Telecommunications – Receiver or analog modulated signal frequency converter – Noise or interference elimination
Reexamination Certificate
2006-10-03
2006-10-03
Vo, Nguyen T. (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Noise or interference elimination
C340S315000
Reexamination Certificate
active
07116962
ABSTRACT:
When power is supplied from a power transmitting side device1, a FET103is turned ON and +12V direct current of a power source101is supplied to respective power receiving side devices. When transmission data is transmitted from the power transmitting side device1, +5V direct current of a power source201-1is supplied to a terminal a, and a transistor104is turned ON/OFF due to a pulse-like voltage change of the transmission data, whereby the transmission data becomes a pulse-like 0V+5V output waveform, and is output to the respective power receiving side devices. When the power transmitting side device1receives reply data from the power receiving side device, the power receiving side device changes a voltage to a 3.5V+5V pulse as reply data. A photocoupler105detects the voltage change, whereby the power transmitting side device1receives the reply data from the power receiving side device.
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Miyagaki Mituo
Mizuta Yoshinari
Tazaki Hiroo
Nguyen Tu X.
Sekisuijushi Co., Ltd.
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