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:
May. 08, 2001
Filed:
Jan. 20, 2000
Hisashi Yoshida, Yokohama, JP;
Nikon Corporation, Tokyo, JP;
Abstract
A distance measuring apparatus has a light sending unit for sending pulsed light into a ranging optical path, a photodetective element for receiving pulse light reflected, and a signal processing section for measuring a period between The time of sending and the time of reception, the signal processing section determines whether to apply a first state in which one reflected pulsed beam is detected in response to the sending of the pulsed light or a second state in which two reflected pulsed beams are detected in response to the sending of the pulsed light. The signal processing section measures a period from the time of sending to reception of the first reflected pulsed beam in the first state, while the signal processing section measures a period from the time of sending to reception of the second reflected pulsed beam in the second state.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile