Wave transmission lines and networks – Attenuators
Reexamination Certificate
2011-06-21
2011-06-21
Jones, Stephen E (Department: 2817)
Wave transmission lines and networks
Attenuators
C327S308000
Reexamination Certificate
active
07965152
ABSTRACT:
An attenuator system comprises an attenuator and a control circuit for controlling the attenuation of the attenuator. In one embodiment, the attenuator comprises two diodes or two diode connected transistors, and the control circuit comprises two transistors as the only active devices. In another embodiment, the control circuit comprises another transistor in a shut down circuit.
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Chang Mau-Chung Frank
Chow Pei-Ming Daniel
Kobayashi Bun
Schell Steven W.
Jones Stephen E
King & Spalding L.L.P.
Microchip Technology Incorporated
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