The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 10, 2015
Filed:
Apr. 23, 2007
Gregory Lerner, Petach Tikva, IL;
Nir Tal, Haifa, IL;
Dan Wolberg, Moshav Yanuv, IL;
Manoneet Singh, Santa Clara, CA (US);
Yehuda Azenkot, San Jose, CA (US);
Gregory Lerner, Petach Tikva, IL;
Nir Tal, Haifa, IL;
Dan Wolberg, Moshav Yanuv, IL;
Manoneet Singh, Santa Clara, CA (US);
Yehuda Azenkot, San Jose, CA (US);
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
A novel and useful apparatus for and method of packet detection and carrier frequency offset estimation. The packet detection mechanism is robust to channels and sustains reasonable miss-detect (and false alarm) rates at low SNR values. The mechanism uses a modified combined cross correlation and delay and correlate scheme. A delay and correlate scheme is used in order to handle the effects of multipath while swapping integration and multiplication to increase cross-correlation factors resulting in improved sensitivity in low SNR conditions. Correlation is divided into multiple chains to generate a plurality of partial correlations to observe short patterns in the spread sequence resulting in improved performance in long multipath channels.