Digital information transmitting and receiving system

Details Digital information transmitting and receiving system Digital information transmitting and receiving system

1989-03-07

1991-12-03

Jablon, Clark A.

Excavating

371 21, 360 381, 358336, G06F 1100

Patent

active

050705032

ABSTRACT:
A digital information transmitting and receiving system constructed of a transmitter and a receiver. The transmitter includes a high efficiency encoding circuit for compressing digital information codes using correlativity among the digital information codes, and outputting compressed information codes; an error correcting code generating circuit for sampling the compressed information codes in the direction of correlativity used by the high efficiency encoding circuit, and generating an error correcting code using the sampled compressed information codes; and a transmitting unit for transmitting a code train including the compressed information codes and the error correcting code. The receiver includes a receiving unit for receiving the code train; a first error correcting circuit for correcting an error code of the compressed information codes by using the error correcting code within the code train received by the receiving unit, the first error correcting circuit outputting an error flag representative of whether there is an uncorrectable code within the code train having a predetermined number of the compressed information codes; and a second error correcting circuit for correcting an error code of the information code in units of the predetermined number of the compressed information codes, in accordance with the error flag.

REFERENCES:
patent: 3831143 (1974-08-01), Trafton
patent: 4215335 (1980-07-01), Doi
patent: 4329708 (1982-05-01), Yamamoto
patent: 4672472 (1987-06-01), Sugiyama
patent: 4760576 (1988-07-01), Sako
patent: 4852102 (1989-07-01), Yamaguchi
patent: 4914527 (1990-04-01), Asai

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