Winding – tensioning – or guiding – Unwinding and rewinding a machine convertible information... – Automated stop or reverse
Patent
1994-04-06
1996-02-06
Nguyen, John Q.
Winding, tensioning, or guiding
Unwinding and rewinding a machine convertible information...
Automated stop or reverse
360 742, G03B 2150, G11B 1500, G11B 1548
Patent
active
054890713
ABSTRACT:
A system for preventing improper tape feed in a cassette tape player uses pulse width measurements from the take-up reel output signal to sense normal or aberrant tape feeding conditions. The pulse width of the output signal is compared with a predetermined range of pulse widths associated with normal tape operation. The range is variable as a function of the rotational frequency of the take-up reel and is updated periodically to reflect changes in the diameter of the take-up reel as the tape plays. If the pulse width of the output signal falls outside of the predetermined range, it denotes an aberrant tape feeding condition.
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Carlson Karen M.
Miller Kenneth C.
Tarpley, Jr. Gerald W.
Ford Motor Company
May Roger L.
Mollon Mark L.
Nguyen John Q.
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