CN-122002192-A - Audio circuit, speaker module and electronic equipment

Abstract

The application discloses an audio circuit, a loudspeaker module and electronic equipment, and relates to the technical field of terminals. The speaker module includes a speaker assembly and a speaker attachment plate. The first signal end of the speaker assembly is connected with the first end of the speaker attachment plate, the second signal end of the speaker assembly is connected with the second end of the speaker attachment plate, and the second signal end of the speaker assembly is used for inputting audio signals. The connection state of the third end of the speaker attachment plate includes a first connection state or a second connection state. The first connection state is that the third end of the speaker attachment plate is connected with the second end of the speaker attachment plate, and the second connection state is that the third end of the speaker attachment plate is not connected with the second end of the speaker attachment plate. Thus, the processor can identify the speaker module by detecting the connection state of the third end of the speaker attachment plate.

Inventors

• FENG CHENGDONG

Assignees

• 荣耀终端股份有限公司

Dates

Publication Date

20260508

Application Date

20241108

Claims (15)

1. 1. An audio circuit, wherein the audio circuit comprises a processor and a speaker module; the loudspeaker module comprises a loudspeaker assembly and a loudspeaker accessory plate; The first end of the speaker accessory board is connected with the first end of the processor and the first signal end of the speaker assembly, the second end of the speaker accessory board is connected with the second end of the processor and the second signal end of the speaker assembly, and the second end of the processor is used for transmitting audio signals to the second signal end of the speaker assembly; the connection state of the third end of the loudspeaker accessory plate comprises a first connection state or a second connection state; The first connection state corresponds to a first speaker module, and is that a third end of the speaker attachment plate is connected with a second end of the speaker attachment plate; the second connection state corresponds to a second speaker module, and the second connection state is that the third end of the speaker accessory board is not connected with the second end of the speaker accessory board.
2. 2. The audio circuit of claim 1, wherein the processor is to: transmitting an audio signal to a second signal end of the speaker assembly; If a preset signal is detected at a third end of the processor, determining that the loudspeaker module is the first loudspeaker module; And if the third end of the processor does not detect the preset signal, determining the loudspeaker module as the second loudspeaker module.
3. 3. The audio circuit of claim 2, wherein the audio circuit further comprises a voltage dividing unit; The first end of the voltage division unit is connected with the third end of the loudspeaker accessory board, the second end of the voltage division unit is connected with the third end of the processor, the third end of the voltage division unit is connected with the ground wire, the voltage of the second end of the voltage division unit is smaller than that of the first end of the voltage division unit, and the voltage of the second end of the voltage division unit and the voltage of the first end of the voltage division unit are positively correlated.
4. 4. The audio circuit of claim 3, wherein the voltage dividing unit comprises a first resistor and a second resistor; The first end of the first resistor is connected with the third end of the loudspeaker accessory plate, the second end of the first resistor is connected with the first end of the second resistor and the third end of the processor, and the second end of the second resistor is connected with the ground wire.
5. 5. The audio circuit of claim 3 or 4, wherein the audio signal is a pulse signal and the predetermined signal is a square wave signal.
6. 6. The audio circuit as claimed in any one of claims 2 to 4, further comprising a filter unit; The first end of the filtering unit is connected with the third end of the loudspeaker accessory plate, and the second end of the filtering unit is connected with the third end of the processor.
7. 7. The audio circuit of claim 6, wherein the filter unit comprises a third resistor and a first capacitor; the first end of the third resistor is connected with the third end of the loudspeaker accessory plate, the second end of the third resistor is connected with the first polar plate of the first capacitor and the third end of the processor, and the second polar plate of the first capacitor is connected with the ground wire.
8. 8. The audio circuit of claim 6 or 7, wherein the audio signal is a pulse signal and the predetermined signal is a high level signal.
9. 9. The audio circuit as claimed in any one of claims 2 to 4, 6 to 7, further comprising a comparison unit; The first input end of the comparison unit is connected with the third end of the loudspeaker accessory plate, the second input end of the comparison unit is connected with the ground wire, the output end of the comparison unit is connected with the third end of the processor, and when the voltage of the first input end of the comparison unit is larger than that of the second input end of the comparison unit, the output end of the comparison unit outputs a high-level signal.
10. 10. The audio circuit of claim 9, wherein the comparison unit comprises a comparator; the non-inverting input end of the comparator is connected with the third end of the loudspeaker accessory board, the inverting input end of the comparator is connected with the ground wire, and the output end of the comparator is connected with the third end of the processor.
11. 11. The audio circuit of claim 10, wherein the audio signal is a pulse signal or an analog signal, and the predetermined signal is a high level signal.
12. 12. The audio circuit of any one of claims 1 to 11, wherein a fourth terminal of the processor is connected to a fourth terminal of the speaker pad; the connection state of the fourth end of the loudspeaker accessory plate comprises a third connection state or a fourth connection state; The third connection state corresponds to a third speaker module, and is that the fourth end of the speaker accessory plate is connected with the second end of the speaker accessory plate; The fourth connection state corresponds to a fourth speaker module, and the fourth connection state is that the fourth end of the speaker accessory board is not connected with the second end of the speaker accessory board.
13. 13. A speaker module, wherein the speaker module comprises a speaker assembly and a speaker attachment plate; The first signal end of the loudspeaker assembly is connected with the first end of the loudspeaker accessory plate, the second signal end of the loudspeaker assembly is connected with the second end of the loudspeaker accessory plate, and the second signal end of the loudspeaker assembly is used for inputting audio signals; The third end of the loudspeaker accessory plate is used for being connected with the third end of the processor; the connection state of the third end of the loudspeaker accessory plate comprises a first connection state or a second connection state; The first connection state corresponds to a first speaker module, and is that a third end of the speaker attachment plate is connected with a second end of the speaker attachment plate; the second connection state corresponds to a second speaker module, and the second connection state is that the third end of the speaker accessory board is not connected with the second end of the speaker accessory board.
14. 14. The speaker module of claim 13, wherein a fourth end of the speaker attachment plate is configured to be coupled to a fourth end of the processor; the connection state of the fourth end of the loudspeaker accessory plate comprises a third connection state or a fourth connection state; The third connection state corresponds to a third speaker module, and is that the fourth end of the speaker accessory plate is connected with the second end of the speaker accessory plate; The fourth connection state corresponds to a fourth speaker module, and the fourth connection state is that the fourth end of the speaker accessory board is not connected with the second end of the speaker accessory board.
15. 15. An electronic device comprising an audio circuit according to any one of claims 1 to 12, or comprising a processor and a speaker module according to claim 13 or 14.

Description

Audio circuit, speaker module and electronic equipment Technical Field The present application relates to the field of terminal technologies, and in particular, to an audio circuit, a speaker module, and an electronic device. Background Electronic devices such as cell phones, tablet computers, notebook computers, etc. typically have audio circuitry. The audio circuit includes a processor and a speaker module. When the electronic device is in operation, the processor can transmit audio signals to the speaker assemblies in the speaker modules to drive the speaker modules to emit sound. In the related art, one electronic device needs to configure a plurality of speaker modules, and audio performance of the plurality of speaker modules may be different. Therefore, in order to ensure the consistency of the audio performance of a plurality of speaker modules in one electronic device, the processor needs to identify the speaker modules first during operation, and then compensates audio signals for the speaker modules with different audio performances, thereby eliminating the difference of the audio performances. Based on this, a speaker module and an audio circuit that facilitate the recognition by the processor are needed. Disclosure of Invention The embodiment of the application provides a loudspeaker module, an audio circuit and electronic equipment, wherein the loudspeaker module further comprises a loudspeaker accessory board, and the connection states of third ends of the loudspeaker accessory board are different for the loudspeaker modules with different audio performances. Thus, the processor can identify the speaker module by detecting the connection state of the third end of the speaker attachment plate. The technical scheme is as follows: in a first aspect, a speaker module is provided. The speaker module includes a speaker assembly and a speaker attachment plate. The speaker assembly has a first signal terminal and a second signal terminal. The speaker attachment plate has a first end, a second end, and a third end. The first signal end of the speaker assembly is connected with the first end of the speaker attachment plate, and the first end of the speaker attachment plate is configured to be connected with the first end of the processor. The second signal end of the speaker assembly is connected to the second end of the speaker attachment plate, and the second end of the speaker attachment plate is configured to be connected to the second end of the processor. When the loudspeaker module works, the first signal end of the loudspeaker module is used for inputting an audio signal or a ground signal, and the second signal end of the loudspeaker module is used for inputting the audio signal so that the loudspeaker module emits sound under the drive of the audio signal. The third end of the speaker accessory board is used for being connected with the third end of the processor, so that the processor can detect the connection state of the third end of the speaker accessory board. Here, the connection state of the third end of the speaker attachment plate includes the first connection state or the second connection state. The first connection state corresponds to the first speaker module. The first connection state is that the third end of the speaker attachment plate is connected with the second end of the speaker attachment plate and the second signal end of the speaker assembly. The second connection state corresponds to a second speaker module. The second connection state is that the third end of the speaker accessory board is not connected with the second end of the speaker accessory board and the second signal end of the speaker assembly. In the embodiment of the application, the first speaker module and the second speaker module are two speaker modules with different audio performances. That is, the connection state of the third end of the speaker attachment plate is different for two speaker modules with different audio performances. Based on this, the processor can identify the two speaker modules by detecting the connection state of the third end of the speaker attachment plate. Therefore, the speaker module can realize the identification of two speaker modules only by one port. In some embodiments, the speaker attachment plate further has a fourth end. The fourth end of the speaker attachment plate is configured to be coupled to the fourth end of the processor such that the processor can detect the connection status of the fourth end of the speaker attachment plate. Here, the connection state of the fourth end of the speaker attachment plate includes a third connection state or a fourth connection state. The third connection state corresponds to a third speaker module. The third connection state is that the fourth end of the speaker attachment plate is connected with the second end of the speaker attachment plate and the second signal end of the speaker assembly. The fourth connection state corres