Signal generating circuit and optical pickup device provided...

Details Signal generating circuit and optical pickup device provided... Signal generating circuit and optical pickup device provided...

2008-07-29

2008-07-29

Dinh, Tan X (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S044290, C250S205000, C250S2140LS

Reexamination Certificate

active

07406018

ABSTRACT:
A signal generating circuit of the invention includes a current polarity switch circuit that receives an output current of a light-sensitive element and outputs a current of which the direction the polarity switch circuit keeps constant regardless of the direction of the received current, a current-to-voltage conversion circuit that converts the current outputted from the current polarity switch circuit into a voltage, and a signal processing circuit that receives the voltage outputted from the current-voltage conversion circuit to generate a signal based on the received voltage. Thus, the signal based on the received current signal can be generated regardless of the direction of the received current signal.

REFERENCES:
patent: 5981936 (1999-11-01), Fujiie
patent: 57-164609 (1982-10-01), None
patent: 64-050603 (1989-02-01), None
patent: 04-354408 (1992-12-01), None
patent: 04354408 (1992-12-01), None
patent: 09-098033 (1997-04-01), None
patent: 09-252224 (1997-09-01), None

Affiliated with

Also associated with

Rating

Signal generating circuit and optical pickup device provided... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Signal generating circuit and optical pickup device provided..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal generating circuit and optical pickup device provided... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2749405