JPS6399342U - - Google Patents

Description

[Brief explanation of the drawing]

1 to 5 show one embodiment of the present invention, in which FIG. 1 is a block diagram showing the overall schematic configuration, FIG. 2 is a circuit configuration diagram showing details of the main parts in FIG. 1, Figure 3 is a timing chart for explaining the operation, Figure 4 is a diagram showing ATF error voltage S curve characteristics, Figure 5 is a diagram showing the recording area of subcode data, and Figure 6 is a conventional tracking control circuit. Block diagram showing the schematic configuration of
6 is a timing chart for explaining the operation of FIG. 6, FIG. 8 is a diagram showing the pilot signal recording pattern of the magnetic tape, FIG. 9 is a diagram showing the relationship between the head and the recording track, and FIG. FIG. 6 is a diagram showing a recording area of subcode data in FIG. 6; 1...Reproduction amplifier, 2...Band pass filter, 3...Absolute value circuit, 4...Low pass filter,
5... Clamp circuit, 6... Sample hold circuit, 7... Adder circuit, 11... Tri-state buffer, A1 to A3... Operational amplifier, SW1, S
W2...Switching element.

Claims (1)

[Scope of utility model registration request] The recording signal is recorded obliquely on the track by the rotating head without guard hand, and a pilot signal for tracking is recorded on a part of the track, and most of the recording positions of this pilot signal are recorded on three consecutive lines. In a reproducing apparatus for reproducing a magnetic tape recorded in such a way that the tracks do not overlap each other when viewed in a direction orthogonal to the head scanning direction, using a rotary head having a gap width wider than the recording track width, Error signal output means detects the pilot signal from the signal and outputs an error signal for tracking control; and when the after-recording operation mode is specified, an offset signal is generated for the error signal output from the error signal output means. 1. A tracking control circuit comprising: means for advancing the phase of tracking control by adding the above-mentioned numbers, and performing tracking control so that the rotary head does not overlap a recorded track.