WO2022082782A1 - Procédé et appareil de traitement de signal, écouteur bluetooth et support d'enregistrement - Google Patents

Procédé et appareil de traitement de signal, écouteur bluetooth et support d'enregistrement Download PDF

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Publication number
WO2022082782A1
WO2022082782A1 PCT/CN2020/123423 CN2020123423W WO2022082782A1 WO 2022082782 A1 WO2022082782 A1 WO 2022082782A1 CN 2020123423 W CN2020123423 W CN 2020123423W WO 2022082782 A1 WO2022082782 A1 WO 2022082782A1
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WO
WIPO (PCT)
Prior art keywords
polarized antenna
antenna
ear
headset
slave
Prior art date
Application number
PCT/CN2020/123423
Other languages
English (en)
Chinese (zh)
Inventor
彭远
黄健
Original Assignee
万魔声学科技有限公司
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.)
Filing date
Publication date
Application filed by 万魔声学科技有限公司 filed Critical 万魔声学科技有限公司
Priority to PCT/CN2020/123423 priority Critical patent/WO2022082782A1/fr
Priority to CN202080002459.9A priority patent/CN112703746B/zh
Publication of WO2022082782A1 publication Critical patent/WO2022082782A1/fr

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Classifications

    • 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
    • H04R1/1091—Details not provided for in groups H04R1/1008 - H04R1/1083
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive loop type
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application belongs to the field of communications, and in particular, relates to a method for processing a signal, a device for processing a signal, a Bluetooth headset, and a storage medium.
  • the master headset and the terminal device transmit signals through establishing a Bluetooth connection, and the master headset and the slave headset also need to establish a Bluetooth connection to transmit signals. Since the existing Bluetooth headset adopts a single antenna structure, the transmission of the antenna is directional. Therefore, only a compromise method can be used to make the antenna take into account the transmission in both directions, resulting in that the Bluetooth headset cannot achieve the optimal state in the signal transmission between the master headset and the terminal device and between the master headset and the slave headset, resulting in sound from the Bluetooth headset. Caton, delay, etc.
  • One of the purposes of the embodiments of the present application is to provide a method for processing signals, a device for processing signals, a Bluetooth headset, and a storage medium, so as to solve the problem that traditional Bluetooth headsets cannot be connected between the master headset and the terminal device, as well as between the master headset and the slave headset.
  • the optimal state of signal transmission is achieved, resulting in problems such as sound stuttering and delay in the Bluetooth headset.
  • a method for processing a signal is provided, which is applied to a Bluetooth headset, the Bluetooth headset includes a master headset and a slave headset, and the master headset is provided with a first horizontally polarized antenna and a first vertically polarized antenna, The secondary headset is provided with a second horizontally polarized antenna and a second vertically polarized antenna, and the method includes:
  • the master earphone and/or the slave earphone detect the first radio frequency signal sent by the terminal device, obtain the first horizontally polarized antenna and the first vertically polarized antenna and/or the second horizontally polarized antenna and the second vertical polarized antenna the first received signal strength indication corresponding to the first test signal of the first radio frequency signal packet header by the antenna;
  • the main headset determines the first horizontally polarized antenna
  • the antenna is the first target antenna of the main ear, and when it is detected that the first received signal strength indication corresponding to the first horizontally polarized antenna is smaller than the first received signal strength indication corresponding to the first vertically polarized antenna, it is determined that the The first vertically polarized antenna is the first target antenna of the main ear;
  • the secondary headset detects that the first received signal strength indicator corresponding to the second horizontally polarized antenna is greater than or equal to the first received signal strength indicator corresponding to the second vertically polarized antenna, it determines the second horizontally polarized antenna
  • the antenna is the first target antenna from the ear, and when it is detected that the first received signal strength indication corresponding to the second horizontally polarized antenna is smaller than the first received signal strength indication corresponding to the second vertically polarized antenna, it is determined that the The second vertically polarized antenna is the first target antenna from the ear;
  • the master headset detects the second radio frequency signal sent by the slave headset or the slave headset detects the second radio frequency signal sent by the master headset, obtain the first horizontally polarized antenna and the first vertically polarized antenna or the second horizontally polarized antenna and the second a second received signal strength indication corresponding to the second test signal in the packet header of the second radio frequency signal by the vertically polarized antenna;
  • the main headset determines the first horizontally polarized antenna
  • the antenna is the second target antenna for the main ear, and when it is detected that the second received signal strength indicator corresponding to the first horizontally polarized antenna is smaller than the second received signal strength indicator corresponding to the first vertically polarized antenna, it is determined that the The first vertically polarized antenna is the second target antenna for the main ear;
  • the secondary headset detects that the second received signal strength indicator corresponding to the second horizontally polarized antenna is greater than or equal to the second received signal strength indicator corresponding to the second vertically polarized antenna, it determines the second horizontally polarized antenna
  • the antenna is the second target antenna from the ear, and when it is detected that the second received signal strength indication corresponding to the second horizontally polarized antenna is smaller than the second received signal strength indication corresponding to the second vertically polarized antenna, it is determined that the The second vertically polarized antenna is the second target antenna from the ear;
  • the main earphone receives a first radio frequency signal based on the first target antenna of the main ear, and receives a second radio frequency signal based on the second target antenna of the main ear;
  • the slave earphone receives a first radio frequency signal based on the slave ear first target antenna, and the slave earphone receives a second radio frequency signal based on the slave ear second target antenna.
  • a signal processing device which is applied to a Bluetooth headset
  • the Bluetooth headset includes a master headset and a slave headset
  • the master headset is provided with a first horizontally polarized antenna and a first vertically polarized antenna
  • the slave earphone is provided with a second horizontally polarized antenna and a second vertically polarized antenna, and each unit included in the device is configured to perform the steps of the method for processing a signal as described in the first aspect above.
  • a third aspect provides a Bluetooth headset
  • the Bluetooth headset includes a master headset and a slave headset
  • the master headset is provided with a first horizontally polarized antenna and a first vertically polarized antenna
  • the slave headset is provided with A second horizontally polarized antenna and a second vertically polarized antenna
  • the Bluetooth headset includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processing When the computer executes the computer program, the steps of the method for processing a signal as described in the first aspect above are implemented.
  • a computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method for processing a signal as described in the first aspect above are implemented. .
  • a computer program product when the computer program product is run on a Bluetooth headset, the Bluetooth headset is made to perform the steps of the method for processing a signal described in the first aspect.
  • a method for processing a signal, a device for processing a signal, a Bluetooth headset, and a storage medium have the following beneficial effects:
  • the signal processing method provided in this application is applicable to a Bluetooth headset.
  • the Bluetooth headset includes a master headset and a slave headset.
  • the master headset is provided with a first horizontally polarized antenna and a first vertically polarized antenna
  • the slave headset is provided with a second horizontally polarized antenna.
  • a polarized antenna and a second vertically polarized antenna are provided with a first horizontally polarized antenna and a first vertically polarized antenna.
  • the master earphone and/or the slave earphone detect the first radio frequency signal sent by the terminal device, acquire the pair of the first horizontally polarized antenna and the first vertically polarized antenna and/or the second horizontally polarized antenna and the second vertically polarized antenna.
  • the first received signal strength indication corresponding to the first test signal in the header of the first radio frequency signal according to the respective first received signal strength indications corresponding to the first horizontally polarized antenna and the first vertically polarized antenna, it is determined to use the first horizontally polarized antenna Whether the antenna or the first vertically polarized antenna has the best signal quality to receive the first radio frequency signal; according to the first received signal strength indications corresponding to the second horizontally polarized antenna and the second vertically polarized antenna, it is determined to use the second horizontally polarized antenna.
  • the signal quality of the first radio frequency signal received by the polarization antenna or the second vertically polarized antenna is the best, and then an appropriate antenna is selected to receive the first radio frequency signal according to the judgment result;
  • the second radio frequency signal of the second radio frequency signal is obtained, the second test signal corresponding to the second test signal of the packet header of the second radio frequency signal by the first horizontally polarized antenna and the first vertically polarized antenna or the second horizontally polarized antenna and the second vertically polarized antenna is obtained.
  • Received signal strength indication according to the respective second received signal strength indications of the first horizontally polarized antenna and the first vertically polarized antenna, to determine whether to use the first horizontally polarized antenna or the first vertically polarized antenna to receive the second radio frequency signal
  • the signal quality is the best; according to the second received signal strength indications corresponding to the second horizontally polarized antenna and the second vertically polarized antenna, it is judged whether to use the second horizontally polarized antenna or the second vertically polarized antenna to receive the second radio frequency
  • the signal quality of the signal is optimal, and then an appropriate antenna is selected to receive the second radio frequency signal according to the judgment result.
  • the main headset and the slave headset of the Bluetooth headset are each set with two antennas in different directions.
  • an appropriate antenna can be selected to receive the radio frequency signal, which can ensure real-time reception of each radio frequency. signal, and the received radio frequency signals are of the best signal quality, so that the signal transmission between the master headset and the terminal device and between the master headset and the slave headset is optimal, avoiding sound stuttering and delay in the Bluetooth headset. etc. phenomenon.
  • FIG. 1 is a schematic flowchart of a method for processing a signal provided by an embodiment of the present application
  • FIG. 2 is a schematic flowchart of a method for processing a signal provided by another embodiment of the present application
  • FIG. 3 is a schematic diagram of an apparatus for processing a signal provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of an apparatus for processing a signal provided by another embodiment of the present application.
  • the master headset and the terminal device transmit signals through establishing a Bluetooth connection, and the master headset and the slave headset also need to establish a Bluetooth connection to transmit signals.
  • the signal of the master headset and the slave headset usually needs to be diffracted and propagated around the user's head, so that the signal is attenuated.
  • the performance of the headset antenna in the horizontal direction is very tested; the master headset and the terminal When the device transmits the signal, the signal needs to bypass the user's body for transmission, which will also attenuate the signal.
  • the performance of the headphone antenna in the vertical direction is very tested.
  • the transmission of the antenna is directional. Therefore, only a compromise method can be used to make the antenna take into account the transmission in both directions, resulting in that the Bluetooth headset cannot achieve the optimal state in the signal transmission between the master headset and the terminal device and between the master headset and the slave headset, resulting in sound from the Bluetooth headset. Caton, delay, etc.
  • the present application provides a method for processing a signal, which is suitable for a Bluetooth headset.
  • the Bluetooth headset in the present application may include a master headset and a slave headset, and the master headset and the slave headset are respectively provided with a horizontally polarized antenna and a vertically polarized antenna.
  • the horizontally polarized antenna refers to the antenna set in the earphone in the near horizontal direction in the wearing state, which has better transmission and reception performance for the signal transmitted in the horizontal direction
  • the vertically polarized antenna refers to the wearing state
  • Antennas arranged in the near vertical direction in the earphone have better transmission and reception performance for signals transmitted in the vertical direction.
  • FIG. 1 is a schematic flowchart of a method for processing a signal provided by an embodiment of the present application.
  • the execution body of the signal processing method in this embodiment is a Bluetooth headset, including but not limited to a wireless Bluetooth headset, such as a true wireless stereo (True Wireless Stereo, TWS) headset.
  • the signal processing method shown in FIG. 1 can be applied to a Bluetooth headset.
  • the Bluetooth headset includes a master headset and a slave headset.
  • the master headset is provided with a first horizontally polarized antenna and a first vertically polarized antenna
  • the slave headset is provided with a first horizontally polarized antenna and a first vertically polarized antenna.
  • Two horizontally polarized antennas and a second vertically polarized antenna, the method includes S101 to S108, and the details are as follows:
  • a TWS headset is used as an example for illustration.
  • the TWS headset may include a master headset and a slave headset.
  • the master headset is provided with a first horizontally polarized antenna and a first vertically polarized antenna
  • the slave headset is provided with a second horizontally polarized antenna. a polarized antenna and a second vertically polarized antenna.
  • the master headset and the slave headset are relatively speaking.
  • the master headset first establishes a Bluetooth connection with the terminal device, and the slave headset is indirectly connected to the terminal device through the master headset.
  • the slave headset can obtain the data sent by the terminal device by monitoring.
  • the first radio frequency signal may also be that the master earphone forwards the second radio frequency signal to the slave earphone.
  • the terminal device involved in this application may be a device that supports Bluetooth connection, such as a mobile phone, a tablet computer, a notebook, etc., which is not limited.
  • the main earphone When the main earphone detects the first radio frequency signal sent by the terminal device, the main earphone obtains the first received signal strength indication ( Receive signal strength index, RSSI). The terminal adds a packet header to the first radio frequency signal each time before sending the first radio frequency signal, and the first test signal of the first radio frequency signal packet header is used to assist the main earphone and determine which antenna is selected from the earphone to receive the first radio frequency. Signal.
  • the main earphone can also obtain the first radio frequency signal from the first horizontally polarized antenna and the first vertically polarized antenna.
  • the first signal-to-noise ratio (SIGNAL-NOISE RATIO, SNR) corresponding to the first test signal of the packet header, and the acquisition of the first horizontally polarized antenna and the first vertically polarized antenna corresponding to the first test signal of the first radio frequency signal packet header
  • the first bit error rate (Symbol error rate, SER).
  • the first received signal corresponding to the first test signal of the packet header of the first radio frequency signal by the second horizontally polarized antenna and the second vertically polarized antenna is obtained from the headset Intensity indication.
  • the pair of the first radio frequency signal by the second horizontally polarized antenna and the second vertically polarized antenna can also be obtained from the earphone.
  • the earphone when the user only uses one earphone among the TWS earphones, the earphone is the main earphone at this time.
  • the terminal device converts the audio signal to be sent into the first radio frequency signal and broadcasts it.
  • the main earphone detects the first radio frequency signal, it obtains the first radio frequency signal packet header based on the first horizontally polarized antenna in the main earphone.
  • a received signal strength indication corresponding to a test signal, and a received signal strength indication corresponding to the first test signal in the packet header of the first radio frequency signal obtained based on the first vertically polarized antenna in the main earphone.
  • the main earphone when the main earphone detects the first radio frequency signal sent by the terminal device, the main earphone performs frequency conversion processing on the first test signal of the first radio frequency signal packet header based on the first horizontally polarized antenna in the main earphone, and converts the high frequency
  • the first test signal of the device becomes a low-frequency signal; the low-frequency signal is an analog signal, and the analog signal is converted into a digital signal; the digital signal is demodulated by the digital signal processing unit in the main earphone to obtain the first horizontally polarized antenna.
  • the first received signal strength indication corresponding to the first test signal in the packet header of the first radio frequency signal.
  • the same processing method may be adopted to obtain the first received signal strength indication corresponding to the first test signal of the first radio frequency signal packet header by the first vertically polarized antenna.
  • Obtaining the first received signal strength indication corresponding to the first test signal of the first radio frequency signal packet header by the second horizontally polarized antenna and the second vertically polarized antenna from the earphone is similar to this, and will not be repeated here.
  • the main earphone that directly connects with the terminal via Bluetooth, establishes a virtual bluetooth connection with the main earphone, and the slave earphone that connects indirectly to the terminal device.
  • the terminal device converts the to-be-sent audio signal into a first radio frequency signal and broadcasts it.
  • the master headset detects the first radio frequency signal and conveys the information of the terminal device broadcasting the first radio frequency signal to the slave headset, so that the slave headset The earphone can monitor the first radio frequency signal broadcast by the terminal device.
  • the main earphone After detecting the first radio frequency signal broadcast by the terminal device, the main earphone obtains the first received signal strength indication corresponding to the first test signal of the first radio frequency signal packet header by the first horizontally polarized antenna and the first vertically polarized antenna. After monitoring the first radio frequency signal sent by the terminal device, the earphone obtains the first received signal strength indication corresponding to the first test signal in the packet header of the first radio frequency signal by the second horizontally polarized antenna and the second vertically polarized antenna.
  • the main earphone determines the first horizontal polarization
  • the polarized antenna is the first target antenna of the main ear, and when it is detected that the first received signal strength indicator corresponding to the first horizontally polarized antenna is smaller than the first received signal strength indicator corresponding to the first vertically polarized antenna, it is determined that The first vertically polarized antenna is the primary ear first target antenna.
  • the main earphone determines the first target antenna of the main ear according to the obtained first received signal strength indication corresponding to the first test signal of the first radio frequency signal packet header by the first horizontally polarized antenna and the first vertically polarized antenna.
  • the first target antenna of the main ear is an antenna used to ensure better signal quality when receiving the first radio frequency signal, and the first target antenna of the main ear may be a first horizontally polarized antenna or a first vertically polarized antenna .
  • the received signal corresponding to the first test signal of the first radio frequency signal packet header is obtained based on the first horizontally polarized antenna in the main earphone.
  • strength indication, and a received signal strength indication corresponding to the first test signal in the packet header of the first radio frequency signal obtained based on the first vertically polarized antenna in the main earphone.
  • the main earphone compares the two received signal strength indications, and selects the antenna corresponding to the one with the better received signal strength indication as the first target antenna of the main ear.
  • the main earphone detects that the first received signal strength indication corresponding to the first horizontally polarized antenna is greater than or equal to the first received signal strength indication corresponding to the first vertically polarized antenna, it determines that the first horizontally polarized antenna is the primary one
  • the first target antenna of the ear when it is detected that the first received signal strength indication corresponding to the first horizontally polarized antenna is smaller than the first received signal strength indication corresponding to the first vertically polarized antenna, it is determined that the first vertically polarized antenna is the main ear The first target antenna.
  • the RSSI corresponding to the first test signal of the first radio frequency signal packet header obtained based on the first horizontally polarized antenna in the main headset is -80dbm
  • the first radio frequency obtained based on the first vertically polarized antenna in the main headset The RSSI corresponding to the first test signal of the signal packet header is -60dbm; the main earphone compares the sizes of the two RSSIs.
  • the first vertically polarized antenna corresponding to the RSSI of -60dbm is better to receive the first radio frequency signal.
  • the first vertically polarized antenna in the main earphone is used as the first target antenna of the main ear.
  • the slave earphone determines the first target antenna of the slave ear according to the acquired first received signal strength indication corresponding to the first test signal of the first radio frequency signal packet header by the second horizontally polarized antenna and the second vertically polarized antenna.
  • the first target antenna from the ear is an antenna for ensuring better signal quality when receiving the first radio frequency signal, and the first target antenna from the ear may be a second horizontally polarized antenna or a second vertically polarized antenna .
  • the secondary earphone compares the two received signal strength indications, and selects the antenna corresponding to the one with the better received signal strength indication as the secondary ear first target antenna.
  • the slave earphone detects that the first received signal strength indication corresponding to the second horizontally polarized antenna is greater than or equal to the first received signal strength indication corresponding to the second vertically polarized antenna, it determines that the second horizontally polarized antenna is a slave
  • the first target antenna of the ear when it is detected that the first received signal strength indicator corresponding to the second horizontally polarized antenna is smaller than the first received signal strength indicator corresponding to the second vertically polarized antenna, it is determined that the second vertically polarized antenna is a secondary signal from the ear.
  • the first target antenna when it is detected that the first received signal strength indicator corresponding to the second horizontally polarized antenna is smaller than the first received signal strength indicator corresponding to the second vertically polarized antenna, it is determined that the second vertically polarized antenna is a secondary signal from the ear.
  • the slave earphone can obtain the first signal-to-noise corresponding to the first test signal of the packet header of the first radio frequency signal according to the acquired second horizontally polarized antenna and the second vertically polarized antenna. Than determine the first target antenna from the ear. Specifically, when the earphone detects that the first signal-to-noise ratio corresponding to the second horizontally polarized antenna is greater than or equal to the first signal-to-noise ratio corresponding to the second vertically polarized antenna, it determines that the second horizontally polarized antenna is from the second horizontally polarized antenna.
  • a target antenna when detecting that the first signal-to-noise ratio corresponding to the second horizontally polarized antenna is smaller than the first signal-to-noise ratio corresponding to the second vertically polarized antenna, determine that the second vertically polarized antenna is the first target antenna from the ear .
  • the slave headset can obtain the first error code corresponding to the first test signal of the first radio frequency signal packet header according to the acquired second horizontally polarized antenna and the second vertically polarized antenna.
  • the rate is determined from the ear to the first target antenna. Specifically, when the earphone detects that the first bit error rate corresponding to the second horizontally polarized antenna is less than or equal to the first bit error rate corresponding to the second vertically polarized antenna, it determines that the second horizontally polarized antenna is the second horizontally polarized antenna.
  • a target antenna when it is detected that the first bit error rate corresponding to the second horizontally polarized antenna is greater than the first bit error rate corresponding to the second vertically polarized antenna, it is determined that the second vertically polarized antenna is the first target antenna from the ear .
  • the second radio frequency signal may include a synchronization signal and/or a repeater signal.
  • the synchronization signal is used for the master headset and the slave headset to convert the received first radio frequency signal into an audio signal and play it in the headset synchronously, so that the master headset worn by the user and the slave headset synchronously emit sound; when the slave headset needs to pass the master headset
  • the master headset needs to forward the first radio frequency signal to the slave headset after receiving the first radio frequency signal. to the first radio frequency signal.
  • the second radio frequency signal is a forwarding signal
  • the second radio frequency signal sent by the main headset is detected from the earphone
  • the second radio frequency signal packet header of the second radio frequency signal by the second horizontally polarized antenna and the second vertically polarized antenna is obtained.
  • the second received signal strength indication corresponding to the test signal.
  • the main earphone detects the second radio frequency signal sent from the earphone, it acquires the correspondence between the first horizontally polarized antenna and the first vertically polarized antenna to the second test signal of the packet header of the second radio frequency signal.
  • a second received signal strength indication is a synchronization signal
  • the TWS headset is used as an example for illustration.
  • the master headset sends a sync signal to the slave headset.
  • the master headset adds a packet header to the synchronization signal, and the second test signal in the synchronization signal packet header is used to assist the slave headset to determine which antenna to select to receive the second radio frequency signal.
  • the synchronization signal is used for the master earphone and the slave earphone to convert the received first radio frequency signal into an audio signal and play in the earphone synchronously, so that the master earphone worn by the user and the slave earphone synchronously emit sound.
  • the master headset may send a synchronization signal to the slave headset based on the antenna used for signal transmission with the terminal device, or may randomly select the first horizontally polarized antenna or the first vertically polarized antenna to send the synchronization signal to the slave headset, and also
  • the synchronization signal may be sent to the slave earphone simultaneously through the first horizontally polarized antenna and the first vertically polarized antenna.
  • the slave earphone detects the synchronization signal sent by the master earphone, it acquires the received signal strength indication corresponding to the second test signal in the packet header of the synchronization signal.
  • the signal-to-noise ratio corresponding to the second test signal of the synchronization signal packet header by the second horizontally polarized antenna and the second vertically polarized antenna can also be obtained from the headset, and the second The bit error rate corresponding to the second test signal in the header of the synchronization signal by the horizontally polarized antenna and the second vertically polarized antenna.
  • the TWS headset When the second radio frequency signal is a forwarding signal, the TWS headset is used as an example for illustration.
  • the terminal device converts the audio signal to be sent into the first radio frequency signal and broadcasts it.
  • the earphone After detecting the first radio frequency signal, the earphone receives the first radio frequency signal based on the first target antenna of the main ear.
  • the master earphone forwards the received first radio frequency signal to the slave earphone.
  • the master earphone may divide the first radio frequency signal into multiple segments of the second radio frequency signal, and forward them to the slave earphones in batches.
  • the secondary earphone When the secondary earphone detects the second radio frequency signal sent by the master earphone, obtains the second received signal strength indication corresponding to the second test signal of the second radio frequency signal packet header by the second horizontally polarized antenna and the second vertically polarized antenna, based on the respective The corresponding second received signal strength indicates that the antenna for receiving the second radio frequency signal is determined, and the second radio frequency signal is received based on the determined antenna.
  • the master earphone also adjusts the antenna to forward the remaining second radio frequency signal with the same type of antenna as the slave earphone.
  • the master headset performs signal transmission with the slave headset based on the first horizontally polarized antenna; the slave headset receives the second radio frequency signal based on the second vertically polarized antenna, then The master earphone performs signal transmission with the slave earphone based on the first vertically polarized antenna.
  • the slave earphone may send a feedback signal to the master earphone, and the master earphone obtains the received signal strength indication corresponding to the feedback signal, and determines which antenna to use to continue to send the signal based on the received signal strength indication.
  • the second radio frequency signal is forwarded from the earphone.
  • the positions of the master earphone and the slave earphone are opposite, so when the signal is transmitted between the master earphone and the slave earphone, the antennas used are all antennas in the same direction.
  • the SNR corresponding to the second test signal in the packet header of the forwarded signal by the second horizontally polarized antenna and the second vertically polarized antenna can also be obtained from the headset, and the second The bit error rate corresponding to the second test signal in the packet header of the forwarded signal by the horizontally polarized antenna and the second vertically polarized antenna.
  • the main earphone determines the first horizontally polarized antenna
  • the polarized antenna is the second target antenna for the main ear, and when it is detected that the second received signal strength indicator corresponding to the first horizontally polarized antenna is smaller than the second received signal strength indicator corresponding to the first vertically polarized antenna, it is determined that The first vertically polarized antenna is the second target antenna for the main ear.
  • the main earphone determines the second target antenna of the main ear according to the obtained second received signal strength indication of the first horizontally polarized antenna and the first vertically polarized antenna corresponding to the second test signal of the second radio frequency signal packet header.
  • the second target antenna of the main ear is an antenna used to ensure better signal quality when receiving the second radio frequency signal, and the second target antenna of the main ear may be the first horizontally polarized antenna or the first vertically polarized antenna .
  • the received signal strength indication corresponding to the second test signal of the second radio frequency signal packet header is obtained based on the first horizontally polarized antenna in the main earphone, and the received signal strength indication corresponding to the second test signal of the packet header of the second radio frequency signal is obtained based on the first vertically polarized antenna in the main earphone.
  • the received signal strength indication corresponding to the second test signal in the packet header of the second radio frequency signal is obtained.
  • the main earphone compares the two received signal strength indicators, and selects the antenna corresponding to the one with the better received signal strength indicator as the second target antenna of the main earphone.
  • the main earphone detects that the second received signal strength indication corresponding to the first horizontally polarized antenna is greater than or equal to the second received signal strength indication corresponding to the first vertically polarized antenna, it determines that the first horizontally polarized antenna is The second target antenna of the main ear, when it is detected that the second received signal strength indicator corresponding to the first horizontally polarized antenna is smaller than the second received signal strength indicator corresponding to the first vertically polarized antenna, it is determined that the first vertically polarized antenna is the dominant antenna Ear second target antenna.
  • the secondary earphone determines the secondary target antenna from the ear according to the acquired second received signal strength indication corresponding to the second test signal of the second radio frequency signal packet header by the second horizontally polarized antenna and the second vertically polarized antenna.
  • the second target antenna from the ear is an antenna for ensuring better signal quality when receiving the second radio frequency signal, and the second target antenna from the ear may be a second horizontally polarized antenna or a second vertically polarized antenna .
  • the secondary earphone compares the two received signal strength indications, and selects the antenna corresponding to the one with the better received signal strength indication as the secondary target antenna for the secondary earphone.
  • the secondary headset detects that the second received signal strength indication corresponding to the second horizontally polarized antenna is greater than or equal to the second received signal strength indication corresponding to the second vertically polarized antenna, it determines that the second horizontally polarized antenna is a secondary The second target antenna of the ear, when it is detected that the second received signal strength indicator corresponding to the second horizontally polarized antenna is smaller than the second received signal strength indicator corresponding to the second vertically polarized antenna, it is determined that the second vertically polarized antenna is from the ear The second target antenna.
  • the main earphone receives a first radio frequency signal based on the first target antenna of the main ear, and receives a second radio frequency signal based on the second target antenna of the main ear.
  • the main earphone receives the first radio frequency signal based on the first target antenna of the main ear, and receives the second radio frequency signal based on the second target antenna of the main ear.
  • the first target antenna of the main ear determined by the main earphone in S102 is the first horizontally polarized antenna
  • the first radio frequency signal sent by the terminal device is received based on the first horizontally polarized antenna in the main earphone; if If the first target antenna of the main ear determined in S102 by the main earphone is the first vertically polarized antenna, the first radio frequency signal sent by the terminal device is received based on the first vertically polarized antenna in the main earphone.
  • the second radio frequency signal is received based on the first horizontally polarized antenna in the main earphone;
  • the second target antenna of the ear is the first vertically polarized antenna, and the second radio frequency signal is received based on the first vertically polarized antenna in the main earphone.
  • the second radio frequency signal is a synchronization signal
  • the reception is based on the first horizontally polarized antenna in the main earphone.
  • the synchronization signal sent from the earphone if the second target antenna of the main ear determined by the main earphone in S105 is the first vertically polarized antenna, the synchronization signal sent from the earphone is received based on the first vertically polarized antenna in the main earphone.
  • the slave earphone receives a first radio frequency signal based on the first target antenna from the ear, and the slave earphone receives a second radio frequency signal based on the second target antenna from the ear.
  • the earphone is based on receiving the first radio frequency signal from the ear first target antenna, and is based on receiving the second radio frequency signal from the ear second target antenna.
  • the first target antenna of the slave ear determined in S103 is the second horizontally polarized antenna
  • the first radio frequency signal is received based on the second horizontally polarized antenna in the slave earphone
  • the first target antenna of the slave ear is determined to be the second vertically polarized antenna, and the first radio frequency signal is received based on the second vertically polarized antenna of the slave earphone.
  • the second radio frequency signal is received based on the second horizontally polarized antenna in the slave earphone;
  • the second target antenna of the ear is a second vertically polarized antenna, and a second radio frequency signal is received based on the second vertically polarized antenna in the secondary earphone.
  • the slave earphone receives the forwarding signal sent by the master earphone based on the second horizontally polarized antenna or the second vertically polarized antenna.
  • the signal processing method provided in this application is applicable to a Bluetooth headset.
  • the Bluetooth headset includes a master headset and a slave headset.
  • the master headset is provided with a first horizontally polarized antenna and a first vertically polarized antenna
  • the slave headset is provided with a second horizontally polarized antenna.
  • a polarized antenna and a second vertically polarized antenna are provided with a first horizontally polarized antenna and a first vertically polarized antenna.
  • the master earphone and/or the slave earphone detect the first radio frequency signal sent by the terminal device, acquire the pair of the first horizontally polarized antenna and the first vertically polarized antenna and/or the second horizontally polarized antenna and the second vertically polarized antenna.
  • the first received signal strength indication corresponding to the first test signal in the header of the first radio frequency signal according to the respective first received signal strength indications corresponding to the first horizontally polarized antenna and the first vertically polarized antenna, it is determined to use the first horizontally polarized antenna Whether the antenna or the first vertically polarized antenna has the best signal quality to receive the first radio frequency signal; according to the first received signal strength indications corresponding to the second horizontally polarized antenna and the second vertically polarized antenna, it is determined to use the second horizontally polarized antenna.
  • the signal quality of the first radio frequency signal received by the polarization antenna or the second vertically polarized antenna is the best, and then an appropriate antenna is selected to receive the first radio frequency signal according to the judgment result;
  • the second radio frequency signal of the second radio frequency signal is obtained, the second test signal corresponding to the second test signal of the packet header of the second radio frequency signal by the first horizontally polarized antenna and the first vertically polarized antenna or the second horizontally polarized antenna and the second vertically polarized antenna is obtained.
  • Received signal strength indication according to the respective second received signal strength indications of the first horizontally polarized antenna and the first vertically polarized antenna, to determine whether to use the first horizontally polarized antenna or the first vertically polarized antenna to receive the second radio frequency signal
  • the signal quality is the best; according to the second received signal strength indications corresponding to the second horizontally polarized antenna and the second vertically polarized antenna, it is judged whether to use the second horizontally polarized antenna or the second vertically polarized antenna to receive the second radio frequency
  • the signal quality of the signal is optimal, and then an appropriate antenna is selected to receive the second radio frequency signal according to the judgment result.
  • the main headset and the slave headset of the Bluetooth headset are each set with two antennas in different directions.
  • an appropriate antenna can be selected to receive the radio frequency signal, which can ensure real-time reception of each radio frequency. signal, and the received radio frequency signals are of the best signal quality, so that the signal transmission between the master headset and the terminal device and between the master headset and the slave headset is optimal, avoiding sound stuttering and delay in the Bluetooth headset. etc. phenomenon.
  • the master earphone and/or the slave earphone detect the first radio frequency signal sent by the terminal device, acquire the first horizontally polarized antenna and the first vertically polarized antenna and/or the first radio frequency signal.
  • the first signal-to-noise ratio and the first bit error rate corresponding to the first test signal of the first RF signal packet header by the two horizontally polarized antennas and the second vertically polarized antenna; the first signal-to-noise ratio and the first bit error rate are used for Determine the first target antenna of the master ear and determine the first target antenna of the slave ear.
  • the main earphone when the main earphone detects the first radio frequency signal sent by the terminal device, the main earphone obtains the first signal-to-noise ratio corresponding to the first test signal of the packet header of the first radio frequency signal based on the first horizontally polarized antenna in the main earphone. and a first bit error rate, and a first signal-to-noise ratio and a first bit error rate corresponding to the first test signal of the first radio frequency signal packet header obtained based on the first vertically polarized antenna in the main earphone.
  • the main earphone may determine the first target antenna of the main ear according to the obtained first signal-to-noise ratio corresponding to the first test signal of the first radio frequency signal packet header by the first horizontally polarized antenna and the first vertically polarized antenna. Specifically, when the main earphone detects that the first signal-to-noise ratio corresponding to the first horizontally polarized antenna is greater than or equal to the first signal-to-noise ratio corresponding to the first vertically polarized antenna, it determines that the first horizontally polarized antenna is the first signal to noise ratio of the main ear.
  • a target antenna when it is detected that the first signal-to-noise ratio corresponding to the first horizontally polarized antenna is smaller than the first signal-to-noise ratio corresponding to the first vertically polarized antenna, determine that the first vertically polarized antenna is the first target antenna for the main ear .
  • the main earphone can obtain the first error code corresponding to the first test signal of the first radio frequency signal packet header by the first horizontally polarized antenna and the first vertically polarized antenna.
  • the rate determines the main ear first target antenna. Specifically, when the main earphone detects that the first bit error rate corresponding to the first horizontally polarized antenna is less than or equal to the first bit error rate corresponding to the first vertically polarized antenna, it determines that the first horizontally polarized antenna is the first bit error rate of the main ear.
  • a target antenna when detecting that the first bit error rate corresponding to the first horizontally polarized antenna is greater than the first bit error rate corresponding to the first vertically polarized antenna, determine that the first vertically polarized antenna is the first target antenna for the main ear .
  • the earphone when the earphone detects the first radio frequency signal sent by the terminal device, the earphone acquires the first signal-to-noise corresponding to the first test signal of the packet header of the first radio frequency signal based on the second horizontally polarized antenna in the earphone. ratio and the first bit error rate, and the first signal-to-noise ratio and the first bit error rate corresponding to the first test signal obtained from the second vertically polarized antenna in the earphone for the packet header of the first radio frequency signal.
  • the slave earphone can determine the first target antenna of the slave ear according to the acquired first signal-to-noise ratio corresponding to the first test signal of the first radio frequency signal packet header by the second horizontally polarized antenna and the second vertically polarized antenna. Specifically, when the earphone detects that the first signal-to-noise ratio corresponding to the second horizontally polarized antenna is greater than or equal to the first signal-to-noise ratio corresponding to the second vertically polarized antenna, it determines that the second horizontally polarized antenna is from the second horizontally polarized antenna.
  • a target antenna when detecting that the first signal-to-noise ratio corresponding to the second horizontally polarized antenna is smaller than the first signal-to-noise ratio corresponding to the second vertically polarized antenna, determine that the second vertically polarized antenna is the first target antenna from the ear .
  • the slave headset can obtain the first error code corresponding to the first test signal of the first radio frequency signal packet header according to the acquired second horizontally polarized antenna and the second vertically polarized antenna.
  • the rate is determined from the ear to the first target antenna. Specifically, when the earphone detects that the first bit error rate corresponding to the second horizontally polarized antenna is less than or equal to the first bit error rate corresponding to the second vertically polarized antenna, it determines that the second horizontally polarized antenna is the second horizontally polarized antenna.
  • a target antenna when it is detected that the first bit error rate corresponding to the second horizontally polarized antenna is greater than the first bit error rate corresponding to the second vertically polarized antenna, it is determined that the second vertically polarized antenna is the first target antenna from the ear .
  • the master earphone detects the second radio frequency signal sent by the slave earphone or the slave earphone detects the second radio frequency signal sent by the master earphone
  • the second signal-to-noise ratio and the second bit error rate corresponding to the second test signal of the second radio frequency signal packet header by the polarized antenna or the second horizontally polarized antenna and the second vertically polarized antenna; the second signal-to-noise ratio and the second The bit error rate is used to determine the second target antenna for the primary ear and the second target antenna for the secondary ear.
  • the main earphone when the main earphone detects the second radio frequency signal sent from the earphone, the main earphone obtains the second signal-to-noise ratio corresponding to the second test signal of the packet header of the second radio frequency signal based on the first horizontally polarized antenna in the main earphone. and a second bit error rate, and a second signal-to-noise ratio and a second bit error rate corresponding to the second test signal of the packet header of the second radio frequency signal based on the first vertically polarized antenna in the main earphone.
  • the main earphone can determine the second target antenna of the main ear according to the acquired second signal-to-noise ratio of the first horizontally polarized antenna and the first vertically polarized antenna to the second test signal of the second radio frequency signal packet header. Specifically, when the main earphone detects that the second signal-to-noise ratio corresponding to the first horizontally polarized antenna is greater than or equal to the second signal-to-noise ratio corresponding to the first vertically polarized antenna, it determines that the first horizontally polarized antenna is the first horizontally polarized antenna for the main ear.
  • Two target antennas when it is detected that the second signal-to-noise ratio corresponding to the first horizontally polarized antenna is smaller than the second signal-to-noise ratio corresponding to the first vertically polarized antenna, determine that the first vertically polarized antenna is the main ear and the second target antenna .
  • the main earphone can obtain the second error code corresponding to the second test signal of the second radio frequency signal packet header according to the obtained first horizontally polarized antenna and the first vertically polarized antenna.
  • the rate determines the second target antenna for the main ear.
  • the main earphone detects that the second bit error rate corresponding to the first horizontally polarized antenna is less than or equal to the second bit error rate corresponding to the first vertically polarized antenna, it determines that the first horizontally polarized antenna is the first Two target antennas, when it is detected that the second bit error rate corresponding to the first horizontally polarized antenna is greater than the second bit error rate corresponding to the first vertically polarized antenna, determine that the first vertically polarized antenna is the main ear and the second target antenna .
  • the secondary earphone when the secondary earphone detects the second radio frequency signal sent by the master earphone, the secondary earphone obtains the second signal-to-noise corresponding to the second test signal of the packet header of the second radio frequency signal based on the second horizontally polarized antenna in the secondary earphone. ratio and the second bit error rate, and the second signal-to-noise ratio and the second bit error rate corresponding to the second test signal obtained from the second vertically polarized antenna in the earphone for the packet header of the second radio frequency signal.
  • the slave earphone may determine the second target antenna of the slave ear according to the acquired second signal-to-noise ratio corresponding to the second test signal of the second radio frequency signal packet header by the second horizontally polarized antenna and the second vertically polarized antenna. Specifically, when the earphone detects that the second signal-to-noise ratio corresponding to the second horizontally polarized antenna is greater than or equal to the second signal-to-noise ratio corresponding to the second vertically polarized antenna, it determines that the second horizontally polarized antenna is the second signal-to-noise ratio corresponding to the second horizontally polarized antenna.
  • Two target antennas when it is detected that the second signal-to-noise ratio corresponding to the second horizontally polarized antenna is smaller than the second signal-to-noise ratio corresponding to the second vertically polarized antenna, determine that the second vertically polarized antenna is the second target antenna from the ear .
  • the second error code corresponding to the second test signal of the packet header of the second radio frequency signal can be obtained from the second horizontally polarized antenna and the second vertically polarized antenna from the headset.
  • the rate is determined from the ear to the second target antenna. Specifically, when the earphone detects that the second bit error rate corresponding to the second horizontally polarized antenna is less than or equal to the second bit error rate corresponding to the second vertically polarized antenna, it determines that the second horizontally polarized antenna is the second bit error rate corresponding to the second horizontally polarized antenna.
  • Two target antennas when detecting that the second bit error rate corresponding to the second horizontally polarized antenna is greater than the second bit error rate corresponding to the second vertically polarized antenna, determine that the second vertically polarized antenna is the second target antenna from the ear .
  • FIG. 2 is a schematic flowchart of a method for processing a signal provided by another embodiment of the present application, and the method may include: S201 to S209 .
  • steps S201 to S208 shown in FIG. 2 reference may be made to the above-mentioned related descriptions of S101 to S108 , which are not repeated here for brevity.
  • Step S209 will be specifically described below.
  • the main earphone sends a response signal to the terminal device through the main ear first target antenna.
  • the master headset needs to send a response signal to the terminal device, where the response signal is used to prompt the terminal device to send a new round of radio frequency signals.
  • the main earphone sends a response signal to the terminal device through the first target antenna of the main ear.
  • the antenna used by the master headset for signal transmission with the slave headset is the same as the antenna used for signal transmission between the master headset and the terminal device, that is, the antenna used by the master headset to detect the second radio frequency signal transmission between the master headset and the slave headset. Antenna, whether it is the same antenna as the antenna used when the main earphone and the terminal device transmit the first radio frequency signal, if it is the same antenna, the main earphone sends a response signal based on the first target antenna of the main ear.
  • the first vertically polarized antenna is used when the master headset and the terminal device transmit the first radio frequency signal
  • the first vertically polarized antenna is used when the master headset and the slave headset transmit the second radio frequency signal.
  • the master headset The response signal is sent to the terminal device based on the first vertically polarized antenna.
  • the first horizontally polarized antenna is similar to the first vertically polarized antenna, and details are not repeated here.
  • the main earphone sends a response to the terminal device through the antenna used in the signal transmission with the terminal device.
  • Signal That is, if it is detected that the antenna used for signal transmission between the master headset and the slave headset is different from the antenna used for signal transmission between the master headset and the terminal device, the current antenna of the master headset is switched to transmit signals to the terminal device. The antenna used for transmission, and a response signal is sent to the terminal device based on the switched antenna.
  • the first vertically polarized antenna is used when the master headset and the terminal device transmit the first radio frequency signal
  • the first horizontally polarized antenna is used when the master headset and the slave headset transmit the second radio frequency signal.
  • the master headset The first horizontally polarized antenna is switched to the first vertically polarized antenna, and a response signal is sent to the terminal device based on the first vertically polarized antenna.
  • the antenna used when the main earphone and the terminal device transmit the first radio frequency signal is different from the antenna used when the main earphone and the slave earphone transmit the second radio frequency signal
  • the main earphone and the terminal device are selected to perform the first radio frequency signal.
  • the antenna used for signal transmission sends a response signal to the terminal device.
  • the main earphone communicates with the terminal device based on the main ear first target antenna in the first communication time slot, And/or the slave headset communicates with the terminal device based on the first target antenna of the slave ear; in the second communication time slot, the master headset communicates with the slave headset based on the second target antenna of the master ear or The slave earphone communicates with the master earphone based on the second target antenna of the slave ear; the master earphone sends the response signal to the terminal device based on the first target antenna of the master ear in the third communication time slot.
  • the first communication time slot, the second communication time slot, and the third communication time slot respectively correspond to the sending sequence and sending time of the first radio frequency signal, the second radio frequency signal, and the response signal in a complete Bluetooth data packet transmission process.
  • the first communication time slot is earlier than the second communication time slot
  • the second communication time slot is earlier than the third communication time slot.
  • the second radio frequency signal of the second communication time slot may include a synchronization signal and/or a forwarding signal.
  • the user only wears two TWS earphones as an example for description.
  • the main earphone that directly connects with the mobile phone via Bluetooth, establishes a virtual bluetooth connection with the main earphone, and the slave earphone that connects indirectly to the mobile phone.
  • the mobile phone converts the audio signal to be sent into the first radio frequency signal and broadcasts it, and the master earphone detects the first radio frequency signal in the first communication time slot, and at the same time transmits the information of the terminal equipment broadcasting the first radio frequency signal to the slave earphone, so that The first radio frequency signal broadcast by the mobile phone can be monitored from the earphone.
  • the main headset After the main headset detects the first radio frequency signal broadcast by the mobile phone in the first communication time slot, based on the first horizontally polarized antenna in the main headset, the received signal strength indication corresponding to the first test signal in the packet header of the first radio frequency signal is obtained, and The received signal strength indication corresponding to the first test signal of the first radio frequency signal packet header is obtained based on the first vertically polarized antenna in the main earphone.
  • the earphone monitors the first radio frequency signal sent by the terminal device in the second communication time slot, the received signal strength indication corresponding to the first test signal in the packet header of the first radio frequency signal is obtained based on the second horizontally polarized antenna in the earphone.
  • the master earphone and the slave earphone respectively determine their corresponding target antennas according to the obtained received signal strength indication. For example, when the user puts the mobile phone in his pocket, the main headset and the secondary headset are in a vertical state with the mobile phone. At this time, the vertically polarized antennas of the main headset and the secondary headset have better performance for RF signal transmission. The received signal strength indications corresponding to the two antennas can be obtained. The one with the better received signal strength indication is the first vertically polarized antenna. The first vertically polarized antenna is used as the first target antenna of the main ear, and based on the first vertical polarized antenna The first radio frequency signal sent by the mobile phone is received by the antenna; the same process is also used for the earphone.
  • the main earphone can compare the received signal strength indication corresponding to the two antennas to obtain a better received signal strength indication.
  • One of the antennas is the first vertically polarized antenna, and receives the first radio frequency signal sent by the mobile phone based on the first vertically polarized antenna.
  • the slave headset and the mobile phone are in a horizontal state.
  • the slave headset compares the received signal strength indications corresponding to the two antennas, and can obtain that the one with the better received signal strength indication is the second horizontally polarized antenna, and based on the second horizontally polarized antenna
  • the polarized antenna receives the signal sent by the mobile phone.
  • the master headset After both the master headset and the slave headset receive the radio frequency signal, the master headset will send a second radio frequency signal to the slave headset (take the synchronization signal as an example).
  • the earphone detects the synchronization signal sent by the main earphone, obtains the received signal strength indication corresponding to the synchronization signal, and determines the antenna for transmitting the synchronization signal based on the received signal strength indication. For example, if the user wears both the master headset and the slave headset on their ears, at this time the master headset and the slave headset are in a parallel state, and the slave headset and the master headset can compare their corresponding received signal strength indications to obtain a better received signal strength indication.
  • One side is a horizontally polarized antenna.
  • the master earphone and the slave earphone transmit the synchronization signal based on the horizontally polarized antenna.
  • the user wears one earphone (such as the main earphone) and the other slave earphone is placed on the table. At this time, the main earphone and the slave earphone are in a vertical state.
  • the one with the better received signal strength indication is the vertically polarized antenna.
  • the master and slave headphones transmit synchronization signals based on vertically polarized antennas.
  • the master headset After the synchronization signal transmission between the master headset and the slave headset is completed, the master headset sends a response signal to the mobile phone in the third communication time slot. If in this round of radio frequency signal transmission, the main headset starts to receive the radio frequency signal broadcast by the mobile phone based on the first vertically polarized antenna, and halfway through the first vertically polarized antenna to transmit the synchronization signal with the slave headset, then directly The response signal is sent to the mobile phone based on the currently used antenna, that is, the first vertically polarized antenna.
  • the main headset starts to receive the radio frequency signal broadcast by the mobile phone based on the first vertically polarized antenna, and halfway through the first horizontally polarized antenna to transmit the synchronization signal with the slave headset, then the antenna Switch to the first vertically polarized antenna, and send a response signal to the mobile phone through the first vertically polarized antenna.
  • the mobile phone receives the response signal sent by the main headset, and performs a new round of radio frequency signal transmission.
  • signal transmission is performed between the master earphone and the terminal device, as well as between the master earphone and the slave earphone.
  • the master earphone detects that the signal transmission is performed with it.
  • the antenna it selects to transmit the signal also changes correspondingly. Then, ensure that the appropriate antenna is selected to transmit the signal, so that the signal transmission between the master headset and the terminal device and the master headset and the slave headset can reach the optimal state, avoiding the phenomenon of sound stuttering and delay in the Bluetooth headset.
  • the earphone when the user only wears one TWS headset, there are only the first communication time slot and the third communication time slot at this time.
  • the earphone when the user only uses one earphone, the earphone establishes a Bluetooth connection with the terminal device, and the earphone is also the main earphone.
  • the terminal device converts the audio signal to be sent into a first radio frequency signal and broadcasts it.
  • the main earphone detects the first radio frequency signal in the first communication time slot, and obtains the first radio frequency signal based on the first horizontally polarized antenna in the main earphone.
  • the received signal strength indication corresponding to the first test signal of the packet header, and the received signal strength indication corresponding to the first test signal of the first radio frequency signal packet header obtained based on the first vertically polarized antenna in the main earphone.
  • the main earphone compares the two received signal strength indications, and selects the antenna corresponding to the one with the better received signal strength indication as the first target antenna of the main ear. For example, after wearing the main headset, the user puts the terminal device (such as a mobile phone) in his pocket. At this time, the main headset and the mobile phone are in a vertical state. At this time, the first vertically polarized antenna has better performance for the transmission of the first radio frequency signal.
  • the main earphone can obtain that the one with the better received signal strength indication number is the first vertically polarized antenna, and the first vertically polarized antenna is used as the first target antenna of the main ear, and The first radio frequency signal sent by the mobile phone is received based on the first vertically polarized antenna. Then, the main earphone sends a response signal to the mobile phone in the third communication time slot based on the first vertically polarized antenna, and the mobile phone receives the response signal sent by the main earphone and performs a new round of radio frequency signal transmission.
  • the main earphone within a preset time period, is based on the main ear first target antenna and the The communication of the terminal device is based on the second target antenna of the master ear used in the transmission of the first Bluetooth data packet within the preset time period to communicate with the slave earphone;
  • the slave headset communicates with the terminal device based on the first target antenna of the slave ear used when the first Bluetooth data packet is transmitted within the preset time period, and is based on the first Bluetooth data packet transmission within the preset time period.
  • the second target antenna used in the slave ear communicates with the master earphone.
  • the preset time period can be set and adjusted according to the actual situation.
  • the preset time period can be the time required for the transmission of one Bluetooth data packet, which is only an exemplary description here, and is not limited thereto.
  • the communication object of the master headset refers to the terminal device or the slave headset
  • the communication object of the slave headset refers to the terminal device or the master headset.
  • the first target antenna of the main ear used by the main earphone when the first Bluetooth data packet is transmitted within the preset time period is the first horizontally polarized antenna, then within the preset time period
  • the segment communicates with the terminal equipment through the first horizontally polarized antenna all the time.
  • the first target antenna of the main ear used by the main earphone when the first Bluetooth data packet is transmitted in the preset time period is the first vertically polarized antenna, and it has been passed through the preset time period.
  • the first vertically polarized antenna communicates with the terminal device.
  • the second target antenna of the main ear used by the main earphone when the first Bluetooth data packet is transmitted in the preset time period is the first horizontally polarized antenna.
  • the first horizontally polarized antenna communicates with the slave headset.
  • the second target antenna of the main ear used by the main earphone when the first Bluetooth data packet is transmitted in the preset time period is the first vertically polarized antenna.
  • the first vertically polarized antenna communicates with the slave headset.
  • the first target antenna of the slave ear used when the first Bluetooth data packet is transmitted within the preset time period is the second horizontally polarized antenna, then within the preset time
  • the segment communicates with the terminal equipment through the second horizontally polarized antenna all the time.
  • the first target antenna of the slave earphone used when the first Bluetooth data packet is transmitted in the preset time period is the second vertically polarized antenna, and then it has been passed through the preset time period.
  • the second vertically polarized antenna communicates with the terminal device.
  • the second target antenna of the slave ear used when the first Bluetooth data packet is transmitted in the preset time period is the second horizontally polarized antenna, and it has been passed through the preset time period.
  • the second horizontally polarized antenna communicates with the main headset.
  • the second target antenna of the slave ear used when the first Bluetooth data packet is transmitted in the preset time period is the second vertically polarized antenna, and it has been passed through the preset time period.
  • the second vertically polarized antenna communicates with the main headset.
  • the master headset detects whether the communication object of the master headset changes, that is, the master headset detects whether the terminal device communicating with it is switched to the slave headset, or Whether the slave headset that communicates with it is switched to the terminal device.
  • the communication object of the master headset does not change, that is, within the preset time period, the terminal device that communicates with the master headset has always been the terminal device, or the slave headset has always been the master headset.
  • the antenna used in the communication is used for signal transmission, that is, the main headset performs signal transmission based on the antenna used for the first signal transmission with the communication object within a preset time period.
  • the slave headset detects whether the communication object of the slave headset changes, that is, the slave headset detects whether the terminal device communicating with it is switched to the master headset, or whether the master headset communicating with it is switched to the terminal device. .
  • the communication object of the slave headset does not change, that is, within the preset time period, the terminal device that communicates with the slave headset is always the terminal device or the master headset, the slave headset is based on the first
  • the antenna used for the first communication is used for signal transmission, that is, the signal is transmitted from the headset to the antenna used for the first signal transmission with the communication object within a preset time period.
  • the signal processing method provided by the present application can also keep the Bluetooth headset in a good state of transmitting signals at all times, further enhancing the anti-interference ability of the Bluetooth headset in a complex interference environment.
  • FIG. 3 is a schematic diagram of an apparatus for processing a signal provided by an embodiment of the present application.
  • Each unit included in the apparatus for processing a signal is used to perform each step in the embodiment corresponding to FIG. 1 and FIG. 2 .
  • FIG. 3 For details, please refer to the relevant descriptions in the respective embodiments of FIG. 1 and FIG. 2 . For convenience of explanation, only the parts related to this embodiment are shown. See Figure 3, including:
  • the first acquisition unit 310 is configured to acquire the first horizontally polarized antenna and the first vertically polarized antenna and/or the second horizontally polarized antenna when the main earphone and/or the secondary earphone detect the first radio frequency signal sent by the terminal device The first received signal strength indication corresponding to the first test signal of the first radio frequency signal packet header by the polarized antenna and the second vertically polarized antenna;
  • the first determination unit 320 is configured to, when the main earphone detects that the first received signal strength indication corresponding to the first horizontally polarized antenna is greater than or equal to the first received signal strength indication corresponding to the first vertically polarized antenna, It is determined that the first horizontally polarized antenna is the first target antenna for the main ear, and when it is detected that the first received signal strength indicator corresponding to the first horizontally polarized antenna is smaller than the first received signal corresponding to the first vertically polarized antenna When the signal strength is indicated, it is determined that the first vertically polarized antenna is the first target antenna of the main ear;
  • the second determination unit 330 is configured to, when the earphone detects that the first received signal strength indication corresponding to the second horizontally polarized antenna is greater than or equal to the first received signal strength indication corresponding to the second vertically polarized antenna, It is determined that the second horizontally polarized antenna is the first target antenna from the ear, and the first received signal strength indicator corresponding to the second horizontally polarized antenna is detected to be smaller than the first received signal corresponding to the second vertically polarized antenna. When the signal strength is indicated, it is determined that the second vertically polarized antenna is the first target antenna from the ear;
  • the second acquiring unit 340 is configured to acquire the first horizontally polarized antenna and the first vertically polarized antenna or the first The second received signal strength indication corresponding to the second test signal in the packet header of the second radio frequency signal by the two horizontally polarized antennas and the second vertically polarized antenna;
  • the third determination unit 350 is configured to, when the main earphone detects that the second received signal strength indication corresponding to the first horizontally polarized antenna is greater than or equal to the second received signal strength indication corresponding to the first vertically polarized antenna, It is determined that the first horizontally polarized antenna is the main ear and the second target antenna, and when it is detected that the second received signal strength indicator corresponding to the first horizontally polarized antenna is smaller than the second received signal corresponding to the first vertically polarized antenna When the signal strength is indicated, it is determined that the first vertically polarized antenna is the second target antenna for the main ear;
  • the fourth determination unit 360 is configured to, when the earphone detects that the second received signal strength indication corresponding to the second horizontally polarized antenna is greater than or equal to the second received signal strength indication corresponding to the second vertically polarized antenna, It is determined that the second horizontally polarized antenna is the second target antenna from the ear, and the second received signal strength indicator corresponding to the second horizontally polarized antenna is detected to be smaller than the second received signal corresponding to the second vertically polarized antenna. When the signal strength is indicated, it is determined that the second vertically polarized antenna is the second target antenna from the ear;
  • a first receiving unit 370 for the main earphone to receive a first radio frequency signal based on the first target antenna of the main ear, and to receive a second radio frequency signal based on the second target antenna of the main ear;
  • the second receiving unit 380 is configured to receive the first radio frequency signal from the earphone based on the first target antenna from the ear, and receive the second radio frequency signal from the earphone based on the second target antenna from the ear.
  • the device for processing signals further includes:
  • a sending unit is used for the main earphone to send a response signal to the terminal device through the first target antenna of the main ear.
  • the master headset communicates with the terminal device based on the first target antenna of the master ear in the first communication time slot, and/or the slave headset is based on the The first target antenna from the ear communicates with the terminal device;
  • the master headset communicates with the slave headset based on the master ear second target antenna and/or the slave headset communicates with the master headset based on the slave ear second target antenna;
  • the main earphone sends the response signal to the terminal device based on the main ear first target antenna in the third communication time slot;
  • the first communication time slot is earlier than the second communication time slot, and the second communication time slot is earlier than the third communication time slot.
  • the device further includes:
  • the first communication unit is used for the main earphone to communicate with the terminal device based on the first target antenna of the main ear used in the transmission of the first Bluetooth data packet in the preset time period, based on the preset time period.
  • the second target antenna of the master ear used when the first Bluetooth data packet is transmitted within the preset time period communicates with the slave earphone;
  • the second communication unit is used for the slave headset to communicate with the terminal device based on the first target antenna of the slave ear used when the first Bluetooth data packet is transmitted within the preset time period, and based on the preset time period
  • the second target antenna of the slave ear used in the transmission of the first Bluetooth data packet communicates with the master earphone.
  • the second radio frequency signal includes a synchronization signal and/or a forwarding signal.
  • the device further includes:
  • a third acquiring unit configured to acquire the corresponding values of the first horizontally polarized antenna and the first vertically polarized antenna and/or the second horizontally polarized antenna and the second vertically polarized antenna to the first test signal of the first radio frequency signal packet header a first signal-to-noise ratio and a first bit error rate; the first signal-to-noise ratio and the first bit error rate are used to determine the first target antenna of the master ear and the first target antenna of the slave ear.
  • the device further includes:
  • the fourth acquisition unit is used to acquire the second test signal corresponding to the second test signal of the packet header of the second radio frequency signal by the first horizontally polarized antenna and the first vertically polarized antenna or the second horizontally polarized antenna and the second vertically polarized antenna.
  • Signal-to-noise ratio and second bit error rate; the second signal-to-noise ratio and the second bit error rate are used to determine the second target antenna of the master ear and the second target antenna of the slave ear.
  • FIG. 4 is a schematic diagram of an apparatus for processing a signal provided by another embodiment of the present application.
  • the signal processing apparatus 4 of this embodiment includes: a processor 40 , a memory 41 , and computer-readable instructions 42 stored in the memory 41 and executable on the processor 40 .
  • the processor 40 executes the computer-readable instructions 42
  • the steps in each of the foregoing signal processing method embodiments are implemented, for example, S101 to S108 shown in FIG. 1 .
  • the processor 40 executes the computer-readable instructions 42
  • the functions of the units in the foregoing embodiments are implemented, for example, the functions of the units 310 to 380 shown in FIG. 3 .
  • the computer readable instructions 42 may be divided into one or more units, the one or more units are stored in the memory 41 and executed by the processor 40 to complete the present application .
  • the one or more units may be a series of computer-readable instruction segments capable of performing a specific function, and the instruction segments are used to describe the execution of the computer-readable instructions 42 in the signal processing apparatus.
  • the computer readable instructions 42 may be divided into a first obtaining unit, a first determining unit, a second determining unit, a second obtaining unit, a third determining unit, a fourth determining unit, a first receiving unit, and a second determining unit
  • the receiving unit, the specific functions of each unit are as described above.
  • the device for processing signals may include, but is not limited to, a processor 40 and a memory 41 .
  • FIG. 4 is only an example of an apparatus for processing signals, and does not constitute a limitation on the apparatus for processing signals, and may include more or less components than those shown in the figure, or combine some components, or different parts, etc.
  • the so-called processor 40 may be a central processing unit, or other general-purpose processors, digital signal processors, application-specific integrated circuits, off-the-shelf programmable gate arrays or other programmable logic devices, discrete gate or transistor logic devices, and discrete hardware components. Wait.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory 41 may be an internal storage unit of the apparatus for processing signals, such as a memory of the apparatus for processing signals.
  • the memory 41 is used to store the computer readable instructions and other programs and data.
  • Embodiments of the present application further provide a computer-readable medium for storing computer program codes, where the computer program includes instructions for executing the above method for processing a signal.
  • the readable medium may be a read-only memory or a random access memory (random access), which is not limited in this embodiment of the present application.
  • the present application also provides a computer program product that, when the computer program product runs on the Bluetooth headset, causes the Bluetooth headset to execute the steps of the above method for processing signals.
  • the embodiment of the present application also provides a chip or integrated circuit, the chip or integrated circuit includes: a processor for calling and running a computer program from a memory, so that a Bluetooth headset installed with the chip or integrated circuit executes the above processing signal Methods.
  • An embodiment of the present application further provides a Bluetooth headset, characterized in that a horizontally polarized antenna and a vertically polarized antenna are provided in the Bluetooth headset, and the Bluetooth headset includes a memory, a processor, and a A computer program executable on the processor, characterized in that, when the processor executes the computer program, the above-mentioned method for processing a signal is implemented.

Abstract

La présente demande est applicable au domaine des communications. L'invention concerne un procédé et un appareil de traitement d'un signal, un écouteur Bluetooth et un support d'enregistrement. Le procédé de traitement d'un signal est appliqué à une paire d'écouteurs Bluetooth. La paire d'écouteurs Bluetooth comprend un écouteur maître et un écouteur esclave, et l'écouteur maître et l'écouteur esclave sont chacun dotés de deux types d'antennes dans différentes directions. Lorsque l'écouteur maître et/ou l'écouteur esclave détecte/détectent un premier signal radiofréquence, une antenne appropriée est sélectionnée, selon un premier indicateur d'intensité de signal reçu correspondant à un premier signal de test d'un premier en-tête de signal radiofréquence, pour recevoir le premier signal radiofréquence; et lorsque l'écouteur maître ou l'écouteur esclave détecte un second signal radiofréquence, une antenne appropriée est sélectionnée, selon un second indicateur d'intensité de signal reçu correspondant à un second signal de test d'un second en-tête de signal radiofréquence, pour recevoir le second signal radiofréquence. Dans le procédé, des écouteurs Bluetooth sélectionnent une antenne appropriée pour recevoir un signal radiofréquence, de telle sorte que des transmissions de signaux entre un écouteur maître et un équipement terminal et entre l'écouteur maître et un écouteur esclave atteignent tous deux l'état optimal, empêchant ainsi les écouteurs Bluetooth d'avoir un retard sonore, une latence, etc.
PCT/CN2020/123423 2020-10-23 2020-10-23 Procédé et appareil de traitement de signal, écouteur bluetooth et support d'enregistrement WO2022082782A1 (fr)

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PCT/CN2020/123423 WO2022082782A1 (fr) 2020-10-23 2020-10-23 Procédé et appareil de traitement de signal, écouteur bluetooth et support d'enregistrement
CN202080002459.9A CN112703746B (zh) 2020-10-23 2020-10-23 一种处理信号的方法、装置、蓝牙耳机及存储介质

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PCT/CN2020/123423 WO2022082782A1 (fr) 2020-10-23 2020-10-23 Procédé et appareil de traitement de signal, écouteur bluetooth et support d'enregistrement

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