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:
Feb. 23, 2016
Filed:
Mar. 12, 2013
Panasonic Corporation, Osaka, JP;
Hiroshi Takahashi, Kanagawa, JP;
Yoshio Urabe, Kanagawa, JP;
Kazuhiro Ando, Kanagawa, JP;
Naoto Oka, Kanagawa, JP;
Masataka Irie, Kanagawa, JP;
Panasonic Corporation, Osaka, JP;
Abstract
In a signal detection apparatus, power detection sectiondetects power of an inputted received signal, and upon detection of power exceeding a power detection threshold, outputs a trigger to storage section. Storage sectionstores a first received signal upon reception of the trigger and outputs the stored first received signal to multiplierand newly stores a second received signal upon receipt of the next trigger. Multipliermultiplies the second received signal by the first received signal, integratorintegrates the multiplication result from multiplierduring a predetermined duration to obtain a correlation value of the second and first received signals, and absolute value calculation sectioncalculates an absolute value of the correlation value from integrator. Determination sectiondetermines the presence/absence of a detection-target signal based on the absolute value of the correlation value from absolute value calculation section