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, 1989
Filed:
Jan. 15, 1988
Akihiro Takagi, Kawasaki, JP;
Kiyoshi Kimoto, Tokyo, JP;
Nikon Corporation, Tokyo, JP;
Abstract
Apparatus for reproducing recorded information applies a linearly polarized light beam to a recording medium having first and second recorded information tracks. The recording medium is formed so that the intensity of reflected light relative to the incident light varies in accordance with the information recorded in one of the tracks, and the plane of polarization of the reflected light relative to the linearly polarized incident light varies in accordance with the information recorded in the other track. The reflected light is divided into two components having different planes of polarization. A recorded magnetooptic signal is reproduced from the difference in intensity between the two components, and a recorded light intensity signal is reproduced from at least one of the two components.