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:
May. 02, 1989
Filed:
Jul. 24, 1987
Masatoshi Ida, Hachioji, JP;
Olympus Optical Co., Inc., Tokyo, JP;
Abstract
An assembly for accessing information recording tracks of an information storage medium comprises a transducer for recording and/or reproducing information; a transducer support carriage for advancing the transducer; a driving force generator for producing a driving force to shift the carriage; and motion converting means for converting an input motion from the driving force generating means to an output motion to be transmitted to the carriage. The motion converting means includes a cam with a spiraling peripheral surface having a plurality of fine step pitch shifting regions for precise tracking control and at least one rough pitch shifting region for shifting the transducer quickly from track to track on the recording medium.