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WO2017181386A1 - 一种基于移动终端的助听装置 - Google Patents

一种基于移动终端的助听装置 Download PDF

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Publication number
WO2017181386A1
WO2017181386A1 PCT/CN2016/079886 CN2016079886W WO2017181386A1 WO 2017181386 A1 WO2017181386 A1 WO 2017181386A1 CN 2016079886 W CN2016079886 W CN 2016079886W WO 2017181386 A1 WO2017181386 A1 WO 2017181386A1
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WO
WIPO (PCT)
Prior art keywords
dsp
audio signal
mobile terminal
switch
digital
Prior art date
Application number
PCT/CN2016/079886
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English (en)
French (fr)
Inventor
杨枭
李芳庆
任艳辉
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2016/079886 priority Critical patent/WO2017181386A1/zh
Priority to CN201680009584.6A priority patent/CN107529353B/zh
Publication of WO2017181386A1 publication Critical patent/WO2017181386A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
    • H04M1/6041—Portable telephones adapted for handsfree use
    • H04M1/6058—Portable telephones adapted for handsfree use involving the use of a headset accessory device connected to the portable telephone
    • H04M1/6066—Portable telephones adapted for handsfree use involving the use of a headset accessory device connected to the portable telephone including a wireless connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/02—Details of telephonic subscriber devices including a Bluetooth interface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of mobile terminal technologies, and in particular, to a hearing aid device based on a mobile terminal.
  • the hearing aid of the existing mobile phone works on the principle that the sound around the user enters the codec through the microphone of the mobile phone, and then reaches the earphone amplifier through the analog loop or the digital loop in the codec to promote the sound of the earphone speaker.
  • the hearing aid needs to be opened for a long time, and the codec in the mobile phone also needs to run for a long time, which causes the power consumption of the mobile phone to rise sharply and shorten the standby time of the mobile phone.
  • the embodiments of the present invention provide a hearing aid device based on a mobile terminal.
  • the hearing aid function is implemented on the mobile terminal, the power consumption of the mobile terminal can be reduced, and the standby time of the mobile terminal can be prolonged.
  • an embodiment of the present invention provides a hearing aid device based on a mobile terminal, where the device includes: an application processor AP, a digital signal processing integrated circuit DSP IC, a microphone MIC, a switch, a codec Codec, and a headphone power amplifier.
  • the switch is used to switch between the first channel and the second channel;
  • the first channel includes the AP, the DSP IC, the switch, and the HP PA connected in sequence, wherein an input end of the DSP IC is connected to the MIC;
  • the second channel includes the AP, the Codec, the switch, and the HP PA connected in sequence;
  • the AP is configured to control, by the DSP IC, the switch to communicate with the DSP IC when the hearing aid function is turned on, and control the AP and the Codec to enter a power saving mode;
  • the DSP IC is configured to receive an audio signal to be processed input through the MIC, process the audio signal to be processed, and send the processed audio signal to the HP PA via the DPDT analog switch;
  • the HP PA is used to amplify the received audio signal.
  • the mobile terminal-based hearing aid device implements the hearing aid function by using Codec in the mobile terminal in the prior art, and the long-term operation of the Codec causes the power consumption of the mobile terminal to rise sharply, thereby reducing the standby time of the mobile terminal.
  • the embodiment of the present invention by setting the DSP IC and the switch in the mobile terminal, when the hearing aid function is enabled, the first channel is opened, and the AP and the Codec are set to the energy-saving mode, and the DSP IC dedicated to implementing the hearing aid function is treated.
  • the processed audio signal is processed. Since the power consumption of the audio signal processed by the DSP IC is much lower than the power consumption of the Codec runtime, the power consumption of the mobile terminal can be reduced, and the standby time of the mobile terminal can be prolonged.
  • the MIC is a digital MIC
  • the DSP IC includes a digital signal processor DSP, a digital-to-analog converter DAC, and a left channel interface and a right channel interface.
  • the left channel interface and the right channel interface are connected to the switch;
  • the DSP is configured to receive a digital audio signal sent by the digital MIC, process the digital audio signal, and send the processed digital audio signal to the DAC;
  • the DAC is configured to receive the processed digital audio signal sent by the DSP, convert the processed digital audio signal into an analog digital signal, and pass the analog digital signal through the left channel interface and the The right channel interface is sent to the HP PA via the switch.
  • the MIC is an analog MIC
  • the DSP IC includes an analog-to-digital converter ADC, a digital signal processor DSP, a digital-to-analog converter DAC, and a left channel interface and a right channel interface.
  • the DSP IC is connected to the switch through the left channel interface and the right channel interface;
  • the ADC is configured to receive an analog audio signal of the analog MIC input, convert the analog audio signal into a digital audio signal, and send the digital audio signal to the DSP;
  • the DSP configured to receive the digital audio signal sent by the ADC, for the digital The audio signal is processed, and the processed digital audio signal is sent to the DAC;
  • the DAC is configured to receive the processed digital audio signal sent by the DSP, convert the processed digital audio signal into an analog digital signal, and pass the analog digital signal through the left channel interface and the The right channel interface is sent to the HP PA via the switch.
  • the switch is a double-pole double-throw DPDT analog switch, and the AP and the DSP IC are connected through a two-wire serial bus I2C interface, and the DSP IC further includes a control pin;
  • the I2C interface is configured to transmit a control instruction sent by the AP to the DSP IC, and transmit a control result that is sent back by the DSP IC to the AP;
  • the control pin is connected to the DPDT analog switch, and is configured to control a connection state of the DPDT analog switch according to a control instruction sent by the AP to the DSP IC, when a control function of the mobile terminal is enabled.
  • the DSP IC sets a level of the control pin to a first level according to a control instruction sent by the AP, and the DPDT analog switch is in communication with the left channel interface and the right channel interface;
  • the DSP IC sets the level of the control pin to a second level according to a control instruction sent by the AP, and the DPDT analog switch is in communication with the Codec.
  • the DSP IC and the switch implement the hearing aid function on the mobile terminal. Since the DSP IC is based on the low power DSP design, the DSP IC is used in the low power consumption DSP. The power consumption during normal operation is extremely low, so even if the hearing aid function of the mobile terminal is turned on for a long time, the influence on the standby time length of the mobile terminal is relatively small, so that the power consumption of the mobile terminal is reduced compared with the prior art, and the power consumption is extended. Standby time of the mobile terminal.
  • the DSP IC and the AP and the Codec are connected through a low-power inter-chip serial media bus SlimBus interface or an integrated circuit built-in audio I2S interface;
  • the SlimBus interface or the I2S interface is configured to transmit audio data between the DSP IC and the AP, and transmit audio data between the DSP IC and the Codec.
  • the DSP IC and the AP and the Codec have an interface for transmitting audio data, the DSP IC can still use the MIC when turning off the hearing aid function of the mobile terminal.
  • the input signal is transmitted to the AP and Codec, which ensures that the mobile terminal can be used both as a hearing aid and a normal voice call function.
  • the DSP IC further includes an interrupt output port
  • the DSP IC is configured to send an interrupt message to the AP by using the interrupt output port, where the interrupt message is used to request communication to the AP.
  • the DSP IC is further configured to provide a clock of the digital MIC to the digital MIC.
  • the output end of the HP PA is connected to the earphone interface, and the HP PA amplifies the received audio signal, and then transmits the earphone interface to the earphone connected to the earphone interface; or,
  • the HP PA amplifies the received audio signal and transmits it to an audio playback device that is wirelessly connected to the mobile terminal.
  • the mobile terminal-based hearing aid device integrates the function of the hearing aid into the mobile terminal, and the user can use the function of the hearing aid only when wearing the mobile terminal, so that the user can carry the mobile terminal and the hearing aid at the same time.
  • Both devices without the need to carry a charger for both devices, provide convenience for hearing aid users.
  • an embodiment of the present invention provides a mobile terminal, including: a mobile terminal-based hearing aid device as described in the first aspect.
  • the mobile terminal provided by the embodiment of the present invention implements the hearing aid function by using the Codec in the mobile terminal in the prior art, and the long-term operation of the Codec causes the power consumption of the mobile terminal to rise sharply, and the standby time of the mobile terminal is reduced, and the implementation of the present invention is compared.
  • the DSP IC and the switch in the mobile terminal when the hearing aid function is turned on, the first channel is turned on, and the AP and Codec are set to the energy-saving mode, and the audio signal to be processed by the DSP IC dedicated to implementing the hearing aid function is performed. Processing, because the power consumption of the DSP IC processing audio signal is much lower than the power consumption of the Codec runtime, the power consumption of the mobile terminal can be reduced, and the standby time of the mobile terminal can be prolonged.
  • FIG. 1 is a schematic diagram of a logical structure of a hearing aid device based on a mobile terminal according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a logical structure of another hearing aid device based on a mobile terminal according to an embodiment of the present invention.
  • the embodiment of the present invention provides a hearing aid device based on the mobile terminal.
  • the device includes: an Application Processor , application processor) 11, DSP IC (Digital Signal Processing Integrated Circuit) 12, MIC (microphone) 13, switch 14, Codec (codec) 15 and HP PA (Headphone Power Amplifier, Headphone power amplifier) 16;
  • the switch 1 is used to switch between the first channel and the second channel.
  • the first channel includes an AP11, a DSP IC 12, a switch 14 and an HP PA 16 connected in sequence, wherein an input of the DSP IC 12 is connected to the MIC 13, and the first channel is used to implement a hearing aid function in the mobile terminal.
  • the second channel includes AP11, Codec15, switch 14, and HP PA16 connected in sequence, and the second channel is used to implement common audio transmission functions of the mobile terminal, such as playing music, voice calls, and the like.
  • Codec15 is also connected to RCV (Receiver, receiver), Codec15 can also output audio signals through RCV.
  • RCV Receiveiver, receiver
  • AP11 used to control switch 14 and DSP through DSP IC12 when hearing aid function is enabled IC12 is connected and controls AP11 and Codec15 to enter energy-saving mode.
  • the energy-saving mode is different from the working mode.
  • the working mode all functions in the AP11 and Codec15 are turned on, and the unused functions also generate power consumption, which causes the standby time of the mobile terminal to be shortened.
  • the power-saving mode means that the functions of the AP11 and Codec15 that are not in use are temporarily turned off, and the clock frequency is greatly reduced, thereby achieving the purpose of power saving.
  • the switch 14 is connected to the DSP IC 12, that is, the mobile phone realizes the hearing aid function in the mobile terminal through the second channel. At this time, the utilization rate of the AP11 and the Codec 15 is low, so the energy saving mode can be entered. Reduce the power consumption of mobile terminals.
  • the DSP IC 12 is configured to receive the to-be-processed audio signal input through the MIC 13, process the processed audio signal, and send the processed audio signal to the HP PA 16 via the switch 14.
  • the DSP IC 12 After receiving the audio signal to be processed, the DSP IC 12 needs to run a signal processing algorithm for the hearing aid to complete the processing of the signal to be processed.
  • the MIC 13 can be the MIC of the mobile terminal.
  • the mobile terminal can be connected to the earphone, and the output signal of the HP PA16 is transmitted to the earphone to implement the hearing aid function.
  • the MIC of the mobile terminal can still input an audio signal.
  • the HP PA16 is used to amplify the received audio signal.
  • an output end of the HP PA is connected to the earphone interface, and after the HP PA16 amplifies the received audio signal, the amplified audio signal is transmitted to the earphone interface through the earphone interface. Headphones for hearing aid function.
  • the HP PA 16 amplifies the received audio signal and transmits the amplified audio signal to an audio playback device that is wirelessly connected to the mobile terminal, such as a Bluetooth headset.
  • the mobile terminal-based hearing aid device implements the hearing aid function by using Codec in the mobile terminal in the prior art, and the long-term operation of the Codec causes the power consumption of the mobile terminal to rise sharply, thereby reducing the standby time of the mobile terminal.
  • the embodiment of the present invention by setting the DSP IC and the switch in the mobile terminal, when the hearing aid function is enabled, the first channel is opened, and the AP and the Codec are set to the energy-saving mode, and the DSP IC dedicated to implementing the hearing aid function is treated.
  • the processed audio signal is processed. Since the power consumption of the audio signal processed by the DSP IC is much lower than the power consumption of the Codec runtime, the power consumption of the mobile terminal can be reduced, and the mobile terminal can be extended. Machine time.
  • the following describes the communication process between the first channel and the second channel of the mobile terminal.
  • the first channel When the AP11 turns on the hearing aid function, the AP11 controls the switch 14 to communicate with the DSP IC12 through the DSP IC12, and the first channel is turned on.
  • the MIC 13 collects sound, generates an audio signal to be processed, inputs the audio signal to be processed to the DSP IC12, and the DSP IC12 processes the audio signal to be processed, and sends the processed audio signal to the HP PA16 via the switch 14, which is received by the HP PA16.
  • the audio signal is amplified and output.
  • the hearing aid function of the mobile terminal is in the on state
  • the AP 11 detects that the mobile terminal performs a voice call
  • the hearing aid function is turned off, and the second channel is switched, and when the voice call is determined to be completed, the hearing aid is automatically turned on. Function, switch to the first channel.
  • the second channel When the AP11 detects that the mobile terminal makes a voice call, the hearing aid function is turned off, and the AP11 controls the switch 14 to communicate with the Codec 15 through the DSP IC 12, and the second channel is turned on.
  • the AP11 controls the DSP IC12 to enable the pass-through mode. That is, the DSP IC12 does not perform any processing after receiving the to-be-processed audio signal input by the MIC13, and directly sends the to-be-processed audio signal to the AP11 and Codec15, and the normal call function is completed by the AP11 and the Codec15.
  • the audio signal of the opposite end of the call is sent by Codec 15 to HP PA16 via switch 14, and then output by HP PA16.
  • the DSP IC12 when the hearing aid function is off, the DSP IC12 will be in the sleep mode when no voice input is required. When the voice input is required, the DSP IC12 switches to the through mode, and the signal received from the MIC is directly sent to the AP11. And / or Codec15.
  • MIC13 is digital MIC131 or analog MIC132
  • DSP IC12 includes analog-to-digital converter ADC121, digital signal processor DSP122, digital-to-analog converter DAC123 and left channel interface (Hearing Aid-L) The right channel interface (Hearing Aid-R), wherein the DSP IC 12 is connected to the switch 14 through the left channel interface and the right channel interface.
  • the MIC 13 is an audio receiving device of the mobile terminal, and may be a digital MIC 131 or an analog MIC 132.
  • Figure 2 shows both the digital MIC 131 and the analog MIC 132, in fact the MIC 13 in the mobile terminal is the digital MIC 131 and the analog MIC 132 In the middle, there is no digital MIC131 and analog MIC132 working at the same time, so when the MIC13 is the digital MIC131, the DSP 122 directly receives the digital audio signal sent by the digital MIC131, and when the MIC13 is the analog MIC131, the DSP 122 receives the digital audio signal sent by the ADC 121.
  • the ADC 121 may not be disposed in the DSP IC 12.
  • the clock of the digital MIC131 is provided by the DSP IC12, and is specifically provided by the DSP 122 in the DSP IC12.
  • the DSP 122 is configured to receive the digital audio signal sent by the digital MIC 131, process the digital audio signal, and send the processed digital audio signal to the DAC 123.
  • the DSP 122 is a low-power DSP core in the DSP IC12, and can execute a signal processing algorithm for implementing a hearing aid function.
  • DSP IC12 is based on the low-power DSP122 design, which consumes very low power during normal operation.
  • the power consumption can be less than 5mW, so even if the hearing aid function of the mobile terminal is turned on for a long time, the impact on the standby time length of the mobile terminal is small.
  • the DAC 123 is configured to receive the processed digital audio signal sent by the DSP 122, convert the processed digital audio signal into an analog digital signal, and send the analog digital signal to the HP via the left channel interface and the right channel interface via the switch 14. PA16.
  • the left channel interface and the right channel interface are two output ports of the DAC 123, and are connected to the output port of the switch 14 as a set of inputs of the switch 14.
  • the ADC 121 is configured to receive an analog audio signal input by the analog MIC 132, convert the analog audio signal into a digital audio signal, and convert the digital audio.
  • the signal is sent to the DSP 122.
  • the DSP 122 is configured to receive the digital audio signal sent by the ADC 121, process the digital audio signal, and send the processed digital audio signal to the DAC 123.
  • the DAC 123 is configured to receive the processed digital audio signal sent by the DSP 122, convert the processed digital audio signal into an analog digital signal, and send the analog digital signal to the HP via the left channel interface and the right channel interface via the switch 14. PA16.
  • the AP 11 and the DSP IC 12 are connected through an I2C (Inter-Integrated Circuit) interface, and the DSP IC 12 further includes a control pin.
  • the switch 14 in the embodiment of the present invention may be a DPDT (Double). Pole Double Throw, double pole double throw) analog switch.
  • the I2C interface is used for transmitting the control command sent by the AP11 to the DSP IC12, and transmitting the control result fed back by the DSP IC12 to the AP11.
  • the control pin is connected to the DPDT analog switch for controlling the connection state of the DPDT analog switch 14 according to the control command sent by the AP11 to the DSP IC12.
  • the DSP IC12 controls according to the control command sent by the AP11.
  • the level of the pin is set to the first level, and the DPDT analog switch 14 is connected to the left channel interface and the right channel interface; when the control function of the mobile terminal is turned off, the DSP IC 12 controls the pin according to the control command sent by the AP11.
  • the level is set to the second level, and the DPDT analog switch 14 is connected to the Codec 15.
  • DSP IC12 and AP11 and Codec15 are connected through SlimBus (Serial Low-power Inter-chip Media Bus) interface or I2S (Inter-IC Sound, integrated circuit built-in audio) interface.
  • SlimBus Serial Low-power Inter-chip Media Bus
  • I2S Inter-IC Sound, integrated circuit built-in audio
  • the AP11 turns off the hearing aid function of the mobile terminal, and controls the DSP IC12 to switch to the through mode.
  • the audio signal input by the MIC 13 is generated by the sound collected from the outside, and at this time, the DSP IC 12 receives After the audio signal input to the MIC 13, the audio signal is not processed, but the audio signal is transmitted to the AP 11 and the Codec 15 through the SlimBus interface or the I2S interface.
  • the audio data transmitted between the DSP IC 12 and the AP 11 and the audio data transmitted between the DSP IC 12 and the Codec 15 are not limited to the audio signal input by the MIC 13, and may be other audio data.
  • the AP11 and the Codec 15 can also send the audio data to be played by the mobile terminal to the DSP IC12, and the DSP IC 12 processes the audio data and then passes the DPDT analog switch 14 And HP PA16 output.
  • the DSP IC 12 since the DSP IC 12 cannot actively communicate with the AP 11, the DSP IC 12 further includes an interrupt output port in the embodiment of the present invention.
  • the DSP IC 12 is configured to send an interrupt message to the AP 11 through an interrupt (IRQ) interrupt request output port, and the interrupt message is used to request communication to the AP 11.
  • IRQ interrupt
  • the DSP IC12 when the DSP IC12 fails, it cannot actively report the fault to the AP11. It needs to send an interrupt message to the AP11 through the interrupt output port. After the AP11 receives the interrupt message, it sends an inquiry message to the DSP IC12 through the I2C interface. IC12 reports the fault to AP11 through the I2C interface.
  • the mobile terminal-based hearing aid device integrates the functions of the hearing aid into the mobile terminal, so that the user can carry the two devices of the mobile terminal and the hearing aid without carrying the charger of the two devices at the same time.
  • Hearing aid users provide convenience.
  • the DSP IC for implementing the hearing aid function is set outside the Codec in the embodiment of the present invention, after the hearing aid function of the mobile terminal is enabled, the Codec and the AP of the mobile terminal are in the energy saving mode, which can reduce the work of the mobile terminal. Consumption, extending the standby time of the mobile terminal.
  • the embodiment of the present invention further provides a mobile terminal, which includes the mobile terminal-based hearing aid device described in the foregoing embodiment, and the mobile terminal is connected to the audio playing device or uses its own audio playing device to implement the function of the hearing aid.
  • the mobile terminal implements the function of the hearing aid, the additional power consumption is small.
  • the present invention can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is a better implementation. .
  • the technical solution of the present invention which is essential or contributes to the prior art, can be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
  • a hard disk or optical disk, etc. includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention.

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Abstract

本发明公开一种基于移动终端的助听装置，包括第一通道与第二通道，第一通道包括依次连接的应用处理器（AP）、数字信号处理集成电路（DSP IC）、开关以及耳机功率放大器（HP PA），其中DSP IC的输入端连接于麦克风（MIC）；第二通道包括依次连接的AP、编码解码器（Codec）、开关、以及HP PA；AP，用于当开启助听器功能时，通过DSP IC控制开关与DSP IC连通，并控制AP以及Codec进入节能模式；DSP IC，用于接收通过MIC输入的待处理音频信号，对待处理音频信号进行处理，将处理后的音频信号经由双刀双掷（DPDT）模拟开关发送至HP PA；HP PA，用于对接收到的音频信号进行放大。本发明可以减小移动终端的功耗，延长移动终端的待机时间。

Description

一种基于移动终端的助听装置 技术领域
本发明涉及移动终端技术领域，尤其涉及一种基于移动终端的助听装置。
背景技术
目前，中国患有听力障碍、需要佩戴助听器的人数非常多，然而只有不到4％的中国老年人使用助听器，鉴于现在手机已经普及，所以为了方便用户使用助听器，提高用户体验，可以将手机与助听器合二为一，在手机中设置助听器。
现有的一种手机中的助听器的工作原理为：用户周围的声音通过手机麦克风进入编码解码器，然后通过编码解码器中的模拟回路或者数字回路到达耳机放大器，推动耳机扬声器发声。
然而，利用手机的编码解码器实现助听器的功能时，助听器需要长期打开，手机中的编码解码器也需要长时间运行，会导致手机的功耗大幅度上升，缩短手机的待机时间。
发明内容
本发明的实施例提供一种基于移动终端的助听装置，在移动终端上实现助听功能时，可以减小移动终端的功耗，延长移动终端的待机时间。
为达到上述目的，本发明的实施例采用如下技术方案：
第一方面，本发明实施例提供一种基于移动终端的助听装置，所述装置包括：应用处理器AP、数字信号处理集成电路DSP IC、麦克风MIC、开关、编码解码器Codec以及耳机功率放大器HP PA，所述开关用于进行第一通道与第二通道之间的切换；
所述第一通道包括依次连接的所述AP、所述DSP IC、所述开关以及所述HP PA，其中所述DSP IC的输入端连接于所述MIC；
所述第二通道包括依次连接的所述AP、所述Codec、所述开关、以及所述HP PA；
所述AP，用于当开启助听器功能时，通过所述DSP IC控制所述开关与所述DSP IC连通，并控制所述AP以及所述Codec进入节能模式；
所述DSP IC，用于接收通过所述MIC输入的待处理音频信号，对所述待处理音频信号进行处理，将处理后的音频信号经由所述DPDT模拟开关发送至所述HP PA；
所述HP PA，用于对接收到的音频信号进行放大。
本发明实施例提供的基于移动终端的助听装置，相比于现有技术中利用移动终端中的Codec实现助听器功能，Codec长期运行导致移动终端功耗大幅上升，减少了移动终端的待机时间相比，本发明实施例通过在移动终端中设置DSP IC以及开关实现了在助听功能开启时，开启第一通道，将AP以及Codec设置为节能模式，由专门用于实现助听器功能的DSP IC对待处理的音频信号进行处理，由于DSP IC处理音频信号的功耗远低于Codec运行时的功耗，所以可以减小移动终端的功耗，延长移动终端的待机时间。
结合第一方面，需要指出的是，所述MIC为数字MIC，所述DSP IC包括数字信号处理器DSP、数模转换器DAC以及左声道接口、右声道接口，所述DSP IC通过所述左声道接口以及所述右声道接口与所述开关相连；
所述DSP，用于接收所述数字MIC发送的数字音频信号，对所述数字音频信号进行处理，将处理后的数字音频信号发送给所述DAC；
所述DAC，用于接收所述DSP发送的处理后的数字音频信号，将所述处理后的数字音频信号转换为模拟数字信号，并将所述模拟数字信号通过所述左声道接口以及所述右声道接口，经由所述开关发送给所述HP PA。
结合第一方面，还需指出的是，所述MIC为模拟MIC，所述DSP IC包括模数转换器ADC、数字信号处理器DSP、数模转换器DAC以及左声道接口、右声道接口，所述DSP IC通过所述左声道接口以及所述右声道接口与所述开关相连；
所述ADC，用于接收所述模拟MIC输入的模拟音频信号，将所述模拟音频信号转换为数字音频信号，并将所述数字音频信号发送给所述DSP；
所述DSP，用于接收所述ADC发送的所述数字音频信号，对所述数字 音频信号进行处理，将处理后的数字音频信号发送给所述DAC；
所述DAC，用于接收所述DSP发送的处理后的数字音频信号，将所述处理后的数字音频信号转换为模拟数字信号，并将所述模拟数字信号通过所述左声道接口以及所述右声道接口，经由所述开关发送给所述HP PA。
在第一方面的基础上，所述开关为双刀双掷DPDT模拟开关，所述AP与所述DSP IC通过两线式串行总线I2C接口连接，所述DSP IC还包括控制管脚；
所述I2C接口，用于传输所述AP向所述DSP IC发送的控制指令，以及传输所述DSP IC向所述AP反馈的控制结果；
所述控制管脚，与所述DPDT模拟开关相连，用于根据所述AP向所述DSP IC发送的控制指令，控制所述DPDT模拟开关的连接状态，当所述移动终端的控制功能开启时，所述DSP IC根据所述AP发送的控制指令将所述控制管脚的电平置为第一电平，所述DPDT模拟开关与所述左声道接口和所述右声道接口连通；当所述移动终端的控制功能关闭时，所述DSP IC根据所述AP发送的控制指令将所述控制管脚的电平置为第二电平，所述DPDT模拟开关与所述Codec连通。
对于本发明实施例提供的基于移动终端的助听装置，由DSP IC以及开关在移动终端上实现了助听器功能，由于DSP IC基于低功耗的DSP设计，采用低功耗的DSP使得DSP IC在正常运行时的功耗极低，所以即使长时间开启移动终端的助听器功能，对于移动终端的待机时间长度的影响也比较小，所以相比于现有技术减少了移动终端的功耗，延长了移动终端的待机时间。
结合第一方面，需要说明的是，所述DSP IC与所述AP和所述Codec通过低功耗芯片间串行媒体总线SlimBus接口或集成电路内置音频I2S接口连接；
所述SlimBus接口或所述I2S接口，用于传输所述DSP IC与所述AP之间的音频数据，以及传输所述DSP IC与所述Codec之间的音频数据。
对于本发明实施例，由于DSP IC与AP和Codec之间有用于传输音频数据的接口，所以在关闭移动终端的助听器功能时，DSP IC仍能将MIC 输入的信号传输给AP和Codec，保证了移动终端既能够作为助听器使用，又可以正常的实现语音通话功能。
在第一方面的基础上，所述DSP IC还包括中断输出端口；
所述DSP IC，用于通过所述中断输出端口向所述AP发送中断消息，所述中断消息用于请求向所述AP进行通信。
结合第一方面，还需说明的是，所述DSP IC，还用于向所述数字MIC提供所述数字MIC的时钟。
在第一方面的基础上，所述HP PA的输出端连接于耳机接口，所述HP PA将接收到的音频信号进行放大后，通过所述耳机接口传输至连接于所述耳机接口的耳机；或者，
所述HP PA将接收到的音频信号进行放大后，传输至与所述移动终端存在无线连接的音频播放设备。
本发明实施例提供的基于移动终端的助听装置，将助听器的功能集成在移动终端中，用户只需使用移动终端时佩戴耳机就能够使用助听器的功能，使用户可以无需同时携带移动终端和助听器两种设备，且无需携带这两种设备的充电器，为助听器用户提供了便利。
第二方面，本发明实施例提供一种移动终端，包括：如第一方面中所述的基于移动终端的助听装置。
本发明实施例提供的移动终端，相比于现有技术中利用移动终端中的Codec实现助听器功能，Codec长期运行导致移动终端功耗大幅上升，减少了移动终端的待机时间相比，本发明实施例通过在移动终端中设置DSP IC以及开关实现了在助听功能开启时，开启第一通道，将AP以及Codec设置为节能模式，由专门用于实现助听器功能的DSP IC对待处理的音频信号进行处理，由于DSP IC处理音频信号的功耗远低于Codec运行时的功耗，所以可以减小移动终端的功耗，延长移动终端的待机时间。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地， 下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的一种基于移动终端的助听装置的逻辑结构示意图；
图2为本发明实施例提供的另一种基于移动终端的助听装置的逻辑结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
为了减小具有助听器功能的移动终端的功耗，增长移动终端的待机时间，本发明实施例提供了一种基于移动终端的助听装置，如图1所示，该装置包括：AP(Application Processor，应用处理器)11、DSP IC(Digital Signal Processing Integrated circuit，数字信号处理集成电路)12、MIC(microphone，麦克风)13、开关14、Codec(编码解码器)15以及HP PA(Headphone Power Amplifier，耳机功率放大器)16；
其中，开关1用于进行第一通道与第二通道之间的切换。
第一通道包括依次连接的AP11、DSP IC12、开关14以及HP PA16，其中DSP IC12的输入端连接于MIC13，第一通道用于实现移动终端中的助听器功能。
第二通道包括依次连接的AP11、Codec15、开关14、以及HP PA16，第二通道用于实现移动终端的普通音频传输功能，例如播放音乐，语音通话等。
其中，Codec15还连接于RCV(Receiver，受话器)，Codec15也可以通过RCV输出音频信号。
AP11，用于当开启助听器功能时，通过DSP IC12控制开关14与DSP  IC12连通，并控制AP11以及Codec15进入节能模式。
其中，节能模式区别于工作模式，在工作模式下，AP11以及Codec15中的所有功能处于开启状态，未被使用的功能也会产生功耗，会导致移动终端的待机时间缩短。而节能模式是指将AP11以及Codec15中处于未使用状态的功能暂时关闭，时钟频率会大幅度降低，从而达到省电的目的。
可以理解的是，当开启助听器功能时，开关14与DSP IC12连通，即手机通过第二通道实现移动终端中的助听器功能，此时AP11与Codec15的利用率较低，所以可以进入节能模式，以减少移动终端的功耗。
DSP IC12，用于接收通过MIC13输入的待处理音频信号，对待处理音频信号进行处理，将处理后的音频信号经由开关14发送至HP PA16。
其中，DSP IC12在接收到待处理音频信号后，需运行针对助听器的信号处理算法，以完成对待处理信号的处理。
需要说明的是，MIC13可以为移动终端的MIC，在使用移动终端实现助听器功能时，移动终端可以与耳机连接，HP PA16的输出信号传输至耳机以实现助听器功能。当移动终端中接入耳机时，移动终端的MIC依然可以输入音频信号。
HP PA16，用于对接收到的音频信号进行放大。
在本发明实施例提供的一种实现方式中，HP PA的输出端连接于耳机接口，HP PA16对接收到的音频信号进行放大之后，将放大后的音频信号通过耳机接口传输至连接于耳机接口耳机，以实现助听器功能。
或者，HP PA16将接收到的音频信号进行放大后，将放大后的音频信号传输至与移动终端存在无线连接的音频播放设备，例如蓝牙耳机等。
本发明实施例提供的基于移动终端的助听装置，相比于现有技术中利用移动终端中的Codec实现助听器功能，Codec长期运行导致移动终端功耗大幅上升，减少了移动终端的待机时间相比，本发明实施例通过在移动终端中设置DSP IC以及开关实现了在助听功能开启时，开启第一通道，将AP以及Codec设置为节能模式，由专门用于实现助听器功能的DSP IC对待处理的音频信号进行处理，由于DSP IC处理音频信号的功耗远低于Codec运行时的功耗，所以可以减小移动终端的功耗，延长移动终端的待 机时间。
以下对移动终端的第一通道与第二通道的通信过程进行具体说明。
第一通道：当AP11开启助听器功能时，AP11通过DSP IC12控制开关14与DSP IC12连通，此时第一通道开启。MIC13采集声音，生成待处理音频信号，将待处理音频信号输入至DSP IC12，DSP IC12对待处理音频信号进行处理，将处理后的音频信号经由开关14发送至HP PA16，由HP PA16对接收到的音频信号进行放大并输出。
需要说明的是，在移动终端的助听器功能处于开启状态的情况下，如果AP11检测到移动终端进行语音通话，会关闭助听器功能，切换到第二通道，当确定语音通话结束后，会自动开启助听器功能，切换到第一通道。
第二通道：当AP11检测到移动终端进行语音通话时，会关闭助听器功能，AP11通过DSP IC12控制开关14与Codec15连通，此时第二通道开启。AP11控制DSP IC12开启直通模式，即DSP IC12接收到MIC13输入的待处理音频信号后不进行任何处理，直接将该待处理音频信号发送给AP11以及Codec15，由AP11以及Codec15完成正常的通话功能，语音通话时对端的音频信号由Codec15经由开关14发送给HP PA16，之后由HP PA16输出。此外，当助听器功能处于关闭状态时，在不需要语音输入的情况下，DSP IC12将处于休眠模式，当需要语音输入时，DSP IC12切换至直通模式，将从MIC接收到的信号直接发送给AP11和/或Codec15。
结合图1所示的基于移动终端的助听装置，在本发明实施例提供的另一种实现方式中，在图1所示的装置的基础上，对该装置中各模块的组成以及连接关系进行了详细描述，如图2所示，MIC13为数字MIC131或者模拟MIC132，DSP IC12包括模数转换器ADC121、数字信号处理器DSP122、数模转换器DAC123 以及左声道接口(Hearing Aid-L)、右声道接口(Hearing Aid-R)，其中，DSP IC12通过左声道接口以及右声道接口与开关14相连。
需要说明的是，MIC13为移动终端的音频接收装置，可以为数字MIC131，或者也可以为模拟MIC132。图2同时示出了数字MIC131和模拟MIC132，实际上移动终端中的MIC13为数字MIC131和模拟MIC132中的其 中一个，不会存在数字MIC131和模拟MIC132同时工作，所以当MIC13为数字MIC131时，DSP122直接接收数字MIC131发送的数字音频信号，当MIC13为模拟MIC131时DSP122接收ADC121发送的数字音频信号。
在本发明实施例的一种实现方式中，当移动终端的MIC13具体为数字MIC131时，DSP IC12中可以不设置ADC121。
其中，数字MIC131的时钟由DSP IC12提供，具体由DSP IC12中的DSP122提供。
DSP122，用于接收数字MIC131发送的数字音频信号，对数字音频信号进行处理，将处理后的数字音频信号发送给DAC123。
需要说明的是，DSP122为DSP IC12中的低功耗DSP内核，可以运行用于实现助听功能的信号处理算法。
DSP IC12基于该低功耗的DSP122设计，正常运行时功耗很低，该功耗可以小于5mW,所以即使长时间开启移动终端的助听器功能，对于移动终端的待机时间长度影响也较小。
DAC123，用于接收DSP122发送的处理后的数字音频信号，将处理后的数字音频信号转换为模拟数字信号，并将模拟数字信号通过左声道接口以及右声道接口，经由开关14发送给HP PA16。
其中，左声道接口和右声道接口为DAC123的两个输出端口，作为开关14的一组输入，连接于开关14的输出端口。
在本发明实施例的另一种实现方式中，当移动终端的MIC13为模拟MIC132时，ADC121，用于接收模拟MIC132输入的模拟音频信号，将模拟音频信号转换为数字音频信号，并将数字音频信号发送给DSP122。
DSP122，用于接收ADC121发送的数字音频信号，对数字音频信号进行处理，将处理后的数字音频信号发送给DAC123。
DAC123，用于接收DSP122发送的处理后的数字音频信号，将处理后的数字音频信号转换为模拟数字信号，并将模拟数字信号通过左声道接口以及右声道接口，经由开关14发送给HP PA16。
以上为对DSP IC12的组成以及各模块功能的介绍，另外，本发明实施例将结合图2对基于移动终端的助听装置中各部分的连接关系进行说 明。
AP11与DSP IC12通过I2C(Inter－Integrated Circuit，两线式串行总线)接口连接，DSP IC12还包括控制管脚，另外还需说明的是，本发明实施例中的开关14可以为DPDT(Double Pole Double Throw，双刀双掷)模拟开关。
其中，I2C接口，用于传输AP11向DSP IC12发送的控制指令，以及传输DSP IC12向AP11反馈的控制结果。
控制管脚，与DPDT模拟开关相连，用于根据AP11向DSP IC12发送的控制指令，控制DPDT模拟开关14的连接状态，当移动终端的控制功能开启时，DSP IC12根据AP11发送的控制指令将控制管脚的电平置为第一电平，DPDT模拟开关14与左声道接口和右声道接口连通；当移动终端的控制功能关闭时，DSP IC12根据AP11发送的控制指令将控制管脚的电平置为第二电平，DPDT模拟开关14与Codec15连通。
另外，DSP IC12与AP11和Codec15通过SlimBus(Serial Low-power Inter-chip Media Bus，低功耗芯片间串行媒体总线)接口或I2S(Inter—IC Sound，集成电路内置音频)接口连接。
SlimBus接口或I2S接口，用于传输DSP IC12与AP11之间的音频数据，以及传输DSP IC12与Codec15之间的音频数据。
例如，当移动终端需要进行语音通话时，AP11会关闭移动终端的助听器功能，并控制DSP IC12切换至直通模式，MIC13输入的音频信号是由从外界采集的声音生成的，此时，DSP IC12接收到MIC13输入的音频信号之后，不对该音频信号进行处理，而是通过SlimBus接口或I2S接口将该音频信号传输至AP11以及Codec15。
需要说明的是，DSP IC12与AP11之间传输的音频数据以及DSP IC12与Codec15之间传输的音频数据不限制于MIC13输入的音频信号，还可以为其他的音频数据。例如，在一种实现方式中，在助听器功能开启的情况下，AP11和Codec15还可以将移动终端需播放的音频数据发送给DSP IC12，由DSP IC12对音频数据进行处理后再通过DPDT模拟开关14以及HP PA16输出。
还需说明的是，在本发明实施例中，由于HP PA16处理的是模拟信号，所以Codec15中还设置有DAC。
此外，由于DSP IC12不能主动与AP11进行通信，所以，在本发明实施例中DSP IC12还包括中断输出端口。
DSP IC12，用于通过中断(IRQ，interruption request)输出端口向AP11发送中断消息，中断消息用于请求向AP11进行通信。
例如，当DSP IC12出现故障时，不能主动向AP11报告故障，需要先通过中断输出端口向AP11发送一个中断消息，待AP11接收到中断消息后，会通过I2C接口向DSP IC12发送询问消息，进而DSP IC12通过I2C接口向AP11报告故障。
本发明实施例提供的基于移动终端的助听装置，将助听器的功能集成在移动终端中，使用户可以无需同时携带移动终端和助听器两种设备，且无需携带这两种设备的充电器，为助听器用户提供了便利。另外，由于本发明实施例中在Codec外设置了用于实现助听功能的DSP IC，在开启移动终端的助听功能后，移动终端的Codec和AP都处于节能模式，可以减少移动终端的功耗，延长移动终端的待机时间。
本发明实施例还提供一种移动终端，该移动终端中包括上述实施例中描述的基于移动终端的助听装置，该移动终端与音频播放设备相连或者采用自身的音频播放装置可以实现助听器的功能，该移动终端实现助听器的功能时，额外消耗的功耗较小。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到本发明可借助软件加必需的通用硬件的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在可读取的存储介质中，如计算机的软盘，硬盘或光盘等，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述的方法。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可 轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (9)

  1. 一种基于移动终端的助听装置，其特征在于，所述装置包括：应用处理器AP、数字信号处理集成电路DSP IC、麦克风MIC、开关、编码解码器Codec以及耳机功率放大器HP PA，所述开关用于进行第一通道与第二通道之间的切换；
    所述第一通道包括依次连接的所述AP、所述DSP IC、所述开关以及所述HP PA，其中所述DSP IC的输入端连接于所述MIC；
    所述第二通道包括依次连接的所述AP、所述Codec、所述开关、以及所述HP PA；
    所述AP，用于当开启助听器功能时，通过所述DSP IC控制所述开关与所述DSP IC连通，并控制所述AP以及所述Codec进入节能模式；
    所述DSP IC，用于接收通过所述MIC输入的待处理音频信号，对所述待处理音频信号进行处理，将处理后的音频信号经由所述DPDT模拟开关发送至所述HP PA；
    所述HP PA，用于对接收到的音频信号进行放大。
  2. 根据权利要求1所述的基于移动终端的助听装置，其特征在于，所述MIC为数字MIC，所述DSP IC包括数字信号处理器DSP、数模转换器DAC以及左声道接口、右声道接口，所述DSP IC通过所述左声道接口以及所述右声道接口与所述开关相连；
    所述DSP，用于接收所述数字MIC发送的数字音频信号，对所述数字音频信号进行处理，将处理后的数字音频信号发送给所述DAC；
    所述DAC，用于接收所述DSP发送的处理后的数字音频信号，将所述处理后的数字音频信号转换为模拟数字信号，并将所述模拟数字信号通过所述左声道接口以及所述右声道接口，经由所述开关发送给所述HP PA。
  3. 根据权利要求1所述的基于移动终端的助听装置，其特征在于，所述MIC为模拟MIC，所述DSP IC包括模数转换器ADC、数字信号处理器DSP、数模转换器DAC以及左声道接口、右声道接口，所述DSP IC通过所述左声道接口以及所述右声道接口与所述开关相连；
    所述ADC，用于接收所述模拟MIC输入的模拟音频信号，将所述模拟 音频信号转换为数字音频信号，并将所述数字音频信号发送给所述DSP；
    所述DSP，用于接收所述ADC发送的所述数字音频信号，对所述数字音频信号进行处理，将处理后的数字音频信号发送给所述DAC；
    所述DAC，用于接收所述DSP发送的处理后的数字音频信号，将所述处理后的数字音频信号转换为模拟数字信号，并将所述模拟数字信号通过所述左声道接口以及所述右声道接口，经由所述开关发送给所述HP PA。
  4. 根据权利要求2或3所述的基于移动终端的助听装置，其特征在于，所述开关为双刀双掷DPDT模拟开关，所述AP与所述DSP IC通过两线式串行总线I2C接口连接，所述DSP IC还包括控制管脚；
    所述I2C接口，用于传输所述AP向所述DSP IC发送的控制指令，以及传输所述DSP IC向所述AP反馈的控制结果；
    所述控制管脚，与所述DPDT模拟开关相连，用于根据所述AP向所述DSP IC发送的控制指令，控制所述DPDT模拟开关的连接状态，当所述移动终端的控制功能开启时，所述DSP IC根据所述AP发送的控制指令将所述控制管脚的电平置为第一电平，所述DPDT模拟开关与所述左声道接口和所述右声道接口连通；当所述移动终端的控制功能关闭时，所述DSP IC根据所述AP发送的控制指令将所述控制管脚的电平置为第二电平，所述DPDT模拟开关与所述Codec连通。
  5. 根据权利要求4所述的基于移动终端的助听装置，其特征在于，所述DSP IC与所述AP和所述Codec通过低功耗芯片间串行媒体总线SlimBus接口或集成电路内置音频I2S接口连接；
    所述SlimBus接口或所述I2S接口，用于传输所述DSP IC与所述AP之间的音频数据，以及传输所述DSP IC与所述Codec之间的音频数据。
  6. 根据权利要求5所述的基于移动终端的助听装置，其特征在于，所述DSP IC还包括中断输出端口；
    所述DSP IC，用于通过所述中断输出端口向所述AP发送中断消息，所述中断消息用于请求向所述AP进行通信。
  7. 根据权利要求6所述的基于移动终端的助听装置，其特征在于，
    所述DSP IC，还用于向所述数字MIC提供所述数字MIC的时钟。
  8. 根据权利要求1至7中任一项所述的基于移动终端的助听装置，其特征在于，所述HP PA的输出端连接于耳机接口，所述HP PA将接收到的音频信号进行放大后，通过所述耳机接口传输至连接于所述耳机接口的耳机；或者，
    所述HP PA将接收到的音频信号进行放大后，传输至与所述移动终端存在无线连接的音频播放设备。
  9. 一种移动终端，其特征在于，包括：如权利要求1至8中任一项所述的基于移动终端的助听装置。
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