JPS63114427U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a block diagram of the tracking control circuit according to the present invention, Fig. 2 is a block diagram of the error signal generation circuit, Fig. 3 is a diagram explaining the recording state of the pilot signal, and Fig. 4 shows the change in the error signal. FIG. 5 is a block diagram of the conventional circuit, and FIG. 6 is a graph explaining the relationship between the reference signal and tape speed. 1...Error signal generation circuit, 2...Tape speed control system, 3...Tape speed correction circuit.

Claims (1)

[Scope of utility model registration request] ATF that indicates track deviation based on the pilot signal reproduced from each track of the magnetic tape
Equipped with a circuit 1 for generating an error signal and a tape speed control system 2 for feedback controlling the rotational speed of a tape transporting motor, the rotational speed of the motor is adjusted with respect to a reference signal that defines the rotational speed of the tape transporting motor. In a tracking control circuit that feeds back a speed detection signal representing the tape speed, adds the ATF error signal to the feedback signal, and controls the tape speed according to the level of the ATF error signal, the reference signal is used for tape speed correction. It is connected to the tape speed control system 2 through the circuit 2, and the correction circuit 2
uses the ATF error signal as an input signal to create a correction signal that becomes zero when the track deviation is zero and changes according to the level of the ATF error signal, and this correction signal should be connected to the tape speed control system 2. A tracking control circuit for a tape recorder, characterized in that the tracking control circuit is added to a reference signal.