# US 11,452,172 B2 · Method for switching master earphone, mobile terminal, and non-transitory computer-readable storage medium > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,452,172 B2 - Document ID: US11452172B2 - Status: Granted - Kind: B2 - Application number: 17/159,115 - Filed: 2021-01-26 - Published: 2021-05-20 - Granted: 2022-09-20 - Earliest claimed: 2018-07-27 - Assignees: Guangdong Oppo Mobile Telecommunications Corp., Ltd. - Applicants: Guangdong Oppo Mobile Telecommunications Corp., Ltd. - Inventors: Jinhua Gong; Baoti Li - Web page: https://patentgrep.com/patent/US11452172B2 ## CPC - H04W 84/20: Leader-follower arrangements - G10L 25/48: specially adapted for particular use - G10L 25/78: Detection of presence or absence of voice signals (switching of direction of transmission by voice frequency in two-way loud-speaking telephone systems H04M9/10) - H04L 12/66: Arrangements for connecting between networks having differing types of switching systems, e.g. gateways - H04M 1/6066: {including a wireless connection} - H04M 1/72412: using two-way short-range wireless interfaces - H04R 1/1041: {Mechanical or electronic switches, or control elements (switches in general H01H)} - H04W 40/16: based on interference - H04W 40/18: based on predicted events - H04W 40/20: based on geographic position or location - G10L 15/22: Procedures used during a speech recognition process, e.g. man-machine dialogue - H04L 47/28: in relation to timing considerations - H04M 2250/74: with voice recognition means - H04R 1/1016: {Earpieces of the intra-aural type} - H04R 1/1025: Accumulators specially adapted for earpieces; Arrangements specially adapted for charging thereof - H04R 2420/07: Applications of wireless loudspeakers or wireless microphones - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - G10L: SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) - H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K) ## Abstract A method for switching a master earphone, a mobile terminal, and a non-transitory computer-readable storage medium are provided in implementations of the present disclosure. The method includes the following. When a mobile terminal is in a calling status, whether a condition for switching a master earphone is met is detected. When the condition is met, at least one silent time window is predicted based on voice call data. Within a first silent time window, the communication connection between the mobile terminal and a first earphone is disconnected, and a communication connection between the mobile terminal and a second earphone is established, where the first silent time window is any one of the at least one silent time window. ## Claims ### Claim 1 A method for switching a master earphone, applicable to a mobile terminal that is in communication connection with a first earphone of a wireless earphone, the first earphone being in communication connection with a second earphone of the wireless earphone, and the method comprising: detecting whether a condition for switching the master earphone is met when the mobile terminal is in a calling status; predicting at least one silent time window based on voice call data when the condition is met; and disconnecting the communication connection between the mobile terminal and the first earphone and establishing a communication connection between the mobile terminal and the second earphone within a first silent time window, wherein the first silent time window is any one of the at least one silent time window; wherein predicting the at least one silent time window based on the voice call data comprises: identifying whether the voice call data contains a preset keyword; determining a type of the preset keyword; determining a target pause duration corresponding to the type of the preset keyword according to a correspondence between types of the preset keyword and pause durations; determining whether the target pause duration is longer than a reference switching duration; and predicting the target pause duration after a voice segment containing the preset keyword as a silent time window when the voice call data contains the preset keyword and the target pause duration is longer than the reference switching duration. ### Claim 2 (depends on 1) The method of claim 1, wherein detecting whether the condition for switching the master earphone is met comprises: detecting a first distance between the mobile terminal and the first earphone, a second distance between the mobile terminal and the second earphone, and a third distance between the first earphone and the second earphone; and determining that the condition for switching the master earphone is met when the first distance is greater than the second distance and the third distance is greater than or equal to a first threshold. ### Claim 3 (depends on 1) The method of claim 1, wherein detecting whether the condition for switching the master earphone is met comprises: acquiring a first received signal strength indicator (RSSI) of a signal received by the mobile terminal from the first earphone; and determining that the condition for switching the master earphone is met when the first RSSI is less than a preset strength threshold. ### Claim 4 (depends on 1) The method of claim 1, wherein detecting whether the condition for switching the master earphone is met comprises: acquiring a remaining electric quantity of the first earphone and a remaining electric quantity of the second earphone; and detecting that the condition for switching the master earphone is met when the remaining electric quantity of the first earphone is less than the remaining electric quantity of the second earphone and a difference between the remaining electric quantity of the first earphone and the remaining electric quantity of the second earphone is greater than a preset remaining electric quantity threshold. ### Claim 5 A mobile terminal comprising a processor, a memory configured to store one or more programs, wherein the one or more programs are configured to be executed by the processor, and comprise instructions for performing actions, comprising: detecting whether a condition for switching a master earphone is met when the mobile terminal is in a calling status; predicting at least one silent time window based on voice call data when the condition is met; and disconnecting a communication connection between the mobile terminal and a first earphone of a wireless earphone and establishing a communication connection between the mobile terminal and a second earphone of the wireless earphone within a first silent time window, wherein the first silent time window is any one of the at least one silent time window; wherein the voice call data is between a first user and a second user, the first user is a user of the mobile terminal, and the one or more programs comprise instructions for predicting the at least one silent time window based on the voice call data comprise instructions for performing actions, comprising: acquiring a first average pause duration of the first user and a second average pause duration of the second user in previous call records between the first user and the second user; presetting a pause duration in voice data sent from the first user to the second user as a silent time window when the first average pause duration is longer than the second average pause duration; and presetting a pause duration in voice data sent from the second user to the first user as a silent time window when the second average pause duration is greater than the first average pause duration. ### Claim 6 (depends on 5) The mobile terminal of claim 5, wherein the one or more programs comprise instructions for detecting whether the condition for switching the master earphone is met comprise instructions for performing actions, comprising: detecting a first distance between the mobile terminal and the first earphone, a second distance between the mobile terminal and the second earphone, and a third distance between the first earphone and the second earphone; and determining that the condition for switching the master earphone is met when the first distance is greater than the second distance and the third distance is greater than or equal to a first threshold. ### Claim 7 (depends on 5) The mobile terminal of claim 5, wherein the one or more programs comprise instructions for detecting whether the condition for switching the master earphone is met comprise instructions for performing actions, comprising: acquiring a first received signal strength indicator (RSSI) of a signal received by the mobile terminal from the first earphone; and determining that the condition for switching the master earphone is met when the first RSSI is less than a preset strength threshold. ### Claim 8 (depends on 5) The mobile terminal of claim 5, wherein the one or more programs comprise instructions for detecting whether the condition for switching the master earphone is met comprise instructions for performing actions, comprising: acquiring a remaining electric quantity of the first earphone and a remaining electric quantity of the second earphone; and detecting that the condition for switching the master earphone is met when the remaining electric quantity of the first earphone is less than the remaining electric quantity of the second earphone and a difference between the remaining electric quantity of the first earphone and the remaining electric quantity of the second earphone is greater than a preset remaining electric quantity threshold. ### Claim 9 A non-transitory computer-readable storage medium configured to store computer programs for electronic data interchange (EDI) which, when executed, are operable with a computer to perform actions, comprising: detecting whether a condition for switching a master earphone is met when a mobile terminal is in a calling status; predicting at least one silent time window based on voice call data when the condition is met; and disconnecting a communication connection between the mobile terminal and a first earphone and establishing a communication connection between the mobile terminal and a second earphone within a first silent time window, wherein the first silent time window is any one of the at least one silent time window; wherein the voice call data is between a first user and a second user, the first user is a user of the mobile terminal, and in terms of predicting the at least one silent time window based on voice call data when the condition is met, the computer programs for EDI, when executed, are operable with the computer to perform actions, comprising: acquiring a first speech rate of the first user and a second speech rate of the second user; presetting a pause duration in the voice data sent from the second user to the first user as a silent time window when the first speech rate of the first user is greater than the second speech rate of the second user; and presetting a pause duration in the voice data sent from the first user to the second user as a silent time window when the second speech rate of the second user is greater than the first speech rate of the first user. ### Claim 10 (depends on 9) The non-transitory computer-readable storage medium of claim 9, wherein in terms of detecting whether the condition for switching the master earphone is met, the computer programs for EDI, when executed, are operable with the computer to perform actions, comprising: detecting a first distance between the mobile terminal and the first earphone, a second distance between the mobile terminal and the second earphone, and a third distance between the first earphone and the second earphone; and determining that the condition for switching the master earphone is met when the first distance is greater than the second distance and the third distance is greater than or equal to a first threshold. ### Claim 11 (depends on 9) The non-transitory computer-readable storage medium of claim 9, wherein in terms of detecting whether the condition for switching the master earphone is met, the computer programs for EDI, when executed, are operable with the computer to perform actions, comprising: acquiring a first received signal strength indicator (RSSI) of a signal received by the mobile terminal from the first earphone; and determining that the condition for switching the master earphone is met when the first RSSI is less than a preset strength threshold. ### Claim 12 (depends on 9) The non-transitory computer-readable storage medium of claim 9, wherein in terms of detecting whether the condition for switching the master earphone is met, the computer programs for EDI, when executed, are operable with the computer to perform actions, comprising: acquiring a remaining electric quantity of the first earphone and a remaining electric quantity of the second earphone; and detecting that the condition for switching the master earphone is met when the remaining electric quantity of the first earphone is less than the remaining electric quantity of the second earphone and a difference between the remaining electric quantity of the first earphone and the remaining electric quantity of the second earphone is greater than a preset remaining electric quantity threshold.