Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Reexamination Certificate
2006-08-31
2009-12-15
Le, Thanh C (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
C455S307000
Reexamination Certificate
active
07634242
ABSTRACT:
A system for implementing a tuner comprising a Radio Frequency (RF) circuit, a filter disposed in a signal path in said RF circuit, a first negative resistance unit in communication with said filter adapted to cancel one or more resistive elements in said filter, a frequency measurement unit in communication with said filter, wherein said first negative resistance unit is adapted to cause said filter to act as an oscillator, and wherein said frequency measurement unit is adapted to measure oscillations of said filter and to calculate a center frequency of said filter therefrom.
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Fulbright & Jaworski L.L.P.
Le Thanh C
Microtune ( Texas), L.P.
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