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:
Jul. 08, 2025
Filed:
Jun. 30, 2022
Amazon Technologies, Inc., Seattle, WA (US);
Guillermo Daniel Garcia, Berkeley, CA (US);
Shobha Devi Kuruba Buchannagari, Fremont, CA (US);
Carlo Murgia, Santa Clara, CA (US);
Mazher Ali Khan, San Jose, CA (US);
Berkant Tacer, Bellevue, WA (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
A system configured to perform noise dependent volume control in order to increase a volume level of the playback audio in a noisy environment. For example, a device may adaptively increase gain based on an amount of ambient noise present in the environment. The device may determine a gain value based on a noise reference value and an estimated noise floor. The device may determine the estimated noise floor based on continuous noises, ignoring transient sounds and user speech. In addition, the device may include volume control logic to ensure that the volume level only increases when necessary and/or to control a rate at which the volume level increases. As part of selecting the volume level with which to generate the playback audio, the device may use a lookup table to convert between a device volume and a quantized volume used to perform noise dependent volume control.