Optical disc recording apparatus and method of forming an...

Details Optical disc recording apparatus and method of forming an... Optical disc recording apparatus and method of forming an...

2006-04-26

2008-12-16

Young, Wayne (Department: 2627)

Dynamic information storage or retrieval

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

Mechanism control by the control signal

C369S053290

Reexamination Certificate

active

07466637

ABSTRACT:
In a case where an image of a density that is uniform over a substantially whole area of an optical disc (200) is to be formed, a servo circuit (138) controls the rotation speed of a spindle motor (130) to be constant, and an ALPC circuit (162) controls the current level of a drive signal Li so that the laser power is constant. In this case, a main control section (170) sets the movement distance of an optical pickup (100) to be larger in the inner peripheral side where the line width of the image is larger, and that of the optical pickup (100) to be smaller in the outer peripheral side where the line width is smaller. The main control section (170) sends to a the motor driver (142) instructions for moving the optical pickup (100) by a movement distance which is determined on the basis of the setting.

REFERENCES:
patent: 4410968 (1983-10-01), Frohbach et al.
patent: 4961123 (1990-10-01), Williams et al.
patent: 5398231 (1995-03-01), Shin
patent: 5566145 (1996-10-01), Sasaki
patent: 5586099 (1996-12-01), Finkelstein et al.
patent: 5768245 (1998-06-01), Maeda et al.
patent: 5780982 (1998-07-01), Tagiri
patent: 5956295 (1999-09-01), Yamakawa et al.
patent: RE36590 (2000-02-01), Yanagi
patent: 6229785 (2001-05-01), Kitaura et al.
patent: 6762983 (2004-07-01), Andoh
patent: 2002/0181365 (2002-12-01), Nakajo
patent: 2002/0191517 (2002-12-01), Honda et al.
patent: 2001-56937 (2001-02-01), None
Office Action, Chinese Patent Office, Nov. 26, 2004 (English Translation).

Affiliated with

Also associated with

Rating

Optical disc recording apparatus and method of forming an... 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 disc recording apparatus and method of forming an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical disc recording apparatus and method of forming an... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4032287