Audio buffer catch-up apparatus and method with two microphones

R Raghuvir - US Patent 10,121,472, 2018 - Google Patents
A first microphone is operated in a low power sensing mode, and a buffer at the first
microphone is used to temporarily store at least some of the phrase. Subsequently the first …

VAD detection microphone and method of operating the same

CE Fürst, H Thomsen, M Deruginsky, D Nandy… - US Patent …, 2017 - Google Patents
(57) ABSTRACT A microphone includes a microelectromechanical system (MEMS) circuit
and an integrated circuit. The MEMS circuit is configured to convert a voice signal into an …

Acoustic activity detection apparatus and method

D Nandy, Y Li, H Thomsen, C Furst - US Patent 9,502,028, 2016 - Google Patents
Streaming audio is received. The streaming audio includes a frame having plurality of
samples. An energy estimate is obtained for the plurality of samples. The energy estimate is …

VAD detection microphone and method of operating the same

CE Fürst, H Thomsen, M Deruginsky, D Nandy… - US Patent …, 2019 - Google Patents
US10313796B2 - VAD detection microphone and method of operating the same - Google
Patents US10313796B2 - VAD detection microphone and method of operating the same …

Microphone and corresponding digital interface

W Dai, RA Popper - US Patent 10,020,008, 2018 - Google Patents
Analog signals are received from a sound transducer. The analog signals are converted into
digitized data. A determi nation is made as to whether voice activity exists within the digitized …

Decimation synchronization in a microphone

S Qutub, RA Popper, T Kassir, D Nandy - US Patent 9,711,166, 2017 - Google Patents
(57) An external clock signal having a first frequency is received. A division ratio is
automatically determined based at least in part upon a second frequency of an internal …

Microphone apparatus and method with catch-up buffer

D Nandy, Y Li, R Raghuvir, RA Popper… - US Patent …, 2016 - Google Patents
6,453,020 B1 9/2002 Hughes et al. ang et al. 6,564,330 B1 5/2003 SE et al. 2010, O290644
A1 11/2010 Wu et al. 6,591.234 B1 7/2003 Chandran et al. 2010, O292987 A1 11/2010 …

Low power voice trigger for acoustic apparatus and method

S Qutub, R Popper, O Khamharn - US Patent 9,830,080, 2017 - Google Patents
The analog signal is converted into digital data. A determi nation is made as to whether
acoustic activity exists within the digital data. The digital data is stored in a temporary …

VAD detection apparatus and method of operation the same

H Thomsen, D Nandy - US Patent 9,830,913, 2017 - Google Patents
A microphone assembly includes an acoustic sensor and a voice activity detector on an
integrated circuit coupled to an external-device interface. The acoustic sensor produces an …

End-to-end time-domain multitask learning for ML-based speech enhancement

R Pishehvar, A Jukic, M Souden, J Wung, F Li… - US Patent …, 2024 - Google Patents
Disclosed is a multi-task machine learning model such as a time-domain deep neural
network (DNN) that jointly generate an enhanced target speech signal and target audio …