Data communication system with block synchronization data in...

Details Data communication system with block synchronization data in... Data communication system with block synchronization data in...

H - Electricity

04

L

325/27

H04L 7/00 (2006.01) H04L 7/04 (2006.01) H04Q 7/22 (2006.01)

Patent

CA 1250899

ABSTRACT OF THE DISCLOSURE A block synchronization data communication system enables data communication to be properly effected even through a transmission channel under extremely unfavorable conditions as in mobile radio such as used in automobiles. The block synchroni- zation data communication system comprises equipment for encoding data to be transmitted forming the encoded data into blocks, adding a block synchronization signal having a plurality of different successive patterns positioned in the prescribed order to the head of the block data, transmitting the block data added with the block synchronizing signal, receiving the transmitted data and recogniz- ing one of the patterns constituting the block synchronizing signal, estimating the data position based on a block synchroni- zation signal constitution position of the properly recognized pattern, and decoding the block data beginning from the estimated position as received data.

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