Digital video distribution system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6160544
SERIAL NO

08967978

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A digital video distribution system is disclosed which includes video terminals connected within a LAN and distributes video from a certain terminal to destination terminals, simultaneously. In this system, each transmitter terminal has an encoder that converts analog video information from a corresponding video source to digitally compressed video information. A hub are connected to the video terminals to distribute digitally compressed video information from a transmitter terminal to multiple destination (receiver) terminals in accordance with a multicast communication protocol. Each of the receiver terminals has an address filter for selecting a packet from among multicast communication packets that has a desired source address as valid video information. The receiver further has a decoder for converting digitally encoded information received as valid to original analog video information with expansion.

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Patent Owner(s)

  • NTT ELECTRONICS CORPORATION;PHILIPS ELECTRONICS NORTH AMERICA CORPORATION;TOKYO BROADCASTING SYSTEM, INC.

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hayashi, Toshinari Tokyo, JP 4 135
Okunaka, Junzo Funabashi, JP 1 115

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