Adaptively coded data communication system with half duplex and/

Details Adaptively coded data communication system with half duplex and/ Adaptively coded data communication system with half duplex and/

1986-01-14

1987-10-20

Fleming, Michael R.

Excavating

371 37, G06F 1100

Patent

active

047019239

ABSTRACT:
An error correcting encoding method and a vehicle data communication apparatus based on the same for use in data communication via fading communication channels dominated by burst errors in the data communication among vehicles such as automobiles are disclosed. The error correction encoding method detects, as data sent from a transmitting side is received by a receiving side, any error contained in the received data as a frame error rate of error frames involved in block data or a bit error rate of error bits involved in the block data and selects an error correcting code in response to the frame error rate for encoding. The vehicle data communication apparatus according to the present invention profitably employs the method, and changes an error correcting code to be used on the transmitting side in response to the extent of errors involved in the received data detected by the receiving side of a remote apparatus.

REFERENCES:
patent: 3078443 (1963-02-01), Rose
patent: 3372376 (1968-10-01), Helm
patent: 3506961 (1970-04-01), Abramson
"Error Correction Coding Starting To Be Extensively put into Practice in Various Fields", by Tanaka, Nikkei Electronics, 1975, 12 to 15, pp. 48-52.

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