Force sensing system and method

US11269509B2 · kind B2 · utility

Assignee

• CIRRUS LOGIC, INC. · US

Inventors

• Hamid SEPEHR · London, GB
• Pablo Peso Parada · London, GB
• Willem Zwart · Edinburgh, GB
• Tom Birchall · London, GB
• Michael A. Kost · Austin, US
• Tejasvi Das · Austin, US
• Siddharth Maru · Austin, US
• Matthew BEARDSWORTH · Austin, US
• Bruce E. Duewer · Austin, US

Key dates

• Filing date: Oct 21, 2020
• Grant date: Mar 8, 2022
• Expiry date: Oct 21, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04M2250/22
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A force sensing system for determining if a user input has occurred, the system comprising: an input channel, to receive an input from at least one force sensor; an activity detection stage, to monitor an activity level of the input from the at least one force sensor and, responsive to an activity level which may be indicative of a user input being reached, to generate an indication that an activity has occurred at the force sensor; and an event detection stage to receive said indication, and to determine if a user input has occurred based on the received input from the at least one force sensor.