Patents by Inventor Robert M. Stock

Robert M. Stock has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4210899
    Abstract: A system including electronic, mechanical and optical mechanisms which enable the system to: "read" a human fingerprint directly from a human finger; convert the ridge-valley pattern of that fingerprint into an electronic representation; transmit the electronic representation to a centralized location where image processing computing equipment can locate and extract the distinctive characteristics or minutiae of the fingerprint; compare the minutiae with minutiae previously recorded from the fingerprints of persons whom the system is responsible for identifying; determine whether the identity of the person whose fingerprint is read is known, and, if known, whether or not the person is authorized to enter the portal equipped with this system, or to otherwise act; and, to transmit a signal to the terminal and/or portal regarding the system's decision.
    Type: Grant
    Filed: November 25, 1977
    Date of Patent: July 1, 1980
    Assignee: Fingermatrix, Inc.
    Inventors: Claron W. Swonger, Dan M. Bowers, Robert M. Stock
  • Patent number: 4015240
    Abstract: A pattern recognition apparatus for recognizing or identifying fingerprint images and the like is described. The apparatus enables the determination of the coordinates and angular positions of characteritic points such as fingerprint minutiae. The pattern recognition apparatus includes a high resolution scanner for scanning a fingerprint impression or image, an analog to digital converter to convert the scanner signals to a digitally encoded image having many levels of gray scale data, an image enhancer to eliminate imperfections in the imagery, pre-editing circuits to edit out areas of the image which should not be further processed, a minutiae detection system having high redundancy to reduce the probability of missed minutiae, and a post-editing subsystem to eliminate false minutiae detections.
    Type: Grant
    Filed: February 12, 1975
    Date of Patent: March 29, 1977
    Assignee: Calspan Corporation
    Inventors: Claron W. Swonger, Hollis F. Ryan, Robert M. Stock, Charles M. Vossler