Patent · US Active

Apparatus, method and computer program for detecting defects

US11953468B2 · kind B2 · utility

0Cited by

0References

20Claims

0Family size

Assignee

NOKIA TECHNOLOGIES OY · FI

Inventors

Christopher Wright · London, GB
Phil Catton · Cambridge, GB
Wai Lau · London, GB

Key dates

Filing date	Jun 16, 2021
Grant date	Apr 9, 2024
Priority date	—
Expiry date	Jan 20, 2042

Classification

Technology area (CPC H)Electricity
CPC primaryH04R29/00
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

According to various, but not necessarily all, embodiments there is provided an apparatus comprising means for: controlling one or more electroacoustic transducers of a device to create a standing wave having a displacement antinode at an expected location of a component of the device; receiving a signal representing sound generated by vibration of the component driven by the standing wave; causing analysis of the signal to determine whether there is a defect based on whether the signal represents a sound that would be expected to result from vibration of the component driven by the standing wave in the absence of a defect.

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