Wireless audio-video conversion transmitting-receiving system and method thereof

A technology for audio and video conversion, transmission and reception, applied in transmission systems, signal transmission systems, non-electrical signal transmission systems, etc.

Inactive Publication Date: 2005-04-20
SHANGHAI FULLBAND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage is that among the users of TV set-top boxes, the average family can only install one set-top box for use by one TV set, but modern families usually have two or more than two TV sets, so it is impossible for different family members to use different TV sets. The TV needs to watch the same or different TV programs through a TV set-top box at the same time

Method used

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  • Wireless audio-video conversion transmitting-receiving system and method thereof
  • Wireless audio-video conversion transmitting-receiving system and method thereof
  • Wireless audio-video conversion transmitting-receiving system and method thereof

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Embodiment Construction

[0011] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0012] like Figure 1 to Figure 3 Shown, the wireless audio-video conversion transmitting and receiving system of the present invention, it comprises:

[0013] A video scan conversion unit (Video Scan Convertor) 1, the video scan conversion unit 1 converts the digital video signal of a device with video and audio output such as a PC into a device that can run on a device with video and audio input such as a TV analog video signal;

[0014] An audio-video conversion transmission unit 2, the audio-video conversion transmission unit 2 modulates the audio signal of a device with video and audio output such as a PC and the above-mentioned converted analog video signal to have 4 frequency bands through frequency modulation (FM) modulation (2.414GHz, 2.432GHz, 2.450GHz, 2.468GHz) on the 2.4GHz carrier, use the wireless direct sequence spread spec...

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Abstract

This invention discloses a wireless audio /video transforming emit and receive system and a method for converting video /audio signals and infrared remote signals on PC devices with audio/video output to their signals and related control signals operated on TV devices with video/audio input, including: a video scan conversion unit and a step, an audio/video conversion transferring unit and a step, an infrared remote control signal conversion and transferring unit and a step, an audio/video signal receive unit and step, an infrared remote control signal receiving unit and step, mainly utilizing a video scanning conversion unit, 2.4 GHz antenna direct sequence expansion spectrum transmission technology, 433 MHz RF wireless infrared remote signal transmission technology and mono-chip processor and a supply module to realize the wireless connection.

Description

Technical field [0001] The invention relates to an audio-video conversion transmitting and receiving system and its method, in particular to a wireless audio-video converting transmitting and receiving system and its method, belonging to the technical field of multimedia household or public electrical appliances under the broadband network environment. The present invention is to solve the equipment with video and audio output such as PC, VCD / DVD player, video camera, satellite receiver, set-top box and the equipment with video and audio input, such as television (TV), video recorder, video projection The wireless network interconnection among devices such as instruments, computer TV receivers, speakers, etc. provides stable, reliable, convenient and diverse technical support. Background technique [0002] With the gradual maturity of broadband network technology, especially the huge amount of information provided by broadband network and the sharing of resources, the user b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08C23/04H04B1/02H04B1/06H04L12/28
Inventor 张晓明罗燕京
Owner SHANGHAI FULLBAND TECH
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