Telecommunications – Receiver or analog modulated signal frequency converter – Frequency modifying or conversion
Reexamination Certificate
2007-11-06
2007-11-06
Tran, Pablo N. (Department: 2685)
Telecommunications
Receiver or analog modulated signal frequency converter
Frequency modifying or conversion
C455S323000, C455S190100, C455S131000, C375S325000, C375S350000, C327S113000, C327S103000
Reexamination Certificate
active
09770675
ABSTRACT:
Frequency translation and applications of same are described herein, including cable modem applications. Such applications include, but are not limited to, frequency down-conversion, frequency up-conversion, enhanced signal reception, unified down-conversion and filtering, and combinations and applications of same. Furthermore, QAM, QPSK, and other modulation techniques are also described.
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ParkerVision, Inc.
Sterne Kessler Goldstein & Fox P.L.L.C.
Tran Pablo N.
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