Patents by Inventor Mark P. Lill

Mark P. Lill 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).

  • Method and apparatus for asperity sensing and storage
    Patent number: 6941004
    Abstract: A fingerprint capture device (10) has a plurality of charge storage devices (12) that couple through conductive surfaces (22) to conductive spheres (21) that are disposed within an epoxy that comprises a fingerprint contact surface (13). When raised portions of an object (26) appropriately contact certain conductive spheres (21), the corresponding charge storage device (12) will discharge. This discharging serves both to simultaneously sense the asperity features of the object and to store that sensed information as well.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: September 6, 2005
    Assignee: Motorola, Inc.
    Inventors: Cathryn E. Goodman, Mark P. Lill
  • Method and apparatus for asperity sensing and storage
    Publication number: 20030108226
    Abstract: A fingerprint capture device (10) has a plurality of charge storage devices (12) that couple through conductive surfaces (22) to conductive spheres (21) that are disposed within an epoxy that comprises a fingerprint contact surface (13). When raised portions of an object (26) appropriately contact certain conductive spheres (21), the corresponding charge storage device (12) will discharge. This discharging serves both to simultaneously sense the asperity features of the object and to store that sensed information as well.
    Type: Application
    Filed: December 6, 2001
    Publication date: June 12, 2003
    Applicant: Motorola, Inc.
    Inventors: Cathryn E. Goodman, Mark P. Lill
  • Ignition misfire detector
    Patent number: 4886029
    Abstract: A technique for detecting misfire due to a fault in the secondary of an automotive ignition system compares the ignition signal developed by the ignition coil, preferably the primary winding thereof, to reference signals. Abnormal results which occur at predetermined times subsequent to the initiation of the ignition signal indicate short circuit and/or open circuit conditions in the ignition system's secondary. In response to such fault conditions, fuel is preferably shut off to the cylinder associated with the misfire.
    Type: Grant
    Filed: May 26, 1988
    Date of Patent: December 12, 1989
    Assignee: Motorola Inc.
    Inventors: Mark P. Lill, Edward E. Li, Koushun Sun