Optical disk reproducing apparatus and method for...

Details Optical disk reproducing apparatus and method for... Optical disk reproducing apparatus and method for...

2007-01-16

2007-01-16

Patel, Gautam R. (Department: 2627)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C386S349000

Reexamination Certificate

active

10699345

ABSTRACT:
In a process of braking an spindle motor, a frequency of a read clock signal synchronized with an RF signal output from an RF amplifier is measured as a first frequency by a braking control circuit. A brake is then applied to the spindle motor for a predetermined time. Thereafter, the frequency of the read clock signal is measured as a second frequency. Next, the braking time is calculated on the basis of: a frequency difference obtained by subtracting the second frequency from the first frequency; the first frequency; and a measuring time from the timing when the first frequency is measured to the timing when the second frequency is measured.

REFERENCES:
patent: 4737700 (1988-04-01), Doelves
patent: 5311107 (1994-05-01), Shimegi et al.
patent: 5990648 (1999-11-01), Kumar et al.
patent: 6262555 (2001-07-01), Hammond et al.
patent: 9-130824 (1997-05-01), None
patent: 9-212998 (1997-08-01), None

Affiliated with

Also associated with

Rating

Optical disk reproducing apparatus and method for... 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 reproducing apparatus and method for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical disk reproducing apparatus and method for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3801045