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:
Apr. 20, 2021
Filed:
Dec. 19, 2019
Qualcomm Incorporated, San Diego, CA (US);
Baptiste Grave, Douglas, IE;
Keith Anthony O'Donoghue, Carrigaline, IE;
QUALCOMM INCORPORATED, San Diego, CA (US);
Abstract
A system includes a bandgap voltage generator coupled to a voltage supply and configured to produce a plurality of reference voltage levels in response to a plurality of calibration codes; an analog-to-digital converter (ADC) coupled to a reference voltage output of the bandgap voltage generator; a logic circuit coupled to an output of the ADC; a first memory element coupled to the logic circuit and configured to store a calibration coefficient indicative of a relationship of the calibration codes and the reference voltage levels; and a second memory element coupled to the logic circuit and configured to store a value of a first reference voltage level for the reference voltage output, wherein the logic circuit is configured to generate a first calibration code from the value of the first reference voltage level and the calibration coefficient.