Method for error correction of a transmitted data word

Details Method for error correction of a transmitted data word Method for error correction of a transmitted data word

G - Physics

06

F

G06F 11/08 (2006.01) G06F 11/14 (2006.01) H03M 13/43 (2006.01) H04L 1/08 (2006.01) H04L 1/18 (2006.01)

Patent

CA 2084884

2084884 9221085 PCTABS00017 The process of the present invention error corrects subaudible data words that have been transmitted over a voice channel. A data word may be transmitted up to three times (515), if an acknowledge is not received by the transmitter. If any of the three possible repeats of the received data word are decodable an acknowledgment (525) is transmitted. If all three repeats of the data word contain uncorrectable errors a bitwise majority vote (519) is performed on the three data words. If the result of majority vote is decodable, an acknowledgment (525) is transmitted to the sender.

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