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:
Aug. 23, 2022
Filed:
Sep. 26, 2019
Apple Inc., Cupertino, CA (US);
Jian Guo, Milpitas, CA (US);
Harish Venkataraman, Half Moon Bay, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
A configurable AC/DC readout architecture that can be operated in an AC measurement mode or a DC measurement mode is disclosed. The configurable AC/DC architecture can utilize shared circuitry such as amplifiers and analog-to-digital converters (ADCs). The configurable AC/DC readout can be used other sensor configurations where both AC and DC measurement signals can captured and require readout and conversion to digital signals. The configurable AC/DC readout architecture can include a filter configured to filter out a DC signal component in the AC measurement mode. The configurable AC/DC readout architecture can include a bypass witch to bypass the filter in the DC measurement mode. A programmable gain amplifier can adjust the signal amplitude of DC or AC signals to allow use of a shared analog-to-digital converter.