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A method for waking up a terminal, a dsp chip and a terminal

A technology for waking up terminals and chips, applied in the field of methods, DSP chips and terminals, and waking up terminals, can solve the problems of low practicability and large power consumption.

Active Publication Date: 2016-01-20
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, using the above method of waking up the terminal by sound, since the DSP and AP are in a false sleep state, the PMU needs to provide a normal working current for the DSP and AP, so the power consumption is large and the practicability is low

Method used

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  • A method for waking up a terminal, a dsp chip and a terminal
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  • A method for waking up a terminal, a dsp chip and a terminal

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Embodiment Construction

[0051] The basic idea of ​​the present invention is: in the dormant state of the terminal, only power is supplied to the DSP chip, and the DSP chip obtains the sound data of the sound to be judged; the DSP chip performs feature extraction on the sound data of the sound to be judged, and obtains the A characteristic sequence: the DSP chip matches the characteristic sequence of the sound to be determined with the preset characteristic sequence of the target sound, and if the matching is successful, activates the AP of the terminal.

[0052] The comparison between the power consumption of the DSP and the power consumption of the AP is shown in Table 1:

[0053] Types of

AP (Context-A9)

Dsp (ForteMedia)

power consumption

0.25w

0.0035w

[0054] Table 1

[0055] It can be seen from the above table that even if the DSP is always in the power supply state, it can save power consumption compared with the existing solution. Therefore, in order to w...

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Abstract

The invention discloses a terminal awakening method. The method comprises the following steps: in the terminal sleep state, power is only supplied to the DSP chip, and sound data of a sound to be judged is acquired by the DSP chip; feature extraction is performed on the sound data of the sound to be judged by the DSP chip to acquire a feature sequence of the sound to be judged; and the DSP chip is used to perform matching between the feature sequence of the sound to be judged and the feature sequence of a default target sound, and if the matching process is successful, then the AP of the terminal is activated. The invention further correspondingly discloses a DSP chip and a terminal. Through the terminal awakening method, the DSP chip and the terminal of the invention, the terminal can be awakened through a sound, and power is only supplied to the DSP in the terminal sleep state state, so advantages of less power consumption and high practicability can be realized.

Description

technical field [0001] The invention relates to the field of data services, in particular to a method for waking up a terminal, a DSP chip and a terminal. Background technique [0002] In the existing mobile phone architecture, the architecture of the sound input system is as follows figure 1 As shown, among them, Mic is a microphone, responsible for external recording; DSP is a sound processing chip, responsible for noise reduction and encoding; PMU is a power management module, responsible for managing the power supply and shutdown of DSP and application processor; application processor (AP) is responsible for Operational processing of the terminal software system. [0003] based on figure 1 In the architecture shown, when the terminal is in a sleep state, the PMU will only provide a very small standby current for the DSP and the AP. At this time, the DSP and the AP are in a non-working state. When we speak, the MIC cannot process it even if it can receive the sound. Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M1/725H04M1/73G10L15/26
CPCY02D30/70
Inventor 刘琨焦伟黄晓庆
Owner CHINA MOBILE COMM GRP CO LTD