- Patent Title: Seamless listen-through based on audio zoom for a wearable device
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Application No.: US18063493Application Date: 2022-12-08
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Publication No.: US11743631B2Publication Date: 2023-08-29
- Inventor: Lae-Hoon Kim , Dongmei Wang , Fatemeh Saki , Taher Shahbazi Mirzahasanloo , Erik Visser , Rogerio Guedes Alves
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: Qualcomm Incorporation
- Current Assignee: Qualcomm Incorporation
- Current Assignee Address: US CA San Diego
- Agent Espartaco Diaz Hidaglo
- Main IPC: H03B29/00
- IPC: H03B29/00 ; A61F11/06 ; G10K11/16 ; H04R1/10

Abstract:
A wearable device may include a processor configured to perform active noise cancelation (ANC) applied to an input audio signal received by at least one microphone, and detect a self-voice signal, based on one or more transducers. The processor may also be configured to apply a first filter to an external audio signal, detected by at least one external microphone on the wearable device, during a listen through operation based on an activation of the audio zoom feature to generate a first listen-through signal that includes the external audio signal. The processor may also be configured to after the activation of the audio zoom feature terminate a second filter that provides low frequency compensation. The processor may be configured to produce an output audio signal that is based on at least the first listen-through signal that includes the external signal, and is based on the detected self-voice signal.
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