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:
Aug. 16, 2005
Filed:
Nov. 26, 2002
Sung Pyo Hong, Suwon-si, KR;
Sung Pyo Hong, Suwon-si, KR;
LG Electronics Inc., Seoul, KR;
Abstract
A method and apparatus can control a tape speed in a magnetic tape recording/reproducing apparatus. The method can include operating the brake unit at a determined operating point to reduce the rotating speed of the supply or take-up reel, sensing the rotating speed of the capstan motor during the speed reduction by the brake unit at least two times to calculate when the rotating speed of the capstan motor substantially operates at a reduced target rotating speed, and stopping the braking operation of the brake unit based on the calculated time point. The method and apparatus can selectively achieve a rapid high-speed winding operation while reducing or preventing damage to the tape, and to achieve an accurate control substantially irrespective of surrounding conditions.