Intelligent frequency division method, intelligent frequency divider, and intelligent frequency division equipment, device, and medium

Abstract

The present invention discloses an intelligent frequency division method, an intelligent frequency divider, and an intelligent frequency division device, apparatus, and medium. The intelligent frequency division method includes: receiving a Bluetooth signal, and if it is detected that the Bluetooth signal contains a Bluetooth control signal, controlling the first main channel to close, so that the Bluetooth audio signal in the Bluetooth signal is output along the first main channel to the full-range speaker end; receiving other functional signals, and if it is detected that the other functional signals contain other functional control signals, controlling the second main channel to close, so that the other functional audio signals in the other functional signals are output along the second main channel and output to the full-range speaker end after frequency division. The intelligent frequency divider includes: a first analog switch module; a second analog switch module; a frequency division module; and a full-range speaker end. The intelligent frequency division device includes: a Bluetooth chip; other functional chips; an intelligent frequency divider connected to the Bluetooth chip and other functional chips, and receiving Bluetooth signals and other functional signals to implement the intelligent frequency division method.

Description

Technical Field

[0001] The present invention relates to the field of audio processing equipment, and in particular to an intelligent frequency division method, an intelligent frequency divider, and intelligent frequency division equipment, a device, and a medium. Background Art

[0002] Ericsson developed Bluetooth technology in 1994. By eliminating traditional serial data cables (RS-232 interfaces), Bluetooth technology provided a superior method for information transmission. Even earlier, in 1878, American scientists invented the first carbon crystal hearing aid. With the rapid development and functional improvement of both Bluetooth and other electronic products, Bluetooth hearing aids, Bluetooth hearing aids, and Bluetooth intercoms have gradually become popular. While providing amplification, they can also connect devices using Bluetooth signals for wireless data transmission, making a simple product more versatile. However, existing Bluetooth and other audio functions (such as hearing aids and intercoms) on the market are relatively limited in terms of audio output. Existing products, whether Bluetooth audio is output after internal amplification algorithms in other audio functions or when Bluetooth is turned off, use a single speaker or dual speakers for different functions. This results in a poor balance between sound quality, product size, and cost.

[0003] Currently, multifunctional products composed of Bluetooth chips and other audio chips generally use a single speaker or dual speakers for output. The single-speaker output connection method connects all output audio to one speaker. This way, when other functions (such as hearing aids and intercoms) are outputting audio signals, only the high-frequency portion of the human voice is required, but the low-frequency portion is actually output. This can easily cause a low-frequency booming sound and make the human voice output dull and unclear. Dual-speaker output uses two speakers, one for music audio signals and the other for other functions (such as hearing aids and intercoms). Although this method achieves the problem of high-frequency and full-band output of human voices, using two speakers will make the product too large, increase power consumption and cost, and is not conducive to increasing the product's competitive advantage.

[0004] In order to improve product quality and enhance user experience, it is necessary to propose a way to solve the problems of high power consumption and poor sound quality in current products where Bluetooth and other functions coexist. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide an intelligent frequency division method, intelligent frequency divider and intelligent frequency division equipment, device and medium that can achieve lower power consumption, lower cost and volume than normal dual-speaker Bluetooth hearing aids, and have more perfect sound quality than products with a single speaker that outputs Bluetooth and other functions.

[0006] In a first aspect, the present invention provides an intelligent frequency division method, comprising:

[0007] Receive a Bluetooth signal, and if it is detected that the Bluetooth signal contains a Bluetooth control signal, control the first main channel to be closed, so that the Bluetooth audio signal in the Bluetooth signal is output to the full-range speaker end along the first main channel;

[0008] Receive other function signals. If it is detected that other function control signals are contained in the other function signals, the second main channel is controlled to be closed, so that other function audio signals in the other function signals are output along the second main channel and output to the full-range speaker end after frequency division.

[0009] The intelligent frequency division method of the present invention utilizes the frequency division processing mode, switches in real time according to different working states, and timely adjusts the output frequency band of the speaker according to the functional status of the product, thereby meeting the needs of optimizing sound quality and reducing power consumption. Moreover, there is no need to set up two speakers, which can save product volume and cost.

[0010] In one implementation of the above technical solution, the intelligent frequency division method further includes: if it is detected that the Bluetooth signal does not contain a Bluetooth control signal, controlling the first auxiliary channel to be closed, so that the Bluetooth audio signal in the Bluetooth signal is disconnected from being output.

[0011] In one embodiment of the above technical solution, the intelligent frequency division method further includes: if it is detected that the other function signal does not contain the other function control signal, controlling the second auxiliary channel to close so that the other function audio signal in the other function signal is disconnected from output.

[0012] In one embodiment of the above technical solution, the output to the full-range speaker end after frequency division includes: filtering out the low-frequency audio signal and the high-frequency audio signal in other functional audio signals, so that the mid-frequency audio signal is output to the full-range speaker end.

[0013] In one embodiment of the above technical solution, the output to the full-range speaker end after frequency division includes: filtering out the low-frequency audio signal in other functional audio signals, so that the mid- and high-frequency audio signals are output to the full-range speaker end.

[0014] In a second aspect, the present invention provides an intelligent frequency divider, comprising:

[0015] a first analog switch module, wherein the first analog switch module is provided with a first main channel; the first analog switch module is configured to receive a Bluetooth signal, and if a Bluetooth control signal is detected in the Bluetooth signal, control the first main channel to be closed, so that the Bluetooth audio signal in the Bluetooth signal is output along the first main channel to the full-range speaker end;

[0016] a second analog switch module, the second analog switch module being provided with a second main channel; the second analog switch module being configured to receive other function signals, and if detecting that the other function signals contain other function control signals, controlling the second main channel to close, so that other function audio signals in the other function signals are output along the second main channel;

[0017] A frequency division module is used to divide the frequency of other functional audio signals after they are output along the second main channel;

[0018] The full-range speaker end is used to receive the Bluetooth audio signal output by the first main channel and other functional audio signals after frequency division by the frequency division module.

[0019] In one embodiment of the above technical solution, the first analog switch module is further provided with a first auxiliary channel; the first analog switch module is further used to: if it is detected that the Bluetooth signal does not contain a Bluetooth control signal, control the first auxiliary channel to close, so that the Bluetooth audio signal in the Bluetooth signal is disconnected from output.

[0020] In one embodiment of the above technical solution, the second analog switch module is further provided with a second auxiliary channel; the second analog switch module is also used to: if it is detected that the other function signal does not contain the other function control signal, then control the second auxiliary channel to close, so that the other function audio signal in the other function signal is disconnected from output.

[0021] In one implementation of the above technical solution, the frequency division module includes:

[0022] Signal input terminal, used to receive other functional audio signals;

[0023] a first capacitor C1, the first capacitor C1 being connected in series with the signal input terminal and then connected to the full-range speaker terminal;

[0024] A second capacitor C2, the second capacitor C2 is connected in parallel to the full-range speaker terminal;

[0025] A ground terminal is connected to the second capacitor C2 and the full-range speaker terminal.

[0026] In one implementation of the above technical solution, the frequency division module includes:

[0027] Signal input terminal, used to receive other functional audio signals;

[0028] a first capacitor C1, the first capacitor C1 being connected in series with the signal input terminal and then connected to the full-range speaker terminal;

[0029] An inductor L1, wherein the inductor L1 is connected in parallel with the full-range speaker terminal;

[0030] A ground terminal is connected to the inductor L1 and the full-range speaker terminal.

[0031] In one implementation of the above technical solution, the frequency division module includes:

[0032] Signal input terminal, used to receive other functional audio signals;

[0033] a first capacitor C1, the first capacitor C1 being connected in series with the signal input terminal;

[0034] A second capacitor C2, which is connected in series with the first capacitor C1 and then connected to the full-range speaker end;

[0035] an inductor L1, one end of the inductor L1 being connected between the first capacitor C1 and the second capacitor C2;

[0036] A ground terminal is connected to the other end of the inductor L1 and the full-range speaker terminal.

[0037] In a third aspect, an intelligent frequency division device includes:

[0038] Bluetooth chip, used to generate Bluetooth signals;

[0039] Other functional chips, used to generate other functional signals;

[0040] The intelligent frequency divider described in any one of the above items is connected to the Bluetooth chip and other functional chips, and receives Bluetooth signals and other functional signals to implement the intelligent frequency division method described in any one of the above items.

[0041] In a fourth aspect, an intelligent frequency division device includes:

[0042] a memory for storing one or more programs;

[0043] A processor is configured to run the program stored in the memory to implement any of the above-mentioned intelligent frequency division methods.

[0044] In a fifth aspect, a computer-readable storage medium stores at least one program, which, when executed by a processor, implements the intelligent frequency division method as described in any one of the above items.

[0045] Compared with the existing technology, the intelligent frequency division method, intelligent frequency divider and intelligent frequency division equipment, devices and media of the present invention utilize the frequency division processing method to switch in real time according to different working states, and adjust the output frequency band of the speaker in time according to the functional status of the product, thereby meeting the needs of optimizing sound quality and reducing power consumption. Moreover, there is no need to set up two speakers, which can save product volume and cost.

[0046] For better understanding and implementation, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 FIG. 4 is an exemplary connection diagram of the intelligent frequency divider of the present invention.

[0048] Figure 2 This is a circuit diagram of the frequency division module in implementation mode 1.

[0049] Figure 3 This is a circuit diagram of the frequency division module in the second embodiment.

[0050] Figure 4 This is a circuit diagram of the frequency division module in implementation mode three.

[0051] Figure 5 Schematic diagram of an exemplary connection of the intelligent frequency division device of the present invention. DETAILED DESCRIPTION

[0052] The terms "up," "down," "left," "right," "front," "back," "front," "back," "top," and "bottom" mentioned or potentially mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage. Therefore, these and other directional terms should not be construed as restrictive.

[0053] The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of embodiments consistent with some aspects of the present disclosure.

[0054] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms "a," "the," and "the" used in this disclosure are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0055] The invention can be applied to intelligent frequency division products that can coexist with Bluetooth and other functional modules and automatically switch between different audio output ranges, including but not limited to Bluetooth and hearing aids, Bluetooth and auxiliary hearing devices, Bluetooth and intercoms, and other products that have common output functions with Bluetooth audio.

[0056] The present invention can output Bluetooth and other audio together using one speaker, and can process the audio signal according to the audio range actually required by other functions to output the actually required audio segment.

[0057] First, see Figure 1The present invention provides an intelligent frequency divider, including a first analog switch module A, a second analog switch module B, a frequency dividing module C and a full-range speaker terminal SPK.

[0058] The first analog switch module A is part of the Bluetooth audio control unit. It has a first main channel A1 and a first auxiliary channel A2. It receives Bluetooth signals and, if it detects a Bluetooth control signal, closes the first main channel A1, outputting the Bluetooth audio signal along the first main channel A1 to the full-range speaker terminal SPK. If it detects the Bluetooth signal does not contain a Bluetooth control signal, it closes the first auxiliary channel A2, disconnecting the Bluetooth audio signal from the Bluetooth signal.

[0059] When the Bluetooth function is turned on, a Bluetooth signal (Bluetooth audio signal and / or Bluetooth control signal) is input to the first analog switch module A. If a Bluetooth control signal is detected in the Bluetooth signal, the first main channel A1 is controlled to close, allowing the Bluetooth audio signal to be directly output to the full-range speaker terminal SPK. Conversely, if no Bluetooth control signal is detected, the first auxiliary channel A2 is controlled to close, disconnecting the Bluetooth audio signal output.

[0060] The second analog switch module B belongs to the other function audio control unit. It is equipped with a second main channel B1 and a second auxiliary channel B2. The second analog switch module B is used to receive other function signals. If it detects that the other function signals contain other function control signals, it controls the second main channel B1 to close, causing the other function audio signals in the other function signals to be output along the second main channel B1. If it detects that the other function signals do not contain other function control signals, it controls the second auxiliary channel B2 to close, causing the other function audio signals in the other function signals to be output.

[0061] When other functions (such as hearing aid and intercom) are enabled, other function signals (other function audio signals and / or other function control signals) are input to the second analog switch module B. If it is detected that the other function signals contain other function control signals, the second main channel B1 is controlled to close, allowing the other function audio signals to be output to the frequency division module. Conversely, if it is detected that the other function signals do not contain other function control signals, the second auxiliary channel B2 is controlled to close, disconnecting the other function audio signals from being output.

[0062] By switching between two internal analog switches (the first analog switch module A and the second analog switch module B), real-time changes can be made based on the current user's functional scenario. The closing and switching response time of the analog switches is very fast, and from a technical perspective, no audio signal loss can be achieved.

[0063] The frequency division module C is used to divide the frequency of other functional audio signals after they are output along the second main channel B1.

[0064] The full-range speaker terminal SPK is used to receive the Bluetooth audio signal output by the first main channel A1 and other functional audio signals after frequency division by the frequency division module C.

[0065] When other functional audio signals are input, the audio components that interfere with the hearing sense are filtered out according to the actual functional requirements. The specific implementation methods of the frequency division module C are as follows:

[0066] Implementation Method 1

[0067] See also Figure 2 In this embodiment, the frequency division module C includes:

[0068] Signal input terminal IN+, used to receive other functional audio signals;

[0069] A first capacitor C1, which is connected in series with the signal input terminal IN+ and then connected to the full-range speaker terminal SPK;

[0070] A second capacitor C2 is connected in parallel to the full-range speaker terminal SPK;

[0071] The ground terminal IN- is connected to the second capacitor C2 and the full-range speaker terminal SPK.

[0072] In this embodiment, the working characteristic of the capacitor "blocking DC and passing AC" is utilized, and the first capacitor C1 is connected in series with the input end (signal input end IN+) and the second capacitor C2 is connected in parallel with the output end (full-range speaker end SPK) to achieve the first-order frequency division function.

[0073] A first capacitor C1 (a larger coupling capacitor) is connected in series with the signal input terminal IN+ to filter out low-frequency audio signals while allowing mid- and high-frequency audio signals to pass through. Simultaneously, a second capacitor C2 (a smaller capacitor) is connected in parallel with the full-range speaker terminal SPK to couple the high-frequency audio signals to ground. These two capacitors filter out low- and high-frequency audio signals from other functional audio signals, allowing the mid-frequency audio signal to be output to the full-range speaker terminal SPK, retaining only the useful mid-frequency human voice audio signal. This filtering method has a simple circuit principle and strong operability, allowing the output frequency band to be adjusted according to the function and speaker characteristics.

[0074] Implementation Method 2

[0075] See also Figure 3 In this embodiment, the frequency division module C includes:

[0076] Signal input terminal IN+, used to receive other functional audio signals;

[0077] A first capacitor C1, which is connected in series with the signal input terminal IN+ and then connected to the full-range speaker terminal SPK;

[0078] Inductor L1, inductor L1 is connected in parallel with the full-range speaker terminal SPK;

[0079] The ground terminal IN- is connected to the inductor L1 and the full-range speaker terminal SPK.

[0080] In this implementation, a second-order frequency-dividing network is used to achieve the frequency-dividing output. This involves a first capacitor C1 connected in series with an inductor L1 in parallel to filter out low-frequency audio signals. This utilizes the characteristics of the capacitor (blocking DC and passing AC) and the inductor (blocking AC and DC) to filter out low-frequency audio signals that could affect the human voice.

[0081] The first capacitor C1 (larger coupling capacitor) is connected in series at the signal input terminal IN+ to filter out the low-frequency audio signal and allow the mid- and high-frequency audio signals to pass through. At the same time, the inductor L1 (smaller inductor) is connected in parallel at the full-range speaker end SPK to utilize the "isolation and direct current" characteristics of the inductor to couple the remaining low-frequency audio signal to the ground. Through the above coupling method of the first capacitor C1 and the inductor L1, the low-frequency audio signal is completely filtered out, retaining only the audio signal with the most concentrated mid- and high-frequency human voice part. This filtering method has a strong circuit principle and completely removes the low-frequency audio signal. The parameters of the components can be adjusted according to the needs of the user's use function to achieve a high-performance acoustic experience.

[0082] Implementation Method 3

[0083] See also Figure 4 In this embodiment, the frequency division module C includes:

[0084] Signal input terminal IN+, used to receive other functional audio signals;

[0085] A first capacitor C1, the first capacitor C1 is connected in series with the signal input terminal IN+;

[0086] A second capacitor C2, which is connected in series with the first capacitor C1 and then connected to the full-range speaker terminal SPK;

[0087] an inductor L1, one end of the inductor L1 being connected between the first capacitor C1 and the second capacitor C2;

[0088] The ground terminal IN- is connected to the other end of the inductor L1 and the full-range speaker terminal SPK.

[0089] In this implementation, a combination of first-order and second-order crossover networks is used to filter out low- and high-frequency audio signals. This solution combines a first-order crossover solution with a second-order crossover solution, filtering out low-frequency signals through a front-end second-order network and then filtering out high-frequency audio signals through back-end capacitors. This allows the full-range speaker SPK to output only mid-frequency audio signals, representing the human voice. This crossover solution allows the full-range speaker SPK to adjust its output frequency band based on the actual product's audio requirements, achieving precise output control and an optimal acoustic experience.

[0090] For example, take the dual-function hearing aid headphones with Bluetooth and hearing aid as an example: when the Bluetooth function is output, the smart crossover detects the Bluetooth control signal and directly outputs the complete Bluetooth audio signal; when the hearing aid function is started, the smart crossover detects that the hearing aid function signal is turned on, and the crossover module is automatically turned on, and the hearing aid audio signal passes through the crossover module to remove the audio range that affects the hearing sense, thereby improving the audio quality and achieving a high-quality hearing aid effect.

[0091] Compared to existing technologies, the combined audio output of Bluetooth and other functional devices presents two challenges. The first is that the audio signal is output directly through a single speaker without any processing. However, other functional devices (such as hearing aids and intercoms) only need to output audio signals in a certain frequency band, attenuating signals in other frequency bands, otherwise the listening experience will be unclear. Another solution is to use two speakers, with the Bluetooth function output connected to one speaker and the other function output to the other speaker. However, the power consumption of both speakers is greatly increased when they are always on.

[0092] The intelligent frequency division method of the present invention switches in real time according to different working states and adjusts the output frequency band of the speaker in time according to the functional status of the product, thereby meeting the demand for optimizing sound quality and reducing power consumption. Moreover, there is no need to set up two speakers, which can save product volume and cost.

[0093] In a second aspect, based on the same inventive concept, the present invention provides an intelligent frequency division method, which can be implemented by the above-mentioned intelligent frequency divider, including:

[0094] Step 101: Receive a Bluetooth signal. If it is detected that the Bluetooth signal contains a Bluetooth control signal, control the first main channel A1 to be closed, so that the Bluetooth audio signal in the Bluetooth signal is output along the first main channel A1 to the full-range speaker end SPK; if it is detected that the Bluetooth signal does not contain a Bluetooth control signal, control the first auxiliary channel A2 to be closed, so that the Bluetooth audio signal in the Bluetooth signal is disconnected from being output.

[0095] Step 102, receiving other function signals. If it is detected that the other function signals contain other function control signals, the second main channel B1 is controlled to be closed, so that the other function audio signals in the other function signals are output along the second main channel B1 and output to the full-range speaker end SPK after frequency division; if it is detected that the other function signals do not contain other function control signals, the second auxiliary channel B2 is controlled to be closed, so that the other function audio signals in the other function signals are disconnected from being output.

[0096] In one embodiment, the frequency division and output to the full-range speaker terminal SPK includes filtering out low- and high-frequency audio signals from other functional audio signals, thereby outputting the mid-frequency audio signal to the full-range speaker terminal SPK. In this embodiment, the low- and high-frequency audio signals are filtered out, retaining only the useful mid-frequency human voice audio signal. This embodiment can be implemented using the frequency division module described in Embodiments 1 and 3 above.

[0097] In another embodiment, the crossover module, which is used to output the audio signals to the full-range speaker terminal SPK after frequency division, includes filtering out low-frequency audio signals from other functional audio signals, thereby outputting mid- and high-frequency audio signals to the full-range speaker terminal SPK. In this embodiment, the low-frequency audio signals are completely filtered out, retaining only the audio signals with the highest concentration of mid- and high-frequency human voices. This embodiment can be implemented using the crossover module described in the second embodiment above.

[0098] It should be noted that the above steps 101 and 102 do not limit the timing.

[0099] Through the intelligent frequency division method of the present invention, real-time switching is performed according to different working states, and the output frequency band of the speaker is adjusted in time according to the functional status of the product, thereby meeting the demand for optimizing sound quality and reducing power consumption. Moreover, there is no need to set up two speakers, which can save product volume and cost.

[0100] Thirdly, please refer to Figure 5 In the figure, the analog switch module represents the first analog switch module A and the second analog switch module B.

[0101] Based on the same inventive concept, the present invention provides an intelligent frequency division device comprising:

[0102] Bluetooth chip, used to generate Bluetooth signals;

[0103] Other functional chips, used to generate other functional signals;

[0104] The above-mentioned intelligent frequency divider is connected with the Bluetooth chip and other functional chips, and receives Bluetooth signals and other functional signals to implement the above-mentioned intelligent frequency division method.

[0105] For example, when the Bluetooth function is turned on, the smart crossover will turn on the frequency division function of the smart crossover by default after detecting the Bluetooth control signal. At this time, when the Bluetooth audio signal output of the Bluetooth chip passes through other function chips, it is directly output to the full-range speaker end SPK through the frequency division module C. On the contrary, if the Bluetooth function is not started and only other function chips are working, it is only necessary for the other function chips to input the function status information pin into the smart crossover. The smart crossover automatically starts the internal frequency division module and filters the sound through the frequency division circuit preset inside the frequency division module (see the above-mentioned implementation methods one to three), so as to reduce the impact on the human voice frequency band, so that the full-range speaker end SPK only outputs the sound in the human voice frequency band, so as to achieve a sound closer to the actual input audio and a clearer sound quality experience.

[0106] Use a single speaker to increase the output mode of the intelligent crossover. When playing music audio signals, the Bluetooth chip outputs the Bluetooth control signal to the intelligent crossover, and the intelligent crossover switches to full-frequency mode and outputs it to the full-band speaker; when playing audio signals of other functions (such as hearing aids, intercom, etc.), other function chips output other function control signals to the intelligent crossover, and the intelligent crossover starts intelligent crossover. Through the preset crossover circuit inside the crossover module, the audio signals of other audio bands are filtered out, and the high-frequency signals of human voice are output to the full-band speaker, so that the speaker output is more in line with the actual needs of users, so as to obtain a better audio experience.

[0107] In a fourth aspect, based on the same inventive concept, the present invention provides an intelligent frequency division device, comprising:

[0108] a memory for storing one or more programs;

[0109] The processor is used to run the program stored in the memory to implement the above-mentioned intelligent frequency division method.

[0110] The apparatus may also preferably include a communication interface, which is used for communicating with external devices and transmitting data interactively.

[0111] It should be noted that the memory may include a high-speed RAM memory, and may also include a non-volatile memory (nonvolatile memory), such as at least one disk memory.

[0112] In a specific implementation, if the memory, processor, and communication interface are integrated on a single chip, they can communicate with each other via an internal interface. If the memory, processor, and communication interface are implemented independently, they can be connected to each other via a bus and communicate with each other.

[0113] In a fifth aspect, based on the same inventive concept, the present invention provides a computer-readable storage medium storing at least one program, which, when executed by a processor, implements the intelligent frequency division method as described above.

[0114] It should be understood that a computer-readable storage medium is any data storage device that can store data or a program, which can then be read by a computer system. Examples of computer-readable storage media include read-only memory, random access memory, CD-ROMs, HDDs, DVDs, magnetic tapes, and optical data storage devices. Computer-readable storage media can also be distributed among network-coupled computer systems so that computer-readable code can be stored and executed in a distributed manner.

[0115] The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wire, optical cable, radio frequency (RF), etc., or any suitable combination thereof.

[0116] In some embodiments, the computer-readable storage medium may be non-transitory.

[0117] The intelligent frequency division method, intelligent frequency divider, and intelligent frequency division equipment, devices, and media of the present invention utilize a frequency division processing method to switch in real time according to different working states, and timely adjust the output frequency band of the speaker according to the functional state of the product, thereby meeting the needs of optimizing sound quality and reducing power consumption. Moreover, there is no need to set up two speakers, which can save product volume and cost.

[0118] The above embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. An intelligent frequency division method, characterized in that: include: Receive a Bluetooth signal, and if it is detected that the Bluetooth signal contains a Bluetooth control signal, control the first main channel to be closed, so that the Bluetooth audio signal in the Bluetooth signal is output to the full-range speaker end along the first main channel; if it is detected that the Bluetooth signal does not contain a Bluetooth control signal, control the first auxiliary channel to be closed, so that the Bluetooth audio signal in the Bluetooth signal is disconnected from being output; Receive other function signals. If it is detected that the other function signals contain other function control signals, control the second main channel to be closed, so that the other function audio signals in the other function signals are output along the second main channel and output to the full-range speaker end after frequency division. The frequency division process is to filter out the low-frequency audio signals in the other function audio signals, so that the mid- and high-frequency audio signals are output to the full-range speaker end; or filter out the low-frequency audio signals and high-frequency audio signals in the other function audio signals, so that the mid-frequency audio signals are output to the full-range speaker end; If it is detected that the other function signal does not contain the other function control signal, the second auxiliary channel is controlled to be closed, so that the other function audio signal in the other function signal is disconnected from output; The frequency division process uses a first capacitor C1 connected in series with the signal input terminal IN+ and a second capacitor C2 connected in parallel with the output terminal to achieve a first-order frequency division function; or, Use a second-order frequency division network solution to achieve frequency division output, that is, use a first capacitor C1 in series with the signal input terminal IN+ and an inductor L1 in parallel with the output terminal to filter out low-frequency audio signals; or, A combination of first-order and second-order crossover networks is used to filter out low and high frequency audio signals. That is, the first capacitor C1 is connected in series with the signal input terminal IN+, the second capacitor C2 is connected in series with the first capacitor C1 and then connected to the full-range speaker terminal SPK, and one end of the inductor L1 is connected between the first capacitor C1 and the second capacitor C2.

2. An intelligent frequency divider, characterized in that: Executing the intelligent frequency division method according to claim 1, comprising: A first analog switch module is provided with a first main channel; the first analog switch module is used to receive a Bluetooth signal, and if it is detected that the Bluetooth signal contains a Bluetooth control signal, the first main channel is controlled to be closed, so that the Bluetooth audio signal in the Bluetooth signal is output to the full-range speaker end along the first main channel; the first analog switch module is also provided with a first auxiliary channel; the first analog switch module is further used to: if it is detected that the Bluetooth signal does not contain a Bluetooth control signal, the first auxiliary channel is controlled to be closed, so that the Bluetooth audio signal in the Bluetooth signal is disconnected from being output; a second analog switch module, the second analog switch module being provided with a second main channel; the second analog switch module being configured to receive other function signals, and if detecting that the other function signals contain other function control signals, controlling the second main channel to close, so that other function audio signals in the other function signals are output along the second main channel; the second analog switch module being further configured with a second auxiliary channel; the second analog switch module being further configured to: if detecting that the other function signals do not contain other function control signals, controlling the second auxiliary channel to close, so that other function audio signals in the other function signals are disconnected from output; The frequency division module is used to divide the other functional audio signals after they are output along the second main channel. The frequency division process is to filter out the low-frequency audio signals in the other functional audio signals and output the mid- and high-frequency audio signals to the full-range speaker end; or to filter out the low- and high-frequency audio signals in the other functional audio signals and output the mid-frequency audio signals to the full-range speaker end; The full-range speaker end is used to receive the Bluetooth audio signal output by the first main channel and other functional audio signals after frequency division by the frequency division module.

3. The intelligent frequency divider according to claim 2, characterized in that: The frequency division module includes: Signal input terminal, used to receive other functional audio signals; a first capacitor C1, the first capacitor C1 being connected in series with the signal input terminal and then connected to the full-range speaker terminal; A second capacitor C2, the second capacitor C2 is connected in parallel to the full-range speaker terminal; A ground terminal is connected to the second capacitor C2 and the full-range speaker terminal.

4. The intelligent frequency divider according to claim 2, characterized in that: The frequency division module includes: Signal input terminal, used to receive other functional audio signals; a first capacitor C1, the first capacitor C1 being connected in series with the signal input terminal and then connected to the full-range speaker terminal; An inductor L1, wherein the inductor L1 is connected in parallel with the full-range speaker terminal; A ground terminal is connected to the inductor L1 and the full-range speaker terminal.

5. The intelligent frequency divider according to claim 2, characterized in that: The frequency division module includes: Signal input terminal, used to receive other functional audio signals; a first capacitor C1, the first capacitor C1 being connected in series with the signal input terminal; A second capacitor C2, which is connected in series with the first capacitor C1 and then connected to the full-range speaker end; an inductor L1, one end of the inductor L1 being connected between the first capacitor C1 and the second capacitor C2; A ground terminal is connected to the other end of the inductor L1 and the full-range speaker terminal.

6. An intelligent frequency division device, characterized in that: include: Bluetooth chip, used to generate Bluetooth signals; Other functional chips, used to generate other functional signals; The intelligent frequency divider is connected to the Bluetooth chip and other functional chips, and receives Bluetooth signals and other functional signals to implement the intelligent frequency division method as claimed in claim 1.

7. An intelligent frequency division device, characterized in that: include: a memory for storing one or more programs; A processor is configured to run the program stored in the memory to implement the intelligent frequency division method according to claim 1.

8. A computer-readable storage medium storing at least one program, characterized in that: When the program is executed by a processor, the intelligent frequency division method according to claim 1 is implemented.

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