Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Reexamination Certificate
2011-01-25
2011-01-25
Negrón, Daniell L (Department: 2627)
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
C369S275300
Reexamination Certificate
active
07876667
ABSTRACT:
An optical disk medium in which high density recording/reproducing is possible, an information recording method and an information reproducing method using it are provided. A pit composed of a phase change material and a recording film different from it are provided on an optical disk. The phase change pit has a pattern of a single frequency. A mark having a size on the same level as the phase change pit can be formed by melting a single phase change pit while recording and controlling the optical absorbance and the temperature of the recording film at the region. A single phase change pit is molten while reproducing. Since the optical characteristics of the molten region are different from the optical characteristics of other regions, only data at the molten region can be reproduced by a super-resolution effect.
REFERENCES:
patent: 4893299 (1990-01-01), Humberstone et al.
patent: 5095428 (1992-03-01), Walker et al.
patent: 5470628 (1995-11-01), Tominaga et al.
patent: 5764619 (1998-06-01), Nishiuchi et al.
patent: 5882758 (1999-03-01), Terada et al.
patent: 2002/0054554 (2002-05-01), Yamanaka
patent: 2003/0123351 (2003-07-01), Sawabe et al.
patent: 2004/0174797 (2004-09-01), Tsukagoshi
patent: 2004/0190432 (2004-09-01), Ichihara et al.
patent: 2005/0106508 (2005-05-01), Shintani et al.
patent: 5-159357 (1993-06-01), None
patent: 5-282674 (1993-10-01), None
patent: 7-244870 (1995-09-01), None
Masataka Shinoda et al., “High-Density Near-Field Readout Over 50 GB Capacity Using Solid Immersion Lens with High Refractive Index”, Japanese Journal of Applied Physics, vol. 42 (2003) pp. 1101-1104, Part 1, No. 2B, Feb. 2003.
Kouichi Yasuda et al., “Premastered Optical Disk by Superresolution”, Japanese Journal of Applied Physics, vol. 32 (1993); pp. 5210-5213, Part 1,m No. 11B, Nov. 1993.
Masashi Kuwahara et al., “Thermal Origin of Readout Mechanism of Light-Scattering Super-Resolution Near Field Structure Disk”, Japanese Journal of Applied Physics, vol. 43, No. 1A/B, 2004, pp. L8-L10.
Jia-Reuy Liu et al., “Erasable Phase Change Disks with Super Resolution Capability by Pulse-Readout”, Japanese Journal of Applied Physics, vol. 37 (1998) pp. L516-L518, Part 2, No. 5A, May 1, 1998.
Anzai Yumiko
Hirotsune Akemi
Kudo Hiromi
Shintani Toshimichi
Antonelli, Terry Stout & Kraus, LLP.
Hitachi , Ltd.
Lee Nicholas
Negrón Daniell L
LandOfFree
Optical information recording medium, and information... 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 medium, and information..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical information recording medium, and information... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2722640