The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 23, 2025
Filed:
Jun. 20, 2023
Himax Technologies Limited, Tainan, TW;
Ti-Wen Tang, Tainan, TW;
Chin-Kuei Hsu, Tainan, TW;
Ching-Han Chou, Tainan, TW;
Bo-Ying Huang, Tainan, TW;
Tzu-Hsu Chen, Tainan, TW;
Himax Technologies Limited, Tainan, TW;
Abstract
An anti-spoofing authentication system includes an image capture device that converts received light into an image signal representing a captured image; a microphone that converts sound wave into a voice signal; a face detection device that detects a human face on the captured image, the face detection device including a lip detection device that detects lip features associated with the detected human face; a voice activity detection (VAD) device that detects presence of human voice in the voice signal; and an anti-spoofing device that detects a spoofing attack according to the detected lip features and the detected human voice.