Tracking controlling device using multiple pilot signals in magn

Details Tracking controlling device using multiple pilot signals in magn Tracking controlling device using multiple pilot signals in magn

1987-01-23

1989-02-28

Faber, Alan

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

G11B 15467, G11B 5588

Patent

active

048090964

ABSTRACT:
A tracking controlling device is provided which is suitable for a rotating head helical scanning-type magnetic video signal recording and reproducing apparatus in which pilot signals of a plurality of frequencies are recorded in advance on tracks on a magnetic tape such as to be superimposed on video signals, and the pilot signals are reproduced during reproduction so as to effect tracking control. This tracking controlling device comprises means for separating and detecting two reproducing pilot signals from both tracks adjacent to the track being scanned by the rotating head, a comparator for comparing the magnitude of the reproducing pilot signals from the adjacent tracks and for generating a binary PWM signal in accordance with the magnitude, and controlling means for controlling the rotation of a capstan motor for driving the magnetic tape using the tracking error signal converted into the form of the PWM signal obtained by the output of the comparator. The tracking error signal converted to the PWM signal is capable of directly switching over and controlling the driving circuit for the capstan motor.

REFERENCES:
patent: 4510533 (1985-04-01), Tokuyama
patent: 4573089 (1986-02-01), Maeda et al.
patent: 4636874 (1987-01-01), Hoogendooru et al.
patent: 4636882 (1987-01-01), Edakubo et al.
patent: 4686589 (1987-08-01), Takimoto

Affiliated with

Also associated with

Rating

Tracking controlling device using multiple pilot signals in magn does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tracking controlling device using multiple pilot signals in magn, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tracking controlling device using multiple pilot signals in magn will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1372634