Distribution network communication system having branch connected repeaters

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4250489
SERIAL NO

05956516

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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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 central control terminal with multiple remote terminals via a distribution line network. Each repeater retransmits an interrogation message, provides its own repeater address modification, and remains in a response-wait status. The alerted repeaters define the predetermined route of branch paths for being sequentially activated by a response message. Simplified repeater response address formats are used and each repeater modified its address data upon response message retransmission. The desired sequentially occurring repeating transmissions are assured upon retransmission of both the interrogation and response messages.

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Patent Owner(s)

  • ABB POWER T&D COMPANY INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dudash, Allan A Raleigh, NC 2 394
Melvin, Jr Waymon A Raleigh, NC 6 593
Vercellotti, Leonard C Oakmont, PA 21 1486

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