Optical information reproducing apparatus with a threshold level

Details Optical information reproducing apparatus with a threshold level Optical information reproducing apparatus with a threshold level

1995-11-22

1997-08-26

Epps, Georgia Y.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 59, 369107, 369 13, G11B 700, G11B 2010

Patent

active

056617135

ABSTRACT:
A level sensor circuit compares a threshold level from a threshold value generator circuit with that of an input sampling signal to create a binarized pulsated signal. A change point detector circuit detects a change point of binary information indicated by the input pulsates signal or positions before and after the change point and thereby sends a change point detection signal(s) to a threshold level generator circuit. The threshold level generator circuit extracts from the sampling signals only ones at points of time when the change point detection signal is inputted from the change point detector circuit and then averages the extracted sampling signals with respect to time to generate a threshold level.

REFERENCES:
patent: 5101395 (1992-03-01), Cardero et al.
patent: 5313450 (1994-05-01), Nishiwaki et al.
patent: 5359586 (1994-10-01), Izumi et al.
patent: 5420484 (1995-05-01), Kawakubo et al.
patent: 5548570 (1996-08-01), Hirajima et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1993186