Optical specimen identification filtering techniques
First Claim
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1. A SPECIMEN IDENTIFICATION APPARATUS, COMPRISING, IN COMBINATION:
- OPTICAL MEANS FOR GENERATING AN AUTOCORRELATION PATTERS OF THE SPECIMEN TO BE IDENTIFIED;
MEANS FOR ENHANCING IDENTIFICATION COMPRISING A PAIR OF OPTICAL FILTERS, ONE HAVING NON-UNIFORM LIGHT TRANSMISSION CORRESPONDING TO THE POSITIVE ELEMENTS AND ONE HAVING NONUNIFORM LIGHT TRANSMISSION CORRESPONDING TO THE ABSOLUTE VALUES OF THE NEGATIVE ELEMENTS OF A BI-POLAR FUNCTION WHICH IS SYMMETRIC ABOUT A POINT, AND RESPONSIVE TO THE AUTOCORRELATION PATTERN, FOR GENERATING A PAIR OF FILTERED AUTOCORRELATION PATTERNS;
AND COMPARISON MEANS FOR COM-
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1 Claim
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1. A SPECIMEN IDENTIFICATION APPARATUS, COMPRISING, IN COMBINATION:
- OPTICAL MEANS FOR GENERATING AN AUTOCORRELATION PATTERS OF THE SPECIMEN TO BE IDENTIFIED;
MEANS FOR ENHANCING IDENTIFICATION COMPRISING A PAIR OF OPTICAL FILTERS, ONE HAVING NON-UNIFORM LIGHT TRANSMISSION CORRESPONDING TO THE POSITIVE ELEMENTS AND ONE HAVING NONUNIFORM LIGHT TRANSMISSION CORRESPONDING TO THE ABSOLUTE VALUES OF THE NEGATIVE ELEMENTS OF A BI-POLAR FUNCTION WHICH IS SYMMETRIC ABOUT A POINT, AND RESPONSIVE TO THE AUTOCORRELATION PATTERN, FOR GENERATING A PAIR OF FILTERED AUTOCORRELATION PATTERNS;
AND COMPARISON MEANS FOR COM-
- OPTICAL MEANS FOR GENERATING AN AUTOCORRELATION PATTERS OF THE SPECIMEN TO BE IDENTIFIED;
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Current AssigneeGlenmore L. Shelton Jr, Lawrence P. Horwitz
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Original AssigneeGlenmore L. Shelton Jr, Lawrence P. Horwitz
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InventorsHorwitz, Lawrence P., Shelton, Glenmore L. Jr.
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Application NumberUS04/064,568Time in Patent Office1,730 DaysField of SearchUS Class Current356/71CPC Class CodesG06V 10/88 Image or video recognition ...
