公开(公告)号：US20240302322A1

公开(公告)日：2024-09-12

申请号：US18594434

申请日：2024-03-04

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： James WELLS ,  Gagan MIDHA ,  Gordon J. BATES ,  Sunil SAUNDERS

IPC: G01N27/416

CPC classification number: G01N27/4163

Abstract: Circuitry for processing a response from an electrochemical cell to a stimulus, the circuitry comprising: sense circuitry configured to measure the response of the electrochemical cell to the stimulus; and processing circuitry configured to: sample the measured response to obtain a plurality of samples; and output the plurality of samples, wherein the processing circuitry is operable in: a continuous sampling mode in which the processing circuitry is configured to periodically sample the measured response at a fixed sampling rate; a discontinuous sampling mode in which the processing circuitry is configured to periodically sample the measured response during macro periods separated by macro intervals during which sampling of the measured response is disabled.

公开(公告)号：US20180039769A1

公开(公告)日：2018-02-08

申请号：US15667849

申请日：2017-08-03

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Sunil SAUNDERS ,  Robert David RAND ,  Robert James HATFIELD ,  John Laurence PENNOCK

IPC: G06F21/32 ,  G06K9/62 ,  G06F1/32 ,  G06K9/00 ,  G10L17/22

Abstract: An electronic device, comprising one or more input devices, for receiving biometric input from a user and generating one or more biometric input signals; an applications processor; a mixer configurable by the applications processor to provide a first signal path between one or more of the input devices and the applications processor; and a biometric authentication module coupled to the one or more input devices via a second signal path that does not include the mixer, for performing authentication of at least one of the one or more biometric input signals.