Patents by Inventor Kristi Annette Haverkamp

Kristi Annette Haverkamp 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).

  • System and method for frequency management in a communication device having a positioning device
    Patent number: 6741842
    Abstract: A frequency management scheme for a hybrid cellular/GPS or other device generates a local clock signal for the communications portion of the device, using a crystal oscillator or other part. The oscillator output may be corrected by way of an automatic frequency control (AFC) circuit or software, to drive the frequency of that clock signal to a higher accuracy. Besides being delivered to the cellular or other communications portion of the hybrid device, the compensated clock signal may also be delivered to a comparator to measure the offset between the cellular oscillator and the GPS oscillator. The error in the cellular oscillator may be measured from the AFC operation in the cellular portion of the device. An undershoot or overshoot in the delta between the two oscillators may thus be deduced to be due to bias in the GPS oscillator, whose value may then be determined.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: May 25, 2004
    Assignee: Motorola, Inc.
    Inventors: Mark A. Goldberg, Jose Korneluk, Atif Meraj, Anil Patel, Kristi Annette Haverkamp
  • SYSTEM AND METHOD FOR FREQUENCY MANAGEMENT IN A COMMUNICATION DEVICE HAVING A POSITIONING FEATURE
    Publication number: 20040063411
    Abstract: A frequency management scheme for a hybrid cellular/GPS or other device generates a local clock signal for the communications portion of the device, using a crystal oscillator or other part. The oscillator output may be corrected by way of an automatic frequency control (AFC) circuit or software, to drive the frequency of that clock signal to a higher accuracy. Besides being delivered to the cellular or other communications portion of the hybrid device, the compensated clock signal may also be delivered to a comparator to measure the offset between the cellular oscillator and the GPS oscillator. The error in the cellular oscillator may be measured from the AFC operation in the cellular portion of the device. An undershoot or overshoot in the delta between the two oscillators may thus be deduced to be due to bias in the GPS oscillator, whose value may then be determined.
    Type: Application
    Filed: September 30, 2002
    Publication date: April 1, 2004
    Inventors: Mark A. Goldberg, Jose Korneluk, Atif Meraj, Anil Patel, Kristi Annette Haverkamp