WO2018090680A1 - 一种USB Type C耳机的控制方法、装置和终端 - Google Patents

一种USB Type C耳机的控制方法、装置和终端 Download PDF

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Publication number
WO2018090680A1
WO2018090680A1 PCT/CN2017/096464 CN2017096464W WO2018090680A1 WO 2018090680 A1 WO2018090680 A1 WO 2018090680A1 CN 2017096464 W CN2017096464 W CN 2017096464W WO 2018090680 A1 WO2018090680 A1 WO 2018090680A1
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data
usb
terminal
headset
usb type
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PCT/CN2017/096464
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English (en)
French (fr)
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赵桀
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西安中兴新软件有限责任公司
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Publication of WO2018090680A1 publication Critical patent/WO2018090680A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G11B2020/10537—Audio or video recording
    • G11B2020/10546—Audio or video recording specifically adapted for audio data
    • 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 audio device technologies, and in particular, to a USB Type C earphone control method, apparatus, and terminal.
  • USB Type C interface has the advantages of supporting forward and backward insertion, fast transmission speed (maximum data transmission speed can reach 20Gbit/s), and support for fast charging.
  • USB Type C headphones are rare in the market, and the implementation schemes corresponding to their mobile phones are also different.
  • a mobile phone side internal implementation scheme is: processing the audio data format conversion by using a USB Driver (Universal Serial Bus Driver) in the internal processor of the mobile phone, as shown in FIG. 1 , transmitting and receiving data during the mobile phone call and audio when playing music. The data needs to be routed through the USB Driver inside the application processor AP (Application Processors).
  • AP Application Processors
  • the USB Driver receives the PCM data output from the Modem to the ADSP (Audio Digital Signal Processing), converts it into USB data, and finally outputs it through the Type C interface.
  • ADSP Analog Signal Processing
  • the USB Driver When sending mobile phone call uplink voice data, the USB Driver will convert the USB data to PCM data to the ADSP. When the music is played on the mobile phone, the USB Driver will receive the internal audio data of the AP, convert it into USB data, and finally output it through the Type C interface. However, using the USB Driver to convert the data to realize the call, the original call can be made.
  • the dormant mobile phone internal processor AP is awakened, which not only increases the power consumption of the mobile phone, but also greatly increases the call delay, and eventually the call delay does not reach the network access test standard.
  • Figure 2 shows another handset-side internal solution corresponding to a digital-to-analog mixed Type C headset.
  • the solution has two channels connected to the earphone speaker on the earphone side, one analog audio signal is directly output to the speaker (analog path), and the other uses a USB to I2S audio data chip and a DAC (Digital to Analog Converter).
  • the chip's solution will simulate an audio letter The number is output to the speaker (digital path), and finally which audio signal enters the headphone speaker, and is selected by the switch at the front end.
  • the switch in Figure 2 will choose to connect the digital channel. If the mobile phone is used for talking, then the switch in Figure 2 will choose to connect the analog channel. This solution can solve the call delay. Not a problem with the test standard.
  • the technical problem to be solved by the present invention is to provide a method, a device and a terminal for controlling a USB Type C earphone, which are used to solve the problem of high power consumption and delay of the call using the USB Type C earphone in the prior art.
  • an embodiment of the present invention provides a method for controlling a USB Type C headset, including:
  • USB Type C headset When the USB Type C headset is used for the call, the USB data and the pulse code modulated PCM data are converted by the field programmable gate array FPGA module, and then a voice call is performed;
  • the audio data and the USB data are converted by the FPGA module to perform music playing and/or recording;
  • the FPGA module disposed on the terminal is independent of the application processor AP of the terminal.
  • the method further includes:
  • the audio data and the USB data are converted by the USB driver in the AP, and it is determined whether the performance parameter and/or the power consumption parameter of the USB driver in the AP meet the preset parameter requirement. If yes, perform music playback and/or recording; if not, switch to convert audio data and USB data through the FPGA module, Play music and / or record.
  • transmitting voice information of the headset side to the peer end includes:
  • USB Type C interface Receiving USB data transmitted by the earphone to the terminal through a USB Type C interface, wherein the USB data is collected by the earphone through its microphone, and the voice information is converted into USB data;
  • the terminal After receiving the USB data, the terminal converts the USB data into PCM data by using the FPGA module;
  • the terminal transmits the PCM data through a radio frequency antenna and transmits the data to the opposite end.
  • the process for the terminal to transmit the PCM data by using the radio frequency antenna includes:
  • the audio digital signal processor ADSP on the terminal performs voice processing on the PCM data, and transmits the processed PCM data to a modem on the terminal;
  • the modem modulates the received PCM data to obtain a voice signal and transmits the voice signal through a radio frequency antenna.
  • sending, by the terminal, the information to the headset includes:
  • the terminal receives PCM data
  • the terminal converts the PCM data into USB data through the FPGA module
  • the terminal transmits the USB data to a headset through a USB Type C interface, and the USB data is played by the headset.
  • the process for the terminal to receive PCM data includes:
  • the terminal receives the modulated voice signal through its radio frequency antenna, and demodulates the voice signal through its modem to generate PCM data;
  • the ADSP on the terminal performs voice processing on the PCM data, and sends the processed PCM data to the FPGA module.
  • the terminal switches, by using the FPGA module, a data connection channel for playing music, recording, or talking with the USB Type C headset.
  • an embodiment of the present invention further provides a control device for a USB Type C headset, including an FPGA module, where the FPGA module is independent of an application processor of the terminal, and is configured to perform sound data on the terminal and the USB Type C headset.
  • the USB data is converted, and the terminal and the USB Type C headset are in a data connection channel for playing music, recording or talking.
  • control device further includes:
  • a modem configured to modulate and demodulate PCM data
  • An audio digital signal processor ADSP is respectively connected to the modem and the FPGA module, and is configured to perform voice processing on the PCM data;
  • the USB Type C interface is connected to the FPGA module and configured to transmit USB data between the terminal and the USB Type C headset.
  • control device further includes a USB driver integrated in the application processor of the terminal, configured to convert the audio data and the USB data when the application processor of the terminal is in an active state.
  • a USB driver integrated in the application processor of the terminal, configured to convert the audio data and the USB data when the application processor of the terminal is in an active state.
  • an embodiment of the present invention further provides a terminal, where the terminal uses the control device of the USB Type C headset to perform data conversion, and realizes playing music, recording, or talking through a USB Type C headset.
  • a storage medium is also provided.
  • the storage medium is arranged to store program code for performing the following steps:
  • the USB data and the pulse code modulated PCM data are converted by the field programmable gate array FPGA module, and then a voice call is performed;
  • the USB Type C earphone is used for music playback and/or Or during recording, the audio data and the USB data are converted by the FPGA module to perform music playback and/or recording; wherein the FPGA module disposed on the terminal is independent of the application processor AP of the terminal.
  • the storage medium is further arranged to store program code for performing the following steps:
  • the storage medium is further arranged to store program code for performing the following steps:
  • transmitting the voice information on the headset side to the peer end includes: receiving USB data transmitted by the headset to the terminal through the USB Type C interface, where the USB data is passed by the headset
  • the microphone collects voice information and converts the voice information into USB data; after receiving the USB data, the terminal converts the USB data into PCM data through the FPGA module; the terminal passes the PCM through a radio frequency antenna The data is transmitted and transmitted to the peer.
  • the storage medium is further arranged to store program code for performing the following steps:
  • the process of transmitting, by the terminal, the PCM data by using the radio frequency antenna comprising: performing audio processing on the PCM data by the audio digital signal processor ADSP on the terminal, and transmitting the processed PCM data to a modem on the terminal;
  • the modem modulates the received PCM data to obtain a voice signal, and transmits the voice signal through the RF antenna.
  • the storage medium is further arranged to store program code for performing the following steps:
  • the terminal sending information to the headset includes: the terminal receives PCM data; the terminal converts the PCM data into USB data through the FPGA module; and the terminal passes the USB Type C
  • the interface transmits the USB data to a headset, and the USB data is played by the headset.
  • the storage medium is further arranged to store program code for performing the following steps:
  • the process of receiving the PCM data by the terminal includes: the terminal is connected through its radio frequency antenna Receiving a modulated speech signal and demodulating the speech signal by its modem to generate PCM data; ADSP on the terminal performs speech processing on the PCM data, and sends the processed PCM data to the FPGA Module.
  • the embodiment of the invention uses the ultra-low power consumption FPGA module independent of the terminal AP to convert the audio data format, thereby avoiding waking up the entire AP to start the USB driver to convert the audio data format during the call, thereby reducing power consumption and delay.
  • FIG. 1 is a structural diagram of a prior art communication device for converting a data format by using a USB Type C headset through a USB Driver;
  • FIG. 2 is a structural diagram of an apparatus for making a call using a Type C headset in the prior art
  • FIG. 3 is a flowchart of a method for controlling a USB Type C headset during an uplink call according to an embodiment of the present invention
  • FIG. 4 is a flowchart of a method for controlling a USB Type C headset during a downlink call according to an embodiment of the present invention
  • FIG. 5 is a structural diagram of a control device for a USB Type C earphone according to an embodiment of the present invention.
  • FIG. 6 is a structural diagram of a call system for converting data through an FPGA module according to an embodiment of the present invention.
  • the present invention provides a method, a device and a terminal for controlling the USB Type C earphone.
  • the present invention will be described below with reference to the accompanying drawings and embodiments. Further details will be given. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
  • the USB Type C earphone control method of the embodiment of the invention converts the audio data format through the FPGA module when the terminal and the USB Type C earphone perform sound data transmission; the FPGA module is independent of the terminal AP.
  • USB Type C headphones need to be applied to three scenarios: playing music, recording, and talking.
  • the channel for playing music, recording, and talking can be switched through the FPGA module, which can save the switch used when switching calls and playing music and recording channels, saving the device while avoiding the performance of the switch affecting the sound quality and optimizing the user.
  • PCM Pulse-code Modulation
  • the audio data and the USB data can be converted by the USB driver integrated in the terminal AP.
  • the audio data and the USB data can be converted by the FPGA module, which is beneficial to improving the quality of the data in real time and improving the various indicators for playing music.
  • the terminal takes a mobile phone as an example, and a structure of a call system for converting data through an FPGA module is shown in FIG. 6.
  • the control method of a USB Type C earphone in the uplink call according to the embodiment of the present invention is as shown in FIG. 3, first, the earphone passes the MIC (microphone). The voice information is collected and the voice information is converted into USB data; then the headset transmits the USB data to the terminal through the USB Type C interface. After receiving the USB data, the terminal converts the USB data into PCM data through the FPGA module; finally, the terminal transmits the PCM data through the RF antenna.
  • the embodiment includes the following steps:
  • step s301 the earphone collects voice information through the MIC.
  • step s302 the voice information is subjected to analog-to-digital conversion to generate an I2S data signal.
  • an analog-to-digital conversion is performed by an ADC (Analog-to-Digital Converter) chip into an I2S data signal.
  • ADC Analog-to-Digital Converter
  • the USB Controller of some models of USB Type C headphones integrates the functions of the ADC.
  • the MIC collects the voice signal and directly inputs the USB Controller.
  • the ADC chip is no longer needed.
  • there is also an MIC integrated with the ADC chip There is no need to add an ADC chip here.
  • step s303 the I2S data signal is received by the USB Controller (USB controller), and the I2S data signal is converted into USB data.
  • the headphone side USB Controller receives the voice I2S data signal and converts it into USB data, and transmits it to the mobile phone side DP and DN through the DP and DN in FIG. 6.
  • step s304 the headset transmits USB data to the terminal through the USB Type C interface.
  • the terminal receives the USB data and converts the USB data into PCM data through the FPGA module.
  • the mobile phone side receives the USB voice data signal, and the FPGA module converts the USB to PCM data through hard decoding and encoding.
  • the FPGA module enables the DP and DN signals of the USB Type C socket to be connected only to the USB Driver in the mobile phone AP, when the USB Type C headset is in the voice call scene.
  • the FPGA module makes the DP and DN signals of the USB Type C socket only connect to the FPGA module data conversion interface.
  • Step s306 the ADSP performs voice processing on the PCM data, and the processed PCM number It is sent to the modem (modem).
  • the mobile phone side ADSP receives the PCM data of the FPGA, and implements voice processing, such as echo cancellation and noise reduction processing, and outputs PCM code stream data to the Modem.
  • the Modem modulates the received PCM data, and transmits the modulated voice signal through the RF antenna.
  • the modem side of the mobile phone receives the PCM voice data from the ADSP, and transmits the modulated signal through the radio frequency antenna through modulation and demodulation, thereby completing the transmission of the uplink voice signal.
  • the terminal uses a mobile phone as an example.
  • a USB Type C headset control method in a downlink call is as shown in FIG. 4, first, the terminal receives PCM data; then the terminal converts the PCM data into an FPGA module through the FPGA module. USB data, and the USB data is transmitted to the earphone through a USB Type C interface; finally, the earphone plays the USB data.
  • the embodiment includes the following steps:
  • step s401 the terminal receives the modulated speech signal through the radio frequency antenna, and demodulates the speech signal through the Modem to generate PCM data.
  • the generated PCM data is sent to the ADSP.
  • step s402 the ADSP performs voice processing on the PCM data, and sends the processed PCM data to the FPGA module.
  • the ADSP after receiving the PCM data of the Modem, the ADSP performs voice processing such as echo processing and noise reduction, and outputs PCM data to the FPGA module.
  • step s403 the terminal converts the PCM data into USB data through the FPGA module.
  • the FPGA module after receiving the PCM data, the FPGA module performs data format conversion, converts the PCM data into USB data, and transmits the data to the USB Type C interface, which is a USB Type C headphone jack in this embodiment.
  • step s404 the terminal transmits the USB data to the earphone through the USB Type C interface.
  • step s405 the earphone receives the USB data and converts the USB data into an I2S data signal through the USB controller.
  • step s406 the I2S data signal is digital-to-analog converted to generate voice information.
  • step s407 the earphone plays the voice information through the speaker, thereby completing the downlink transmission of the voice call.
  • a USB Type C earphone control device of the embodiment of the present invention includes a Modem, an ADSP, an FPGA module, a USB Type C interface, and a USB Driver, wherein the USB Driver is integrated in the mobile phone AP, and the Modem is connected to the ADSP.
  • the FPGA module is connected to the ADSP, USB Type C interface, and USB Driver.
  • Modem is used to modulate and demodulate PCM data;
  • ADSP is used for voice processing of PCM data;
  • FPGA module is independent of the application processor of the terminal, and is set to perform USB data when the terminal and the USB Type C headset perform sound data transmission.
  • the USB Type C interface is set to transfer USB data between the terminal and the USB Type C headset;
  • the USB Driver is set to convert audio data and USB data.
  • the above AP, ADSP, Modem and USB Driver are integrated in the mobile phone platform chip, only the ADSP belongs to the audio subsystem, and the modem belongs to the modem module, which is a relatively independent module compared to the AP and the USB Driver.
  • the above ultra low power FPGA chip and USB Type C interface are independent devices.
  • the FPGA module disconnects the USB Driver and the USB Type C interface, so that the uplink USB voice data enters the FPGA module through the USB Type C interface, and converts the uplink USB voice data into the Slimbus/I2S data.
  • the output is output to the ADSP for echo processing or denoising processing, and then the Modem modulated signal is used to transmit the voice information. Since the downlink and uplink call scene data stream channels are the same, they are not described here.
  • the structure of a call system for converting data through the FPGA module in this embodiment is as shown in FIG. 6.
  • the VBUS (5V) power supply is required on the mobile phone side, and the power conversion is performed by DCDC (DC-DC converter) or LDO (Low Dropout regulator) chip, and the USB Controller is provided. And the power of other chips. If you need a mobile phone to provide VBUS power, through the Type C protocol, you need to connect the 5.1k resistor to the ground on the CC1 pin of the USB Type C plug.
  • the invention utilizes an ultra-low power consumption FPGA module independent of the terminal AP to convert the audio data format, thereby avoiding waking up the entire AP to start the USB driver during the call to convert the audio data format, thereby reducing power consumption and delay.
  • the embodiment of the invention uses the ultra-low power consumption FPGA module independent of the terminal AP to convert the audio data format, thereby avoiding waking up the entire AP to start the USB driver to convert the audio data format during the call, thereby reducing power consumption and delay.

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  • Physics & Mathematics (AREA)
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Abstract

本发明公开了一种USB Type C耳机的控制方法，包括：当利用所述USB Type C耳机进行通话时，通过现场可编程门阵列FPGA模块对USB数据和脉冲编码调制PCM数据进行转换后，进行语音通话；当利用所述USB Type C耳机进行音乐播放和/或录音时，通过所述FPGA模块对音频数据和USB数据进行转换，进行音乐播放和/或录音；其中，设置在终端上的所述FPGA模块独立于终端的应用处理器AP之外。本发明还公开了一种USB Type C耳机的控制装置及终端。本发明利用独立于终端AP的超低功耗的FPGA模块实现音频数据格式的转换，可以实现减小功耗和延时的目的；并且通过FPGA模块切换播放音乐、录音和通话的通道，无需使用切换通道的模拟开关，减小了听音乐时接听电话的切换延时，优化了用户体验。

Description

一种USB Type C耳机的控制方法、装置和终端 技术领域
本发明涉及音频设备技术领域，特别是涉及一种USB Type C耳机的控制方法、装置和终端。
背景技术
随着智能终端行业的发展，USB(Universal Serial Bus，通用串行总线)Type C接口应运而生。USB Type C接口具有支持正反插、传输速度快(最大数据传输速度能达到20Gbit/秒)、支持快速充电等优势。
目前，USB Type C耳机在市场上并不多见，而与其对应的手机侧的实现方案也各不相同。一种手机侧内部实现方案是：通过手机内部处理器中USB Driver(通用串行总线驱动器)来处理音频数据格式的转换，如图1所示，手机通话时的收发数据和播放音乐时的音频数据，都需要通过手机应用处理器AP(Application Processors)内部的USB Driver来路由。在接收手机通话下行语音数据时，USB Driver会接收由Modem(调制解调器)到ADSP(Audio Digital Signal Processing，音频数字信号处理器)输出的PCM数据，将其转换成USB数据，最后通过Type C接口输出。在发送手机通话上行语音数据时，USB Driver会转换USB数据为PCM数据给ADSP。在手机播放音乐时，USB Driver会接收AP内部音频数据，将其转换成USB数据，最后通过Type C接口输出不过，采用上述利用USB Driver来转换数据的方式实现通话，会造成原本通话过程中可以休眠的手机内部处理器AP被唤醒，这不仅增加了手机功耗，同时也大大增加了通话延时，最终导致通话延时达不到入网测试标准。
图2示出另外一种数模混合的Type C耳机对应的手机侧内部方案。该方案在耳机侧有两个通路连接到耳机喇叭，一路是模拟音频信号直接输出到喇叭(模拟通路)，另外一路采用了USB转I2S音频数据芯片和DAC(Digital to Analog Converter，数字模拟转换器)芯片的方案将模拟音频信 号输出到喇叭(数字通路)，最终是哪路音频信号进入耳机喇叭，在前端由开关选择。在手机侧，如果手机用来播放音乐，那图2中的开关会选择连通数字通路，如果手机是用来通话，那图2中开关会选择连通模拟通路，这种方案能解决通话延时达不到测试标准的问题。
不过，采用上述数模混合的方案，当用户用Type C耳机来听音乐时，手机正好有电话接入，语音数据就需要从数字通道转换到模拟通道，这个通道切换的过程会导致很大的延时，造成用户体验差。
发明内容
本发明要解决的技术问题是提供一种USB Type C耳机的控制方法、装置和终端，用以解决现有技术中利用USB Type C耳机进行通话功耗和延时大的问题。
为解决上述技术问题，本发明实施例提供一种USB Type C耳机的控制方法，包括：
当利用所述USB Type C耳机进行通话时，通过现场可编程门阵列FPGA模块对USB数据和脉冲编码调制PCM数据进行转换后，进行语音通话；
当利用所述USB Type C耳机进行音乐播放和/或录音时，通过所述FPGA模块对音频数据和USB数据进行转换，进行音乐播放和/或录音；
其中，设置在终端上的所述FPGA模块独立于终端的应用处理器AP之外。
可选地，当利用所述USB Type C耳机进行音乐播放和/或录音时，通过所述FPGA模块对音频数据和USB数据进行转换之前，还包括：
当所述AP处于工作状态时，通过所述AP中的USB驱动器对音频数据和USB数据进行转换，判断所述AP中的USB驱动器的性能参数和/或功耗参数是否满足预设的参数要求，如果是，则进行音乐播放和/或录音；如果否，则切换为通过所述FPGA模块对音频数据和USB数据进行转换， 进行音乐播放和/或录音。
可选地，利用所述USB Type C耳机进行通话时，将耳机侧的语音信息传输给对端包括：
接收所述耳机通过USB Type C接口传输给终端的USB数据，其中，所述USB数据由所述耳机通过其麦克风采集语音信息，并将所述语音信息转换成USB数据；
所述终端接收USB数据后，通过所述FPGA模块将所述USB数据转换为PCM数据；
所述终端通过射频天线将所述PCM数据发射出去，传输给对端。
可选地，所述终端通过射频天线将PCM数据发射出去的过程，包括：
终端上的音频数字信号处理器ADSP对所述PCM数据进行语音处理，并将处理后的PCM数据发送给终端上的调制解调器；
所述调制解调器对接收到的PCM数据进行调制得到语音信号，并将所述语音信号通过射频天线发射出去。
可选地，利用所述USB Type C耳机进行通话时，终端向耳机发送信息包括：
所述终端接收PCM数据；
所述终端通过所述FPGA模块将所述PCM数据转换为USB数据；
所述终端通过USB Type C接口将所述USB数据传输到耳机，由所述耳机播放所述USB数据。
可选地，所述终端接收PCM数据的过程，包括：
所述终端通过其射频天线接收调制的语音信号，并通过其调制解调器对所述语音信号进行解调，生成PCM数据；
所述终端上的ADSP对所述PCM数据进行语音处理，并将处理后的PCM数据发送给所述FPGA模块。
可选地，所述终端通过所述FPGA模块切换与所述USB Type C耳机在播放音乐、录音或通话的数据连接通道。
再一方面，本发明实施例还提供一种USB Type C耳机的控制装置，包括FPGA模块，所述FPGA模块独立于终端的应用处理器，设置为在所述终端与USB Type C耳机进行声音数据传输时，进行USB数据的转换，以及所述终端与所述USB Type C耳机在播放音乐、录音或通话的数据连接通道。
可选地，所述控制装置还包括：
调制解调器，设置为对PCM数据进行调制和解调；
音频数字信号处理器ADSP，分别与所述调制解调器和FPGA模块连接，设置为对PCM数据进行语音处理；
USB Type C接口，与所述FPGA模块连接，设置为终端与USB Type C耳机之间的USB数据的传输。
可选地，所述控制装置还包括USB驱动器，所述USB驱动器集成在终端的应用处理器中，设置为在终端的应用处理器处于工作状态时，对音频数据和USB数据进行转换。
再一方面，本发明实施例还提供一种终端，所述终端利用上述的USB Type C耳机的控制装置进行数据转换，实现通过USB Type C耳机播放音乐、录音或通话。
根据本发明的又一个实施例，还提供了一种存储介质。该存储介质设置为存储用于执行以下步骤的程序代码：
当利用所述USB Type C耳机进行通话时，通过现场可编程门阵列FPGA模块对USB数据和脉冲编码调制PCM数据进行转换后，进行语音通话；当利用所述USB Type C耳机进行音乐播放和/或录音时，通过所述FPGA模块对音频数据和USB数据进行转换，进行音乐播放和/或录音；其中，设置在终端上的所述FPGA模块独立于终端的应用处理器AP之外。
可选地，存储介质还设置为存储用于执行以下步骤的程序代码：
当利用所述USB Type C耳机进行音乐播放和/或录音时，通过所述FPGA模块对音频数据和USB数据进行转换之前，当所述AP处于工作状态时，通过所述AP中的USB驱动器对音频数据和USB数据进行转换，判断所述AP中的USB驱动器的性能参数和/或功耗参数是否满足预设的参数要求，如果是，则进行音乐播放和/或录音；如果否，则切换为通过所述FPGA模块对音频数据和USB数据进行转换，进行音乐播放和/或录音。
可选地，存储介质还设置为存储用于执行以下步骤的程序代码：
利用所述USB Type C耳机进行通话时，将耳机侧的语音信息传输给对端包括：接收所述耳机通过USB Type C接口传输给终端的USB数据，其中，所述USB数据由所述耳机通过其麦克风采集语音信息，并将所述语音信息转换成USB数据；所述终端接收USB数据后，通过所述FPGA模块将所述USB数据转换为PCM数据；所述终端通过射频天线将所述PCM数据发射出去，传输给对端。
可选地，存储介质还设置为存储用于执行以下步骤的程序代码：
所述终端通过射频天线将PCM数据发射出去的过程，包括：终端上的音频数字信号处理器ADSP对所述PCM数据进行语音处理，并将处理后的PCM数据发送给终端上的调制解调器；所述调制解调器对接收到的PCM数据进行调制得到语音信号，并将所述语音信号通过射频天线发射出去。
可选地，存储介质还设置为存储用于执行以下步骤的程序代码：
利用所述USB Type C耳机进行通话时，终端向耳机发送信息包括：所述终端接收PCM数据；所述终端通过所述FPGA模块将所述PCM数据转换为USB数据；所述终端通过USB Type C接口将所述USB数据传输到耳机，由所述耳机播放所述USB数据。
可选地，存储介质还设置为存储用于执行以下步骤的程序代码：
所述终端接收PCM数据的过程，包括：所述终端通过其射频天线接 收调制的语音信号，并通过其调制解调器对所述语音信号进行解调，生成PCM数据；所述终端上的ADSP对所述PCM数据进行语音处理，并将处理后的PCM数据发送给所述FPGA模块。
本发明实施例有益效果如下：
本发明实施例利用独立于终端AP的超低功耗的FPGA模块进行音频数据格式的转换，可以避免在通话时唤醒整个AP启动USB Driver进行音频数据格式的转换，从而实现减小功耗和延时的目的；并且通过FPGA模块切换播放音乐、录音和通话的通道，无需使用切换通道的模拟开关，减小了听音乐时接听电话的切换延时，优化了用户体验。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是现有技术的一种利用USB Type C耳机通过USB Driver转换数据格式的通话装置的结构图；
图2是现有技术的一种利用Type C耳机进行通话的装置的结构图；
图3是本发明实施例在上行通话时的一种USB Type C耳机的控制方法的流程图；
图4是本发明实施例在下行通话时的一种USB Type C耳机的控制方法的流程图；
图5是本发明实施例的一种USB Type C耳机的控制装置的结构图；
图6是本发明实施例的一种通过FPGA模块转换数据的通话系统的结构图。
具体实施方式
为了解决现有技术中利用USB Type C耳机进行通话功耗和延时大的问题，本发明提供了一种USB Type C耳机的控制方法、装置和终端，以下结合附图以及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不限定本发明。
实施例1
本发明实施例的一种USB Type C耳机的控制方法，在终端与USB Type C耳机进行声音数据传输时，通过FPGA模块进行音频数据格式的转换；FPGA模块独立于终端AP。根据实际应用，USB Type C耳机需要应用到三种场景：播放音乐、录音和通话。本实施例中，可以通过FPGA模块切换播放音乐、录音和通话的通道，这样可以节省切换通话和播放音乐、录音通道时所用的开关，节省器件的同时还可以避免开关的性能影响音质，优化用户体验。在通话过程中，通过FPGA模块对PCM(Pulse-code modulation，脉冲编码调制)数据和USB数据进行转换。而在播放音乐和/或录音时，由于对传输延时的要求不高，而且终端AP本身也处于工作状态，因此可以通过集成在终端AP中的USB Driver对音频数据和USB数据进行转换。但是，当USB Driver性能和功耗都不能满足设计要求时，可以通过FPGA模块对音频数据和USB数据进行转换，这样有利于实时提高数据的质量，提升播放音乐的各项指标。
实施例2
终端以手机为例，一种通过FPGA模块转换数据的通话系统的结构如图6所示。采用图6所示的系统时，本发明实施例在上行通话时的一种USB Type C耳机的控制方法如图3所示，首先耳机通过MIC(麦克风) 采集语音信息，并将语音信息转换成USB数据；然后耳机通过USB Type C接口将USB数据传输到终端。终端接收到USB数据后，通过FPGA模块将USB数据转换为PCM数据；最后终端通过射频天线将PCM数据发射出去。参照图3，本实施例包括以下步骤：
步骤s301，耳机通过MIC采集语音信息。
步骤s302，将语音信息进行模数转换，生成I2S数据信号。本实施例中，由ADC(Analog-to-Digital Converter，模拟-数字转换器)芯片进行模数转换成I2S数据信号。需要说明的是，某些型号的USB Type C耳机的USB Controller内部集成ADC的功能，由MIC采集语音信号后直接输入USB Controller，不再需要ADC芯片；此外，也有集成了ADC芯片的MIC，在此处也不需要再加ADC芯片。
步骤s303，通过USB Controller(USB控制器)接收I2S数据信号，并将I2S数据信号转换成USB数据。本实施例中，耳机侧USB Controller接收语音I2S数据信号，并转换成USB数据，通过图6中DP和DN来传输给手机侧DP和DN。
步骤s304，耳机通过USB Type C接口将USB数据传输到终端。
步骤s305，终端接收USB数据，并通过FPGA模块将USB数据转换为PCM数据。本实施例中，手机侧接收USB语音数据信号，并由FPGA模块通过硬解码和编码的形式实现USB到PCM数据的转换。需要说明的是：当USB Type C耳机处于播放和录音场景中时，FPGA模块使USB Type C插座的DP和DN信号只和手机AP中USB Driver接通，当USB Type C耳机处于语音通话场景中时，FPGA模块使USB Type C插座的DP和DN信号只和FPGA模块数据转换接口接通。
步骤s306，ADSP对PCM数据进行语音处理，并将处理后的PCM数 据发送给Modem(调制解调器)。本实施例中，手机侧ADSP接收到FPGA的PCM数据，并实现语音处理，比如回声消除和降噪处理，输出PCM码流数据给Modem。
步骤s307，Modem对接收到的PCM数据进行调制，并将调制好的语音信号通过射频天线发射出去。本实施例中，手机侧Modem接收来自ADSP的PCM语音数据，通过调制解调等处理，将调制好的信号通过射频天线发射出去，由此完成上行语音信号的传输。
实施例3
终端以手机为例，本发明实施例在下行通话时的一种USB Type C耳机的控制方法如图4所示，首先终端接收PCM数据；然后所述终端通过FPGA模块将所述PCM数据转换为USB数据，并通过USB Type C接口将所述USB数据传输到耳机；最后所述耳机播放所述USB数据。参照图4，本实施例包括以下步骤：
步骤s401，终端通过射频天线接收调制的语音信号，并通过Modem对语音信号进行解调，生成PCM数据。本实施例中，生成的PCM数据给ADSP。
步骤s402，ADSP对PCM数据进行语音处理，并将处理后的PCM数据发送给FPGA模块。本实施例中，ADSP接收到Modem的PCM数据后，进行回声处理和降噪等语音处理，输出PCM数据给FPGA模块。
步骤s403，终端通过FPGA模块将PCM数据转换为USB数据。本实施例中，FPGA模块接收到PCM数据后，进行数据格式转换，将PCM数据转换成USB数据，并传输给USB Type C接口，本实施例中为USB Type C耳机插座。
步骤s404，终端通过USB Type C接口将USB数据传输到耳机。
步骤s405，耳机接收USB数据，并通过USB控制器将USB数据转换为I2S数据信号。
步骤s406，将I2S数据信号进行数模转换，生成语音信息。
步骤s407，耳机通过喇叭播放语音信息，由此完成语音通话下行传输。
实施例4
本发明实施例的一种USB Type C耳机的控制装置如图5所示，包括Modem、ADSP、FPGA模块、USB Type C接口和USB Driver，其中USB Driver集成在手机AP中，Modem与ADSP连接，FPGA模块分别与ADSP、USB Type C接口和USB Driver连接。
Modem用于对PCM数据进行调制和解调；ADSP用于对PCM数据进行语音处理；FPGA模块独立于终端的应用处理器，设置为在终端与USB Type C耳机进行声音数据传输时，进行USB数据的转换和切换播放音乐、录音和通话的通道；USB Type C接口设置为终端与USB Type C耳机之间的USB数据的传输；USB Driver设置为对音频数据和USB数据进行转换。
其中，上述的AP、ADSP、Modem和USB Driver都集成于手机平台芯片中，只是ADSP属于音频子系统，modem属于调制解调模块，相对AP和USB Driver来说，是相对独立的模块。上述超低功耗FPGA芯片和USB Type C接口属于独立器件。
本实施例中，在上行通话时，FPGA模块会断开USB Driver和USB Type C接口的连接，使上行USB语音数据通过USB Type C接口进入FPGA模块，并把上行USB语音数据转换Slimbus/I2S数据，输出到ADSP中进行回声处理或消噪处理，再经过Modem调制信号，将语音信息发送出去。 由于下行和上行通话场景数据流通道一样，此处不再赘述。
以使用USB Type C耳机的手机为例，本实施例的一种通过FPGA模块转换数据的通话系统的结构如图6所示。其中，在USB Type C耳机侧，需要手机侧提供VBUS(5V)电源，经过DCDC(直流-直流转换器)或LDO(Low Dropout regulator，低压差线性稳压器)芯片进行电源转换，提供USB Controller和其他芯片的电能。而如果需要手机提供VBUS电源，通过Type C协议，则需要在USB Type C插头处的CC1管脚接5.1k电阻到地。
本发明利用独立于终端AP的超低功耗的FPGA模块进行音频数据格式的转换，可以避免在通话时唤醒整个AP启动USB Driver，来进行音频数据格式的转换，从而实现减小功耗和延时的目的；并且通过FPGA模块切换播放音乐、录音和通话的通道，无需使用切换通道的模拟开关，减小了听音乐时接听电话的切换延时，优化了用户体验。
尽管为示例目的，已经公开了本发明的优选实施例，本领域的技术人员将意识到各种改进、增加和取代也是可能的，因此，本发明的范围应当不限于上述实施例。
工业实用性
本发明实施例利用独立于终端AP的超低功耗的FPGA模块进行音频数据格式的转换，可以避免在通话时唤醒整个AP启动USB Driver进行音频数据格式的转换，从而实现减小功耗和延时的目的；并且通过FPGA模块切换播放音乐、录音和通话的通道，无需使用切换通道的模拟开关，减小了听音乐时接听电话的切换延时，优化了用户体验。

Claims (12)

  1. 一种USB Type C耳机的控制方法，包括：
    当利用所述USB Type C耳机进行通话时，通过现场可编程门阵列FPGA模块对USB数据和脉冲编码调制PCM数据进行转换后，进行语音通话；
    当利用所述USB Type C耳机进行音乐播放和/或录音时，通过所述FPGA模块对音频数据和USB数据进行转换，进行音乐播放和/或录音；
    其中，设置在终端上的所述FPGA模块独立于终端的应用处理器AP之外。
  2. 如权利要求1所述的USB Type C耳机的控制方法，其中，当利用所述USB Type C耳机进行音乐播放和/或录音时，通过所述FPGA模块对音频数据和USB数据进行转换之前，还包括：
    当所述AP处于工作状态时，通过所述AP中的USB驱动器对音频数据和USB数据进行转换，判断所述AP中的USB驱动器的性能参数和/或功耗参数是否满足预设的参数要求，如果是，则进行音乐播放和/或录音；如果否，则切换为通过所述FPGA模块对音频数据和USB数据进行转换，进行音乐播放和/或录音。
  3. 如权利要求1所述的USB Type C耳机的控制方法，其中，利用所述USB Type C耳机进行通话时，将耳机侧的语音信息传输给对端包括：
    接收所述耳机通过USB Type C接口传输给终端的USB数据，其中，所述USB数据由所述耳机通过其麦克风采集语音信息，并将所述语音信息转换成USB数据；
    所述终端接收USB数据后，通过所述FPGA模块将所述USB数据转换为PCM数据；
    所述终端通过射频天线将所述PCM数据发射出去，传输给对端。
  4. 如权利要求3所述的USB Type C耳机的控制方法，其中，所述终端通过射频天线将PCM数据发射出去的过程，包括：
    终端上的音频数字信号处理器ADSP对所述PCM数据进行语音处理，并将处理后的PCM数据发送给终端上的调制解调器；
    所述调制解调器对接收到的PCM数据进行调制得到语音信号，并将所述语音信号通过射频天线发射出去。
  5. 如权利要求1所述的USB Type C耳机的控制方法，其中，利用所述USB Type C耳机进行通话时，终端向耳机发送信息包括：
    所述终端接收PCM数据；
    所述终端通过所述FPGA模块将所述PCM数据转换为USB数据；
    所述终端通过USB Type C接口将所述USB数据传输到耳机，由所述耳机播放所述USB数据。
  6. 如权利要求5所述的USB Type C耳机的控制方法，其中，所述终端接收PCM数据的过程，包括：
    所述终端通过其射频天线接收调制的语音信号，并通过其调制解调器对所述语音信号进行解调，生成PCM数据；
    所述终端上的ADSP对所述PCM数据进行语音处理，并将处理后的PCM数据发送给所述FPGA模块。
  7. 如权利要求1至6任一项所述的USB Type C耳机的控制方法， 其中，所述终端通过所述FPGA模块切换与所述USB Type C耳机在播放音乐、录音或通话的数据连接通道。
  8. 一种USB Type C耳机的控制装置，包括FPGA模块，所述FPGA模块独立于终端的应用处理器，设置为在所述终端与USB Type C耳机进行声音数据传输时，进行USB数据的转换，以及所述终端与所述USB Type C耳机在播放音乐、录音或通话的数据连接通道。
  9. 如权利要求8所述的USB Type C耳机的控制装置，其中，所述控制装置还包括：
    调制解调器，设置为对PCM数据进行调制和解调；
    音频数字信号处理器ADSP，分别与所述调制解调器和FPGA模块连接，设置为对PCM数据进行语音处理；
    USB Type C接口，与所述FPGA模块连接，设置为终端与USB Type C耳机之间的USB数据的传输。
  10. 如权利要求8所述的USB Type C耳机的控制装置，其中，所述控制装置还包括USB驱动器，所述USB驱动器集成在终端的应用处理器中，设置为在终端的应用处理器处于工作状态时，对音频数据和USB数据进行转换。
  11. 一种终端，所述终端利用权利要求8～10任一项所述的USB Type C耳机的控制装置进行数据转换，实现通过USB Type C耳机播放音乐、录音或通话。
  12. 一种存储介质，其特征在于，所述存储介质包括存储的程序，其中，所述程序运行时执行权利要求1至7中任一项所述的方法。
PCT/CN2017/096464 2016-11-18 2017-08-08 一种USB Type C耳机的控制方法、装置和终端 WO2018090680A1 (zh)

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