Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the record
Patent
1978-10-10
1980-07-29
Canney, Vincent P.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the record
360 961, 360132, G11B 1546, G11B 1500
Patent
active
042153778
ABSTRACT:
A multi-speed tape cassette system includes a tape cassette having a removable tab centrally located over a cavity disposed on the leading edge thereof, and a tape player operable to reproduce information contained on the tape cassette at one speed if the cassette tab is in place, and at another speed if the cassette tab is removed. The tape player includes a receptacle for receiving and holding the cassette, a two-position control switch normally biased to a second position, and operable to a first position when the tape cassette including the tab is placed in the receptacle. The control switch remains in the second position when the cassette with the tab removed is placed in the receptacle. The tape player also includes apparatus responsive to the control switch being in the first position for operating the tape cassette at the normal speed, and responsive to the control switch being in the second position for operating the tape cassette at a lower speed. The control switch includes a plunger element positioned at one side of the receptacle to protrude into the cassette cavity wnen the tab is removed and the cassette is placed in the receptacle. When the cassette tab is not removed, the tab forces the plunger into the receptacle wall as the cassette is being placed in the receptacle.
REFERENCES:
patent: 3685171 (1972-08-01), Kosaka
patent: 3742320 (1973-06-01), Ban
patent: 4057839 (1977-11-01), Banks
patent: 4090224 (1978-05-01), Sato
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