阅读说明：本技术 用于降低无线传感器设备的功率消耗的系统和方法 (System and method for reducing power consumption of wireless sensor devices ) 是由 卡迈什·梅达帕尔利 布莱恩·贝德罗西安 于 2019-02-13 设计创作，主要内容包括：示例系统和方法在操作无线设备的通信资源的电源被关断的第一模式中操作无线设备。当在第一模式中操作无线设备时,该系统和方法检测在音频数据的第一部分中的语音属性,该音频数据基于麦克风输入。响应于对语音属性的检测,该系统和方法使无线设备转换到在操作通信资源的电源被接通的第二模式中操作。该系统和方法使用通信资源来建立蓝牙(BT)连接并经由BT连接来传递数据包,对数据包的传递基于音频数据。(Example systems and methods operate a wireless device in a first mode in which power to operate communication resources of the wireless device is turned off. The system and method detect a voice attribute in a first portion of audio data that is based on a microphone input while operating the wireless device in a first mode. In response to detecting the voice attribute, the systems and methods transition the wireless device to operate in a second mode in which power to operate the communication resource is turned on. The system and method establish a Bluetooth (BT) connection using communication resources and communicate data packets via the BT connection, the communication of the data packets being based on audio data.)

1. A method, comprising:

operating a wireless device in a first mode in which power to communication resources operating the wireless device is turned off;

while operating the wireless device in the first mode, detecting a voice attribute in a first portion of audio data, wherein the audio data is based on a microphone input;

in response to the detection of the voice attribute, transitioning to operating the wireless device in a second mode;

operating the wireless device in the second mode in which power to operate the communication resources is turned on; and

establishing a Bluetooth (BT) connection and communicating a data packet via the BT connection using the communication resource, the communicating of the data packet based on the audio data.

2. The method of claim 1, wherein the detection of the speech attribute comprises detecting a beginning of speech in the first portion of the audio data.

3. The method of claim 1, wherein the detection of the voice attribute comprises detecting a phrase in the first portion of the audio data.

4. The method of claim 1, wherein transitioning to operating the wireless device in the second mode comprises powering up circuitry configured to operate the communication resource, wherein operating the wireless device in the first mode in which the power supply is turned off consumes less power than operating the wireless device in the second mode in which the power supply is turned on.

5. The method of claim 4, wherein the communication resource comprises a transceiver.

6. The method of claim 4, wherein the communication resources comprise code configured to implement a portion of at least one of a controller and a host of a BT architecture, wherein transitioning to operate the wireless device in the second mode comprises commencing processing of the code.

7. The method of claim 1, wherein the passing of the packet via the BT connection comprises passing the packet as a generic attribute profile (GATT) server.

8. The method of claim 1, wherein the communicating of the data packet comprises communicating a second portion of the audio data, wherein the second portion of the audio data comprises at least one of a command and a query.

9. The method according to claim 8, wherein the establishing of the BT connection comprises establishing a BT Low Energy (BLE) connection, and the communicating of the data packets comprises transmitting first data packets comprising the second portion of the audio data via the BLE connection for pattern recognition processing of the second portion of the audio data.

10. The method according to claim 9, wherein the establishing of the BLE connection comprises establishing a BLE connection with another wireless device while the wireless device maintains a classic BT connection with the other wireless device.

11. The method according to claim 9, wherein the passing of the data packet includes receiving a second data packet via the BLE connection, the second data packet including a response to at least one of the command and the inquiry.

12. The method of claim 8, wherein the second portion of the audio data comprises a connect call command.

13. The method of claim 12, wherein the establishing of the BT connection comprises establishing a classic BT connection and the communicating of the data packet comprises communicating voice call data via the classic BT connection in response to the connect call command, wherein the voice call data does not include the audio data.

14. An Integrated Circuit (IC), comprising:

a signal processing circuit configured to provide audio data, wherein the audio data is based on a signal from a microphone;

a processor configured to operate a voice detector coupled to the signal processing circuit;

a power manager coupled to the voice detector; and

a Bluetooth (BT) communication circuit coupled to the power manager, wherein, in response to detection of speech in the first portion of the audio data by the speech detector, the power manager is configured to transition the IC from operating in a first mode in which power to operate the BT communication circuit is turned off to operating in a second mode in which power to operate the BT communication circuit is turned on, wherein operating in the second mode comprises establishing a BT connection using the BT communication circuit and communicating a data packet via the BT connection, wherein the communicating of the data packet is responsive to the speech.

15. The IC of claim 14, wherein the voice detector comprises at least one of: a voice onset detector (SOD) to detect voice onset, and a phrase detector to detect one or more predetermined phrases.

16. The IC of claim 14, wherein the BT communication circuitry comprises at least one of a transceiver and link layer circuitry, wherein operation of the IC in the first mode in which the power supply is turned off consumes less power than operation of the IC in the second mode in which the power supply is turned on.

17. The IC of claim 14, wherein operation in the second mode comprises processing, using the BT communication circuitry, code configured to implement a portion of at least one of a controller and a host of a BT architecture.

18. The IC of claim 14, wherein communicating the packet via the BT connection comprises communicating the packet as a generic attribute profile (GATT) server.

19. The IC of claim 14, wherein the communication of the data packet comprises communication of a second portion of the audio data, wherein the second portion of the audio data comprises at least one of a voice command and a query.

20. The IC of claim 19, wherein the BT communication circuit is to establish a BT Low Energy (BLE) connection and communicate the second portion of the audio data via the BLE connection for pattern recognition processing of the second portion of the audio data.

21. A wireless headset, comprising:

a microphone providing an audio signal;

a power interface configured to couple with a battery; and

an integrated circuit, the integrated circuit comprising:

a signal processing circuit that generates audio data based on the audio signal;

a processor configured to operate a phrase detector;

a power manager coupled to the phrase detector; and

a Bluetooth (BT) circuit coupled to the power manager, wherein, in response to a phrase in the first portion of audio data being detected by the phrase detector, the power manager is configured to transition the wireless headset from operating in a first mode in which power to operate the BT circuit is turned off to operating in a second mode in which power to operate the BT circuit is turned on, wherein operating in the second mode comprises establishing a BT Low Energy (BLE) connection using the BT circuit and transmitting data packets including a second portion of the audio data for voice recognition via the BLE connection as a generic Attribute Profile (GATT) server.

22. The wireless headset device of claim 21, wherein operation in the second mode comprises processing code using the BT circuitry to implement a portion of at least one of a controller and a host of a BT architecture.

Technical Field

The present subject matter relates to the field of device connectivity. More specifically, but not by way of limitation, the present subject matter discloses techniques for reducing power consumption of wireless sensor devices.

Background

Wireless sensor devices, such as wireless headsets, health monitors, smart speakers, hands-free interfaces, and other wireless sensors, considered to have "always-on" or "always listening" interface capability, may remain in a powered state to collect sensor data and wirelessly transmit the collected sensor data to another device. Remaining in the powered state for long periods of time may unnecessarily drain battery power or require an electrical outlet.