1
Allan A Dudash, Waymon A Melvin Jr, Leonard C Vercellotti: Distribution network communication system having branch connected repeaters. Westinghouse Electric, R W Smith, February 10, 1981: US04250489 (300 worldwide citation)

Bidirectional addressable repeaters of a power line carrier communication system each include an address recognition and a receive and transmit control logic circuit having programmable zone and address identifying states for connection in plural repeating levels defining branch paths linking a cent ...


2
Leonard C Vercellotti, Alan F Mandel, Richard J Ravas, John C Schlotterer, James A Neuner: Dual mode electronic identification system. Westinghouse Electric, G R Jarosik, May 31, 1994: US05317309 (238 worldwide citation)

A dual mode electronic identification system using a tag which has a RF receiver and transmitter contained therein. In the first mode the tag responds to an interrogation signal by transmitting identification data to the interrogator. In the second mode the tag periodically transmits an identificati ...


3
Leonard C Vercellotti, John C Schlotterer: Electronic identification tag interrogation method. Westinghouse Electric, D Schron, November 30, 1993: US05266925 (154 worldwide citation)

An electronic identification tag interrogation method is provided in which a portal transmits an interrogation signal which is received by an electronic identification tag within its field of range. The interrogation signal includes an address which requests a response from every tag having an addre ...


4
Leonard C Vercellotti, Dirk J Boomgaard: Transmission of data via power lines. ABB Power T & D Company, A J Rossi, October 9, 1990: US04962496 (98 worldwide citation)

A method for transmitting data in the form of a sequence of data words according to PLBus communications protocol in a channel (20) carrying data transmitted, according to a different protocol, in the form of timed bursts of a signal, comprising: producing (16) a carrier which is continuous at least ...


5
Leonard C Vercellotti, Ian A Whyte: Power line carrier communication system for signaling customer locations through ground wire conductors. Westinghouse Electric Corporation, R W Smith, April 5, 1977: US04016429 (94 worldwide citation)

Carrier current signals are impressed to and detected from grounding conductors connected to the power system and to real earth ground. The communication links provided by the grounded neutral conductors of the power system and by the real earth ground return path transmit the carrier communication ...


6
Kenneth E Daggett, Eimei M Onaga, Richard J Casler Jr, Barrett L Booth, Rajan C Penkar, Leonard C Vercellotti, Richard A Johnson: Digital control for multiaxis robots. Unimation, J L Brzuszek, November 22, 1988: US04786847 (84 worldwide citation)

A completely digital robot control operates at a predetermined sampling rate. The robot arm has a plurality of joints with each driven by an electric brushless or brush-type DC motor which is in turn supplied with drive current by a power amplifier bridge circuit having power switches connected ther ...


7
Leonard C Vercellotti, Arthur A Anderson: Method of mapping refrigerated containers in a power line carrier based monitoring system. Thermo King Corporation, D R Lackey, January 23, 1990: US04896277 (75 worldwide citation)

A method of mapping addresses of a plurality of refrigerated containers having remote monitoring units (RMUs) connected to a power line carrier based monitoring system which includes a master monitoring unit (MMU). The method adapts to the size of the expected number of containers to be mapped by an ...


8
Leonard C Vercellotti, Arthur A Anderson, David A Christiansen, Dannis R Johnson, Laurence R Brickner, Robert G Colclaser III, John G Leddy: Power line carrier communication system for monitoring refrigerated containers. Thermo King Corporation, December 5, 1989: US04885564 (52 worldwide citation)

A power line carrier communication system for monitoring refrigerated containers which includes a master monitoring unit and a first power line interface which interchange messages in a first format. The first power line interface translates the first format to a second format suitable for power lin ...


9
Ian A Whyte, Leonard C Vercellotti, James P McGivern: Signal repeater for a distribution network communication system. Westinghouse Electric, R W Smith, July 1, 1980: US04210901 (38 worldwide citation)

A distribution network power line communication system divided into addressable communication zones defined by signal repeaters located at spaced intervals along the distribution network. The signal repeaters are switchably disposed in signal communication between the primary and grounded neutral co ...


10
Robert M Oates, Leonard C Vercellotti, J Richard Hansen, Joseph C Engel: Light driven remote system and power supply therefor. ASEA Brown Boveri, B R Studebaker, March 27, 1990: US04912522 (35 worldwide citation)

A light driven remote system and power supply therefor that includes a laser diode that provides pulses of light to a fiber optic cable. The pulses of light are detected by a remote photodiode that is connected in parallel with a step-up transformer. The output of the step-up transformer is filtered ...