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:
Oct. 04, 1983
Filed:
Aug. 05, 1981
Applicant:
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ; B65H / ;
U.S. Cl.
CPC ...
242184 ; 242 7547 ;
Abstract
In a web drive apparatus in which information is written into or read out of a web intermittently movable between a web supply reel and a web take-up reel by means of an information exchange station, a web tension control signal to be applied to a motor for the web take-up reel is compensated so as to suppress vibrations of the web which may be caused during the intermittent movement of the web.