# US 11,909,239 B2 · Wireless charging dock > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,909,239 B2 - Document ID: US11909239B2 - Status: Granted - Kind: B2 - Application number: 17/834,572 - Filed: 2022-06-07 - Published: 2022-09-22 - Granted: 2024-02-20 - Earliest claimed: 2015-06-02 - Assignees: Voyetra Turtle Beach, Inc. - Applicants: Voyetra Turtle Beach, Inc. - Inventors: Thomas Michael Schoene; Scot Robert Cochran; Nicholas Richard Bourne - Web page: https://patentgrep.com/patent/US11909239B2 ## CPC - H02J 7/70: characterised by the mechanical construction - H02J 7/50: acting upon multiple batteries simultaneously or sequentially - H02J 7/731: {specially adapted for holding portable devices containing batteries (H02J7/751 takes precedence)} - H02J 7/94: in response to battery current - H02J 50/00: Circuit arrangements or systems for wireless supply or distribution of electric power - H02J 50/10: using inductive coupling - H04R 1/1025: Accumulators specially adapted for earpieces; Arrangements specially adapted for charging thereof - H04R 1/1041: {Mechanical or electronic switches, or control elements (switches in general H01H)} - H04W 52/0235: {where the received signal is a power saving command} - H02J 7/42: with electronic devices having internal batteries, e.g. mobile phones - H02J 7/96: in response to battery voltage - H02J 2105/44: Portable electronic devices - H04R 1/1008: {Earpieces of the supra-aural or circum-aural type} - H04R 2420/07: Applications of wireless loudspeakers or wireless microphones - Y02D 30/70: in wireless communication networks - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - 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) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - 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 ## Abstract A method and system for a headset wireless charging dock, where the charging dock comprises a radio, a coil, and a proximity sensor. The method may comprise sensing a presence of a headset using the proximity sensor, wirelessly charging a battery in the headset utilizing the coil, and wirelessly communicating commands, using the radio, to the headset to power down when fully charged. The command may be communicated to the headset utilizing a protocol and a RF radio used by the headset to receive audio signals. The command communicated to the headset may power down audio processing circuitry in the headset. The charging induction coil may be inductively coupled to a coil in the headset to wirelessly charge the battery in the headset. The proximity sensor may comprise a Hall sensor. ## Claims ### Claim 1 A charging dock, the charging dock comprising: a sensor operable to determine a presence of a device; a coil operable to charge a battery of the device via inductive coupling; and a radio operable to wirelessly communicate a power down command to the device when the battery of the device is fully charged. ### Claim 2 (depends on 1) The charging dock of claim 1, wherein the device is a headset. ### Claim 3 (depends on 1) The charging dock of claim 1, wherein the inductive coupling provides a wireless charge. ### Claim 4 (depends on 1) The charging dock of claim 1, wherein the radio is operable to communicate with the device utilizing a protocol used by the device to receive audio signals. ### Claim 5 (depends on 1) The charging dock of claim 1, wherein the radio is operable to communicate with the device via an RIF radio in the device. ### Claim 6 (depends on 1) The charging dock of claim 1, wherein the power down command instructs the device to power down audio processing circuitry. ### Claim 7 (depends on 1) The charging dock of claim 1, wherein the coil is inductively coupled to a coil in the device to wirelessly charge the battery of the device. ### Claim 8 (depends on 1) The charging dock of claim 1, wherein the sensor comprises a proximity sensor. ### Claim 9 (depends on 1) The charging dock of claim 1, wherein the charging dock is operable to determine, via a measurement of current in the coil, that the battery of the device is fully charged. ### Claim 10 (depends on 1) The charging dock of claim 1, wherein the charging dock is operable to receive a charging complete message from the device. ### Claim 11 A method for charging a device, the method comprising: determining a presence of a device via a sensor; charging a battery of the device via inductive coupling; and wirelessly communicating a powerdown command to the device when the battery of the device is fully charged. ### Claim 12 (depends on 11) The method of claim 11, wherein the device is a headset. ### Claim 13 (depends on 11) The method of claim 11, wherein the inductive coupling provides a wireless charge. ### Claim 14 (depends on 11) The method of claim 11, wherein the wirelessly communicating utilizes a protocol used by the device to receive audio signals. ### Claim 15 (depends on 11) The method of claim 11, wherein the device comprises an RF radio. ### Claim 16 (depends on 11) The method of claim 11, wherein the power down command instructs the device to power down audio processing circuitry. ### Claim 17 (depends on 11) The method of claim 11, wherein the coil is inductively coupled to a coil in the device to wirelessly charge the battery of the device. ### Claim 18 (depends on 11) The method of claim 11, wherein the sensor comprises a proximity sensor. ### Claim 19 (depends on 11) The method of claim 11, wherein the method comprises determining, via a measurement of current in the coil, that the battery of the device is fully charged. ### Claim 20 (depends on 11) The method of claim 11, wherein the method comprises receiving a charging complete message from the device.