Multilevel optical recording arrangement

Details Multilevel optical recording arrangement Multilevel optical recording arrangement

1990-05-10

1992-09-15

Canney, Vincent P.

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal gain processing

G11B 502

Patent

active

051483351

ABSTRACT:
When information is recorded by emitting a laser beam from a laser beam source, focusing the laser beam to irradiate a recording layer of an information recording medium, and changing the optical characteristics of the irradiated portion of the information recording medium, an information signal is converted by a recording signal generator into a multilevel recording signal, and the output power of the laser beam to irradiate the recording layer of the recording medium is changed by a modulating unit in a multilevel manner in accordance with the recording signal. Therefore, a portion having different optical characteristics from those of a portion not irradiated with the laser beam is formed in the recording layer.

REFERENCES:
patent: 3946367 (1976-03-01), Wohlmut et al.
patent: 4090031 (1978-05-01), Russell
patent: 4152726 (1979-05-01), Kojima et al.
patent: 4375096 (1983-02-01), Gorog et al.
patent: 4426693 (1984-01-01), Satoh et al.
patent: 4467383 (1984-08-01), Ohta et al.
patent: 4525822 (1985-06-01), Nishimura
patent: 4574366 (1986-03-01), Potember et al.
patent: 4612587 (1986-09-01), Kaneko et al.
patent: 4701609 (1987-10-01), Koishi et al.
patent: 4711815 (1987-12-01), Yoshike
patent: 4740943 (1988-04-01), Davidson et al.
patent: 4771347 (1988-09-01), Horimai et al.
patent: 4773060 (1988-09-01), Shimada et al.
Tseng, S. C., IBM TDB, "Encoding Schemes for Video Disks", vol. 24, No. 3, Aug. 1981.

Affiliated with

Also associated with

Rating

Multilevel optical recording arrangement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multilevel optical recording arrangement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multilevel optical recording arrangement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-741479