Method for automatically adjusting tape travelling speed in a re

Details Method for automatically adjusting tape travelling speed in a re Method for automatically adjusting tape travelling speed in a re

1996-02-27

1997-09-02

Darling, John P.

Winding, tensioning, or guiding

Unwinding and rewinding a machine convertible information...

Carrier speed or tension control

G11B 1544

Patent

active

056622872

ABSTRACT:
A method for automatically adjusting the running speed of the magnetic tape during FF and RW modes of operation for use in a recorder such as a VCR comprises the steps of determining if the VCR is in a FF or a RW mode, determining the total length L of the magnetic tape, determining a tape remainder R representing the amount of tape remaining wound around a supply or a take-up reel, adjusting a rotational rate of a capstan motor incorporated in the VCR, and detecting whether the beginning or the end part of the tape has been reached.

REFERENCES:
patent: 3834648 (1974-09-01), Rose, Jr. et al.
patent: 4001552 (1977-01-01), Muller
patent: 4394994 (1983-07-01), Oono
patent: 4989112 (1991-01-01), Hamoda
patent: 5125592 (1992-06-01), Sato
patent: 5248112 (1993-09-01), Rodal et al.
patent: 5275351 (1994-01-01), Wu et al.

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