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:
Jun. 09, 2009
Filed:
Aug. 26, 2004
Applicants:
Takamoto Watanabe, Nagoya, JP;
Tetsuya Nakamura, Chiryu, JP;
Sumio Masuda, Tokyo, JP;
Inventors:
Assignee:
DENSO CORPORATION, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a synchronous detection method, an input signal is averaged over at least first and second phase ranges of a target carrier wave within each period thereof to obtain at least first and second moving average values of the input signal within the at least first and second phase ranges, respectively. The first phase range corresponds to a positively oscillating phase range of the target carrier wave, and the second phase range corresponds to a negatively oscillating phase range thereof. A difference between the first and second moving averages is calculated as a detection result of the target carrier wave.