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. 08, 2011
Filed:
Sep. 30, 2004
Marvin L. Vis, Boulder, CO (US);
Jing Liang, Superior, CO (US);
Richard T. Behrens, Layfayette, CO (US);
Samuel Rousselin, Rennes, FR;
Marvin L. Vis, Boulder, CO (US);
Jing Liang, Superior, CO (US);
Richard T. Behrens, Layfayette, CO (US);
Samuel Rousselin, Rennes, FR;
St-Ericsson S.A., Plan-Les-Ouates, CH;
Abstract
A wireless communication system is provided that detects a frequency burst (FB) through analysis of the autocorrelation function of received signals. The system can accommodate the relatively large frequency offsets that are associated with less expensive reference frequency crystals. The system employs a multi-mode filter including an FB filter and a channelization filter. In one embodiment, the FB filter is employed until an FB is located and then, once the FB is located, the channelization filter is employed to receive signals.