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:
Aug. 15, 2000
Filed:
Sep. 25, 1998
Masakuni Yamamoto, Yamato, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A magneto-optical information reproducing apparatus and method reproduces information by displacement of a domain wall of a magnetic domain recorded by mark-edge recording on a recording medium. The apparatus applies a magnetic field for reproduction, extracts a signal produced by displacement of a domain wall of one of a front edge and a rear edge of a magnetic domain, then optionally reverses the direction of the magnetic field, and extracts a signal produced by displacement of the domain wall at the other edge. The apparatus may also synthesize a signal produced by displacement of a domain wall at the front edge with a signal produced by displacement of a domain wall at the rear edge, with the synthesized signal being used as the reproduced signal.