System for detecting the tracking error in optical readers and r

Details System for detecting the tracking error in optical readers and r System for detecting the tracking error in optical readers and r

1977-12-20

1979-09-25

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

358128, G01J 120

Patent

active

041692276

ABSTRACT:
The invention relates to the detection of the tracking error of a track using a process of periodic excursion of a reading beam in a direction which forms an angle with the direction of exploration of the track. The detection system comprises a mirror deflection by a bar vibrating in a flexural mode which is clamped to a base. Two plates of piezoelectric elements mechanically coupled with said vibrating bar are provided to excite the vibrating plate and to supply a reference signal in constant phase relation with the movement of the vibrating bar.

REFERENCES:
patent: 4063287 (1977-12-01), Van Rosmalen
patent: 4064539 (1977-12-01), Lewiner et al.
patent: 4074312 (1978-02-01), Van Rosmalen

Affiliated with

Also associated with

Rating

System for detecting the tracking error in optical readers and r does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for detecting the tracking error in optical readers and r, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for detecting the tracking error in optical readers and r will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1986717