Methods and apparatus for multiplexed digital inputs using...

Details Methods and apparatus for multiplexed digital inputs using... Methods and apparatus for multiplexed digital inputs using...

2007-07-24

2007-07-24

Jeanglaude, Jean Bruner (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S029000, C341S154000, C341S131000

Reexamination Certificate

active

11291657

ABSTRACT:
A multiplexing circuit uses parallel-configured switch/resistor pairs in a voltage divider network in such a way that a single analog-to-digital input can be used to specify the state of more than one switch or other component. One circuit includes a reference voltage node, a ground node, and an output node, wherein a switched voltage divider network is configured such that the voltage at the output node is unique for every given combination of switch states.

REFERENCES:
patent: 4733216 (1988-03-01), Wright
patent: 5568143 (1996-10-01), Hutchison et al.
patent: 5969659 (1999-10-01), Balch et al.
patent: 6178388 (2001-01-01), Claxton
patent: 6476753 (2002-11-01), Hansen et al.
patent: 7064682 (2006-06-01), Fedigan

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