WO2013166967A1 - Method for playing high-fidelity music through mobile terminal and mobile terminal thereof - Google Patents

Description

 Method for playing high fidelity music through home terminal and mobile terminal thereof

[Technical Field]

 The present invention relates to a mobile terminal, and more particularly to a method of playing high fidelity music through a mobile terminal and a mobile terminal thereof.

【Background technique】

 In real life, music often plays an important role in people's lives. Usually music enthusiasts hope to restore the music they hear to the original music. In life, high-fidelity (HIFI) devices such as music and fever devices, CDs, preamps, amplifiers, speakers, and line-ups are usually played in a wide enough venue, but in this implementation, due to the above-mentioned high fidelity The cost of the equipment is high enough to satisfy ordinary music enthusiasts.

 Therefore, in order to achieve high-fidelity sound, ordinary enthusiasts can choose a high-fidelity amp system, such as high-fidelity headphones, and enjoy high-fidelity music by wearing high-fidelity headphones.

 However, the high-fidelity amp system on the market requires an external power supply, which is bulky and cannot be carried around.

[Summary of the Invention]

The technical problem to be solved by the present invention is to provide a mobile terminal that plays high fidelity music and a method of playing high fidelity music through the mobile terminal. The object of the present invention is achieved by the following technical solutions: A mobile terminal that plays high-fidelity music, the mobile terminal is respectively connected with a computer and a high-fidelity earphone, and the mobile terminal includes: a processor, a USB interface switch , USB Audio Decoder, Digital Audio Bus Switcher, Audio Digital to Analog Converter, Operational Placer The USB interface switch is configured to switch the received music signal of the computer to the USB audio decoder under the control of the processor; the USB audio decoder is used to a music signal transmitted by the USB audio decoder is decoded by the processor to be decoded into a digital audio signal, and the digital audio signal is transmitted to the digital audio bus switch; the digital audio a bus switch for transmitting the digital audio signal to the audio digital-to-analog converter under control of the processor; the audio digital-to-analog converter for controlling a digital audio signal under control of the processor Converting to an analog audio signal and transmitting to the operational amplifier; the operational amplifier is configured to amplify the converted analog audio signal under the control of the processor, and transmit the amplified analog audio signal To the earphone driver; the earphone driver is configured to drive a high fidelity earphone connected to the mobile device, and the amplified simulation An audio signal is transmitted to the high fidelity earphone to play high fidelity music through the high fidelity earphone. The above-mentioned mobile terminal for playing high-fidelity music, wherein: the method further includes: a USB interface, configured to establish a communication connection between the mobile terminal and the computer; and a memory, configured to store a usage type of the USB interface set by the user, The type of use of the USB interface includes a music play mode.

 The mobile terminal playing the high-fidelity music, wherein: the USB interface switch is further configured to: when detecting that the mobile device is in communication connection with the computer through the USB interface, send a connection notification signal to the processing by using a control bus Device.

The mobile terminal playing the high-fidelity music, wherein: the processor is further configured to: when the connection notification signal sent by the USB interface switch is received, query the storage The type of use of the USB interface stored in the device to determine whether the mobile terminal is a play terminal for high fidelity music.

 The mobile terminal for playing high-fidelity music, wherein: the processor is further configured to: when querying the usage type of the USB interface stored in the memory is a music playing mode, determine the mobile terminal as a playing terminal of high fidelity music The USB interface switch is further configured to: when the processor determines that the mobile terminal is a play terminal of high fidelity music, under the control of the processor, the music of the computer received through the USB interface Signal switching is transmitted to the USB audio decoder.

 The mobile terminal for playing high-fidelity music, wherein: the method further includes: a headset interface, configured to establish a communication connection between the mobile terminal and the high-fidelity earphone;

 The earphone driver is further configured to further amplify the analog audio signal amplified by the operational amplifier, and transmit the amplified analog audio signal to the high fidelity earphone through the ear*1 interface to pass the high fidelity Headphones play high fidelity music.

 A method for playing high-fidelity music through a mobile terminal, the method comprising: the mobile terminal is respectively connected to a computer and a high-fidelity earphone, the method comprising: decoding a music signal of the received computer to decode into Digital audio signal; converting the digital audio signal into an analog audio signal; amplifying the converted analog audio signal; driving a high-fidelity earphone connected to the mobile device, transmitting the amplified analog audio signal To the high fidelity earphone to play high fidelity music through the high fidelity earphone.

The method for playing high-fidelity music through a mobile terminal, wherein: the method further comprises: querying the storage when the mobile device detects a communication connection with a computer through a USB interface The type of use of the USB interface stored in the device to determine whether the mobile terminal is a play terminal for high fidelity music. The method for playing high-fidelity music through a mobile terminal, wherein: the method further comprises: determining that the mobile terminal is a play terminal of high-fidelity music if the usage type of the stored USB interface is a music playing mode; The music signal of the computer received by the interface is decoded to be decoded into a digital audio signal. The method for expanding high fidelity music through a mobile terminal, wherein: the method further comprises: further amplifying the amplified analog audio signal, and transmitting the further amplified analog audio signal to the fan through the earphone interface High-fidelity headphones to play high-fidelity music through the hi-fi headphones.

 According to the technical solution provided by the embodiment of the present invention, a USB interface switch, a USB audio decoder, and a digital audio bus switch are integrated into the mobile terminal, and when the user sets the mobile terminal to the music terminal mode, the mobile terminal can directly pass the mobile terminal. The terminal listens to high-fidelity music from the computer, and compared with the prior art, the user does not need to carry an external power supply, thereby improving the user's body writing.

[Annex description]

 For ease of description, the present invention is described in detail by the following preferred embodiments and the accompanying drawings. FIG. 1 is a diagram showing an application environment of a mobile terminal for providing high-fidelity music for the present invention.

The present invention shown in Fig. 2 is a structural diagram of a mobile terminal for expanding high fidelity music. The present invention shown in FIG. 3 is a method for playing high fidelity music through a mobile terminal. Flow chart.

【detailed description】

 FIG. 1 is a diagram of an application environment of a mobile terminal for playing high fidelity music provided by the present invention.

 In the present embodiment, the mobile terminal 1 is connected to the computer 2 (PC) via USB communication, and at the same time, the mobile terminal is connected to the high-fidelity earphone 3 via USB communication.

 In this embodiment, when the user needs to listen to high-fidelity music through the high-fidelity earphone 3, the user can set the mobile terminal 1 as a music terminal. At this time, the mobile terminal 1 communicates with the computer 2 through the USB. At this time, the mobile device 1 can perform high-fidelity sound processing on the music signal output by the computer 2, and output the processed music signal to the high-fidelity earphone 3 for expansion, thereby enabling the user to hear high-fidelity music.

 In this embodiment, the mobile terminal 1 can be a mobile phone or a tablet computer.

 FIG. 2 is a structural diagram of a mobile terminal for playing high fidelity music provided by the present invention. In this embodiment, the mobile device comprises a processor 20, a power manager 21, a memory 22, a USB interface switch 23, a USB audio decoder 24, a digital audio bus switch 25, an audio digital-to-analog converter 26, an operational amplifier. 27, headphone jack 28, USB interface 29, headphone driver 30.

In this embodiment, the power manager 21 is respectively a processor 20, a memory 22, a USB interface switch 23, a USB audio decoder 24, a digital audio bus switch 25, an audio digital-to-analog converter 26, an operational amplifier 27, and a headphone interface. 28, USB interface 29, headphone driver 30 communication connection, for processor 20, memory 2.2, USB interface switching The device 23, the USB audio decoder 24, the digital audio bus switch 25, the audio digital-to-analog converter 26, the operational amplifier 27, the headphone jack 28, the USB interface 29, and the headphone driver 30 4 are power supplies. In the present embodiment, the power manager 21 can be powered by a battery.

 In this embodiment, the processor 20 may be a central processing unit, an audio processor, and a signal processor.

 In this embodiment, the mobile device communicates with the computer via the USB interface 29 and receives the music signal of the computer through the USB interface 29.

 The USB interface switch 23 is communicably connected to the USB interface 29, the processor 20, and the USB audio decoder 24, respectively, for transmitting a USB connection notification signal through the I2C control bus when detecting that the mobile device is in communication connection with the computer through the USB interface 29. Processor 20.

 In the present embodiment, the USB interface switch 23 is communicably connected to the USB interface 29 and the USB audio decoder 24 via a USB data bus, and is communicably connected to the processor 20 via an I2C control bus or a USB data bus. In this embodiment, the USB interface switch 23 is used to switch the music signal of the computer received by the USB interface 29 between the processor 20 and the USB audio decoder 24, which can be understood as being received by the USB interface 29. The music signal of the computer is transmitted to the processor 20, or the music signal of the computer received by the USB interface 29 is transmitted to the USB audio decoder 24.

 The processor 20 is communicatively coupled to the memory 22 via a data bus and communicatively coupled to the USB audio decoder 24 via the SPI control bus for querying the memory stored in the memory 22 when receiving the USB connection notification signal transmitted by the USB interface switch 23. The type of use of the USB interface 29 is to determine whether the mobile terminal is a play terminal for high fidelity music.

In this embodiment, if the user needs to play the mobile terminal as high fidelity music In the terminal, the usage type of the USB interface 29 of the mobile terminal is set to the music playback mode and stored in the memory 22.

 When the usage type of the USB interface 29 is queried to the music play mode, the USB audio decoder 24 is activated through the SPI control bus, and at the same time, the USB interface switch 23 is controlled to input the music signal of the computer received by the USB interface 29 to the USB audio decoding. The second audio decoder 24 is communicatively coupled to the audio digital to analog converter 25 via an I2S audio data bus.

 In the present embodiment, the processor 20 is also used to initialize the USB audio decoder 24. In the present embodiment, the USB audio decoder 24 decodes the music signal of the computer received by the USB interface 29 at the initialization of the processor 20 to decode into an I2S digital audio signal.

 The processor 20 is also operative to control the USB audio decoder 24 to transmit the decoded I2S digital audio signal to the digital audio bus switch 25, while activating and initializing the digital audio bus switch 25.

 The digital audio bus switch 25 is communicably connected to the processor 20 through the control line and the I2S audio data, and is communicably connected to the USB audio decoder 24 and the frequency t-mode converter 26 through the I2S audio data bus, respectively, for processing. The I2S digital audio signal output from the device 20 and the USB audio decoder 24 is switched to the audio digital-to-analog converter 26. It can be understood that the I2S digital audio signal output by the processor is output to the audio t-mode converter 26, or the I2S digital audio signal output from the USB audio decoder 24 is output to the audio digital-to-analog converter 26.

The digital audio bus switch 25 is also used to control the USB sound under the control of the processor 20. The I 2 S digital audio signal output from the frequency decoder 24 is output to the audio digital-to-analog converter 26. In this embodiment, the processor 20 initializes the frequency-to-digital converter through the I2C control bus.

26.

 At this time, the audio digital-to-analog converter 26 is configured to convert the I2S digital audio signal into an analog audio signal under the control of the processor 20, and output the converted analog audio signal to the operational amplifier under the control of the processor 20. 27.

 In the present embodiment, the processor 20 is also operative to initiate and initialize the operational amplifier 27 and the headphone driver 30 via a control line.

 The operational amplifier 27 is configured to perform primary amplification of the analog audio signal converted by the audio digital-to-analog converter 26 under the control of the processor 20, and transmit the first-time amplified analog audio signal to the earphone under the control of the processor 20. Drive 30.

 The headphone driver 30 is configured to re-amplify the primary amplified analog audio signal outputted by the operational amplifier 27 under the control of the processor 20, and drive the high-fidelity earphone communicably connected through the earphone interface 28, and simultaneously pass the analog audio signal through the ear. * The port 28 output to the high fidelity headphones. At this point, users can listen to high-fidelity music through high-fidelity headphones.

 According to the technical solution provided by the embodiment of the present invention, a USB interface switch, a USB audio decoder, and a digital audio bus switch are integrated into the mobile terminal, and when the user sets the mobile terminal to the music terminal mode, the mobile terminal can directly pass the mobile terminal. The terminal listens to high-fidelity music from the computer, and the user does not need to carry an external power source compared with the prior art, thereby improving the user experience.

FIG. 3 is a flowchart of a method for playing high fidelity music through a mobile terminal according to the present invention. In this embodiment, when the user needs to play high-fidelity music through the mobile terminal, the mobile terminal needs to be connected to the computer through the USB, and at the same time, the mobile terminal and the high-fidelity earphone are connected through the USB.

 Step S300, when detecting that the mobile device USB is in communication connection with the computer, querying the stored usage type of the USB interface.

 Step S301: Determine, by the type of use of the USB interface, whether the mobile terminal is a play terminal of high fidelity music. In this embodiment, if the user needs to use the mobile terminal as a playback terminal for high-fidelity music, the usage type of the USB interface of the mobile terminal is set to the music broadcast mode, and is stored in the memory. In this embodiment, when the usage type of the USB interface of the inquiring mobile terminal is set to the music playing mode, the mobile terminal is determined as the playing terminal of the high fidelity music, and step S302 is performed; when the USB interface of the inquiring mobile terminal is When the usage type is set to the non-music playback mode, it is judged that the mobile terminal is not playing as the playback terminal of the high-fidelity music, and step S303 is executed, and the high-fidelity music playback is not performed.

 Step S302: Decode the music signal of the computer received by the USB interface to decode the I2S digital audio signal.

 Step S304, converting the I2S digital audio signal into an analog audio signal.

 Step S305, performing primary amplification on the converted analog audio signal.

 Step S306, the primary amplified analog-pull audio signal is amplified again.

Step S307, driving a high-fidelity earphone connected to the mobile terminal, and outputting the amplified analog audio signal to the high-fidelity earphone to play high-fidelity music through the high-fidelity earphone. At this point, users can listen to high-fidelity music through high-fidelity headphones.

 According to the technical solution provided by the embodiment of the present invention, when the user sets the mobile terminal to the music terminal mode, the mobile terminal decodes the music signal of the computer received by the USB interface into an I2S digital audio signal, and performs digital-to-analog conversion and signal amplification. Drive high-fidelity headphones, so that you can listen to high-fidelity music directly from the computer through the mobile terminal. Compared with the prior art, the user does not need to carry an external power supply, thereby improving the user experience.

The specific embodiments described above are preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. The scope of the present invention is not limited to the specific embodiments. Equivalent variations made in accordance with the shapes and structures of the present invention are within the scope of the present invention.

Claims

Rights request  A mobile terminal for playing high-fidelity music, wherein the mobile terminal is respectively connected to a computer and a high-fidelity earphone, and the mobile terminal comprises: a processor, USB interface switcher, USB audio decoder, digital audio bus switcher, audio digital-to-analog converter, operational amplifier, headphone driver;  The USB interface switch is configured to switch the music signal of the received computer to the USB audio decoder under the control of the processor;  The USB audio decoder is configured to, under the control of the processor, decode a music signal transmitted by the USB audio decoder to decode into a digital audio signal, and transmit the digital audio signal to the digital audio Bus switcher  The digital audio bus switch is configured to transmit the digital audio signal to the audio fc mode converter under control of the processor;  The audio digital-to-analog converter is configured to convert a digital audio signal into an analog audio signal under control of the processor and transmit to the operational amplifier;  The operational amplifier is configured to amplify the converted analog audio signal under the control of the processor, and transmit the amplified analog audio signal to the earphone driver; the earphone driver is used for driving and fascinating The high-fidelity earphone connected to the mobile device transmits the amplified analog audio signal to the high-fidelity earphone to play high-fidelity music through the high-fidelity earphone. 2. The mobile terminal for playing high fidelity music according to claim 1, further comprising: a USB interface, configured to establish communication between the mobile terminal and the computer Connection  The memory is configured to store a usage type of the USB interface set by a user, and the usage type of the USB interface includes a music expansion mode.  3. The mobile terminal for playing high fidelity music according to claim 2, wherein: the USB interface switch is further configured to: when detecting that the mobile device is in communication connection with a computer through the USB interface, The bus sends a connection notification signal to the processor.  4. The mobile terminal for playing high fidelity music according to claim 3, wherein the processor is further configured to query the storage in the memory when receiving the connection notification signal sent by the USB interface switcher. The type of use of the USB interface to determine whether the mobile terminal is a play terminal for high fidelity music.  5. The mobile terminal for playing high fidelity music according to claim 4, wherein:  The processor is further configured to: when the usage type of the USB interface stored in the memory is queried as a music play mode, determine the mobile terminal as a play terminal of high fidelity music;  The USB interface switch is further configured to: when the processor determines that the mobile terminal is a play terminal of high fidelity music, under the control of the processor, the music signal of the computer received through the USB interface Switching to the USB audio decoder. 6. The mobile terminal for playing high fidelity music according to claim 1, further comprising: a headphone interface, configured to establish the mobile terminal and the high fidelity earphone Communication connection  The earphone driver is further configured to further amplify the amplified analog audio signal of the operational amplifier, and transmit the amplified analog audio signal to the high fidelity earphone through the earphone interface to pass the high fidelity earphone High fidelity music.  7. A method for playing high fidelity music through a mobile terminal, wherein the mobile terminal is in communication with a computer and a high fidelity headset, the method comprising:  Decoding the received music signal of the computer to be decoded into a digital audio signal; converting the digital audio signal into an analog audio signal;  Amplifying the converted analog audio signal;  A high fidelity earphone connected to the mobile device is driven to transmit the amplified analog audio signal to the high fidelity earphone to play high fidelity music through the high fidelity earphone.  8. The method for playing high fidelity music through a mobile terminal according to claim 7, further comprising:  When detecting that the mobile device is in communication connection with the computer through the USB interface, querying the usage type of the USB interface stored in the memory to determine whether the mobile terminal is a play terminal for high fidelity music.  The method for playing high-fidelity music through a mobile terminal according to claim 8, further comprising: If the usage type of the stored USB interface is the music release mode, determining that the mobile terminal is used as a play terminal for high fidelity music; The music signal of the computer received through the USB interface is decoded to be decoded into a digital audio signal.  10. The method of playing high fidelity music through a mobile terminal according to claim 7, further comprising:  The amplified analog audio signal is further amplified, and the further amplified analog audio signal is transmitted to the high fidelity earphone through the headphone jack to play high fidelity music through the high fidelity earphone.