Method of correcting errors of digital signals in the recording and reproduction of digital signals
Method of correcting data carried on video format signal
Method for uniformly encoding data occurring with different word lengths
Error correction method
Data transmission system
Forward error correction of data transmitted via television signals
Write operation with gating capability Patent #: 4996690
ApplicationNo. 604638 filed on 10/22/1990
US Classes:348/466, Error correction or prevention348/461, NONPICTORIAL DATA PACKET IN TELEVISION FORMAT370/474, Assembly or disassembly of messages having address headers714/761, Random and burst error correction714/762, Burst error correction714/776For packet or frame multiplexed data
ExaminersPrimary: Chin, Tommy P.
Assistant: Lee, Michael G.
Attorney, Agent or Firm
Foreign Patent References
International ClassesH04N 007/04
Foreign Application Priority Data1989-10-27 JP
AbstractA video signal transmitting method comprising: a sending method including the steps of: dividing an analog video signal in a unit corresponding to integer times of a number of bits composing an information field of one packet in packet transmission and converting into a digital video signal, forming a digitalized video signal into a plurality of packets, forming a plurality of packets into a first packet block in M lines×N columns, adding an error correction code which corrects a longitudinal error of data in a first packet block as a second packet block in P lines×N columns in an (M+1)th line and thereafter, and sending a packet; and a receiving method including the steps of: recomposing the same packet block as that composed on a sending side from plurality of received packets, recovering a video signal with packet loss information from an exchange and an error correction code formed into a packet, and regenerating an analog video signal from a digital video signal after recovery.