Method and apparatus of determining bad frame indication for...

Details Method and apparatus of determining bad frame indication for... Method and apparatus of determining bad frame indication for...

2005-10-28

2008-10-07

Britt, Cynthia (Department: 2117)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Error count or rate

C714S746000, C704S219000

Reexamination Certificate

active

07434117

ABSTRACT:
A method of operating a receiver to determine a bad frame indication (BFI) of a received speech block includes decoding speech information bits of the received speech block; re-encoding the decoded speech information bits; comparing the received speech information bits with the corresponding decoded and re-encoded speech information bits to calculate a number of erroneous bits; determining a mode information of the received speech block; calculating a signal quality measurement of the received speech block; calculating a block quality metric according to the mode information, wherein the block quality metric is related to both the number of erroneous bits and the signal quality measurement; and setting the BFI of the received speech block according to the block quality metric.

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