Recording medium with an optical waveguide and player for playin

Details Recording medium with an optical waveguide and player for playin Recording medium with an optical waveguide and player for playin

1991-03-06

1993-06-08

Chin, Tommy P.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

3692751, 369111, 369103, G11B 700

Patent

active

052185940

ABSTRACT:
An optical waveguide recording medium has optical waveguides on which minute refractive-index discontinuous portions for generating multiple reflected waveguide lights of different amplitudes and phases can be aligned in accordance with information to be recorded. A recorded-information reproducing apparatus splits a light beam from a light-emitting element into two, guides one of the split beams to the optical waveguides, and causes interference between a signal light reflected after modulation of the amplitude and phase of part of the guided beams and a light acquired by applying a frequency shift to the other beam to obtain an optical heterodyne output, thereby reproducing information recorded as a time-series signal waveform.

REFERENCES:
patent: 3728521 (1973-04-01), Borough et al.
patent: 4833561 (1989-05-01), Sunagawa et al.
patent: 4876680 (1989-10-01), Misawa et al.
patent: 4937808 (1990-06-01), Shimada et al.
patent: 4945525 (1990-07-01), Yamamoto et al.
patent: 4971414 (1990-11-01), Funato et al.
patent: 5064258 (1991-11-01), Inokuchi et al.
patent: 5065390 (1991-11-01), Miyauchi et al.

Affiliated with

Also associated with

Rating

Recording medium with an optical waveguide and player for playin does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Recording medium with an optical waveguide and player for playin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recording medium with an optical waveguide and player for playin will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1947457