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:
Apr. 03, 1984
Filed:
Jan. 29, 1982
Applicant:
Inventors:
Kozo Kobayashi, Kodaira, JP;
Hiromu Meguro, Kodaira, JP;
Assignee:
Nakamichi Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01B / ; G11B / ;
U.S. Cl.
CPC ...
369270 ; 346137 ; 369 58 ; 369233 ; 369258 ; 369263 ; 369264 ;
Abstract
This invention pertains to a method of correcting a position of a disk record on a turntable for positioning the record on the turntable in a concentric manner relative to the rotational center of the turntable. In the method of the invention, a stylus which is mounted on a pickup arm traces a groove of a record placed on a turntable. On tracing the groove of the record, an angular displacement of the pickup arm is detected for detecting an eccentricity of the record relative to the rotational center of the turntable. The position of the record on the turntable is corrected in accordance with the detected eccentricity.