式会社 | VIDEO / AUDIO SYSTEM, CONTROL DEVICE, OUTPUT DEVICE, AND PROGRAM |
| CN201094160Y (en) * | 2007-10-11 | 2008-07-30 | 周美香 | Multifunctional image and sound switching system |
| CN101547027A (en) * | 2008-03-27 | 2009-09-30 | 昭通科技股份有限公司 | Video and audio radio broadcasting device |
| CN102883197A (en) * | 2012-09-28 | 2013-01-16 | 卢泳 | Multi-channel modular television |
| CN103974105A (en) * | 2013-01-25 | 2014-08-06 | 海尔集团公司 | Television control method and system |
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| US5329371A (en) * | 1991-12-13 | 1994-07-12 | Sony Corporation | Loudspeaker system automatically switched between video and audio units |
| JPH08101695A (en) * | 1994-09-30 | 1996-04-16 | Sanyo Electric Co Ltd | Audio output device |
| CN1294816A (en) * | 1997-09-18 | 2001-05-09 | 汤姆森消费电子有限公司 | Digital television appts. for controlling peripheral device via digital bus |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5329371A (en) * | 1991-12-13 | 1994-07-12 | Sony Corporation | Loudspeaker system automatically switched between video and audio units |
| JPH08101695A (en) * | 1994-09-30 | 1996-04-16 | Sanyo Electric Co Ltd | Audio output device |
| CN1294816A (en) * | 1997-09-18 | 2001-05-09 | 汤姆森消费电子有限公司 | Digital television appts. for controlling peripheral device via digital bus |
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