Patents by Inventor David F. Freeman

David F. Freeman 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).

  • Patent number: 7668708
    Abstract: A system and method for wireless network planning utilizing raster data, stored and manipulated in raster data planes (204-212) and vector data (522) stored and manipulated in vector data planes (528-532). The invention increases the accuracy of network planning by simultaneously utilizing vector data planes (528-532) and raster data planes (204-212) to perform computations using vector features contained within map pixels (604). The disclosed method makes it possible to perform accurate computations such as propagation loss to vector points (602) contained within map pixels (604). Accuracy is further increased because other characteristics such as received power, elevation, and best server can be computed to the vector features rather than processing them with traditional raster resolutions.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: February 23, 2010
    Assignee: Verizon Laboratories Inc.
    Inventors: Pablo A. Vicharelli, Pete A. Boyer, David F. Freeman
  • Patent number: 7469144
    Abstract: A system and method for wireless network planning utilizing raster data, stored and manipulated in raster data planes (204-212) and vector data (522) stored and manipulated in vector data planes (528-532). The invention increases the accuracy of network planning by simultaneously utilizing vector data planes (528-532) and raster data planes (204-212) to perform computations using vector features contained within map pixels (604). The disclosed method makes it possible to perform accurate computations such as propagation loss to vector points (602) contained within map pixels (604). Accuracy is further increased because other characteristics such as received power, elevation, and best server can be computed to the vector features rather than processing them with traditional raster resolutions.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: December 23, 2008
    Assignee: Verizon Laboratories, Inc.
    Inventors: Pablo A. Vicharelli, Pete A. Boyer, David F. Freeman
  • Patent number: 7386317
    Abstract: A cellular network configuration tool is described that performs frequency assignments for use in a cellular network. The channels are assigned in accordance with input configuration data such as a channel separation matrix, geographic data, and requested channel assignments for each sector included in the cellular network being configured. The configuration is performed in accordance with predetermined constraints and criteria and quality of service input. The tool uses frequency assignment techniques to perform the channel assignments in accordance with varying constraints and criteria.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: June 10, 2008
    Assignee: Verizon Laboratories Inc.
    Inventors: Pete A. Boyer, David F. Freeman, Pablo A. Vicharelli, Philip G. Rossoni
  • Patent number: 7171210
    Abstract: A system and method for wireless network planning utilizing raster data, stored and manipulated in raster data planes (204–212) and vector data (522) stored and manipulated in vector data planes (528–532). The invention increases the accuracy of network planning by simultaneously utilizing vector data planes (528–532) and raster data planes (204–212) to perform computations using vector features contained within map pixels (604). The disclosed method makes it possible to perform accurate computations such as propagation loss to vector points (602) contained within map pixels (604). Accuracy is further increased because other characteristics such as received power, elevation, and best server can be computed to the vector features rather than processing them with traditional raster resolutions.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: January 30, 2007
    Assignee: Verizon Laboratories Inc.
    Inventors: Pablo A. Vicharelli, Pete A. Boyer, David F. Freeman
  • Patent number: 7050812
    Abstract: A cellular network configuration tool is described that performs frequency assignments for use in a cellular network. The channels are assigned in accordance with input configuration data such as a channel separation matrix, geographic data, and requested channel assignments for each sector included in the cellular network being configured. The configuration is performed in accordance with predetermined constraints and criteria and quality of service input. The tool uses frequency assignment techniques to perform the channel assignments in accordance with varying constraints and criteria.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: May 23, 2006
    Assignee: Verizon Laboratories Inc.
    Inventors: Pete A. Boyer, David F. Freeman, Pablo A. Vicharelli, Philip G. Rossoni
  • Patent number: 6871073
    Abstract: A cellular network configuration tool is described that performs frequency assignments for use in a cellular network. The channels are assigned in accordance with input configuration data such as a channel separation matrix, geographic data, and requested channel assignments for each sector included in the cellular network being configured. The configuration is performed in accordance with predetermined constraints and criteria and quality of service input. The tool uses frequency assignment techniques to perform the channel assignments in accordance with varying constraints and criteria.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: March 22, 2005
    Assignee: Verizon Laboratories Inc.
    Inventors: Pete A. Boyer, David F. Freeman, Pablo A. Vicharelli, Philip G. Rossoni
  • Patent number: 6639904
    Abstract: In a cellular communication network (20) having a channel assignment plan (28) that distinguishes frequency channels (34) assigned to a plurality of cells (24), a method (58) and system (46) adapt the channel assignment plan (28) during network planning to include shared frequency channels (45). Borrower cells (84) are identified in response to a deficiency value (36) indicating a shortage in a quantity of the frequency channels (34) assigned to the borrower cells (84). Donor cells (95) are selected from the cells (24) in response to a load factor (38) for each of the cells (24), the load factor (38) indicating the number of frequency channels (34) already being shared by the cell (24). Candidate frequency channels (34) that may be shared are evaluated against predetermined channel sharing constraints, such as frequency separation constraints (156, 158), co-channel carrier-to-interference C/I constraints (232, and adjacent channel C/I) constraints (280).
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: October 28, 2003
    Assignee: Verizon Laboratories Inc.
    Inventors: Pete A. Boyer, David F. Freeman, Alan B. Jennison
  • Patent number: 6456848
    Abstract: Channels are assigned (56) to a subject cellular network (12) after taking into account the locked/unlocked status of cells (20). Channels are assigned to locked cells (20′) in accordance with a prearranged assignment plan (36). After this assignment, one unlocked cell (20″) is selected (50) at a time. An available channels list is built (54) for the selected unlocked cell (20″), and a channel is selected (56) from this list for assignment to the selected unlocked cell (20″). The available channels list is built (54) by evaluating all channels in the network (12) one at a time to determine if their assignment to the selected unlocked cell (20″) would cause undue interference in any other cell (20) of the network (12). If interference worse than a minimum system threshold is detected (82) in another cell (20), a channel is made unavailable for assignment unless it is a locked cell (20″).
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: September 24, 2002
    Assignee: Verizon Laboratories Inc.
    Inventors: David F Freeman, Pete A. Boyer
  • Publication number: 20010041565
    Abstract: A system and method for wireless network planning utilizing raster data, stored and manipulated in raster data planes (204-212) and vector data (522) stored and manipulated in vector data planes (528-532). The invention increases the accuracy of network planning by simultaneously utilizing vector data planes (528-532) and raster data planes (204-212) to perform computations using vector features contained within map pixels (604). The disclosed method makes it possible to perform accurate computations such as propagation loss to vector points (602) contained within map pixels (604). Accuracy is further increased because other characteristics such as received power, elevation, and best server can be computed to the vector features rather than processing them with traditional raster resolutions.
    Type: Application
    Filed: December 14, 2000
    Publication date: November 15, 2001
    Inventors: Pablo A. Vicharelli, Pete A. Boyer, David F. Freeman
  • Patent number: 5103431
    Abstract: Apparatus for detecting sonar signals embedded in noise includes a neural network trained to detect signals in response to the slope of amplitude rank ordered noise corrected powers. A detector detects an analog waveform. Means samples and digitizes the analog waveform to obtain digital samples which in turn are passed through a cosine window. The digital samples are Fourier transformed into conjugate sets of complex numbers representing amplitude and phase. One conjugate set of the complex numbers are discarded, and the remaining complex numbers ranked according to frequency. The sum of the square of the real and imaginary component of each of the remaining complex numbers in a frequency band are provided to obtain a corresponding series of representing estimated power ranked by frequency over the band. The noise contained in subbands of the band is estimated.
    Type: Grant
    Filed: December 31, 1990
    Date of Patent: April 7, 1992
    Assignee: GTE Government Systems Corporation
    Inventors: David F. Freeman, William J. Fonseca