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:
Mar. 07, 2006
Filed:
Feb. 23, 2004
Takehiro Motegi, Tokorozawa, JP;
Takehiro Motegi, Tokorozawa, JP;
Pioneer Corporation, Tokyo-to, JP;
Abstract
The optical pickup reads an information signal by emitting a light beam to an information recording surface of a recording medium having a recording track composed of information pits arranged for recording the information signal. The optical pickup is provided with: a light source which emits the light beam having linear polarization; an optical system which guides the emitted light beam to the information recording surface and further guides light that is emitted from the information recording surface based on the guided light beam, to an optical path different from an optical path to the light source; and a light-receiving device which receives the light guided by the optical system from the information recording surface. The optical system controls a polarization direction of the emitted light beam, with respect to a direction of the recording track.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile