Universal tuner for mobile TV
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United States of America Patent
Stats
-
Jul 5, 2011
Grant Date -
Oct 23, 2008
app pub date -
Apr 19, 2007
filing date -
Apr 19, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A tuner for use in mobile television devices comprises at least one RF front end component comprising a LNA adapted to amplify mobile television signals; a PLL circuit to generate signals; and a pair of mixers to receive the signals from the LNA and the PLL circuit and downconvert the signals; an analog baseband component connected to the RF front end component, wherein the analog baseband component comprises I and Q channel signal paths each comprising a tunable high order impedance filter; at least one signal amplification stage; and a signal filter stage connected to the signal amplification stage, wherein the analog baseband component further comprises a plurality of switches operatively connected to the I and Q channel signal paths, and wherein the plurality of switches are selectively opened and closed in multiple configurations in order to allow the tuner to receive mobile TV signals for all mobile TV standards.
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Family
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