# US 2010/0164433 A1 · Wireless Battery Charging Systems, Battery Systems and Charging Apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2010/0164433 A1 - Document ID: US20100164433A1 - Status: Published application - Kind: A1 - Application number: 12/345,951 - Filed: 2008-12-30 - Published: 2010-07-01 - Earliest claimed: 2008-12-30 - Assignees: Motorola, Inc. - Inventors: Anand Janefalkar; Mark Carlson - Web page: https://patentgrep.com/patent/US20100164433A1 ## CPC - H02J 50/402: {the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas} - H02J 7/70: characterised by the mechanical construction - H02J 50/15: using ultrasonic waves - H02N 2/188: {adapted for resonant operation} - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - H02N: ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR ## Abstract Disclosed is a battery charging system, a battery system, a charging apparatus, wherein the charging apparatus includes an ultrasonic wave generator configured to be in intimate proximity to an ultrasonic wave receiving device including a piezoelectric component. The ultrasonic wave receiving device includes a piezoelectric component of a resonant frequency substantially matching the frequency of the transmitted ultrasonic waves from the ultrasonic wave generator. A gel-based surface of the charging apparatus is configured to be in intimate proximity with both the piezoelectric component and the ultrasonic wave generator. The piezoelectric component is coupled to a battery by a circuit, the piezoelectric component configured to receive ultrasonic wave vibrations of the ultrasonic waves, the ultrasonic wave receiving device further including a circuit configured to convert the mechanical vibrations to electrical energy in accordance with an inverse piezoelectric effect. The battery is configured to receive and store the energy. ## Claims ### Claim 1 A battery charging system, comprising: a charging apparatus including an ultrasonic wave generator configured to be in intimate proximity to a piezoelectric component of an ultrasonic wave receiving device; and the ultrasonic wave receiving device including the piezoelectric component of a resonant frequency substantially matching the frequency of the transmitted ultrasonic waves from the ultrasonic wave generator; the piezoelectric component coupled to a battery, the piezoelectric component configured to receive ultrasonic wave vibrations of the ultrasonic waves, the ultrasonic wave receiving device further including a circuit configured to convert the mechanical vibrations to electrical energy in accordance with an inverse piezoelectric effect, wherein the battery is configured to receive and store the energy. ### Claim 2 (depends on 1) The charging apparatus of claim 1, comprising: a gel-based surface configured to be in intimate proximity with both the piezoelectric component and the ultrasonic wave generator. ### Claim 3 (depends on 1) The charging apparatus of claim 1, comprising: an alignment system configured to align the ultrasonic wave generator, the gel-based surface, and the piezoelectric component. ### Claim 4 (depends on 1) The battery charging system of claim 1 wherein to convert the vibrations to energy includes converting the vibrations to at least one of a charging voltage and a charging current. ### Claim 5 (depends on 1) The battery charging system of claim 1 wherein the piezoelectric component and the battery are housed in a housing of an electronic device. ### Claim 6 (depends on 1) The battery charging system of claim 1 wherein the resonant frequency of the piezoelectric component is multiples of the resonant frequency of the ultrasonic waves. ### Claim 7 (depends on 1) The battery charging system of claim 1 wherein piezoelectric component is configured to receive frequencies of environmental vibrations. ### Claim 8 (depends on 1) The battery charging system of claim 1 wherein the piezoelectric component is configured to receive vocal frequencies. ### Claim 9 (depends on 1) The battery charging system of claim 1 the ultrasonic wave receiving device includes a plurality of piezoelectric components wherein a first piezoelectric component of the plurality of piezoelectric components resonates as at first resonant frequency and a second piezoelectric commonest resonates at a second resonant frequency. ### Claim 10 A battery system, comprising: an ultrasonic wave receiving device including a piezoelectric component having a resonance frequency is configured to be coupled to a battery, the piezoelectric component configured to receive ultrasonic wave vibrations, the battery system including a circuit configured to convert the vibrations to energy in accordance with an inverse piezoelectric effect, wherein the battery is configured to receive and store the energy, and wherein the ultrasonic receiving device is configured to be in intimate proximity with an ultrasonic generating apparatus. ### Claim 11 (depends on 10) The battery charging system of claim 10 wherein to convert the vibrations to energy includes converting the vibrations to at least one a charging voltage and current. ### Claim 12 (depends on 10) The ultrasonic generating apparatus of claim 10, comprising: a gel-based surface configured to be in intimate proximity with both the piezoelectric component and the ultrasonic wave generator. ### Claim 13 (depends on 10) The battery charging system of claim 10 wherein the piezoelectric component and the battery are housed in a housing of an electronic device. ### Claim 14 (depends on 10) The battery charging system of claim 10 wherein the resonance frequency of the piezoelectric component is configured to receive frequencies of environmental vibrations. ### Claim 15 (depends on 10) The battery charging system of claim 10 wherein the piezoelectric component is configured to receive vocal frequencies. ### Claim 16 (depends on 10) The battery charging system of claim 10 the ultrasonic wave receiving device includes a plurality of piezoelectric components wherein a first piezoelectric component of the plurality of piezoelectric components resonates as at first resonant frequency and a second piezoelectric commonest resonates at a second resonant frequency. ### Claim 17 A charging apparatus, comprising: an ultrasonic wave generator configured to generate ultrasonic waves having a particular resonance frequency; and a gel-based surface configured to transmit ultrasonic waves therethrough wherein the charging apparatus is configured to be in intimate proximity with an ultrasonic wave receiving device. ### Claim 18 (depends on 17) The charging apparatus of claim 17, wherein the particular resonance frequency of the ultrasonic waves is matched to a resonance frequency of a type of piezoelectric component. ### Claim 19 (depends on 17) The charging apparatus of claim 17, comprising: an alignment system configured to align the ultrasonic wave generator, the gel-based surface with an ultrasonic wave receiving device.