High-definition video multi-service optical transceiver

Abstract

The invention discloses a high-definition video multi-service optical transceiver. A time division multiplexing technology is adopted, and a plurality of paths of high-definition serial digital interface (HDSDI) high-definition videos and a plurality of services are transmitted through a single fiber. The optical transmitter comprises a transmitter and a receiver. Each of the transmitter and the receiver comprises circuits such as a video processor, a memory, a clock recovery stabilization circuit and a singlechip. At least two paths of HDSDI high-definition video signal interfaces are arranged in each video processor. The transmitter is connected with the receiver through a core fiber. The transmitter performs locking and clock recovery on a plurality of paths of high-definition video code streams, extracts related video data and related control signals, accesses effective videos through the memory to realize frame synchronization, multiplexes synchronized signals such as effective high-definition video signals, analogue video signals, audio signals, data signals, network signals and telephone signals, and transmits the synchronized signals in form of optical signal at high speed. The receiver receives and converts the optical signals into electrical signals, demultiplexes the electrical signals to obtain each signal, and combines the effective high-definition video signals according to a required high-definition format for output.

Description

Technical field: [0001] The present invention relates to the electrical field, in particular to communication technology, in particular to optical communication equipment, in particular to a high-definition video multi-service optical transceiver. Background technique: [0002] High-definition video product applications are rapidly gaining popularity. High-definition video surveillance can provide clearer images and richer image details for the security industry. In the prior art, high-definition video surveillance solutions mainly include IP-based network high-definition and HD-SDI-based real-time high-definition two technical routes. IP-based network high-definition technology has the disadvantage of time delay. HD-SDI high-definition directly transmits uncompressed video signals through coaxial cable or optical fiber, realizing real real-time high-definition. The high-definition video signal rate is high and occupies a large bandwidth, and the HD-SDI signal rate is 1.4...

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to transmit multiple channels of high-definition video on one fiber

However, the security industry often requires simultaneous transmission of multiple channels of video surveillance, and the existing technology is difficult to meet the requirements of multiple channels of high-definition video surveillance

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