Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the record
Patent
1996-09-06
1998-09-29
Hindi, Nabil
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the record
360 7314, G11B 1552
Patent
active
058153365
ABSTRACT:
A method for sensing the position of a magnetic tape during a continuous travel of the magnetic tape in a video cassette recorder. The method is particularly applicable to a VCR which includes a capstan motor for feeding the magnetic tape in the video cassette recorder at a constant speed, a capstan motor frequency generator for generating a pulse signal having a value determined in accordance with a rotating operation of the capstan motor, a reel sensing unit for sensing a rotated state of a reel on which the magnetic tape is wound, and a microprocessor provided with a storage medium. The microprocessor serves to control the rotating operation of the capstan motor while detecting the number of pulses generated from the capstan motor frequency generator per revolution of the reel, thereby sensing the current position of the magnetic tape. The method involves the steps of detecting a predetermined number of pulses generated from the capstan motor frequency generator, checking the rotating direction of the capstan motor, and adding the detected number of pulses to a stored number of pulses or deducting the detected number of pulses to a stored number of pulses in accordance with the rotating direction of the capstan motor, and calculating the current position of the magnetic tape based on the number of pulses obtained by the computation.
REFERENCES:
patent: 4363048 (1982-12-01), Tanaka et al.
patent: 4644436 (1987-02-01), Unno
patent: 4887172 (1989-12-01), Steele
patent: 4963999 (1990-10-01), Utsunomiya et al.
patent: 4996611 (1991-02-01), Ito
patent: 5229898 (1993-07-01), Fujisawa et al.
Hindi Nabil
Samsung Electronics Co,. Ltd.
LandOfFree
Method for sensing position of magnetic tape during discontinuou does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for sensing position of magnetic tape during discontinuou, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for sensing position of magnetic tape during discontinuou will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-691692