PICTURE ENCODING TRANSMISSION SYSTEM

摘要

PURPOSE:To eliminate the need for a frame synchronizer or the like and to simplify the constitution by adopting the constitution such that high efficient encoding and decoding are applied based on a network synchronizing clock component from a communication network as a reference. CONSTITUTION:A network synchronizing clock component NCL.a extracted from a communication network is given to an input terminal 1 and given to a picture encoder COD 2 and a television synchronizing signal generating circuit SYG 3, which generates a black burst signal BBS.b as a reference video signal based on the NCL.a to synchronize the phase of a video signal(c) sent from a television camera CAM 4 with that of the BBS.b. The video signal (c) subject to high efficient encoding in the COD 2 and sent from a transmission terminal 5 to the communication network as a digital data at a transmission speed based on the NCL.a. A digital data from the communication network given to a reception terminal 6 is decoded by a picture decoder DEC 7. The decoding in the DEC 7 is implemented by using a clock SCL.d generated based on the NCL.a by a sampling clock generating circuit SCG 9.