CN201557195U - High-definition player - Google Patents

High-definition player Download PDF

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Publication number
CN201557195U
CN201557195U CN2009203161993U CN200920316199U CN201557195U CN 201557195 U CN201557195 U CN 201557195U CN 2009203161993 U CN2009203161993 U CN 2009203161993U CN 200920316199 U CN200920316199 U CN 200920316199U CN 201557195 U CN201557195 U CN 201557195U
Authority
CN
China
Prior art keywords
hdmi
microprocessor
buffer
player
distributor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2009203161993U
Other languages
Chinese (zh)
Inventor
王海兵
程光锐
赵飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Changhong Electric Co Ltd
Original Assignee
Sichuan Changhong Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan Changhong Electric Co Ltd filed Critical Sichuan Changhong Electric Co Ltd
Priority to CN2009203161993U priority Critical patent/CN201557195U/en
Application granted granted Critical
Publication of CN201557195U publication Critical patent/CN201557195U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to an interface circuit of a player and provides a high-definition player capable of realizing multiway HDMI output. The high-definition player comprises a multimedia processing main chip and a built-in HDMI distributor; a built-in HDMI distributor comprises a microprocessor, a buffer, an HDMI receiver, more than one HDMI transmitter, and HDMI interfaces with the same quantity to the HDMI transmitters; the HDMI receiver is connected with the multimedia processing main chip and is respectively connected with the microprocessor and the buffer; the microprocessor and the buffer are respectively connected with the HDMI transmitters; and the HDMI transmitters are connected with the HDMI interfaces in a one-one correspondence manner. The utility model integrates a traditional high-definition player with a HDMI distributor as a whole, thereby realizing the multiway HDMI output of high-definition signals.

Description

High definition player
Technical field
The utility model relates to the player interface circuit.
Technical background
At present high definition player mainly contains AV from output interface, S-Video, and component and HDMI (HDMI (High Definition Multimedia Interface)), output all has only one the tunnel, AV wherein, S-Video can't support the high-definition signal that 720P is above.In demonstration such as household electrical appliances market and exhibition room occasion, the player that tends to use multichannel output connects a plurality of high definition panel TVs.High definition player on the market is owing to have only one tunnel output, and multichannel is exported external component distributor of palpus or HDMI distributor, and it is higher to connect complexity and cost.Present having combines player and component distributor, and the high definition player of multichannel component output can connect a plurality of high definition panel TVs by the color difference components line.Because high definition player is with memory device, stores digitlization film sources such as hard disks, multimedia processing main chip calculation process signal is a digital signal, and component is an analog signal, therefore component is transferred to digital device display image such as high definition panel TV and will carries out digital-to-analogue and analog-to-digital conversion, cause the partial loss of signal, and be subject in the transmission course disturb.
The utility model content
Technical problem to be solved in the utility model is that a kind of high definition player of realizing multichannel HDMI output is provided.
The utility model is to solve the problems of the technologies described above the technical scheme that is adopted to be, high definition player, comprise the multimedia processing main chip, built-in HDMI distributor, built-in HDMI distributor comprises microprocessor, buffer, the HDMI receiver, HDMI transmitter more than 1, and the HDMI interface that equates with described HDMI transmitter number, described HDMI receiver links to each other with the multimedia processing main chip, the HDMI receiver respectively with microprocessor, buffer links to each other, buffer, microprocessor links to each other with each HDMI transmitter respectively, HDMI interface of the corresponding connection of each HDMI transmitter.
The beneficial effects of the utility model are, will have high definition media player now and the HDMI distributor integrates, and realize the multichannel HDMI output of high-definition signal, do not have digital-to-analogue and analog-to-digital conversion, the signal lossless consumption in transmission and the processing procedure.
Description of drawings
Fig. 1 is the embodiment schematic diagram.
Embodiment
As shown in Figure 1, high definition player has 8 HDMI interfaces, can directly be connected with 8 high definition display devices at most by the HDMI line.The HDMI signal of the highest support of multimedia processing main chip output 1080P is to built-in HDMI distributor in the high definition media player.Be connected with the HDMI holding wire by two gold-plated sockets between multimedia processing main chip and the built-in HDMI distributor, guarantee the reliability that connects.Built-in HDMI distributor comprises microprocessor, buffer, HDMI receiver, 8 HDMI transmitter (HDMI transmitters 1,2 ... 8), 8 HDMI interface (HDMI interfaces 1,2 ... 8), described HDMI receiver links to each other with the multimedia processing main chip, 8 HDMI receivers link to each other with microprocessor, buffer respectively, buffer, microprocessor link to each other with 8 HDMI transmitters respectively, HDMI interface of the corresponding connection of HDMI transmitter.
The HDMI signal of multimedia processing main chip output is converted to control signal, rgb video signal and audio signal to the HDMI receiver, inputs to 8 HDMI transmitters after duplicating amplification via buffer, by realizing 8 road HDMI output with the HDMI interface.Each road is mutually independent, and can arbitrarily connect a plurality of high definition display devices, has realized the multichannel output of HDMI signal.MCU is by the total line traffic control HDMI receiver of I2C and the initialization of 8 HDMI transmitters and the variation of state, finishes reading and the work such as verification of HDCP (HDCP) of EDID (extending display identification data).

Claims (2)

1. high definition player, comprise the multimedia processing main chip, it is characterized in that, also comprise built-in HDMI distributor, described built-in HDMI distributor comprises microprocessor, buffer, HDMI receiver, the HDMI transmitter more than 1 and the HDMI interface that equates with described HDMI transmitter number, described HDMI receiver links to each other with the multimedia processing main chip, the HDMI receiver links to each other with microprocessor, buffer respectively, buffer, microprocessor link to each other with each HDMI transmitter respectively, HDMI interface of the corresponding connection of each HDMI transmitter.
2. high definition player according to claim 1 is characterized in that microprocessor passes through I 2The C bus links to each other with HDMI receiver, HDMI transmitter.
CN2009203161993U 2009-11-30 2009-11-30 High-definition player Expired - Fee Related CN201557195U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009203161993U CN201557195U (en) 2009-11-30 2009-11-30 High-definition player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009203161993U CN201557195U (en) 2009-11-30 2009-11-30 High-definition player

Publications (1)

Publication Number Publication Date
CN201557195U true CN201557195U (en) 2010-08-18

Family

ID=42616884

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009203161993U Expired - Fee Related CN201557195U (en) 2009-11-30 2009-11-30 High-definition player

Country Status (1)

Country Link
CN (1) CN201557195U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102595225A (en) * 2012-03-05 2012-07-18 常州天能博信息科技有限公司 Remote video remote control and playing system
CN103634549A (en) * 2012-08-20 2014-03-12 牛春咏 High-definition player

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102595225A (en) * 2012-03-05 2012-07-18 常州天能博信息科技有限公司 Remote video remote control and playing system
CN103634549A (en) * 2012-08-20 2014-03-12 牛春咏 High-definition player

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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
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100818

Termination date: 20171130