Transmission control system in data terminal equipment

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United States of America Patent

PATENT NO 5450402
SERIAL NO

08221610

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Data communication is started when a first B channel is established between a source terminal and a destination terminal. Immediately before or after the start of a data transmission phase, the destination terminal is called a second time so that a second B channel may be established. Immediately before or after the data transmission phase, the use of one of the B channels is terminated. Accordingly, time required for data communication can be reduced.

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Patent Owner(s)

  • RICOH COMPANY, LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shobu, Toshifumi Atsugi, JP 7 148

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