Audio and video peripheral extension apparatus and method of video conference system

Abstract

The invention relates to an audio and video peripheral extension apparatus and method of a video conference system. Sound collection is performed by an audio collection device, coding compression is performed on the collected sound on the audio collection device, image collection is performed through the video collection device, coding compression is performed on a collected image on the audio collection device, the sound and the image subject to the coding compression are transmitted to a coding and decoding terminal through a network cable, the coding and decoding terminal transmits the sound and the image to a display device and an external network after performing decoding and clock synchronization processing, so that the function of the video conference system is realized. The networking mode of the audio and video peripheral extension apparatus provided by the invention is flexible, configured can be completely performed according to the required number of users, the coding and decoding terminal does not need to reserve a dedicated video and audio interface, and the flexible extension of an audio and video peripheral can be performed only needing one or two standard network ports.

Description

technical field [0001] The invention relates to the field of video conferencing systems, in particular to an audio and video peripheral expansion device and method for a video conferencing system. Background technique [0002] Video conferencing system, also known as video conferencing system, refers to two or more individuals or groups in different places, through transmission lines and multimedia equipment, the sound, video and documents are transmitted to each other to achieve real-time and interactive communication, in order to achieve System equipment for conference purposes. The use of video conferencing is a bit like a phone call. In addition to seeing the person you are talking with and communicating in words, you can also see their expressions and actions, so that people in different places can communicate as if they are in the same room. The codec terminal is the host of the video conferencing system. It mainly has the functions of encoding and decoding images and...

AI Technical Summary

Problems solved by technology

The disadvantages of this method: First, the transmission distance of unencoded video or audio signals is limited, generally within 10 meters, which cannot meet the needs of large conference rooms, and professional audio and video cables are expensive; second, they can be connected The number of cameras or pickups (hereinafter collectively referred to as audio and video peripherals) is limited by the number of existing interfaces of the codec terminal

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