WO2022170903A1 - 蓝牙设备、蓝牙耳机及蓝牙设备的控制方法 - Google Patents

蓝牙设备、蓝牙耳机及蓝牙设备的控制方法 Download PDF

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Publication number
WO2022170903A1
WO2022170903A1 PCT/CN2022/071301 CN2022071301W WO2022170903A1 WO 2022170903 A1 WO2022170903 A1 WO 2022170903A1 CN 2022071301 W CN2022071301 W CN 2022071301W WO 2022170903 A1 WO2022170903 A1 WO 2022170903A1
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WIPO (PCT)
Prior art keywords
bluetooth
current
power supply
electrical appliance
communication module
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Application number
PCT/CN2022/071301
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English (en)
French (fr)
Inventor
孙国祯
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from CN202110181549.5A external-priority patent/CN114915869A/zh
Priority claimed from CN202120373046.3U external-priority patent/CN214481180U/zh
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Publication of WO2022170903A1 publication Critical patent/WO2022170903A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones

Definitions

  • the present application relates to the field of electronic technology, and in particular, to a Bluetooth device, a Bluetooth headset, and a control method for the Bluetooth device.
  • Embodiments of the present application provide a Bluetooth device, a Bluetooth headset, and a control method for the Bluetooth device.
  • an embodiment of the present application provides a Bluetooth device, including a Bluetooth communication module, a power source, and an electrical appliance.
  • the power source is configured to provide current for the Bluetooth communication module and the electrical appliance.
  • the Bluetooth communication When the module transmits the bluetooth signal, the electrical appliance is in the first state, and the power supply outputs the first current; when the bluetooth communication module does not transmit the bluetooth signal, the electrical appliance is in the second state, and the power supply outputs a second current; the difference between the first current and the second current is within a first preset range.
  • an embodiment of the present application provides a Bluetooth headset, including a Bluetooth communication module, a power supply, an electrical appliance, and a speaker, the power supply is configured to provide current for the Bluetooth communication module, the electrical appliance, and the speaker, and the Bluetooth
  • the power supply does not provide current for the electrical appliance or a fourth current for the electrical appliance, and when the bluetooth communication module transmits a bluetooth signal
  • the power supply provides a preset current for the electrical appliance, so that the current output by the power supply is controlled within a second preset range.
  • an embodiment of the present application provides a method for controlling a Bluetooth device, where the Bluetooth device includes a power source and an electrical appliance, and the method includes:
  • the electrical appliance When the bluetooth signal is transmitted, the electrical appliance is controlled to be in a first state, and the power supply outputs a first current
  • the electrical appliance When the bluetooth signal is not transmitted, the electrical appliance is controlled to be in a second state, the power supply outputs a second current, and the difference between the first current and the second current is within a first preset range.
  • FIG. 1 is a schematic diagram of a first structure of a Bluetooth device provided by an embodiment of the present application.
  • FIG. 2 is a timing control diagram provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a second structure of a Bluetooth device provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a third structure of a Bluetooth device provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a fourth structure of a Bluetooth device provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a fifth structure of a Bluetooth device provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a sixth structure of a Bluetooth device provided by an embodiment of the present application.
  • FIG. 8 is an application scenario diagram of a Bluetooth device provided by an embodiment of the present application.
  • FIG. 9 is a schematic flowchart of a method for controlling a Bluetooth device provided by an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a Bluetooth headset provided by an embodiment of the application. .
  • An embodiment of the present application provides a Bluetooth device, which includes a Bluetooth communication module, a power source, and an electrical appliance.
  • the power source is configured to provide current for the Bluetooth communication module and the electrical appliance.
  • the Bluetooth communication module transmits When the bluetooth signal is used, the electrical appliance is in a first state, and the power supply outputs a first current; when the bluetooth communication module does not transmit the bluetooth signal, the electrical appliance is in a second state, and the power supply outputs a second current. current; the difference between the first current and the second current is within a first preset range.
  • the electrical appliance in the first state, the electrical appliance is disconnected from the power supply; in the second state, the electrical appliance and the power supply are kept in conduction Pass.
  • the power supply in the first state, the power supply outputs a third current to the electrical appliance, and in the second state, the power supply outputs a third current to the electrical appliance four currents, so that the difference between the first current and the second current is within the first preset range.
  • the Bluetooth signal is a signal transmitted by the Bluetooth communication module during part or all of the process of establishing a Bluetooth connection by the Bluetooth communication module.
  • the first current is equal to the second current.
  • the power source is configured to keep the electrical appliance in a third state after the Bluetooth communication module completes the Bluetooth connection, so that the power source is not used for the user.
  • the electrical appliance outputs current or outputs the seventh current.
  • the Bluetooth device includes a sound module. If the Bluetooth device is a Bluetooth headset, the sound module includes a speaker, the speaker is connected to the Bluetooth communication module, and the speaker is connected to the Bluetooth communication module. Configured to play sound signals.
  • the Bluetooth communication module includes a Bluetooth circuit and an antenna radiator, and the Bluetooth circuit is electrically connected to the antenna radiator, the power supply, the electrical appliance, and the speaker, respectively.
  • the Bluetooth circuit is configured to control the conduction between the electrical appliance and the power supply; or, the power supply controls the power supply according to the communication situation of the Bluetooth circuit. current output.
  • the bluetooth circuit includes a bluetooth main control circuit and a radio frequency circuit, the bluetooth main control circuit is electrically connected to the power supply; the bluetooth main control circuit is also connected to the electrical appliance , so as to control the current consumption of the electrical appliance; the bluetooth main control circuit is connected to the antenna radiator through the radio frequency circuit, so as to send and receive Bluetooth signals through the radio frequency circuit and the antenna radiator.
  • the Bluetooth device further includes a first switch and a second switch, one end of the first switch is electrically connected to the Bluetooth main control circuit, and the other end of the first switch is electrically connected It is electrically connected to the radio frequency circuit, one end of the second switch is electrically connected to the bluetooth main control circuit, and the other end of the second switch is electrically connected to the electrical appliance.
  • the Bluetooth device further includes a first switch, the first switch includes an input end, a first output end and a second output end, and the input end is configured to be electrically connectable The first output end or the second output end, the input end is electrically connected to the Bluetooth main control circuit, the first output end is electrically connected to the radio frequency circuit, and the second output end is electrically connected to the bluetooth main control circuit.
  • the electrical connections are described above.
  • the present application also provides a Bluetooth headset, which includes a Bluetooth communication module, a power supply, an electrical appliance and a speaker, the power supply is configured to provide current for the Bluetooth communication module, the electrical appliance and the speaker, and is established in the Bluetooth communication module During all or part of the bluetooth connection, when the bluetooth communication module transmits a bluetooth signal, the power supply does not provide current for the electrical appliance or a fourth current for the electrical appliance, and when the bluetooth communication module does not When the Bluetooth signal is transmitted, the power supply provides a preset current for the electrical appliance, so that the current output by the power supply is controlled within a second preset range.
  • the noise generated by the Bluetooth headset is made to be within a third preset range.
  • the power supply is configured to make the current output by the power supply constant by outputting current to the electrical appliance during all or part of the process of establishing the Bluetooth connection by the Bluetooth communication module , to control the noise generated by the Bluetooth headset.
  • the power source is configured to keep the power source from providing current to the electrical appliance after the Bluetooth communication module completes the Bluetooth connection.
  • the maintaining that the power source does not provide current for the electrical appliance includes: disconnecting the power supply from the power source to the electrical appliance.
  • the Bluetooth communication module includes a Bluetooth circuit and an antenna radiator, the Bluetooth circuit is electrically connected to the power supply and the antenna radiator, respectively, and the Bluetooth circuit is configured as The antenna radiator is controlled to transmit or not to transmit the Bluetooth signal, and the power supply is controlled to supply or not supply power to the electrical appliance.
  • the bluetooth circuit includes a bluetooth main control circuit and a radio frequency circuit, the bluetooth main control circuit is electrically connected to the power supply; the bluetooth main control circuit is also connected to the electrical appliance , so as to control the current consumption of the electrical appliance; the bluetooth main control circuit is connected to the antenna radiator through the radio frequency circuit, so as to send and receive Bluetooth signals through the radio frequency circuit and the antenna radiator.
  • the present application also provides a method for controlling a Bluetooth device, wherein the Bluetooth device includes a power source and an electrical appliance, and the method includes:
  • the electrical appliance When the bluetooth signal is transmitted, the electrical appliance is controlled to be in a first state, and the power supply outputs a first current
  • the electrical appliance When the bluetooth signal is not transmitted, the electrical appliance is controlled to be in a second state, the power supply outputs a second current, and the difference between the first current and the second current is within a first preset range.
  • the Bluetooth device can be any device that can use the Bluetooth technology.
  • the Bluetooth device can be a Bluetooth headset, a Bluetooth speaker, a Bluetooth mouse, a Bluetooth watch, a cellular phone that can use the Bluetooth technology, or a Bluetooth device that can use the Bluetooth technology.
  • Technology home appliances such as televisions, projectors, rice cookers, etc.
  • the following takes a Bluetooth headset as an example for specific description.
  • FIG. 1 is a schematic diagram of a first structure of a Bluetooth device provided by an embodiment of the present application.
  • the Bluetooth device 20 may include a power supply 200, a Bluetooth communication module 400, and an electrical appliance 600.
  • the power supply 200 may provide power for the operation of the Bluetooth communication module 400 and the electrical appliance 600; Interaction with other devices.
  • the Bluetooth communication module 400 may not transmit the Bluetooth signal continuously, and the power consumption is relatively increased when the Bluetooth signal is transmitted, and the power consumption is relatively reduced when the Bluetooth signal is not transmitted, which may cause the current output by the power supply to fluctuate.
  • the output current of the power supply fluctuates frequently, so that the power supply generates a large electromagnetic field, which will emit corresponding electromagnetic radiation, Such electromagnetic radiation will cause electromagnetic interference to other components of the Bluetooth device 20, especially sensitive components such as speakers, thereby generating noise, such as current sound, and affecting the user's experience of use.
  • the source of the current sound mainly includes the interference of electronic components to the speaker, and the electronic components can be power inductors, batteries, etc.
  • the power source includes a battery, and certainly can include a power management circuit, etc.
  • the power management circuit can also be integrated in the Bluetooth communication module, or can be set separately, which is not limited.
  • an electrical appliance 600 is added to the Bluetooth device 20.
  • the electrical appliance 600 can be any electrical appliance as long as it can enable the power supply 200 to output power for it.
  • the electrical appliance 600 can be a single electrical appliance.
  • the resistor has a smaller volume, which can reduce the occupation of the internal space of the Bluetooth device 20 by the electrical appliance 600 , so that the Bluetooth device 20 can be more miniaturized.
  • the electrical appliance 600 can also be any circuit that can consume electrical energy composed of one or more of resistors, inductors, capacitors, triodes, amplifiers or other electronic components.
  • the power supply 200 is configured to provide current for the Bluetooth communication module 400 and the electrical appliance 600.
  • the Bluetooth communication module 400 transmits a Bluetooth signal
  • the electrical appliance 600 is in the first state, and the power supply 200 outputs the first current; when the Bluetooth communication module 400 does not transmit
  • the electrical appliance 600 is in the second state, and the power supply 200 outputs a second current; the difference between the first current and the second current is within a first preset range.
  • the first preset range is a preset range, which can be set according to the electromagnetic radiation situation generated by the power supply 200 or according to the current sound situation, so as to achieve the difference between the first current and the second current when the difference between the first current and the second current is reached.
  • the electromagnetic radiation of the power supply 200 can be reduced, thereby reducing the noise of the Bluetooth device 20 .
  • the power supply 200 can output current when transmitting or not transmitting the Bluetooth signal, and the output current is relatively stable, which can effectively reduce the electromagnetic field radiation intensity of the power supply 200 .
  • the electrical appliance 600 can be controlled in the first state that the electrical appliance 600 is disconnected from the power source 200, and the power source 200 does not output current for the electrical appliance 600; in the second state, the electrical appliance 600 and the power source 200 can be kept When it is turned on, the power supply 200 can output current for the electrical appliance 600 at this time.
  • the bluetooth communication module 400 transmits a bluetooth signal
  • the power supply 200 will provide current for it, but not for the electrical appliance 600; when the bluetooth communication module 400 does not transmit a bluetooth signal, the bluetooth communication module 400 phase Compared with the process of transmitting the bluetooth signal, it consumes less current to the power supply 200, so that the current output by the power supply 200 has a larger jitter.
  • the power supply 200 will emit a larger electromagnetic force. radiation.
  • the Bluetooth communication module 400 does not transmit a Bluetooth signal
  • the power supply 200 and the electrical appliance 600 are kept connected, and the electrical appliance 600 can consume a part of the current of the power supply 200, thereby reducing the consumption of the bluetooth communication module 400 when the bluetooth communication module 400 does not transmit a bluetooth signal.
  • the magnitude of the sudden drop in the current of the power supply 200 further reduces the electromagnetic radiation intensity of the power supply 200 .
  • the value of the first current and the value of the second current may be equal, for example, a specific description will be made with reference to FIG. 2 , which is a timing control diagram provided by an embodiment of the present application.
  • the Bluetooth communication module 400 can transmit a Bluetooth signal, and the power supply 200 outputs power to the Bluetooth communication module 400.
  • the first current output by the power supply 200 is I1
  • the electrical appliance 600 is kept disconnected from the power supply 200.
  • the current provided by the power source 200 to the consumer is 0 or a smaller value.
  • the Bluetooth communication module 400 may not transmit the Bluetooth signal, and the current provided by the power supply 200 to the Bluetooth communication module 400 is 0 or a smaller value at this time.
  • the second current output by the power source 200 is I2.
  • the power supply 200 generates large electromagnetic radiation, causing large noises, such as current sound. It can be understood that, in the embodiment of the present application, by adding an electrical appliance 600 and controlling the electrical appliance 600 to be in different states under different conditions of the Bluetooth communication module 400 , the power supply 200 can output the difference values respectively under the state corresponding to the electrical appliance 600 .
  • the first current and the second current within the first preset range can effectively reduce the electromagnetic field radiation intensity of the power supply 200 in the Bluetooth device 20, thereby reducing or avoiding noise caused by fluctuations in the output current of the power supply and affecting user usage.
  • 0-t1 and t1-t2 are only two time periods intercepted from the time sequence for specific explanation, and the operations of the remaining two adjacent times are the same as those of 0-t1 and t1-t2. .
  • the value of the first current I1 consumed by the power supply 200 in the first state and the second current I2 consumed by the power supply 200 in the second state may not be equal, such as The first current I1 may be less than or greater than the second current I2, at this time the power supply 200 emits a part of electromagnetic radiation, but the difference between the first current I1 and the second current I2 can be controlled such that the first current I1 and the second current I1
  • the current I2 is within the first preset range, and the electromagnetic radiation of the power source 200 is controlled at a low level. Only if the value of the first current I1 consumed by the power source 200 is equal to the second current I2 consumed by the power source 200 , the effect of controlling the electromagnetic radiation of the power source 200 is better.
  • the first current output by the power supply when the bluetooth signal is transmitted and the first current output when the bluetooth signal is not transmitted can be used by the electrical appliance.
  • the difference between the two currents can be controlled within the first preset range (including the first current and the second current being equal, and also including the case where they are not equal). For example, it is determined through experiments that the output current of the power supply will not fluctuate within a certain range.
  • a Bluetooth device such as a Bluetooth headset
  • noise such as current sound
  • a preset threshold so that it will not affect the user's use, for example, it is not enough for the user to perceive the current sound
  • a certain range can be As the first preset range, or determine the first preset range according to the certain range.
  • the relationship between the power source 200 and the electrical appliance 600 is not limited to this.
  • the power supply 200 in the first state, can output a third current to the electrical appliance 600, and in the second state, the power supply 200 can output a fourth current to the electrical appliance 600, so that the difference between the first current and the second current is within within the first preset range.
  • the power supply 200 and the electrical appliance 600 are always kept on, so that the power supply 200 outputs current for the electrical appliance 600 in these two states, and can By controlling the magnitudes of the output currents in the two states (ie, the magnitudes of the third current and the fourth current), the power supply 200 outputs the first current in the first state and the output current in the second state.
  • the difference between the second currents is within the first preset range, so as to achieve the purpose of reducing the electromagnetic radiation intensity of the power supply 200 .
  • control relationship between the power supply 200 , the Bluetooth communication module 400 and the electrical appliance 600 may be physically controlled by means of switches or other hardware, or the power supply 200 may always be maintained with the Bluetooth communication module 400 and the electrical appliance 600
  • the hardware is electrically connected, and then the power supply 200 is controlled to supply or not supply power to the Bluetooth communication module 400 by means of software or other means, and/or the power supply 200 is controlled to supply or not supply power to the electrical appliance 600 .
  • the above-mentioned Bluetooth signal may be a signal transmitted by the Bluetooth communication module 400 during part or all of the process of establishing the Bluetooth connection by the Bluetooth communication module 400 .
  • establishing a Bluetooth connection may be the first time establishing a connection with other Bluetooth devices, or may be re-establishing a Bluetooth connection (reconnection) with a certain Bluetooth device, or may be a connection process of re-pairing after the Bluetooth connection information is erased.
  • the Bluetooth device in the process of establishing a Bluetooth connection, the Bluetooth device may be in the states of page page, page scan page scan, inquiry inquiry, inquiry scan inquiry scan, etc., and may switch between different states.
  • the inventor's research found that, especially in the paging or query state, it is necessary to send bluetooth signals, such as ID packets, in each frequency band according to the bluetooth frequency hopping protocol, and wait for feedback, so that the bluetooth signal is transmitted and the bluetooth signal is not transmitted alternately. Therefore, the fluctuation of the output current of the power supply will increase, which may cause electronic devices such as batteries and inductors to generate a large electromagnetic field, which in turn interferes with sensitive devices such as speakers to generate noise such as current sound.
  • the Bluetooth headset as an example, if the Bluetooth connection is suddenly disconnected during the user's use, the main headset of the Bluetooth headset will enter the paging state to try to connect to the mobile phone.
  • FIG. 3 is a schematic diagram of a second structure of a Bluetooth device provided by an embodiment of the application.
  • the Bluetooth communication module 400 may include a Bluetooth circuit 420 and an antenna radiator 440 , and the Bluetooth circuit 420 is configured to control the antenna radiator 440 , the power supply 200 and the electrical consumer 600 .
  • the Bluetooth circuit 420 can control the antenna radiator 440 through direct or indirect electrical connection, such as controlling the antenna radiator 440 to transmit Bluetooth signals, or controlling the antenna radiator 440 not to transmit Bluetooth signals.
  • the Bluetooth circuit 420 can control the power supply 200 by being directly or indirectly electrically connected, for example, controlling the power supply 200 to supply or not supply power to various devices, as well as the current of the power supply.
  • the Bluetooth circuit 420 may be integrated into one chip, or different parts of the Bluetooth circuit 420 may be integrated into different chips or other packaging structures.
  • FIG. 4 which is a third schematic structural diagram of a Bluetooth device provided by an embodiment of the present application
  • the Bluetooth circuit 420 may include a Bluetooth main control circuit 422 and a radio frequency circuit 424
  • the Bluetooth main control circuit 422 is a Bluetooth function
  • the main control center, the bluetooth main control circuit 422 can control it by directly or indirectly connecting with the radio frequency circuit 424, and the radio frequency circuit 422 can be directly electrically connected with the antenna radiator 440 or indirectly electrically connected through other devices.
  • the control circuit 422 can control the antenna radiator 440 through the radio frequency circuit 424 .
  • the radio frequency circuit 420 may include a radio frequency transceiver module and a modulation and demodulation module.
  • the radio frequency transceiver module may be used to transmit and receive radio frequency signals, and the modulation and demodulation module may be used to process the radio frequency signal to realize signal modulation and demodulation.
  • the antenna radiator 440 may be disposed on the outer surface of the Bluetooth device 20, or may be disposed inside the Bluetooth device 20, and the antenna radiator 440 may be used for transmitting radio frequency signals.
  • the radio frequency signal may include a Bluetooth signal, or may include other signals, so that one antenna radiator 440 can transmit two or more signals at the same time.
  • the Bluetooth circuit 420 may be configured to control the electrical appliance 600 to conduct with the power source 200 .
  • FIG. 5 is a schematic diagram of a fourth structure of a Bluetooth device provided by an embodiment of the present application.
  • the Bluetooth device 20 may include a first switch 920 and a second switch 940, and the first switch 920 and the second switch 940 are single-pole single-throw switches.
  • the Bluetooth main control circuit 422 is electrically connected to the power supply 200 , and the power supply 200 can provide power for the operation of the Bluetooth main control circuit 422 .
  • the Bluetooth main control circuit 422 is electrically connected to the radio frequency circuit 424 through the first switch 920 , and the Bluetooth main control circuit 422 can control the state of the radio frequency circuit 424 by controlling the closing or opening of the first switch 920 .
  • the bluetooth main control circuit 422 is electrically connected to the electrical appliance 600 through the second switch 940, and the bluetooth main control circuit 422 can control the state of the radio frequency circuit 424 by controlling the closing or opening of the second switch 940.
  • the first switch 920 may have a first port and a second port, the first port may be connected to the radio frequency circuit 424 , and the second port may be connected to the Bluetooth master control circuit 422 .
  • the bluetooth main control circuit 422 can control the radio frequency circuit 424 to communicate with the bluetooth main control circuit 422 by controlling the connection between the first port and the second port, thereby controlling the radio frequency circuit 424 to cooperate with the antenna radiator 440 to transmit the bluetooth signal; the bluetooth main control The circuit 422 can control the radio frequency circuit 422 and the antenna radiator 440 not to transmit Bluetooth signals by controlling the disconnection of the first port and the second port.
  • the bluetooth main control circuit 422 can also keep the first switch 920 closed, and control the radio frequency circuit 424 and/or the antenna radiator 440 to not work through software or other methods, so as to achieve the purpose of not transmitting bluetooth signals.
  • the second switch 940 may have a third port and a fourth port, the third port may be connected to the Bluetooth master circuit 422 , and the fourth port may be connected to the electrical appliance 600 .
  • the Bluetooth main control circuit 422 can control the connection between the third port and the fourth port to control the electrical appliance 600 to conduct conduction with the power source 200 through the Bluetooth main control circuit 422 , so that the power source 200 can output current for the electrical appliance 600 .
  • the Bluetooth master control circuit 422 can control the power supply 200 and the electrical appliance 600 to be disconnected by controlling the third port and the fourth port to be disconnected, so that the electrical appliance 600 does not consume the power of the power supply 200 .
  • the bluetooth main control circuit 422 can also keep the second switch 940 closed, and control the electrical appliance 600 through software or other methods for the purpose of not consuming power or consuming less power.
  • the Bluetooth master control circuit 422 in this embodiment of the present application can control the states of the first switch 920 and the second switch 940 , so as to realize the signal transmission state of the radio frequency circuit 424 and/or the antenna radiator 440 and the power consumption of the electrical appliance 600 status is controlled.
  • the Bluetooth master control circuit 422 may be configured to control the first switch 920 to be closed and the second switch 940 to be opened, and the Bluetooth master control circuit 422 may also be configured to control the first switch 920 to be opened and the second switch 940 to be closed.
  • the radio frequency circuit 424 and the antenna radiator 440 can be in a working state to transmit a Bluetooth signal, and the electrical appliance 600 does not consume power.
  • the radio frequency circuit 424 and the antenna radiator 440 can be made to be in an idle state without transmitting Bluetooth signals, and the electrical appliance 600 can consume power.
  • the first switch 920 and the second switch 940 shown in FIG. 5 may be integrated with the Bluetooth communication module 400 as a processing chip, or the Bluetooth communication module 400 may be integrated into a single processing chip, the first switch 920 And the second switch 940 is externally connected outside the processing chip.
  • the Bluetooth communication module 400 of the embodiment of the present application may directly use the Bluetooth chip in the Bluetooth device, or the setting of the Bluetooth communication module 400 may be realized by adding an additional processing chip or processing circuit.
  • FIG. 6 is a schematic diagram of the fifth structure of the Bluetooth device provided by the embodiment of the present application.
  • the Bluetooth device 20 may only include one switch, for example, the Bluetooth device 20 may only include the first switch 920, and the first switch 920 may be a single-pole double-throw switch.
  • the first switch 920 may include an input end 920a, a first output end 920b and a second output end 920c, the input end 920a is connected to the Bluetooth master control circuit 422, the first output end 920b is connected to the radio frequency circuit 424, and the second output end 920c is connected to the electrical appliance 600 .
  • the Bluetooth main control circuit 422 can control the radio frequency circuit 424 to be in a working state by controlling the connection between the input end 920a and the first output end 920b to transmit Bluetooth signals together with the antenna radiator 440. At this time, the input end 920a and the second output end 920c are not connected. Connected so that the electrical appliance 600 does not consume the power of the power source 200 .
  • the first output end 920b is connected to the radio frequency circuit 424
  • the second output end 920c is connected to the electrical appliance 600 .
  • the Bluetooth master control circuit 422 can also control the connection between the input terminal 920a and the second output terminal 920c to enable the power source 200 to output power to the electrical appliance 600. At this time, the input terminal 920a and the first output terminal 920b are disconnected and the radio frequency circuit 424 is in an idle state. without emitting a bluetooth signal.
  • the first switch 920 shown in FIG. 6 may be integrated with the Bluetooth communication module 400 into a processing chip, or the Bluetooth communication module 400 may be integrated into a processing chip alone, and the first switch 920 may be externally connected to the processing chip.
  • the power supply 200 may not need to be controlled by the Bluetooth circuit 420 .
  • the power supply 200 may control the current output of the power supply 200 according to the communication situation of the Bluetooth circuit 420 .
  • the power supply 200 may not provide current or provide the first set current to the electrical appliance 600 when learning that the bluetooth circuit 420 transmits a bluetooth signal, and provide the electrical appliance 600 with a second current when learning that the bluetooth circuit 420 does not transmit a bluetooth signal.
  • the current is set so that the output current of the power supply 200 is within the first preset range during part or all of the process of establishing the Bluetooth.
  • FIG. 7 is a schematic diagram of a sixth structure of a Bluetooth device provided by an embodiment of the present application.
  • the Bluetooth device 20 in this embodiment of the present application may further include a sound module 800, and the sound module 800 may be used to transmit sound signals.
  • the sound module 800 may include a sound module and/or a sound collection module, and the sound module may convert electrical signals into sound signals. , such as a speaker; a sound collection device can convert the sound signal into an electrical signal, such as a microphone.
  • the sound module 800 in this embodiment of the present application may only include a sound module, for example, when the Bluetooth device 20 is a Bluetooth speaker, the sound module 800 may only include a speaker but not a microphone.
  • the sound module 800 may also only include a sound collection module, such as when the Bluetooth device 20 is a Bluetooth recording device, the sound module 800 may only include a microphone but not a speaker.
  • the sound module 800 may also include a sound-emitting module and a sound-collecting module.
  • the wireless Bluetooth headset can not only emit sound signals, but also convert the sound signals into electrical signals and transmit them to other devices.
  • the sound module 800 can be connected with the Bluetooth communication module 400 to play or collect sound signals.
  • the Bluetooth circuit 420 can be directly or indirectly connected with the sound module 800, and it can collect and/or play sound signals through the sound module 800.
  • the sound module 800 transmits sound signals, it is easily affected by the electromagnetic radiation of surrounding devices, such as the power supply 200, to generate electromagnetic noise, which makes the user's hearing experience poor.
  • the low electromagnetic radiation intensity of the power supply 200 in the embodiment of the present application can reduce the influence of electromagnetic radiation on the sound module 800, thereby reducing the electromagnetic noise of the sound signal transmitted by the sound module 800, thereby improving user experience.
  • the above-mentioned Bluetooth device 20 may be a Bluetooth headset 40 as shown in FIG. 8
  • the preset device may be a mobile terminal 60 (smart phone) as shown in FIG. 8
  • a user can control the Bluetooth headset 40 to transmit Bluetooth signal, and establish a wireless connection with the mobile terminal 60 through the Bluetooth signal, so that the Bluetooth headset 40 can interact with the mobile terminal 60 (for example, the mobile terminal 60 can play audio through the Bluetooth headset 40, or make a call through the Bluetooth headset 40, etc.).
  • the Bluetooth headset when the Bluetooth device 20 is a Bluetooth headset, the Bluetooth headset further includes a wearing detection module (not shown), such as a capacitive sensor, which can be connected to the Bluetooth communication module 400 and can send wearing status information to the device.
  • the bluetooth communication module or stored in the storage module, is obtained by the bluetooth communication module 400.
  • the electrical appliance 600 is used to control the noise (such as current sound) through the above method, so as to ensure the user's use of the At the same time control power consumption.
  • FIG. 9 is a schematic flowchart of a method for controlling a Bluetooth device provided by an embodiment of the application.
  • the control method for a Bluetooth device 20 in the embodiment of the application includes the following steps:
  • the electrical appliance 600 is controlled to be in a first state, and the power supply 200 outputs a first current.
  • the power supply 200 When the bluetooth signal is not transmitted, control the electrical appliance 600 to be in a second state, the power supply 200 outputs a second current, and the difference between the second current and the first current is within a first preset range.
  • the Bluetooth device 20 can control the electrical appliance 600 according to the transmission state of its Bluetooth signal.
  • the specific control module may be the Bluetooth communication module 400 described in the above application embodiments, and may also be other control modules, such as other processing chips or other control circuits in the Bluetooth device 20, and is not limited to the above application embodiments.
  • Bluetooth communication module 400 The transmission state of the Bluetooth signal can be detected and acquired by the Bluetooth communication module 400 in the above application embodiments, or acquired by other modules (such as other modules independent of the Bluetooth communication module 400 ) and then sent to the Bluetooth communication module 400 .
  • the Bluetooth device 20 knows that it is transmitting a Bluetooth signal, it controls the electrical appliance 600 to be in the first state, and the power supply 200 can output the first current at this time.
  • the Bluetooth device 20 knows that when it does not transmit the Bluetooth signal, the control appliance 600 is in the second state, and the power supply 200 can output the second current, and the difference between the second current and the first current is within the first preset range.
  • the first state, the first current, and the first preset range reference may be made to the relevant descriptions of the above application embodiments, and details are not described herein again.
  • step 101 may include: controlling the electrical appliance 600 to be disconnected from the power source 200 or controlling the power source 200 to output a third current to the electrical appliance 600 when the Bluetooth signal is transmitted.
  • Step 102 may include: when the Bluetooth signal is not being transmitted, controlling the electrical appliance 600 to remain connected to the power source 200 , or controlling the power source 200 to output a fourth current to the electrical appliance 600 .
  • the Bluetooth device 20 can control the states of the electrical appliance 600 and the power source 200 through hardware control, wherein the hardware control method can be referred to the descriptions in FIG. 5 and FIG. 6 in the above application embodiment.
  • the Bluetooth device 20 can also control the states of the electrical appliance 600 and the power source 200 by means of software control.
  • the relevant descriptions in the above application embodiments please refer to the relevant descriptions in the above application embodiments.
  • step 102 it may further include: 103, after completing the Bluetooth connection, keep the electrical appliance in the third state, so that the power supply does not output current or output a seventh current for the electrical appliance.
  • the above-mentioned Bluetooth connection includes part or all of the process of establishing the Bluetooth connection.
  • establishing a Bluetooth connection may be the first time establishing a connection with other Bluetooth devices, or may be re-establishing a Bluetooth connection (reconnection) with a certain Bluetooth device, or may be a connection process of re-pairing after the Bluetooth connection information is erased.
  • the Bluetooth device may be in the states of page page, page scan page scan, inquiry inquiry, inquiry scan inquiry scan, etc., and may switch between different states.
  • the inventor's research found that, especially in the paging or query state, it is necessary to send bluetooth signals, such as ID packets, in each frequency band according to the bluetooth frequency hopping protocol, and wait for feedback, so that the bluetooth signal is transmitted and the bluetooth signal is not transmitted alternately. Therefore, the fluctuation of the output current of the power supply will increase, which may cause electronic devices such as batteries and inductors to generate a large electromagnetic field, which in turn interferes with sensitive devices such as speakers to generate noise such as current sound.
  • the Bluetooth headset as an example, if the Bluetooth connection is suddenly disconnected during the user's use, the main headset of the Bluetooth headset will enter the paging state to try to connect to the mobile phone.
  • the Bluetooth device 20 can control the electrical appliance 600 to be in the third state, so that the power source 200 does not output current for the electrical appliance 600 or outputs a seventh current for the electrical appliance 600, so that the bluetooth device 20 is in the third state.
  • the electrical appliance 600 consumes no power or consumes less power, and controls the output current of the power supply 200 to reduce the current noise caused thereby.
  • the wearing state of the Bluetooth headset can also be determined before performing the above steps.
  • the above steps 101, 102, etc. can be performed, which can save a certain amount of power consumption. .
  • Embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored, when the computer program is executed on a computer, the computer is made to execute the control method for a Bluetooth device provided by this embodiment. step.
  • the computer program may be stored in the memory and executed by at least one processor, and the execution process may include the flow of the embodiment of the control method of the Bluetooth device.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM, Read Only Memory), a random access memory (RAM, Random Access Memory), and the like.
  • the Bluetooth headset 40 may include a Bluetooth communication module 41 , a power supply 42 , an electrical appliance 43 and The speaker 44 and the power source 42 are configured to provide current for the Bluetooth communication module 41, the electrical appliance 43 and the speaker 44, and during all or part of the process of establishing the Bluetooth connection by the bluetooth communication module 41, the electrical appliance 43 makes the output of the power source 42.
  • the current is controlled within a second preset range.
  • the process of establishing a Bluetooth connection may include a connection back process and a pairing process, or may only include a connection back process or a pairing process.
  • the second preset range is a preset range, which can be set according to the electromagnetic noise generated by the speaker 44, so that when the current output by the power supply 42 is within the second preset range, the electromagnetic noise generated by the speaker 44 Within the preset range, the user's listening experience is improved.
  • the second preset range may be the same as the above-mentioned first preset range, or may be different from the first preset range.
  • the noise generated by the equivalent magnetic field generated by the power supply 42 to the speaker 44 is within the third preset range.
  • the third preset range may be a preset range, and when the noise generated by the equivalent magnetic field generated by the power supply 42 to the speaker 44 is within the third preset range, it may not be perceived by the user. For example, control it in the range below the decibel that the user's ear can hear.
  • the current output by the power supply 42 is controlled to be within the second preset range by the electrical appliance 43, which may include: when the Bluetooth communication module 41 transmits a Bluetooth signal, The power source 42 does not provide current for the electrical appliance 43 , and when the Bluetooth communication module 41 does not transmit a bluetooth signal, the power source 42 provides a preset current for the electrical appliance 43 .
  • the bluetooth communication module 41 when the bluetooth communication module 41 transmits a bluetooth signal, the power supply 42 will provide current for it, but not for the electrical appliance 43; when the bluetooth communication module 41 does not transmit a bluetooth signal, the bluetooth communication module 41 phase Compared with the process of transmitting the bluetooth signal, it consumes less current to the power supply 42, so that the current output by the power supply 42 has a larger jitter. In the case of a large current jitter, the power supply 42 will emit a larger electromagnetic force. radiation.
  • the power supply 200 and the electrical appliance 43 are kept connected, and the electrical appliance 43 can consume a part of the current of the power supply 42, thereby reducing the consumption of the bluetooth communication module 41 when the bluetooth communication module 41 does not transmit a bluetooth signal.
  • the magnitude of the sudden drop in the current of the power supply 200 further reduces the electromagnetic radiation intensity of the power supply 200 .
  • the current output by the power supply 42 is controlled to be within the second preset range by the electrical appliance 43, including: when the Bluetooth communication module 41 transmits a Bluetooth signal , the power source 42 provides the fifth current for the electrical appliance 43 , and when the Bluetooth communication module 41 does not transmit the bluetooth signal, the power source 42 provides the sixth current for the electrical appliance 43 . It can be understood that when the Bluetooth communication module 41 transmits the Bluetooth signal and does not transmit the Bluetooth signal, the power supply 42 and the electrical appliance 43 are always kept on, so that the power supply 42 is the electrical appliance 43 in these two states.
  • the noise generated by the electromagnetic field generated by the power supply 42 interfering with the speaker 44 is in a third preset range, thereby reducing the noise of the speaker 44 44
  • the purpose of the electromagnetic noise generated may be the same as or different from the values of the first current and the third current in the above application embodiments; the value of the sixth current may be the same as the second current and the third current in the above application embodiments.
  • the value of the fourth current is the same or may be different.
  • the power supply 42 may be configured to control the speaker 44 to generate the noise by making the current output by the power supply 42 constant through the electrical appliance 43 during all or part of the process of establishing the Bluetooth connection by the Bluetooth communication module 41 .
  • the value of the fifth current can be equal to the value of the sixth current.
  • being constant can also be understood as a small fluctuation, so that the power supply 42 can output the current stably within a preset period of time, and the power supply 42 will not generate current.
  • the electromagnetic radiation, or the generated electromagnetic radiation is negligible, thereby reducing the current sound to the effect of increasing the sound signal transmitted by the speaker 44 .
  • the above-mentioned Bluetooth signal is a signal transmitted by the Bluetooth communication module 41 during part or all of the process of establishing the Bluetooth connection by the Bluetooth communication module 41 .
  • the process of establishing a Bluetooth connection may include a connection back process and a pairing process, or may only include a connection back process or a pairing process.
  • the bluetooth communication module 41 completes the bluetooth connection, in general, due to the relatively continuous transmission of bluetooth signals, the fluctuation of the output current of the power supply is relatively weak, the electromagnetic field generated by the power supply is relatively weak, and the interference to the speakers and other devices is also relatively weak. It is relatively low, and the resulting current sound becomes weaker.
  • the power supply 42 can be kept from outputting current for the electrical appliance 43, so that the electrical appliance 43 does not consume power when the Bluetooth communication module 41 is connected, thereby reducing the power consumption of the power supply 42. .
  • keeping the power supply 42 from supplying current to the electrical appliance 43 includes: disconnecting the power supply 42 from the electrical appliance 43, and of course other methods, such as control through a power management circuit, are also possible.
  • the specific structure of the Bluetooth communication module 41 in this embodiment of the application and the relationship with other devices may be the same as the Bluetooth communication module 400 in the above application embodiment.

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Abstract

一种蓝牙设备，还提供一种蓝牙耳机及蓝牙设备的控制方法，蓝牙设备包括蓝牙通信模块、用电器和电源，电源可为蓝牙通信模块和用电器提供电流，当蓝牙通信模块发射蓝牙信号时，用电器处于第一状态，电源输出第一电流；当蓝牙通信模块不发射蓝牙信号时，用电器处于第二状态，电源输出第二电流；第一电流和第二电流的差值在第一预设范围内。

Description

蓝牙设备、蓝牙耳机及蓝牙设备的控制方法
本申请要求于2021年02月09日提交中国专利局、申请号为202110181549.5、发明名称为“蓝牙设备以及蓝牙耳机”以及申请号为202120373046.3、发明名称为“蓝牙设备以及蓝牙耳机”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电子技术领域，特别涉及一种蓝牙设备、蓝牙耳机及蓝牙设备的控制方法。
背景技术
近年来，无线技术的发展给人们的生活带来了极大的便利。其中，使用蓝牙技术的各类蓝牙产品更是深受人们喜爱。
发明内容
本申请实施例提供一种蓝牙设备、蓝牙耳机及蓝牙设备的控制方法。
第一方面，本申请实施例提供一种蓝牙设备，包括蓝牙通信模块、电源和用电器，所述电源被配置为可为所述蓝牙通信模块和所述用电器提供电流，当所述蓝牙通信模块发射蓝牙信号时，所述用电器处于第一状态，所述电源输出第一电流；当所述蓝牙通信模块不发射所述蓝牙信号时，所述用电器处于第二状态，所述电源输出第二电流；所述第一电流和所述第二电流的差值在第一预设范围内。
第二方面，本申请实施例提供一种蓝牙耳机，包括蓝牙通信模块、电源、用电器和扬声器，所述电源被配置为可为蓝牙通信模块、用电器和扬声器提供电流，以及在所述蓝牙通信模块建立蓝牙连接的全部或部分过程中，在所述蓝牙通信模块发射蓝牙信号时，所述电源不为所述用电器提供电流或为所述用电器提供第四电流，以及在所述蓝牙通信模块不发射蓝牙信号时，所述电源为所述用电器提供预设电流，以使得所述电源所输出的电流被控制在第二预设范围内。
第三方面，本申请实施例提供一种蓝牙设备的控制方法，所述蓝牙设备包括电源和用电器，所述方法包括：
在发射蓝牙信号时，控制所述用电器处于第一状态，所述电源输出第一电流；
在不发射蓝牙信号时，控制所述用电器处于第二状态，所述电源输出第二电流，所述第一电流和所述第二电流的差值处于第一预设范围内。
附图说明
图1为本申请实施例提供的蓝牙设备的第一种结构示意图。
图2为本申请实施例提供的时序控制图。
图3为本申请实施例提供的蓝牙设备的第二种结构示意图。
图4为本申请实施例提供的蓝牙设备的第三种结构示意图。
图5为本申请实施例提供的蓝牙设备的第四种结构示意图。
图6为本申请实施例提供的蓝牙设备的第五种结构示意图。
图7为本申请实施例提供的蓝牙设备的第六种结构示意图。
图8为本申请实施例提供的蓝牙设备的应用场景图。
图9为本申请实施例提供的蓝牙设备的控制方法的流程示意图。
图10为本申请实施例提供的蓝牙耳机的结构示意图。。
具体实施方式
本申请实施例提供一种蓝牙设备，其中，包括蓝牙通信模块、电源和用电器，所述电源被配置为可为所述蓝牙通信模块和所述用电器提供电流，当所述蓝牙通信模块发射蓝牙信号时，所述用电器处于第一状态，所述电源输出第一电流；当所述蓝牙通信模块不发射所述蓝牙信号时，所述用电器处于第二状态，所述电源输出第二电流；所述第一电流和所述第二电流的差值在第一预设范围内。
本申请一种可选的实施例中，在所述第一状态下，所述用电器与所述电源断开导通；在所述第二状态下，所述用电器与所述电源保持导通。
本申请一种可选的实施例中，在所述第一状态下，所述电源向所述用电器输出第三电流，在所述第二状态下，所述电源向所述用电器输出第四电流，以使所述第一电流与所述第二电流的差值在所述第一预设范围内。
本申请一种可选的实施例中，所述蓝牙信号为所述蓝牙通信模块建立蓝牙连接的部分或全部过程中所述蓝牙通信模块所发射的信号。
本申请一种可选的实施例中，所述第一电流与所述第二电流相等。
本申请一种可选的实施例中，所述电源被配置为在所述蓝牙通信模块完成所述蓝牙连接后，保持所述用电器处于第三状态，以使得所述电源不为所述用电器输出电流或输出第七电流。
本申请一种可选的实施例中，所述蓝牙设备包括声音模块，若所述蓝牙设备为蓝牙耳机，所述声音模块包括扬声器，所述扬声器与所述蓝牙通信模块连接，所述扬声器被配置用于播放声音信号。
本申请一种可选的实施例中，所述蓝牙通信模块包括蓝牙电路和天线辐射体，所述蓝牙电路分别与所述天线辐射体、所述电源、所述用电器和所述扬声器电连接。
本申请一种可选的实施例中，所述蓝牙电路被配置用于控制所述用电器与所述电源的导通；或，所述电源根据所述蓝牙电路的通信情况控制所述电源的电流输出。
本申请一种可选的实施例中，所述蓝牙电路包括蓝牙主控电路和射频电路，所述蓝牙主控电路和所述电源电连接；所述蓝牙主控电路还与所述用电器连接，以控制所述用电器的电流消耗；所述蓝牙主控电路通过所述射频电路与所述天线辐射体连接，以通过所述射频电路和所述天线辐射体收发蓝牙信号。
本申请一种可选的实施例中，所述蓝牙设备还包括第一开关和第二开关，所述第一开关的一端与所述蓝牙主控电路电连接，所述第一开关的另一端与所述射频电路电连接，所述第二开关的一端与所述蓝牙主控电路电连接，所述第二开关的另一端与所述用电器电连接。
本申请一种可选的实施例中，所述蓝牙设备还包括第一开关，所述第一开关包括输入端、第一输出端和第二输出端，所述输入端被配置为可电连接所述第一输出端或所述第二输出端，所述输入端与所述蓝牙主控电路电连接，所述第一输出端与所述射频电路电连接，所述第二输出端与所述用电器电连接。
本申请还提供一种蓝牙耳机，其中，包括蓝牙通信模块、电源、用电器和扬声器，所述电源被配置为可为蓝牙通信模块、用电器和扬声器提供电流，以及在所述蓝牙通信模块建立蓝牙连接的全部或部分过程中，在所述蓝牙通信模块发射蓝牙信号时，所述电源不为所述用电器提供电流或为所述用电器提供第四电流，以及在所述蓝牙通信模块不发射蓝牙信号时，所述电源为所述用电器提供预设电流，以使得所述电源所输出的电流被控制在第二预设范围内。
本申请一种可选的实施例中，当所述电源输出的电流被控制在第二预设范围内时，使得所述蓝牙耳机产生的噪声处于第三预设范围。
本申请一种可选的实施例中，所述电源被配置为在所述蓝牙通信模块建立蓝牙连接的全部或部分过程中，通过向所述用电器输出电流使得所述电源所输出的电流恒定，以控制所述蓝牙耳机产生的所述噪声。
本申请一种可选的实施例中，所述电源被配置为在所述蓝牙通信模块完成所述蓝牙连接后，保持所述电源不为所述用电器提供电流。
本申请一种可选的实施例中，所述保持所述电源不为所述用电器提供电流，包括：断开所述电源对所述用电器的供电。
本申请一种可选的实施例中，所述蓝牙通信模块包括蓝牙电路和天线辐射体，所述蓝牙电路分别与所述电源和所述天线辐射体电性连接，所述蓝牙电路被配置为控制所述天线辐射体发射或不发射所述蓝牙信号，以及控制所述电源为所述用电器供电或不供电。
本申请一种可选的实施例中，所述蓝牙电路包括蓝牙主控电路和射频电路，所述蓝牙主控电路和所述电源电连接；所述蓝牙主控电路还与所述用电器连接，以控制所述用电器的电流消耗；所述蓝牙主控电路通过所述射频电路与所述天线辐射体连接，以通过所述射频电路和所述天线辐射体收发蓝牙信号。
本申请还提供一种蓝牙设备的控制方法，其中，所述蓝牙设备包括电源和用电器，所述方法包括：
在发射蓝牙信号时，控制所述用电器处于第一状态，所述电源输出第一电流；
在不发射蓝牙信号时，控制所述用电器处于第二状态，所述电源输出第二电流，所述第一电流和所述第二电流的差值处于第一预设范围内。
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请实施例提供一种蓝牙设备，蓝牙设备可以为可使用蓝牙技术的任何设备，比如蓝牙设备可以为蓝牙耳机、蓝牙音箱、蓝牙鼠标、蓝牙手表、可使用蓝牙技术的蜂窝手机、可使用蓝牙技术的家用电器(诸如电视机、投影仪、电饭煲等)或者可使用蓝牙技术的其他产品。以下以蓝牙耳机为例进行具体说明。
如图1所示，图1为本申请实施例提供的蓝牙设备的第一种结构示意图。蓝牙设备20可包括电源200、蓝牙通信模块400、用电器600，电源200可以为蓝牙通信模块400以及用电器600的工作提供电能；蓝牙通信模块400可以用于传输蓝牙信号，以通过蓝牙信号与其他设备实现交互。
蓝牙通信模块400在蓝牙通信的过程中，由于发射蓝牙信号可能是不连续的，而发射蓝牙信号时功耗相对增加，不发射蓝牙信号时功耗相对降低，从而可能导致电源输出的电流发生波动，特别是在建立蓝牙连接的过程中，由于频繁的在发送蓝牙信号和不发射蓝牙 信号之间切换导致电源输出电流波动频繁，从而使得电源产生较大的电磁场，其会发出相应的电磁辐射，这种电磁辐射会对蓝牙设备20的其他器件产生电磁干扰，特别是扬声器等敏感器件，从而产生噪声，例如电流声，影响用户的使用感受。
需要说明的是，电流声的来源主要有电子元器件对喇叭的干扰，电子元器件可以是功率电感、电池等。本申请中，该电源包括电池，当然也可以包括电源管理电路等，此外，电源管理电路也可以集成在蓝牙通信模块中，也可以单独设置，对此不做限制。
本申请实施例从实际情况出发，在蓝牙设备20中增设用电器600，用电器600可以为任何用电设备，只要其可使电源200为其输出电能即可，比如用电器600可以为单一的电阻，电阻相比于相关技术中在电池外部缠绕屏蔽材料，其体积较小，可以减小用电器600对蓝牙设备20的内部空间的占用，使得蓝牙设备20可以更加小型化。当然，用电器600也可以为电阻、电感、电容、三极管、放大器或其他电子元器件中的一个或多个组成的可消耗电能的任何电路。
电源200被配置为可为蓝牙通信模块400和用电器600提供电流，当蓝牙通信模块400发射蓝牙信号时，用电器600处于第一状态，电源200输出第一电流；当蓝牙通信模块400不发射所述蓝牙信号时，用电器600处于第二状态，电源200输出第二电流；第一电流和第二电流的差值在第一预设范围内。
其中，第一预设范围为预先设定的范围，其可以根据电源200所产生的电磁辐射情况进行设置，也可以根据电流声情况来进行设置，以达到当第一电流和第二电流的差值处于第一预设范围时，相比于未设置用电器600，可以降低电源200的电磁辐射，从而降低蓝牙设备20的噪声。
本申请实施例中，电源200在发射蓝牙信号和不发射蓝牙信号时均可对外输出电流，且输出的电流相对稳定，可以有效降低电源200的电磁场辐射强度。
示例性的，可以控制在第一状态下，用电器600与电源200断开导通，此时电源200不为用电器600输出电流；可以控制在第二状态下，用电器600与电源200保持导通，此时电源200可以为用电器600输出电流。可以理解的是，当蓝牙通信模块400发射蓝牙信号时，电源200会为其提供电流，而不为用电器600提供电流；当蓝牙通信模块400不发射蓝牙信号时，此时蓝牙通信模块400相比于在发射蓝牙信号过程中，其对电源200所消耗的电流较少，使得电源200所输出的电流出现较大的抖动，电流抖动幅度大的情况下会使得电源200的发出较大的电磁辐射。然而本申请实施例在蓝牙通信模块400不发射蓝牙 信号时，保持电源200与用电器600导通，用电器600可以消耗电源200的一部分电流，从而减少蓝牙通信模块400不发射蓝牙信号时所消耗的电流突降幅度，进而降低了电源200的电磁辐射强度。
其中，第一电流的数值和第二电流的数值可以相等，比如结合图2进行具体说明，图2为本申请实施例提供的时序控制图。在0-t1，蓝牙通信模块400可以发射蓝牙信号，电源200向蓝牙通信模块400输出电能，此时电源200所输出的第一电流为I1，并保持用电器600与电源200断开导通，此时电源200为用电器所提供的电流为0或较小的数值。在t1-t2，蓝牙通信模块400可以不发射蓝牙信号，此时电源200为蓝牙通信模块400所提供的电流为0或较小的数值。并保持用电器600与电源200导通，此时电源200所输出的第二电流为I2。
本申请实施例中电源200所输出的第一电流I1的数值可以与电源200所输出的第二电流I2相等。因此，在0-t2时段，电源200所消耗的电源I2＝I1，即电源200在预设时段内可稳定地输出电流I3，不会出现由于一些时段有电流输出，一些时段没有电流输出而使得电源200产生较大电磁辐射，引起较大噪声，例如电流声。可以理解的是，本申请实施例通过增设用电器600，并在蓝牙通信模块400的不同情况下控制用电器600处于不同的状态，使得电源200可以在用电器600对应的状态下分别输出差值在第一预设范围内的第一电流和第二电流，从而可以有效降低蓝牙设备20中电源200的电磁场辐射强度，从而降低或避免因电源输出电流波动引起的噪声，影响用户使用。需要说明的是，0-t1和t1-t2只是从时序中截取的两个时段，以进行具体说明，其余相邻两个时间的操作与0-t1和t1-t2这两个时段的操作相同。
还需要说明的是，本申请实施例中在第一状态下，电源200所消耗的第一电流I1的数值与在第二状态下，电源200所消耗的第二电流I2也可以不相等，比如第一电流I1可以小于或者大于第二电流I2，此时电源200散发出一部分电磁辐射，然而可以通过控制第一电流I1和第二电流I2之间的差值，使得第一电流I1和第二电流I2处于第一预设范围内，将电源200的电磁辐射控制在较低水平。只是若电源200所消耗的第一电流I1的数值与电源200所消耗的第二电流I2相等时，对电源200的电磁辐射的控制效果更好。
可以理解的，第一电流与第二电流相等是较为理想的状态，在实际应用中，可以通过用电器将电源在发射蓝牙信号情况下输出的第一电流和不发射蓝牙信号情况下输出的第二电流的差值控制在第一预设范围内(包括第一电流与第二电流相等，也包括不相等的情况) 即可，例如，通过实验测定电源输出电流在某个范围内波动不会使得蓝牙设备(如蓝牙耳机)产生噪声(例如电流声)或者产生的噪声小于预设的阈值，从而不会影响用户使用，比如，不足以使用户感知到电流声，从而可以将该某个范围作为第一预设范围，或者根据该某个范围确定第一预设范围。
需要说明的是，电源200和用电器600之间的关系并不限于此。比如，在第一状态下，电源200可以向用电器600输出第三电流，在第二状态下，电源200向用电器600输出第四电流，以使第一电流与第二电流的差值在第一预设范围内。可以理解的是，在蓝牙通信模块400发射蓝牙信号和不发射蓝牙信号时，始终保持电源200和用电器600导通，使得电源200在这两种状态下均为用电器600输出电流，而且可以通过控制两种状态下所输出的电流的数值大小(即第三电流和第四电流的数值大小)，使得电源200在第一状态下所输出的第一电流以及在第二状态下所输出的第二电流之间的差值处于第一预设范围内，从而达到降低电源200的电磁辐射强度的目的。
本申请实施例中，电源200、蓝牙通信模块400和用电器600之间的控制关系可以采用开关或者其他硬件的方式进行物理控制，或者电源200可以始终保持与蓝牙通信模块400和用电器600保持硬件上的电性连接，然后通过软件的方式或其他方式控制电源200为蓝牙通信模块400供电或不供电，和/或控制电源200为用电器600供电或不供电。
本申请实施例中，以上所述的蓝牙信号可以为蓝牙通信模块400在建立蓝牙连接的部分或全部过程中，蓝牙通信模块400所发射的信号。其中，建立蓝牙连接，可以是首次与其他蓝牙设备建立连接，也可以是与某个蓝牙设备重新建立蓝牙连接(回连)，也可以是蓝牙连接信息被擦除后重新配对的连接过程。一般来说，在建立蓝牙连接过程中，蓝牙设备可能处于寻呼page、寻呼扫描page scan、查询inquiry、查询扫描inquiry scan等状态，并可能在不同状态之间进行切换。经发明人研究发现，特别当在寻呼或查询状态下，需要根据蓝牙跳频协议在各个频段发送蓝牙信号，例如ID包，并等待反馈，从而使得发射蓝牙信号和不发射蓝牙信号的交替变得更为频繁，因此引起的电源输出电流的波动会增大，从而可能使得电池、电感等电子器件产生较大电磁场，进而干扰喇叭等敏感器件产生电流声等噪声。以蓝牙耳机为例，假如在用户使用过程中，蓝牙连接突然断开，蓝牙耳机的主耳机会进入寻呼状态，去试图回连手机，在寻呼状态下由于频繁的发射ID包和等待反馈，导致电源输出电流变化较大且频繁，电池和功率电感等可能由此产生较大电磁场，进而干扰喇叭等产生电流声。因此，可以在建立蓝牙连接的部分或全部过程中，例如仅在寻呼和查询 状态下，也可以在所有蓝牙状态下，也可以从启动蓝牙连接到建立同步或异步传输链路的全过程，甚至可以包含配对paring的过程，具体的可参考蓝牙协议，在此不做限制。
当蓝牙通信模块400完成蓝牙连接后，可以保持用电器600保持在第三状态，以使得电源200不为用电器600输出电流或为用电器600输出第七电流，使得蓝牙通信模块400在连接状态下，用电器600不消耗电能或消耗较少电能，控制电源200的输出电流，减少由此引发的电流声。如图3所示，图3为本申请实施例提供的蓝牙设备的第二种结构示意图。蓝牙通信模块400可以包括蓝牙电路420和天线辐射体440，蓝牙电路420被配置为控制天线辐射体440、电源200和用电器600。比如蓝牙电路420可以通过与天线辐射体440直接或间接电性连接的方式对其实现控制，诸如控制天线辐射体440发射蓝牙信号，或者控制天线辐射体440不发射蓝牙信号。蓝牙电路420可以通过与电源200直接或间接电性连接的方式对其实现控制，比如控制电源200为各类器件的供电或不供电，以及供电的电流等。
其中，蓝牙电路420可以集成为一个芯片，也可以将蓝牙电路420中的不同部分集成为不同芯片或其他封装结构。比如，如图4所示，图4为本申请实施例提供的蓝牙设备的第三种结构示意图，蓝牙电路420可以包括蓝牙主控电路422和射频电路424，蓝牙主控电路422为蓝牙功能的主控中心，蓝牙主控电路422可以通过与射频电路424直接电连接或间接连接的方式对其实现控制，射频电路422可以与天线辐射体440直接电连接或通过其他器件间接电连接，蓝牙主控电路422可以通过射频电路424控制天线辐射体440。射频电路420可以包括射频收发模块和调制解调模块，射频收发模块可以用于收发射频信号，调制解调模块可以用于对射频信号进行处理以实现信号的调制与解调。天线辐射体440可以设置在蓝牙设备20的外表面，也可以设置在蓝牙设备20的内部，天线辐射体440可以用于传输的射频信号。该射频信号可以包括蓝牙信号，也可以包括其他信号，以实现一个天线辐射体440可同时传输两种或两种以上的信号。
其中，蓝牙电路420可以被配置为用于控制用电器600与电源200导通。示例性的，如图5所示，图5为本申请实施例提供的蓝牙设备的第四种结构示意图。蓝牙设备20可以包括第一开关920和第二开关940，第一开关920和第二开关940为单刀单掷开关。蓝牙主控电路422与电源200电连接，电源200可以为蓝牙主控电路422的工作提供电能。蓝牙主控电路422通过第一开关920与射频电路424电连接，蓝牙主控电路422可以通过控制第一开关920的闭合或断开控制实现对射频电路424的状态控制。蓝牙主控电路422通 过第二开关940与用电器600电连接，蓝牙主控电路422可以通过控制第二开关940的闭合或断开实现对射频电路424的状态控制。
比如，第一开关920可以具有第一端口和第二端口，第一端口可以与射频电路424连接，第二端口可以与蓝牙主控电路422连接。蓝牙主控电路422可以通过控制第一端口和第二端口的连通来控制射频电路424与蓝牙主控电路422连通，从而控制射频电路424可以与天线辐射体440一起配合发射蓝牙信号；蓝牙主控电路422可以通过控制第一端口和第二端口的断开，从而控制射频电路422与天线辐射体440不发射蓝牙信号。
当然，蓝牙主控电路422也可以保持第一开关920闭合，通过软件或其他方式控制射频电路424和/或天线辐射体440不工作，而达到不发射蓝牙信号的目的。
第二开关940可以具有第三端口和第四端口，第三端口可以与蓝牙主控电路422连接，第四端口可以与用电器600连接。蓝牙主控电路422可以通过控制第三端口和第四端口的连通来控制用电器600可通过蓝牙主控电路422与电源200导通，从而使得电源200可为用电器600输出电流。蓝牙主控电路422可以通过控制第三端口和第四端口不连通来控制电源200和用电器600不导通，从而实现用电器600不消耗电源200的电能的情况。
当然，蓝牙主控电路422也可以保持第二开关940闭合，通过软件或其他方式控制用电器600不消耗电能或少消耗电能的目的。
本申请实施例的蓝牙主控电路422可以对第一开关920和第二开关940的状态进行控制，从而实现对射频电路424和/或天线辐射体440的信号发射状态以及用电器600的电能消耗状态进行控制。比如蓝牙主控电路422可以被配置为控制第一开关920闭合且控制第二开关940断开，而且蓝牙主控电路422还可以被配置为控制第一开关920断开且控制第二开关940闭合。当第一开关920闭合且第二开关940断开时，可以使得射频电路424和天线辐射体440处于工作状态而发射蓝牙信号，且使得用电器600不消耗电能。当第一开关920断开且第二开关940闭合时，可以使得射频电路424和天线辐射体440处于空闲状态而不发射蓝牙信号，且使得用电器600消耗电能。
其中，图5所示的第一开关920和第二开关940中的一个或两个可以与蓝牙通信模块400集成为一个处理芯片，也可以蓝牙通信模块400单独集成一个处理芯片，第一开关920和第二开关940外接在处理芯片之外。而且本申请实施例的蓝牙通信模块400可以直接采用蓝牙设备中的蓝牙芯片，也可以通过额外增设一个处理芯片或处理电路的方式实现蓝牙通信模块400的设置。
需要说明的是，本申请实施例的蓝牙设备20的结构并不限于此，比如如图6所示，图6为本申请实施例提供的蓝牙设备的第五种结构示意图。蓝牙设备20可以只包括一个开关，比如蓝牙设备20可以只包括第一开关920，第一开关920可以为单刀双掷开关。其中，第一开关920可以包括输入端920a、第一输出端920b和第二输出端920c，输入端920a与蓝牙主控电路422连接，第一输出端920b与射频电路424连接，第二输出端920c与用电器600连接。蓝牙主控电路422可以通过控制输入端920a和第一输出端920b的连通来控制射频电路424处于工作状态而与天线辐射体440一起发射蓝牙信号，此时输入端920a和第二输出端920c不连通而使得用电器600不消耗电源200的电能。第一输出端920b与射频电路424连接，第二输出端920c与用电器600连接。蓝牙主控电路422还可以通过控制输入端920a和第二输出端920c的连通来电源200为用电器600输出电能，此时输入端920a和第一输出端920b不连通而射频电路424处于空闲状态而不发射蓝牙信号。
其中，图6所示的第一开关920可以与蓝牙通信模块400集成为一个处理芯片，也可以蓝牙通信模块400单独集成一个处理芯片，第一开关920外接在处理芯片之外。
在其他一些实施例中，也可以无需通过蓝牙电路420控制电源200，替代性的，电源200可以根据蓝牙电路420的通信情况控制电源200的电流输出。比如电源200可以在获知蓝牙电路420发射蓝牙信号时，则不为用电器600提供电流或提供第一设定电流，以及在获知蓝牙电路420不发射蓝牙信号时，则为用电器600提供第二设定电流以使得电源200在建立蓝牙的部分或全部过程中，其所输出的电流处于第一预设范围内。
如图7所示，图7为本申请实施例提供的蓝牙设备的第六种结构示意图。本申请实施例的蓝牙设备20还可以包括声音模块800，声音模块800可以用于传输声音信号，比如声音模块800可以包括发声模块和/或声音收集模块，发声模块可以将电信号转换为声音信号，诸如扬声器；声音收集装置可以将声音信号转换为电信号，诸如麦克风。
可以理解的是，本申请实施例中的声音模块800可以仅包括发声模块，诸如当蓝牙设备20为蓝牙音箱时，其声音模块800可以只包括扬声器而不包括麦克风。声音模块800也可以仅包括声音收集模块，诸如当蓝牙设备20为蓝牙录音设备时，其声音模块800可以只包括麦克风而不包括扬声器。声音模块800也可以同时包括发声模块和声音收集模块，比如当蓝牙设备20为无线蓝牙耳机时，无线蓝牙耳机既可以发出声音信号，又可以将声音信号转换为电信号传输给其他设备。
其中，声音模块800可以与蓝牙通信模块400连接以播放或采集声音信号。比如蓝牙 电路420可以与声音模块800直接连接或间接连接，其可以通过声音模块800采集和/或播放声音信号。声音模块800在传输声音信号时，容易受到周围器件，诸如电源200的电磁辐射的影响而产生电磁噪声，使得用户的听感差。本申请实施例的电源200的电磁辐射强度低可以降低电磁辐射对声音模块800的影响，从而减少声音模块800所传输声音信号的电磁噪声，从而提升用户体验。
本申请实施例中，上述的蓝牙设备20可以为如图8所示的蓝牙耳机40，预设设备可以如图8所示的移动终端60(智能手机)，用户可以通过控制蓝牙耳机40传输蓝牙信号，并通过蓝牙信号与移动终端60建立无线连接，使得蓝牙耳机40可以与移动终端60实现交互(比如移动终端60可以通过蓝牙耳机40播放音频，或者通过蓝牙耳机40进行通话等)。
可以理解的，当蓝牙设备20为蓝牙耳机时，该蓝牙耳机还包括佩戴检测模块(未示出)，例如电容传感器，该佩戴检测模块可以与蓝牙通信模块400连接，可以将佩戴状态信息发送给蓝牙通信模块，或者存储在存储模块中，供蓝牙通信模块400获取，当蓝牙耳机处于佩戴状态时，才会使用用电器600通过上述方式实现噪声(如电流声)的控制，从而保障用户使用的同时控制功耗。
为了进一步了解本申请实施例的具体实施过程，以下从蓝牙设备的控制方法的角度进行说明。
如图9所示，图9为本申请实施例提供的蓝牙设备的控制方法的流程示意图，上述申请实施例的蓝牙设备20的控制方法包括以下步骤：
101，在发射蓝牙信号时，控制用电器600处于第一状态，电源200输出第一电流。
102，在不发射蓝牙信号时，控制用电器600处于第二状态，电源200输出第二电流，第二电流与第一电流的差值处于第一预设范围内。
蓝牙设备20可以根据其蓝牙信号的发射状态，对用电器600进行控制。具体的控制模块可以为上述申请实施例所述的蓝牙通信模块400，也可以为其他控制模块，比如蓝牙设备20内的其他处理芯片或其他控制电路，而并不限于上述申请实施例所述的蓝牙通信模块400。其中蓝牙信号的发射状态可以由上述申请实施例的蓝牙通信模块400自行检测获取，也可以由其他模块(诸如独立于蓝牙通信模块400的其他模块)获取后发送给蓝牙通信模块400。蓝牙设备20在获知其在发射蓝牙信号时，控制用电器600处于第一状态，此时电源200可以输出第一电流。蓝牙设备20获知其在不发射蓝牙信号时，控制用电器600处于第二状态，此时电源200可以输出第二电流，而且第二电流与第一电流的差值处于第一预 设范围内。其中，第一状态、第一电流以及第一预设范围的具体描述可参见上述申请实施例的相关描述，在此不再赘述。
其中，步骤101可以包括：在发射蓝牙信号时，控制用电器600与电源200断开导通或者控制电源200向用电器600输出第三电流。
步骤102可以包括：在不发射蓝牙信号时，控制用电器600与电源200保持导通，或者控制电源200向用电器600输出第四电流。
蓝牙设备20可以通过硬件控制，对用电器600和电源200的状态进行控制，其中硬件控制的方式可参见上述申请实施例中图5和图6的描述。当然蓝牙设备20也可以通过软件控制的方式对用电器600和电源200的状态进行控制，具体可参见上述申请实施例中的相关描述。
步骤102之后还可以包括：103，在完成蓝牙连接后，保持用电器处于第三状态，以使得电源不为用电器输出电流或输出第七电流。
本申请实施例中，以上所述的蓝牙连接包括建立蓝牙连接的部分或全部过程。其中，建立蓝牙连接，可以是首次与其他蓝牙设备建立连接，也可以是与某个蓝牙设备重新建立蓝牙连接(回连)，也可以是蓝牙连接信息被擦除后重新配对的连接过程。一般来说，在建立蓝牙连接过程中，蓝牙设备可能处于寻呼page、寻呼扫描page scan、查询inquiry、查询扫描inquiry scan等状态，并可能在不同状态之间进行切换。经发明人研究发现，特别当在寻呼或查询状态下，需要根据蓝牙跳频协议在各个频段发送蓝牙信号，例如ID包，并等待反馈，从而使得发射蓝牙信号和不发射蓝牙信号的交替变得更为频繁，因此引起的电源输出电流的波动会增大，从而可能使得电池、电感等电子器件产生较大电磁场，进而干扰喇叭等敏感器件产生电流声等噪声。以蓝牙耳机为例，假如在用户使用过程中，蓝牙连接突然断开，蓝牙耳机的主耳机会进入寻呼状态，去试图回连手机，在寻呼状态下由于频繁的发射ID包和等待反馈，导致电源输出电流变化较大且频繁，电池和功率电感等可能由此产生较大电磁场，进而干扰喇叭等产生电流声。因此，可以在建立蓝牙连接的部分或全部过程中，例如仅在寻呼和查询状态下，也可以在所有蓝牙状态下，也可以从启动蓝牙连接到建立同步或异步传输链路的全过程，甚至可以包含配对paring的过程，具体的可参考蓝牙协议，在此不做限制。
在完成上述蓝牙连接的部分或全部过程后，蓝牙设备20可以控制用电器600处于第三状态，使得电源200不为用电器600输出电流或为用电器600输出第七电流，使得蓝牙设 备20在连接状态下，用电器600不消耗电能或消耗较少电能，控制电源200的输出电流，减少由此引发的电流声。
可以理解的，当蓝牙设备20为蓝牙耳机时，在执行上述步骤之前还可以先确定蓝牙耳机的佩戴状态，当蓝牙耳机处于佩戴状态时，才执行上述步骤101,102等，这样可以节省一定的功耗。
本申请实施例还提供一种计算机可读存储介质，其上存储有计算机程序，当所述计算机程序在计算机上执行时，使得所述计算机执行如本实施例提供的蓝牙设备的控制方法中的步骤。例如，计算机程序可存储在存储器中，并被至少一个处理器执行，在执行过程中可包括如所述蓝牙设备的控制方法的实施例的流程。其中，所述的存储介质可为磁碟、光盘、只读存储器(ROM，Read Only Memory)、随机存取记忆体(RAM，Random Access Memory)等。
本申请实施例还提供另一种蓝牙耳机，如图10所示，图10为本申请实施例提供的蓝牙耳机的结构示意图，蓝牙耳机40可以包括蓝牙通信模块41、电源42、用电器43和扬声器44，电源42被配置为可为蓝牙通信模块41、用电器43和扬声器44提供电流，以及在蓝牙通信模块41建立蓝牙连接的全部或部分过程中，通过用电器43使得电源42所输出的电流被控制在第二预设范围内。其中，建立蓝牙连接的过程可以包括回连过程和进行配对过程，也可以仅包括回连过程或配对过程。第二预设范围为预先设定的范围，其可以根据扬声器44所产生的电磁噪声情况进行设定，使得电源42所输出的电流处于第二预设范围内时，扬声器44所产生的电磁噪声处于预设区间内，提高用户的听觉体验。第二预设范围可以与上述的第一预设范围相同，也可以与第一预设范围不同。
示例性的，当电源42输出的电流被控制在第二预设范围内时，电源42产生的等效磁场对扬声器44所产生的噪声处于第三预设范围。第三预设范围可以为预先设置的范围，当电源42产生的等效磁场对扬声器44所产生的噪声处于第三预设范围时，可以达到不被用户察觉的程度。比如将其控制在用户耳朵所能听到的分贝以下的范围内。
其中，在蓝牙通信模块41建立蓝牙连接的全部或部分过程中，通过用电器43使得电源42所输出的电流被控制在第二预设范围内可以包括：在蓝牙通信模块41发射蓝牙信号时，电源42不为用电器43提供电流，以及在蓝牙通信模块41不发射蓝牙信号时，电源42为用电器43提供预设电流。可以理解的是，当蓝牙通信模块41发射蓝牙信号时，电源42会为其提供电流，而不为用电器43提供电流；当蓝牙通信模块41不发射蓝牙信号时， 此时蓝牙通信模块41相比于在发射蓝牙信号过程中，其对电源42所消耗的电流较少，使得电源42所输出的电流出现较大的抖动，电流抖动幅度大的情况下会使得电源42的发出较大的电磁辐射。然而本申请实施例在蓝牙通信模块41不发射蓝牙信号时，保持电源200与用电器43导通，用电器43可以消耗电源42的一部分电流，从而减少蓝牙通信模块41不发射蓝牙信号时所消耗的电流突降幅度，进而降低了电源200的电磁辐射强度。
示例性的，在蓝牙通信模块41建立蓝牙连接的全部或部分过程中，通过用电器43使得电源42所输出的电流被控制在第二预设范围内包括：在蓝牙通信模块41发射蓝牙信号时，电源42为用电器43提供第五电流，以及在蓝牙通信模块41不发射蓝牙信号时，电源42为用电器43提供第六电流。可以理解的是，在蓝牙通信模块41发射蓝牙信号和不发射蓝牙信号时，始终保持电源42和用电器43导通，使得电源42在这两种状态下均为用电器43输出电流，而且可以通过控制两种状态下所输出的电流的数值大小(即第五电流和第六电流的数值大小)，电源42产生的电磁场对扬声器44干扰所产生的噪声处于第三预设范围，从而减少扬声器44所产生的电磁噪声的目的。需要说明的是，第五电流的数值可以与上述申请实施例中的第一电流、第三电流的数值相同，也可以不同；第六电流的数值可以与上述申请实施例中的第二电流和第四电流的数值相同，也可以不同。
本申请实施例中，电源42可以被配置为在蓝牙通信模块41建立蓝牙连接的全部或部分过程中，通过用电器43使得电源42所输出的电流恒定，以控制扬声器44产生所述噪声。比如，第五电流的数值可以与第六电流的数值可以相等，当然恒定也可以理解为小幅度的波动，使得电源42可以在预设时段内可稳定地输出电流，此时电源42不会产生电磁辐射，或者说起产生的电磁辐射可以忽略不计，从而降低电流声达到提高扬声器44所传输的声音信号的效果。
本申请实施例中，以上所述的蓝牙信号为蓝牙通信模块41在建立蓝牙连接的部分或全部过程中，蓝牙通信模块41所发射的信号。其中，建立蓝牙连接的过程可以包括回连过程和进行配对过程，也可以仅包括回连过程或配对过程。当蓝牙通信模块41完成蓝牙连接后，一般情况下，由于发射蓝牙信号相对连续等原因，引起电源输出电流的波动相对变弱，电源等产生的电磁场也相对变弱，对喇叭等器件的干扰也相对变低，从而引发的电流声变弱，此时，可以保持电源42不为用电器43输出电流，使得蓝牙通信模块41在连接状态下，用电器43不消耗电能，降低电源42的功耗。
其中，保持电源42不为所述用电器43提供电流，包括：断开电源42对用电器43的 供电，当然也可以通过其他方式，例如通过电源管理电路进行控制等。
本申请实施例中的蓝牙通信模块41的具体结构以及与其他器件的关系可以与上述申请实施例中蓝牙通信模块400相同，具体可参照如上申请实施例中对蓝牙通信模块400的相关描述，在此不再赘述。
以上对本申请实施例提供的蓝牙设备、蓝牙耳机及蓝牙设备的控制方法进行了详细介绍。本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请。同时，对于本领域的技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种蓝牙设备，其中，包括蓝牙通信模块、电源和用电器，所述电源被配置为可为所述蓝牙通信模块和所述用电器提供电流，当所述蓝牙通信模块发射蓝牙信号时，所述用电器处于第一状态，所述电源输出第一电流；当所述蓝牙通信模块不发射所述蓝牙信号时，所述用电器处于第二状态，所述电源输出第二电流；所述第一电流和所述第二电流的差值在第一预设范围内。
  2. 根据权利要求1所述的蓝牙设备，其中，在所述第一状态下，所述用电器与所述电源断开导通；在所述第二状态下，所述用电器与所述电源保持导通。
  3. 根据权利要求1所述的蓝牙设备，其中，在所述第一状态下，所述电源向所述用电器输出第三电流，在所述第二状态下，所述电源向所述用电器输出第四电流，以使所述第一电流与所述第二电流的差值在所述第一预设范围内。
  4. 根据权利要求1所述的蓝牙设备，其中，所述蓝牙信号为所述蓝牙通信模块建立蓝牙连接的部分或全部过程中所述蓝牙通信模块所发射的信号。
  5. 根据权利要求2所述的蓝牙设备，其中，所述第一电流与所述第二电流相等。
  6. 根据权利要求1至5任一项所述的蓝牙设备，其中，所述电源被配置为在所述蓝牙通信模块完成所述蓝牙连接后，保持所述用电器处于第三状态，以使得所述电源不为所述用电器输出电流或输出第七电流。
  7. 根据权利要求1所述的蓝牙设备，其中，所述蓝牙设备包括声音模块，若所述蓝牙设备为蓝牙耳机，所述声音模块包括扬声器，所述扬声器与所述蓝牙通信模块连接，所述扬声器被配置用于播放声音信号。
  8. 根据权利要求7所述的蓝牙设备，其中，所述蓝牙通信模块包括蓝牙电路和天线辐射体，所述蓝牙电路分别与所述天线辐射体、所述电源、所述用电器和所述扬声器电连接。
  9. 根据权利要求8所述的蓝牙设备，其中，所述蓝牙电路被配置用于控制所述用电器与所述电源的导通；或，所述电源根据所述蓝牙电路的通信情况控制所述电源的电流输出。
  10. 根据权利要求8所述的蓝牙设备，其中，所述蓝牙电路包括蓝牙主控电路和射频电路，所述蓝牙主控电路和所述电源电连接；所述蓝牙主控电路还与所述用电器连接，以控制所述用电器的电流消耗；所述蓝牙主控电路通过所述射频电路与所述天线辐射体连接，以通过所述射频电路和所述天线辐射体收发蓝牙信号。
  11. 根据权利要求10所述的蓝牙设备，其中，所述蓝牙设备还包括第一开关和第二开 关，所述第一开关的一端与所述蓝牙主控电路电连接，所述第一开关的另一端与所述射频电路电连接，所述第二开关的一端与所述蓝牙主控电路电连接，所述第二开关的另一端与所述用电器电连接。
  12. 根据权利要求10所述的蓝牙设备，其中，所述蓝牙设备还包括第一开关，所述第一开关包括输入端、第一输出端和第二输出端，所述输入端被配置为可电连接所述第一输出端或所述第二输出端，所述输入端与所述蓝牙主控电路电连接，所述第一输出端与所述射频电路电连接，所述第二输出端与所述用电器电连接。
  13. 一种蓝牙耳机，其中，包括蓝牙通信模块、电源、用电器和扬声器，所述电源被配置为可为蓝牙通信模块、用电器和扬声器提供电流，以及在所述蓝牙通信模块建立蓝牙连接的全部或部分过程中，在所述蓝牙通信模块发射蓝牙信号时，所述电源不为所述用电器提供电流或为所述用电器提供第四电流，以及在所述蓝牙通信模块不发射蓝牙信号时，所述电源为所述用电器提供预设电流，以使得所述电源所输出的电流被控制在第二预设范围内。
  14. 根据权利要求13所述的蓝牙耳机，其中，当所述电源输出的电流被控制在第二预设范围内时，使得所述蓝牙耳机产生的噪声处于第三预设范围。
  15. 根据权利要求13所述的蓝牙耳机，其中，所述电源被配置为在所述蓝牙通信模块建立蓝牙连接的全部或部分过程中，通过向所述用电器输出电流使得所述电源所输出的电流恒定，以控制所述蓝牙耳机产生的所述噪声。
  16. 根据权利要求13至15任一项所述的蓝牙耳机，其中，所述电源被配置为在所述蓝牙通信模块完成所述蓝牙连接后，保持所述电源不为所述用电器提供电流。
  17. 根据权利要求16所述的蓝牙耳机，其中，所述保持所述电源不为所述用电器提供电流，包括：断开所述电源对所述用电器的供电。
  18. 根据权利要求13所述的蓝牙耳机，其中，所述蓝牙通信模块包括蓝牙电路和天线辐射体，所述蓝牙电路分别与所述电源和所述天线辐射体电性连接，所述蓝牙电路被配置为控制所述天线辐射体发射或不发射所述蓝牙信号，以及控制所述电源为所述用电器供电或不供电。
  19. 根据权利要求18所述的蓝牙耳机，其中，所述蓝牙电路包括蓝牙主控电路和射频电路，所述蓝牙主控电路和所述电源电连接；所述蓝牙主控电路还与所述用电器连接，以控制所述用电器的电流消耗；所述蓝牙主控电路通过所述射频电路与所述天线辐射体连接， 以通过所述射频电路和所述天线辐射体收发蓝牙信号。
  20. 一种蓝牙设备的控制方法，其中，所述蓝牙设备包括电源和用电器，所述方法包括：
    在发射蓝牙信号时，控制所述用电器处于第一状态，所述电源输出第一电流；
    在不发射蓝牙信号时，控制所述用电器处于第二状态，所述电源输出第二电流，所述第一电流和所述第二电流的差值处于第一预设范围内。
PCT/CN2022/071301 2021-02-09 2022-01-11 蓝牙设备、蓝牙耳机及蓝牙设备的控制方法 WO2022170903A1 (zh)

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CN105491473A (zh) * 2016-02-02 2016-04-13 深圳威武智能科技有限公司 一种持续供电的蓝牙耳机
CN210202037U (zh) * 2019-07-31 2020-03-27 深圳市豪恩声学股份有限公司 一种电源保护电路及一种蓝牙耳机
CN214481180U (zh) * 2021-02-09 2021-10-22 Oppo广东移动通信有限公司 蓝牙设备以及蓝牙耳机

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CN104335556A (zh) * 2012-04-12 2015-02-04 马纳林有限责任公司 具有电磁场屏蔽的用于蜂窝电话和智能电话的对讲手机
CN105491473A (zh) * 2016-02-02 2016-04-13 深圳威武智能科技有限公司 一种持续供电的蓝牙耳机
CN210202037U (zh) * 2019-07-31 2020-03-27 深圳市豪恩声学股份有限公司 一种电源保护电路及一种蓝牙耳机
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