Gerald C Dipiazza from 203 Dundee Dr, Edenton, NC 27932, Phone: 252-482-1444

Us Patents

Matched Broadband Switch Matrix With Active Diode Isolation
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US Patent:

6496082, Dec 17, 2002
Filed:

Sep 25, 2001
Appl. No.:

09/962820
Inventors:

Gerald Charles DiPiazza - Edenton NC
Assignee:

Tyco Electronics Corporation - Middletown PA
International Classification:

H01P 115
US Classification:

333101, 333103, 333105, 333116, 333 81 R, 333262, 385 16
Abstract:

A method and apparatus are disclosed for isolating a selected switching connection, within a switch matrix. The switching connection is isolated by forming two shunt stubs, or equivalent lumped circuits, each having an electrical length such that the input impedance of the shunt stub is high. The shunt stubs are formed on the appropriate input and output signal lines of the switch matrix on the side distant from the side of the input and output lines preferred for the propagation of the signal. The switch matrix may be constructed within and on a glass substrate.

Switched Reactance Phase Shifters
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US Patent:

6600294, Jul 29, 2003
Filed:

Jan 23, 2002
Appl. No.:

10/055527
Inventors:

Gerald Charles DiPiazza - Edenton NC
Assignee:

Tyco Electronics Corp. - Middletown PA
International Classification:

G05F 100
US Classification:

323212, 323210
Abstract:

A phase shifter is disclosed in which parasitic elements in a microelectromechanical system (MEMS) switch are designed and utilized to provide a predetermined phase shift. In one embodiment, a circuit containing three MEMS switching modules, each of which includes a pair of series-coupled reactances is described. The first reactance is determined by an inductor, the second by a capacitor representing the MEMS switch contact in either the up or down positions, and wherein the capacitive reactance is greater than the inductive reactance for the MEMS switch contact in the up position and less than the inductive reactance for the MEMS switch in the down position. The three MEMS switching modules are configured such that a switched high pass/low pass phase shifter topology can be realized with the appropriate actuation of the MEMS switch contacts. In another embodiment, two MEMS switching modules, that include two series-coupled reactances, are coupled via tuning stubs, each having a predetermined electrical length, to a main transmission line. The first reactance is determined by an inductor, the second by a capacitor representing the MEMS switch contact in either the up or down positions, and wherein the capacitive reactance is greater than the inductive reactance for the MEMS switch contact in the up position and less than the inductive reactance for the MEMS switch in the down position.

System And Method To Wirelessly Communicate Information Between Traffic Control Signs And Vehicles
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US Patent:

7167104, Jan 23, 2007
Filed:

Jun 16, 2004
Appl. No.:

10/869411
Inventors:

Gerald Charles DiPiazza - Edenton NC, US
Assignee:

M/A-Com, Inc. - Lowell MA
International Classification:

G08B 1/09
US Classification:

340905, 3405391, 340901, 340933, 340936, 701117, 701119
Abstract:

A system and method to wirelessly communicate information between traffic control signs and vehicles are provided. The method includes wirelessly communicating traffic control information from a traffic control sign to a vehicle and wirelessly communicating vehicle information from the vehicle to the traffic control sign.

Radio Frequency Locator System
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US Patent:

7397381, Jul 8, 2008
Filed:

Nov 1, 2005
Appl. No.:

11/264563
Inventors:

Gerald Charles DiPiazza - Edenton NC, US
Assignee:

M/A-COM, Inc. - Lowell MA
International Classification:

G08B 23/00
US Classification:

3405731, 34053913, 3406916, 34082549, 455457
Abstract:

A radio frequency locator system is provided that includes a plurality of locator elements configured to communicate using a radio frequency identification (RFID) communication system and at least one communication device configured to receive locator information from at least one of the plurality of locator elements. The radio frequency locator system further includes a user interface configured to display location information based on the received locator information and includes a plurality of user input fields configured to receive a user input to define a search criteria.

Wireless Traffic Control System
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US Patent:

7397390, Jul 8, 2008
Filed:

Jul 15, 2004
Appl. No.:

10/891893
Inventors:

Gerald Charles DiPiazza - Edenton NC, US
Assignee:

M/A-COM, Inc. - Lowell MA
International Classification:

G08B 1/00
US Classification:

340905, 340906, 340916, 340917
Abstract:

A wireless traffic control system and method for wirelessly communicating information using traffic control signs are provided. The method includes wirelessly transmitting at least one of traffic control information and vehicle information from a traffic control sign and wirelessly receiving the information transmitted from the traffic control sign by at least one other traffic control sign.

Millimeter Wave Communication System
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US Patent:

7697929, Apr 13, 2010
Filed:

May 20, 2004
Appl. No.:

10/849579
Inventors:

Gerald C. DiPiazza - Edenton NC, US
Assignee:

Pine Valley Investments, Inc. - Las Vegas NV
International Classification:

H04W 4/00
H04M 11/04
US Classification:

4554261, 4554041, 4554042
Abstract:

A communication system includes a first communication module, and a second communication module. The first communication module may receive a first type of communication signal (e. g. a mobile telephone signal) and convert it into a second-type of communication signal (e. g. , a millimeter wave radio signal). The first type of communication signal may be a mobile telephone signal from a first fire fighter's mobile telephone who is located outside of the building. The first communication module may transmit the second-type of communication signal to the second communication module.

Millimeter Wave Communication System
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US Patent:

8078161, Dec 13, 2011
Filed:

Mar 9, 2010
Appl. No.:

12/720318
Inventors:

Gerald C. DiPiazza - Edenton NC, US
Assignee:

Pine Valley Investments, Inc. - Las Vegas NV
International Classification:

H04W 4/00
H04M 11/04
US Classification:

4554261, 4554041, 4554262, 4554042, 455 7, 455 111, 455 131, 455 16, 4554561, 379 36, 379338, 379 38, 379 43, 379 47, 379 48, 379 49, 379 50
Abstract:

A communication system includes a first communication module, and a second communication module. The first communication module may receive a first type of communication signal (e. g. a mobile telephone signal) and convert it into a second-type of communication signal (e. g. , a millimeter wave radio signal). The first type of communication signal may be a mobile telephone signal from a first fire fighter's mobile telephone who is located outside of the building. The first communication module may transmit the second-type of communication signal to the second communication module.

Stored Program Controlled Module Amplifier Bias And Amplitude/Phase Compensation Apparatus
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US Patent:

51011735, Mar 31, 1992
Filed:

Nov 28, 1990
Appl. No.:

7/620507
Inventors:

Gerald C. DiPiazza - Boxford MA
Mark J. Peterson - McKinney TX
Assignee:

The United States of America as represented by the Secretary of the Air
Force - Washington DC
International Classification:

H03G 320
US Classification:

330136
Abstract:

A stored program amplifier compensation apparatus utilizing sensing elements to provide the operational states of an RF power amplifier to a controller processor unit which utilizes the operational data to provide a bias control signal to the RF power amplifier. Look-up tables which are stored in the controlled processor unit, contain a bias control signal for all the possible operational combinations.