Hybrid optical and electronic associative memory

Claim 2

A hybrid optical and electronic associative memory system capable of recalling a stored image when the memory system is provided with a distorted input image which is a partial or distorted version of the stored image, comprising: a hologram including at least one stored image, said stored image comprising a first stored image of a first object, said first stored image being recorded with a first reference beam, said first stored image being a transform of a first real image of said first object; image transforming means for providing a transform of the distorted input image to said hologram, so as to generate a distorted reference beam; means for transforming said distorted reference beam into a correlation image related to said first stored image and distorted input image; and means for enhancing said correlation image, including: an electro-optical thresholding means for thresholding said correlation image and eliminating low level spurious light therein while preserving shift-invariance, said electro-optical thresholding means including an electronic threshold processor for thresholding said correlation image, and optical means for amplifying and conjugating the thresholded correlation image to generate an amplified correlation image signal, wherein said optical means includes a spatial light modulator.

Claim 3

The hybrid optical and electronic associative memory system of claim 1, wherein the image transforming means comprises a Fourier transform lens.

Claim 4

The hybrid optical and electronic associative memory system of claim 1, wherein the hologram is a Fourier transform hologram.

Claim 5

The hybrid optical electronic associative memory system of claim 1, wherein the hologram is a Fresnel hologram.

Claim 6

The Hybrid optical electronic associative memory system of claim 1, wherein the hologram is a volume hologram.

Claim 7

The hybrid optical and electronic associative memory system of claim 1, wherein said optical amplification means comprises a CCD-LCLV.

Claim 8

A hybrid optical and electronic associative memory system capable of recalling a stored image when the memory system is provided with a distorted input image which is a partial or distorted version of the stored image, comprising: a hologram including at least one stored image, said stored image including a first stored image of a first object, said first stored image being recorded with a first reference beam, said first stored image being a transform of a first real image of said first object; image transforming means for providing a transform of the distorted input image to said hologram so as to generate a distorted reference beam; means or transforming said distorted reference beam into a correlation image related to said first stored image and distorted input image; and means for enhancing said correlation image, including an electro-optical thresholding means, for thresholding said correlation image and eliminating low level spurious light therein, wherein said electro-optical thresholding means includes: (a) a first vidicon camera for receiving said correlation image and generating a vidicon signal; (b) an electronic threshold processor for processing said vidicon signal to threshold and enhance the resolution of said vidicon signal and provide a thresholded output signal; and (c) A CRT having a CRT output screen, the thresholded output signal being provided to said CRT so as to generate an electro-optical image signal at said CRT output screen; optical amplification means for amplifying the threshold correlation image to generate an amplified correlation image signal, wherein said means for amplifying includes a spatial light modulator positioned in juxtaposed adjacent alignment with said CRT output screen, said spatial light modulator modulating a high intensity readout beam in response to the thresholded output signal, so as to generate the amplified correlation image signal.

Claim 9

A hybrid optical and electronic associative memory system capable of recalling a stored image when the memory system is provided with a distorted input image which is a partial or distorted version of the stored image, comprising: a hologram including at least one stored image, said stored image including a first stored image of a first object, said first stored image being recorded with a first reference beam, said first stored image being a transform of a first real image of said first object; image transforming means for providing a transform of the distorted input image to said hologram so as to generate a distorted reference beam; means or transforming said distorted reference beam into a correlation image related to said first stored image and distorted input image; and means for enhancing said correlation image, including an electro-optical thresholding means, for thresholding said correlation image and eliminating low level spurious light therein, wherein said electro-optical thresholding means includes: (a) a first vidicon camera for receiving said correlation image and generating a vidicon signal; (b) an electronic threshold processor for processing said vidicon signal to threshold and enhance the resolution of said vidicon signal and provide a thresholded output signal; and (c) A CRT having a CRT output screen, the thresholded output signal being provided to said CRT so as to generate an electro-optical image signal at said CRT output screen; optical amplification means for amplifying the threshold correlation image to generate an amplified correlation image signal, wherein said means for amplifying includes a spatial light modulator positioned in juxtaposed adjacent alignment with said CRT output screen, said spatial light modulator modulating a high intensity readout beam in response to the thresholded output signal, so as to generate the amplified correlation image signal.

Claim 10

The hybrid optical and electronic associative memory system of claim 7, wherein said spatial light modulator is a liquid crystal light valve (LCLV).

Claim 11

The hybrid optical and electronic associative memory system of claim 8, wherein said system acts as a resonator by further including: (a) a second vidicon camera for receiving said output image from said hologram and generating a second vidicon signal; (b) a second threshold pressure for processing said second vidicon signal and providing an object leg threshold signal; (c) a second CRT, having an output screen, said second CRT for generating a CRT signal responsively to said object leg thresholded signal; (d) a second LCLV, operatively linked to said second CRT, for modulating a second high intensity readout beam, and (e) means for directing the modulated second high intensity readout beam to said hologram.

Claim 12

An associative memory system capable of associating a first body of data with a second incomplete body of data, comprising: (a) data storage means for storing a first transformed set of data corresponding to said first body of data, and a reference set of data corresponding to a transform of a plurality of delta functions; (b) data input means for providing said data storage means with a second transformed set of data corresponding to the second incomplete body of data so as to generate a composite product of the transform of said first body of data, the second transformed set of data and the reference set of data; (c) means for enhancing the composite product including a first electronic data processing means for thresholding the composite product and generating a thresholded signal, and a data amplifier operating in association with said electronic data processing means, for receiving a readout beam and modulating said readout beam with the thresholded signal such that a modulated signal is generated; (d) means for redirecting the modulated signal to said data storage means, and (e) associative processing means, operatively linked to said data storage means, for retrieving said first body of data, by identifying an association between said first body of data and said second incomplete body of data, when said data storage means is provided with the modulated signal.

Claim 13

An associative memory system capable of associating a first body of data with a second incomplete body of data, comprising: (a) data storage means for storing a first transformed set of data corresponding to said first body of data, and a reference set of data corresponding to a transform of a plurality of delta functions; (b) data input means for providing said data storage means with a second transformed set of data corresponding to the second incomplete body of data so as to generate a composite product of the transform of said first body of data, the second transformed set of data and the reference set of data; (c) means for enhancing the composite product including a first electronic data processing means for thresholding the composite product and generating a thresholded signal, and a data amplifier operating in association with said electronic data processing means, for receiving a readout beam and modulating said readout beam with the thresholded signal such that a modulated signal is generated; (d) means for redirecting the modulated signal to said data storage means, and (e) associative processing means, operatively linked to said data storage means, for retrieving said first body of data, by identifying an association between said first body of data and said second incomplete body of data, when said data storage means is provided with the modulated signal.

Claim 14

The system of claim 10 further comprising: a data resonator which provides adjustable thresholding of said incomplete body of data, said resonator comprising: a second electronic data processing means for thresholding, disposed on the side of said data storage means opposite from said first electronic data processing means, so that the modulated signal iteratively loops back and forth between the first and second electronic data processing means.

Claim 15

A hybrid optical and electronic associative memory system for recalling a first stored image when the memory system is provided with a distorted incomplete input image, comprising: (a) a hologram having the first stored image of an object recorded therein as a scattered field pattern transform; (b) means for providing the distorted incomplete input image to said hologram so as to generate a distorted reference beam; (c) electro-optical means for resolving the reference beam so as to generate an enhanced reference beam, including: a correlation lens; image processor having an adjustable control for setting the threshold of the reference beam, and generating a thresholded reference beam; means for modulating a readout beam responsively to the thresholded reference beam, so as to generate the enhanced reference beam, and (d) an object leg of the system disposed on the side of said hologram opposite to said electro-optical means, to form a resonator with said electro-optical means, said object leg including: a second means for modulating a second readout beam, and a second thresholding means, the enhanced reference beam, from said electro-optical means iteratively looping through said hologram between said electro-optical means and said object leg, and reconstruction an output image corresponding to said first stored image.

Claim 16

A hybrid optical and electronic associative memory system for recalling a first stored image when the memory system is provided with a distorted incomplete input image, comprising: (a) a hologram having the first stored image of an object recorded therein as a scattered field pattern transform; (b) means for providing the distorted incomplete input image to said hologram so as to generate a distorted reference beam; (c) electro-optical means for resolving the reference beam so as to generate an enhanced reference beam, including: a correlation lens; image processor having an adjustable control for setting the threshold of the reference beam, and generating a thresholded reference beam; means for modulating a readout beam responsively to the thresholded reference beam, so as to generate the enhanced reference beam, and (d) an object leg of the system disposed on the side of said hologram opposite to said electro-optical means, to form a resonator with said electro-optical means, said object leg including: a second means for modulating a second readout beam, and a second thresholding means, the enhanced reference beam, from said electro-optical means iteratively looping through said hologram between said electro-optical means and said object leg, and reconstruction an output image corresponding to said first stored image.

Claim 17

The hybrid optical and electronic associative memory system of claim 12, wherein said first and second means for modulating are directly electronically controlled to modulate, respectively, said first and second readout beams.