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. 01, 2011
Filed:
Feb. 10, 2006
Kenji Suzuki, Tokyo, JP;
Hiroyuki Kobayashi, Tokyo, JP;
Syuuji Murayama, Tokyo, JP;
Kenji Inamoto, Tokyo, JP;
Kenji Suzuki, Tokyo, JP;
Hiroyuki Kobayashi, Tokyo, JP;
Syuuji Murayama, Tokyo, JP;
Kenji Inamoto, Tokyo, JP;
NEC Viewtechnology, Ltd., Tokyo, JP;
Abstract
An ultrasonic receiver receives an ultrasonic signal having a period in which an amplitude thereof progressively increases as time elapses. A pattern matching unit determines whether a comparative pattern, which is generated as a result of comparison between the respective maximum amplitude values of a plurality of successive waves of said wave signal and a threshold value set by a threshold setting unit, matches a reference pattern or not during the period of the ultrasonic signal. The pattern matching unit determines that the ultrasonic receiver has successfully received the ultrasonic signal if the comparative pattern matches the reference pattern.