Teletext decoder with error detection and correction

Details Teletext decoder with error detection and correction Teletext decoder with error detection and correction

1991-06-04

1994-01-11

Canney, Vincent P.

Excavating

371 377, G06F 1108

Patent

active

052788458

ABSTRACT:
Teletext decoder including an error detection and correction circuit in which the detection and correction of bit errors is effected in a serially manner in Hamming bytes. The teletext decoder includes selection means for selecting predetermined bits from the received bytes, modulo-2 accumulators for generating a syndrome word which indicates the presence and position of bit errors, decoding means for generating a correction value and correction means for correcting faulty data bits during the serial transfer. The error detection and correction circuit can also be used with other data communication systems as well as with digital storage means.

REFERENCES:
patent: 3675200 (1972-07-01), Bossen et al.
patent: 4276647 (1981-06-01), Thacker et al.
Optical Disk Error Correction by Solomon W. Golomb, Byte Magazine May 1986, pp. 203, 204, 206, 208 and 210.
"Error Control Coding Fundamentals and Applications", by Shu Lin, University of Hawaii/Texas A&M University and Daniel J. Costello, Jr., Illinois Institute of Technology, Prentice-Hall, Inc., Englewood Cliffs, N.J. 07632, pp. 102-110.
"Teletext and Viewdata" by Steve A. Money, Newnes Technical Book, Kent, England, pp. 34-45.

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