Transmitter/receiver circuit and transmission/reception method
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United States of America Patent
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Apr 17, 2012
Grant Date -
Jul 9, 2009
app pub date -
Dec 27, 2006
filing date -
Dec 27, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
There are provided a transmitter/receiver circuit and a transmission/reception method that can reduce the insertion loss of a circuit in a hybrid operation and are suitable for reducing the cost, size, and power consumption. An antenna switch 119 includes attenuation filters 201 to 203 for attenuating the frequency bands corresponding to a plurality of receiving systems, e.g., the frequency band of an 800 MHz band system, the frequency band of a 2 GHz band system, and GPS reception frequency components. These filters 201 to 203 are connected between a primary (main) antenna connection terminal T204 and a first switch group SWG201 through connection switches 204 to 206.
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