Recorded-signal position detecting circuit

Details Recorded-signal position detecting circuit Recorded-signal position detecting circuit

1980-03-26

1982-08-10

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

360 722, 360 744, G11B 1552, G11B 2728

Patent

active

043440959

ABSTRACT:
There is provided a recorded-signal position detecting circuit which records a detection signal, whose frequency is much lower than that of an aural signal, in a tape during the recording mode in a manner to mix it upon the aural signal and reproduces the detection signal via a filter permitting the passage therethrough of this signal only, thereby to detect the position of the recorded detection signal. In this circuit, when the speed of the tape during the recording mode varies, the frequency of the detection signal varies with a change in such tape speed.

REFERENCES:
patent: 2977422 (1961-03-01), Pear, Jr.
patent: 3717856 (1973-02-01), Kubo et al.
patent: 3846831 (1974-11-01), Johnson, Jr.
patent: 3851116 (1974-11-01), Cannon
patent: 4000518 (1976-12-01), Stearns
patent: 4193100 (1980-03-01), Bagley et al.
patent: 4237498 (1980-12-01), Van Eijck et al.

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