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. 21, 1985
Filed:
Dec. 16, 1981
Applicant:
Inventor:
Shuji Hoshika, Tokyo, JP;
Assignee:
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
2502 / ; 2502 / ;
Abstract
A scale board carries a scale having a predetermined pitch and a light source projects this scale onto an array of sensors having a pitch which is substantially but not exactly equal to the pitch of the scale. By comparing successive pairs of sensor outputs, the angular position of the scale board can be determined to a resolution much smaller than the scale pitch.
Hoshika, Shuji. (1985). Angle measuring device with line sensor (U.S. Patent No. 4518859). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4518859
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile