Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Mechanism control by the control signal
Reexamination Certificate
2011-06-14
2011-06-14
Edun, Muhammad N (Department: 2627)
Dynamic information storage or retrieval
Control of storage or retrieval operation by a control...
Mechanism control by the control signal
C369S047500, C369S053200, C369S053410, C369S103000
Reexamination Certificate
active
07961572
ABSTRACT:
The present techniques provide methods and systems reading a data bit of interest on an optical data disc with a reduced error rate. The data bit estimation may be improved by reducing deterministic noise resulting from an optical reader system and/or the optical data disc. The reader may adjust the position of a detector to detect light scattered from the disc based on parameters of known noise sources. In one embodiment, the detector may be moved vertically in relation to the data bit of interest on the optical disc. In another embodiment, more than one detector may be used to detect light scattered from a data bit of interest. In embodiments, the positioning of the detector(s) may be based on system or disc parameters, and the detected scatterings may provide a data reading, improved for an optical return from a present micro-hologram.
REFERENCES:
patent: 5450218 (1995-09-01), Heanue et al.
patent: 5510912 (1996-04-01), Blaum et al.
patent: 5727226 (1998-03-01), Blaum et al.
patent: 5808998 (1998-09-01), Curtis et al.
patent: 6175317 (2001-01-01), Ordentlich et al.
patent: 6549664 (2003-04-01), Daiber et al.
patent: 6563779 (2003-05-01), McDonald et al.
patent: 6711711 (2004-03-01), Hwang
patent: 6738322 (2004-05-01), Amble et al.
patent: 6889907 (2005-05-01), Roh
patent: 7020054 (2006-03-01), Kadlec et al.
patent: 7085210 (2006-08-01), Ogawa
patent: 7388695 (2008-06-01), Lawrence et al.
patent: 2005/0136333 (2005-06-01), Lawrence et al.
patent: 2006/0073392 (2006-04-01), Erben et al.
patent: 2006/0078802 (2006-04-01), Chan et al.
patent: 2006/0203693 (2006-09-01), Aoyama
patent: 2007/0097469 (2007-05-01), Erben et al.
patent: 2007/0146835 (2007-06-01), Erben et al.
patent: 2008/0055686 (2008-03-01), Erben et al.
patent: 2008/0144145 (2008-06-01), Boden et al.
patent: 2008/0144146 (2008-06-01), Boden et al.
Freeman et al.; Robust Focus and Tracking Detection for Holographic Digital Versatile Disc Optical Pickup-Head Modules, Jpn. J. Appl. Phys. vol. 38 (1999), pp. 1755-1760, Part 1, No. 3B, Mar. 1999.
Steinbuch et al.; Limits of Implementation: A CD Player Control Case Study, Proceedings of the American Control Conference, Blatimore, Maryland, Jun. 1994, pp. 3209-3213, Article No. FP2-5:00.
U.S. Appl. No. 12/347,178, filed Dec. 31, 2008, Victor Petrovich Ostroverkhov.
U.S. Appl. No. 12/336,399, filed Dec. 16, 2008, John Erik Hershey et al.
U.S. Appl. No. 12/336,414, filed Dec. 16, 2008, John Anderson Fergus Ross et al.
U.S. Appl. No. 12/336,457, filed Dec. 17, 2008, John Anderson Fergus Ross et al.
U.S. Appl. No. 12/338,828, filed Dec. 18, 2008, John Anderson Fergus Ross et al.
U.S. Appl. No. 12/338,841, filed Dec. 18, 2008, John Anderson Fergus Ross et al.
U.S. Appl. No. 12/342,794, filed Dec. 23, 2008, John Anderson Fergus Ross et al.
U.S. Appl. No. 12/343,204, filed Dec. 23, 2008, Ruediger Kusch.
U.S. Appl. No. 12/346,279, filed Dec. 30, 2008, Victor Petrovich Ostroverkhov.
U.S. Appl. No. 12/346,378, filed Dec. 30, 2008, Xiaolei Shi.
U.S. Appl. No. 12/347,211, filed Dec. 31, 2008, Xiaolei Shi et al.
Fergus Ross John Anderson
Graf John Frederick
Hershey John Erik
Lawrence Brian Lee
Ostroverkhov Victor Petrovich
Edun Muhammad N
Fletcher Yoder
General Electric Company
LandOfFree
System and method for reading micro-holograms with reduced... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for reading micro-holograms with reduced..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for reading micro-holograms with reduced... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2681735