Ultra-low power flexible piezoelectric audio recognition sensor for internet of things

KJ Lee, JH Han, D Joe - US Patent 10,436,631, 2019 - Google Patents
Disclosed is a piezoelectric voice recognition sensor, which includes a flexible thin film, a
piezoelectric material layer laminated on the flexible thin film, and an electrode laminated on …

Methods for clear call under noisy conditions

F Weng - US Patent App. 17/544,900, 2022 - Google Patents
This invention provides a new and improved voice communication system with high quality
noise cancellation method and devices to overcome the limitations and difficulties …

Protection against voice misappropriation in a voice interaction system

SM DiMaria - US Patent 11,881,218, 2024 - Google Patents
Prevention of voice misappropriation in voice interaction/response systems. The system
relies on telemetry data, including thermal data of components to determine whether a …

System for converting vibration to voice frequency wirelessly

CM Huang, TJ Lin - US Patent 11,363,386, 2022 - Google Patents
The present application discloses a system for converting vibration to voice frequency
wirelessly and a method thereof. By sensing a first vibration variation data and a voice …

Selection between signal sources based upon calculated signal to noise ratio

HAC Maruri, J Huang, PL Meyer… - US Patent 10,847,173, 2020 - Google Patents
Apparatuses and methods for selecting, for communicating, between signals provided by
various pickups on the basis of a calculated signal to noise ratio (SNR) are disclosed. The …