Telecommunications – Receiver or analog modulated signal frequency converter – Frequency modifying or conversion
Reexamination Certificate
2011-08-30
2011-08-30
Urban, Edward (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Frequency modifying or conversion
C455S307000, C455S259000, C327S120000, C331S076000
Reexamination Certificate
active
08010075
ABSTRACT:
A high-order harmonics generator includes a plurality of high-pass filters to block out DC signals. In one embodiment, high-pass filters are coupled to the output signals from an envelope detector and a power detector. A high-pass filter can also be coupled to the output of a multiplier that multiplies the filtered envelope signal and the filtered power signal. Additional multipliers may also be used at outputs of multipliers in a cascaded chain of multipliers for higher harmonics generation.
REFERENCES:
patent: 3706048 (1972-12-01), Johnston
patent: 4398153 (1983-08-01), Rittenbach
patent: 4959557 (1990-09-01), Miller
patent: 5059927 (1991-10-01), Cohen
patent: 5978662 (1999-11-01), Swales
patent: 7119588 (2006-10-01), Kelley
Haynes and Boone LLP
Hu RuiMeng
Scintera Networks Inc.
Urban Edward
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