公开(公告)号：US10262672B2

公开(公告)日：2019-04-16

申请号：US15658842

申请日：2017-07-25

Applicant: Verizon Patent and Licensing Inc.

Inventor： Youhong Lu ,  Ravi Kalluri ,  Andrew Walters ,  Luigi Bojan

IPC: G10L21/02 ,  G10L25/21 ,  G10L21/0232 ,  G10L21/0224 ,  G10L21/0208

Abstract: A method, a device, and a non-transitory storage medium are described in which a power of late reverberation of a speech signal is estimated based on early samples of the speech signal. The power of the late reverberation may be subtracted linearly or non-linearly from the speech signal.

公开(公告)号：US20180176679A1

公开(公告)日：2018-06-21

申请号：US15384598

申请日：2016-12-20

Applicant: Verizon Patent and Licensing Inc.

Inventor： Youhong Lu ,  Ravi Kalluri ,  Andrew Walters ,  Luigi Bojan ,  Yadong Wang ,  Vasanthi Vuppuluri

IPC: H04R1/40 ,  G10L15/22 ,  H04R3/04 ,  H04R3/00

CPC classification number: H04R1/406 ,  G10L15/22 ,  G10L2015/223 ,  H04R3/005 ,  H04R3/04 ,  H04R2201/403

Abstract: Techniques, described herein, may enable a computing device (e.g., a set-top-box, a user equipment (UE), etc.) with an array of sensors (e.g., microphones, antennas, etc.) to engage in beamforming in a manner that optimizes the signal strength of the target signal. For example, the computing device may create an optimized beam pattern by applying a pre-selected band width to a steering direction of the target signal. The beam width may include steering vectors at equal, angular distances from the steering direction, enabling steep transition slopes to be applied to the optimized beam pattern. In some implementations, the beam width and transition slopes may be standardized, such that the optimized beam pattern for any signal may be uniform, regardless of variables such as frequency and time.

公开(公告)号：US20190035415A1

公开(公告)日：2019-01-31

申请号：US15658842

申请日：2017-07-25

Applicant: Verizon Patent and Licensing Inc.

Inventor： Youhong Lu ,  Ravi Kalluri ,  Andrew Walters ,  Luigi Bojan

IPC: G10L21/02 ,  G10L25/21 ,  G10L21/0232 ,  G10L21/0224

Abstract: A method, a device, and a non-transitory storage medium are described in which a power of late reverberation of a speech signal is estimated based on early samples of the speech signal. The power of the late reverberation may be subtracted linearly or non-linearly from the speech signal.

公开(公告)号：US10015588B1

公开(公告)日：2018-07-03

申请号：US15384598

申请日：2016-12-20

Applicant: Verizon Patent and Licensing Inc.

Inventor： Youhong Lu ,  Ravi Kalluri ,  Andrew Walters ,  Luigi Bojan ,  Yadong Wang ,  Vasanthi Vuppuluri

IPC: H04R3/00 ,  H04R1/40 ,  G10L15/22 ,  H04R3/04

Abstract: Techniques, described herein, may enable a computing device (e.g., a set-top-box, a user equipment (UE), etc.) with an array of sensors (e.g., microphones, antennas, etc.) to engage in beamforming in a manner that optimizes the signal strength of the target signal. For example, the computing device may create an optimized beam pattern by applying a pre-selected band width to a steering direction of the target signal. The beam width may include steering vectors at equal, angular distances from the steering direction, enabling steep transition slopes to be applied to the optimized beam pattern. In some implementations, the beam width and transition slopes may be standardized, such that the optimized beam pattern for any signal may be uniform, regardless of variables such as frequency and time.