Patents by Inventor Frederic P. Fischer, II

Frederic P. Fischer, II 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).

  • Fingerprint identification method and apparatus
    Patent number: 4185270
    Abstract: A process and apparatus for encoding the ridge endings and bifurcations of an inquiry fingerprint and for automatically searching through a file of similarly encoded fingerprints for the fingerprint(s) whose minutiae are most similar to those of the inquiry fingerprint. The process does not require registration of the minutiae prior to storage or searching and the storage and search of file fingerprint cards can be implemented on a digital computer system since the minutiae data from each print is in a form easily processed by computer.
    Type: Grant
    Filed: June 14, 1978
    Date of Patent: January 22, 1980
    Assignee: Fingermatrix, Inc.
    Inventors: Frederic P. Fischer II, Phillip G. Pflueger
  • Method and apparatus for transmitting facsimiles over telephone lines
    Patent number: 4128850
    Abstract: The quality of and/or transmission speed for fingerprint facsimiles transmitted over telephone lines are improved by image enhancement prior to transmission. Image enhancement is achieved by using a multi-element photodetector array and simultaneously processing the signals from the component elements of the multi-element photodetector to produce a binary video output indicating whether the center of the scan is on a ridge or a valley portion of the fingerprint.
    Type: Grant
    Filed: May 16, 1977
    Date of Patent: December 5, 1978
    Assignee: Calspan Corporation
    Inventor: Frederic P. Fischer, II