System and method for error recovery using NAKs

Details System and method for error recovery using NAKs System and method for error recovery using NAKs

2005-07-19

2005-07-19

Ton, David (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S750000

Reexamination Certificate

active

06920598

ABSTRACT:
In a system of communication, a sending node sends a message to a receiving node, which NAKs unsuccessful transmissions. The sending node screens the NAKs to determine if they were sent before the receiver could receive previous transmissions of the same data NAKed. One screening technique is based on an estimated round trip time of a message. Another alternate technique looks a flag in the NAK that synchronizes the sender and the receiver.

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