Preprogrammable recording system with automatic warning of time

Details Preprogrammable recording system with automatic warning of time Preprogrammable recording system with automatic warning of time

1979-08-24

1982-07-13

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

360 93, 360132, G11B 2304, G11B 2342

Patent

active

043397760

ABSTRACT:
A recording system for recording signals on a magnetic tape uses a recording apparatus and cassettes, each cassette containing a specific length of magnetic tape, and has a timer for setting time-preprogrammed automatic recordings.
A detection unit determines the maximum time available for recording on a cassette placed in the apparatus and a comparator compares an output signal of the detection unit with a reference quantity which is a measure of the total time required for the preprogrammed automatic recording(s). When this required time exceeds the maximum time available for recording with this cassette, an alarm signal is produced. The cassette has marks which are sensed by the detection unit and which indicate the length of the magnetic tape in the cassette.

REFERENCES:
patent: 3557360 (1971-01-01), Aldridge
patent: 3712559 (1973-01-01), Schwartz
patent: 3723666 (1973-03-01), Ferrari
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patent: 4177488 (1979-12-01), Sakai
patent: 4197561 (1980-04-01), McMullen et al.
patent: 4206483 (1980-06-01), Nakamura

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