Patent · US Active

Detection and prevention of non-linear excursion in a haptic actuator

US12159528B2 · kind B2 · utility

0Cited by

3References

20Claims

0Family size

Assignee

CIRRUS LOGIC, INC. · US

Inventors

Marco A. JANKO · Austin, US
Filippo Rossi · Bovolone, IT
Hamid SEPEHR · London, GB
Kyle Wilkinson · South Lake Tahoe, US
Emmanuel Marchais · Dripping Springs, US
Vadim Konradi · Austin, US
Anil Lal · Hounslow, GB
Aleksey S. Khenkin · Nashua, US
Chin Huang Yong · Austin, US

Key dates

Filing date	Dec 14, 2022
Grant date	Dec 3, 2024
Priority date	—
Expiry date	Feb 21, 2043

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB06B2201/53
WIPO fieldControl
WIPO sectorInstruments

Abstract

A method for determining and mitigating over-excursion of an internal mass of an electromechanical transducer may include measuring a sensed signal associated with the electromechanical transducer in response to a driving signal driven to the electromechanical transducer, determining a non-linearity value based on the sensed signal, mapping the non-linearity value to a probability of over-excursion of the internal mass, and applying a gain to a signal path configured to generate the driving signal based on the probability.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.