CN201032734Y

CN201032734Y - Multifunctional set up box

Info

Publication number: CN201032734Y
Application number: CNU200720078626XU
Authority: CN
Inventors: 唐食明
Original assignee: Sichuan Changhong Electric Co Ltd
Current assignee: Sichuan Changhong Electric Co Ltd
Priority date: 2007-02-26
Filing date: 2007-02-26
Publication date: 2008-03-05
Anticipated expiration: 2017-02-26

Abstract

The utility model relates to a multi-function set-top box, which in particular relates to a set-top box with a karaoke function. Aiming to meet the requirements of the consumer on the various services of the set-top box, the utility model discloses a multi-function set-top box with a network karaoke function. The technical proposal is that the utility model comprises a control processing unit, a network controller, a video output unit and an audio processing unit. The network controller, the video output unit and the audio processing unit are connected with the control processing unit respectively, and the utility model comprises an audio band which is connected with the audio processing unit. The utility model provides a multi-function set-top box with network karaoke function, and the requirements of consumer on the various value-added services of the set-top box are satisfied.

Description

Multifunctional set top box

Technical field

The utility model relates to set-top box, particularly a kind of set-top box with Kara OK function.

Background technology

At present set-top box generally adopt MPEG4, H.264, the decoding algorithm of standards such as AVS, VC-1, the following low code stream audio frequency and video of 2Mbps of decoding, the vision signal of output common DVD image quality single-definition image quality (being equivalent to).(SoC is the integrated circuit of being developed fast owing to widely-used pre-customized module I P (Intellectual Property) on a chip to the SoC chip, and the SoC chip is commonly referred to as system level chip.) begun to be applied in the set-top box design, make the more perfect functions of set-top box.But along with development of technology, the consumer requires to improve to the diversity of the business tine that set-top box can provide, and this just requires set-top box to have the function of some broad band value-added services.

The utility model content

Technical problem to be solved in the utility model is that a kind of multifunctional set top box with network karaoke function is provided.

The technical scheme that the utility model solve the technical problem employing is that multifunctional set top box comprises controlled processing unit, network controller, video output unit, audio treatment unit; Network controller, video output unit and audio treatment unit link to each other with controlled processing unit respectively, also comprise the microphone input, and the microphone input links to each other with audio treatment unit.

The beneficial effects of the utility model are, a kind of multifunctional set top box with network karaoke function is provided, and satisfy the consumer to the multifarious demand of the value-added service of set-top box.

Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail.

Description of drawings

Fig. 1 is a circuit diagram of the present utility model.

Embodiment

Multifunctional set top box of the present utility model, comprise controlled processing unit, by main control chip, program storage and dynamic random access memory are formed, program storage links to each other with main control chip respectively with dynamic random access memory, controlled processing unit is used to finish all control of set-top box and processing, its main control chip adopts system-level (SoC) chip, this SoC chip architecture adopts MIPS+DSP or ARM+DSP, realize the MPEG4 of single-definition, VC-1, AVS, H.264 wait the decoding video stream of standard, program storage is used for the resident software program, and dynamic random access memory is used to provide set-top box software operating all temporal datas; Video output unit links to each other with main control chip, is used for the video data that main control chip is sent here is weaved into composite video output, S-VHS output and the component vide output of simulation, is sent to television set and shows; Audio treatment unit, comprise the output of audio coding/decoding device and analogue audio frequency, analogue audio frequency output links to each other with main control chip by the audio coding/decoding device, and after the audio digital signals that audio treatment unit is used for that main control chip is sent here was changed through D/A, the output analogue audio frequency was stereo; The microphone input links to each other with the audio coding/decoding device, and the microphone input is used to import simulated audio signal and is sent to the audio coding/decoding device, through the A/D conversion, is input to main control chip and does further audio compression; The video input unit, comprise video input and Video Decoder, the video input links to each other with main control chip by Video Decoder, the video input unit is used for the first-class vision signal of shooting is input to Video Decoder, through the D/A conversion, solve video data, be input to main control chip and do further video compression; Network controller, link to each other with main control chip, network controller is used to realize the exchanging visit of network, not only is used to realize the program request Web TV, receive other network media etc., be used to also realize that the audio-video code stream after compression with microphone and video input uploads to wide band network server; The infrared ray receiving processor links to each other with main control chip, and the infrared ray receiving processor is used to receive the control signal that Infrared remote controller is sent, and is sent to the SoC chip after treatment and does further processing; Standard mouse and keyboard link to each other with main control chip respectively, and standard mouse and keyboard are used for the operation control to set-top box.

Embodiment

Referring to Fig. 1, the model of SoC chip is PNX8550, the chip model of program storage is S29G256N, the chip model of network controller is DP83816, the chip model of the video encoder that video output unit relates to is PNX8510, the chip model of audio coding/decoding device is WM8731L, and the chip model of the Video Decoder that the video input unit relates to is SAA7117, the various power supplys that power supply will provide whole system to need.

User's program request Web TV workflow as follows: the Streaming Media that the SoC chip will be sent here from network is through unpacking, solve the audio program streams of coding standards such as the video program stream of coding standards such as VC-1 and MP3, and pass through software at the SoC chip internal, solve the video data that meets the ITU656 standard, data are sent to video encoder, weave into composite video output, S-VHS output and the component vide output of simulation, be sent to television set and show; Simultaneously, the audio program streams decompress(ion) with coding standards such as MP3 solves audio digital signals, and this digital signal is sent to the audio coding/decoding device, and through the D/A conversion, the output analogue audio frequency is stereo, is sent to equipment power amplifications such as television set.By Infrared remote controller, standard mouse and keyboard or this machine button are operated, and realize broadcast, time-out, F.F., rewind down, location and select program to add/subtract operations such as function.

Workflow when the user carries out the network karaoke performance is as follows: the simulated audio signal that the microphone input will be imported is sent to the audio coding/decoding device, through the A/D conversion, be input to the SoC chip and do further audio compression, coding standards such as boil down to MP3 format, the video input first-class vision signal of will making a video recording is input to Video Decoder, through the D/A conversion, solve the video data that meets the ITU656 standard, be input to the SoC chip and do further video compression, coding standards such as boil down to MPEG4, the audio-video code stream after will compressing then uploads to wide band network server by network controller.By remote controller, standard mouse and keyboard or this machine button are operated, and realize broadcast, time-out, F.F., rewind down, location and select program to add/subtract operations such as function.

Claims

1. multifunctional set top box comprises controlled processing unit, network controller, video output unit, audio treatment unit; Described network controller, video output unit and audio treatment unit link to each other with controlled processing unit respectively, it is characterized in that, also comprise the microphone input, and described microphone input links to each other with audio treatment unit.

2. multifunctional set top box as claimed in claim 1 is characterized in that, also comprises the video input unit, and described video input unit links to each other with controlled processing unit.

3. multifunctional set top box as claimed in claim 2 is characterized in that, described video input unit comprises video input and Video Decoder, and described video input links to each other with controlled processing unit by Video Decoder.

4. multifunctional set top box as claimed in claim 1, it is characterized in that, described audio treatment unit comprises audio coding/decoding device and analogue audio frequency output, and analogue audio frequency output links to each other with controlled processing unit by the audio coding/decoding device, and the microphone input links to each other with the audio coding/decoding device.

5. multifunctional set top box as claimed in claim 1 is characterized in that described controlled processing unit comprises main control chip, program storage and dynamic random access memory, and described program storage links to each other with main control chip respectively with dynamic random access memory.

6. multifunctional set top box as claimed in claim 5 is characterized in that, described main control chip is a system level chip.

7. multifunctional set top box as claimed in claim 1 is characterized in that, also comprises the infra red treatment device, and described infra red treatment device links to each other with controlled processing unit.

8. multifunctional set top box as claimed in claim 1 is characterized in that, also comprises mouse and keyboard, and described mouse links to each other with controlled processing unit with keyboard.