公开(公告)号：US11189273B2

公开(公告)日：2021-11-30

申请号：US15637658

申请日：2017-06-29

Applicant: Amazon Technologies, Inc.

Inventor： Marko Bundalo ,  Dibyendu Nandy ,  Bhupal Kanaiyalal Dharia

IPC: G10L21/00 ,  G10L25/00 ,  G10L15/22 ,  G10L15/28 ,  G06F1/3203 ,  G06F1/3287 ,  G10L15/26 ,  G10L25/78 ,  G10L15/08

Abstract: Apparatuses and systems for conserving power for a portable electronic device that monitors local audio for a wakeword are described herein. In a non-limiting embodiment, a portable electronic device may have two-phases. The first phase may be a first circuit that stores an audio input while determining whether human speech is present in the audio input. The second phase may be a second circuit that activates when the first circuit determines that human speech is present in the audio input. The second circuit may receive the audio input from the first circuit, store the audio input, and determine whether a wakeword is present within the audio input.

公开(公告)号：US10366699B1

公开(公告)日：2019-07-30

申请号：US15692241

申请日：2017-08-31

Applicant: Amazon Technologies, Inc.

Inventor： Bhupal Kanaiyalal Dharia ,  Dibyendu Nandy ,  Marko Bundalo ,  Hannan Ma

IPC: G06F15/00 ,  G10L21/02 ,  G10L21/0208 ,  G10L25/78 ,  G10L25/00 ,  G10L17/22

Abstract: This disclosure describes, in part, techniques for performing multi-path calculations for energy levels on an electronic device. For instance, the electronic device may include a first circuit and a second circuit, where the first circuit uses less power than the second circuit. As such, when operating in a standby mode, the electronic device may use the first circuit to calculate energy levels at the electronic device, such as speech-energy values and ambient-energy values. Additionally, while operating in an active mode, the electronic device may active the second circuit and then use the second circuit to calculate the energy levels at the electronic device. The first circuit and the second circuit can send/receive current energy levels between one another so that the electronic device can continually calculate the energy levels even when the electronic device switches between modes of operation.