Method and apparatus for personal identification

Claim 1

An apparatus for providing security and identification which utilizes a recorded hologram of personal data and correlates said data optically in a complex filter correlation with a transform of real time data input comprising: a. a source of coherent light to provide an illuminating beam and a transform lens in said beam to create a transform plane, b. first means in said illuminating beam responsive to the surface impression of a finger to display a fingerprint to alter the beam in a phase modulation with the data of said print, c. second means spaced from said source and said first means and in the path of said beam for supporting a pre-recorded hologram of a fingerprint of an individual to serve as a filter in the transform plane of the system, d. light responsive means positioned to receive the phase modulated beam as altered by said data and said pre-recorded hologram at a correlation output plane to respond to the light output of the optical matching of said filters to indicate the existence of matching or non-matching, e. a correlation indicator responsive to a predetermined light output at said light responsive means to register correlation matching, f. a plurality of optical elements mounted in said beam between said first means and said second means, each of said elements serving to direct the optical path at an oblique angle to the path of said beam, and g. means to move said elements in opposite directions at different speeds to cause the data input to scan a prescribed area of recorded data on the optical axis at the transform plane to insure momentary alignment registration for light transmission when said data is matching.

Claim 2

An apparatus for providing security and identification which utilizes a recorded hologram of personal data and correlates said data optically in a complex filter correlation with a transform of real time data input comprising: a. a source of coherent light to provide an illuminating beam and a transform lens in said beam to create a transform plane, b. first means in said illuminating beam responsive to the surface impression of a finger to display a fingerprint to alter the beam in a phase modulation with the data of said print, c. second means spaced from said source and said first means and in the path of said beam for supporting a pre-recorded hologram of a fingerprint of an individual to serve as a filter in the transform plane of the system, d. light responsive means positioned to receive the phase modulated beam as altered by said data and said pre-recorded hologram at a correlation output plane to respond to the light output of the optical matching of said filters to indicate the existence of matching or non-matching, e. a correlation indicator responsive to a predetermined light output at said light responsive means to register correlation matching, f. a plurality of optical elements mounted in said beam between said first means and said second means, each of said elements serving to direct the optical path at an oblique angle to the path of said beam, and g. means to move said elements in opposite directions at different speeds to cause the data input to scan a prescribed area of recorded data on the optical axis at the transform plane to insure momentary alignment registration for light transmission when said data is matching.

Claim 7

An apparatus for providing security and identification which utilizes a recorded hologram of personal data and correlates said data optically in a complex filter correlation with a transform of real time data input comprising: a. a complex filter correlation system utilizing a coherent light beam, a transform lens to establish a transform plane in said beam, means to support data in said beam at a selected input plane, and means including a reconstruction lens to establish a correlation output plane, b. means forming a transparent surface on said data supporting means at said input plane for registering the fingerprint of a person to be identified and forming a Fourier transform thereof, c. a formed hologram of a fingerprint of a person to be identified at the transform plane, d. an indicator means at the correlation output plane responsive to reconstruction of a correlated reference beam for indicating correlation of the input print and the formed hologram print, and e. means between said input plane and said transform plane movable to sweep said Fourier transform over said formed hologram to obtain momentary alignment registration to permit reference beam reconstruction when said transform and formed hologram are identical.

Claim 8

An apparatus for providing security and identification which utilizes a recorded hologram of personal data and correlates said data optically in a complex filter correlation with a transform of real time data input comprising: a. a complex filter correlation system utilizing a coherent light beam, a transform lens to establish a transform plane in said beam, means to support data in said beam at a selected input plane, and means including a reconstruction lens to establish a correlation output plane, b. means forming a transparent surface on said data supporting means at said input plane for registering the fingerprint of a person to be identified and forming a Fourier transform thereof, c. a formed hologram of a fingerprint of a person to be identified at the transform plane, d. an indicator means at the correlation output plane responsive to reconstruction of a correlated reference beam for indicating correlation of the input print and the formed hologram print, and e. means between said input plane and said transform plane movable to sweep said Fourier transform over said formed hologram to obtain momentary alignment registration to permit reference beam reconstruction when said transform and formed hologram are identical.

Claim 10

A method of providing a personal security and identification system in a complex filter correlation which comprises: a. taking an impression of a fingerprint of an individual in translucent oil on a transparent surface, b. placing said impression in a beam of coherent light to form a Fourier transform, c. placing a formed hologram of a fingerprint of a person to be identified at a transform plane in said beam downstream from said fingerprint impression, d. rotating a plurality of refractive elements in said beam between said impression and said formed hologram at different speeds and differing refractive angles to cause a sweeping of the Fourier transform formed by said impression on said formed hologram to facilitate momentary alignment, e. moving a light mask having one or more light slits across said beam at a correlation output plane to interrupt said beam at a frequency greater than the frequency of rotation of the refractive elements, and f. determining correlation and identity with an indicator device responsive to light peaks resulting from correspondence of the transform of the impressed fingerprint and the formed hologram.

Claim 11

A method of providing a personal security and identification system in a complex filter correlation which comprises: a. taking an impression of a fingerprint of an individual in translucent oil on a transparent surface, b. placing said impression in a beam of coherent light to form a Fourier transform, c. placing a formed hologram of a fingerprint of a person to be identified at a transform plane in said beam downstream from said fingerprint impression, d. rotating a plurality of refractive elements in said beam between said impression and said formed hologram at different speeds and differing refractive angles to cause a sweeping of the Fourier transform formed by said impression on said formed hologram to facilitate momentary alignment, e. moving a light mask having one or more light slits across said beam at a correlation output plane to interrupt said beam at a frequency greater than the frequency of rotation of the refractive elements, and f. determining correlation and identity with an indicator device responsive to light peaks resulting from correspondence of the transform of the impressed fingerprint and the formed hologram.