CN202019408U - High-definition multimedia interface (HDMI) connecting cable - Google Patents
High-definition multimedia interface (HDMI) connecting cable Download PDFInfo
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- CN202019408U CN202019408U CN2011200389736U CN201120038973U CN202019408U CN 202019408 U CN202019408 U CN 202019408U CN 2011200389736 U CN2011200389736 U CN 2011200389736U CN 201120038973 U CN201120038973 U CN 201120038973U CN 202019408 U CN202019408 U CN 202019408U
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Abstract
The utility model relates to the field of connecting cables and discloses a high-definition multimedia interface (HDMI) connecting cable. The connecting cable comprises a transmitting end and a receiving end, wherein the transmitting end comprises a laser and a transmitting end controller; the receiving end comprises an optical detection diode, a receiving end controller and an equipment end; the laser is connected with the optical detection diode through four optical fibers; the transmitting end controller is connected with the receiving end controller through a cable; and the receiving end controller and the optical detection diode are connected with the equipment end respectively. By the HDMI connecting cable, hot plug can be realized, and the HDMI connecting cable is the same as a common copper cable HDMI and is convenient to use. Meanwhile, due to the adoption of the four optical fibers and conversion modules at the optical fiber transmitting end and receiving end, the weight of the connecting cable is lighter than that of the common copper cable HDMI, and the problem of low signal quality caused by signal attenuation in the process of transmitting a high-speed signal through the common copper cable is solved simultaneously.
Description
Technical field
The utility model relates to the connection cable field, particularly uses a kind of HDMI connection cable of optical transmission.
Background technology
HDMI, HDMI (High Definition Multimedia Interface) (English: be that a kind of full digitisation image and sound transmit interface High Definition Multimedia Interface), can transmit audio signal and the vision signal of not having compression.HDMI can be used for set-top box, DVD player, PC, holder for TV playing, comprehensive enlarger, numerical digit sound equipment and television set.HDMI can transmit audio frequency and video-audio signal simultaneously, because the Voice ﹠ Video signal adopts same cable, has simplified the installation of system greatly.
But need very high transmission rate owing to realize the high definition transmission, and every channel transfer rate is up to 1.6Gbps, copper cable is because the problem of decay and signal quality, transmission range is difficult to above ten meters, in fact generally about five meters and signal quality be subject to disturb, can not satisfy the high quality transmission requirement.Therefore use optical fiber can realize high-quality long-distance transmissions, solve the problem that copper cable can not long-distance transmissions as the HDMI extended line.
At present, prolongation equipment of the HDMI optical fiber on the market or optical fiber extended line roughly have three kinds: conversion hair style, boxlike optical fiber extender and line formula extended line.Change the too expensive of hair style, boxlike optical fiber extender is too expensive and installation is inconvenient can not realize the function that plug and pull goes out, so and line formula extended line uses inconvenience because add repeater.HDMI optical fiber therefore of the prior art prolongs equipment or all there is the too high and awkward technical problem of price in the optical fiber extended line.
The utility model content
All there is the too high and awkward technical problem of price at the HDMI optical fiber prolongation equipment or the optical fiber extended line that exist in the prior art, therefore is necessary to provide a kind of HDMI to connect cable.
The utility model provides a kind of HDMI to connect cable, it comprises transmitting terminal and receiving terminal, above-mentioned transmitting terminal received signal input also is transferred to receiving terminal, and above-mentioned transmitting terminal comprises laser and transmitting terminal controller, and above-mentioned receiving terminal comprises inspection optical diode, receiving terminal controller and equipment end; Above-mentioned laser is connected by four optical fiber with the inspection optical diode, and above-mentioned transmitting terminal controller is connected by cable with the receiving terminal controller; Above-mentioned receiving terminal controller, inspection optical diode are connected with equipment end respectively.
Preferably, above-mentioned laser further comprises the driver of laser, and the driver of above-mentioned laser and laser change into light signal with the signal of the HW High Way of the HDMI of input, and gives receiving terminal by Optical Fiber Transmission.
Preferably, above-mentioned inspection optical diode further comprises the amplifier of examining optical diode, the amplifier of above-mentioned inspection optical diode and inspection optical diode converts the light signal of the optical fiber that receives to corresponding high-speed electrical signals, and this high-speed electrical signals is passed to the high definition device that is connected with receiving terminal by the connection-peg of cable.
Preferably, above-mentioned cable is two, multiplexing as power line and holding wire, and another uses as ground wire.
The beneficial effects of the utility model are: contrast HDMI optical fiber extended line of the prior art, the HDMI connection cable that the utility model provides can be realized hot plug, and is the same with common copper cable HDMI, the convenient use.Simultaneously because use 4 optical fiber to add the modular converter of optical fiber transmitting terminal and receiving terminal, the common copper cable HDMI of its weight ratio is light.Overcome the signal quality problem that common copper cable brings owing to decay simultaneously when transmit high-speed signals.
Description of drawings
Fig. 1 is a HDMI connecting line toe-in composition of the present utility model.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer,, and, the utility model is further described with reference to accompanying drawing below in conjunction with specific embodiment.
The utility model discloses a kind of HDMI and connect cable, it comprises transmitting terminal and receiving terminal, above-mentioned transmitting terminal received signal input also is transferred to receiving terminal, and above-mentioned transmitting terminal comprises laser and transmitting terminal controller, and above-mentioned receiving terminal comprises inspection optical diode, receiving terminal controller and equipment end; Above-mentioned laser is connected by four optical fiber with the inspection optical diode, and above-mentioned transmitting terminal controller is connected by cable with the receiving terminal controller; Above-mentioned receiving terminal controller, inspection optical diode are connected with equipment end respectively.
Preferably, above-mentioned laser further comprises the driver of laser, and the driver of above-mentioned laser and laser change into light signal with the signal of the HW High Way of the HDMI of input, and gives receiving terminal by Optical Fiber Transmission.
Preferably, above-mentioned inspection optical diode further comprises the amplifier of examining optical diode, the amplifier of above-mentioned inspection optical diode and inspection optical diode converts the light signal of the optical fiber that receives to corresponding high-speed electrical signals, and this high-speed electrical signals is passed to the high definition device that is connected with receiving terminal by the connection-peg of cable.
Preferably, above-mentioned cable is two, multiplexing as power line and holding wire, and another uses as ground wire.
HDMI connecting line toe-in composition of the present utility model as shown in Figure 1, above-mentioned HDMI connects cable and comprises transmitting terminal and receiving terminal, and above-mentioned transmitting terminal received signal input also is transferred to receiving terminal, above-mentioned transmitting terminal mainly contains two parts and forms, wherein a part is HW High Way (1-0,1-1, the 1-2 HDMI, signal 1-3), driver (1-11) and laser (1-12) by laser change into light signal, at last by four optical fiber (3-1,3-2,3-3 3-4) launches.Another part is to handle HDMI low speed signal line scl (1-6), sda (1-7), hotplug (1-8), cec (1-9), reserved (1-10), power (1-4), ground (1-5) is mainly handled by transmitting terminal controller (1-13), the reading information spinner and will come from transmitting terminal controller (1-13) of the low speed signal of source end, (3-5 3-6) carries out the signal transmission with receiving terminal controller (2-13) to transmitting terminal controller (1-13) by cable.These two cables wherein, one is multiplexing as power line and holding wire, promptly the power supply carrier wave comes (3-5) of usefulness, and another comes usefulness (3-6) as ground wire.
Receiving terminal is made up of two parts.One is the high speed signal part, and the amplifier (2-12) by inspection optical diode (2-11) and inspection optical diode comes that (3-1,3-2,3-3, light signal 3-4) convert the high-speed electrical signals of correspondence to four optical fiber.And the connection-peg of this high speed signal by cable (2-2 2-3) passes to the high definition device that receiving terminal connects for 2-0,2-1.Another part is to handle low speed signal, mainly handle by controller (2-13), MCU(2-13) mainly be low speed signal line scl (2-6) with the transmitting terminal of HDMI, sda (2-7), hotplug (2-8), cec (2-9), reserved (2-10), power2-4), ground (2-5) carries out signal transmission and exchanges, and and the MCU(1-13 of transmitting terminal) carry out the signal transmission.
Receiving terminal also comprises equipment end, above-mentioned receiving terminal controller (2-13) is connected with equipment end, receiving terminal controller (2-13) is by the hot plug information of hotplug (2-8) fetch equipment end, if after obtaining hot plug information, receiving terminal controller (2-13) is by scl (2-6), and sda (2-7) reads HDMI equipment end EDID facility information.Read finish after, encode with Manchester's code, use the power line carrier technology then, information is sent to transmitting terminal by cable (3-5).After transmitting terminal is received information, after the decoding, it is stored according to the EDID standard mode, use hot plug line (1-8) the notice main frame of transmitting terminal can sense data simultaneously,, thereby finish whole Handshake Protocol when the main frame reading of data.Will start whole communication, send the signal of high definition to receiving end.
More than above-mentioned specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; more than above-mentioned only be specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (4)
1. a HDMI connects cable, it is characterized in that comprising transmitting terminal and receiving terminal, and described transmitting terminal comprises laser and transmitting terminal controller, and described receiving terminal comprises inspection optical diode, receiving terminal controller and equipment end; Described laser is connected by four optical fiber with the inspection optical diode, and described transmitting terminal controller is connected by cable with the receiving terminal controller; Described receiving terminal controller, inspection optical diode are connected with equipment end respectively.
2. connection cable as claimed in claim 1 is characterized in that described laser comprises the driver of laser.
3. connection cable as claimed in claim 2 is characterized in that described inspection optical diode comprises the amplifier of examining optical diode.
4. connection cable as claimed in claim 2 is characterized in that described cable is two, multiplexing as power line and holding wire, and another uses as ground wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200389736U CN202019408U (en) | 2011-02-15 | 2011-02-15 | High-definition multimedia interface (HDMI) connecting cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200389736U CN202019408U (en) | 2011-02-15 | 2011-02-15 | High-definition multimedia interface (HDMI) connecting cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202019408U true CN202019408U (en) | 2011-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200389736U Expired - Fee Related CN202019408U (en) | 2011-02-15 | 2011-02-15 | High-definition multimedia interface (HDMI) connecting cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN202019408U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184521A (en) * | 2014-09-09 | 2014-12-03 | 昆山思雷电子科技有限公司 | Minitype separating type HDMI optical fiber transmission device |
| CN104301698A (en) * | 2014-10-23 | 2015-01-21 | 深圳市易飞扬通信技术有限公司 | Optical cable interface system for transmitting HDMI signals |
| CN106131516A (en) * | 2016-03-08 | 2016-11-16 | 武汉博昇光电股份有限公司 | A kind of based on being wirelessly transferred pure smooth HDMI optical cable |
| CN108701073A (en) * | 2017-08-21 | 2018-10-23 | 庄铁铮 | Electronic device, system and method convenient to debug |
| CN109196872A (en) * | 2016-06-01 | 2019-01-11 | 松下知识产权经营株式会社 | Sending device, reception device, cable, sending method and method of reseptance |
| CN109587427A (en) * | 2018-12-12 | 2019-04-05 | 深圳市易飞扬通信技术有限公司 | High-definition multimedia interface active optical cable circuit |
-
2011
- 2011-02-15 CN CN2011200389736U patent/CN202019408U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184521A (en) * | 2014-09-09 | 2014-12-03 | 昆山思雷电子科技有限公司 | Minitype separating type HDMI optical fiber transmission device |
| CN104301698A (en) * | 2014-10-23 | 2015-01-21 | 深圳市易飞扬通信技术有限公司 | Optical cable interface system for transmitting HDMI signals |
| CN106131516A (en) * | 2016-03-08 | 2016-11-16 | 武汉博昇光电股份有限公司 | A kind of based on being wirelessly transferred pure smooth HDMI optical cable |
| CN109196872A (en) * | 2016-06-01 | 2019-01-11 | 松下知识产权经营株式会社 | Sending device, reception device, cable, sending method and method of reseptance |
| CN108701073A (en) * | 2017-08-21 | 2018-10-23 | 庄铁铮 | Electronic device, system and method convenient to debug |
| US11531055B2 (en) | 2017-08-21 | 2022-12-20 | Tit Tsang CHONG | Facilitating debugging electronic device, system and method thereof |
| CN109587427A (en) * | 2018-12-12 | 2019-04-05 | 深圳市易飞扬通信技术有限公司 | High-definition multimedia interface active optical cable circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111026 Termination date: 20180215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |