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. 24, 1995
Filed:
Feb. 02, 1994
Mun C Joung, Seoul, KR;
Goldstar Co., Ltd., , KR;
Abstract
A tape tension control apparatus for a VCR capable of variously and precisely controlling the tension of a tape in accordance with the using purpose by sensing the tension of a tape by sensing device such as a photosensor or a Hall sensor, driving tension member driving device, based on a sensing signal from the sensing device, thereby electrically controlling the tension of the tape. The apparatus includes a tension sensing unit for sensing the tension of a tape, a tension member partially received in an annular groove formed on a peripheral surface of the supply reel of a tape cassette and adapted to apply a variable frictional force to the supply reel, a tension member driving unit operatively connected to the tension member to control the tension member and thereby control the variable frictional force applied to the supply reel in accordance with a sensing signal from the tension sensing unit, and an electrical control unit adapted to control the tension member driving device in accordance with the sensing signal from the tension sensing device.