Effective error control scheme for satellite communications,申请号US19800215489-传众专利搜索

Effective error control scheme for satellite communications

申请公布号：US4344171(A)

申请号：US19800215489

申请日期：1980.12.11

申请公布日期：1982.08.10

申请人：

INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人：LIN, SHU;YU, PHILIP S.

分类号：H04L1/00;G06F13/00;H04B7/185;H04L1/16;H04L1/18;(IPC1-7):G06F11/10

主分类号：H04L1/00

摘要：A hybrid scheme for controlling transmission errors in digital data communication systems. Normally, data blocks with a small number of parity digits for error detection are transmitted. When the presence of errors is detected, the retransmissions are not the original data blocks but some properly selected blocks for correcting errors in those erroneously received data blocks which are stored in a buffer at the receiver. The retransmitted blocks are formed based on the original data blocks and error-correcting codes with an invertible property. When such blocks are received, they are used to recover the original data blocks either by an inversion operation or by a decoding process.