Receiver and radio communication terminal using the same

Details Receiver and radio communication terminal using the same Receiver and radio communication terminal using the same

2006-02-07

2006-02-07

Le, Lana (Department: 2685)

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

C455S334000, C455S307000, C455S209000

Reexamination Certificate

active

06996384

ABSTRACT:
Disclosed is a small-size receiver that exhibits high sensitivity when used with a plurality of frequencies or a plurality of radio communication systems. To provide a small-size, high-sensitivity, direct conversion receiver for use with a plurality of frequencies or a plurality of radio communication systems, the present invention has a high-frequency-input signal path for a low-noise amplifier optimized for use with various frequencies or radio communication systems. The high-frequency-input signal path includes at least one band-pass filter and its input and output matching circuits. A low-loss switching means is used to connect an optimum high-frequency-input signal path to the low-noise amplifier in accordance with a selected operation mode.

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patent: WO 97/41643 (1997-11-01), None

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