公开(公告)号：US12015637B2

公开(公告)日：2024-06-18

申请号：US16841473

申请日：2020-04-06

Applicant: PINDROP SECURITY, INC.

Inventor： Khaled Lakhdhar ,  Parav Nagarsheth ,  Tianxiang Chen ,  Elie Khoury

IPC: H04L9/40 ,  G06F17/18 ,  G06N3/045 ,  G06N3/084 ,  G06N20/10 ,  G10L17/00 ,  G10L17/04 ,  G10L17/26 ,  G10L19/26 ,  H04L65/75

CPC classification number: H04L63/1466 ,  G06F17/18 ,  G06N3/045 ,  G06N3/084 ,  G06N20/10 ,  G10L17/00 ,  G10L17/04 ,  G10L17/26 ,  G10L19/26 ,  H04L65/75

Abstract: Embodiments described herein provide for automatically detecting whether an audio signal is a spoofed audio signal or a genuine audio signal. A spoof detection system can include an audio signal transforming front end and a classification back end. Both the front end and the back end can include neural networks that can be trained using the same set of labeled audio signals. The audio signal transforming front end can include a one or more neural networks for per-channel energy normalization transformation of the audio signal, and the back end can include a convolution neural network for classification into spoofed or genuine audio signal. In some embodiments, the transforming audio signal front end can include one or more neural networks for bandpass filtering of the audio signals, and the back end can include a residual neural network for audio signal classification into spoofed or genuine audio signal.

公开(公告)号：US11870932B2

公开(公告)日：2024-01-09

申请号：US17706398

申请日：2022-03-28

Applicant: Pindrop Security, Inc.

Inventor： Akanksha ,  Terry Nelms, II ,  Kailash Patil ,  Chirag Tailor ,  Khaled Lakhdhar

IPC: H04M3/42 ,  G06N20/00

CPC classification number: H04M3/42102 ,  G06N20/00 ,  H04M2203/556 ,  H04M2203/558

Abstract: Embodiments described herein provide for detecting whether an Automatic Number Identification (ANI) associated with an incoming call is a gateway, according to rules-based models and machine learning models generated by the computer using call data stored in one or more databases.

公开(公告)号：US11019201B2

公开(公告)日：2021-05-25

申请号：US16784071

申请日：2020-02-06

Applicant: PINDROP SECURITY, INC.

Inventor： Akanksha ,  Terry Nelms, II ,  Kailash Patil ,  Chirag Tailor ,  Khaled Lakhdhar

IPC: H04M3/42 ,  G06N20/00

Abstract: Embodiments described herein provide for detecting whether an Automatic Number Identification (ANI) associated with an incoming call is a gateway, according to rules-based models and machine learning models generated by the computer using call data stored in one or more databases.

公开(公告)号：US20220224793A1

公开(公告)日：2022-07-14

申请号：US17706398

申请日：2022-03-28

Applicant: Pindrop Security, Inc.

Inventor： Akanksha ,  Terry Nelms ,  Kailash Patil ,  Chirag Tailor ,  Khaled Lakhdhar

IPC: H04M3/42 ,  G06N20/00

Abstract: Embodiments described herein provide for detecting whether an Automatic Number Identification (ANI) associated with an incoming call is a gateway, according to rules-based models and machine learning models generated by the computer using call data stored in one or more databases.

公开(公告)号：US11290593B2

公开(公告)日：2022-03-29

申请号：US17317575

申请日：2021-05-11

Applicant: PINDROP SECURITY, INC.

Inventor： Akanksha ,  Terry Nelms, II ,  Kailash Patil ,  Chirag Tailor ,  Khaled Lakhdhar

IPC: H04M3/42 ,  G06N20/00

Abstract: Embodiments described herein provide for detecting whether an Automatic Number Identification (ANI) associated with an incoming call is a gateway, according to rules-based models and machine learning models generated by the computer using call data stored in one or more databases.