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. 11, 2003
Filed:
Jul. 17, 2000
Yasuhiro Okamoto, Osaka, JP;
Keyence Corporation, Osaka, JP;
Abstract
A tolerance-level display portion is provided in a casing of a head of a photoelectric switch. A light reception signal output from the head is transmitted through a cable of a main body . The casing of the main body contains a received light amount display portion , a tolerance-level display portion , adjust switches and setting switches . The CPU in the main body calculates a ratio of a light reception signal to a threshold value to obtain a tolerance level, and applies a control signal corresponding to the obtained tolerance level to a variable power supply circuit. The variable power supply circuit applies a variable voltage, which is dependent on the control signal, through a cable to the head . The tolerance-level display portion of the head displays a tolerance level on the basis of the variable voltage by turning on the tolerance-level display LEDs and
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile