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:
Jan. 04, 2011
Filed:
Apr. 06, 2010
Applicant:
Koichi Matsumoto, Tokyo, JP;
Inventor:
Koichi Matsumoto, Tokyo, JP;
Assignee:
Nireco Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01S 13/08 (2006.01); G01S 13/00 (2006.01); H04B 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Distance measuring apparatus has a rough distance measuring circuit () using a time delay circuit and a precise distance measuring circuit () for measuring the orientation of the vector of a carrier wave to determine the distance, the sum of which is the final output. The rough distance measuring apparatus () has a long measurement span but low precision. The precise distance measuring apparatus () has a short measurement span but high precision. The combination provides distance measuring apparatus having a long measurement span and high resolution and capable of implementing precise measurement.