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. 10, 2020
Filed:
Dec. 05, 2019
Invensense, Inc., San Jose, CA (US);
Omid Oliaei, Sunnyvale, CA (US);
Peter George Hartwell, Menlo Park, CA (US);
INVENSENSE, INC., San Jose, CA (US);
Abstract
A modulator system for converting a current-varying sensor output to a digital representation is disclosed. The modulator system includes a resonator with a first resonator input and a second resonator input. The first resonator input carries a constant reference current and the second resonator input carries a varying input current. In response to a digital output, the resonator generates a complementary voltage output based on a difference between the constant reference current and the varying input current during a conversion time. The resonator resonates near or at zero frequency. An accumulated digital output is based on the accumulation of the digital output generated at each sampling clock cycle of the conversion time and represents a digital word proportional to the varying input current.