Motor control circuit of data reproduction apparatus

Details Motor control circuit of data reproduction apparatus Motor control circuit of data reproduction apparatus

1983-03-10

1986-03-11

Richardson, Robert L.

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

369 59, 369240, G11B 1700

Patent

active

045758352

ABSTRACT:
The invention relates to a motor control circuit of a data reproduction apparatus, which drives a disk motor to reproduce a data signal recorded together with a sync signal on a recording medium so as to control the disk motor in accordance with a reproduced sync signal. The frequency and phase components of the reproduced sync signal are detected, and first and second motor control signals are produced in accordance with frequency and phase detection signals, respectively. A control circuit detects whether or not the frequency detection signal falls within a predetermined range. If it is determined that the frequency detection signal does not fall within the predetermined range, the second motor control signal is kept at a predetermined value.

REFERENCES:
patent: 4338683 (1982-07-01), Furukawa et al.

Affiliated with

Also associated with

Rating

Motor control circuit of data reproduction apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Motor control circuit of data reproduction apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motor control circuit of data reproduction apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2194573