CN215818581U - Audio circuit and audio equipment - Google Patents
Audio circuit and audio equipment Download PDFInfo
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- CN215818581U CN215818581U CN202121517591.1U CN202121517591U CN215818581U CN 215818581 U CN215818581 U CN 215818581U CN 202121517591 U CN202121517591 U CN 202121517591U CN 215818581 U CN215818581 U CN 215818581U
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Abstract
The application discloses audio circuit and audio equipment belongs to circuit technical field. The audio circuit includes a first processing module, a second processing module, and a speaker. When the audio circuit works, the first processing module can output the input first audio signal to the loudspeaker and the second processing module respectively. The speaker may play audio according to the first audio signal. The second processing module may perform frequency conversion on the first audio signal to obtain a second audio signal, and transmit the second audio signal. Therefore, the audio circuit can play audio according to the received audio signal and can share the received audio signal to other audio equipment, so that the flexibility of audio playing is improved.
Description
Technical Field
The present application relates to the field of circuit technologies, and in particular, to an audio circuit and an audio device.
Background
Audio equipment (including earphones, sound equipment, and the like) refers to electronic equipment that receives audio signals output by audio output equipment (including computers, mobile phones, and the like) and plays audio according to the audio signals.
In the related art, the audio device may receive an audio signal through a wired connection or a wireless connection, and play the audio.
However, in the related art, the audio device can only play audio according to the received audio signal, and the flexibility of audio playing is low.
SUMMERY OF THE UTILITY MODEL
The application provides an audio circuit and audio equipment can share the audio signal who receives for other audio equipment to promote the flexibility of audio playback. The technical scheme is as follows:
in a first aspect, an audio circuit is provided, comprising: the system comprises a first processing module, a second processing module and a loudspeaker;
the first input end of the first processing module is used for inputting a first audio signal, and the first output end of the first processing module is connected with the input end of the second processing module;
the second output end of the first processing module is connected with the input end of the loudspeaker;
when the first audio signal is input by the first processing module, the first processing module outputs the first audio signal to the second processing module and the loudspeaker respectively;
the second processing module is used for carrying out frequency conversion on the first audio signal to obtain a second audio signal and transmitting the second audio signal.
In this application, an audio circuit includes a first processing module, a second processing module, and a speaker. The first input end of the first processing module is used for inputting a first audio signal. The first output end of the first processing module is connected with the input end of the second processing module. And the second output end of the first processing module is connected with the input end of the loudspeaker. When the audio circuit works, the first processing module can output the input first audio signal to the loudspeaker and the second processing module respectively. The speaker may play audio according to the first audio signal. The second processing module may perform frequency conversion on the first audio signal to obtain a second audio signal, and transmit the second audio signal. Therefore, the audio circuit can play audio according to the received audio signal and can share the received audio signal to other audio equipment, so that the flexibility of audio playing is improved.
Optionally, the audio circuit further comprises: a Bluetooth module;
the output end of the Bluetooth module is connected with the first input end of the first processing module, and the Bluetooth module is used for receiving Bluetooth audio signals transmitted by audio output equipment, processing the Bluetooth audio signals to obtain the first audio signals, and outputting the first audio signals to the first processing module.
Optionally, the first input end of the first processing module is configured to be connected to an audio output device to receive the first audio signal output by the audio output device.
Optionally, the first processing module is further configured to generate a sensing signal when the distance between the audio circuit and the other audio circuits is smaller than a preset distance;
the first processing module inputs the first audio signal, and when the first processing module generates the sensing signal, the first processing module outputs the first audio signal to the second processing module.
Optionally, the first processing module includes: a first antenna unit and a first processing unit;
the first antenna unit is connected with an antenna connecting end of the first processing unit, a first input end of the first processing unit is used for inputting the first audio signal, a first output end of the first processing unit is connected with an input end of the second processing module, and a second output end of the first processing unit is connected with an input end of the loudspeaker;
the first antenna unit generates a sensing signal when the distance between the audio circuit and other audio circuits is smaller than a preset distance, and outputs the sensing signal to the first processing unit;
the first processing unit inputs the first audio signal, and when the first processing unit receives the induction signal, the first processing unit outputs the first audio signal to the second processing module; when the first processing unit inputs the first audio signal, the first processing unit outputs the first audio signal to the loudspeaker.
Optionally, an output end of the second processing module is connected to a second input end of the first processing module, and the second processing module is configured to receive a third audio signal transmitted by another audio circuit and output the third audio signal to the first processing module;
the first processing module does not input the first audio signal, and when the first processing module generates the sensing signal, the first processing module receives the third audio signal and outputs the third audio signal to the loudspeaker.
Optionally, the second processing module is capable of transmitting the second audio signal while receiving the third audio signal.
Optionally, the second processing module includes: two second antenna units and a second processing unit;
the two second antenna units are connected with the antenna connecting end of the second processing unit, the input end of the second processing unit is connected with the first output end of the first processing module, the output end of the second processing unit is connected with the second input end of the first processing module, and the second processing unit is used for performing frequency conversion on the first audio signal to obtain a second audio signal;
one of the two second antenna units is configured to transmit the second audio signal, and the other of the two second antenna units is configured to receive the third audio signal and output the third audio signal to the second processing unit.
Optionally, the audio circuit further comprises: and the output end of the control module is connected with the control end of the second processing module so as to control the second processing module to transmit the second audio signal and/or receive the third audio signal.
In a second aspect, there is provided an audio device comprising an audio circuit as described in the first aspect.
It is understood that the beneficial effects of the second aspect can be referred to the related description of the first aspect, and are not described herein again.
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 description of the embodiments are briefly introduced 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 these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a first audio circuit provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a second audio circuit provided in an embodiment of the present application;
fig. 3 is a schematic structural diagram of a third audio circuit provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of a fourth audio circuit provided in the embodiment of the present application;
fig. 5 is a schematic structural diagram of a fifth audio circuit provided in an embodiment of the present application;
fig. 6 is a schematic structural diagram of a sixth audio circuit provided in an embodiment of the present application;
fig. 7 is a schematic structural diagram of a seventh audio circuit according to an embodiment of the present application.
Wherein, the meanings represented by the reference numerals of the figures are respectively as follows:
10. an audio circuit;
110. a first processing module;
112. a first antenna element;
114. a first processing unit;
120. a second processing module;
122. a second antenna element;
124. a second processing unit;
130. a speaker;
140. a Bluetooth module;
150. a control module;
160. a power supply module;
20. an audio output device.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
It should be understood that reference to "a plurality" in this application means two or more. In the description of the present application, "/" means "or" unless otherwise stated, for example, a/B may mean a or B; "and/or" herein is only an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, for the convenience of clearly describing the technical solutions of the present application, the terms "first", "second", and the like are used to distinguish the same items or similar items having substantially the same functions and actions. Those skilled in the art will appreciate that the terms "first," "second," etc. do not denote any order or quantity, nor do the terms "first," "second," etc. denote any order or importance.
Before explaining the embodiments of the present application in detail, an application scenario of the embodiments of the present application will be described.
Audio equipment (including earphones, sound equipment, and the like) refers to electronic equipment that receives audio signals output by audio output equipment (including computers, mobile phones, and the like) and plays audio according to the audio signals. In the related art, the audio device can only play audio according to the received audio signal, and the flexibility of audio playing is low.
Therefore, the embodiment of the application provides an audio circuit and an audio device, which can share a received audio signal with other audio devices, thereby improving the flexibility of audio playing.
The audio circuit provided in the embodiments of the present application is explained in detail below.
Fig. 1 is a schematic structural diagram of an audio circuit 10 according to an embodiment of the present disclosure. Referring to fig. 1, the audio circuit 10 includes a first processing module 110, a second processing module 120, and a speaker 130.
The first processing module 110 may be an SOC (System on Chip) or the like. The first processing module 110 has a first input, a first output and a second output. The first input terminal of the first processing module 110 is used for inputting an audio signal. For convenience of description, the audio signal input by the first processing module 110 is referred to as a "first audio signal". After receiving the first audio signal, the first processing module 110 may output the first audio signal from the first output terminal and the second output terminal.
The second processing module 120 may be an SOC or the like. The input end of the second processing module 120 is connected to the first output end of the first processing module 110, so that the first audio signal output by the first output end of the first processing module 110 can be output to the second processing module 120. After receiving the first audio signal, the second processing module 120 may perform frequency conversion on the first audio signal. For convenience of description, an audio signal obtained by frequency-converting the first audio signal by the second processing module 120 is referred to as a second audio signal. The second processing module 120 may transmit the second audio signal by wireless transmission. Generally, the second audio signal has a fixed frequency, which is referred to as a "first frequency" for convenience of description, and the first frequency may be 5.8 GHz.
In operation of the audio circuit 10, the first processing module 110 may receive a first audio signal from the audio output device 20 and output the first audio signal to the speaker 130 and the second processing module 120, respectively. Speaker 130 may play audio according to the first audio signal. The second processing module 120 may perform frequency conversion on the first audio signal to obtain a second audio signal, and transmit the second audio signal. Thus, the audio circuit 10 can play audio according to the received audio signal, and can also share the received audio signal with other audio devices, thereby improving the flexibility of audio playing.
In some embodiments, as shown in fig. 2, the audio circuit 10 may also include a bluetooth module 140.
The bluetooth module 140 is configured to receive a bluetooth audio signal output by the audio output device 20, and process the bluetooth audio signal to obtain a first audio signal. The bluetooth module 140 has an output end, and the output end of the bluetooth module 140 is connected to the first input end of the first processing module 110, so that the bluetooth module 140 outputs the first audio signal to the first input end of the first processing module 110 after obtaining the first audio signal. Generally, the bluetooth audio signal has a fixed frequency, and for convenience of description, the frequency of the bluetooth audio signal is referred to as a "second frequency" which is different in value from the first frequency, and for example, the second frequency may be 2.4 GHz.
In some embodiments, the bluetooth module 140 may include an antenna unit and a bluetooth unit (not shown), wherein the antenna unit is connected to an antenna connection terminal of the bluetooth unit. The antenna unit is used for receiving the Bluetooth audio signal of the second frequency, converting the Bluetooth audio signal into an electric signal and outputting the electric signal to the Bluetooth unit. The Bluetooth unit processes the electric signal to obtain a first audio signal. The output terminal of the bluetooth unit is connected to the first input terminal of the first processing module 110, so as to output the first audio signal to the first processing module 110.
In other embodiments, as shown in fig. 3, the first input terminal of the first processing module 110 is configured to be connected to the audio output device 20, so as to receive the first audio signal directly output by the audio output device 20 to the first processing module 110.
Specifically, the first input of the first processing module 110 may be a wired connection, such as a 3.5 mm audio connector. The 3.5 mm audio connector is an audio plug with a diameter of 3.5 mm and used for being inserted into a mobile phone or a computer. The first input terminal of the first processing module 110 may also be a USB (Universal Serial Bus) audio connector. The first input terminal of the first processing module 110 is used for directly connecting with the audio output device 20 by wire, so as to receive the first audio signal directly output by the audio output device 20.
In some embodiments, the first processing module 110 is further configured to generate the sensing signal when the distance between the audio circuit 10 and the other audio circuit 10 is smaller than a preset distance. The other audio circuit 10 may be another audio circuit 10 provided in the embodiments of the present application.
Specifically, after receiving the first audio signal, the audio circuit 10 may convert the first audio signal into a second audio signal and transmit the second audio signal to be shared with other audio circuits 10. The audio circuit 10 may convert the first audio signal into a second audio signal when generating the sensing signal. The sensing signal is generated by the approach of the other audio circuit 10 to the audio circuit 10, that is, the audio circuit 10 converts the first audio signal into the second audio signal when detecting the approach of the other audio circuit 10.
The first processing module 110 in the audio circuit 10 is configured to detect whether another audio circuit 10 is close to the audio circuit 10, and generate a sensing signal when the distance between the audio circuit 10 and the other audio circuit 10 is smaller than a preset distance. The predetermined distance here may be, for example, one or two meters. The second processing module 120 in the audio circuit 10 is configured to convert the first audio signal into a second audio signal. Thus, when the first processing module 110 inputs the first audio signal and the first processing module 110 generates the sensing signal, the first processing module 110 outputs the first audio signal to the second processing module 120. The second processing module 120 converts the first audio signal into a second audio signal and transmits the second audio signal, so that the second audio signal can be shared by other audio circuits 10.
When the audio circuit 10 generates the sensing signal, the frequency of the first audio signal is converted to obtain a second audio signal, and the second audio signal is transmitted, so that unnecessary power consumption of the audio circuit 10 can be reduced.
In some specific embodiments, as shown in fig. 4, the first processing module 110 may include a first antenna element 112 and a first processing element 114.
The first antenna element 112 is used to detect whether other audio circuits 10 are close. Specifically, the first antenna unit 112 generates the sensing signal when the distance between the audio circuit 10 and the other audio circuit 10 is smaller than a preset distance.
The first processing unit 114 has an antenna connection. The first antenna unit 112 is connected to an antenna connection terminal of the first processing unit 114, so that when the first antenna unit 112 generates a sensing signal, the sensing signal is output to the first processing unit 114. The first processing unit 114 also has a first input, a first output and a second output. A first input terminal of the first processing unit 114 is a first input terminal of the first processing module 110, and is used for inputting a first audio signal. A first output end of the first processing unit 114 is a first output end of the first processing module 110, and is used for connecting with an input end of the second processing module 120, so that when the first processing unit 114 inputs the first audio signal and the first processing unit 114 receives the sensing signal, the first processing unit 114 outputs the first audio signal to the second processing module 120. A second output terminal of the first processing unit 114 is a second output terminal of the first processing module 110, and is used for being connected to an input terminal of the speaker 130, so that when the first processing unit 114 inputs the first audio signal, the first processing unit 114 outputs the first audio signal to the speaker 130.
The process of generating the sensing signal by the first processing module 110 is described below in two different implementations.
In a first possible implementation manner, when the audio circuit 10 is in operation, the first processing unit 114 inputs a radio frequency signal into the first antenna unit 112. When the distance between the audio circuit 10 and the other audio circuits 10 is smaller than the preset distance, the frequencies of the radio frequency signals in the first antenna units 112 of the audio circuit 10 and the other audio circuits 10 may change through electromagnetic induction. The change of the radio frequency signal is an induction signal. After receiving the sensing signal, the first processing unit 114 may further amplify the sensing signal.
In a second possible implementation manner, the first processing unit 114 may input a radio frequency signal into the first antenna unit 112, so that the first antenna unit 112 transmits the radio frequency signal; the first antenna element 112 may also receive radio frequency signals. In operation of the audio circuit 10, the first antenna element 112 continuously and alternately transmits and receives radio frequency signals. When the distance between the audio circuit 10 and the other audio circuits 10 is smaller than the preset distance, the first antenna unit 112 in the audio circuit 10 receives the radio frequency signal, and the radio frequency signal is the sensing signal. After receiving the sensing signal, the first processing unit 114 may further amplify the sensing signal.
Generally, the rf signal input to the first antenna unit 112 by the first processing unit 114 has a fixed frequency, which is called a "third frequency", and the value of the third frequency is different from that of the second frequency and is different from that of the first frequency, for example, the third frequency may be 2.3 MHz.
In some embodiments, as shown in fig. 5, the second processing module 120 also has an output and the first processing module 110 also has a second input. An output of the second processing module 120 is connected to a second input of the first processing module 110. The second processing module 120 may also receive a third audio signal transmitted by another audio circuit 10 and output the third audio signal to the first processing module 110. When the first processing module 110 does not input the first audio signal and the first processing module 110 generates the sensing signal, the first processing module 110 receives the third audio signal and outputs the third audio signal to the speaker 130.
Specifically, in the above embodiment, when the first processing module 110 inputs the first audio signal and generates the sensing signal, the first processing module 110 outputs the first audio signal to the second processing module 120, so that the second processing module 120 can emit the second audio signal. In other words, when the audio circuit 10 is connected to the audio output device 20 so as to receive the audio signal output from the audio output device 20, the second audio signal may be transmitted when the other audio circuit 10 is close. In this embodiment, the second processing module 120 in the audio circuit 10 may also receive second audio signals transmitted by other audio circuits 10. For convenience of description, the audio signal transmitted by the other audio circuit 10 received by the second processing module 120 is referred to as a "third audio signal". After receiving the third audio signal, the second processing module 120 may output the third audio signal to the first processing module 110.
When the first processing module 110 does not input the first audio signal, it indicates that the first processing module 110 does not receive the audio signal from the audio output device 20, and at this time, the first processing module 110 may receive the third audio signal output by the second processing module 120 and output the third audio signal to the speaker 130 when generating the sensing signal. At this time, the speaker 130 may play audio according to the third audio signal.
In some embodiments, as shown in fig. 6, the second processing module 120 is capable of transmitting the second audio signal while receiving the third audio signal. That is, when the first audio signal is not input to the first processing module 110, the second processing module 120 may transmit the audio signal while receiving the audio signal. Following the above description, the audio signal transmitted by the other audio circuit 10 and received by the second processing module 120 is referred to as a third audio signal; the audio signal transmitted by the second processing module 120 is referred to as a second audio signal.
In some embodiments, as also shown in fig. 6, the second processing module 120 may include two second antenna elements 122 and one second processing element 124.
One of the two second antenna elements 122 may be used to receive a third audio signal and the other of the two second antenna elements 122 may be used to transmit a second audio signal.
The second processing unit 124 has two antenna connection terminals, and each of the two second antenna units 122 is connected to one antenna connection terminal, so that the second processing unit 124 can receive the third audio signal and transmit the second audio signal through the two second antenna units 122. The second processing unit 124 also has an input unit and an output unit. An input of the second processing unit 124, i.e. an input of the second processing module 120, is adapted to be connected to a first output of the first processing module 110. The output of the second processing unit 124, i.e. the output of the second processing module 120, is used for the connection of the second input of the first processing module 110.
When the first processing module 110 has a first audio signal input and generates a sensing signal, the first processing module 110 outputs the first audio signal to the speaker 130, so that the speaker 130 plays audio according to the first audio signal. Meanwhile, the first processing module 110 outputs the first audio signal to the second processing unit 124, and the second processing unit 124 performs frequency conversion on the first audio signal to obtain a second audio signal, and outputs the second audio signal to the second antenna unit 122, so as to transmit the second audio signal.
When the first processing module 110 has no first audio signal input and generates the sensing signal, one of the two second antenna units 122 receives the third audio signal and outputs the third audio signal to the second processing unit 124. The second processing unit 124 outputs the third audio signal to the first processing unit 114. After receiving the third audio signal, the first processing unit 114 outputs the third audio signal to the speaker 130, so that the speaker 130 plays audio according to the third audio signal. Meanwhile, after receiving the third audio signal, the second processing unit 124 also outputs the third audio signal from the other of the two second antenna units 122. The audio signal output by the other of the two second antenna elements 122 is referred to as a second audio signal.
In some embodiments, as shown in fig. 6, the audio circuit 10 further includes a control module 150. The output of the control module 150 is connected to the control terminal of the second processing module 120. The control module 150 may output a first control signal for controlling the second processing module 120 to transmit the second audio signal or/and to receive the third audio signal. In some embodiments, when the audio circuit 10 further includes the bluetooth module 140, the bluetooth module 140 may be connected with the control module 150. When the bluetooth module 140 receives the bluetooth audio signal, the control module 150 outputs a first control signal, which controls the second processing module 120 not to operate or only to transmit the second audio signal. When the bluetooth module 140 does not receive the bluetooth audio signal, the control module 150 outputs a first control signal, and the first control signal controls the second processing module 120 to receive the third audio signal, or controls the second processing module 120 to receive the third audio signal and transmit the second audio signal.
In some embodiments, as shown in fig. 7, the audio circuit 10 further includes a power module 160. The power module 160 may be connected to the bluetooth module 140, the first processing unit 114, the second processing unit 124 and the control module 150 to output power to the bluetooth module 140, the first processing unit 114, the second processing unit 124 and the control module 150. Meanwhile, the control module 150 may also be connected with the power module 160 to output a second control signal to the power module 160. The second control signal is used to control the power module 160 to output power or stop outputting power.
In some embodiments, the bluetooth unit in the bluetooth module 140 may be a chip with model JX 225. The JX225 chip is an SOC having 46 pins. Pin 1 of the JX225 chip may be used to connect the antenna unit, pins 9, 16, 21, and 22 may be connected to the power module 160, pin 2 may be connected to the ground, and pins 41, 42, 43, and 44 may be connected to the first processing module 110.
The first processing unit 114 in the first processing module 110 may be a chip of model WM 8758B. WM8758B is an SOC with 32 pins. Pin No. 1, pin No. 2, pin No. 4 and pin No. 5 of the WM8758B chip can be connected to the bluetooth unit, pin No. 31 can be connected to the power module 160, pin No. 23 and pin No. 25 can be connected to the speaker 130, pin No. 3 can be connected to the first antenna unit 112, and pin No. 16 and pin No. 17 can be connected to the second processing module 120.
The second processing unit 124 in the second processing module 120 may be a chip of model JX 242B. The JX242B chip is an SOC having 42 pins. Pin 1 and pin 42 of the JX242B chip may be connected to two second antenna elements 122, pin 2 and pin 3 may be grounded, pin 4 may be connected to the power module 160, and pin 40 may also be connected to the power module 160 for supplying power to the second antenna elements 122.
The control module 150 may be a chip of model JX5822-SS0P 20. Speaker 130 may include a cascaded power amplifier and horn.
An application scenario of the audio circuit 10 is described below with reference to fig. 7. In this application scenario, the audio circuit 10 of the embodiment of the present application is included, and the audio circuit 10-1, the audio circuit 10-2, and the audio circuit 10-3 are respectively included.
For the audio circuit 10-1:
the audio circuit 10-1 is configured to be connected to the audio output device 20 to receive an audio signal output by the audio output device 20. In one aspect, the bluetooth module 140 of the audio circuit 10-1 may be connected to the audio output device 20, such that the bluetooth module 140 receives the bluetooth audio signal output by the audio output device 20 and obtains the first audio signal accordingly. The bluetooth module 140 obtains the first audio signal and outputs the first audio signal to the first processing unit 114. On the other hand, the first processing unit 114 of the audio circuit 10-1 may also be directly wired to the audio output device 20, so as to receive the first audio signal output by the audio output device 20 to the first processing unit 114 in a wired manner.
The first processing unit 114 receives the first audio signal and outputs the first audio signal to the speaker 130. Speaker 130 plays audio according to the first audio signal.
When the distance between the audio circuit 10-2 and the audio circuit 10-1 is less than the predetermined distance, a sensing signal is generated in the first antenna unit 112 of the audio circuit 10-1. At this time, the first processing unit 114 of the audio circuit 10-1 receives the sensing signal and outputs the first audio signal to the second processing unit 124. The second processing unit 124 obtains a second audio signal according to the first audio signal, and transmits the second audio signal from the second antenna unit 122.
For audio circuit 10-2:
while the audio circuit 10-1 is transmitting the second audio signal, the audio circuit 10-2 may receive the audio signal transmitted by the audio circuit 10-1, and the audio signal transmitted by the audio circuit 10-1 received by the audio circuit 10-2 is referred to as a third audio signal. The second antenna unit 122 of the audio circuit 10-2 may receive the third audio signal and output the third audio signal to the second processing unit 124 of the audio circuit 10-2. The second processing unit 124 of the audio circuit 10-2 may output the third audio signal to the first processing unit 114.
When the distance between the audio circuit 10-2 and the audio circuit 10-1 is less than the predetermined distance, the first antenna unit 112 of the audio circuit 10-2 generates a sensing signal. At this time, the first processing unit 114 of the audio circuit 10-2 receives the sensing signal, and since the first processing unit 114 of the audio circuit 10-2 does not receive the first audio signal, the first processing unit 114 of the audio circuit 10-2 receives the third audio signal and outputs the third audio signal to the speaker 130. Speaker 130 plays audio according to the third audio signal. At this time, the audio played by the audio circuit 10-2 is shared by the audio circuit 10-1, and the audio played by the audio circuit 10-2 is the same as the audio played by the audio circuit 10-1.
When the second processing unit 124 of the audio circuit 10-2 receives the third audio signal, the third audio signal may be transmitted through the second antenna unit 122. The audio signal transmitted by the second antenna element 122 of the audio circuit 10-2 is also referred to as a "second audio signal".
For audio circuit 10-3:
while the audio circuit 10-2 is transmitting the second audio signal, the audio circuit 10-3 may receive the audio signal transmitted by the audio circuit 10-2, and the audio signal transmitted by the audio circuit 10-2 received by the audio circuit 10-3 is also referred to as a third audio signal. The second antenna unit 122 of the audio circuit 10-3 may receive the third audio signal and output the third audio signal to the second processing unit 124 of the audio circuit 10-3. The second processing unit 124 of the audio circuit 10-3 may output the third audio signal to the first processing unit 114.
When the distance between the audio circuit 10-3 and the audio circuit 10-2 is less than the predetermined distance, the first antenna unit 112 of the audio circuit 10-2 generates a sensing signal. At this time, the first processing unit 114 of the audio circuit 10-3 receives the sensing signal, and since the first processing unit 114 of the audio circuit 10-3 does not receive the first audio signal, the first processing unit 114 of the audio circuit 10-3 receives the third audio signal and outputs the third audio signal to the speaker 130. Speaker 130 plays audio according to the third audio signal. At this time, the audio played by the audio circuit 10-3 is shared by the audio circuit 10-2, and the audio played by the audio circuit 10-3 is the same as the audio played by the audio circuit 10-2 and the audio played by the audio circuit 10-1.
In the working process of the audio circuit 10-1, the audio circuit 10-2, and the audio circuit 10-3, the control module 150 in each audio circuit 10 can control the second processing unit 124 to work, which is not described again.
In the embodiment of the present application, the audio circuit 10 includes a first processing module 110, a second processing module 120, and a speaker 130. A first input of the first processing module 110 is for inputting a first audio signal. A first output of the first processing module 110 is connected to an input of the second processing module 120. A second output of the first processing module 110 is connected to an input of a speaker 130. In operation of the audio circuit 10, the first processing module 110 may output the input first audio signal to the speaker 130 and the second processing module 120, respectively. Speaker 130 may play audio according to the first audio signal. The second processing module 120 may perform frequency conversion on the first audio signal to obtain a second audio signal, and transmit the second audio signal. Thus, the audio circuit 10 can play audio according to the received audio signal, and can also share the received audio signal with other audio devices, thereby improving the flexibility of audio playing.
When the audio circuit 10 generates the sensing signal, the frequency of the first audio signal is converted to obtain a second audio signal, and the second audio signal is transmitted, so that unnecessary power consumption of the audio circuit 10 can be reduced.
The audio circuit 10 may implement a cellular connection. That is, after one audio circuit 10 is connected to the audio output device 20, a plurality of audio circuits 10 can be connected to each other, thereby avoiding the trouble of frequent switching of the audio output device 20 by repeating pairing. After the audio circuits 10 are connected with each other, the same music can be played, so that the requirements of surround sound can be met by adjusting the positions of the audio circuits 10. In this way, the flexibility and entertainment of the audio circuit 10 can be enhanced.
The embodiment of the present application further provides an audio device, which includes the audio circuit 10 in any one of the above embodiments.
Specifically, the audio circuit 10 includes a first processing module 110, a second processing module 120, and a speaker 130. A first input terminal of the first processing module 110 is used for inputting a first audio signal, and a first output terminal of the first processing module 110 is connected to an input terminal of the second processing module 120. A second output of the first processing module 110 is connected to an input of a speaker 130. When the first processing module 110 inputs the first audio signal, the first processing module 110 outputs the first audio signal to the second processing module 120 and the speaker 130, respectively. The second processing module 120 is configured to perform frequency conversion on the first audio signal to obtain a second audio signal, and transmit the second audio signal.
Optionally, the audio circuit 10 further comprises: a bluetooth module 140. The output end of the bluetooth module 140 is connected to the first input end of the first processing module 110, and the bluetooth module 140 is configured to receive a bluetooth audio signal transmitted by the audio output device 20, process the bluetooth audio signal to obtain a first audio signal, and output the first audio signal to the first processing module 110.
Optionally, the first input terminal of the first processing module 110 is configured to be connected to the audio output device 20 to receive a first audio signal output by the audio output device 20.
Optionally, the first processing module 110 is further configured to generate a sensing signal when the distance between the audio circuit 10 and the other audio circuit 10 is smaller than a preset distance. When the first processing module 110 inputs the first audio signal and the first processing module 110 generates the sensing signal, the first processing module 110 outputs the first audio signal to the second processing module 120.
Optionally, the first processing module 110 includes: a first antenna element 112 and a first processing element 114. The first antenna unit 112 is connected to an antenna connection end of the first processing unit 114, a first input end of the first processing unit 114 is used for inputting a first audio signal, a first output end of the first processing unit 114 is connected to an input end of the second processing module 120, and a second output end of the first processing unit 114 is connected to an input end of the speaker 130. The first antenna unit 112 generates a sensing signal when the distance between the audio circuit 10 and the other audio circuit 10 is smaller than a preset distance, and outputs the sensing signal to the first processing unit 114. The first processing unit 114 inputs the first audio signal, and when the first processing unit 114 receives the sensing signal, the first processing unit 114 outputs the first audio signal to the second processing module 120. When the first processing unit 114 inputs the first audio signal, the first processing unit 114 outputs the first audio signal to the speaker 130.
Optionally, an output end of the second processing module 120 is connected to a second input end of the first processing module 110, and the second processing module 120 is configured to receive a third audio signal transmitted by another audio circuit 10 and output the third audio signal to the first processing module 110. When the first processing module 110 does not input the first audio signal and the first processing module 110 generates the sensing signal, the first processing module 110 receives the third audio signal and outputs the third audio signal to the speaker 130.
Optionally, the second processing module 120 can transmit the second audio signal while receiving the third audio signal.
Optionally, the second processing module 120 includes: two second antenna elements 122 and a second processing element 124. The two second antenna units 122 are both connected to the antenna connection end of the second processing unit 124, the input end of the second processing unit 124 is connected to the first output end of the first processing module 110, the output end of the second processing unit 124 is connected to the second input end of the first processing module 110, and the second processing unit 124 is configured to perform frequency conversion on the first audio signal to obtain a second audio signal. One of the two second antenna units 122 is used for transmitting the second audio signal, and the other second antenna unit 122 is used for receiving the third audio signal and outputting the third audio signal to the second processing unit 124.
Optionally, the audio circuit 10 further comprises: and the output end of the control module 150 is connected to the control end of the second processing module 120 to control the second processing module 120 to transmit the second audio signal and/or receive the third audio signal.
In an embodiment of the present application, an audio device comprises the audio circuit 10 as in any of the embodiments described above. The audio circuit 10 includes a first processing module 110, a second processing module 120, and a speaker 130. A first input of the first processing module 110 is for inputting a first audio signal. A first output of the first processing module 110 is connected to an input of the second processing module 120. A second output of the first processing module 110 is connected to an input of a speaker 130. In operation of the audio circuit 10, the first processing module 110 may output the input first audio signal to the speaker 130 and the second processing module 120, respectively. Speaker 130 may play audio according to the first audio signal. The second processing module 120 may perform frequency conversion on the first audio signal to obtain a second audio signal, and transmit the second audio signal. Thus, the audio circuit 10 can play audio according to the received audio signal, and can also share the received audio signal with other audio devices, thereby improving the flexibility of audio playing.
When the audio circuit 10 generates the sensing signal, the frequency of the first audio signal is converted to obtain a second audio signal, and the second audio signal is transmitted, so that unnecessary power consumption of the audio circuit 10 can be reduced.
The audio circuit 10 may implement a cellular connection. That is, after one audio circuit 10 is connected to the audio output device 20, a plurality of audio circuits 10 can be connected to each other, thereby avoiding the trouble of frequent switching of the audio output device 20 by repeating pairing. After the audio circuits 10 are connected with each other, the same music can be played, so that the requirements of surround sound can be met by adjusting the positions of the audio circuits 10. In this way, the flexibility and entertainment of the audio circuit 10 can be enhanced.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. An audio circuit, comprising: the system comprises a first processing module, a second processing module and a loudspeaker;
the first input end of the first processing module is used for inputting a first audio signal, and the first output end of the first processing module is connected with the input end of the second processing module;
the second output end of the first processing module is connected with the input end of the loudspeaker;
when the first audio signal is input by the first processing module, the first processing module outputs the first audio signal to the second processing module and the loudspeaker respectively;
the second processing module is used for carrying out frequency conversion on the first audio signal to obtain a second audio signal and transmitting the second audio signal.
2. The audio circuit of claim 1, wherein the audio circuit further comprises: a Bluetooth module;
the output end of the Bluetooth module is connected with the first input end of the first processing module, and the Bluetooth module is used for receiving Bluetooth audio signals transmitted by audio output equipment, processing the Bluetooth audio signals to obtain the first audio signals, and outputting the first audio signals to the first processing module.
3. The audio circuit of claim 1, wherein the first input of the first processing module is configured to be coupled to an audio output device to receive the first audio signal output by the audio output device.
4. The audio circuit of claim 1, wherein the first processing module is further configured to generate a sense signal when the audio circuit is less than a predetermined distance from other audio circuits;
the first processing module inputs the first audio signal, and when the first processing module generates the sensing signal, the first processing module outputs the first audio signal to the second processing module.
5. The audio circuit of claim 4, wherein the first processing module comprises: a first antenna unit and a first processing unit;
the first antenna unit is connected with an antenna connecting end of the first processing unit, a first input end of the first processing unit is used for inputting the first audio signal, a first output end of the first processing unit is connected with an input end of the second processing module, and a second output end of the first processing unit is connected with an input end of the loudspeaker;
the first antenna unit generates a sensing signal when the distance between the audio circuit and other audio circuits is smaller than a preset distance, and outputs the sensing signal to the first processing unit;
the first processing unit inputs the first audio signal, and when the first processing unit receives the induction signal, the first processing unit outputs the first audio signal to the second processing module; when the first processing unit inputs the first audio signal, the first processing unit outputs the first audio signal to the loudspeaker.
6. The audio circuit of claim 4, wherein the output terminal of the second processing module is connected to the second input terminal of the first processing module, and the second processing module is configured to receive a third audio signal transmitted by another audio circuit and output the third audio signal to the first processing module;
the first processing module does not input the first audio signal, and when the first processing module generates the sensing signal, the first processing module receives the third audio signal and outputs the third audio signal to the loudspeaker.
7. The audio circuit of claim 6, wherein the second processing module is capable of transmitting the second audio signal while receiving the third audio signal.
8. The audio circuit of claim 6 or 7, wherein the second processing module comprises: two second antenna units and a second processing unit;
the two second antenna units are connected with the antenna connecting end of the second processing unit, the input end of the second processing unit is connected with the first output end of the first processing module, the output end of the second processing unit is connected with the second input end of the first processing module, and the second processing unit is used for performing frequency conversion on the first audio signal to obtain a second audio signal;
one of the two second antenna units is configured to transmit the second audio signal, and the other of the two second antenna units is configured to receive the third audio signal and output the third audio signal to the second processing unit.
9. The audio circuit of claim 6 or 7, wherein the audio circuit further comprises: and the output end of the control module is connected with the control end of the second processing module so as to control the second processing module to transmit the second audio signal and/or receive the third audio signal.
10. Audio device, characterized in that it comprises an audio circuit according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121517591.1U CN215818581U (en) | 2021-07-05 | 2021-07-05 | Audio circuit and audio equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121517591.1U CN215818581U (en) | 2021-07-05 | 2021-07-05 | Audio circuit and audio equipment |
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| Publication Number | Publication Date |
|---|---|
| CN215818581U true CN215818581U (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121517591.1U Active CN215818581U (en) | 2021-07-05 | 2021-07-05 | Audio circuit and audio equipment |
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| Country | Link |
|---|---|
| CN (1) | CN215818581U (en) |
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2021
- 2021-07-05 CN CN202121517591.1U patent/CN215818581U/en active Active
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