Method for controlling output power of a pick-up head using...

Details Method for controlling output power of a pick-up head using... Method for controlling output power of a pick-up head using...

2006-07-04

2006-07-04

Korzuch, William (Department: 2652)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S047500

Reexamination Certificate

active

07072273

ABSTRACT:
A method for automatically controlling output power of a pick-up head. When output power of a pick-up head is to be changed, a first switch is utilized to connect a first input port of a comparator circuit to a supply source, and a second switch is utilized to connect a first signal source to a driver circuit such that the driver circuit will control the output power according to a first signal. When voltage drop between the first input port and a output port of the comparator circuit stabilizes, the first switch is utilized to connect the first input port to a sensor, and the second switch is utilized to connect the output port and the driver circuit such that the driver circuit will control the output power according to a comparative signal.

REFERENCES:
patent: 4845720 (1989-07-01), Koishi et al.
patent: 4935915 (1990-06-01), Fujiwara et al.
patent: 6304586 (2001-10-01), Pease et al.
patent: 6728178 (2004-04-01), Koishi et al.
patent: 2004/0057663 (2004-03-01), Sato et al.

Affiliated with

Also associated with

Rating

Method for controlling output power of a pick-up head using... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for controlling output power of a pick-up head using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for controlling output power of a pick-up head using... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3605875