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:
Sep. 06, 1994
Filed:
Apr. 12, 1993
Mark H Babcock, Austin, TX (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
Circuitry for converting analog signal voltages to digital values comprises an analog-to-digital (A/D) converter (170) for receiving an analog signal voltage and analog reference voltages and for generating in accordance therewith a first digital value. The circuitry further comprises first and second digital-to-analog (D/A) converters (175, 180) coupled to the A/D converter (170) for providing the analog reference voltages to the A/D converter (170). A controller (120) coupled to the first and second D/A converters (175, 180) and the A/D converter (170) receives the first digital value and generates therefrom at least a second digital value for subsequent transmission to at least one of the first and second D/A converters (175 or 180), in response to which the at least one of the first and second D/A converters (175 or 180) adjusts at least one of the analog reference voltages provided to the A/D converter (170).