Optical disk apparatus capable of using a ROM compact disk or a

Details Optical disk apparatus capable of using a ROM compact disk or a Optical disk apparatus capable of using a ROM compact disk or a

1996-09-23

1998-02-24

Huber, Paul W.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 58, G11B 700, G11B 390

Patent

active

057217173

ABSTRACT:
A CD and an MO cartridge are accessed by a pickup of the same optical system, thereby allowing 4-split photodetectors to receive a medium return light to obtain a tracking error detection signal. Upon recording and reproduction of the MO cartridge, a tracking error detecting circuit for MO detects a first tracking error signal by a push-pull method on the basis of light reception signals obtained from the pickup. Upon reproduction of the CD, a tracking error detecting circuit for CD detects a second tracking error signal by a heterodyne method on the basis of the light reception signals obtained from the pickup.

REFERENCES:
patent: 4890273 (1989-12-01), Takeuchi et al.
patent: 5166921 (1992-11-01), Matsui
patent: 5289451 (1994-02-01), Ashinuma et al.
patent: 5363356 (1994-11-01), Tanaka et al.
patent: 5508987 (1996-04-01), Matsunaga et al.
patent: 5559769 (1996-09-01), Ando et al.

Affiliated with

Also associated with

Rating

Optical disk apparatus capable of using a ROM compact disk or a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical disk apparatus capable of using a ROM compact disk or a , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical disk apparatus capable of using a ROM compact disk or a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1879148