Data communications systems and methods using interspersed error

Details Data communications systems and methods using interspersed error Data communications systems and methods using interspersed error

1996-05-03

1999-06-08

Elmore, Reba I.

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

714794, 714755, G06F 1110

Patent

active

059101822

ABSTRACT:
A communication system and method for communicating data bits includes generating error detection bits for interspersing within a sequence of data bits to be transmitted to provide a message to be transmitted. The interspersed data bits may be dependent on the data bits or determined independent of the data bits. The message to be transmitted is convolutionally encoded and transmitted through a communications medium. The received message is convolutionally decoded by a convolutional decoder which is operably connected to an error indication logic circuit. The interspersed error detection bits may be used to detect an uncorrected error in transmission or to constrain the convolutionally decoding to provide an improved error correction operation based on the determinate values of the interspersed error detection bits.

REFERENCES:
patent: 5349589 (1994-09-01), Chennakeshu et al.
patent: 5577053 (1996-11-01), Dent
O. Collins, Determinate State Convolutional Codes, IEEE Transactions on Communications, vol. 41, No. 12 (Dec. 1993).
G. Clarke, Jr., Error-Correction Coding for Digital Communications, Appendix B. Plenum Press, New York (1981).
D. Forney, The Viterbi Algorith, Proc. IEEE, vol. 61, pp. 268-278 (Mar. 1973).

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