Rotary body drive device

Details Rotary body drive device Rotary body drive device

1987-08-21

1989-08-08

Shoop, Jr., William M.

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

318603, 318608, 318341, 360 70, 360 7303, 388813, 388923, 388828, H04N 593

Patent

active

048556548

ABSTRACT:
A rotary body drive device for controlling rotation of a motor on the basis of the phase difference between a periodic signal produced in accompaniment with rotation of the motor and a reference clock signal so that their phase relationship becomes a prescribed one. When the phase difference between both signals detected in a certain state is largely different from that detected in the preceding time, a correction is given to the phase difference of both signals detected in the aforesaid certain state, so that the rotation of said motor is controlled in accordance with the corrected phase difference.

REFERENCES:
patent: 3503058 (1970-03-01), Ault et al.
patent: 3934269 (1976-01-01), Fujita et al.
patent: 4003090 (1977-01-01), Beck
patent: 4127881 (1978-11-01), Wakami et al.
patent: 4271382 (1981-06-01), Maeda et al.
patent: 4301395 (1981-11-01), Furuhata et al.
patent: 4307417 (1981-12-01), Tokuyama
patent: 4316143 (1982-02-01), Castle
patent: 4338683 (1982-07-01), Furukawa et al.
patent: 4355266 (1982-10-01), Pearson
patent: 4386300 (1983-05-01), Ogawa
patent: 4432021 (1984-02-01), Kaneko
patent: 4441061 (1984-04-01), Yoshida et al.
patent: 4484235 (1984-11-01), Yokobori et al.
patent: 4498034 (1985-02-01), Shirakawa
patent: 4500822 (1985-02-01), Tajima et al.
patent: 4506202 (1985-03-01), Tajima et al.
patent: 4539606 (1985-09-01), Itoh
patent: 4542423 (1985-09-01), Kotake et al.
patent: 4543516 (1985-09-01), Kobori et al.
patent: 4562394 (1985-12-01), Itoh
patent: 4568986 (1986-02-01), Furuhata et al.
patent: 4599545 (1986-07-01), Moriki et al.
patent: 4603412 (1986-07-01), Yamazaki
patent: 4605976 (1986-08-01), Ito et al.
patent: 4613799 (1986-09-01), Sumi
patent: 4623939 (1986-11-01), Machida et al.
patent: 4710825 (1987-12-01), Okita et al.

Affiliated with

Also associated with

Rating

Rotary body drive 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 Rotary body drive device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary body drive device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-908155