Dynamic magnetic information storage or retrieval – Miscellaneous
Patent
1980-06-20
1982-08-17
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Miscellaneous
G11B 5008
Patent
active
043452876
ABSTRACT:
A word line number count/display device for a tape recorder for dictation comprises a magnetic head which detects a second and a third cue signals from a magnetic recording tape driven in either one or the other direction and produces detection signals corresponding to both cue signals. The detection signals are received by a time measuring circuit which measures the period of time elapsed from the reception of the detection signal corresponding to either one of the cue signals till the reception of the detection signal corresponding to the other cue signal to produce a time period signal corresponding to the length of the measured time period. The time period signals are divided by a predetermined reference value corresponding to a predetermined period of time to produce a quotient signal. The quotient signal is multiplied by a predetermined value obtained by dividing the number of words spoken during the predetermined period of time by an average number of words contained in one line of a typing paper used by a typist to produce a product signal. The product signal is changed to a digital signal by a decoder and is transferred to a digital display device for displaying digital information corresponding to the digital signal.
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patent: 4217615 (1980-08-01), Suzuki
Olympus Optical Co,. Ltd.
Tupper Robert S.
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