Multiplex communications – Fault recovery
Reexamination Certificate
2005-09-06
2005-09-06
Vu, Huy D. (Department: 2665)
Multiplex communications
Fault recovery
C370S338000
Reexamination Certificate
active
06940809
ABSTRACT:
A system and method where a data transmitter retransmits data frames to a receiver for combination with previously transmitted data frames that were received with errors to increase gain at the receiver. The data transmitter receives a retransmission request from the receiver and retransmits a particular data frame without a signaling message. The receiver compares the retransmitted data frame to other data frames stored in a buffer to determine the likelihood of a match between the transmitted data frame and a buffered data frame. When the likelihood of a match exceeds at least one predetermined threshold, the receiver combines the retransmitted data frame with the matching data frame. If the likelihood of a match is below any of the predetermined thresholds, the receiver stores either the combined data frame, or the retransmitted and matching data frame, depending on which threshold is not exceeded, and sends another retransmission request.
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Karimullah Khalid
Lee Lin-Nan
Sun Feng-Wen
Grunebach Georgann S.
Ryman Daniel
The Directv Group, Inc.
Vu Huy D.
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