CN211957126U

CN211957126U - Audio conversion circuit with recording function and audio conversion device

Info

Publication number: CN211957126U
Application number: CN201990000221.5U
Authority: CN
Inventors: 廖卓文
Original assignee: Guangdong Gopod Group Holding Co Ltd
Current assignee: Guangdong Gopod Group Holding Co Ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-11-17
Anticipated expiration: 2029-11-21
Also published as: WO2021097766A1

Abstract

The application discloses audio frequency converting circuit with recording function and audio frequency conversion device with recording function, this audio frequency converting circuit (10) include: the device comprises a switch control component (101), an audio control component (102), an audio acquisition component (103), an audio receiving component (104) and an audio conversion component (105); the switch control component (101) generates a switch signal; the audio control component (102) generates a control signal according to the switching signal; the audio acquisition component (103) acquires voice information of a preset area according to the control signal, or the audio receiving component (104) acquires a first voice signal stored by the audio storage device (30) according to the control signal; the audio conversion component (105) stores or transmits the voice information or the first voice signal of the preset area; the audio conversion circuit (10) compatibly realizes a recording function and a voice signal reading function.

Description

Audio conversion circuit with recording function and audio conversion device

Technical Field

The application relates to the technical field of electronics, concretely relates to audio frequency converting circuit with recording function and audio frequency conversion device with recording function.

Background

With the rapid development of electronic technology, audio equipment has been popularized in various life fields of people, people realize remote voice playing and information transmission through the audio equipment, great convenience is brought to the life of people, although the audio equipment can guarantee the interactive transmission of human voice, the audio equipment in the related technology can only transmit the original voice information of a user, cannot record and retain the voice information in the external environment, and is difficult to generally apply; therefore, the audio equipment in the related art has single function, corresponding voice content which is difficult to keep in real time, and the compatibility and the practical value are lower.

SUMMERY OF THE UTILITY MODEL

One of the purposes of the embodiment of the application is as follows: the utility model provides an audio frequency converting circuit with recording function and audio frequency conversion equipment with recording function aims at solving audio equipment among the correlation technique and can't keep the speech information among the external environment, and the function is single, and compatible and practical value are lower problem.

In order to solve the technical problem, the embodiment of the application adopts the following technical scheme:

in a first aspect, an audio conversion circuit with a recording function is provided, and is connected to a mobile terminal, where the audio conversion circuit includes:

a switch control component configured to generate a first switch signal or a second switch signal according to the first key signal;

the audio control component is connected with the switch control component and is configured to generate a first control signal according to the first switch signal or generate a second control signal according to the second switch signal;

the audio acquisition component is connected with the audio control component and is configured to acquire voice information of a preset area according to the first control signal and generate a first audio signal;

the audio receiving component is connected with the audio control component and the audio storage device and is configured to acquire the first voice signal stored in the audio storage device according to the second control signal; and

the mobile terminal is connected with the audio control assembly and the mobile terminal, and is configured to receive the first audio signal transmitted by the audio control assembly, perform format conversion on the first audio signal to obtain a second audio signal, and output the second audio signal to the mobile terminal or store the second audio signal; or the audio conversion component is configured to receive a first voice signal transmitted by the audio control component, perform format conversion on the first voice signal to obtain a second voice signal, and output the second voice signal to the mobile terminal or store the second voice signal.

In a second aspect, an audio conversion apparatus having a recording function is provided, including:

the audio conversion circuit as described above; and

and the shell is used for packaging and protecting the audio conversion circuit.

The audio frequency converting circuit with the recording function provided by the embodiment of the application has the beneficial effects that: the audio control function can be flexibly realized through the switch control assembly, the audio acquisition assembly acquires the voice information in the external environment in real time, or the audio receiving assembly can acquire the voice information pre-stored by the audio storage device so as to meet the multifunctional audio control requirement of a user; the audio conversion component can realize the storage function of audio data and can upload the audio data to the mobile terminal so as to completely store the audio data; therefore, the audio conversion circuit not only can carry out compatible transmission and conversion on audio data, but also can realize the recording function, has complete functions and higher compatibility and practical value, and can meet the multi-aspect audio control requirements of users.

The audio frequency conversion device with the recording function provided by the embodiment of the application has the beneficial effects that: can realize recording function and speech information through audio frequency converting circuit and read the function, applicable in the industry technical field of each difference to can ensure audio frequency converting circuit's physical safety through the shell, audio frequency converting device has higher audio frequency to speech information and handles security and reliability, and practical value is higher.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or exemplary technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an audio conversion circuit with a recording function according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of an audio conversion assembly according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a signal storage unit according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of an audio conversion assembly according to another embodiment of the present application;

FIG. 5 is a schematic diagram of a power supply component according to an embodiment of the present disclosure;

fig. 6 is a schematic circuit diagram of a voltage regulator according to an embodiment of the present application;

fig. 7 is a schematic circuit diagram of a signal conversion component according to an embodiment of the present application;

fig. 8 is a schematic circuit diagram of an audio output component according to an embodiment of the present application;

FIG. 9 is a schematic circuit diagram of a data memory according to an embodiment of the present application;

fig. 10 is a schematic circuit diagram of a data transmitter according to an embodiment of the present application;

FIG. 11 is a schematic structural diagram of a switch control assembly according to an embodiment of the present disclosure;

fig. 12 is a schematic circuit diagram of a signal selection unit according to an embodiment of the present application;

fig. 13 is a schematic circuit diagram of a signal switching unit according to an embodiment of the present application;

FIG. 14 is a schematic structural diagram of an audio control assembly according to an embodiment of the present application;

fig. 15 is a schematic circuit diagram of a reset device according to an embodiment of the present application;

fig. 16 is a schematic circuit diagram of a crystal oscillator component according to an embodiment of the present application;

FIG. 17 is a schematic diagram of a circuit configuration of a switch enable component according to an embodiment of the present application;

FIG. 18 is a schematic circuit diagram of a data storage device according to an embodiment of the present application;

fig. 19 is a schematic structural diagram of an audio conversion apparatus with a recording function according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the present application.

It should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.

In order to explain the technical solutions of the present application, the following detailed descriptions are made with reference to specific drawings and examples.

Fig. 1 shows a schematic structure of an audio conversion circuit 10 with a recording function according to an embodiment of the present application, please refer to fig. 1, where the audio conversion circuit 10 is connected to a mobile terminal 20, and compatible communication can be implemented between the audio conversion circuit 10 and the mobile terminal 20, so as to improve a practical value of the audio conversion circuit 10.

The audio conversion circuit 10 includes: a switch control component 101, an audio control component 102, an audio acquisition component 103, an audio receiving component 104, and an audio conversion component 105.

Wherein the switch control component 101 is configured to generate a first switch signal or a second switch signal according to the first key signal.

Optionally, the first key signal includes key information of a user, and the switch control component 101 implements a signal output function according to the key information of the user, and the audio control function of the audio conversion circuit 10 has high controllability.

The switch control component 101 can realize a signal conversion function, the first switch signal or the second switch signal output by the switch control component 101 can realize a corresponding audio control function, and the audio conversion circuit 10 has high audio data conversion efficiency and conversion sensitivity.

The audio control component 102 is connected to the switch control component 101 and configured to generate a first control signal according to the first switch signal or generate a second control signal according to the second switch signal.

The audio control component 102 has a centralized control function, the audio control component 102 implements signal conversion according to the switch information output by the switch control component 101, and the corresponding audio information control function can be implemented according to the first control signal or the second control signal output by the audio control component 102.

The audio acquisition component 103 is connected to the audio control component 102, and is configured to acquire voice information of a preset region according to a first control signal and generate a first audio signal.

The preset area is a preset surrounding environment range; optionally, the audio acquisition component 103 may acquire voice information of a human body or voice information generated by an object, and convert the voice information through the audio acquisition component 103 to obtain a first audio signal; therefore, the audio acquisition component 103 is driven by the first control signal to realize a recording function, and the audio conversion circuit 10 can record audio information in a preset area in real time through the audio acquisition component 103, so that the acquisition efficiency and sensitivity of the voice information are guaranteed.

The audio receiving component 104 is connected to the audio control component 102 and the audio storage device 30, and configured to obtain the first voice signal stored in the audio storage device 30 according to the second control signal.

Illustratively, the audio storage device 30 is a TF (Trans Flash) Card or an SD (Secure Digital Memory Card), so the audio receiving component 104 can interact with different types of storage devices; the audio storage device 30 stores audio information in advance, and then receives the audio information in real time through the audio receiving component 104, and the audio conversion circuit 10 can perform efficient processing and transmission on the audio information stored in the audio storage device 30, and has strong controllability.

The audio conversion component 105 is connected to the audio control component 102 and the mobile terminal 20, and is configured to receive a first audio signal transmitted by the audio control component 102, perform format conversion on the first audio signal to obtain a second audio signal, and output the second audio signal to the mobile terminal 20 or store the second audio signal; or configured to receive the first voice signal transmitted by the audio control component 102, perform format conversion on the first voice signal to obtain a second voice signal, and output the second voice signal to the mobile terminal 20 or store the second voice signal.

Illustratively, the mobile terminal 20 is a mobile phone, and further, the audio information can be output to the mobile phone through the audio conversion component 105, so as to meet the requirement of audio information storage.

The audio control component 102 has a relatively high transmission function for voice information, and when the audio acquisition component 103 outputs the first audio signal to the audio control component 102, or the audio receiving component 104 outputs the first voice signal to the audio control component 102, the audio control component 102 can transmit the first audio signal or the first voice signal to the audio conversion component 105.

When the audio conversion circuit 10 implements a recording function on the voice information in the preset area according to the first key signal, the audio control component 102 outputs the first audio signal to the audio conversion component 105, the audio conversion component 105 performs format conversion on the first audio signal to obtain a second audio signal, and the audio conversion component 105 can output the second audio signal to the mobile terminal 20 or store the second audio signal according to the actual circuit function requirement of the user, so that the user can obtain the recording information through the mobile terminal 20.

When the audio conversion circuit 10 obtains the audio information stored in the audio storage device 30 according to the first key signal, the audio control component 102 outputs the first voice signal to the audio conversion component 105, and the audio conversion component 105 performs format conversion on the first voice signal to obtain a second voice signal, and outputs the second voice signal to the mobile terminal 20 or stores the second voice signal; therefore, the audio information stored in the audio storage device 30 can be read by the audio conversion circuit 10, and the user obtains the corresponding audio information from the mobile terminal 30, thereby ensuring the security of transmission and storage of the audio information of the audio conversion circuit 10.

Fig. 1 shows a structural schematic diagram of the audio conversion circuit 10, and different audio control functions are implemented by the switch control component 101 according to the first key signal, on one hand, an audio acquisition function of an external environment is implemented by the first switch signal output by the switch control component 101, and audio information in the external environment is stored or uploaded to the mobile terminal 20; on the other hand, the information reading function of the audio storage device 30 is realized through the second switch signal output by the switch control component 101, and after the audio information stored in the audio storage device 30 is converted and processed, the audio information stored in the audio storage device 30 is stored or uploaded to the mobile terminal 20; therefore, the audio control function of the audio conversion circuit 10 in this embodiment has high controllability and flexibility, is complete in function, can realize a recording function or a voice signal reading function according to the actual needs of the user, meets various audio control needs of the user, and has high compatibility; the problem that in the prior art, the audio equipment is single in function, cannot record and store voice information in an external environment, and is low in practical value is effectively solved.

As an alternative implementation, fig. 2 shows a schematic structure of the audio conversion module 105 provided in this embodiment, please refer to fig. 2, where the audio conversion module 105 includes: a switch control section 1051, a signal conversion section 1052, an audio output section 1053, and a signal storage section 1054; wherein the switch controlling part 1051 is configured to generate the third switch signal or the fourth switch signal according to the second key signal.

Illustratively, the second key signal includes key information of the user, and after the key information of the user is identified and converted by the switch control unit 1051, different control functions are implemented on the audio data by the third switch signal or the fourth switch signal output by the switch control unit 1051.

The signal conversion component 1052 is connected to the audio control component 102, and configured to receive a first audio signal transmitted by the audio control component 102, perform format conversion on the first audio signal, and obtain a second audio signal; or after receiving the first voice signal transmitted by the audio control component 102, format conversion is performed on the first voice signal to obtain a second voice signal.

After the audio acquisition component 103 implements a recording function on the voice information in the external environment, or the audio receiving component 104 implements a reading function on the first voice signal stored in the audio storage device 30, the audio control component 102 can implement voice information transmission, and format conversion is performed on various voice information through the signal conversion component 1052, so that the second audio signal or the second voice signal output by the signal conversion component 1052 can implement compatible transmission and recognition inside the audio conversion circuit 10; furthermore, the audio conversion component 105 can perform flexible audio processing on various types of voice information, and has high compatibility and practical value, thereby meeting the multifunctional voice information control requirements of users.

The audio output part 1053 is connected to the signal conversion part 1052 and the switch control part 1051, and configured to output the second audio signal or the second voice signal to the mobile terminal 20 according to the third switch signal.

Alternatively, the audio output section 1053 encodes the second audio signal or encodes the second voice signal according to the third switching signal to output to the mobile terminal 20.

The audio output component 1053 can perform data encoding on the voice information according to the third switch signal, so that the second audio signal or the second voice signal after data encoding can completely meet the data transmission requirement of the mobile terminal 20, the signal interaction efficiency and the signal interaction accuracy of the voice information between the audio output component 1053 and the mobile terminal 20 are ensured, and a user obtains the voice information through the mobile terminal 20 in real time, so that good use experience is brought to the user.

The signal storage section 1054 is connected to the signal conversion section 1052 and the switch control section 1051, and configured to store the second audio signal or the second voice signal according to the fourth switch signal.

Wherein the signal storage section 1054 has a data storage function, the data storage operation of the signal storage section 1054 can be activated by the fourth switching signal, and when the signal conversion section 1052 outputs the second audio signal or the second voice signal to the signal storage section 1054, the complete voice information can be retained by the signal storage section 1054; the audio conversion circuit 10 in the present embodiment can realize a compatible data storage function by itself.

As an alternative implementation, fig. 3 shows a schematic structure of the signal storage unit 1054 provided in this embodiment, please refer to fig. 3, where the signal storage unit 1054 includes: a switch controller 301, a data memory 302, and a data transmitter 303; the switch controller 301 is connected to the signal conversion part 1052 and the switch control part 1051, and configured to receive the second audio signal or the second voice signal according to the fourth switch signal, and generate the fifth switch signal or the sixth switch signal according to the third key signal.

Optionally, the third key signal includes key information of the user, and the switch controller 301 can generate a corresponding switch signal according to a circuit control requirement of the user, so as to change a voice information storage state of the signal storage unit 1054.

The data storage 302 is connected to the switch controller 301 and configured to store the second audio signal or the second voice signal according to the fifth switch signal.

The data transmitter 303 is connected to the switch controller 301 and the peripheral storage device 40, and configured to output the second audio signal or the second voice signal to the peripheral storage device 40 according to the sixth switching signal.

Optionally, the peripheral storage device 40 is a usb disk, and complete voice information can be stored in real time through the peripheral storage device 40; therefore, the switch controller 301 in this embodiment performs external storage or internal storage on the voice information according to the audio control requirement of the user, thereby improving the storage compatibility of the voice information.

As an alternative implementation, fig. 4 shows another structural schematic of the audio conversion module 105 provided in this embodiment, and compared with the structure of the audio conversion module 105 in fig. 2, the audio conversion module 105 in fig. 4 further includes: a power supply section 1055, the power supply section 1055 being connected to the signal conversion section 1052 and configured to supply power to the signal conversion section 1052; the power supply unit 1055 can ensure the safe power-on function of the signal conversion unit 1052, and the signal conversion unit 1052 has higher voice information conversion efficiency and conversion precision.

As an alternative implementation, fig. 5 shows a schematic structure of the power supply unit 1055 provided in this embodiment, please refer to fig. 5, where the power supply unit 1055 includes: a power input 501 and a voltage regulator 502; the power input 501 is configured to access a first power signal.

Optionally, the first power signal is derived from a battery, so that the first power signal can be quickly and compatibly transmitted through the power input unit 501, thereby ensuring the power-on efficiency and accuracy of the signal conversion unit 1052.

The voltage regulator 502 is connected between the power input 501 and the signal conversion unit 1052, and configured to regulate the first power signal and output the regulated first power signal to the signal conversion unit 1052.

The voltage regulator 502 can change the voltage of the first power signal, for example, the voltage regulator 502 performs a voltage boosting operation or a voltage dropping operation on the first power signal, and the voltage-regulated first power signal can completely meet the power-on power requirement of the signal conversion component 1052, thereby improving the power transmission security of the signal conversion component 1052.

As an alternative implementation, fig. 6 shows a schematic circuit structure of the voltage regulator 502 provided in this embodiment, please refer to fig. 6, in which the voltage regulator 502 includes: the voltage regulation circuit comprises a voltage regulation chip U1, a first capacitor C1, a second capacitor C2, a third capacitor C3, a first resistor R1, a second resistor R2 and a first inductor L1.

A voltage input pin VIN of the voltage regulating chip U1, an enable driving pin RUN of the voltage regulating chip U1, and a first end of a first capacitor C1 are commonly connected to the power input device 501, and a second end of the first capacitor C1 is grounded GND; the first power signal is output to the voltage regulation chip U1 through the power input device 501, so that the voltage regulation chip U1 can realize a voltage regulation function for electric energy, and the voltage regulation efficiency for the first power signal is high.

The first terminal of the first inductor L1 is connected to the voltage output pin SW of the voltage regulating chip U1, and the second terminal of the first inductor L1, the first terminal of the first resistor R1, the first terminal of the second capacitor C2 and the first terminal of the third capacitor C3 are commonly connected to the signal conversion unit 1052.

The second end of the third capacitor C3 is grounded GND;

the second end of the second capacitor C2 and the second end of the first resistor R1 are connected to the first end of the second resistor R2, and the second end of the second resistor R2 is grounded GND; the second capacitor C2 and the third capacitor C3 can stabilize the voltage of the first power signal, thereby ensuring the stability and reliability of the power access of the signal conversion component 1052.

Illustratively, the voltage regulating chip U1 is of the type: SV1D3020-06DN-TR 3; the voltage regulation function of flexibility and accuracy can be realized through the voltage regulation chip U1, and the electric energy safety of the signal conversion part 1052 is guaranteed.

As an alternative implementation, fig. 7 shows a schematic circuit structure of the signal converting unit 1052 provided in this embodiment, please refer to fig. 7, and the signal converting unit 1052 includes: the circuit comprises a signal conversion chip U2, a fourth capacitor C4, a third resistor R3 and a common mode filter RL.

A first end of the third resistor R3 and a first end of the fourth capacitor C4 are commonly connected to a voltage stabilizing control pin AG of the signal conversion chip U2, and a second end of the third resistor R3 and a second end of the fourth capacitor C4 are commonly connected to the ground GND; the signal conversion chip U2 can keep the electric energy of itself stable through the voltage-stabilizing control pin AG to ensure the electric energy safety of the signal conversion chip U2.

As shown in fig. 7, the signal input pin of the signal conversion chip U2 is connected to a first end of the common mode filter HL, and a second end of the common mode filter HL is connected to the audio control component 102, and the signal input pin of the signal conversion chip U2 includes: DN1 and DP 1; when the audio control component 102 outputs the first audio signal or the first voice signal, the common mode filter HL can perform common mode noise suppression and low differential mode noise suppression on the signal, so as to avoid distortion of the voice information during transmission.

The signal output pin of the signal conversion chip U1 is connected with the audio output part 1053 and the signal storage part 1054; as shown in fig. 7, the signal output pin of the signal conversion chip U2 includes: TXP2 and TXN2, the signal output pin of signal conversion chip U1 can be with second audio signal or second voice signal output to external circuit part, has improved the transmission efficiency and the accuracy of voice information.

Illustratively, the signal conversion chip U2 has a model number: DX07P024, through signal conversion chip U2 can realize accurate conversion to the format of speech information to guarantee audio conversion circuit 10 to the control efficiency of speech information.

As an alternative implementation, fig. 8 shows a schematic circuit structure of the audio output unit 1053 provided in this embodiment, please refer to fig. 8, where the audio output unit 1053 includes: the audio coding chip U3, the steady voltage control chip U4, the fifth capacitor C5, the sixth capacitor C6 and the fourth resistor R4.

A switch control pin of the audio coding chip U3 is connected with a switch control part 1051; as shown in fig. 8, the switch control pin of the audio encoding chip U3 includes: AIFBCLK/GPIO3, AIF1LRCLK/GPIO4, AIF1RXDAT/GPIO2, and AIF2TXDAT/GPIO 1; the third switching signal can be output to the audio encoding chip U3 through the switching control part 1051 to drive the signal encoding operation of the audio encoding chip U3.

The signal input pin of the audio coding chip U3 is connected with the signal conversion part 1052; as shown in fig. 8, the signal input pins of the audio encoding chip U3 include: the AIF2BCLK/GPIO7, AIF2LRCLK/GPIO8 and AIF2TXDAT/GPIO5 can output voice information to the audio encoding chip U3 through the signal conversion part 1052.

The signal output pin of the audio coding chip U3 is connected with the mobile terminal 20; as shown in fig. 8, the signal output pin of the audio encoding chip U3 includes: AIF3BCLK/GPIO11, AIF3LRCLK/GPIO12, AIF3RXDAT/GPIO10, and AIF3TXDAT/GPIO 9; the encoded voice information is output to the mobile terminal 20 through the signal output pin of the audio encoding chip U3, so that the transmission compatibility and stability of the voice information are guaranteed.

A first end of the fourth resistor R4 is connected to a first dc power supply, which is illustratively a 1V to 10V dc power supply; the second end of the fourth resistor R4 and the first end of the fifth capacitor C5 are connected to the electric energy input pin of the voltage stabilization control chip U4 IN common, the second end of the fifth capacitor C5 is connected to the ground GND, the ground pin of the voltage stabilization control chip U4 is connected to the ground GND, the electric energy output pin of the voltage stabilization control chip U4 is connected to the first end of the sixth capacitor C6, and the second end of the sixth capacitor C6 is connected to the voltage stabilization control pin IN1BRP of the audio coding chip U3; as shown in fig. 8, the power input pin of the voltage regulation control chip U4 is the 4 th pin, the power output pin of the voltage regulation control chip U4 is the 1 st pin, and the ground pin of the voltage regulation control chip U4 includes: a 2 nd pin and a 3 rd pin; the voltage-stabilizing control chip U4 can ensure that the internal power of the audio coding chip U3 is kept stable, and the audio coding chip U3 has higher signal coding efficiency for voice information.

Illustratively, the audio encoding chip U3 is a PCM3168 series chip; the voltage stabilizing control chip U4 is a LM2930T series chip, and the signal encoded by the audio encoding chip U3 can be recognized by the mobile terminal 20, so that the user can obtain corresponding voice information in real time and quickly through the mobile terminal 20.

As an alternative implementation, fig. 9 shows a schematic circuit structure of the data memory 302 provided in this embodiment, please refer to fig. 9, where the data memory 302 includes: a signal storage chip U5 and a fifth resistor R5.

The signal input pin CTRL12 of the signal storage chip U5 is connected to a first terminal of the fifth resistor R5, and a second terminal of the fifth resistor R5 is connected to the switch controller 301.

Illustratively, the signal storage chip U5 is: K9F1G08U0C or W25Q32 FVZPIG; therefore, the signal storage chip U5 can ensure the safety and high efficiency of voice information storage.

As an alternative implementation, fig. 10 shows a schematic circuit structure of the data transmitter 303 provided in this embodiment, please refer to fig. 10, where the data transmitter 303 includes: the first data transfer chip U6.

The signal input pin D of the first data transmission chip U6 is connected to the switch controller 301, and the signal output pin D + of the first data transmission chip U6 is used for connecting to the external memory device 40.

The ground pin of the first data transmitting chip U6 is grounded to GND.

Illustratively, the model of the first data transmission chip U6 is: SV7221 can ensure the transmission safety and compatibility of voice information through the first data transmission chip U1.

As an alternative implementation, fig. 11 shows a schematic structure of the switch control assembly 101 provided in this embodiment, and referring to fig. 11, the switch control assembly 101 includes: a signal selection section 1011 and a signal switching section 1012; the signal selection component 1011 is configured to collect key information of a user and generate a first key signal according to the key information; further, the signal selecting unit 1011 generates the first key signal according to the circuit control requirement information of the user, and the audio control function of the audio converting circuit 10 has high controllability and flexibility.

The signal switching unit 1012 is connected between the signal selecting unit 1011 and the audio control module 102, and configured to generate a first switching signal or a second switching signal according to the first key signal.

The signal switching part 1012 has higher signal conversion efficiency and conversion precision, and the switching signal output by the signal switching part 1012 can be switched between the recording function and the voice signal reading function, so that the precision and efficiency of audio control are improved, the multifunctional audio control requirement of a user is met, and the practical value is higher.

As an alternative implementation, fig. 12 shows a schematic circuit structure of the signal selecting unit 1011 provided in this embodiment, and referring to fig. 12, the signal selecting unit 1011 includes: a second data transmitting chip U7 and a first selection switch S1.

The first input end of the first selection switch S1 is connected to a second dc power supply, and optionally, the second dc power supply is a 1V-10V dc power supply; the second input terminal of the first selection switch S1 is grounded GND, the output terminal of the first selection switch S1 is connected to the switch control pin S of the second data transmitting chip U7, the signal input pin D-of the second data transmitting chip U7 and the signal output pin D + of the second data transmitting chip U7 are connected to the signal switching unit 1012, and the ground pin of the second data transmitting chip U7 is grounded GND.

Illustratively, the model of the second data transmission chip U7 is: SV7221, the transmission efficiency of the first key signal can be guaranteed by the second data transmission chip U7, and when the first selection switch S1 switches between the first input terminal and the second input terminal according to the key information, the audio control function of the audio conversion circuit 10 has higher flexibility and compatibility, which brings better user experience.

As an alternative implementation, fig. 13 shows a schematic circuit structure of the signal switching unit 1012 provided in this embodiment, and referring to fig. 13, the signal switching unit 1012 includes: the circuit comprises a signal switching chip U8, a first crystal oscillator Y1, a seventh capacitor C7, an eighth capacitor C8, a sixth resistor R6 and a first light-emitting diode DS 1.

The state indication pin GPIO2 of the signal switching chip U8 is connected with the first end of a sixth resistor R6, the second end of the sixth resistor R6 is connected with the cathode of a first light-emitting diode DS1, and the anode of the first light-emitting diode DS1 is connected with a third direct-current power supply; optionally, the third dc power supply is a 1V to 10V dc power supply.

The ground terminal of the first crystal oscillator Y1 is grounded GND, the first signal transmission terminal of the first crystal oscillator Y1 and the first terminal of the seventh capacitor C7 are commonly connected to the oscillation signal output pin XO of the signal switching chip U8, and the second terminal of the seventh capacitor C7 is grounded GND.

A second signal transmission terminal XI of the first crystal oscillator Y1 and a first terminal of the eighth capacitor C8 are commonly connected to an oscillation signal input pin XI of the signal switching chip U8, and a second terminal of the eighth capacitor C8 is grounded GND; the first crystal oscillator Y1 can provide a preset crystal oscillator frequency for the signal switching chip U8, so as to ensure the working stability and control efficiency of the signal switching chip U8.

The key selection pin of the signal switching chip U8 is connected with the signal selection component 1011, and the signal selection component 1011 outputs a first key signal to the signal switching chip U8; a signal output pin of the signal switching chip U8 is connected with the audio control component 102, and the first key signal is subjected to signal conversion through the signal switching chip U8 so as to be output to the audio control component 102; as shown in fig. 13, the key selection pin of the signal switching chip U8 includes: REC _ EN, IIS _ DO, and IIS _ DI; the signal output pin of the signal switching chip U8 includes: USBDP and USBDN.

Illustratively, the signal switching chip U8 has the following model: MS2244 or MT 8880; the signal switching chip U8 can realize a high-efficiency signal conversion function, and the precision and the flexibility of audio control are guaranteed.

As an alternative implementation, fig. 14 shows a structural schematic of the audio control component 102 provided in this embodiment, please refer to fig. 14, where the audio control component 102 includes: a reset part 1021, a crystal oscillation part 1022, a switch enable part 1023, and an audio control part 1024.

Reset component 1021 is configured to generate a reset signal.

Crystal component 1022 is configured to generate a crystal signal.

The switch enable section 1023 is configured to generate a switch enable signal.

The audio control component 1024 is connected with the reset component 1021, the crystal oscillator component 1022, the switch enabling component 1023, the switch control component 101, the audio acquisition component 103, the audio receiving component 104 and the audio conversion component 105, and is configured to generate a first control signal according to the reset signal, the crystal oscillator signal, the switch enabling signal and the first switch signal, and transmit the first audio signal; or generating a second control signal according to the reset signal, the crystal oscillator signal, the switch enable signal and the second switch signal, and transmitting the first voice signal.

The audio control component 1024 can be reset through the reset signal, a preset crystal oscillator frequency can be provided for the audio control component 1024 through the crystal oscillator signal, and the audio control component 1024 can be driven through the switch enable signal to realize a signal conversion function; the audio control component 1024 is thus capable of implementing centralized control and signaling functions.

As an alternative implementation, fig. 15 shows a schematic circuit structure of a reset component 1021 provided in this embodiment, and referring to fig. 15, the reset component 1021 includes: a first diode D1, a seventh resistor R7, and a ninth capacitor C9.

The first end of the seventh resistor R7 and the cathode of the first diode D1 are connected to a fourth direct-current power supply in a sharing mode, and optionally, the fourth direct-current power supply is a 1-10V direct-current power supply; a second terminal of the seventh resistor R7, an anode of the first diode D1, and a first terminal of the ninth capacitor C9 are commonly connected to the audio control unit 1024.

The second terminal of the ninth capacitor C9 is connected to ground GND.

As an alternative implementation, fig. 16 shows a schematic circuit structure of the crystal oscillator component 1022 provided in this embodiment, and referring to fig. 16, the crystal oscillator component 1022 includes: a second crystal oscillator Y2', a tenth capacitor C10, and an eleventh capacitor C11.

The ground terminal of the second crystal oscillator Y2 is grounded to GND, the first terminal of the tenth capacitor C10 and the first signal transmission terminal of the second crystal oscillator Y2 are commonly connected to the audio control unit 1024, and the second terminal of the tenth capacitor C10 is grounded to GND.

A first terminal of the eleventh capacitor C11 and a second signal transmission terminal of the second crystal Y2 are commonly connected to the audio control unit 1024, and a second terminal of the eleventh capacitor C11 is connected to the ground GND.

As an alternative implementation, fig. 17 shows a schematic circuit structure of the switch enabling unit 1023 provided in this embodiment, please refer to fig. 17, and the switch enabling unit 1023 includes: a first switch SW1 and an eighth resistor R8.

The first end of the first switch SW1 is connected with a fifth direct-current power supply, and optionally, the fifth direct-current power supply is a 1V-10V direct-current power supply; a second terminal of the first switch SW1 and a first terminal of the eighth resistor R8 are commonly connected to the audio control unit 1024, and a second terminal of the eighth resistor R8 is connected to the ground GND.

As an alternative embodiment, referring to fig. 14, the audio control component 102 further includes: a data storage section 1025; data storage section 1025 is connected to audio control section 1024 and is configured to store the first audio signal or the first voice signal; the security of the voice information can be secured by the data storage unit 1025.

As an alternative implementation, fig. 18 shows a schematic circuit structure of the data storage unit 1025 provided in this embodiment, and referring to fig. 18, the data storage unit 1025 includes: a data storage chip U9, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11 and a twelfth capacitor C12.

The data control pin W/P of the data storage chip U9 and the first end of the ninth resistor R9 are commonly connected to the audio control unit 1024, the second end of the ninth resistor R9, the power input pin VCC of the data storage chip U9, the first end of the tenth resistor R10, the first end of the eleventh resistor R11, and the first end of the twelfth capacitor C12 are commonly connected to the sixth dc power supply, optionally, the sixth dc power supply is a 1V-10V dc power supply, and the second end of the twelfth capacitor C12 is connected to the GND.

The second terminal of the tenth resistor R10 is connected to the clock control pin SCL of the data storage chip U9, and the second terminal of the eleventh resistor R11 is connected to the serial control pin SDA of the data storage chip U9; the sixth direct-current power supply outputs direct-current power to the data storage chip U9, and signal transmission safety and compatibility of the data storage chip U9 can be guaranteed.

Illustratively, the data storage chip U9 is an AT24C256C series chip; data storage functions are implemented by the data storage chip U9.

Fig. 19 shows a schematic structure of the audio converting apparatus 190 with a recording function according to the present embodiment, referring to fig. 19, the audio converting apparatus 190 includes: the audio conversion circuit 10 and the housing 1901 as described above, the housing 1901 is used for protecting the audio conversion circuit 10; optionally, the housing 1901 is a metal housing or a non-metal housing, and the audio conversion device 190 in this embodiment can be switched between a recording function and a voice signal reading function, and is complete in function, high in practical value, and capable of meeting the multifunctional use requirements of users.

The above are merely alternative embodiments of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. An audio conversion circuit with a recording function is connected with a mobile terminal, and is characterized in that the audio conversion circuit comprises:

the mobile terminal is connected with the audio control assembly and the mobile terminal, and is configured to receive the first audio signal transmitted by the audio control assembly, perform format conversion on the first audio signal to obtain a second audio signal, and output the second audio signal to the mobile terminal or store the second audio signal; or the audio conversion component is configured to receive the first voice signal transmitted by the audio control component, perform format conversion on the first voice signal to obtain a second voice signal, and output the second voice signal to the mobile terminal or store the second voice signal.

2. The audio conversion circuit of claim 1, wherein the audio conversion component comprises:

a switch control section configured to generate a third switch signal or a fourth switch signal in accordance with the second key signal;

the audio control component is connected with the audio control component and configured to receive the first audio signal transmitted by the audio control component and then perform format conversion on the first audio signal to obtain a second audio signal; or a signal conversion component for receiving the first voice signal transmitted by the audio control component and then performing format conversion on the first voice signal to obtain a second voice signal;

an audio output part connected with the signal conversion part and the switch control part and configured to output the second audio signal or the second voice signal to the mobile terminal according to the third switch signal; and

and a signal storage unit connected to the signal conversion unit and the switch control unit and configured to store the second audio signal or the second voice signal according to the fourth switch signal.

3. The audio conversion circuit according to claim 2, wherein the signal storage section includes:

the switch controller is connected with the signal conversion part and the switch control part, and is configured to receive the second audio signal or the second voice signal according to the fourth switch signal and generate a fifth switch signal or a sixth switch signal according to a third key signal;

a data storage connected to the switch controller and configured to store the second audio signal or the second voice signal according to the fifth switch signal; and

and the data transmitter is connected with the switch controller and the peripheral storage device and is configured to output the second audio signal or the second voice signal to the peripheral storage device according to the sixth switch signal.

4. The audio conversion circuit of claim 2, wherein the audio conversion component further comprises:

a power supply section connected to the signal conversion section and configured to supply power to the signal conversion section.

5. The audio conversion circuit according to claim 4, wherein the power supply section includes:

a power input configured to access a first power signal; and

and the voltage regulator is connected between the power supply input device and the signal conversion component, is configured to regulate the first power supply signal, and outputs the regulated first power supply signal to the signal conversion component.

6. The audio conversion circuit of claim 5, wherein the voltage regulator comprises:

the voltage regulation circuit comprises a voltage regulation chip, a first capacitor, a second capacitor, a third capacitor, a first resistor, a second resistor and a first inductor;

the voltage input pin of the voltage regulation chip, the enable driving pin of the voltage regulation chip and the first end of the first capacitor are connected to the power input unit in common, and the second end of the first capacitor is grounded;

the first end of the first inductor is connected with a voltage output pin of the voltage regulating chip, and the second end of the first inductor, the first end of the first resistor, the first end of the second capacitor and the first end of the third capacitor are connected with the signal conversion component in common;

the second end of the third capacitor is grounded;

the second end of the second capacitor and the second end of the first resistor are connected to the first end of the second resistor in common, and the second end of the second resistor is grounded.

7. The audio conversion circuit according to claim 2, wherein the signal conversion section includes:

the signal conversion chip, the fourth capacitor, the third resistor and the common-mode filter are connected in series;

the first end of the third resistor and the first end of the fourth capacitor are connected to a voltage stabilization control pin of the signal conversion chip in a sharing mode, and the second end of the third resistor and the second end of the fourth capacitor are connected to the ground in a sharing mode;

the signal input pin of the signal conversion chip is connected with the first end of the common mode filter, and the second end of the common mode filter is connected with the audio control component;

and the signal output pin of the signal conversion chip is connected with the audio output component and the signal storage component.

8. The audio conversion circuit according to claim 2, wherein the audio output section includes:

the audio coding chip, the voltage stabilizing control chip, the fifth capacitor, the sixth capacitor and the fourth resistor;

the switch control pin of the audio coding chip is connected with the switch control component;

the signal input pin of the audio coding chip is connected with the signal conversion component;

the signal output pin of the audio coding chip is connected with the mobile terminal;

the first end of the fourth resistor is connected with a first direct current power supply, the second end of the fourth resistor and the first end of the fifth capacitor are connected with the electric energy input pin of the voltage stabilization control chip in a sharing mode, the second end of the fifth capacitor is grounded, the ground pin of the voltage stabilization control chip is grounded, the electric energy output pin of the voltage stabilization control chip is connected with the first end of the sixth capacitor, and the second end of the sixth capacitor is connected with the voltage stabilization control pin of the audio coding chip.

9. The audio conversion circuit of claim 3, wherein the data memory comprises:

the signal storage chip and the fifth resistor;

and a signal input pin of the signal storage chip is connected with a first end of the fifth resistor, and a second end of the fifth resistor is connected with the switch controller.

10. The audio conversion circuit according to claim 3, wherein the data transmitter includes a first data transmission chip;

the signal input pin of the first data transmission chip is connected with the switch controller, and the signal output pin of the first data transmission chip is used for being connected with the peripheral storage device;

and the grounding pin of the first data transmission chip is grounded.

11. The audio conversion circuit of claim 1, wherein the switch control component comprises:

the signal selection component is configured to collect key information of a user and generate the first key signal according to the key information; and

and the signal switching component is connected between the signal selection component and the audio control assembly and is configured to generate the first switch signal or the second switch signal according to the first key signal.

12. The audio conversion circuit according to claim 11, wherein the signal selection section includes:

the second data transmission chip and the first selection switch;

the first input end of the first selection switch is connected with a second direct-current power supply, the second input end of the first selection switch is grounded, the output end of the first selection switch is connected with the switch control pin of the second data transmission chip, the signal input pin of the second data transmission chip and the signal output pin of the second data transmission chip are connected with the signal switching component, and the ground pin of the second data transmission chip is grounded.

13. The audio conversion circuit according to claim 11, wherein the signal switching section includes:

the signal switching chip, the first crystal oscillator, the seventh capacitor, the eighth capacitor, the sixth resistor and the first light emitting diode;

the state indicating pin of the signal switching chip is connected with the first end of the sixth resistor, the second end of the sixth resistor is connected with the cathode of the first light-emitting diode, and the anode of the first light-emitting diode is connected with a third direct-current power supply;

the ground terminal of the first crystal oscillator is grounded, the first signal transmission terminal of the first crystal oscillator and the first terminal of the seventh capacitor are connected to the oscillation signal output pin of the signal switching chip, and the second terminal of the seventh capacitor is grounded;

a second signal transmission end of the first crystal oscillator and a first end of the eighth capacitor are connected to an oscillation signal input pin of the signal switching chip in a shared mode, and a second end of the eighth capacitor is grounded;

and a key selection pin of the signal switching chip is connected with the signal selection component, and a signal output pin of the signal switching chip is connected with the audio control component.

14. The audio conversion circuit of claim 1, wherein the audio control component comprises:

a reset component configured to generate a reset signal;

a crystal component configured to generate a crystal signal;

a switch enable component configured to generate a switch enable signal; and

the audio acquisition component, the audio receiving component and the audio conversion component are connected, and configured to generate the first control signal according to the reset signal, the crystal oscillator signal, the switch enable signal and the first switch signal, and transmit the first audio signal; or the audio control component generates the second control signal according to the reset signal, the crystal oscillator signal, the switch enable signal and the second switch signal, and transmits the first voice signal.

15. The audio conversion circuit of claim 14, wherein the reset component comprises:

the first diode, the seventh resistor and the ninth capacitor;

a first end of the seventh resistor and a cathode of the first diode are connected to a fourth direct current power supply in a sharing mode, and a second end of the seventh resistor, an anode of the first diode and a first end of the ninth capacitor are connected to the audio control component in a sharing mode;

and the second end of the ninth capacitor is grounded.

16. The audio conversion circuit according to claim 14, wherein the crystal oscillator section comprises:

a second crystal oscillator, a tenth capacitor and an eleventh capacitor;

a ground terminal of the second crystal oscillator is grounded, a first terminal of the tenth capacitor and a first signal transmission terminal of the second crystal oscillator are connected to the audio control component in common, and a second terminal of the tenth capacitor is grounded;

the first end of the eleventh capacitor and the second signal transmission end of the second crystal oscillator are connected to the audio control component in common, and the second end of the eleventh capacitor is grounded.

17. The audio conversion circuit of claim 14, wherein the switch enabling component comprises:

a first switch and an eighth resistor;

the first end of the first switch is connected with a fifth direct-current power supply, the second end of the first switch and the first end of the eighth resistor are connected to the audio control component in a shared mode, and the second end of the eighth resistor is connected to the ground.

18. The audio conversion circuit of claim 14, wherein the audio control component further comprises:

a data storage component coupled to the audio control component and configured to store the first audio signal or the first voice signal.

19. The audio conversion circuit according to claim 18, wherein the data storage section includes:

the circuit comprises a data storage chip, a ninth resistor, a tenth resistor, an eleventh resistor and a twelfth capacitor;

a data control pin of the data storage chip and a first end of the ninth resistor are connected to the audio control component in common, a second end of the ninth resistor, a power input pin of the data storage chip, a first end of the tenth resistor, a first end of the eleventh resistor and a first end of the twelfth capacitor are connected to a sixth direct-current power supply in common, and a second end of the twelfth capacitor is connected to the ground;

the second end of the tenth resistor is connected with a clock control pin of the data storage chip, and the second end of the eleventh resistor is connected with a serial control pin of the data storage chip.

20. An audio conversion apparatus having a recording function, comprising:

the audio conversion circuit of claim 1; and