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. 17, 1984
Filed:
Dec. 14, 1979
Hisaharu Takeuchi, Kawasaki, JP;
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Abstract
A control apparatus for a recording/playback system using an endless recording medium having a position detecting mark attached thereto and driven at a given speed to move along an endless loop, wherein the position detecting mark is detected as the recording medium is driven and a mark position signal generated to indicate each passage of the mark passed a predetermined point in the endless loop. Recording or playback operation is controlled based on the time between detection of successive mark position signals which is indicative of the one-cycle length of the recording medium. The one-cycle length of the endless recording medium is stored as data which may be changed upon changing of the tape length and/or the tape speed. Once the one-cycle length data is stored, automatic recording may be started from any position on the endless recording medium at any time.