US 12,327,555 B2
Systems, methods, and devices for staged wakeup word detection
Ashutosh Pandey, Irvine, CA (US); Rodolfo Gondim Lossio, Taipei (TW); Victor Simileysky, San Jose, CA (US); and Robert Zopf, Rancho Santa Margarita, CA (US)
Assigned to Cypress Semiconductor Corporation, San Jose, CA (US)
Filed by Cypress Semiconductor Corporation, San Jose, CA (US)
Filed on Aug. 18, 2022, as Appl. No. 17/820,822.
Prior Publication US 2024/0062756 A1, Feb. 22, 2024
Int. Cl. G06F 40/30 (2020.01); G06F 1/3206 (2019.01); G10L 15/22 (2006.01); G10L 15/08 (2006.01)
CPC G10L 15/22 (2013.01) [G06F 1/3206 (2013.01); G10L 2015/088 (2013.01); G10L 2015/223 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
receiving an audio input at an audio front end circuit;
starting, using a low power circuit, one or more buffers in response to receiving the audio input, the one or more buffers comprising at least a time domain buffer and a frequency domain buffer;
identifying, using the low power circuit, speech included in the audio input; and
identifying, using the low power circuit and a high performance circuit, a wake word based, at least in part, on the identified speech, the high performance circuit being configured to verify the wake word identified by the low power circuit.