Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2005-02-22
2005-02-22
Tse, Young T. (Department: 2637)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C375S219000
Reexamination Certificate
active
06859502
ABSTRACT:
A transmitting and receiving apparatus including a modulating circuit for modulating an input digital data; a first frequency converting circuit for converting a signal output from the modulating circuit into a signal of a predetermined frequency, an amplifying/branching circuit for amplifying and branching a signal output from the first frequency converting circuit; a second frequency converting circuit for converting a signal output from the amplifying branching circuit, into a signal of a predetermined frequency; and a demodulating circuit for demodulating digital data from a signal output from the second frequency converting circuit.
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Arii Koji
Tanaka Shotaro
Tatsuta Akihiro
Matsushita Electric - Industrial Co., Ltd.
Smith , Gambrell & Russell, LLP
Tse Young T.
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