Matching for time multiplexed resistors

Details Matching for time multiplexed resistors Matching for time multiplexed resistors

2005-12-21

2008-11-11

Patel, Rajnikant B (Department: 2838)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

Integrated structure

C374S178000

Reexamination Certificate

active

07449943

ABSTRACT:
An embodiment of the present invention is directed to a method of matching time-multiplexed resistors to a known ratio including generating a control signal from a control circuit, which includes a value that defines a configuration. The method also includes receiving the control signal at a switching circuit, detecting whether the value of the control signal has changed, and, provided the value has changed, switching a plurality of resistors from a first configuration to a second configuration. The first configuration produces a first resistance, and the second configuration produces a second resistance. The ratio of the first resistance and the second resistance are the aforementioned known ratio.

REFERENCES:
patent: 4071813 (1978-01-01), Dobkin
patent: RE30586 (1981-04-01), Brokaw
patent: 5196740 (1993-03-01), Austin

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