# US 12,003,911 B2 · System for power consumption balancing in wireless earbuds > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,003,911 B2 - Document ID: US12003911B2 - Status: Granted - Kind: B2 - Application number: 17/530,254 - Filed: 2021-11-18 - Published: 2023-05-04 - Granted: 2024-06-04 - Earliest claimed: 2021-11-01 - Assignees: Hewlett-Packard Development Company, L.P. - Applicants: Hewlett-Packard Development Company, L.P. - Inventors: John S. Graham; Mingqi Wu; Shoubo Feng - Web page: https://patentgrep.com/patent/US12003911B2 ## CPC - G06F 1/163: {Wearable computers, e.g. on a belt} - H04R 1/1041: {Mechanical or electronic switches, or control elements (switches in general H01H)} - G06F 1/1688: {the I/O peripheral being integrated loudspeakers} - G06F 1/3212: Monitoring battery levels, e.g. power saving mode being initiated when battery voltage goes below a certain level - G06F 1/324: by lowering clock frequency - G06F 1/3278: {Power saving in modem or I/O interface} - G06F 1/3296: by lowering the supply or operating voltage - H04R 1/1016: {Earpieces of the intra-aural type} - H04R 5/033: Headphones for stereophonic communication {(details thereof, e.g. relating to batteries, cables or control elements H04R1/10)} - H04R 1/1025: Accumulators specially adapted for earpieces; Arrangements specially adapted for charging thereof - H04R 2420/07: Applications of wireless loudspeakers or wireless microphones - H04R 2460/03: Aspects of the reduction of energy consumption in hearing devices - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - 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 first earbud configured to communicate with a user media device and a second earbud. The first earbud includes a battery, a battery monitor configured to determine a power level of the battery, a mode controller. The mode controller is configured to receive a first power level value from the battery monitor and a second power level value from the second earbud and make a determination that the first earbud is operating in a primary mode in which the first earbud receives audio data from the user media device and transmits the received audio data to the second earbud. The mode controller is further configured, in response to the determination that the first earbud is operating in the primary mode, switch the first earbud from the primary mode to a secondary mode based on at least one of the first power level and the second power level. ## Claims ### Claim 1 A first earbud configured to communicate with a user media device and a second earbud, the first earbud comprising: a battery; a battery monitor configured to determine a power level of the battery; and a mode controller configured to: receive a first power level value from the battery monitor and a second power level value from the second earbud, make a determination that the first earbud is operating in a primary mode in which the first earbud receives audio data from the user media device and transmits the received audio data to the second earbud, in response to the determination that the first earbud is operating in the primary mode in a first instance, switch the first earbud from the primary mode to a secondary mode based on at least one of the first power level value and the second power level value satisfying a first threshold power value, and in response to the determination that the first earbud is operating in the primary mode in a second instance, switch the first earbud from the primary mode to a secondary mode based on at least one of the first power level value and the second power level value satisfying a second threshold power value, wherein the second threshold power value is less than the first threshold power value. ### Claim 2 (depends on 1) The first earbud of claim 1, wherein the mode controller is further configured to: determine that the first power level value is less than the first threshold power value and switch the first earbud to the secondary mode in response to a determination that the first power level value is less than the first threshold power value. ### Claim 3 (depends on 2) The first earbud of claim 2, wherein the first threshold power value is defined as an absolute term. ### Claim 4 (depends on 3) The first earbud of claim 3, wherein the mode controller is further configured to transmit to the second earbud, a first switch mode command that causes the second earbud to switch from the secondary mode to the primary mode. ### Claim 5 (depends on 4) The first earbud of claim 4, wherein the mode controller is further configured to: receive a second switch mode command from the second earbud, and switch, in response to receiving the second switch mode command, the first earbud from the secondary mode back to the primary mode. ### Claim 6 (depends on 5) The first earbud of claim 5, wherein the mode controller is further configured to: determine a difference between the first power level value and the second power level value, and determine whether the difference is greater than the second threshold power value. ### Claim 7 (depends on 6) The first earbud of claim 6, wherein the mode controller is further configured to switch the first earbud to the secondary mode in response to determining that the difference is greater than the second threshold power value. ### Claim 8 (depends on 6) The first earbud of claim 6, wherein the mode controller switches the first earbud from the secondary mode to the primary mode in response to a switch mode command received from the second earbud. ### Claim 9 (depends on 1) The first earbud of claim 1, wherein the mode controller is further configured to switch the first earbud to the secondary mode in response to a determination that a difference between the first and second power level values is greater than the first threshold power value. ### Claim 10 (depends on 1) The first earbud of claim 1, wherein the mode controller, in response to a determination that the first earbud is operating in the secondary mode, is further configured to switch the first earbud from the secondary mode to the primary mode. ### Claim 11 A method comprising: obtaining a first power level value of a battery of a first earbud and a second power level value from a second earbud; making a determination that the first earbud is operating in a primary mode in a first instance in which the first earbud receives audio data from a user media device and transmits the received audio data to the second earbud; in response to the determination that the first earbud is operating in the primary mode in the first instance, switching the first earbud from the primary mode to a secondary mode based on at least one of the first power level value and the second power level value satisfying a first threshold power value; making a determination that the first earbud is operating in the primary mode in a second instance; and in response to the determination that the first earbud is operating in the primary mode in the second instance, switching the first earbud from the primary mode to a secondary mode based on at least one of the first power level value and the second power level value satisfying a second threshold power value, wherein the second threshold power value is less than the first threshold power value. ### Claim 12 (depends on 11) The method of claim 11, further comprising: determining that the first power level value is less than the first threshold power value; and switching the first earbud to the secondary mode in response to a determination that the first power level value is less than the first threshold power value. ### Claim 13 (depends on 11) The method of claim 11, wherein the first threshold power value is defined as a relative term. ### Claim 14 (depends on 13) The method of claim 13, wherein the first threshold power value is defined in an absolute term. ### Claim 15 (depends on 13) The method of claim 13, further comprising: transmitting to the second earbud a first switch mode command that causes the second earbud to switch from the secondary mode to the primary mode. ### Claim 16 (depends on 15) The method of claim 15, further comprising: receiving a second switch mode command from the second earbud, and switching, in response to receiving the second switch mode command, the first earbud from the secondary mode back to the primary mode. ### Claim 17 (depends on 16) The method of claim 16, further comprising: determining whether a difference between the first power level value and the second power level value is less than the second threshold power value. ### Claim 18 (depends on 17) The method of claim 17, further comprising: switching the first earbud to the secondary mode in response to the determination that the difference is less than the second threshold power value. ### Claim 19 (depends on 17) The method of claim 17, further comprising: switching the first earbud from the secondary mode to the primary mode in response to a switch mode command received from the second earbud. ### Claim 20 A system comprising: a first earbud comprising a first battery; and a second earbud comprising a second battery, wherein the first earbud is configured to: obtain a first power level value of the first battery, receive, from the second earbud, a second power level value of the second battery, make a determination that the first earbud is operating in a primary mode in a first instance in which the first earbud receives audio data from a user media device and transmits the received audio data to the second earbud, in response to the determination that the first earbud is operating in the primary mode in the first instance, switch the first earbud from the primary mode to a secondary mode based on at least one of the first power level value and the second power level value satisfying a first threshold power value; make a determination that the first earbud is operating in the primary mode in a second instance; and in response to the determination that the first earbud is operating in the primary mode in the second instance, switch the first earbud from the primary mode to a secondary mode based on at least one of the first power level value and the second power level value satisfying a second threshold power value, wherein the second threshold power value is less than the first threshold power value.