METHOD FOR TRANSFERRING DISCONTINUOUS INFORMATION Russian patent published in 2004 - IPC

FIELD: computer networks engineering.

SUBSTANCE: input message signal is transformed at relay end of communication line into series of code combinations consisting of n informational bits, addition to each code combination of information bits in portions of k control bits, combination of which is determined dependent on combination of n informational bits, and on receiving end of communication line message is restored on basis of received code combinations and is transferred to end device, while at relay end of communication line combination of k control bits is selected in accordance to symbol β_i, determined by means of modulus 2 addition of P=2^k symbol α_i, matching combination of k selected information bits with symbol β_i-1, matching combination of k control bits of previous code combination of message β_i=β_i-1+ α_i, (mod F), and on receiving end of communication line for each code combination a correcting symbol α*i

for selected combination of k information bits by modulus 2 addition of P=2^k symbol β_i, matching received combination of control bits, with mated symbol βci-1, matching combination of control bits of previous code combination of message α*i= β_i+ βci-1 (mod P), where βci-1=P-β_i-1 formed correcting symbols α*i are compared to symbols α_i, matching combination of k selected and received information bits, while if there is no distortions in two adjacent compared symbols, than all distorted combinations from k selected information bits α_i are replaced with combinations matching correcting symbols α*i for combination of k selected information bits, and if deviations are present in two adjacent compared symbols α_i,α*i and α_i+1,α*i+1, then distorted adjacent combinations are corrected from k selected and received information only for case, when combinations of control bits where not subject to distortions.

EFFECT: higher interference resistance when transferring discontinuous information.

3 cl, 1 dwg