Method and apparatus for frame rate determination without...

Pulse or digital communications – Testing – Data rate

Reexamination Certificate

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C375S147000, C370S342000

Reexamination Certificate

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07130339

ABSTRACT:
A spread spectrum receiver (124) for receiving and decoding a data frame having one of a plurality of coding rates is coupled to a rate determination device (132). The rate determination device (132) is coupled to receive a data frame coded at one of the plurality of coding rates and to receive symbol data from the receiver (124). The rate determination device (132) is adapted to determine a probability based at least upon an rate-based symbol repetition constraints within the data frame, wherein the probability is an indication of the rate at which the data frame is encoded.

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patent: 6175588 (2001-01-01), Visotsky et al.
patent: 6424631 (2002-07-01), Czaja et al.
patent: 6463097 (2002-10-01), Held et al.
patent: 6560744 (2003-05-01), Burshtein
“A ML Rate Detection Algorithm for IS-95 CDMA”, Gutierrez et. al., IEEE1999.
Cohen et al.,Multi-Rate Detection For the IS-95 CDMA Forward Traffic Channels, pp. 1789-1793, 1995.
Cohen et al.,Multi-Rate Detection For The IS-95A CDMA Forward Traffic Channels Using The 13KBPS Speech Coder, pp. 1844-1848, 1996.

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