CN102857725A - Intelligent display system, intelligent display and method for transmitting signals - Google Patents
Intelligent display system, intelligent display and method for transmitting signals Download PDFInfo
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- CN102857725A CN102857725A CN2012103518352A CN201210351835A CN102857725A CN 102857725 A CN102857725 A CN 102857725A CN 2012103518352 A CN2012103518352 A CN 2012103518352A CN 201210351835 A CN201210351835 A CN 201210351835A CN 102857725 A CN102857725 A CN 102857725A
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Abstract
The invention relates to an intelligent display system, an intelligent display and a method for transmitting signals. The intelligent display system comprises a display and an intelligent device which are connected through a digital video interactive (DVI) port. The intelligent device transmits digital video signals to the display through the DVI port, further transmits left sound track voice frequency signals and right sound track voice frequency signals to the display through a first group of two pins in idle pins which are located on the DVI port and are not utilized in transmission of the digital video signals, and is communicated with the display through a second group of two pins in idle pins which are located on the DVI port and are not utilized in transmission of the digital video signals. The system, the display and the method increase a voice frequency transmission channel and a channel for communication between devices by redefining the original DVI port under the condition that the newly added channels are compatible with the original digital video signal transmission channel. Only one DVI connection wire is needed to transmit digital video signals, voice frequency signals and communication signals simultaneously, using cost of display products is reduced, and the display can be more conveniently connected with the intelligent device.
Description
Technical field
The present invention relates to Display Technique, more particularly, relate to the method for a kind of intelligent display system, intelligent display and transmission signal.
Background technology
DVI(Digital Visual Interface), it is digital visual interface, be jointly to form DDWG(Digital Display Working Group by companies such as Silicon Image, Intel, Compaq, IBM, HP, NEC, Fujitsu in 1999, numeral shows working group) interface standard released.At present, the DVI interface has been widely used in and has been connected to transmit digital video signal between display and the video card.The interface definition of DVI interface commonly used is as follows:
| Pin | Definition | Pin | Definition |
| 1 | TMDS data 2- | 13 | TMDS data 3+ |
| 2 | TMDS data 2+ | 14 | + 5V DC power supply |
| 3 | 2/4 shielding of TMDS |
15 | Ground connection |
| 4 | TMDS data 4- | 16 | Hot plug detects |
| 5 | TMDS data 4+ | 17 | TMDS data 0- |
| 6 | The DDC clock | 18 | TMDS data 0+ |
| 7 | The DDC data | 19 | 0/5 shielding of TMDS data |
| 8 | The simulation vertical synchronization | 20 | TMDS data 5- |
| 9 | TMDS data 1- | 21 | TMDS data 5+ |
| 10 | TMDS data 1+ | 22 | The TMDS clock-disabling |
| 11 | 1/3 shielding of TMDS data | 23 | The TMDS |
| 12 | TMDS data 3- | 24 | The TMDS clock- |
| C1 | Analog red | C4 | Dummy level is synchronous |
| C2 | Simulation is green | C5 | Analogue ground |
| C3 | Analog blue |
DVI interface compatibility digital signal channel and analog signal channel, and when transmitting digital video signal, also provide the binary channels connection, but, actual display product is not almost used analog signal channel, the transmission of digital signal also is single-channel mode, thereby this part pin in the DVI interface is left unused.
Along with the development of technology and enriching constantly of user's request, intellectuality has been the trend of display product development.One of intelligentized solution of display is the separate design of the external smart machine of display such as smart box etc., plug and play.The client can match the smart machine of different performance as required, and universal display is upgraded to intelligent display.Between present display and the external smart machine if transmit the words of digital video signal, audio signal and communication signal, need digital video passage, voice-grade channel, three passages of communication channel, connect by three connecting lines, increased product cost, use simultaneously also pretty troublesome.And regular display does not have communication channel, needs customization.
Summary of the invention
The technical problem to be solved in the present invention is, for the defects of prior art, provide a kind of method that transmits simultaneously intelligent display system, intelligent display and the transmission signal of digital video signal, left and right acoustic channels audio signal and communication signal by the DVI interface.
The technical solution adopted for the present invention to solve the technical problems is: propose a kind of intelligent display system, comprise the display and the smart machine that connect by the DVI interface, smart machine transmits digital video signal by the DVI interface to display, smart machine also transmits L channel and right channel audio signal by first group of two pin that transmits on the DVI interface in the idle pin that digital video signal do not use to display, carries out communication by second group of two pin and the display that transmits on the DVI interface in the idle pin that digital video signal do not use.
Among the embodiment, transmit communication signal by described second group of two pin based on IIC or RS232 agreement between described smart machine and the display.
Among the embodiment, described display comprises by digital video pin receiving digital video signal, receive L channel and right channel audio signal by described first group of two pin, receive the DVI connector of communication signal by described second group of two pin, the video decode module of the digital video signal that decoding receives, the L channel that decoding receives and the audio decoder module of right channel audio signal, the communication instruction that communication signal that processing receives transmits also returns the communication module of result by described second group of two pin, the display circuit that shows decoded digital video signal, the loud speaker of the audio signal behind the broadcast decoder, and the controller of controlling each module work.
Among the embodiment, described communication instruction comprises device address field, control command field, control parameter field and checksum field.
Among the embodiment, described first group of two pin comprises C3 and C4 pin, and described second group of two pin comprises C1 and C2 pin.
The present invention also proposes to transmit in a kind of intelligent display system the method for signal for solving its technical problem, wherein, described intelligent display system comprises display and the smart machine that connects by the DVI interface, described method comprises by the DVI interface and transmits the digital video signal that is sent to display by smart machine that described method also comprises:
Transmit L channel and the right channel audio signal that is sent to display by smart machine by first group of two pin that transmits on the DVI interface in the idle pin that digital video signal do not use;
Transmit communication signal between smart machine and the display by transmitting second group of two pin in the idle pin that digital video signal do not use on the DVI interface.
Among the embodiment, described method specifically comprises: transmit communication signal between smart machine and the display by described second group of two pin based on IIC or RS232 agreement.
Among the embodiment, the communication instruction that described communication signal transmits comprises device address field, control command field, control parameter field and checksum field.
Among the embodiment, described first group of two pin comprises C3 and C4 pin, and described second group of two pin comprises C1 and C2 pin.
The present invention also proposes a kind of intelligent display for solving its technical problem, comprise the DVI connector, the video decode module, the controller of display circuit and each module work of control, described intelligent display is shown by display circuit that by DVI connector receiving digital video signal and after the decoding of video decode module described intelligent display also comprises the L channel of first group of two pins reception in the idle pin that does not use by receiving digital video signal on the DVI connector and the audio decoder module that right channel audio signal is decoded, the communication module of result is processed and returned by described second group of two pin to the communication signal that second group of two pin in the idle pin that does not use by receiving digital video signal on the DVI connector are received, loud speaker with audio signal behind the broadcast decoder.
The present invention is by redefining existing DVI interface, in the situation of the original digital video signal Transfer pipe of compatibility, increase audio transmission and equipment room communication channel, only need to use a DVI connecting line simultaneously transmission digital video, audio frequency, three kinds of signals of communication, reduce the use cost of display product, and be beneficial to display and connect more easily smart machine.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the DVI interface definition schematic diagram of one embodiment of the invention;
Fig. 2 is the logic diagram of the intelligent display system of one embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The present invention is by self-defined DIV interface, cancel original standard substantially useless interface definition on present display product, redefine audio transmission channel, communication channel, so that display is compatible when connecting video card, can also directly by the external smart machine of DVI interface, realize that display is intelligent.This self-defining DVI interface has increased voice-grade channel and communication channel, reaches display and is connected the complete connection of smart machine.
Fig. 1 shows the DVI interface definition schematic diagram of one embodiment of the invention.As shown in Figure 1, being compared as follows of DVI interface definition of the present invention and original standard:
Embodiment shown in Figure 1 utilized present display product in the DVI interface use less than pin C1, C2, C3, C4, and specific definition pin C3, C4 transmit respectively R channel and left channel audio signal, and definition pin C1 and C2 transmit communication signal based on IIC or RS232 agreement.The various compound modes of other of these four pins can also realize purpose of the present invention.In addition, among the different embodiment, can also make that other idle pin comes transmit audio signals and communication signal in the DVI interface by oneself, for example pin 8,4,5,12,13,20,21.
Fig. 2 shows the logic diagram of the intelligent display system of one embodiment of the invention.Among the embodiment as shown in Figure 2, intelligent display system 100 comprises display 10 and smart machine 20, and display 10 is by the external smart machine 20 of self-defined DVI interface for example shown in Figure 1, to realize the intellectuality of display 10.This smart machine 20 can be various intelligent objects, intelligent television box, PC box, cloud client etc., transmits digital video signal and L channel and right channel audio signal by self-defined DVI interface shown in Figure 1 to display 10, carries out communication with display 10.
Among the concrete embodiment as shown in Figure 2, smart machine 20 is provided with DVI connector 21, be connected with the DVI connector 11 of display 10 by DVI connecting line 30, transmit digital video signal and L channel and right channel audio signal to display 10, and carry out communication with display 10.Specifically, smart machine 20 sends digital video signal by the digital video passage pin 1-24 of DVI connector 21, pin C3 by DVI connector 21 and C4 send L channel and right channel audio signal, the communication signal that carries out communication between the pin C1 by DVI connector 21 and C2 transmitting-receiving and the display 10.
Display 10 comprises DVI connector 11, controller 12, video decode module 13, audio decoder module 14, communication module 15, display circuit 16 and loud speaker 17.Wherein, DVI connector 11 receives the digital video signal that smart machine 20 transmits by digital video passage pin 1-24, receive L channel and the right channel audio signal that smart machine 20 transmits by pin C3 and C4, by the communication signal that carries out communication between pin C1 and C2 transmitting-receiving and the smart machine 20.The digital video signal that video decode module 13 decoding receives also sends decoded digital video signal to display circuit 16 and shows.L channel and the right channel audio signal that audio decoder module 14 decoding receives also sends decoded audio signal to loud speaker 17 and plays.The communication that communication module 15 is used between realization display 10 and the smart machine 20.For example, the communication between display 10 and the smart machine 20 comprises: the facility information of smart machine 20 reading displayed devices 10, understand the signal format of display 10 supports to export suitable signal; Display 10 reads the device signal of smart machine 20, determines whether to be smart machine 20 supply power supplys; Smart machine 20 can send communication instruction with the customer parameter of adjusting display 10 such as contrast, brightness, volume etc.Specifically, transmit communication signal based on IIC or RS232 agreement between display 10 and the smart machine 20.Communication module 15 is processed the communication instruction of the communication signal transmission that receives through pin C1 and the C2 of DVI connector 11, and returns result to smart machine 20 by pin C1 and the C2 of DVI connector 11.Simultaneously, communication module 15 also can send communication signal to smart machine 20.In the specific embodiment, the form of this communication instruction is: device address field-control command field-control parameter field-checksum field.The work of above-mentioned each module of controller 12 controls.
The present invention is by redefining existing DVI interface, in the situation of the original digital video signal Transfer pipe of compatibility, increase audio transmission and equipment room communication channel, only need to use a DVI connecting line can be between display and smart machine simultaneously transmission digital video, audio frequency, three kinds of signals of communication, reduce the use cost of display product, and be beneficial to display and connect more easily smart machine.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. intelligent display system, comprise the display and the smart machine that connect by the DVI interface, smart machine transmits digital video signal by the DVI interface to display, it is characterized in that, smart machine also transmits L channel and right channel audio signal by first group of two pin that transmits on the DVI interface in the idle pin that digital video signal do not use to display, carries out communication by second group of two pin and the display that transmits on the DVI interface in the idle pin that digital video signal do not use.
2. intelligent display system according to claim 1 is characterized in that, transmits communication signal by described second group of two pin based on IIC or RS232 agreement between described smart machine and the display.
3. intelligent display system according to claim 2, it is characterized in that described display comprises by digital video pin receiving digital video signal, receive L channel and right channel audio signal by described first group of two pin, receive the DVI connector of communication signal by described second group of two pin, the video decode module of the digital video signal that decoding receives, the L channel that decoding receives and the audio decoder module of right channel audio signal, the communication instruction that communication signal that processing receives transmits also returns the communication module of result by described second group of two pin, the display circuit that shows decoded digital video signal, the loud speaker of the audio signal behind the broadcast decoder, and the controller of controlling each module work.
4. intelligent display system according to claim 3 is characterized in that, described communication instruction comprises device address field, control command field, control parameter field and checksum field.
5. intelligent display system according to claim 1 is characterized in that, described first group of two pin comprises C3 and C4 pin, and described second group of two pin comprises C1 and C2 pin.
6. transmit the method for signal in the intelligent display system, wherein, described intelligent display system comprises display and the smart machine that connects by the DVI interface, described method comprises the digital video signal that is sent to display by the transmission of DVI interface by smart machine, it is characterized in that described method also comprises:
Transmit L channel and the right channel audio signal that is sent to display by smart machine by first group of two pin that transmits on the DVI interface in the idle pin that digital video signal do not use;
Transmit communication signal between smart machine and the display by transmitting second group of two pin in the idle pin that digital video signal do not use on the DVI interface.
7. method according to claim 6 is characterized in that, described method specifically comprises: transmit communication signal between smart machine and the display by described second group of two pin based on IIC or RS232 agreement.
8. method according to claim 7 is characterized in that, the communication instruction that described communication signal transmits comprises device address field, control command field, control parameter field and checksum field.
9. method according to claim 6 is characterized in that, described first group of two pin comprises C3 and C4 pin, and described second group of two pin comprises C1 and C2 pin.
10. intelligent display, comprise the DVI connector, the video decode module, the controller of display circuit and each module work of control, described intelligent display is shown by display circuit by DVI connector receiving digital video signal and after the decoding of video decode module, it is characterized in that described intelligent display also comprises the L channel of first group of two pins reception in the idle pin that does not use by receiving digital video signal on the DVI connector and the audio decoder module that right channel audio signal is decoded, the communication module of result is processed and returned by described second group of two pin to the communication signal that second group of two pin in the idle pin that does not use by receiving digital video signal on the DVI connector are received, loud speaker with audio signal behind the broadcast decoder.
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| CN2012103518352A CN102857725A (en) | 2012-09-20 | 2012-09-20 | Intelligent display system, intelligent display and method for transmitting signals |
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| CN2012103518352A CN102857725A (en) | 2012-09-20 | 2012-09-20 | Intelligent display system, intelligent display and method for transmitting signals |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515653A (en) * | 2015-11-27 | 2016-04-20 | 山东超越数控电子有限公司 | Optical terminal state monitoring implementing method |
| CN105847824A (en) * | 2016-05-17 | 2016-08-10 | 中航华东光电有限公司 | Method for eliminating single channel digital video signal decoding interference |
| CN108024141A (en) * | 2017-12-27 | 2018-05-11 | 兴天通讯技术有限公司 | A kind of intelligent display system and its picture signal transmission method |
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| US6624797B1 (en) * | 1999-03-29 | 2003-09-23 | Ati International Srl | Method and apparatus for providing video and control to a monitor |
| CN1552158A (en) * | 2002-06-12 | 2004-12-01 | 松下电器产业株式会社 | Data transmission device and data reception device |
| CN2805272Y (en) * | 2005-07-19 | 2006-08-09 | 深圳创维－Rgb电子有限公司 | DAVI connector which can transmit digital video signals and digital sound signals |
| CN101271386A (en) * | 2008-03-27 | 2008-09-24 | 上海华平信息技术股份有限公司 | Transmission method adopting VGA interface |
| CN101593504A (en) * | 2008-05-30 | 2009-12-02 | 鸿富锦精密工业（深圳）有限公司 | The display of tool Peripheral Interface and support the mainboard of described display |
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- 2012-09-20 CN CN2012103518352A patent/CN102857725A/en active Pending
Patent Citations (5)
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| US6624797B1 (en) * | 1999-03-29 | 2003-09-23 | Ati International Srl | Method and apparatus for providing video and control to a monitor |
| CN1552158A (en) * | 2002-06-12 | 2004-12-01 | 松下电器产业株式会社 | Data transmission device and data reception device |
| CN2805272Y (en) * | 2005-07-19 | 2006-08-09 | 深圳创维－Rgb电子有限公司 | DAVI connector which can transmit digital video signals and digital sound signals |
| CN101271386A (en) * | 2008-03-27 | 2008-09-24 | 上海华平信息技术股份有限公司 | Transmission method adopting VGA interface |
| CN101593504A (en) * | 2008-05-30 | 2009-12-02 | 鸿富锦精密工业（深圳）有限公司 | The display of tool Peripheral Interface and support the mainboard of described display |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515653A (en) * | 2015-11-27 | 2016-04-20 | 山东超越数控电子有限公司 | Optical terminal state monitoring implementing method |
| CN105847824A (en) * | 2016-05-17 | 2016-08-10 | 中航华东光电有限公司 | Method for eliminating single channel digital video signal decoding interference |
| CN105847824B (en) * | 2016-05-17 | 2019-05-21 | 中航华东光电有限公司 | The method for eliminating the interference of single channel decoded digital video signal |
| CN108024141A (en) * | 2017-12-27 | 2018-05-11 | 兴天通讯技术有限公司 | A kind of intelligent display system and its picture signal transmission method |
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Application publication date: 20130102 |