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.

Date of Patent:
Dec. 24, 1985

Filed:

Sep. 08, 1983
Applicant:
Inventor:

Ichiro Narumi, Tokorozawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369 44 ;
Abstract

A support structure of an optical part placed in an optical path of a light beam of a system for optically reading out recorded information, such as a video disc player system, including a first servo control system incorporating the optical part and a second servo control system respectively controlling a direction of the light beam in a pair of directions which are perpendicular to each other, the support structure supporting the optical part via an elastic member for permitting a movement of the optical part in accordance with an operation of the first servo control system. The elastic member has a configuration which is suited for selecting a resonant frequency of a movement of the optical part which causes a movement of the light beam in accordance with the operation of the second servo control system while allowing a normal movement of the optical part in accordance with the operation of the first servo control system, thereby to set the resonant frequency in a frequency range which is controllable by the operation of the second servo control system and to eliminate an undesirable result of the movement of the optical part other than the normal movement controlled by the first servo control system.


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