Patents by Inventor Meng F. Yee

Meng F. Yee 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 minimizing the area sampled to determine cell area coverage reliability in a radiotelephone system
    Patent number: 6173185
    Abstract: A robust method for determining the boundaries of cells and the associated reliability of the RF coverage within these boundaries is presented. The invention accurately determines the average range from the base station to the cell edge from RF signal strength measurements with a linear regression approach. The accuracy of this estimate is quantified both as a range uncertainty (e.g. ±100 meters) and as a cell coverage reliability (i.e. area/edge) through 1) simulation, 2) analysis of real data, and 3) theoretical analysis. It is shown that if the estimate of the cell radius meets the desired accuracy, then the corresponding estimates of coverage reliability (both area and edge) are more than sufficiently accurate. It is recommended that radio survey analyses incorporate this test as part of the coverage validation process.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: January 9, 2001
    Assignee: Northern Telecom Limited
    Inventors: Charles P. Bernardin, Meng F. Yee
  • Method and apparatus for minimizing the number of samples needed to determine cell area coverage reliability in a radiotelephone system
    Patent number: 6041236
    Abstract: A robust method for determining the boundaries of cells and the associated reliability of the RF coverage within these boundaries is presented. The invention accurately determines the average range from the base station to the cell edge from RF signal strength measurements with a linear regression approach. The accuracy of this estimate is quantified both as a range uncertainty (e.g. .+-.100 meters) and as a cell coverage reliability (i.e. area/edge) through 1) simulation, 2) analysis of real data, and 3) theoretical analysis. It is shown that if the estimate of the cell radius meets the desired accuracy, then the corresponding estimates of coverage reliability (both area and edge) are more than sufficiently accurate. It is recommended that radio survey analyses incorporate this test as part of the coverage validation process.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: March 21, 2000
    Assignee: Nortel Networks Corporation
    Inventors: Charles P. Bernardin, Meng F. Yee
  • Method and apparatus for estimating cell radius and area coverage reliability in a radiotelephone system
    Patent number: 6006095
    Abstract: A robust method for determining the boundaries of cells and the associated reliability of the RF coverage within these boundaries is presented. The invention accurately determines the average range from the base station to the cell edge from RF signal strength measurements with a linear regression approach. The accuracy of this estimate is quantified both as a range uncertainty (e.g. .+-.100 meters) and as a cell coverage reliability (i.e. area/edge) through 1) simulation, 2) analysis of real data, and 3) theoretical analysis. It is shown that if the estimate of the cell radius meets the desired accuracy, then the corresponding estimates of coverage reliability (both area and edge) are more than sufficiently accurate. It is recommended that radio survey analyses incorporate this test as part of the coverage validation process.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: December 21, 1999
    Assignee: Nortel Networks Corporation
    Inventors: Charles P. Bernardin, Meng F. Yee
  • Method and apparatus for minimizing the number of samples needed to determine cell radius coverage contour reliability in a radiotelephone system
    Patent number: 5983106
    Abstract: A robust method for determining the boundaries of cells and the associated reliability of the RF coverage within these boundaries is presented. The invention accurately determines the average range from the base station to the cell edge from RF signal strength measurements with a linear regression approach. The accuracy of this estimate is quantified both as a range uncertainty (e.g. .+-.100 meters) and as a cell coverage reliability (i.e. area/edge) through 1) simulation, 2) analysis of real data, and 3) theoretical analysis. It is shown that if the estimate of the cell radius meets the desired accuracy, then the corresponding estimates of coverage reliability (both area and edge) are more than sufficiently accurate. It is recommended that radio survey analyses incorporate this test as part of the coverage validation process.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: November 9, 1999
    Assignee: Nortel Networks Corporation
    Inventors: Charles P. Bernardin, Meng F. Yee
  • Method and apparatus for a radiotelephone system optimized for cell boundary coverage reliability
    Patent number: 5966661
    Abstract: A robust method for determining the boundaries of cells and the associated reliability of the RF coverage within these boundaries is presented. The invention accurately determines the average range from the base station to the cell edge from RF signal strength measurements with a linear regression approach. The accuracy of this estimate is quantified both as a range uncertainty (e.g. .+-.100 meters) and as a cell coverage reliability (i.e. area/edge) through 1) simulation, 2) analysis of real data, and 3) theoretical analysis. It is shown that if the estimate of the cell radius meets the desired accuracy, then the corresponding estimates of coverage reliability (both area and edge) are more than sufficiently accurate. It is recommended that radio survey analyses incorporate this test as part of the coverage validation process.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: October 12, 1999
    Assignee: Nortel Networks Corporation
    Inventors: Charles P. Bernardin, Meng F. Yee