Wave transmission lines and networks – Attenuators
Reexamination Certificate
2011-01-14
2011-10-04
Jones, Stephen (Department: 2817)
Wave transmission lines and networks
Attenuators
Reexamination Certificate
active
08031031
ABSTRACT:
An attenuator includes a T-type two terminal pair network including first and second terminals, first, second and third circuits, wherein the first terminal receives an input signal to be attenuated, wherein the first circuit is connected between the first and second terminals, wherein the second circuit is connected between the first circuit and the second terminal and is connected to the first circuit via a node, wherein the third circuit is connected to the node, and a capacitor connected to the node, wherein the capacitance value of the capacitor is variable.
REFERENCES:
patent: 4216445 (1980-08-01), Abajian
patent: 4222066 (1980-09-01), Zelenz
patent: 2000-286659 (2000-10-01), None
Jones Stephen
McGinn IP Law Group PLLC
Renesas Electronics Corporation
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