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:
Jan. 01, 2013
Filed:
Jun. 29, 2010
Bhaskar V. Nallapureddy, Sunnyvale, CA (US);
Songping Wu, Sunnyvale, CA (US);
Tsunglun Yu, Cupertino, CA (US);
Hui-ling Lou, Palo Alto, CA (US);
Bhaskar V. Nallapureddy, Sunnyvale, CA (US);
Songping Wu, Sunnyvale, CA (US);
Tsunglun Yu, Cupertino, CA (US);
Hui-Ling Lou, Palo Alto, CA (US);
Marvell World Trade Ltd., St. Michael, BB;
Abstract
A system including a sampling module that generates samples of RF signals on a first channel during first, second, and third periods, which do not overlap. A difference module determines a first difference between i) a first count of polarity reversals during the first period and ii) a second count of polarity reversals during the second period; a second difference between i) the second count and ii) a third count of polarity reversals during the third period; and a third difference between the first and second differences. A third module determines a frequency of the RF signals based on at least one of the first and second counts, determines a frequency variation of the RF signals based on the first and second counts, and identifies a radar type of the RF signals based on at least one of the third difference and the frequency variation.