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).
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Patent number: 7668708Abstract: 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: GrantFiled: December 19, 2006Date of Patent: February 23, 2010Assignee: Verizon Laboratories Inc.Inventors: Pablo A. Vicharelli, Pete A. Boyer, David F. Freeman
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Patent number: 7469144Abstract: 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: GrantFiled: December 19, 2006Date of Patent: December 23, 2008Assignee: Verizon Laboratories, Inc.Inventors: Pablo A. Vicharelli, Pete A. Boyer, David F. Freeman
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Patent number: 7386317Abstract: 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: GrantFiled: February 27, 2006Date of Patent: June 10, 2008Assignee: Verizon Laboratories Inc.Inventors: Pete A. Boyer, David F. Freeman, Pablo A. Vicharelli, Philip G. Rossoni
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Patent number: 7171210Abstract: 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: GrantFiled: December 14, 2000Date of Patent: January 30, 2007Assignee: Verizon Laboratories Inc.Inventors: Pablo A. Vicharelli, Pete A. Boyer, David F. Freeman
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Patent number: 7050812Abstract: 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: GrantFiled: January 9, 2004Date of Patent: May 23, 2006Assignee: Verizon Laboratories Inc.Inventors: Pete A. Boyer, David F. Freeman, Pablo A. Vicharelli, Philip G. Rossoni
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Patent number: 6871073Abstract: 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: GrantFiled: December 15, 1999Date of Patent: March 22, 2005Assignee: Verizon Laboratories Inc.Inventors: Pete A. Boyer, David F. Freeman, Pablo A. Vicharelli, Philip G. Rossoni
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Patent number: 6639904Abstract: 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: GrantFiled: December 15, 1999Date of Patent: October 28, 2003Assignee: Verizon Laboratories Inc.Inventors: Pete A. Boyer, David F. Freeman, Alan B. Jennison
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Patent number: 6456848Abstract: 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: GrantFiled: December 15, 1999Date of Patent: September 24, 2002Assignee: Verizon Laboratories Inc.Inventors: David F Freeman, Pete A. Boyer
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Publication number: 20010041565Abstract: 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: ApplicationFiled: December 14, 2000Publication date: November 15, 2001Inventors: Pablo A. Vicharelli, Pete A. Boyer, David F. Freeman
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Patent number: 5103431Abstract: 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: GrantFiled: December 31, 1990Date of Patent: April 7, 1992Assignee: GTE Government Systems CorporationInventors: David F. Freeman, William J. Fonseca