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:
May. 26, 1992
Filed:
Oct. 18, 1989
Kenji Suzuki, Hamamatsu, JP;
Yamaha Corporation, Hamamatsu, JP;
Abstract
A magnetic tape recording and playback device records or plays back a signal using a tape, in which a top portion thereof is connected to a leader tape which is non-magnetic substance. The device comprises a switch for setting an initial position, a detector provided on a tape running path for detecting that a tape portion at a point of detection is a boundary between a leader tape and a magnetic substance portion of the tape, a head provided on the tape running path to effect recording or playback on the tape, a mechanical portion for driving the tape to move along the tape running path, and a drive control circuit for controlling driving of the tape so as to drive the mechanical portion to rewind the tape when the switch has been operated and, upon detection of the boundary between the leader tape and the magnetic substance portion by the detector, stop driving of the tape in a state where the head is positioned in the vicinity of a top portion of the magnetic substance portion thereby to set the initial position.