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:
Aug. 16, 2011
Filed:
Mar. 24, 2009
Hiroshi Touge, Ichinomiya, JP;
Hiroshi Touge, Ichinomiya, JP;
Aisin Seiki Kabushiki Kaisha, Kariya-Shi, Aichi-Ken, JP;
Abstract
An object detecting apparatus detecting an object position based on a reflected wave generated by reflection of a transmitted ultrasonic wave from the object includes a transmitting portion transmitting the ultrasonic wave, a receiving portion receiving the ultrasonic waves as received signals, a detecting position detecting an envelope and an operation portion detecting a peak of each envelope and obtaining an approximate line with a maximum change amount of the envelope in a change amount increasing period set to a gradient of the approximate line, provided that the change amount increasing period is defined as a period that an amount of change per a predetermined unit time of the envelope, heading to the peak, continues to increase, the operation portion obtaining a time that a voltage value of the approximate line equals a reference value as a receipt time and detecting the object position based on the receipt time.