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:
Jul. 06, 1993
Filed:
Mar. 23, 1992
Applicant:
Inventors:
Toshiaki Kojima, Kanagawa, JP;
Kazuyuki Sugizaki, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
226196 ; 360 71 ; 360 95 ; 242 76 ;
Abstract
In a tape guide system having a tape guide device for guiding a magnetic tape in a video tape recorder or the like and which comprises a tape guide and an ultrasonic vibrator fixed to the tape guide for vibrating the tape guide with a standing wave, a drive device supplies a drive signal to the ultrasonic vibrator, and a temperature compensating circuit is provided for effecting temperature compensation of the drive signal supplied from the driver device to the ultrasonic vibrator.