CN101252664B - MIMO multimedia system and method - Google Patents
MIMO multimedia system and method Download PDFInfo
- Publication number
- CN101252664B CN101252664B CN 200710076028 CN200710076028A CN101252664B CN 101252664 B CN101252664 B CN 101252664B CN 200710076028 CN200710076028 CN 200710076028 CN 200710076028 A CN200710076028 A CN 200710076028A CN 101252664 B CN101252664 B CN 101252664B
- Authority
- CN
- China
- Prior art keywords
- audio
- decoder module
- video
- module
- output
- 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
Links
Images
Abstract
The invention relates to a multimedia system which can simultaneously receive a plurality of input sources and output at a plurality of output terminals (multi-input and multi-output for short) and the method thereof. The multimedia system comprises a first decode module and a second decode module which are connected through communication, and connected with the a plurality of media input sources; a main control unit connected with the two decode modules; a video matrix module connected with the two decode modules and used for controlling the video output channel of the video signal of each input source; first video output equipment and second video output equipment which are connected with the video matrix module; an audio matrix module connected with the two decode modules and used for controlling the audio output channel of the audio signal of each input source; first audio output equipment and second audio output equipment which are connected with the audio processing module. In the invention, the audio-visual demand of the user is met through a set of system, therefore, the production cost and the operation cost are effectively reduced.
Description
Technical field
The present invention relates to a kind of multimedia system method of unifying, more specifically, relate to and a kind ofly can receive a plurality of input sources simultaneously, and on a plurality of outputs the multimedia system of output video and audio frequency (hereinafter abbreviating " multiple-input, multiple-output " as) method of unifying, this multimedia system method of unifying may be used in the onboard system.
Background technology
Fig. 1 is the system framework figure of common multimedia system.This multimedia system by decoder module 1 (for example, decoding chip) receives the decode the information of multimedia sources, the information that decoding is come out gives video drive 2 and the audio driven (not shown) is handled, show and broadcast by front-end output 3 then, alternatively, can also export 4 by the backstage shows and broadcast.
Though this multimedia system (for example can receive multiple input source, TV signal, DVD player signal), but can only receive/handle a kind of video source at synchronization, even this multimedia system is connected with a plurality of picture output devices (for example the output of front-end output 3 and backstage 4) and audio output apparatus (as loud speaker), in the identical moment, these picture output devices all show identical picture, and the sound that audio frequency apparatus output is identical can't satisfy the demands of consumers.
For example, the people who is sitting in the automobile previous section may want to listen a radio reception, and the people who is sitting in the automobile back may want by seeing a film.And existing in-vehicle multi-media system generally can only be exported a kind of vision signal and audio signal at synchronization, that is to say, former and later two displays of onboard system show identical content, and the loud speaker of onboard system broadcasts identical sound, can't satisfy passenger's requirement of (comprising the driver).
Therefore, need a kind ofly can to receive a plurality of input sources simultaneously, and on a plurality of outputs the multimedia system of output video and audio frequency (in this specification abbreviate it " the multiple-input, multiple-output ") method of unifying.
Summary of the invention
The technical problem to be solved in the present invention is, at prior art the signal of multiple multimedia input source can not be outputed to defective on the different output equipments at synchronization, provide a kind of and receive multiple multimedia input source and the multimedia system of output video and audio frequency (in this specification abbreviate it " the multiple-input, multiple-output ") method of unifying on a plurality of outputs.
On the one hand, the technical solution adopted for the present invention to solve the technical problems is: construct a kind of multimedia system of multiple-input, multiple-output, comprising:
First decoder module that communicates to connect and second decoder module, described first decoder module is connected with the first multimedia input source, and described second decoder module is connected with the second multimedia input source;
The main control unit that is connected with second decoder module with described first decoder module;
Be connected, be used to control the video matrix module of video output channel of the vision signal of each input source with second decoder module with described first decoder module;
First picture output device and second picture output device that are connected with described video matrix module;
Be connected, be used to control the Audio Matrix module of audio frequency output channel of the audio signal of each input source with second decoder module with described first decoder module;
First audio output apparatus and second audio output apparatus that are connected with described Audio Matrix module.
In described multiple-input, multiple-output multimedia system, described first decoder module is as the main decoder module of often opening, and described second decoder module is as the auxilliary decoder module that can select to open.
In described multiple-input, multiple-output multimedia system, described first picture output device is as the main picture output device of often opening, and described second picture output device is as the auxilliary picture output device that can select to open.
In described multiple-input, multiple-output multimedia system, described multimedia system also comprises the audio digital to analog converter that is serially connected between described Audio Matrix module and described first decoder module, second decoder module.
In described multiple-input, multiple-output multimedia system, described first decoder module and second decoder module also are connected to external source of audio signals by the audio frequency analog to digital converter.
In described multiple-input, multiple-output multimedia system, described video matrix module also is connected with the video signal source of outside.
On the other hand, the present invention also provides a kind of multi-media processing method of multiple-input, multiple-output, it is characterized in that, may further comprise the steps:
S1, receive and the signal of the first multimedia input source of decoding by first decoder module;
S2, receive and the signal of the second multimedia input source of decoding by second decoder module;
The video output channel of S3, the vision signal by each input source of video matrix module controls;
S4, on video display apparatus, show the vision signal of corresponding video output channel;
The audio frequency output channel of S5, the audio signal by each input source of Audio Matrix module controls;
S6, with the audio signal output of audio frequency output channel to corresponding audio output apparatus.
In described multiple-input, multiple-output multi-media processing method, between described step S2 and step S3, also comprise the steps: S20, audio signal changed by audio digital to analog converter.
In described multiple-input, multiple-output multi-media processing method, further comprising the steps of: the audio signal that receives external audio source by described first, second decoder module.
In described multiple-input, multiple-output multi-media processing method, further comprising the steps of: the vision signal that receives external video source by described video matrix module.
Compared with prior art, the present invention has following beneficial effect:
1, multimedia system of the present invention can receive multiple multimedia input source simultaneously, and realizes the different input source of output in the different output equipments, has realized " multiple-input, multiple-output ", and a cover system satisfies different users' needs.For example, multimedia system of the present invention is applied in the onboard system, can satisfies vehicle proparea, the different passengers' in back zone amusement demand.
2, multimedia system of the present invention can satisfy a plurality of users' different demands, does not need to have reduced manufacturing cost, operating cost effectively for a plurality of users are equipped with the multi-section multimedia system.In addition, also reduced the mandate cost, for example, the patent fee of DVD is charged by " platform ", and the multimedia system of the application of the invention can reduce the license expense of DVD effectively.
3, decoder module of the present invention can use conventional decoding chip, and this chip cost is lower, thereby has controlled whole cost effectively.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the system framework figure of common multimedia system;
Fig. 2 is the system framework figure of an embodiment of multimedia system of the present invention;
Fig. 3 is the system framework figure of an alternative embodiment of the invention;
Fig. 4 is the circuit theory diagrams of embodiment shown in Figure 3.
Embodiment
The present invention relates to a kind ofly can receive multiple multimedia input source simultaneously, and the multimedia system of realizing the input source that output in the different output equipments the is different multi-media processing method of unifying.
Fig. 2 is the system framework figure of an embodiment of multimedia system of the present invention, as shown in Figure 2, multimedia system comprises main control unit 10, first decoder module 11, second decoder module 12, video matrix 15, Audio Matrix 17, first picture output device 21, second picture output device 22, first audio output apparatus 31 and second audio output apparatus 32.Wherein, but two-way communication between first decoder module and second decoder module, and these two decoder modules are subjected to main control unit 10 controls.First decoder module 11 is connected with the first multimedia input source 13, and second decoder module 12 is connected with the second multimedia input source 14.The vision signal of gained is sent into video matrix module 15 after the decoding of first and second decoder modules, and the audio signal of decoding gained is sent into Audio Matrix module 17.Video matrix module 15 is controlled the video outgoing route of the vision signal of different input sources, and video is outputed in first and second picture output devices 21 and 22 corresponding with the video outgoing route.The audio frequency outgoing route of the audio signal of different input sources is controlled in 17 controls of Audio Matrix module, and audio frequency is outputed in first and second audio output apparatus 31 and 32 corresponding with the audio frequency outgoing route.
For example, first and second decoder modules become rgb video signal and CVBS (composite video baseband signal) with the video-information decoding of multimedia input source, these vision signals are after 15 controls of video matrix module, rgb signal wherein outputs to first picture output device 21, and the CVBS signal outputs to second picture output device 22.
Similarly, after outside audio frequency input source is selected through the audio frequency input matrix, be converted to the I2S signal by audio A C and offer first decoder module 11 and/or second decoder module 12, these signals are handled back output through decoding ASP audio, pass through the control of Audio Matrix module 17 subsequently, and export in first audio output apparatus 31 and/or the second audio frequency output module 32.
The operating procedure of multimedia system shown in Figure 2 is as follows:
The signal of S1,11 receptions of first decoder module and the first multimedia input source 13 of decoding;
The signal of S2,12 receptions of second decoder module and the second multimedia input source 14 of decoding;
The video output channel of the vision signal of S3, video matrix module 15 each input sources of control;
S4, on video display apparatus 21,22 vision signals that show the corresponding video output channels;
The audio frequency output channel of the audio signal of S5, Audio Matrix module 17 each input sources of control;
S6, with the audio signal output of audio frequency output channel to corresponding audio output apparatus.
Those skilled in the art will recognize, between described step S2 and step S3, also comprise the steps: S20, audio signal changed by audio digital to analog converter.
In addition, under some situation, further comprising the steps of: the audio signal that receives external audio source by described first, second decoder module 11,12.
Also may may further comprise the steps: the vision signal that receives external video source by described video matrix module 15.
Fig. 3 is the system framework figure of an alternative embodiment of the invention, and present embodiment is the framework schematic diagram according to an in-vehicle multi-media system of the present invention.The framework of the multimedia system of present embodiment is similar to the framework of embodiment shown in Figure 2.In the present embodiment, use two decoding chip MPEG IC1 and MPEG IC2 to realize the function of above-mentioned decoder module 11,12, these two decoding chips are by single-chip microcomputer (MCU) 10 controls and management.Decoding chip MPEG IC1 can be connected with the USB peripheral hardware, decoding chip MPEGIC2 and DVD player core, SD card connection.
Wherein, MUC is as main control unit, and response external is instructed, the execution of decoded command and relevant operation; These two decoding chips are finished all digital coding and decoding work, and the generation of graphic user interface (GUI).Produce the video output signals of RGB and two kinds of forms of CVBS (composite video baseband signal) through the decoding back from the image information of DVD player core and other peripheral hardwares, vision signal is by the control of video matrix, rgb signal outputs to the TFT display screen 23 of vehicle-carrying DVD, shows as the foreground; The CVBS signal outputs to the back seat Vehicular display device in back way.
Similar with embodiment shown in Figure 2, outside vision signal (picture signal of picking up as television image signal, side mirror camera) is directly in the input video matrix module 15.For example, these vision signals are with the input of CVBS form, by directly showing on TFT display screen 23 behind the video matrix.
The Audio Processing aspect, internal audio frequency signal (as by the audio signal of DVD player core output, the audio file of external equipment storage) carries out audio with digital form input decoding chip and handles (ASP), pass through audio frequency digital-to-analogue conversion (DAC) 16 again and output to 5.1 channel audio matrixes 17 and stereo audio matrix 17, afterwards, 5.1 sound channel is exported with foreground mode, stereo output in back way.
Similarly, external audio signal can pass through analog-to-digital conversion (ADC) 18 earlier by the selection of Audio Matrix, the digital signal that converts the I2S form to enters decoding chip carries out obtaining 5.1 channel audio signal after audio is handled (ASP), and processing procedure thereafter is identical with the internal audio frequency signal processing mode.
In an alternative embodiment, multimedia system of the present invention can receive the information of DVD, SD, USB, broadcasting (Radio), XM, iPod, navigation (Navigation), TV, bluetooth (Bluetooth), Aux In, camera multiple source of media such as (Camera).These source of media can switch to the foreground, also can select to switch to the backstage, and the backstage can open and close, and after the backstage was closed, the audio frequency on backstage, video channel were audio frequency, the video channel that the foreground is derived from body.
Certainly, the foreground, the source, backstage can be identical.In order to better meet passenger's requirement, picture-in-picture (PIP) switch also is set, in AM/BAM or remote controller so that the PIP video shows.
In addition, the TTFT video preferentially shows, system's setting (MPEG video source), and camera (Camera), the visual prompts of navigation (Navigation) is as the video source of three high priorities, and MPEG IC1 or MPEG IC2 are as preferential decoding chip.Similarly, the foreground audio frequency is preferentially play; The voice-grade channel of three high priorities is set: EWS and the TA (radio reception voice-grade channel) of the highest RDS of being secondly are the voice suggestions of navigation (Navigation), are bluetooth handsfree once more.
Fig. 4 is the circuit theory diagrams of multimedia system shown in Figure 3.If shown in, between decoding chip MPEGIC1 and the MPEG IC2 is intercommunication, they can receive the information of multimedia input sources such as usb terminal, SD card, and simultaneously, outside audio signal (radio reception, ipod etc.) can be input in these two decoding chips by audio A C.These two decoding chips are decoded to the signal of coming under the guide of main control unit, audio signal parts outputs to the Audio Matrix module via audio frequency DAC, and output in the different audio output apparatus by the Audio Matrix module, video section is sent into the video matrix module and is had in the different picture output device of video matrix module output.
The present invention and building blocks of function thereof are described above, these building blocks of functions have been described the realization of specific effective efficiency.For convenience of description, the border of these building blocks of functions and order are arbitrarily definition.Similarly, (border and the order) of process step also is arbitrarily to define, so that specific effective efficiency to be described.On wider scope, border that can definition module and scope and still carry out some clear and definite function.These of building blocks of function and process step replace definition and order all falls into scope and the essence that the present invention requires.
Functional module described in the application and other example modules can adopt the processor of discrete device, application-specific integrated circuit (ASIC), the suitable software of execution and combination thereof to realize.
Claims (10)
1. the multimedia system of multiple-input, multiple-output is characterized in that, comprising:
First decoder module (11) that communicates to connect and second decoder module (12), described first decoder module (11) is connected with the first multimedia input source, and described second decoder module (12) is connected with the second multimedia input source;
The main control unit (10) that is connected with second decoder module (12) with described first decoder module (11);
Be connected, be used to control the video matrix module (15) of video output channel of the vision signal of each input source with second decoder module (12) with described first decoder module (11);
First picture output device (21) that is connected with described video matrix module (15) and second picture output device (22);
Be connected, be used to control the Audio Matrix module (17) of audio frequency output channel of the audio signal of each input source with second decoder module (12) with described first decoder module (11);
First audio output apparatus (31) that is connected with described Audio Matrix module (17) and second audio output apparatus (32).
2. multimedia system according to claim 1 is characterized in that, described first decoder module (11) is as the main decoder module of often opening, and described second decoder module (12) is as the auxilliary decoder module of selecting to open.
3. multimedia system according to claim 1 is characterized in that, described first picture output device (21) is as the main picture output device of often opening, and described second picture output device (22) is as the auxilliary picture output device of selecting to open.
4. multimedia system according to claim 1 is characterized in that, described multimedia system also comprises the audio digital to analog converter (16) that is serially connected between described Audio Matrix module (17) and described first decoder module, second decoder module.
5. according to any described multimedia system in the claim 1 to 4, it is characterized in that described first decoder module (11) and second decoder module (12) also are connected to external source of audio signals by audio frequency analog to digital converter (18).
6. multimedia system according to claim 5 is characterized in that, described video matrix module (15) also is connected with the video signal source of outside.
7. the multi-media processing method of multiple-input, multiple-output is characterized in that, may further comprise the steps:
S1, receive and the signal of the first multimedia input source of decoding by first decoder module;
S2, receive and the signal of the second multimedia input source of decoding by second decoder module;
The video output channel of S3, the vision signal by each input source of video matrix module controls;
S4, on video display apparatus, show the vision signal of corresponding video output channel;
The audio frequency output channel of S5, the audio signal by each input source of Audio Matrix module controls;
S6, with the audio signal output of audio frequency output channel to corresponding audio output apparatus.
8. multi-media processing method according to claim 7 is characterized in that, between described step S2 and step S3, also comprises the steps:
S20, audio signal is changed by audio digital to analog converter.
9. according to claim 7 or 8 described multi-media processing methods, it is characterized in that, further comprising the steps of:
Receive the audio signal of external audio source by described first, second decoder module.
10. multi-media processing method according to claim 9 is characterized in that, and is further comprising the steps of:
Receive the vision signal of external video source by described video matrix module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710076028 CN101252664B (en) | 2007-07-17 | 2007-07-17 | MIMO multimedia system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710076028 CN101252664B (en) | 2007-07-17 | 2007-07-17 | MIMO multimedia system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101252664A CN101252664A (en) | 2008-08-27 |
| CN101252664B true CN101252664B (en) | 2010-12-01 |
Family
ID=39955827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710076028 Expired - Fee Related CN101252664B (en) | 2007-07-17 | 2007-07-17 | MIMO multimedia system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101252664B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012079244A1 (en) * | 2010-12-17 | 2012-06-21 | 联发科技（新加坡）私人有限公司 | Vehicle multimedia player control chip and drive method thereof |
| CN103024519A (en) * | 2013-01-15 | 2013-04-03 | 王涛 | Set-top box for supporting multiple devices to receive different programs and implementation method thereof |
| CN103945305B (en) * | 2013-01-21 | 2018-07-06 | 联想(北京)有限公司 | The method and electronic equipment of a kind of information processing |
| CN103297650B (en) * | 2013-06-21 | 2016-08-17 | 南京长鹏光电科技有限公司 | A kind of high bat projection arrangement based on computer background work and control method |
| CN103997614B (en) * | 2014-03-28 | 2017-11-24 | 惠州市德赛西威汽车电子股份有限公司 | A kind of vehicle-mounted USB+AUX_IN integrated devices |
| CN108076211A (en) * | 2016-11-11 | 2018-05-25 | 法乐第(北京)网络科技有限公司 | Audio output device, method and automobile based on Android |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6741587B2 (en) * | 2002-04-02 | 2004-05-25 | Nokia Corporation | Inter-frequency measurements with MIMO terminals |
| WO2006064911A1 (en) * | 2004-12-17 | 2006-06-22 | Matsushita Electric Industrial Co., Ltd. | Detection method |
| CN201118815Y (en) * | 2007-07-23 | 2008-09-17 | 惠州华阳通用电子有限公司 | Multi-input and multi-output multimedia system |
-
2007
- 2007-07-17 CN CN 200710076028 patent/CN101252664B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6741587B2 (en) * | 2002-04-02 | 2004-05-25 | Nokia Corporation | Inter-frequency measurements with MIMO terminals |
| WO2006064911A1 (en) * | 2004-12-17 | 2006-06-22 | Matsushita Electric Industrial Co., Ltd. | Detection method |
| CN201118815Y (en) * | 2007-07-23 | 2008-09-17 | 惠州华阳通用电子有限公司 | Multi-input and multi-output multimedia system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101252664A (en) | 2008-08-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101252664B (en) | MIMO multimedia system and method | |
| CN105430338B (en) | Car entertainment AVB systems | |
| CN100496102C (en) | Apparatus for receiving digital multimedia broadcasting (DMB) channels | |
| US8417850B2 (en) | Information processing device and method for processing signal of information processing device | |
| CN100405832C (en) | TV set apparatus capable of simultaneously receiving and playing multi-channel programs | |
| CN101742156B (en) | High-resolution digital television all-in-one machine and implementation method thereof | |
| CN100508552C (en) | Television system | |
| US8077741B2 (en) | Multiplexing network system and digital information transferring method | |
| CN1825938A (en) | Video apparatus and method for controlling the same | |
| CN101873454A (en) | Audio processing equipment and audio-frequency processing method | |
| CN1204211A (en) | Method for displaying subchannel information in digital TV receiver | |
| CN103686546A (en) | Method for controlling multichannel sound distributing and switching of vehicle-mounted terminal | |
| CN101068318A (en) | Design technique for separate television capable of receiving multichannel TV signal and apparatus thereof | |
| US20130070082A1 (en) | Wireless vehicle audio/video system | |
| CN201118815Y (en) | Multi-input and multi-output multimedia system | |
| JP3113588U (en) | Conversion interface for AV satellite navigation system for cars | |
| CN102300059A (en) | Television playing system and auxiliary playing device | |
| CN101247490A (en) | Portable off-site video relay broadcasting system | |
| CN101039390A (en) | Method for switching digital/analog signal reception and television for realizing the function | |
| CN203340192U (en) | Audio-visual playing system of passenger car | |
| CN2896738Y (en) | Accompanying-sound out-put circuit of multi-picture TV set | |
| CN1525728A (en) | Mobile telephone with TV play function | |
| KR200470360Y1 (en) | An apparatus for playing multimedia contents for vehicle | |
| CN105847715A (en) | Multimedia playing device | |
| CN206602603U (en) | A kind of rear seat entertainment system for supporting MOST buses |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20101201 Termination date: 20190717 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |