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:
Feb. 11, 1997
Filed:
Sep. 09, 1994
Glenn J Maenza, Glen Mills, PA (US);
Sony Corporation, Tokyo, JP;
Sony Music Entertainment, Inc., New York, NY (US);
Abstract
A super high resolution rotary optical encoder having as its disk an optical disk, i.e., a disk employing the optical principle of non-contact readout based on diffraction theory. The encoder is adapted to be coupled to a device of which it is desired to measure the rotational motion thereof. The encoder includes an optical disk having, at a fixed radial distance, at least one track of pits and lands; a coupler for coupling the optical disk to the device such that rotary motion of the device results in a corresponding rotary motion of the optical disk; and an optical disk pick-up for generating an output in response to the pits and lands indicative of the rotary motion of the device.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile