Tone arm device

Details Tone arm device Tone arm device

1982-08-25

1984-10-16

Phillips, Charles E.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Specified detail of transducer assembly support structure

369 56, G11B 310

Patent

active

044778937

ABSTRACT:
A tone arm device for a turntable in which the tone arm is mounted upon an inner movable member rotatably supported on an outer movable member freely rotatable with respect thereto. The rotational position of the inner movable member and hence the tone arm is detected as is the rotational position of the outer movable member. Control means operates in response to the signals representing the rotational positions of the inner and outer movable members to produce a control signal which is used to drive a magnetic actuator which causes the outer movable member to rotate so as to track the rotational position of the inner movable member.

REFERENCES:
patent: 2587970 (1952-03-01), Courtis et al.
patent: 4171817 (1979-10-01), Iyeta

Affiliated with

Also associated with

Rating

Tone arm device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tone arm device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tone arm device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1948460