Information recording medium having pair of electrodes

Dynamic information storage or retrieval – Storage medium structure – Electrical track structure

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C369S126000

Reexamination Certificate

active

10988548

ABSTRACT:
Disclosed herewith is a method for enabling fast and high density recording of information. A voltage is applied to a recording layer formed between a pair of electrodes. The distance between the pair of electrodes is set wider at one of land and groove areas of a subject optical disk and narrower at the other or the distance is set so that light absorption occurs only in either of the land and groove areas. The optical disk is also provided with a layer of which light absorption spectrum changes according to the application of an electric current, thereby absorbing the light. The new layer may be the recording layer itself or a layer adjacent to the recording layer. Because a heat generates only from a small area of the optical disk at the time of recording, the disk can be turned rapidly and permissively to the auto focusing and tracking offsets, thereby enabling fast and high density recording. The disk can thus be formed with easily selectable multiple layers.

REFERENCES:
patent: 3986771 (1976-10-01), Tsukada
patent: 3989530 (1976-11-01), Robillard
patent: 4075610 (1978-02-01), Crandall et al.
patent: 4324622 (1982-04-01), Deb
patent: 4500174 (1985-02-01), Conner
patent: 4701880 (1987-10-01), Ichihara
patent: 4773060 (1988-09-01), Shimada et al.
patent: 4832456 (1989-05-01), Yamazaki et al.
patent: 4842381 (1989-06-01), Green
patent: 4945515 (1990-07-01), Ooumi et al.
patent: 5279932 (1994-01-01), Miyasaka et al.
patent: 5430705 (1995-07-01), Takanashi et al.
patent: 5629920 (1997-05-01), Sakano et al.
patent: 5717626 (1998-02-01), Aoki et al.
patent: 5903296 (1999-05-01), Shimizu et al.
patent: 6821596 (2004-11-01), Terao et al.
patent: 7203152 (2007-04-01), Van Der Mark et al.
patent: 7263053 (2007-08-01), Terao et al.
patent: 2005/0047309 (2005-03-01), Terao et al.
patent: 2005/0052983 (2005-03-01), Vincent et al.
patent: 2006/0140100 (2006-06-01), Wilderbeek et al.
patent: 2007/0086316 (2007-04-01), Hirotsune et al.
patent: 2007/0247999 (2007-10-01), Mukoh et al.
patent: 60-117431 (1985-06-01), None
patent: 63-122032 (1986-11-01), None
patent: 04-319545 (1991-04-01), None
patent: 10-260432 (1997-03-01), None
patent: 11-185288 (1997-12-01), None
patent: 2001-344807 (2000-06-01), None
M. Terao, H. Yamamoto, and E. Maruyama, “Highly Sensitive Amorphous Optical Memory”, 1973, Supplement to the Journal of the Japan Society of Applied Physics, vol. 42, p. 233-238.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Information recording medium having pair of electrodes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Information recording medium having pair of electrodes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Information recording medium having pair of electrodes will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3951380

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.