Optical information recording/reproducing device which simultane

Details Optical information recording/reproducing device which simultane Optical information recording/reproducing device which simultane

1993-08-16

1995-08-01

Sugarman, Scott J.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369120, 369100, G11B 708

Patent

active

054385636

ABSTRACT:
An optical information recording/reproducing device is constituted of a focus control circuit connected to a controller, a tracking control circuit, a data processing circuit, and a card feed control circuit. The data processing circuit includes a plurality of I/V converters for converting signals received by a plurality of signal reproducing light receiving elements arranged to an optical detector into current/voltage, and a plurality of binary circuits each for converting the output from the I/V converters into a binary signal in a reference level. The data processing circuit includes a selector for selecting at least two outputs of a plurality of binary circuits. The data processing circuit includes a plurality of bit-clock producing circuits and a plurality of demodulation circuits. The bit-clock producing circuits produce bit clocks based on binary signals originated from selectors and a plurality of binary circuits which are not connected to the selectors. The demodulation circuits executes sampling the two binary signals in accordance with bit clocks and executes data demodulation using the sampled results. The data processing circuit includes a plurality of memories storing demodulated results from the plurality of demodulation circuits.

REFERENCES:
patent: 4730293 (1988-03-01), Pierce et al.
patent: 5177724 (1993-01-01), Gelbart
patent: 5267226 (1993-11-01), Matsuoka et al.
patent: 5293365 (1994-03-01), Rokutan
patent: 5315575 (1994-05-01), Akatsuka

Affiliated with

Also associated with

Rating

Optical information recording/reproducing device which simultane 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 recording/reproducing device which simultane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical information recording/reproducing device which simultane will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-738323