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:
Jul. 18, 1989
Filed:
Oct. 20, 1987
Takehiko Miyamoto, Tokyo, JP;
Kabushiki Kaisha Empire Airport Service, Tokyo, JP;
Abstract
An absolute-type encoder is coupled to a drive shaft, which is rotatively driven by a motor, for detecting the amount of rotation of the drive shaft. The encoder includes a rotary disk storing position information and rotated in accordance with rotation of the drive shaft, a magnetic head for reading, in the form of a serial signal, the position information stored on the rotary disk, a counter for counting the holding information read by the magnetic head and outputting the information in the form of parallel information, and a battery for supplying operating power to the counter and magnetic head.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile