Inventor
Matsoukas Spyridon
US38 patents
Patents
38 patentsUS9697828B1Jul 4, 2017
Keyword detection modeling using contextual and environmental information
AMAZON TECH INC362 citations99
US10490195B1Nov 26, 2019
Using system command utterances to generate a speaker profile
AMAZON TECH INC112 citations97
US10304440B1May 28, 2019
Keyword spotting using multi-task configuration
AMAZON TECH INC103 citations97
US10032463B1Jul 24, 2018
Speech processing with learned representation of user interaction history
AMAZON TECH INC62 citations97
US10600406B1Mar 24, 2020
Intent re-ranker
AMAZON TECH INC186 citations96
US11361763B1Jun 14, 2022
Detecting system-directed speech
AMAZON TECH INC84 citations95
US10121494B1Nov 6, 2018
User presence detection
AMAZON TECH INC36 citations94
US10679621B1Jun 9, 2020
Speech processing optimizations based on microphone array
AMAZON TECH INC20 citations93
US10522134B1Dec 31, 2019
Speech based user recognition
AMAZON TECH INC33 citations93
US9653093B1May 16, 2017
Generative modeling of speech using neural networks
AMAZON TECH INC33 citations93
US11043205B1Jun 22, 2021
Scoring of natural language processing hypotheses
AMAZON TECH INC32 citations92
US9560441B1Jan 31, 2017
Determining speaker direction using a spherical microphone array
AMAZON TECH INC206 citations92
US11410646B1Aug 9, 2022
Processing complex utterances for natural language understanding
AMAZON TECH INC17 citations91
US11081104B1Aug 3, 2021
Contextual natural language processing
AMAZON TECH INC32 citations90
US11200884B1Dec 14, 2021
Voice profile updating
AMAZON TECH INC13 citations85
US11132990B1Sep 28, 2021
Wakeword and acoustic event detection
AMAZON TECH INC13 citations85
US11043218B1Jun 22, 2021
Wakeword and acoustic event detection
AMAZON TECH INC11 citations85
US11004454B1May 11, 2021
Voice profile updating
AMAZON TECH INC14 citations85
US11302329B1Apr 12, 2022
Acoustic event detection
AMAZON TECH INC16 citations83
US10504512B1Dec 10, 2019
Natural language speech processing application selection
AMAZON TECH INC10 citations83
US11335346B1May 17, 2022
Natural language understanding processing
AMAZON TECH INC7 citations80
US12112752B1Oct 8, 2024
Cohort determination in natural language processing
AMAZON TECH INC13 citations77
US12039998B1Jul 16, 2024
Self-supervised federated learning
AMAZON TECH INC5 citations74
US11893999B1Feb 6, 2024
Speech based user recognition
AMAZON TECH INC4 citations74
US12387727B1Aug 12, 2025
Speech processing optimizations based on microphone array
AMAZON TECH INC1 citations73
US11657832B2May 23, 2023
User presence detection
AMAZON TECH INC2 citations73
US11657804B2May 23, 2023
Wake word detection modeling
AMAZON TECH INC1 citations73
US10832662B2Nov 10, 2020
Keyword detection modeling using contextual information
AMAZON TECH INC3 citations73
US9892726B1Feb 13, 2018
Class-based discriminative training of speech models
AMAZON TECH INC5 citations73
US11270685B2Mar 8, 2022
Speech based user recognition
AMAZON TECH INC2 citations72
US10600419B1Mar 24, 2020
System command processing
AMAZON TECH INC5 citations72
US12443633B1Oct 14, 2025
Determining device context
AMAZON TECH INC2 citations69
US11276403B2Mar 15, 2022
Natural language speech processing application selection
AMAZON TECH INC0 citations62
US11935525B1Mar 19, 2024
Speech processing optimizations based on microphone array
AMAZON TECH INC0 citations61
US12462801B2Nov 4, 2025
Processing complex utterances for natural language understanding
AMAZON TECH INC0 citations60
US11670299B2Jun 6, 2023
Wakeword and acoustic event detection
AMAZON TECH INC0 citations59
US11227585B2Jan 18, 2022
Intent re-ranker
AMAZON TECH INC1 citations59
US10796716B1Oct 6, 2020
User presence detection
AMAZON TECH INC0 citations52