CN102833513B - High definition player - Google Patents
High definition player Download PDFInfo
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- CN102833513B CN102833513B CN201210220227.8A CN201210220227A CN102833513B CN 102833513 B CN102833513 B CN 102833513B CN 201210220227 A CN201210220227 A CN 201210220227A CN 102833513 B CN102833513 B CN 102833513B
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Abstract
The present invention relates to high definition player, it comprises chief editor decoding process module, audio frequency and video processing module and MHL/HDMI multiplexing process module.The signal that described MHL/HDMI multiplexing process module detects input is automatically MHL signal or HDMI signal, if the signal of input is MHL signal, notify described chief editor's decoding process module, control described MHL/HDMI multiplexing process module by chief editor's decoding process module and described MHL signal carried out Signal separator and data packet analysis process and output to chief editor's decoding process module after synthesizing HDMI signal.Described chief editor's decoding process module is used for the HDMI signal received to carry out encoding and decoding, and the data after process are exported to video processing module, and described video processing module processes rear output to decoded data.High definition player of the present invention is provided with the MHL/HDMI multiplexing process module that automatically can identify MHL signal and HDMI signal, thus makes the mobile device of MHL function, as mobile phone can, as the input source of high definition player, use more flexible, convenient.
Description
Technical field
The present invention relates to high definition player.
Background technology
Existing high definition player is all configured with HDMI(High-definition Digital Multimedia Interface, high-definition digital multi-media signal) interface.Along with developing rapidly of mobile device, the mobile device functionality such as mobile phone, panel computer from strength to strength, support that video content resolution is more and more higher, but HDMI is not suitable for use on the mobile devices such as mobile phone due to dimensional problem, have impact on mobile phone and use HDMI signal, also make these mobile devices cannot as the input source of high definition player.
Summary of the invention
Based on this, be necessary the high definition player providing a kind of available mobile device as input source.
A kind of high definition player, it comprises chief editor decoding process module, audio frequency and video processing module and MHL/HDMI multiplexing process module.The signal that described MHL/HDMI multiplexing process module detects input is automatically MHL signal or HDMI signal, if the signal of input is MHL signal, notify described chief editor's decoding process module, control described MHL/HDMI multiplexing process module by chief editor's decoding process module and described MHL signal carried out Signal separator and data packet analysis process and output to chief editor's decoding process module after synthesizing HDMI signal; If detect that the signal of input is HDMI signal, then MHL/HDMI multiplexing process module notice chief editor decoding process module, is controlled to output to the process of chief editor's decoding process module after the HDMI signal received is carried out HDCP verification by described MHL/HDMI multiplexing process module by chief editor's decoding process module.Described chief editor's decoding process module is used for the HDMI signal received to carry out encoding and decoding, and the data after process are exported to video processing module, and described video processing module processes rear output to decoded data.
In a preferred embodiment, described MHL/HDMI multiplexing process module comprises differential signal input and MHL signal input module, MHL/HDMI Signal analysis separation module, MHL signal processing module, HDMI signal processing module, HDMI signal synthesizing module, differential signal output module and I2C driver module.Differential signal input and MHL signal input module are for the output signal that receives from outside MHL equipment or HDMI equipment and the signal received is outputted to MHL/HDMI Signal analysis separation module.MHL/HDMI Signal analysis separation module is for identifying that the signal received is MHL signal or HDMI signal, and recognition result is sent to chief editor's decoding process module by I2C driver module, then according to the control signal of chief editor's decoding process module, MHL signal and HDMI signal are sent to MHL signal processing module and HDMI signal processing module respectively.Described MHL signal processing module is sent to HDMI signal synthesizing module after being used for, under the control of chief editor's decoding process module, MHL signal is converted to HDMI signal.Described HDMI signal processing module is used for carrying out HDCP verification to HDMI signal under the control of chief editor's decoding process module, is sent to HDMI signal synthesizing module after verification succeeds.Described HDMI signal synthesizing module outputs to chief editor's decoding process module by differential signal output module after being used for that the HDMI signal received is converted to TMDS signal.
In a preferred embodiment, the quick control criterion communications protocol of described MHL/HDMI multiplexing process module support.
High definition player of the present invention is provided with the MHL/HDMI multiplexing process module that automatically can identify MHL () signal and HDMI signal, thus made MHL(Mobile High-Definition Link, mobile terminal high-definition audio and video standard interface) mobile device of function, as mobile phone can, as the input source of high definition player, use more flexible, convenient.
Accompanying drawing explanation
Fig. 1 is the structural principle block diagram of the high definition player of an embodiment.
Fig. 2 is the structural principle block diagram of the MHL/HDMI multiplexing process module of an embodiment.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing, high definition player of the present invention is described in further detail.
As shown in Figure 1, in an embodiment, high definition player of the present invention mainly comprises encoding and decoding processing module, audio frequency and video processing module, MHL/HDMI multiplexing process module, network process module, remote control wake module and micro controller module.
Micro controller module is connected with the power module of high definition player, and for controlling the electrifying timing sequence of other module of high definition player, thus it is normal to reach system program initialization.
Network process module is used for making high definition player realize function of surfing the Net.Remote control wake module, for realizing the communication between encoding and decoding processing module and remote controller, receives the user input signal from high definition player control panel and sends to encoding and decoding processing module.
Encoding and decoding processing module is by network process module, MHL/HDMI multiplexing process module and carry out encoding and decoding process from the multi-medium data of memory (DDR memory or flash storage etc.), and the data after process are exported to video processing module, and video processing module by decoded data through HDCP(High-bandwidth Digital Content Protection, HDCP technology) encryption, carry out the conversion of DAC(analog to digital) after conversion process from component vide, HDMI(High-definition Digital Multimedia Interface, high-definition digital multi-media signal) export.
The signal that MHL/HDMI multiplexing process module is used for automatically detecting input is MHL(Mobile High-Definition Link, mobile terminal high-definition audio and video standard interface) signal or HDMI signal, if the signal of input is MHL signal, notify encoding and decoding processing module, the MHL signal received carried out Signal separator and data packet analysis process by encoding and decoding processing module control MHL/HDMI multiplexing process module and output to encoding and decoding processing module after synthesizing HDMI signal; If detect that the signal of input is HDMI signal; then MHL/HDMI multiplexing process module notice encoding and decoding processing module; the HDMI signal received is carried out HDCP(High-bandwidth Digital Content Protection, HDCP by encoding and decoding processing module control MHL/HDMI multiplexing process module) verification after output to the process of encoding and decoding processing module.The quick control criterion communications protocol of MHL/HDMI multiplexing process module support, thus user controls connected MHL equipment by the remote controller of high definition player, user friendly operation.
As shown in Figure 2, in one embodiment, MHL/HDMI multiplexing process module comprises differential signal input and MHL signal input module, MHL/HDMI Signal analysis separation module, MHL signal processing module, HDMI signal processing module, HDMI signal synthesizing module, differential signal output module and I2C(Inter-Integrated Circuit, inter-integrated circuit) driver module.Wherein, MHL/HDMI Signal analysis separation module is connected with encoding and decoding processing module by I2C driver module with MHL signal processing module.I2C driver module, by SDA, SCL signal and the communication of encoding and decoding processing module, is controlled by encoding and decoding processing module.
Differential signal input and MHL signal input module are for the output signal that receives from outside MHL equipment or HDMI equipment and the signal received is outputted to MHL/HDMI Signal analysis separation module.
MHL/HDMI Signal analysis separation module is for identifying that the signal received is MHL signal or HDMI signal, and recognition result is sent to chief editor's decoding process module by I2C driver module, then according to the control signal of chief editor's decoding process module, MHL signal and HDMI signal are sent to MHL signal processing module and HDMI signal processing module respectively.The method of MHL signal and HDMI signal that identifies can be: because the 18th pin of MHL interface is earth-free, if there is MHL equipment access, because MHL equipment has individual pull-up resistor on its 18 pin, so when there being MHL signal to input, this pin can become high level, thus the MHL signal of identifiable design input.If when having HMDI signal to input, this pin is low level, be identified as the input of HMDI signal.
MHL signal processing module is sent to HDMI signal synthesizing module after being used for, under chief editor's decoding process module is by the control of I2C, MHL signal is converted to HDMI signal.
HDMI signal processing module is used for carrying out HDCP verification to HDMI signal under the control of chief editor's decoding process module, is sent to HDMI signal synthesizing module after verification succeeds.
HDMI signal synthesizing module outputs to chief editor's decoding process module by differential signal output module after being used for that the HDMI signal received is converted to TMDS signal.
On high definition player is logical after civil power, civil power is converted to the direct current of 5V by power module, is supplied to micro controller module work, and now micro controller module can receive button and remote signal.After the key of high definition player is pressed, micro controller module, by controlling power module, powers on by setting order as other modules.After power supply is normal, system carries out initialization, and hardware carries out corresponding configuration, and the kernel of decoding chip starts, and other hardware of initialization periphery, after completing, then recall the software of equipment FLASH inside, be put in DDR and run, and machine system starts complete.
When after normal boot-strap, if MHL equipment (as mobile phone etc.) in connection, MHL/HDMI multiplexing process module can detect MHL equipment automatically, chooses the input of MHL equipment, and the HDMI of encoding and decoding processing module control audio frequency and video processing module exports the content automatically switching to MHL equipment and shows.By the remote controller of high definition player, MHL equipment can be selected and input corresponding information by RCP function user, and the high-definition content of MHL equipment being shown on the display device that is connected with high definition player.
So, high definition player of the present invention is provided with the MHL/HDMI multiplexing process module that automatically can identify MHL () signal and HDMI signal, thus made MHL(Mobile High-Definition Link, mobile terminal high-definition audio and video standard interface) mobile device of function, as mobile phone can, as the input source of high definition player, use more flexible, convenient.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (2)
1. a high definition player, it comprises encoding and decoding processing module and audio frequency and video processing module, it is characterized in that, also comprises MHL/HDMI multiplexing process module;
The signal that described MHL/HDMI multiplexing process module detects input is automatically MHL signal or HDMI signal, if the signal of input is MHL signal, notify described encoding and decoding processing module, control described MHL/HDMI multiplexing process module by encoding and decoding processing module and described MHL signal carried out Signal separator and data packet analysis process and output to encoding and decoding processing module after synthesizing HDMI signal; If detect that the signal of input is HDMI signal, then MHL/HDMI multiplexing process module notice encoding and decoding processing module, is controlled to output to the process of encoding and decoding processing module after the HDMI signal received is carried out HDCP verification by described MHL/HDMI multiplexing process module by encoding and decoding processing module;
Described encoding and decoding processing module is used for the HDMI signal received to carry out encoding and decoding, and the data after process are exported to video processing module, and described video processing module processes rear output to decoded data;
Described MHL/HDMI multiplexing process module comprises differential signal input and MHL signal input module, MHL/HDMI Signal analysis separation module, MHL signal processing module, HDMI signal processing module, HDMI signal synthesizing module, differential signal output module and I2C driver module;
Differential signal input and MHL signal input module are for the output signal that receives from outside MHL equipment or HDMI equipment and the signal received is outputted to MHL/HDMI Signal analysis separation module;
MHL/HDMI Signal analysis separation module is for identifying that the signal received is MHL signal or HDMI signal, and recognition result is sent to encoding and decoding processing module by I2C driver module, then according to the control signal of encoding and decoding processing module, MHL signal and HDMI signal are sent to MHL signal processing module and HDMI signal processing module respectively;
Described MHL signal processing module is sent to HDMI signal synthesizing module after being used for, under the control of encoding and decoding processing module, MHL signal is converted to HDMI signal;
Described HDMI signal processing module is used for carrying out HDCP verification to HDMI signal under the control of encoding and decoding processing module, is sent to HDMI signal synthesizing module after verification succeeds;
Described HDMI signal synthesizing module outputs to encoding and decoding processing module by differential signal output module after being used for that the HDMI signal received is converted to TMDS signal.
2. high definition player according to claim 1, is characterized in that, the quick control criterion communications protocol of described MHL/HDMI multiplexing process module support.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210220227.8A CN102833513B (en) | 2012-06-29 | 2012-06-29 | High definition player |
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| CN201210220227.8A CN102833513B (en) | 2012-06-29 | 2012-06-29 | High definition player |
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| CN102833513A CN102833513A (en) | 2012-12-19 |
| CN102833513B true CN102833513B (en) | 2015-10-28 |
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| CN201210220227.8A Expired - Fee Related CN102833513B (en) | 2012-06-29 | 2012-06-29 | High definition player |
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| CN103544038B (en) * | 2013-10-31 | 2017-10-24 | Tcl集团股份有限公司 | One kind is based on 4K2K systematic difference program display method and apparatus |
| CN105100670B (en) * | 2014-05-19 | 2018-09-14 | 宏碁股份有限公司 | Implement the method and its electronic device of mobile high definition transmission technology |
| CN108600444A (en) * | 2018-04-16 | 2018-09-28 | 李苏平 | The method and multipath system of mobile terminal playing multipath audio signal based on input source material |
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| CN202282825U (en) * | 2011-10-27 | 2012-06-20 | 浙江一舟电子科技股份有限公司 | MHL (Mobile High-Definition Link) data conversion system |
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| US8325757B2 (en) * | 2009-12-17 | 2012-12-04 | Silicon Image, Inc. | De-encapsulation of data streams into multiple links |
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| CN101257589A (en) * | 2008-03-30 | 2008-09-03 | 青岛海尔软件有限公司 | High clear digital television code stream instrument of duplex output |
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| CN201601736U (en) * | 2009-12-18 | 2010-10-06 | 康佳集团股份有限公司 | LED video signal processor |
| TW201218753A (en) * | 2010-01-14 | 2012-05-01 | Silicon Image Inc | Transmission and detection of multi-channel signals in reduced channel format |
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Effective date of registration: 20151217 Address after: Chen Jiang Street office Guangdong province 516029 Huizhou Zhongkai Zhongkai high tech Zone Road double light industrial zone DESAY DESAY third new plant on the third floor and seven floor Patentee after: DESAY ELECTRONICS (HUIZHOU) CO., LTD. Address before: 516229 Guangdong city of Huizhou province Chen Zhongkai Road third DESAY Industrial Park Patentee before: Desai Video-Audio Science & Technology Co., Ltd., Huizhou City |
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Granted publication date: 20151028 Termination date: 20200629 |