Telecommunications – Receiver or analog modulated signal frequency converter – Frequency modifying or conversion
Reexamination Certificate
2006-07-11
2006-07-11
Urban, Edward F. (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Frequency modifying or conversion
C455S343200, C455S314000, C327S116000, C327S355000
Reexamination Certificate
active
07076231
ABSTRACT:
A receiver apparatus is provided with a receiver section including an amplifying stage for amplifying a high frequency signal received by an antenna, a frequency converting stage for converting a frequency of the output signal of the amplifying stage, a local oscillator for supplying a local oscillating signal to the frequency converting stage, and a signal processing section for supplying a control signal to the receiver section depending on signal intensity inputted to the receiver section, or to the signal processing section from the receiver section. The frequency converting section includes a plurality of parallel frequency converters, and an adder for adding output signals of the frequency converters. The signal processing section controls the number of the frequency converters to be operated.
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Behazad Razavi, “RF MICROELECTRONICS”, Prentice Hall PTR, pp. 122-129, 138-144, 146-147 and 209-231.
Okuma Yasuyuki
Tanaka Satoshi
Yamawaki Taizo
A. Marquez, Esq. Juan Carlos
Chow Charles
Fisher Esq. Stanley P.
Hitachi , Ltd.
Reed Smith LLP
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