Telecommunications – Transmitter and receiver at same station – With transmitter-receiver switching or interaction prevention
Reexamination Certificate
2008-05-13
2008-05-13
Milord, Marceau (Department: 2618)
Telecommunications
Transmitter and receiver at same station
With transmitter-receiver switching or interaction prevention
C455S114200, C455S114300, C455S324000, C455S080000, C327S538000, C327S333000, C327S540000, C375S212000, C375S220000, C375S257000, C315S244000
Reexamination Certificate
active
07373114
ABSTRACT:
This invention provides a signal transmission circuit, a signal output circuit, and a termination method of a signal transmission circuit capable of preventing the re-reflection of the signal at a transmitting node of a transmission path even when an impedance of a signal output circuit does not match a characteristic impedance of a transmission path. On a signal transmission circuit composed of a transmission path, a signal output circuit connected to a transmitting node of the transmission path, and a signal receiver circuit connected to a receiving node of the signal transmission path, in order to prevent the re-reflection of an output signal of a signal output unit at the transmitting node via the receiving node, a correction current generator unit is provided for outputting correction current with a predetermined current amount and at a predetermined timing set in a current amount/timing control section, to the transmitting node.
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Kawashimo Tatsuya
Yagyu Masayoshi
Yamashita Hiroki
Yuuki Fumio
Hitachi , Ltd.
Mattingly ,Stanger ,Malur & Brundidge, P.C.
Milord Marceau
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