Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Patent
1992-08-14
1994-08-16
Dzierzynski, Paul M.
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
369103, 359 3, 359 29, 365125, 382 31, G11B 700, G06K 976
Patent
active
053393058
ABSTRACT:
The correlation speed and storage capacity of an optical disk-based correlator is enhanced by employing a thick (several hundred micron) photo- polymeric film (or other thick holographic media) on the disk as the recording media to permit volume holography and angular multiplexing of holograms in each spot on the disk. For example, if 100 holograms are multiplexed at one spot, 100 1-dimensional correlation functions can be read in parallel off of the disk while illuminating it with a single input image. The diffraction of the image beam by the recorded holographic patterns occurs at the holograms in the disk. The full 2-dimensional correlation function for each one of the holograms stored in a given spot on the disk is generated line-by-line a follows: By imaging in the along-track direction of the disk and Fourier transforming in the radial direction of the disk when both recording the template image hologram and presenting the input image to the recorded hologram, disk rotation generates the two-dimensional correlation functions between stored template images and the input image. All correlation functions for holograms angularly multiplexed at a given spot are generated line-by-line and detected in parallel along adjacent line detectors in the off-disk correlation plane.
REFERENCES:
patent: 4449785 (1984-05-01), Huignard et al.
patent: 4550395 (1985-10-01), Carlson
patent: 4837843 (1989-06-01), Owechko
patent: 5038335 (1991-08-01), Miller
patent: 5039182 (1991-08-01), Dube et al.
patent: 5111445 (1992-05-01), Psaltis et al.
patent: 5128693 (1992-07-01), Tatemichi et al.
patent: 5191574 (1993-03-01), Henshaw et al.
patent: 5212572 (1993-05-01), Krantz et al.
Demetri Psaltis et al, "Optical Memory Disks in Optical Information Processing," Applied Optics, vol. 29, No. 14, May 10, 1990, pp. 2038-2057.
Askar Kutanow et al., "Holographic-Disk-Based Optical Neural Network," Optics Letters, vol. 17, No. 13, Jul. 1, 1992.
Demetri Psaltis, Alan Yamamura, and Hsin-Yu Li, "Mass storage for digital optical computers," Proceedings of a conference held Jan. 15-16, 1990, SPIE Critical Reviews of Optical Science and Technology, vol. CR35, pp. 155-165.
Don A. Gregory et al., "Large-memory real-time multichannel multiplexed pattern recognition," (Dec. 1984) Applied Optics, vol. 23, No. 24, p. 4560.
James R. Leger et al., "Hybrid optical processor for pattern recognition and classification using a generalized set of pattern functions," (Jan. 1982), Applied Optics, vol. 21, No. 2, p. 274.
William J. Miceli, "Real Time Signal Processing IX," Proceedings of SPIE, San Diego, Calif., Aug. 21, 1986.
J. T. LaMacchia and D. L. White, "Coded Multiple Exposure Holograms," (Jan. 1968), Applied Optics, vol. 7, No. 1, p. 91.
D. Gabor, "Character Recognition by Holography," (Oct. 1965), Nature, vol. 208, p. 422.
C. N. Kurtz, "Transmittance Characteristics of Surface Diffusers and the Design of Nearly Band-Limited Binary Diffusers," Journal of the Optical Society of America, vol. 62, No. 8, p. 982 (Aug. 1972).
D. L. Staebler et al., "Multiple storage and erasure of fixed holograms in Fe-doped LiNbO.sub.3," Feb. 1975, Applied Physics Letters, vol. 26, No. 4, p. 182.
A. L. Mikaelyan et al., "Increase in the data capacity of holographic disks carrying one-dimensional holograms," (Sep. 1989) Sov. J. Quantum Electron. 19(9), p. 1247.
A. L. Mikaelyan et al., "Holographic disk for data storage," (May 1987) Sov. J. Quantum Electron. 17(5), p. 680.
A. A. Kutanov et al., "Holographic disk with thermo-plastic recording for optical information processing," (Jul. 1991), Optical Computing and Processing, vol. 1, No. 4, p. 315.
Curtis Kevin R.
Psaltis Demetri
Anderson Terry J.
Block Robert B.
Chu Kim-Kwok
Dzierzynski Paul M.
Hoch Jr. Karl J.
LandOfFree
Disk-based optical correlator and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Disk-based optical correlator and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disk-based optical correlator and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-958491