CN2935669Y - TV set with USB interface - Google Patents
TV set with USB interface Download PDFInfo
- Publication number
- CN2935669Y CN2935669Y CNU2006200877423U CN200620087742U CN2935669Y CN 2935669 Y CN2935669 Y CN 2935669Y CN U2006200877423 U CNU2006200877423 U CN U2006200877423U CN 200620087742 U CN200620087742 U CN 200620087742U CN 2935669 Y CN2935669 Y CN 2935669Y
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- CN
- China
- Prior art keywords
- usb
- television set
- chip
- usb interface
- streaming media
- 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
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Abstract
The utility model discloses a TV set having a USB interface, which comprises a USB interface and a TV decoding board; wherein, the USB interface is connected to the USB bus port of a USB stream media decoding treatment chip through a USB bus; a CPU, an audio treatment module and a video treatment module are inserted inside the USB stream media decoding treatment chip, the audio treatment module outputs the received audio data after decoding to a Digital-Analog Converter for the conversion of the digital signal to the analog signal and further outputs to the audio board on the television to drive the speaker to output the sound; the video treatment module outputs the digital video signal after decoding the received video data to the TV decoding board of the TV set, thereby driving the monitor to output the image. Adopting the treatment chip having a USB interface function as the main controller, the TV set of the utility model effectively simplifies the hardware circuit structure, reduces the cost of the TV set and improves the market competence of the television product.
Description
Technical field
The utility model relates to a kind of improvement of TV set circuit, specifically, relates to a kind of circuit engineering of setting up USB interface on television set.
Background technology
In the last few years, along with rapid development of multimedia, all in development rapidly, its function was also increasing for various display terminals.The development of USB interface technology is more rapid, and the equipment that has USB interface is also increasing, for example, MP3, USB flash disk and digital camera etc., thus the file that a lot of MP3, JPEG etc. comprise audio frequency, video information produced.Yet, under a lot of situations we all be these document copyings in computer, the digital processing technology that utilizes computer reads, decompresses, can play its abundant content of appreciation after processings such as decoding above-mentioned file.But such broadcast is subjected to the influence of computer display size and the restriction of sound quality, has had a strong impact on people's appreciation effect.Yet for television set, particularly the large screen plasma digital television because it has the sound effect of the image quality and the high-quality of high definition, can satisfy people's appreciation demand fully.Therefore, if can on existing television set, set up USB interface, it is communicated with MP3, digital camera or computer easily, and then play the MP3 music by television set, the JPEG picture, not only can satisfy people's appreciation demand, and also be undoubtedly, help improving the market competitiveness of tv product the further expanding of TV additional function.
At present, be implemented in the method for setting up USB interface on the conventional television have a variety of, still, its circuit structure is all comparatively complicated, comprise parts such as USB interface, USB controller, encoding and decoding main control chip, circuit cost is higher, is unfavorable for promoting the use of in household appliances.
Summary of the invention
The utility model is in order to solve the TV set circuit complex structure of supporting USB interface in the prior art, the problem that cost is high, a kind of novel usb circuit that is used for television set is provided, have the process chip of usb function as master controller by use, receive sound, video data in the peripheral hardware, and the data that receive are decoded and handled, effectively simplified hardware circuit, reduce television cost, improved the market competitiveness of tv product.
For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of television set that has USB interface comprises USB interface and TV decoding deck, and described USB interface connects the usb bus port of a USB Streaming Media decoding processing chip by usb bus; Described USB Streaming Media decoding processing chip is embedded with CPU, audio processing modules and video processing module, after audio processing modules is decoded the voice data that receives, export to digital to analog converter and carry out the conversion of digital signal, and then output to the audio board driving loud speaker output sound of television set to analog signal; After video processing module was decoded to the video data that receives, the output digital video signal was to the TV decoding deck of television set, and then the driving display output image.
As further qualification to technique scheme, it is the integrated chip realization of AT76C113 that described USB Streaming Media decoding processing chip adopts a model, its audio processing modules is decoded to the voice data of the MP3 format that receives, connects wherein one road input that switches chip by described digital to analog converter; Another road input of described switching chip receives the audio signal from television set AV interface, finishes the selection output of two paths of signals under the effect of television set master controller.
Further qualification again as to technique scheme is embedded with serial communication modular and memory interface module in described USB Streaming Media decoding processing chip AT76C113, described memory interface module connects FLASH and SDRAM by bus; Serial communication modular connects outer computer by serial line interface, the download system software upgrade procedure, and the data among the FLASH are upgraded.
As the further qualification again to technique scheme, in described USB Streaming Media decoding processing chip AT76C113, the output of video processing module is by the TV decoding deck of one 26 needle interfaces connection television set, the vision signal behind the output decoder; The remote control command that the television set master controller receives is input to the remote signal receiving terminal of USB Streaming Media decoding processing chip AT76C113 through described 26 needle interfaces, the mode of control chart picture output.
Compared with prior art, advantage of the present utility model and good effect are: the utility model is by adding USB Streaming Media decoding processing chip in TV set circuit, by the data communication between simple circuit configuration realization television set and the external USB equipment, the user can access the actions menu of television set easily by TV remote controller, and then select like a cork to browse the JPEG picture of storing in the USB device, perhaps appreciate the MP3 music.The television set that has USB interface of the present utility model is supported multiple USB device, for example: the card reader of USB flash disk, digital camera storage card, portable MP3 player etc.Television set has been expanded the mode of TV entertainment to the support of Streaming Media, the user can be under the situation of not using computer, utilizing the loudspeaker of the large high-definition screen curtain of television set and high-quality to realize the entertainment way that can only realize on computers originally, is to once innovation and breakthrough on the conventional television function.
Description of drawings
Fig. 1 is the schematic diagram of usb circuit in the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done explanation in further detail.
Television set of the present utility model has usb function, supports USB device such as USB flash disk, card reader, can realize the direct demonstration of jpeg format picture and play-overing of MP3 format music.USB device is directly inserted the USB interface of television set, operate by TV remote controller, read out JPEG and mp3 file tabulation in the USB device, picture and MP3 music that the user just can freely select oneself to like are play.Wherein, picture playing can be selected played in full screen and two kinds of patterns of window preview.Television set offers a close friend's of user operation interface, is convenient to the user and manipulates.
Fig. 1 is a usb circuit schematic diagram of the present utility model, is that the USB Streaming Media decoding processing chip IC 1 of AT76C113 cooperates the original circuit of television set to realize the support of convection current media interface by model.Wherein, external USB equipment connects the usb bus port USB HOST of USB Streaming Media decoding processing chip IC 1 by USB interface XS1 through usb bus.Described USB Streaming Media decoding processing chip IC 1 is embedded with CPU, audio processing modules, video processing module, serial communication modular and memory interface module.Audio processing modules is exported to digital to analog converter IC2 and is carried out the conversion of digital signal to analog signal after the voice data of the MP3 format that receives is decoded, and then connects wherein one road input that switches chip IC 3.Another road input of described switching chip IC 3 receives the audio signal from television set AV2 interface, finishes the selection output of two-way audio signal under the effect of television set master controller.Wherein, insert by interface XS3 from the sound of television set AV2 interface, video data, vision signal is directly by interface XS2 output.Select the audio signal of output to output to the Audio Processing plate of television set through switching chip IC 3, and then drive the loud speaker output sound by interface XS2.
After the video processing module of USB Streaming Media decoding processing chip IC 1 was decoded to the video data that receives, the output digital video signal was by the TV decoding deck of 26 needle interface XS4 connection television set, and then the pictorial information in the driving display output USB device.The television set master controller is input to the remote signal receiving terminal of USB Streaming Media decoding processing chip IC 1, the mode of control picture output with the remote control command that receives through described 26 needle interface XS4.
Memory interface module in the USB Streaming Media decoding processing chip IC 1 connects FLASH and SDRAM by bus.Wherein, FLASH storage system control program, SDRAM stores middle data.Serial communication modular connects outer computer by serial line interface, the download system software upgrade procedure, and the data among the FLASH are upgraded.In addition, the system software upgrading program also can write in the USB flash disk, communicates by USB interface and USB Streaming Media decoding processing chip IC 1, when USB Streaming Media decoding processing chip IC 1 has retrieved upgrade file, download described upgrade file, the system program among the FLASH is upgraded.
Specialized designs has the quick button of a USB on TV remote controller, when television set receives the user when triggering the command signal of the quick button of described USB, switch to the XS4 interface by software control TV images passage, display just can show the digital format images information from USB device.Simultaneously, sound channel also switches to the voice-grade channel of USB by software control, and at this moment, television set just can be play JPEG picture and the MP3 music that the user selects.
The utility model is by adopting above-mentioned simple circuit configuration, make existing TV set with the function of external USB devices communicating, expanded the additional function of television set with lower cost, improved the market competitiveness of tv product.Certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present utility model also should belong to protection range of the present utility model.
Claims (5)
1. a television set that has USB interface comprises USB interface and TV decoding deck, it is characterized in that: described USB interface connects the usb bus port of a USB Streaming Media decoding processing chip by usb bus; Described USB Streaming Media decoding processing chip is embedded with CPU, audio processing modules and video processing module, after audio processing modules is decoded the voice data that receives, export to digital to analog converter and carry out the conversion of digital signal, and then output to the audio board driving loud speaker output sound of television set to analog signal; After video processing module was decoded to the video data that receives, the output digital video signal was to the TV decoding deck of television set, and then the driving display output image.
2. the television set that has USB interface according to claim 1, it is characterized in that: the audio processing modules in the described USB Streaming Media decoding processing chip is decoded to the voice data of the MP3 format that receives, connects wherein one road input that switches chip by described digital to analog converter; Another road input of described switching chip receives the audio signal from television set AV interface, finishes the selection output of two paths of signals under the effect of television set master controller.
3. the television set that has USB interface according to claim 2, it is characterized in that: be embedded with serial communication modular and memory interface module in described USB Streaming Media decoding processing chip, described memory interface module connects FLASH and SDRAM by bus; Serial communication modular connects outer computer by serial line interface, the download system software upgrade procedure, and the data among the FLASH are upgraded.
4. the television set that has USB interface according to claim 3, it is characterized in that: in described USB Streaming Media decoding processing chip, the output of video processing module is by the TV decoding deck of one 26 needle interfaces connection television set, the vision signal behind the output decoder; The remote control command that the television set master controller receives is input to the remote signal receiving terminal of USB Streaming Media decoding processing chip through described 26 needle interfaces.
5. the television set that has USB interface according to claim 4 is characterized in that: described USB Streaming Media decoding processing chip is that a model is the integrated chip of AT76C113.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200877423U CN2935669Y (en) | 2006-08-07 | 2006-08-07 | TV set with USB interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200877423U CN2935669Y (en) | 2006-08-07 | 2006-08-07 | TV set with USB interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2935669Y true CN2935669Y (en) | 2007-08-15 |
Family
ID=38352351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200877423U Expired - Fee Related CN2935669Y (en) | 2006-08-07 | 2006-08-07 | TV set with USB interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2935669Y (en) |
-
2006
- 2006-08-07 CN CNU2006200877423U patent/CN2935669Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070815 Termination date: 20120807 |