CN101686359B - HDMI distributor - Google Patents
HDMI distributor Download PDFInfo
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- CN101686359B CN101686359B CN200810200330.XA CN200810200330A CN101686359B CN 101686359 B CN101686359 B CN 101686359B CN 200810200330 A CN200810200330 A CN 200810200330A CN 101686359 B CN101686359 B CN 101686359B
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Abstract
The invention provides an HDMI distributor, which can covert input HDMI signal into multi-path consistent and synchronous HDMI signals for inputting. The HDMI distributor has the abilities of buffering and amplifying; and in regard to the input HDMI signal, long distance transmission exceeding 20m can be realized by series mounting, and the number of output ports can be increased by a stacking way. The HDMI distributor provides solutions for the following applications: retailing and displaying places of HDTV, digital set-top boxes, DVD and projectors, test environment of production factories of HDTV, digital set-top boxes, DVD and projectors, data center control, information distribution, conference room illustration, teaching environment and training sites.
Description
Technical field
The present invention relates to a kind of distributor, be specifically related to a kind of HDMI distributor distribution method.
Background technology
HDMI (High Definition Multimedia Interface) HDMI (High Definition Multimedia Interface) is a kind of unpressed digital consumption electronic product interface standard, it merges high definition video and multi channel audio signal to be connected to and in single digital interface, synthesizes processing, send out by single line cable, it is a digital technology standard for household appliances manufacturing, be widely used in DVD player, cable TV/satellite television Set Top Box (set-top box), on HDTV and other digital audiovisual equipments, it can improve the quality of digital picture effectively, no longer need to carry out analog-to-digital conversion.
HDMI interface is state-of-the-art Digital Television interface standard in the world at present, is the perfect solution of household appliances digital data transmission, connection.HDMI is based on DVI(Digital Visual Interface) formulate, can be regarded as strengthening and the extension of DVI, both can be compatible.HDMI can be with high score pigtail rate video and the multichannel audio data of Digital Transmission uncompressed in the situation that keeping high-quality, high transmission speed is that 5Gbps o is indubitable, HDMI (High Definition Multimedia Interface) HDMI is the indispensable important component of audiovisual industry, it is by a large main flow trend that is following audiovisual industry development, therefore HDMI connector also will become the common focus of paying close attention to of connector industry undoubtedly, in order to comply with this trend, industry is constantly released many new structures successively to meet the demand of high-speed transfer.
HDMI is the coffret of developing for next generation multimedia audio-visual devices, is applicable to Digital Television, DVD player, DVD videocorder, PVR, Set Top Box and other digital audio-video products of digital household appliances.Its greatest feature is that HDMI interface can transmit audio signal and the high definition video signal without compression in a transmission cable.Along with the increase of the end product with HDMI interface, the audio-video frequency distributor product of AV before some public arenas needs such as bar, sales field are similar.
Summary of the invention
According to the present invention, a kind of HDMI distributor is provided, the HDMI signal of input can be converted to consistent, the synchronous HDMI signal output of multichannel.This HDMI distributor has buffering, amplifying power, for the HDMI signal of input, can realize the long-distance transmissions that exceedes 20 meters by the method for serial connection, increases output port quantity by stack manner.This HDMI distributor provides the retail of solution: HDTV, top box of digital machine, DVD, projector and shows place for applying below; The test environment of HDTV, top box of digital machine, DVD, production plant of projector; The application in data center's control, information distribution, meeting room demonstration, teaching environment and training place.
For achieving the above object, the present invention adopts following technical scheme.
A kind of distributor, is specifically related to a kind of HDMI distributor, it is characterized in that, comprises HDMI source device; HDMI interface receiving equipment; Minimize difference sampling channel; Show digital channel.
Above-mentioned HDMI source device also comprises: HDMI transmitter; The video being connected with above-mentioned HDMI transmitter by HDMI connecting line, audio frequency.
Above-mentioned HDMI interface receiving equipment also comprises: HDMI receiver; The video being connected with above-mentioned HDMI transmitter by HDMI connecting line, audio frequency.
Above-mentioned HDMI source device is connected with HDMI interface receiving equipment by minimizing difference sampling channel.
Above-mentioned HDMI source device is connected rear by showing that after digital channel negotiation, data communication is set up by minimizing difference sampling channel with HDMI interface receiving equipment.
Input chip CAT6011 is housed in above-mentioned HDMI transmitter.
In above-mentioned HDMI receiver, pio chip CAT6611 is housed.
Above-mentioned HDMI distributor is rectangular structure, comprises front panel and rear board, and above-mentioned front panel also comprises HDMI input interface indicator light, HDMI output interface indicator light and power supply indicator;
Above-mentioned rear board, also comprises HDMI input interface, HDMI output interface and power interface.
Accompanying drawing explanation
Accompanying drawing 1 is operation principle block diagram of the present invention;
Accompanying drawing 2 is front view of the present invention;
Accompanying drawing 3 is rear view of the present invention;
Accompanying drawing 4 is normal startup flow chart of the present invention.
Embodiment
Below further illustrate with reference to the accompanying drawings a kind of preferred embodiments of the present invention:
A kind of distributor, is specifically related to a kind of HDMI distributor, it is characterized in that, comprises HDMI source device; HDMI interface receiving equipment; Minimize difference sampling channel; Show digital channel.
Above-mentioned HDMI source device also comprises: HDMI transmitter; The video being connected with above-mentioned HDMI transmitter by HDMI connecting line, audio frequency.
Above-mentioned HDMI interface receiving equipment also comprises: HDMI receiver; The video being connected with above-mentioned HDMI transmitter by HDMI connecting line, audio frequency.
Above-mentioned HDMI source device is connected with HDMI interface receiving equipment by minimizing difference sampling channel.
Above-mentioned HDMI source device is connected rear by showing that after digital channel negotiation, data communication is set up by minimizing difference sampling channel with HDMI interface receiving equipment.
Input chip CAT6011 is housed in above-mentioned HDMI transmitter.
In above-mentioned HDMI receiver, pio chip CAT6611 is housed.
Above-mentioned HDMI distributor is rectangular structure, comprises front panel and rear board, and above-mentioned front panel also comprises HDMI input interface indicator light, HDMI output interface indicator light and power supply indicator;
Above-mentioned rear board, also comprises HDMI input interface, HDMI output interface and power interface.
Below further illustrate with reference to the accompanying drawings:
Shown in Figure 1, HDMI source device 10 is connected middle for minimizing difference sampled signal with HDMI interface receiving equipment 20, it is the data channel that three pairs of differential signals add EDID, test source passes through to show that after digital channel 40 negotiations, data communication is set up after connecting output equipment (television set or HDMI input equipment) by HDMI connecting line.
Shown in Fig. 2, HDMI distributor is rectangular structure, comprises front panel and rear board, and above-mentioned front panel also comprises HDMI input interface indicator light, HDMI output interface indicator light and power supply indicator;
When input HDMI signal, corresponding HDMI input interface indicator light is bright; In the time having the output of HDMI signal, corresponding HDMI output interface indicator light is bright.
Shown in Fig. 3, above-mentioned rear board, also comprises HDMI input interface, HDMI output interface and power interface.
Shown in Fig. 4,
The first step: system powers on;
Second step: MCU initialization;
The 3rd step: MCU detects input/output port CAT6011, CAT6611 chip status, if success, LED2-10 extinguishes, again rebound the 3rd step; If failure, carries out the 4th step;
The 4th step: detect INPUT port HDMI signal, if without connection, again detect, till having connection; If there is connection, carry out the 5th step;
The 5th step: the input of HDMI signal, LED10 lights;
The 6th step: detect OUTPUT port HDMI equipment: HDMI output in corresponding port stops, and corresponding port LED extinguishes; HDMI signal outputs to corresponding port, and corresponding port LED lights;
The 7th step: detect INPUT port HDMI signal, cut off HDMI output without connecting, LED2-10 extinguishes, and the 4th step is carried out in rebound; Keep connecting rebound and carry out the 6th step.
In sum, the present invention has the following advantages:
HDMI distributor can convert the HDMI signal of input to consistent, the synchronous HDMI signal output of multichannel.This HDMI distributor has buffering, amplifying power, for the HDMI signal of input, can realize the long-distance transmissions that exceedes 20 meters by the method for serial connection, increases output port quantity by stack manner.
Claims (3)
1. a HDMI distributor distribution method, described HDMI distributor comprises HDMI source device, HDMI interface receiving equipment, minimizes difference sampling channel and shows digital channel, described HDMI source device comprises HDMI transmitter, described HDMI interface receiving equipment comprises HDMI receiver, and input chip CAT6011 is housed in described HDMI transmitter; Pio chip CAT6611 is housed in described receiver; Described HDMI source device is connected with HDMI interface receiving equipment by minimizing difference sampling channel, it is characterized in that, said method comprising the steps of:
The first step: system powers on;
Second step: MCU initialization;
The 3rd step: MCU detects input/output port CAT6011, CAT6611 chip status, if success, LED2-10 extinguishes, again rebound the 3rd step; If failure, carries out the 4th step;
The 4th step: detect INPUT port HDMI signal, if without connection, again detect, till having connection; If there is connection, carry out the 5th step;
The 5th step: the input of HDMI signal, LED10 lights;
The 6th step: detect OUTPUT port HDMI equipment: HDMI output in corresponding port stops, and corresponding port LED extinguishes; HDMI signal outputs to corresponding port, and corresponding port LED lights;
The 7th step: detect INPUT port HDMI signal, cut off HDMI output without connecting, LED2-10 extinguishes, and the 4th step is carried out in rebound; Keep connecting rebound and carry out the 6th step.
2. the distribution method of HDMI distributor according to claim 1, is characterized in that, described HDMI source device is connected rear by showing that after digital channel negotiation, data communication is set up by minimizing difference sampling channel with HDMI interface receiving equipment.
3. the distribution method of HDMI distributor according to claim 1, is characterized in that, described HDMI distributor is rectangular structure, comprise front panel and rear board, described front panel, also comprises HDMI input interface indicator light, HDMI output interface indicator light and power supply indicator;
Described rear board, also comprises HDMI input interface, HDMI output interface and power interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810200330.XA CN101686359B (en) | 2008-09-24 | 2008-09-24 | HDMI distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810200330.XA CN101686359B (en) | 2008-09-24 | 2008-09-24 | HDMI distributor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101686359A CN101686359A (en) | 2010-03-31 |
| CN101686359B true CN101686359B (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810200330.XA Active CN101686359B (en) | 2008-09-24 | 2008-09-24 | HDMI distributor |
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| Country | Link |
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| CN (1) | CN101686359B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739610B (en) * | 2011-04-08 | 2015-10-07 | 瑞昱半导体股份有限公司 | Be used in machinery of consultation and the electronic installation of HDMI (High Definition Multimedia Interface) ethernet channel |
| CN102779020A (en) * | 2011-05-12 | 2012-11-14 | 北京牡丹电子集团有限责任公司 | Ultra high definition liquid crystal display device |
| CN102497515B (en) * | 2011-12-07 | 2013-10-09 | 青岛艾孚高清技术有限公司 | SIMO (single-input multiple-output) type HDMI (high-definition multimedia interface) distributor device |
| CN103000140B (en) * | 2012-11-23 | 2014-11-26 | 合肥工业大学 | LED (Light Emitting Diode) light source dynamic control method used for DLP (Digital Light Procession) projection |
| CN113382181B (en) * | 2021-06-10 | 2023-12-15 | 合肥市华宇半导体有限公司 | Digital distributor for converting DP into HDMI chip |
| CN113873300A (en) * | 2021-08-23 | 2021-12-31 | 福建数博讯信息科技有限公司 | Video playing task pushing method based on handheld identity card reader |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101188723A (en) * | 2006-11-23 | 2008-05-28 | Lg电子株式会社 | Media sink device, media source device and method of controlling the same |
-
2008
- 2008-09-24 CN CN200810200330.XA patent/CN101686359B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101188723A (en) * | 2006-11-23 | 2008-05-28 | Lg电子株式会社 | Media sink device, media source device and method of controlling the same |
Non-Patent Citations (1)
| Title |
|---|
| 冯瑞明.HDMI分配器的设计与实现.《世界电子元器件》.2007,(第6期),47-50. * |
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| Publication number | Publication date |
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| CN101686359A (en) | 2010-03-31 |
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Owner name: SHANGHAI LUDONG ELECTRONICS CO., LTD. Free format text: FORMER OWNER: SHANGHAI GOLDCOMM INFORMATION TECHNOLOGY CO., LTD. Effective date: 20140606 |
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Effective date of registration: 20140606 Address after: 201600 Shanghai Songjiang District Chedun town car No. 180 Jia 1 Building 3 floor Patentee after: SHANGHAI LUDONG ELECTRONICS CO., LTD. Address before: Shanghai city 201203 GuoShouJing Road No. 351 Building No. 2 room 696-22 Patentee before: Shanghai Guo-Kuan Information Technology Co., Ltd. |
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Address after: 201600 Shanghai Songjiang District Chedun town car No. 180 Jia 1 Building 3 floor Patentee after: Shanghai Leado Electronics Co., Ltd. Address before: 201600 Shanghai Songjiang District Chedun town car No. 180 Jia 1 Building 3 floor Patentee before: SHANGHAI LUDONG ELECTRONICS CO., LTD. |