Video disc stylus position sensor system

Details Video disc stylus position sensor system Video disc stylus position sensor system

1980-01-28

1982-04-27

Phillips, Charles E.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Having power driven transducer assembly

369 43, G11B 1706

Patent

active

043274340

ABSTRACT:
A stylus position sensor for a video disc player apparatus. An electrode secured in fixed relation to a movable stylus is disposed between first and second electrodes to form first and second variable capacitors therewith. The capacitance of the variable capacitors change in accordance with the motion of the stylus related electrode between the first and second electrodes. A time varying signal is applied through fixed impedances to the first and second electrodes, the amplitude of the signal being modulated by voltage variable impedances connected between the first and second electrodes and a point of fixed potential. The modulated signals at said first and second electrodes are coupled to the stylus related electrode and the time average of the summed signal is indicative of the position of the stylus related electrode and thereby the stylus with respect to the first and second electrodes.

REFERENCES:
patent: 2915315 (1959-12-01), Rabinow
patent: 3572724 (1971-03-01), Rabinow
patent: 4064539 (1977-12-01), Lewiner et al.
patent: 4157576 (1979-06-01), Hack et al.
patent: 4167762 (1979-09-01), Hashizaki et al.
patent: 4280023 (1981-07-01), Christopher

Affiliated with

Also associated with

Rating

Video disc stylus position sensor system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Video disc stylus position sensor system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video disc stylus position sensor system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2201145