Telecommunications – Receiver or analog modulated signal frequency converter – Frequency modifying or conversion
Reexamination Certificate
2007-09-18
2007-09-18
Urban, Edward F. (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Frequency modifying or conversion
C455S209000, C455S258000, C455S260000, C455S265000
Reexamination Certificate
active
10881579
ABSTRACT:
A system and method are disclosed for dynamically selecting high-side injection or low-side injection of local oscillator mixing signals based upon an assessment of signal power within the input signal spectrum that could cause unwanted images in the processed signal. This image rejection assessment provides an advantageous basis upon which to make dynamic high-side versus low-side injection determinations.
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Kasha Dan B.
Kerth Donald A.
Tuttle G. Tyson
Le Nhan T.
O'Keefe, Egan, Peterman & Ender LLP
Silicon Laboratories Inc.
Urban Edward F.
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