Patents by Inventor Björn Nordin

Björn Nordin 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).

  • Sequential image alignment
    Patent number: 8634605
    Abstract: A method for reading fingerprints is disclosed. The method comprises acquiring images of a fingerprint from a finger upon relative movement between the finger and an image sensor; selecting lines from said acquired images representing a new area of said fingerprint; determining composition parameters for each selected line: and storing said composition parameters and said selected lines such that a composite image comprising said selected lines is composabte. A corresponding fingerprint reading apparatus, a device, and a computer program are also disclosed.
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: January 21, 2014
    Assignee: Precise Biometrics AB
    Inventors: Krister Valfridsson, Björn Nordin
  • SEQUENTIAL IMAGE ALIGNMENT
    Publication number: 20110182486
    Abstract: A method for reading fingerprints is disclosed. The method comprises acquiring images of a fingerprint from a finger upon relative movement between the finger and an image sensor; selecting lines from said acquired images representing a new area of said fingerprint; determining composition parameters for each selected line: and storing said composition parameters and said selected lines such that a composite image comprising said selected lines is composabte. A corresponding fingerprint reading apparatus, a device, and a computer program are also disclosed.
    Type: Application
    Filed: May 13, 2008
    Publication date: July 28, 2011
    Applicant: Precise Biometrics AB
    Inventors: Krister Valfridsson, Björn Nordin
  • Method and device for identity check using frequency analysis
    Patent number: 7653222
    Abstract: In a method for use in checking a person's identity, at least part of an image of a fingerprint from the person is transformed so that a representation of a frequency content in said part of the image is obtained. Based on the obtained representation of the frequency content, a frequency code is determined, which contains a predetermined number of frequency code values. A device for carrying out the method is also described.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: January 26, 2010
    Assignee: Precise Biometrics AB
    Inventor: Björn Nordin
  • Check for fingerprints
    Patent number: 7035441
    Abstract: In a method of preventing false acceptance in a system for checking fingerprints, a latent fingerprint on the sensor (1) is detected by the location of a currently recorded fingerprint being compared with the location of a previously recorded fingerprint. If the location essentially corresponds, the recorded fingerprint is considered as originating from a latent fingerprint, and the fingerprint is rejected. Otherwise, the fingerprint is considered as originating from an actual finger on the sensor.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: April 25, 2006
    Assignee: Precise Biometrics AB
    Inventors: Jerker Bergenek, Björn Nordin