Texas Instruments Corporation

Michael Golanbari

Richard G Williams

A method and apparatus is presented for detecting the presence of a packet being transmitted on a communications medium using self-correlation of samples taken from the communications medium. The method saves on power consumption by sampling the communications medium at a sampling rate that is lower than the sampling rate used for sampling the data in the packet. An unexpected result is achieved when packet detection performs better at the lower sampling rate than at the higher sampling rate.

Low-power packet detection using decimated correlation

A method for detecting a boundary between two sequences in a wireless local area network is presented that permits rapid detection of the boundary. The method includes provisions for proper operation when significant interference and multi-path can degrade the received transmission significantly. Additionally, when a modification is made to the signaling format to signal a special enhanced mode with performance and features above those that are specified in a single technical standard, the method detects the boundary between sequences regardless of whether they have the standard format or the modified format.

Growing community of inventors

Santa Rosa, CA, United States of America

Michael Golanbari