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:
Mar. 04, 2014
Filed:
Dec. 20, 2012
Nireco Corporation, Tokyo, JP;
Koichi Matsumoto, Tokyo, JP;
Yasumasa Kato, Tokyo, JP;
Nireco Corporation, Tokyo, JP;
Abstract
Disclosed is a distance measuring apparatus which includes: a first pulse generating means () which generates reference signals; a second pulse generating means () which generates subject detection signals; a time measuring section () which measures a period of time from a time when a first pulse is generated to a time when a second pulse is generated; a first phase detecting section () which detects the first phase of a signal received using a signal at a first frequency; a second phase detecting section () which detects the second phase of a signal received using a signal at a second frequency; and a distance calculating section () which calculates the distance to the subject on the basis of output from the time measuring section, the first phase detecting section and the second phase detecting section.