CN101600041A - Can handle the DPF of multiple audio/video input signals - Google Patents
Can handle the DPF of multiple audio/video input signals Download PDFInfo
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- CN101600041A CN101600041A CNA2008100676841A CN200810067684A CN101600041A CN 101600041 A CN101600041 A CN 101600041A CN A2008100676841 A CNA2008100676841 A CN A2008100676841A CN 200810067684 A CN200810067684 A CN 200810067684A CN 101600041 A CN101600041 A CN 101600041A
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Abstract
A kind of DPF of handling multiple audio/video input signals, comprise power subsystem (201), display screen (203), built-in or external memory cell (202), audio frequency and video/image coding and decoding processor (205) and loud speaker (209), especially, also comprise display processing unit (204), sound processing unit (208), audio/video signal processing unit (206) and operation command processor (207); Described audio/video signal processing unit (206) will go out separate synchronous again Voice ﹠ Video signal from the audio/video Signal Separation of outside input, pass through respectively and deliver to loud speaker (209) and display screen (203) after sound processing unit (208) and display processing unit (204) are handled; Adopt method of the present invention, can handle and show, increase recreational from the audio/video signal of the different-format of outside input.
Description
Technical field
The present invention relates to the device that file or analog reappear, particularly relate to the device of average information storage, relate in particular to the DPF that to handle multiple audio/video input signals.
Background technology
The DPF of prior art is mainly handled the data file by its inner audio frequency and video/image coding and decoding processor, as shown in Figure 1, audio frequency and video/image coding and decoding processor reads files such as the audio frequency and video that are stored in the built-in or external memory cell or picture, through after audio frequency and video/image coding and decoding processor processing, carry out the separating treatment of audio/video signal, the image that separation is obtained exports on the display screen, and the voice signal that separation is obtained exports loud speaker to.
Existing DPF can only show the picture, the sound that are stored in self or the external memory device, can't handle from the audio/video signal of outside input, and for example traditional AV signal is restricted its range of application.
The present invention can realize the audio/video signal of multiple form is handled and shown on DPF, makes the digital photo frame function variation, thereby widens the application of DPF
The DPF of above-mentioned prior art has the following disadvantages: can only handle audio frequency and video, picture file in equipment of being stored in itself or the peripheral storage device, the displaying contents source is single, and range of application is restricted.
Summary of the invention
The technical problem to be solved in the present invention is to avoid above-mentioned the deficiencies in the prior art part and proposes a kind of DPF of handling multiple audio/video input signals.
DPF of the present invention can also be handled the audio/video signal of the different-format of input except possessing the DPF original function, make DPF no longer be confined to only show the data that are stored in the built-in or external memory device.
The present invention solve the technical problem can be by realizing by the following technical solutions: a kind of DPF of handling multiple audio/video input signals, comprise power subsystem, display screen, built-in or external memory cell, audio frequency and video/image coding and decoding processor and loud speaker, the data that described audio frequency and video/image coding and decoding processor will be stored in the built-in or external memory cell are carried out decoding processing, especially, also comprise display processing unit, sound processing unit, audio/video signal processing unit and operation command processor; Described operation command processor is used for the interactive instruction of process user input; Described audio/video signal processing unit will be isolated separate synchronous again Voice ﹠ Video signal from the audio-video signal of outside input, and isolated audio signal is sent to sound processing unit, export loud speaker then to, isolated vision signal is sent to the vision signal display processing unit, exports display screen at last to and show.
Described operation command processor adopts MCU chip able to programme to realize, is used for user's interactive instruction is converted into the manipulation internal instruction code.
Display processing unit is used to handle image or the vision signal that sends from audio frequency and video/image coding and decoding processor or audio/video signal processing unit, and the built-in command code that sends according to operation command processor to received image or vision signal switch, mixed processing, described vision signal comprises analog video signal and digital video signal.
Sound processing unit is used to handle sound or the audio signal that sends from audio frequency and video/image coding and decoding processor or audio/video signal processing unit, and the built-in command code that sends according to operation command processor to received sound or audio signal switch, mixed processing, described audio signal comprises simulated audio signal and digital audio and video signals.
Described display processing unit adopts the complex programmable chip, by it is programmed the analog video signal of input is converted to digital signal, and the digital video signal after the conversion is handled.
Sound processing unit adopts the complex programmable chip, by it is programmed the digital audio and video signals of input is converted to simulated audio signal, and the simulated audio signal after the conversion is handled.
The input signal of described audio/video signal processing unit is at least a kind of, but often be multiple, its input signal interface comprises AV terminal, S terminal, aberration terminal, RGB terminal, VGA terminal and SVGA terminal, digital video D terminal, IEEE1394 terminal, and other self-defined terminal.
Described display processing unit sends image or the vision signal of handling well to display screen by display interface, described display interface and display screen signal input interface coupling.
Described audio frequency and video/image coding and decoding processor adopting complex programmable chip are by recording, preserve processing to its programming to the independent audio-video signal that obtains after the audio/video signal processing unit processes.
Described audio/video signal processing unit processes is from the different-format audio/video signal of outside input, handle the audio/video signal of different-format and must use different chips instead with respective handling ability, thereby obtain separate but synchronous Voice ﹠ Video signal, realize that the audio/video aspect is all multi-functional, comprise broadcast, record, modification and audio frequency mixing, video show simultaneously.
Compare with prior art, the beneficial effect of technical solution of the present invention is:
1, DPF of the present invention can be handled and show from the audio/video signal of the different-format of outside input, comprises and the top box of digital machine butt joint, shows televise content and pickup camera butt joint, realizes the video recording of monitoring in real time;
2, can comprise audio/video signal recording and editor by button easily to operating, increase the recreational of DPF from the audio/video signal of outside input.
Description of drawings
Fig. 1 is the logic diagram that prior art DPF circuit constitutes;
Fig. 2 is the logic diagram that DPF circuit of the present invention constitutes.
Embodiment
Be described in further detail below in conjunction with the most preferred embodiment shown in each accompanying drawing.
The present invention's the DPF that can handle multiple audio/video input signals, as shown in Figure 2, comprise power subsystem 201, display screen 203, built-in or external memory cell 202, audio frequency and video/image coding and decoding processor 205 and loud speaker 209, the data that described audio frequency and video/image coding and decoding processor 205 will be stored in the built-in or external memory cell 202 are carried out decoding processing, especially, also comprise display processing unit 204, sound processing unit 208, audio/video signal processing unit 206 and operation command processor 207; Described operation command processor 207 is used for the interactive instruction of process user input; Described audio/video signal processing unit 206 will be isolated separate synchronous again Voice ﹠ Video signal from the audio-video signal of outside input, and isolated audio signal is sent to sound processing unit 208, export loud speaker 209 then to, isolated vision signal is sent to vision signal display processing unit 204, exports display screen 203 at last to and show.
Described built-in or external memory cell 202 can adopt Flash flush memory device, hard disk etc., is used for memory image, sound or audio/video file, and this memory cell can be placed in the DPF, also can be connected to described DPF from the outside by interface.
Described audio frequency and video/image coding and decoding processor 205 adopts general on the market DSP, MCU or professional audio/video encoding/decoding processor, chips such as image coding and decoding processor, these chips all possess audio/video file, the coding of formatted files such as picture file, decoding function, by these chips self or peripheral companion chip, can isolate the separate but synchronous Voice ﹠ Video signal of wanting required for the present invention, by described audio frequency and video/image coding and decoding processor 205 is programmed, can realize a lot of additional functions, comprise that the independent audio-video signal that audio/video signal processing unit 206 is obtained records processing such as preservation.
As shown in Figure 2, described operation command processor 207 adopts MCU chip able to programme, be used for user's interactive instruction is converted into the manipulation internal instruction code, described interactive instruction, be meant that the external key of user by DPF requires DPF to carry out a certain or carry out the order of multinomial function simultaneously, for example DPF displaying contents source is selected, content play, video recording etc., the built-in command code is meant that the user interactions instruction is become executable program code by the DPF internal conversion, " displaying contents source select " function command for example, its corresponding code may be defined as " 001 ", could be by each correlation unit identification of system through the program converted code.
When operation command processor 207 is undertaken when mutual by button and DPF, can be directly convert the interactive instruction of button to the built-in command code by this operation command processor 207, also can assist the peripheral operation instruction transformation is become the built-in command code, whether select function that general MCU chip sees that DPF need be realized and designing requirement and decide by general MCU chip programmable chips such as (for example 8051 chips).
When operation command processor 207 is undertaken when mutual by touch-screen and other Man Machine Interface and user, owing to need the function of processing more, this unit generally needs to realize the peripheral operation instruction transformation is become the built-in command code by the programming to them by general MCU chip (for example 8051 chips) or directly by the assistance realization of audio frequency and video/image coding and decoding processor 205.
Described display processing unit 204 adopts the complex programmable chip, by it is programmed the analog video signal of input is converted to digital signal, and the digital video signal after the conversion is handled.
As shown in Figure 2, display processing unit 204 and sound processing unit 208 are behind the built-in command code that reception instruction process unit 207 sends over, audio-video signal to audio frequency and video/image coding and decoding processor 205 or 206 outputs of audio/video signal processing unit is handled by instruction code, can realize many functions such as switching, mixing, these functions all can realize by the programming to display processing unit 204 and sound processing unit 208.
If 1 signal that receives is an analog video signal, convert thereof into digital video signal, for example, if what send from audio/video signal processing unit 206 is S terminal vision signal, so by chip SAA7113, can directly convert thereof into digital video signal, obtain 8 displays content data and control signal;
If 2 signals that receive are digital video signals, so just need not to carry out again digitized processing, be exactly digital signal as the signal itself that audio frequency and video/image coding and decoding processor 205 sends, so just need not this signal is carried out conversion process.
If 1 signal that receives is a digital audio and video signals, then the audio signal that sends from audio/video signal processing unit 206 is changed into simulated audio signal, when handling the audio signal of different-format, need to select different chips to realize;
If 2 signals that receive are simulated audio signals, so just need not again it to be done any conversion.
Simulated audio signal after the conversion is operated by user instruction, if being simple sound, user instruction switches, need not the complex programmable chip so, only need the simple circuit of selecting just can realize, otherwise just need by being programmed, it realize with high-speed dsp or dedicated voice editing and processing device.
As shown in Figure 2, the input signal of described audio/video signal processing unit 206 is at least a kind of, but often be multiple, its input signal interface comprises AV terminal, S terminal, aberration terminal, RGB terminal, VGA terminal and SVGA terminal, digital video D terminal, IEEE 1394 terminals, and other self-defined terminal.
Described display processing unit 204 sends image or the vision signal of handling well to display screen 203 by display interface, described display interface and display screen 203 signal input interfaces coupling.
Described display screen 203 can adopt general TFT LCDs or other display device, also can use touch-screen, because display screen 203 kinds and interface are various, the definition of no unified interface, therefore when selecting different display screens 203, require display processing unit 204 and display screen 203 couplings, general as adopting, use simple 8 bit digital FTF display screens.
Described audio frequency and video/image coding and decoding processor 205 adopts the complex programmable chip, records, preserves processing by the independent audio-video signal that obtains after its programming is handled audio/video signal processing unit 206.
Described audio/video signal processing unit 206 is handled from the different-format audio/video signal of outside input, handle the audio/video signal of different-format and must use different chips instead with respective handling ability, thereby obtain separate but synchronous Voice ﹠ Video signal, realize that the audio/video aspect is all multi-functional, comprise broadcast, record, modification and audio frequency mixing, video show simultaneously.
The audio-video signal that described audio/video signal processing unit 206 receives from the different-format of outside, when the audio-video signal of input different-format, the interface of described audio/video signal processing unit 206 is also different thereupon.For handling the audio/video signal of the different-format of being imported, need to adopt the chip that possesses disposal ability, could correctly isolate like this and show required separate but synchronous Voice ﹠ Video signal, when many groups audio-video signal is imported, described audio/video signal processing unit 206 must possess the chip of each tool disposal ability of multi-disc simultaneously, could correctly isolate the separate synchronous again Voice ﹠ Video signal of many groups.
Audio-video signal all has the standard agreement and the definition of country or international organization at present, except as the minority interfaces such as IEEE1394, the Voice ﹠ Video of audio-video signal of input own is exactly independent, synchronous input, so need not when handling these audio-video signals it is carried out lock out operation, interface for IEEE 1,394 one classes, itself also has standard agreement, in this standard agreement, all detailed standard definition can be arranged to the audio frequency and video lock out operation, and the special chip support is all arranged, the present invention can adopt the chip TSB12LV23 or the TSB41LV03 of TI company when handling the audio-video signal of IEEE 1394 interfaces input.
For the different-format audio-video signal of being imported, need adopt dissimilar chips according to the different-format of signal, by programming to these chips, just can realize respective handling to input signal, for example by traditional AV interface, described DPF can dock with top box of digital machine, realizes the demonstration of television content, can record television content simultaneously; Utilize traditional AV interface, described DPF can also and camera butt joint, realize that real-time on-site supervision and field condition record.
Above-mentioned implementation procedure is a preferential implementation procedure of the present invention, and common variation and replacement that those skilled in the art carries out on basis of the present invention are included within protection scope of the present invention.
Claims (10)
1, a kind of DPF of handling multiple audio/video input signals, comprise power subsystem (201), display screen (203), built-in or external memory cell (202), audio frequency and video/image coding and decoding processor (205) and loud speaker (209), the data that described audio frequency and video/image coding and decoding processor (205) will be stored in the built-in or external memory cell (202) are carried out decoding processing, it is characterized in that:
Also comprise display processing unit (204), sound processing unit (208), audio/video signal processing unit (206) and operation command processor (207); Described operation command processor (207) is used for the interactive instruction of process user input; Described audio/video signal processing unit (206) will go out separate synchronous again Voice ﹠ Video signal from the audio/video Signal Separation of outside input, and isolated audio signal is sent to sound processing unit (208) handles, export loud speaker (209) then to, isolated vision signal is sent to display processing unit (204) handles, export display screen (203) at last to and show.
2, the DPF of handling multiple audio/video input signals as claimed in claim 1 is characterized in that:
Described operation command processor (207) adopts MCU chip able to programme to realize, is used for user's interactive instruction is converted into the manipulation internal instruction code.
3, the DPF of handling multiple audio/video input signals as claimed in claim 1 is characterized in that:
Display processing unit (204) is used for handling image or the vision signal that sends from audio frequency and video/image coding and decoding processor (205) or audio/video signal processing unit (206), and the built-in command code that sends according to operation command processor (207) to received image or vision signal switch, mixed processing, described vision signal comprises analog video signal and digital video signal.
4, the DPF of handling multiple audio/video input signals as claimed in claim 1 is characterized in that:
Sound processing unit (208) is used for handling sound or the audio signal that sends from audio frequency and video/image coding and decoding processor (205) or audio/video signal processing unit (206), and the built-in command code that sends according to operation command processor (207) to received sound or audio signal switch, mixed processing, described audio signal comprises simulated audio signal and digital audio and video signals.
5, as claim 1 or the 3 described DPFs of handling multiple audio/video input signals, it is characterized in that:
Described display processing unit (204) adopts the complex programmable chip, by it is programmed the analog video signal of input is converted to digital signal, and the digital video signal after the conversion is handled.
6, as claim 1 or the 4 described DPFs of handling multiple audio/video input signals, it is characterized in that:
Sound processing unit (208) adopts the complex programmable chip, by it is programmed the digital audio and video signals of input is converted to simulated audio signal, and the simulated audio signal after the conversion is handled.
7, the DPF of handling multiple audio/video input signals as claimed in claim 1 is characterized in that:
The input signal of described audio/video signal processing unit (206) is at least a kind of, but often be multiple, its input signal interface comprises AV terminal, S terminal, aberration terminal, RGB terminal, VGA terminal and SVGA terminal, digital video D terminal, IEEE 1394 terminals, and other self-defined terminal.
8, the DPF of handling multiple audio/video input signals as claimed in claim 1 is characterized in that:
Described display processing unit (204) sends image or the vision signal of handling well to display screen (203) by display interface, and described display interface and display screen (203) video signal input interface is complementary.
9, the DPF of handling multiple audio/video input signals as claimed in claim 1, it is characterized in that described audio frequency and video/image coding and decoding processor (205) adopts the complex programmable chip, processing is recorded, preserved to the independent audio-video signal that obtains after by programming audio/video signal processing unit (206) being handled.
10, the DPF of handling multiple audio/video input signals as claimed in claim 1 is characterized in that:
Described audio/video signal processing unit (206) is handled from the different-format audio/video signal of outside input, handle the audio/video signal of different-format and must use different chips instead with respective handling ability, thereby obtain separate but synchronous Voice ﹠ Video signal, realize that the audio/video aspect is all multi-functional, comprise broadcast, record, modification and audio frequency mixing, video show simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100676841A CN101600041A (en) | 2008-06-02 | 2008-06-02 | Can handle the DPF of multiple audio/video input signals |
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| CNA2008100676841A CN101600041A (en) | 2008-06-02 | 2008-06-02 | Can handle the DPF of multiple audio/video input signals |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012034402A1 (en) * | 2010-09-17 | 2012-03-22 | 深圳金亚太科技有限公司 | Audio and video collection method |
| CN103123781A (en) * | 2012-11-26 | 2013-05-29 | 深圳市显盈电子科技有限公司 | Display port signal converter |
| CN104506932A (en) * | 2014-12-04 | 2015-04-08 | 青岛歌尔声学科技有限公司 | Audio transmission control system and control method |
| CN112055129A (en) * | 2020-08-26 | 2020-12-08 | 北京博睿维讯科技有限公司 | Video signal processing method, device, system and storage medium |
-
2008
- 2008-06-02 CN CNA2008100676841A patent/CN101600041A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012034402A1 (en) * | 2010-09-17 | 2012-03-22 | 深圳金亚太科技有限公司 | Audio and video collection method |
| CN103123781A (en) * | 2012-11-26 | 2013-05-29 | 深圳市显盈电子科技有限公司 | Display port signal converter |
| CN103123781B (en) * | 2012-11-26 | 2015-12-02 | 深圳市显盈电子科技有限公司 | Display interface signals converter |
| CN104506932A (en) * | 2014-12-04 | 2015-04-08 | 青岛歌尔声学科技有限公司 | Audio transmission control system and control method |
| CN104506932B (en) * | 2014-12-04 | 2018-02-16 | 青岛歌尔声学科技有限公司 | A kind of audio transmission control system and control method |
| CN112055129A (en) * | 2020-08-26 | 2020-12-08 | 北京博睿维讯科技有限公司 | Video signal processing method, device, system and storage medium |
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Open date: 20091209 |