Error compensating method and apparatus and medium storing an er

Details Error compensating method and apparatus and medium storing an er Error compensating method and apparatus and medium storing an er

1997-08-21

2000-12-19

Tu, Christine Trinh L.

Error detection/correction and fault detection/recovery

Pulse or data error handling

Transmission facility testing

714748, 375219, 375224, G01R 3128, G08C 2502, H04B 1302, H04B 1700

Patent

active

061638617

ABSTRACT:
An object of the present invention is to improve the transmission efficiency and reduce circuit size in error compensating techniques where bit errors occurring during transmission are compensated for by retransmission.
Transmission equipment get sequence number(s) from control information and sequence numbers which follows from the sequence number which correspond to newest data packet amongst the sequence numbers, and transmits data packet corresponding to these sequence numbers at a predetermined timing. On the other hand, reception equipment receives data packet from the transmission equipment, and manages the sequence numbers of not yet received data packets. The reception equipment then sends back sequence number(s) of predetermined number, which is smaller number than the maximum number of data packets which is sent from transmission equipment at a predetermined timing, which correspond to not yet received data packet as control information for each predetermined timing.

REFERENCES:
patent: 4439859 (1984-03-01), Donnan
patent: 4959833 (1990-09-01), Mercola et al.
patent: 5754754 (1998-05-01), Dudley et al.

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