The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 04, 2008
Filed:
Mar. 29, 2007
Christopher Paul, Bayport, NY (US);
Christopher Paul, Bayport, NY (US);
Symbol Technologies, Inc., Holtsville, NY (US);
Abstract
A multiplexing circuit uses parallel-configured pairs of resistors and signal sources 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 signal source. One circuit includes a microprocessor having an analog-to-digital (ADC) input; a memory communicatively coupled to the microprocessor; and a voltage divider network having an output coupled to the ADC input, wherein the network includes a plurality of resistors paired with a plurality of respective signal sources, and wherein the output is unique for each combination of states of the signal sources in accordance with a known relation that is stored in the memory. The signal sources are selected from two categories of sources: continuous sources and discrete sources, where discrete sources may be binary discrete or random discrete. In one embodiment, the first signal source is either a continuous source or a random discrete source, and the second signal is a binary discrete source.