# Spyridon Matsoukas — Patents explained on PatentBrief

Spyridon Matsoukas has 2 landmark patents explained in plain English on PatentBrief.

- [How Wearable Devices Use Location and Biometrics to Know Who You Are](https://patentbrief.org/patent/us/20220189458/speech-based-user-recognition)
  This patent describes how a computer system can figure out who is using a wearable device by combining its location data with biometric information like a face scan or voice recording.
- [How Smart Speakers Know You're Talking to Them After a Command](https://patentbrief.org/patent/us/11361763/detecting-system-directed-speech) — granted 2022
  This patent describes how a smart speaker system can tell if follow-up speech is meant for it, even without a "wake word," by analyzing voice activity and partial speech recognition results using an AI model.

**Full profile:** https://patentbrief.org/inventor/spyridon-matsoukas

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_Source: PatentBrief — https://patentbrief.org. Plain-English explanations of US patents._