Patents by Inventor Brent A. Disselkoen

Brent A. Disselkoen 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).

  • Direct acquisition of very large PN sequences in GPS systems
    Patent number: 6556167
    Abstract: A receiver and method for acquiring a large pseudorandom (PN) sequence such as a GPS P(Y) code signal with poor or no knowledge of an external time reference are disclosed. A reference PN sequence is sectioned into a predetermined number of subsequences. The large PN sequence to be acquired is received from a remote source. The received PN sequence is correlated with each of the predetermined number of subsequences simultaneously. The large PN sequence is acquired, and a GPS solution may be provided, in the event the correlation produces a correlation between the received PN sequence and one of the predetermined number of subsequences. The large PN sequence may acquired without knowledge of an external time reference in a reasonable amount of time (e.g., less than ten minutes).
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: April 29, 2003
    Assignee: Rockwell Collins, Inc.
    Inventors: Brent A. Disselkoen, William C. Caldwell
  • Direct acquistion of very large PN sequences in GPS systems
    Patent number: 6369752
    Abstract: A receiver and method for acquiring a large pseudorandom (PN) sequence such as a GPS P(Y) code signal with poor or no knowledge of an external time reference are disclosed. A reference PN sequence is sectioned into a predetermined number of subsequences. The large PN sequence to be acquired is received from a remote source. The received PN sequence is correlated with each of the predetermined number of subsequences simultaneously. The large PN sequence is acquired, and a GPS solution may be provided, in the event the correlation produces a correlation between the received PN sequence and one of the predetermined number of subsequences. The large PN sequence may acquired without knowledge of an external time reference in a reasonable amount of time (e.g., less than ten minutes).
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: April 9, 2002
    Assignee: Rockwell Collins, Inc.
    Inventors: Brent A. Disselkoen, William C. Caldwell
  • Time-relative positioning for static applications
    Patent number: 5999123
    Abstract: A system of utilizing a single radio receiver with continuously broadcast GPS signals in order to determine precise relative positioning between two arbitrary positions or to determine current position. The invention includes utilizing changes in the carrier signal as detected by the GPS receiver occurring as a result of the movement from a first position to a second position.
    Type: Grant
    Filed: September 13, 1995
    Date of Patent: December 7, 1999
    Assignee: Rockwell International Corporation
    Inventors: Brent Disselkoen, Patrick Hwang, Karl Ulmer