CN108234969A - A kind of device and implementation method for extending DVI signal transmission distances - Google Patents
A kind of device and implementation method for extending DVI signal transmission distances Download PDFInfo
- Publication number
- CN108234969A CN108234969A CN201711276170.2A CN201711276170A CN108234969A CN 108234969 A CN108234969 A CN 108234969A CN 201711276170 A CN201711276170 A CN 201711276170A CN 108234969 A CN108234969 A CN 108234969A
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- Prior art keywords
- dvi
- signal
- controller
- optical
- optical module
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2589—Bidirectional transmission
- H04B10/25891—Transmission components
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Optical Communication System (AREA)
Abstract
The present invention relates to DVI technical field of data transmission, more particularly to a kind of device and implementation method for extending DVI signal transmission distances.Its device includes transmitter and receiver, and the transmitter is connected with receiver by transmission cable, and transmitter includes encoder, controller and optical module, standard DVI signals are converted into parallel signal by the encoder, are used for controller, and the controller is responsible for data acquisition and conversion；Optical module is responsible for the conversion of electric signal and optical signal；The receiver includes decoder, controller and optical module, and the decoder converts parallel data into standard DVI signals.The device and implementation method of a kind of extension DVI signal transmission distances of the present invention, can extend DVI signal transmission distances.
Description
Technical field
The present invention relates to DVI technical field of data transmission, more particularly to a kind of device for extending DVI signal transmission distances and
Implementation method.
Background technology
DVI（Digital Visual Interface）It is a kind of digital computer interface.DVI transmission is digital letter
It number is compared with past VGA signals, DVI signals have the advantages of very big, such as：Transmission speed is fast, eliminate hangover, signal is without declining
Subtract, picture it is clear etc..DVI signal transmissions are more and more widely applied in military commander system at present.
DVI interface is based on the PanalLink interfacings of Silicon Image companies, based on TMDS
(Transition Minimized Differential Signaling minimize differential signal transmission) electronic protocol conduct
Basic electrical connection.TMDS is a kind of differential signal mechanism, can encode pixel data, and passes through serial connection and transmit.It is aobvious
The digital signal that card generates is sent to receiver according to after TMDS protocol codes by transmitter by TMDS channels, is sent by decoding
To numerical display device.
But under the conditions of current technology, DVI also there are one it is very big the shortcomings that, be exactly that transmission range is short.Common feelings
Under condition, general DVI cables can only 5 meters or so of effectively transmitted signal, the attenuation that will generate signal more than 5 meters.This shortcoming
Significantly limit universal and application of the DVI equipment in military commander system.
Invention content
In order to solve problem of the prior art, the present invention provides a kind of devices and reality for extending DVI signal transmission distances
Existing method, can extend DVI signal transmission distances.
The technical solution adopted in the present invention is as follows：
A kind of device for extending DVI signal transmission distances, including transmitter and receiver, the transmitter and receiver pass through
Transmission cable connects, and transmitter includes encoder, controller and optical module, and standard DVI signals are converted by the encoder
Parallel signal is used for controller, and the controller is responsible for data acquisition and conversion；Optical module is responsible for electric signal and optical signal
Conversion；The receiver includes decoder, controller and optical module, and the decoder converts parallel data into standard
DVI signals.
Transmission cable uses LC multi-modes or ST optical cables.
DVI signals are provided by independent display card, and DVI data, clock signal are decoded as parallel digital signal using decoder,
Controller handles parallel digital signal, then by treated, two-path video signal is transformed to optical signal by optical module,
Distal end is transmitted to by transmission cable；After the DDC signals of DVI are handled by controller, optical signal is transformed to by optical module
Distal end is transmitted to by transmission cable.
A kind of implementation method for extending DVI signal transmission distances, includes the following steps：
A, independent display card provides DVI signals and DVI data, clock signal is decoded as parallel digital signal using decoder；
B, controller handles the parallel digital signal；
C, by optical module, by treated, two-path video signal is transformed to optical signal, and distal end is transmitted to by transmission cable；Together
When, after the DDC signals of DVI are handled by controller, optical signal is transformed to by optical module, is transmitted to far by transmission cable
End.
The advantageous effect that technical solution provided by the invention is brought is：
The device and implementation method of a kind of extension DVI signal transmission distances of the present invention, the long range that can meet DVI signals pass
It is defeated, it is farthest up to 500 meters.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is a kind of hardware schematic of the device of extension DVI signal transmission distances of the present invention；
Fig. 2 is that a kind of DVI for the implementation method for extending DVI signal transmission distances changes hardware circuit diagram with optical fiber dress.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment one
As shown in attached drawing 1,2, a kind of device for extending DVI signal transmission distances, including transmitter and receiver, the transmitting
Device is connected with receiver by transmission cable, and transmitter includes encoder, controller and optical module, and the encoder is by standard
DVI signals are converted into parallel signal, are used for controller, and the controller is responsible for data acquisition and conversion；Optical module is responsible for
The conversion of electric signal and optical signal；The receiver includes decoder, controller and optical module, and the decoder will be parallel
Data are converted to standard DVI signals.
Transmission cable uses LC multi-modes or ST optical cables.
Embodiment two
As shown in Figure 2, a kind of implementation method for extending DVI signal transmission distances, includes the following steps：
A, independent display card provides DVI signals and DVI data, clock signal is decoded as parallel digital signal using decoder；
B, controller handles the parallel digital signal；
C, by optical module, by treated, two-path video signal is transformed to optical signal, and distal end is transmitted to by transmission cable；Together
When, after the DDC signals of DVI are handled by controller, optical signal is transformed to by optical module, is transmitted to far by transmission cable
End.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of device for extending DVI signal transmission distances, including transmitter and receiver, the transmitter and receiver lead to
Cross transmission cable connection, which is characterized in that the transmitter includes encoder, controller and optical module, the encoder
Standard DVI signals are converted into parallel signal, are used for controller, the controller is responsible for data acquisition and conversion；Optical mode
Block is responsible for the conversion of electric signal and optical signal；The receiver includes decoder, controller and optical module, the decoder
Convert parallel data into standard DVI signals.
A kind of 2. device for extending DVI signal transmission distances according to claim 1, which is characterized in that the transmission
Cable uses LC multi-modes or ST optical cables.
A kind of 3. device for extending DVI signal transmission distances according to claim 1, which is characterized in that the DVI
Signal is provided by independent display card, DVI data, clock signal is decoded as parallel digital signal using decoder, controller pair is simultaneously
Row digital signal is handled, then by treated, two-path video signal is transformed to optical signal by optical module, by transmitting light
Cable is transmitted to distal end；After the DDC signals of DVI are handled by controller, optical signal is transformed to by transmitting light by optical module
Cable is transmitted to distal end.
4. a kind of implementation method for extending DVI signal transmission distances, includes the following steps：
A, independent display card provides DVI signals and DVI data, clock signal is decoded as parallel digital signal using decoder；
B, controller handles the parallel digital signal；
C, by optical module, by treated, two-path video signal is transformed to optical signal, and distal end is transmitted to by transmission cable；Together
When, after the DDC signals of DVI are handled by controller, optical signal is transformed to by optical module, is transmitted to far by transmission cable
End.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711276170.2A CN108234969A (en) | 2017-12-06 | 2017-12-06 | A kind of device and implementation method for extending DVI signal transmission distances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711276170.2A CN108234969A (en) | 2017-12-06 | 2017-12-06 | A kind of device and implementation method for extending DVI signal transmission distances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108234969A true CN108234969A (en) | 2018-06-29 |
Family
ID=62653328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711276170.2A Pending CN108234969A (en) | 2017-12-06 | 2017-12-06 | A kind of device and implementation method for extending DVI signal transmission distances |
Country Status (1)
| Country | Link |
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| CN (1) | CN108234969A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111343479A (en) * | 2020-03-04 | 2020-06-26 | 深圳市朗强科技有限公司 | Method and equipment for sending and receiving audio and video data in long-distance transmission scene |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86208207U (en) * | 1986-10-24 | 1988-11-16 | 浙江工学院 | Fiber0optic data transmission device for multiplex switching contact signals |
| CN103916618A (en) * | 2013-11-28 | 2014-07-09 | 苏州长风航空电子有限公司 | Onboard video high-speed transmission circuit and method based on optical fiber |
| CN105049797A (en) * | 2015-07-09 | 2015-11-11 | 山东超越数控电子有限公司 | Video signal remote transmission realizing method |
| CN103067697B (en) * | 2012-12-13 | 2016-07-06 | 大连科迪视频技术有限公司 | A kind of method eliminating the VGA signal jitter based on fiber-optic transfer |
-
2017
- 2017-12-06 CN CN201711276170.2A patent/CN108234969A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86208207U (en) * | 1986-10-24 | 1988-11-16 | 浙江工学院 | Fiber0optic data transmission device for multiplex switching contact signals |
| CN103067697B (en) * | 2012-12-13 | 2016-07-06 | 大连科迪视频技术有限公司 | A kind of method eliminating the VGA signal jitter based on fiber-optic transfer |
| CN103916618A (en) * | 2013-11-28 | 2014-07-09 | 苏州长风航空电子有限公司 | Onboard video high-speed transmission circuit and method based on optical fiber |
| CN105049797A (en) * | 2015-07-09 | 2015-11-11 | 山东超越数控电子有限公司 | Video signal remote transmission realizing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111343479A (en) * | 2020-03-04 | 2020-06-26 | 深圳市朗强科技有限公司 | Method and equipment for sending and receiving audio and video data in long-distance transmission scene |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180629 |