Pulse or digital communications – Receivers – Particular pulse demodulator or detector
Reexamination Certificate
2007-11-20
2007-11-20
Ahn, Sam K. (Department: 2611)
Pulse or digital communications
Receivers
Particular pulse demodulator or detector
Reexamination Certificate
active
10795817
ABSTRACT:
A decision processor for 802.11b codewords for 1 Mb and 2 Mb data rates includes a sliding correlator for the acquisition of correlation peaks. During a training interval, these correlation peaks are summed into a channel profile memory. The correlation peaks corresponding to a codeword are added into the channel profile memory, and correlation peaks corresponding to the inverse of this codeword are inverted and added into the channel profile memory during the training interval. After the training interval, a decision interval follows whereby correlation peaks are multiplied by the complex conjugate of the contents of the channel profile memory. The multiplication results are accumulated over a codeword window interval to produce a decision output.
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Sailaja Sankabathula Dharani Naga
Sarathy Murali Partha
Venkatesh Narasimhan
Ahn Sam K.
Chesavage Jay A.
File-EE-Patents.com
Redpine Signals, Inc.
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