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:
Nov. 09, 1993
Filed:
Mar. 05, 1992
Yukio Omamyuda, Sagamihara, JP;
Shigeru Kimura, Yokohama, JP;
Toru Tanabe, Machida, JP;
Kazuhisa Iwasaki, Yokohama, JP;
Takao Seto, Yokohama, JP;
Hideki Kitamura, Yokohama, JP;
Kazuhiko Sugimura, Yokohama, JP;
Yasushi Senoo, Yokohama, JP;
Stanley Electric Co., Ltd., Tokyo, JP;
Abstract
A light-wave distance measuring apparatus has an intermittent controller for continuously changing periods of time during which a light intensity modulator 1 transmits and interrupts transmitting a light intensity modulated signal so as to avoid a synchronization of the light intensity modulated signal of the a first tranmitting apparatus with a light intensity modulated signal transmitted from a second light-wave distance measuring apparatus. The operation of the intermittent controller prevents a misfunction of the apparatus. Provisions of a self-speed detector, a time marker and a light transmission interval measuring circuit enables the apparatus to detect the speed of a target object. Thus, the apparatus is suitable for mounting on a vehicle. The apparatus operates accurately even when both the vehicle and the target object are moving. The apparatus also accurately operates without interference even when other similar light-wave distance measuring apparatus for vehicles are used in a small area.