公开(公告)号：US20250006211A1

公开(公告)日：2025-01-02

申请号：US18792768

申请日：2024-08-02

Applicant: ST R&DTech, LLC

Inventor： Steven Wayne Goldstein ,  John Patrick Keady

IPC: G10L21/00 ,  G06F3/16 ,  G06F16/60 ,  G10L13/00 ,  G10L15/26 ,  G10L21/06 ,  G10L25/48 ,  H04M1/05 ,  H04M1/247 ,  H04M1/60 ,  H04M1/72442 ,  H04R1/10 ,  H04R3/00 ,  H04W4/80

Abstract: A personal audio assistant that includes a speaker, microphone, memory, and a logic circuit that receives a request from a user for audio content, where the logic circuit retrieves a listening history envelope of the user, then retrieves a set of personalized playlist content from a remote server using the listening history envelop as a filter and sends a list of the set of personalized playlist content to the user.

公开(公告)号：US12236971B2

公开(公告)日：2025-02-25

申请号：US18096655

申请日：2023-01-13

Applicant: ST R&DTEch, LLC

Inventor： John Usher ,  Dan Ellis

IPC: G10L21/04 ,  G10L21/0388 ,  H04R3/00 ,  H04R1/02 ,  H04R1/10 ,  H04R5/033

Abstract: A method and device for automatically increasing the spectral bandwidth of an audio signal including generating a “mapping” (or “prediction”) matrix based on the analysis of a reference wideband signal and a reference narrowband signal, the mapping matrix being a transformation matrix to predict high frequency energy from a low frequency energy envelope, generating an energy envelope analysis of an input narrowband audio signal, generating a resynthesized noise signal by processing a random noise signal with the mapping matrix and the envelope analysis, high-pass filtering the resynthesized noise signal, and summing the high-pass filtered resynthesized noise signal with the input narrowband audio signal. Other embodiments are disclosed.