CN200956617Y

CN200956617Y - Set top box

Info

Publication number: CN200956617Y
Application number: CNU2006200648937U
Authority: CN
Inventors: 邓振强
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-09-26
Filing date: 2006-09-26
Publication date: 2007-10-03
Anticipated expiration: 2016-09-26

Abstract

A set top box of the utility model has a main circuit controlled by a processing unit. The main circuit comprises a network interface module which is characterized in that the processing unit is connected with a RF radio frequency transmitting module communicating with a RF radio frequency receiving module on the domestic appliance and the processing unit receives a control command transmitted by the RF radio frequency transmitting module from the network interface module and transmits the command by the RF radio frequency transmitting module. As the processing unit is connected with a RF radio frequency transmitting module, the set top box of the utility model is adopted to send the control command to the network interface module, the processing unit receives the control command from the network interface module and transmits the command by the RF radio frequency transmitting module and the RF radio frequency receiving module on the domestic appliance changes the state of the domestic appliance according to the control command after receiving the control command which implements the purpose of utilizing the set top box to control the work of the domestic appliance.

Description

Set-top box

Technical field

The utility model relates to the set-top box that is used for receiving digital television signal.

Background technology

Country is wideling popularize Digital Television at present.Existing simulated television is receiving digital signals directly, and the digital television signal that needs the machine for casing-in or applying cover to book top box that TV station is provided converts anolog TV signals to and could be play by simulated television.Existing set-top box by Network Interface Module receiving digital television signal from the TV signal transmission line, is decoded and D/A switch again, and output analog video signal and simulated audio signal are play for simulated television.Set-top box carries Infrared remote controller, and remote controller sends remote signal to Network Interface Module.The main circuit of set-top box is controlled by processing unit.As the important window that family is connected with external network, set-top box can only be handled the signal relevant with Digital Television, is confined to the hardware device of simple function, can't realize the multiple functions such as control to other household electrical appliances.

The utility model content

The purpose of this utility model is to provide the set-top box that can be used for controlling household electric appliance operation.

Set-top box of the present utility model, its main circuit is controlled by processing unit, main circuit comprises Network Interface Module, it is characterized in that, processing unit connects the RF radiofrequency emitting module that can communicate by letter with the RF Receiver Module on the household electrical appliance, processing unit receives control command from Network Interface Module, is launched by the RF radiofrequency emitting module.

Because processing unit connects the RF radiofrequency emitting module, adopts after the set-top box of the present utility model, the user can be to the Network Interface Module transmitting control commands, and processing unit receives control command from Network Interface Module, is launched by the RF radiofrequency emitting module.After RF Receiver Module on the household electrical appliance is received control command, change the state of household electrical appliance according to control command.This has just realized utilizing the purpose of set-top box control household electric appliance operation.

Description of drawings

Fig. 1 is the circuit structure block diagram of the utility model set-top box.

Embodiment

As Fig. 1, existing set-top box comprises Network Interface Module, demodulation multiplexer, Conditional Access Module, Video Decoder, video post-processor, audio decoder, audio post-processor, processing unit, memory and peripheral interface.Network Interface Module connects demodulation multiplexer, demodulation multiplexer condition of contact receiver module, and Conditional Access Module connects Video Decoder, and Video Decoder connects the video post-processor that is used for the reduction and simulation vision signal; Conditional Access Module also connects audio decoder, and audio decoder connects the audio post-processor that is used for the reduction and simulation audio signal.The Network Interface Module receiving digital television signal is finished channel demodulation and channel-decoding function, sends to comprise and looks audio frequency and other data information transmission stream.Generally comprise a plurality of audio/video flows and some data messages in the transmission stream, demodulation multiplexer is used for distinguishing different programs, extracts corresponding audio/video flow and data flow.For pay TV, Conditional Access Module is also implemented descrambling to audio/video flow, and adopts the smart card that contains identification user and memory function, and the assurance validated user is normally watched.Video Decoder is finished the decompression to audio-video signal, and video post-processor is finished the video d/a conversion, restores analog video signal, shows high quality graphic on simulated television; Audio decoder is finished the decompression to audio-video signal, and audio post-processor is finished the video d/a conversion, restores simulated audio signal, and the multichannel sterego program is provided.Embedded type CPU is as processing unit operating software system, and each hardware module is controlled.Memory is used for storing data.Interface circuit provides abundant external interface, comprises USB (universal serial bus) USB, Ethernet interface and RS232, simulation, digital video-audio interface, data-interface etc.

The user can be with PC by the Internet to the Network Interface Module transmitting control commands, also the remote controller that can carry with set-top box is to the Network Interface Module transmitting control commands.

Processing unit receives control command from Network Interface Module, is launched by the RF radiofrequency emitting module.

After RF Receiver Module on the household electrical appliance (for example electric light, microwave Shanghai, air-conditioning etc.) is received control command, change the state of household electrical appliance according to control command.

The RF radiofrequency emitting module of set-top box and the RF Receiver Module on the household electrical appliance all can be made the RF radio-frequency (RF) receiving and transmission module.After the state of household electrical appliance changes, RF radio-frequency (RF) receiving and transmission module on the household electrical appliance sends the state information of household electrical appliance to the RF of set-top box radio-frequency (RF) receiving and transmission module, processing unit is from RF radio-frequency (RF) receiving and transmission module receiving status information, send by the PC or the remote controller of Network Interface Module, by the user terminal displays state information to the user.

The user also can be with other user terminals such as mobile phones to the set-top box transmitting control commands.

Claims

1. set-top box, its main circuit is controlled by processing unit, main circuit comprises Network Interface Module, it is characterized in that, processing unit connects the RF radiofrequency emitting module that can communicate by letter with the RF Receiver Module on the household electrical appliance, processing unit receives control command from Network Interface Module, is launched by the RF radiofrequency emitting module.

2. according to the set-top box of claim 1, it is characterized in that the RF radiofrequency emitting module that processing unit connected is the RF radio-frequency (RF) receiving and transmission module that can communicate by letter with the RF radio-frequency (RF) receiving and transmission module on the household electrical appliance.

3. according to the set-top box of claim 1, it is characterized in that Network Interface Module connects demodulation multiplexer, demodulation multiplexer condition of contact receiver module, Conditional Access Module connects Video Decoder, and Video Decoder connects the video post-processor that is used for the reduction and simulation vision signal; Conditional Access Module also connects audio decoder, and audio decoder connects the audio post-processor that is used for the reduction and simulation audio signal.

4. according to the set-top box of claim 3, it is characterized in that embedded type CPU is as processing unit operating software system, and each hardware module is controlled processing unit connected storage and peripheral interface.

5. according to the set-top box of claim 4, it is characterized in that peripheral interface comprises that USB (universal serial bus) USB, Ethernet interface and RS232, simulation look audio interface or digital video-audio interface.