CN107273087B - Audio input/output system, equipment and method based on Type-C interface - Google Patents
Audio input/output system, equipment and method based on Type-C interface Download PDFInfo
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Abstract
An audio input/output system, equipment and method based on a Type-C interface can convert an obtained analog audio signal into a digital signal which can be transmitted by the Type-C interface, and output the converted digital signal through the Type-C interface; and/or acquiring a digital signal through a Type-C interface, and converting the received digital signal into an analog audio signal; that is to say, the accessible converts analog audio signal into digital signal, realizes the input and the output of the conversation audio frequency based on Type-C interface, need not to expand the analog audio frequency passageway in current Type-C interface, and hardware design is simple, and still can avoid analog audio signal to receive the relatively poor problem of conversation audio frequency tone quality that noise interference leads to.
Description
Technical Field
The invention relates to the technical field of terminals, in particular to an audio input/output system, audio input/output equipment and an audio input/output method based on a Type-C interface.
Background
At present, more and more terminals adopt Type-C interfaces, and because the Type-C interfaces can be compatible with audio data, the original analog audio interface of the terminal is removed in the implementation scheme of the terminal peripheral earphone, so that the body of the terminal is thinner, and the waterproof performance is better.
The audio channel of the terminal is divided into a call channel and a media channel, the baseband chip controls the input and the output of the call audio of the call channel, and the application processor controls the input and the output of the media audio of the media channel. The media audio is a digital signal, the call audio is an analog signal, and the Type-C interface can only transmit the digital signal, so that in a scheme of realizing the peripheral earphone of the terminal by adopting the Type-C interface, how to input/output the call audio through the Type-C interface becomes a difficulty for realizing the scheme.
For example, taking the call audio output as an example, first, the call audio cannot be converted into a digital signal by the application processor and transmitted to the Type-C interface. The reason is that when the call channel of the terminal is opened and the call audio is output, the application processor cannot access the baseband chip to acquire the call audio; secondly, even if the application processor can access the baseband chip, the process of reading the call audio and converting the call audio into the digital signal by the application processor needs time, and the relevant telecommunication standard has strict standard on the uplink and downlink delay of the call, so that the call audio converted by the application processor can cause the terminal to use the earphone to make the call not conform to the relevant telecommunication standard; in addition, if the application processor accesses the baseband chip to obtain the call audio, the application processor cannot sleep in the whole call process, which results in a great increase in the power consumption of the terminal.
In addition, the prior art also provides a Type-C headset scheme, which is compatible with a headset analog channel and a headset digital channel in a Type-C interface, and although inputting/outputting call audio through the Type-C interface is implemented, the scheme has the following disadvantages:
first, the scheme is compatible with analog audio channels and digital audio channels, resulting in a complicated hardware design of an audio input/output device of the terminal. In addition, because in the overall arrangement of terminal, general mainboard (including antenna, baseband chip etc.) is at the cell-phone top, and Type-C interface is located the terminal bottom, and the line of walking from the baseband chip to the analog audio channel of Type-C interface is very long this moment, and simultaneously, the line of walking of antenna line and/or having some heavy currents also need extend to Type-C interface from the mainboard, and the signal in these lines can cause very big interference to analog audio signal, leads to final Type-C earphone analog audio input/output's tone quality to be relatively poor.
Disclosure of Invention
The embodiment of the invention provides an audio input/output system, equipment and a method based on a Type-C interface, which are used for solving the problems that the existing terminal is difficult to realize the input/output of conversation audio based on the Type-C interface or has complex realization mode and poor tone quality.
An aspect of an embodiment of the present invention provides an audio input/output system based on a Type-C interface, including an audio input/output device and an audio conversion device, where:
the audio input/output equipment is used for converting the acquired analog audio signal into a digital signal which can be transmitted by a Type-C interface and outputting the digital signal through the Type-C interface;
the audio conversion equipment is used for receiving the digital signal output by the Type-C interface and converting the received digital signal into an analog audio signal; and/or
The audio conversion equipment is used for converting the acquired analog audio signals into digital signals which can be transmitted by a Type-C interface and outputting the digital signals to the audio input/output equipment through the Type-C interface;
and the audio input/output equipment is used for receiving the digital signal output by the Type-C interface and converting the received digital signal into an analog audio signal.
Another aspect of the embodiments of the present invention further provides an audio input/output device based on a Type-C interface, including an audio signal processing unit and the Type-C interface, where:
the audio signal processing unit is used for acquiring an analog audio signal and converting the acquired analog audio signal into a digital signal which can be transmitted by a Type-C interface;
the Type-C interface is used for outputting the digital signal converted by the audio signal processing unit; and/or
The Type-C interface is used for receiving digital signals;
and the audio signal processing unit is used for converting the received digital signal into an analog audio signal.
In another aspect, an embodiment of the present invention further provides an audio input/output method based on a Type-C interface, where the method includes:
acquiring an analog audio signal;
converting the acquired analog audio signal into a digital signal which can be transmitted by a Type-C interface;
outputting the converted digital signal through a Type-C interface; and/or
Acquiring a digital signal through a Type-C interface;
converting the received digital signal into an analog audio signal;
and outputting the converted analog audio signal.
The invention has the following beneficial effects:
the embodiment of the invention provides an audio input/output system, equipment and a method based on a Type-C interface, which can convert an acquired analog audio signal into a digital signal which can be transmitted by the Type-C interface and output the converted digital signal through the Type-C interface; and/or acquiring a digital signal through a Type-C interface, and converting the received digital signal into an analog audio signal; that is to say, the accessible converts analog audio signal into digital signal, realizes the input and the output of the conversation audio frequency based on Type-C interface, need not to expand the analog audio frequency passageway in current Type-C interface, and hardware design is simple, and still can avoid analog audio signal to receive the relatively poor problem of conversation audio frequency tone quality that noise interference leads to.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an audio input/output system based on a Type-C interface according to a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an audio input/output device according to a first embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a specific structure of an audio signal processing unit according to a first embodiment of the invention;
fig. 4 is a schematic diagram illustrating an applicable scenario of an audio signal processing unit according to a first embodiment of the invention;
fig. 5 is a schematic structural diagram of an audio conversion apparatus according to a first embodiment of the present invention;
fig. 6 is a schematic structural diagram of an audio converting apparatus according to a first embodiment of the present invention;
fig. 7 is a flowchart illustrating steps of an audio input/output method based on a Type-C interface according to a third embodiment of the present invention;
fig. 8 is a flowchart illustrating another step of an audio input/output method based on a Type-C interface according to a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the embodiment of the invention provides an audio input/output system based on a Type-C interface, which is suitable for inputting and outputting audio of terminals such as smart phones, tablet computers and smart watches. Specifically, as shown in fig. 1, which is a schematic structural diagram of the system according to the first embodiment of the present invention, the system may include an audio input/output device 101 and an audio converting device 102, where:
in a scene of terminal audio output, the audio input/output device 101 may be configured to convert an acquired analog audio signal into a digital signal that can be transmitted by a Type-C interface, and output the digital signal through the Type-C interface; the audio conversion device 102 is configured to receive the digital signal output by the Type-C interface, and convert the received digital signal into an analog audio signal;
in a scenario of terminal audio input, the audio conversion device 102 may be configured to convert an acquired analog audio signal into a digital signal that can be transmitted by a Type-C interface, and output the digital signal to the audio input/output device 101 through the Type-C interface; the audio input/output device 101 is configured to receive a digital signal output by the Type-C interface, and convert the received digital signal into an analog audio signal.
That is to say, the accessible converts analog audio signal into digital signal, realizes the input and the output of the conversation audio frequency based on Type-C interface, need not to expand the analog audio frequency passageway in current Type-C interface, and hardware design is simple, and still can avoid analog audio signal to receive the relatively poor problem of conversation audio frequency tone quality that noise interference leads to.
Alternatively, as shown in fig. 2, the audio input/output device 101 may include: audio signal processing unit 201 and Type-C interface 202, wherein:
in a scene of terminal audio output, the audio signal processing unit 201 may be configured to acquire an analog audio signal and convert the acquired analog audio signal into a digital signal that can be transmitted by the Type-C interface 202; the Type-C interface 202 may be configured to output a digital signal converted by the audio signal processing unit 201;
in a scenario of terminal audio input, the Type-C interface 202 may be configured to receive a digital signal; the audio signal processing unit 201 may be configured to convert the received digital signal into an analog audio signal.
It should be noted that the audio signal processing unit 201 may be integrated on a main circuit board of a terminal such as a smart phone, a tablet computer, and a smart watch, and the audio signal processing unit 201 is electrically connected to the baseband chip. The baseband chip is used to control the input and output of call audio (analog audio signal) of the terminal, so that, in a scenario of terminal audio output, the audio signal processing unit 201 can convert the call audio output by the baseband chip into a digital signal that can be transmitted by the Type-C interface 202; in a scenario of terminal audio input, the audio signal processing unit 201 may convert a digital signal received through the Type-C interface 202 into an analog audio signal and transmit the analog audio signal to the baseband chip.
Further optionally, as shown in fig. 3, which is a schematic diagram of a specific structure of the audio signal processing unit 201, the specific structure may include: a first codec 301 and a first USB (Universal Serial Bus) converter 302, wherein:
in a scenario of terminal audio output, the first codec 301 may be configured to receive an analog audio signal output by a baseband chip, convert the received analog audio signal into digital audio data in a set format, and output the digital audio data in the set format to the first USB converter 302; the first USB converter 302 is configured to convert the received digital audio data with a set format into a USB differential signal;
in a scenario of terminal audio input, the first USB converter 302 may be configured to convert the USB differential signal received by the Type-C interface 202 into digital audio data in a set format; the first codec 301 is configured to receive the digital audio data in the set format output by the first USB converter 302, convert the digital audio data in the set format into an analog audio signal, and output the analog audio signal to the baseband chip.
Alternatively, the digital audio data with the set format may specifically be digital audio data based on an I2S bus (Inter-ICSound bus, audio bus built in an integrated circuit) standard, the first codec 301 may be implemented by a codec (COder-DECoder) chip, and the first USB converter 302 may be implemented by an audio bridge chip. In a scene of terminal audio output, an analog audio signal output by a baseband chip can be converted into an I2S signal through a codec chip, then converted into a USB differential signal through an audio bridging chip, and finally output to a terminal through a Type-C interface 202; in the scenario of terminal audio input, the audio bridge chip may convert the USB differential signal received through the Type-C interface 202 into an I2S signal, and the codec chip converts the I2S signal output by the audio bridge chip into an analog audio signal and outputs the analog audio signal to the baseband chip.
It should be noted that the first codec 301 and the first USB converter 302 may also be implemented by other logic chips with the same function; in addition, the first codec 301 and the first USB converter 302 may be integrated into separate logic chips, or may be integrated into the same logic chip, and the embodiment is not limited thereto. For example, the first codec 301 and the first USB converter 302 may be implemented by using the same codec chip having a function of converting an I2S signal and a USB differential signal, and in a scenario of outputting a terminal audio, an analog audio signal output by a baseband chip may be converted into an I2S signal by the codec chip, and then converted into a USB differential signal, and finally the terminal is output through the Type-C interface 202, which is not described herein again.
Further alternatively, as shown in fig. 4, in a scenario of terminal audio output, the first USB converter 302 may be further configured to receive digital audio data in a set format output by the application processor, and convert the received digital audio data in the set format into a USB differential signal;
in a scenario of terminal audio input, the first USB converter 302 may be further configured to convert the USB differential signal received by the Type-C interface 202 into digital audio data in a set format, and output the digital audio data in the set format to an application processor;
wherein the application processor is used for controlling the input and output of the media audio of the terminal.
That is to say, in the scenario of terminal audio output, the I2S signal output by the application processor may be directly converted into a USB differential signal through the audio bridge chip, and then output through the Type-C interface 202; in the scenario of terminal audio input, the audio bridge chip may convert the USB differential signal received by the Type-C interface 202 into an I2S signal, and directly output the signal to the application processor.
Also optionally, as shown in fig. 4, in a scenario of terminal audio output, the application processor may also output media audio to the first codec 301, where the first codec 301 determines that the received signal is a digital audio signal, and then directly outputs the received digital audio signal to the first USB converter 302, and the first USB converter 302 converts the received digital audio data into a USB differential signal; in the scenario of terminal audio input, the first codec 301 may directly send the digital audio signal output by the first USB converter 302 to an application processor. That is, for the input and output of the media audio, the interconversion between the I2S signal and the USB differential signal can be performed only by the audio bridge chip without passing through the codec; the input and output of the media audio may also be through a codec, which may perform only a forwarding operation without any processing when it is determined that the media audio (digital audio signal) is received.
Alternatively, as shown in fig. 5, the audio conversion apparatus 102 may include: a Type-C plug 501, a second USB converter 502, a second codec 503, and an analog audio interface 504, wherein:
in a scene of terminal audio output, the Type-C plug 501 may be configured to receive a USB differential signal output by the Type-C interface 202; the second USB converter 502 may be configured to convert the received USB differential signal into digital audio data with a set format; the second codec 503 is configured to convert the digital audio data in the set format converted by the second USB converter 502 into an analog audio signal; the analog audio interface 504 is operable to output an analog audio signal;
in the scenario of terminal audio input, the analog audio interface 504 may be configured to receive an analog audio signal; the second codec 503 is configured to convert the received analog audio signal into digital audio data with a set format; the second USB converter 502 may be configured to convert the received digital audio data with a set format into a USB differential signal; the Type-C plug 501 is configured to output a USB differential signal to the Type-C interface 202.
Alternatively, the formatted digital audio data may specifically be digital audio data based on the I2S bus standard, the second USB converter 502 may be an audio bridge chip, and the second codec 503 may be a codec chip. That is to say, in a scenario of terminal audio output, the audio conversion device 102 may first receive a USB differential signal output by the Type-C interface 202 of the terminal through the Type-C plug 501, convert the USB differential signal into an I2S signal through the audio bridge chip, convert the I2S signal into an analog audio signal through the codec chip, and finally output the analog audio signal to a device such as a sound device or an earphone through the analog audio interface 504 for playing; in the scenario of audio input of the terminal, the audio conversion device 102 may first convert the analog audio signal input by the analog audio interface 504 into an I2S signal through a codec chip, convert the I2S signal into a USB differential signal through an audio bridge chip, and finally transmit the USB differential signal to the terminal through the Type-C plug 501 and the Type-C interface 202 of the terminal.
It should be noted that the second codec 503 and the second USB converter 502 can also be implemented by other logic chips with the same function; in addition, the second codec 503 and the second USB converter 502 may be integrated into separate logic chips, or may be integrated into the same logic chip, and this embodiment is not limited in any way.
Also optionally, as shown in fig. 6, the audio conversion device 102 may further include: the Type-C plug 501, the second USB converter 502, and the second codec 503 further include a speaker 604 or a microphone 605, wherein:
in a scene of terminal audio output, the Type-C plug 501 may be configured to receive a USB differential signal output by the Type-C interface 202; the second USB converter 502 may be configured to convert the received USB differential signal into digital audio data with a set format; the second codec 503 is configured to convert the digital audio data in the set format converted by the second USB converter 502 into an analog audio signal; the speaker 604 is configured to play the analog audio signal output by the second codec 503;
in a terminal audio input scene, the microphone 605 may be configured to convert a collected voice signal into an analog audio signal; the second codec 503 is configured to convert the received analog audio signal into digital audio data with a set format; the second USB converter 502 may be configured to convert the received digital audio data with a set format into a USB differential signal; the Type-C plug 501 is configured to output a USB differential signal to the Type-C interface 202.
That is, the audio conversion device 102 provided in this embodiment may be configured as an audio conversion adapter with an earphone analog interface (analog audio interface 504), so that an existing analog earphone can communicate with a terminal based on a Type-C interface through the audio conversion adapter; the audio conversion device 102 may also be configured as a novel Type-C interface earphone with analog audio signal playing and/or collecting functions, which is not limited herein.
Further optionally, the second codec 503 may be further configured to perform plug detection and/or key detection, output the obtained plug signal and/or key signal to the second USB converter 502, and convert the plug signal and/or key signal into a USB differential signal by the second USB converter 502 to be transmitted to the terminal through the Type-C interface 202. The execution manner of the plug detection and/or the key detection of the second codec 503 is similar to that of the prior art, and is not described herein again.
The following will describe in detail the audio input/output system based on the Type-C interface provided in this embodiment by taking different usage scenarios as examples:
example one:
the audio input/output device provided by the embodiment is integrated with a certain terminal, and the terminal is connected with an external audio conversion device through a Type-C interface. The terminal performs the local call, for example, the call audio output process may be:
step A1: the baseband chip outputs the received analog audio signal to a codec of the audio input/output device;
step A2: a codec of the audio input/output device converts the acquired analog audio signal into an I2S signal, and outputs the converted I2S signal to an audio bridge chip of the audio input/output device;
step A3: an audio bridging chip of the audio input/output device converts the I2S signal into a USB differential signal;
step A4: outputting the USB differential signal to audio conversion equipment through a Type-C interface;
step A5: an audio bridging chip of the audio conversion equipment converts the acquired USB differential signal into an I2S signal and outputs the signal to a codec of the audio conversion equipment;
step A6: the codec of the audio conversion device converts the I2S signal into an analog audio signal and transmits the analog audio signal to a loudspeaker of the audio conversion device;
step A7: and a loudspeaker of the audio conversion equipment plays the acquired analog audio signal.
Example two:
the audio input/output device provided by the embodiment is integrated with a certain terminal, and the terminal is connected with an external audio conversion device through a Type-C interface. The terminal performs a network call, for example, the input process of WeChat voice (media audio) may be:
step B1: a microphone of the audio conversion equipment collects sound signals to obtain analog audio signals;
step B2: the codec of the audio conversion equipment converts the acquired analog audio signal into an I2S signal and outputs the signal to an audio bridging chip of the audio conversion equipment;
step B3: an audio bridging chip of the audio conversion device converts the I2S signal into a USB differential signal;
step B4: inputting the USB differential signal to audio input/output equipment through a Type-C interface;
step B5: the audio bridging chip of the audio input/output device converts the USB differential signal into an I2S signal and outputs the signal to the application processor;
step B6: and the application processor performs WeChat voice input according to the acquired I2S signal.
In summary, the audio input/output system based on the Type-C interface provided in the embodiment of the present invention can convert the obtained analog audio signal into a digital signal that can be transmitted by the Type-C interface, and output the converted digital signal through the Type-C interface; and/or acquiring a digital signal through a Type-C interface, and converting the received digital signal into an analog audio signal; that is to say, the accessible converts analog audio signal into digital signal, realizes the input and the output of the conversation audio frequency based on Type-C interface, need not to expand the analog audio frequency passageway in current Type-C interface, and hardware design is simple, and still can avoid analog audio signal to receive the relatively poor problem of conversation audio frequency tone quality that noise interference leads to.
Example two:
based on the same inventive concept, the second embodiment of the invention provides an audio input/output device based on a Type-C interface, which can be integrated in a terminal such as a smart phone, a tablet computer, a smart watch, and the like, and is used for inputting and outputting audio of the terminal. Specifically, as shown in fig. 2, which is a schematic structural diagram of the apparatus according to the second embodiment of the present invention, the apparatus may include an audio signal processing unit 201 and a Type-C interface 202, where:
the audio signal processing unit 201 is configured to acquire an analog audio signal and convert the acquired analog audio signal into a digital signal that can be transmitted by a Type-C interface;
the Type-C interface is configured to output a digital signal obtained by conversion by the audio signal processing unit 201; and/or
The Type-C interface is used for receiving digital signals;
the audio signal processing unit 201 is configured to convert the received digital signal into an analog audio signal.
Alternatively, the audio signal processing unit 201 may include: a codec and a USB converter, wherein:
the codec is used for receiving the analog audio signal output by the baseband chip, converting the received analog audio signal into digital audio data with a set format and outputting the digital audio data with the set format to the USB converter;
the USB converter is used for converting the received digital audio data with the set format into a USB differential signal; and/or
The USB converter is used for converting the USB differential signal received by the Type-C interface into digital audio data with a set format;
the codec is used for receiving the digital audio data with the set format output by the USB converter, converting the digital audio data with the set format into an analog audio signal and outputting the analog audio signal to the baseband chip;
the baseband chip is used for controlling the input and the output of the call audio of the terminal.
Further optionally, the USB converter may be further configured to receive digital audio data in a set format output by the application processor, and convert the received digital audio data in the set format into a USB differential signal; and/or
The USB converter can also be used for converting the USB differential signal received by the Type-C interface into digital audio data with a set format and outputting the digital audio data with the set format to the application processor;
wherein the application processor is used for controlling the input and output of the media audio of the terminal.
For specific functions of the audio input/output device based on the Type-C interface provided in this embodiment, reference may be made to the description of the audio input/output device 201 based on the Type-C interface in the first embodiment, and details of this embodiment are not repeated herein.
In summary, the audio input/output device based on the Type-C interface provided in the embodiment of the present invention can convert the obtained analog audio signal into a digital signal that can be transmitted by the Type-C interface, and output the converted digital signal through the Type-C interface; and/or acquiring a digital signal through a Type-C interface, and converting the received digital signal into an analog audio signal; that is to say, the accessible converts analog audio signal into digital signal, realizes the input and the output of the conversation audio frequency based on Type-C interface, need not to expand the analog audio frequency passageway in current Type-C interface, and hardware design is simple, and still can avoid analog audio signal to receive the relatively poor problem of conversation audio frequency tone quality that noise interference leads to.
Example three:
based on the same inventive concept, the third embodiment of the invention provides an audio input/output method based on a Type-C interface, which is applicable to audio input and output control of terminals such as smart phones, tablet computers, smart watches and the like. The implementation subject of the method can be an audio input/output device based on a Type-C interface integrated in the terminal. Specifically, as shown in fig. 7, which is a flowchart of steps of the method according to the third embodiment of the present invention, the method may include:
step 701: acquiring an analog audio signal;
step 702: converting the acquired analog audio signal into a digital signal which can be transmitted by a Type-C interface;
step 703: and outputting the converted digital signal through a Type-C interface.
As shown in fig. 8, the method in the third embodiment of the present invention may also include:
step 801: acquiring a digital signal through a Type-C interface;
step 802: converting the received digital signal into an analog audio signal;
step 803: and outputting the converted analog audio signal.
Optionally, converting the acquired analog audio signal into a digital signal that can be transmitted by the Type-C interface may specifically include:
converting the obtained analog audio signal output by the baseband chip into digital audio data with a set format;
converting the digital audio data with a set format into a USB differential signal;
also optionally, converting the received digital signal into an analog audio signal, and outputting the converted analog audio signal may specifically include:
converting the USB differential signal received by the Type-C interface into digital audio data with a set format;
converting the digital audio data with the set format into an analog audio signal;
outputting the analog audio signal obtained by conversion to a baseband chip;
the baseband chip is used for controlling the input and the output of the call audio of the terminal where the Type-C interface is located.
Optionally, the method may further comprise:
acquiring digital audio data with a set format output by an application processor;
converting the acquired digital audio data with the set format into a USB differential signal; and/or
Converting the USB differential signal received by the Type-C interface into digital audio data with a set format;
outputting the digital audio data with the set format to an application processor;
the application processor is used for controlling the input and output of the media audio of the terminal where the Type-C interface is located.
In summary, the audio input/output method based on the Type-C interface provided in the embodiment of the present invention can convert the obtained analog audio signal into a digital signal that can be transmitted by the Type-C interface, and output the converted digital signal through the Type-C interface; and/or acquiring a digital signal through a Type-C interface, and converting the received digital signal into an analog audio signal; that is to say, the accessible converts analog audio signal into digital signal, realizes the input and the output of the conversation audio frequency based on Type-C interface, need not to expand the analog audio frequency passageway in current Type-C interface, and hardware design is simple, and still can avoid analog audio signal to receive the relatively poor problem of conversation audio frequency tone quality that noise interference leads to.
It is to be understood that any number of elements in the figures and descriptions are presented by way of example and not limitation, and that any nomenclature is used for distinction and not limitation.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus (device), or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (devices) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. An audio input/output system based on a Type-C interface, comprising an audio input/output device and an audio conversion device, wherein:
the audio input/output equipment is used for converting the acquired analog audio signal into a digital signal which can be transmitted by a Type-C interface and outputting the digital signal through the Type-C interface;
the audio conversion equipment is used for receiving the digital signal output by the Type-C interface and converting the received digital signal into an analog audio signal; and
the audio conversion equipment is used for converting the acquired analog audio signals into digital signals which can be transmitted by a Type-C interface and outputting the digital signals to the audio input/output equipment through the Type-C interface;
the audio input/output equipment is used for receiving the digital signals output by the Type-C interface and converting the received digital signals into analog audio signals;
wherein the audio input/output device includes: the device comprises an audio signal processing unit and a Type-C interface;
the audio signal processing unit is used for acquiring an analog audio signal and converting the acquired analog audio signal into a digital signal which can be transmitted by the Type-C interface;
the Type-C interface is used for outputting the digital signal converted by the audio signal processing unit; and
the Type-C interface is used for receiving digital signals;
the audio signal processing unit is used for converting the digital signals received by the Type-C interface into analog audio signals;
the audio signal processing unit includes: a first codec and a first USB converter, wherein:
the first codec is used for receiving the analog audio signal output by the baseband chip, converting the received analog audio signal into digital audio data with a set format, and outputting the digital audio data with the set format to the first USB converter;
the first USB converter is used for converting the received digital audio data with the set format into a USB differential signal; and
the first USB converter is used for converting the USB differential signal received by the Type-C interface into digital audio data with a set format;
the first codec is used for receiving the digital audio data with the set format output by the first USB converter, converting the digital audio data with the set format into an analog audio signal and outputting the analog audio signal to the baseband chip;
the baseband chip is used for controlling the input and the output of the call audio of the terminal.
2. A Type-C interface based audio input/output system according to claim 1,
the first USB converter is also used for receiving the digital audio data with the set format output by the application processor and converting the received digital audio data with the set format into a USB differential signal; and/or
The first USB converter is also used for converting the USB differential signal received by the Type-C interface into digital audio data with a set format and outputting the digital audio data with the set format to the application processor;
wherein the application processor is used for controlling the input and output of the media audio of the terminal.
3. The Type-C interface-based audio input/output system of claim 1, wherein the audio conversion apparatus comprises: Type-C plug, second USB converter, second codec to and analog audio interface, wherein:
the Type-C plug is used for receiving the USB differential signal output by the Type-C interface;
the second USB converter is used for converting the received USB differential signal into digital audio data with a set format;
the second codec is used for converting the digital audio data with the set format converted by the second USB converter into an analog audio signal;
the analog audio interface is used for outputting analog audio signals; and/or
The analog audio interface is used for receiving an analog audio signal;
the second codec is used for converting the received analog audio signal into digital audio data with a set format;
the second USB converter is used for converting the received digital audio data with the set format into a USB differential signal;
the Type-C plug is used for outputting a USB differential signal to the Type-C interface.
4. The Type-C interface-based audio input/output system of claim 1, wherein the audio conversion apparatus comprises: Type-C plug, second USB converter and second codec, audio conversion equipment still includes speaker and/or microphone, wherein:
the Type-C plug is used for receiving the USB differential signal output by the Type-C interface;
the second USB converter is used for converting the received USB differential signal into digital audio data with a set format;
the second codec is used for converting the digital audio data with the set format converted by the second USB converter into an analog audio signal;
the loudspeaker is used for playing the analog audio signal output by the second codec; and/or
The microphone is used for converting the collected voice signals into analog audio signals;
the second codec is used for converting the received analog audio signal into digital audio data with a set format;
the second USB converter is used for converting the received digital audio data with the set format into a USB differential signal;
the Type-C plug is used for outputting a USB differential signal to the Type-C interface.
5. An audio input/output device based on a Type-C interface, comprising an audio signal processing unit and a Type-C interface, wherein:
the audio signal processing unit is used for acquiring an analog audio signal and converting the acquired analog audio signal into a digital signal which can be transmitted by a Type-C interface;
the Type-C interface is used for outputting the digital signal converted by the audio signal processing unit; and
the Type-C interface is used for receiving digital signals;
the audio signal processing unit is used for converting the received digital signal into an analog audio signal;
the audio signal processing unit includes: a codec and a USB converter, wherein:
the codec is used for receiving the analog audio signal output by the baseband chip, converting the received analog audio signal into digital audio data with a set format and outputting the digital audio data with the set format to the USB converter;
the USB converter is used for converting the received digital audio data with the set format into a USB differential signal; and
the USB converter is used for converting the USB differential signal received by the Type-C interface into digital audio data with a set format;
the codec is used for receiving the digital audio data with the set format output by the USB converter, converting the digital audio data with the set format into an analog audio signal and outputting the analog audio signal to the baseband chip;
the baseband chip is used for controlling the input and the output of the call audio of the terminal.
6. The Type-C interface-based audio input/output device of claim 5,
the USB converter is also used for receiving the digital audio data with the set format output by the application processor and converting the received digital audio data with the set format into a USB differential signal; and/or
The USB converter is also used for converting the USB differential signal received by the Type-C interface into digital audio data with a set format and outputting the digital audio data with the set format to the application processor;
wherein the application processor is used for controlling the input and output of the media audio of the terminal.
7. An audio input/output method based on a Type-C interface, the method comprising:
acquiring an analog audio signal;
converting the acquired analog audio signal into a digital signal which can be transmitted by a Type-C interface;
outputting the converted digital signal through a Type-C interface; and/or
Acquiring a digital signal through a Type-C interface;
converting the received digital signal into an analog audio signal;
outputting the analog audio signal obtained by conversion;
wherein, convert the analog audio signal who acquires into the digital signal that can be transmitted by Type-C interface, specifically include:
converting the obtained analog audio signal output by the baseband chip into digital audio data with a set format;
converting the digital audio data with a set format into a USB differential signal;
convert received digital signal into analog audio signal, output the analog audio signal that the conversion obtained specifically includes:
converting the USB differential signal received by the Type-C interface into digital audio data with a set format;
converting the digital audio data with the set format into an analog audio signal;
outputting the analog audio signal obtained by conversion to a baseband chip;
the baseband chip is used for controlling the input and the output of the call audio of the terminal where the Type-C interface is located.
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