PHILIP GUIDO ROSSONI
Pilots at Agassiz Ave, Belmont, MA

License number

Massachusetts A2242209

Professional information

Method And System For Characterizing Propagation Of Radiofrequency Signal

US Patent:

6487417, Nov 26, 2002

Filed:

Nov 24, 1999

Appl. No.:

09/448956

Inventors:

Philip G. Rossoni - Belmont MA
Pablo Vicharelli - Carlisle MA
Pete A. Boyer - Somerville MA
David Freeman - Billerica MA

Assignee:

Verizon Laboratories Inc. - Waltham MA

International Classification:

H04Q 720

US Classification:

455456, 455 676, 455506, 455 65

Abstract:

A method, executed on a simulation system ( ), characterizes propagation of a radiofrequency signal ( ) in a three-dimensional environment ( ). The method includes forming a database ( ) of propagation paths ( ) of the radiofrequency signal ( ) transmitted from a transmitter ( ) at a fixed location ( ) in the three-dimensional environment ( ). The propagation paths ( ) are represented by a plurality of line segments ( ) in the database ( ). Local line segments ( ) are selected from the plurality of line segments ( ) to establish a subset ( ) of the propagation paths ( ). The subset ( ) includes those propagation paths ( ) each having one of the local line segments ( ) proximate a location ( ) of a receiver ( ) in the environment ( ). Distinct multipath components ( ) representing distinct wavefronts of the radiofrequency signal ( ) are subsequently identified from the subset ( ) of the propagation paths ( ).

Methods And Techniques In Channel Assignment In A Cellular Network

US Patent:

6728544, Apr 27, 2004

Filed:

Dec 15, 1999

Appl. No.:

09/461990

Inventors:

Pete A. Boyer - Somerville MA
Pablo Vicharelli - Carlisle MA
David R. Freeman - Billerica MA
Philip G. Rossoni - Belmont MA

Assignee:

Verizon Laboratories Inc. - Waltham MA

International Classification:

H04Q 720

US Classification:

455450, 4554521, 455509

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.

Floating Gate Array Transistors

US Patent:

5111254, May 5, 1992

Filed:

Aug 17, 1990

Appl. No.:

7/569355

Inventors:

Mark Levinson - Sudbury MA
Brian M. Ditchek - Milford MA
Philip G. Rossoni - Belmont MA
Frederick Rock - Marlboro MA

Assignee:

GTE Laboratories Incorporated - Waltham MA

International Classification:

H01L 2980, H01L 2948

US Classification:

357 22

Abstract:

A junction field effect transistor having an array of electrically floating gate elements located between the control gate and the drain in the path of current flow from the source to the drain. As the drain voltage increases the depletion zone of the control gate expands until it reaches the nearest floating gate. The maximum electric field at the control gate is clamped while the nearest floating gate increases in potential and its depletion zone expands toward the next floating gate, and so on. In this way the applied voltage is spread over the array of floating gates clamping the maximum electric field at a value that is less than the avalanche breakdown field. Then, the avalanche breakdown voltage of the device is increased.