Telecommunications – Receiver or analog modulated signal frequency converter – With wave collector
Reexamination Certificate
2009-06-18
2011-12-27
Nguyen, Lee (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
With wave collector
C455S137000
Reexamination Certificate
active
08086201
ABSTRACT:
A diversity receiving device includes two signal paths. Each path interfaces an antenna that receives a radio frequency signal and an amplifier that amplifies the received radio frequency signal. A variable signal level attenuator in each path attenuates the amplified signal and receives current from current sources. The current sources are coupled to the amplifiers through variable signal level attenuators. The variable signal level attenuators are in parallel with controllable bypass lines which comprise variable resistance elements. The two signal paths are combined into a common path.
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AKG Acoustics GmbH
Brinks Hofer Gilson & Lione
Nguyen Lee
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