APPARATUS FOR ADJUSTING SIGNAL LEVELS DERIVED FROM AN...

Details APPARATUS FOR ADJUSTING SIGNAL LEVELS DERIVED FROM AN... APPARATUS FOR ADJUSTING SIGNAL LEVELS DERIVED FROM AN...

2005-10-11

2005-10-11

Patel, Gautam R. (Department: 2655)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S124140, C369S124120, C369S053230

Reexamination Certificate

active

06954418

ABSTRACT:
A plurality of light receiving detectors receive a plurality of segments of a beam returning from an optical disc when a reading beam of light is radiated to the optical disc. An optical pickup assembly produces a plurality of signals from the beam segments in accordance with, for instance, optical intensities of the beam segments. A level adjusting circuit adjusts signal levels of these signals such that each of the signal levels of the signals becomes equal to a reference level. The reference level is determined from at least one of the signal levels of the received beam segments.

REFERENCES:
patent: 3832066 (1974-08-01), Cornsweet
patent: 4980773 (1990-12-01), Suda et al.
patent: 4998234 (1991-03-01), Rees et al.
patent: 5293569 (1994-03-01), Koyama
patent: 5339302 (1994-08-01), Takahashi et al.
patent: 6172560 (2001-01-01), Yamashita et al.
patent: 6424609 (2002-07-01), Masakado
patent: 6563773 (2003-05-01), Yanagisawa et al.
patent: 2000-132835 (2000-05-01), None

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