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. 16, 1976
Filed:
Apr. 12, 1976
Applicant:
Inventors:
Masahiro Watanabe, Sagamihara, JA;
Hideo Shibuya, Yokohama, JA;
Assignees:
Matsushita Electric Industrial Co., Ltd., BOTH OF, JA;
Toyota Jidosha Kogyo Kabushiki Kaisha, BOTH OF, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S / ;
U.S. Cl.
CPC ...
343-75 ; 343-8 ;
Abstract
A Doppler radar for use in a vehicle for predicting a collision with another vehicle, capable of detecting noise due to a false wave i.e., the transmitted wave from another vehicle having a frequency in the vicinity of the true transmitted wave frequency and having entered through a receiver antenna into a mixer, and controlling the frequency of the true transmitted wave to depress said noise to zero, thereby avoiding the interference of the false wave with the Doppler signal output.