Dilated convolutions and gating for efficient keyword spotting
US12159626B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2023 |
| Grant date | Dec 3, 2024 |
| Priority date | — |
| Expiry date | Aug 28, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2015/088
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for detection of a keyword in a continuous stream of audio signal, by using a dilated convolutional neural network, implemented by one or more computers embedded on a device, the dilated convolutional network comprising a plurality of dilation layers, including an input layer and an output layer, each layer of the plurality of dilation layers comprising gated activation units, and skip-connections to the output layer, the dilated convolutional network being configured to generate an output detection signal when a predetermined keyword is present in the continuous stream of audio signal, the generation of the output detection signal being based on a sequence of successive measurements provided to the input layer, each successive measurement of the sequence being measured on a corresponding frame from a sequence of successive frames extracted from the continuous stream of audio signal, at a plurality of successive time steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.