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. 21, 2012
Filed:
Feb. 12, 2010
Keiko Akiyama, Kariya, JP;
Mitsuyasu Matsuura, Chiryu, JP;
Toshiki Isogai, Nagoya, JP;
Takahiko Yoshida, Okazaki, JP;
Yasuyuki Okuda, Aichi-gun, JP;
Keiko Akiyama, Kariya, JP;
Mitsuyasu Matsuura, Chiryu, JP;
Toshiki Isogai, Nagoya, JP;
Takahiko Yoshida, Okazaki, JP;
Yasuyuki Okuda, Aichi-gun, JP;
Nippon Soken, Inc., Nishio, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
In an obstacle detection system, a wave transmitted by a transmitting element and received by receiving elements as a receiving wave includes extraneous waves, which are reflection waves from other than an obstacle, and obstacle reflection waves from an obstacle. It is determined that, an obstacle is present, if the reflection waves are detected as having an amplitude (voltage) greater than a threshold level and a reception time difference between time points at which the amplitude exceeds threshold level at the receiving elements is less than a predetermined time.