# US 10,483,806 B2 · Multi-mode energy receiver system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,483,806 B2 - Document ID: US10483806B2 - Status: Granted - Kind: B2 - Application number: 15/786,506 - Filed: 2017-10-17 - Published: 2018-04-19 - Granted: 2019-11-19 - Earliest claimed: 2016-10-18 - Assignees: PowerSphyr Inc. - Applicants: Powersphyr Inc. - Inventors: David F. Meng; William B. Wright - Web page: https://patentgrep.com/patent/US10483806B2 ## CPC - H02J 50/20: using microwaves or radio frequency waves - H02J 50/10: using inductive coupling - H02J 50/12: of the resonant type - H02J 50/23: characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas - H02J 50/70: involving the reduction of electric, magnetic or electromagnetic leakage fields - H02J 50/90: involving detection or optimisation of position, e.g. alignment - H04B 5/24: Inductive coupling - H04B 5/266: {One coil at each side, e.g. with primary and secondary coils} - H04B 5/79: for data transfer in combination with power transfer - H01Q 3/04: for varying one co-ordinate of the orientation - H01Q 7/00: Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop - H01Q 9/30: with feed to end of elongated active element, e.g. unipole (H01Q9/44 takes precedence) - H01Q 9/42: with folded element, the folded parts being spaced apart a small fraction of the operating wavelength - H01Q 19/10: using reflecting surfaces - H02M 1/12: Arrangements for reducing harmonics from AC input or output - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - H04B: TRANSMISSION - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) - H02M: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P) ## Abstract A device is provided that includes a processor configured to identify a power transferring device and to determine a range configuration relative to the power transferring device, and to determine a power status of the device. The device also includes a first antenna configured to receive an oscillating power signal from the power transferring device at a first selected frequency based on the range configuration relative to the power transferring device, and on the power status of the device, and a first rectifier circuit configured to convert the oscillating power signal from the first antenna at the first selected frequency into a direct-current signal to charge a device load. A method for using the above device is also provided. ## Claims ### Claim 1 A device comprising: a processor configured to identify a power transferring device, to determine a range configuration relative to the power transferring device, and to determine a power status of the device; a first antenna configured to receive an oscillating power signal from the power transferring device at a first selected frequency based on the range configuration relative to the power transferring device, and based on the power status of the device; and a first rectifier circuit configured to convert the oscillating power signal from the first antenna at the first selected frequency into a direct-current signal to charge a device load. ### Claim 2 (depends on 1) The device of claim 1, further comprising a second antenna configured to receive an inductively coupled magnetic power signal from the power transferring device at a second selected frequency when the processor determines a near field range configuration relative to the power transferring device and a power level lower than a threshold as the power status of the device. ### Claim 3 (depends on 1) The device of claim 1, wherein the first rectifier circuit comprises a balancing circuit configured to receive a differential input from the oscillating power signal from the first antenna. ### Claim 4 (depends on 1) The device of claim 1, further comprising a switch to transmit the direct-current signal to an external device or to a battery. ### Claim 5 (depends on 1) The device of claim 1, wherein the first antenna is configured to detect multiple wireless signals operating at multiple frequencies, the processor further configured to tune the first antenna at a frequency of one of the multiple wireless signals and to cause the first rectifier circuit to convert the one of the wireless signals into the direct-current signal. ### Claim 6 (depends on 1) The device of claim 1, further comprising a power protection circuit configured to determine a fault condition in the direct-current signal, the fault condition comprising one of an over voltage condition, an over charge condition, and an over temperature condition. ### Claim 7 (depends on 1) The device of claim 1, further comprising an amplifier circuit configured to amplify the oscillating power signal from the first antenna and provide an amplified oscillating signal to the first rectifier circuit. ### Claim 8 (depends on 1) The device of claim 1, wherein the first rectifier circuit comprises a matching circuit configured to balance a differential coupling of the first antenna to provide the direct-current signal to the device load. ### Claim 9 (depends on 1) The device of claim 1, wherein the first rectifier circuit comprises a radio-frequency shield to prevent a harmonic re-radiation of the oscillating power signal. ### Claim 10 (depends on 1) The device of claim 1, wherein the oscillating power signal has a bandwidth and the first rectifier circuit is configured to convert a first portion of the oscillating power signal within a first portion of the bandwidth to charge a first device load and a second portion of the oscillating power signal within a second portion of the bandwidth to charge a second device load. ### Claim 11 A method of charging a mobile electronic device, comprising: identifying, by a power receiving unit, a power transferring unit in a proximity of the power receiving unit; determining a range configuration between the power transferring unit and the power receiving unit; determining a power status of the power receiving unit; selecting a first antenna in the power receiving unit based on the range configuration between the power transferring unit and the power receiving unit, and on the power status of the power receiving circuit; receiving, with the first antenna, an oscillating power signal from the power transferring unit at a selected frequency; converting the oscillating power signal from the power transferring unit at the selected frequency into a direct-current signal; and providing the direct-current signal to a device load. ### Claim 12 (depends on 11) The method of claim 11, wherein converting the oscillating power signal from the power transferring unit at the selected frequency into a direct-current signal comprises balancing a differential input from the first antenna. ### Claim 13 (depends on 11) The method of claim 11, wherein receiving, with the first antenna, an oscillating power signal from the power transferring unit comprises tuning a radio-frequency amplifier circuit coupled to the first antenna at the selected frequency in the power receiving unit. ### Claim 14 (depends on 11) The method of claim 11, wherein selecting a first antenna in the power receiving unit comprises selecting a radio-frequency antenna to receive a directed radio-frequency power when the range configuration between the power transferring unit and the power receiving unit is within a far field, and selecting an inductively coupled antenna when the range configuration between the power transferring unit and the power receiving unit is within a near field. ### Claim 15 (depends on 11) The method of claim 11, wherein selecting the first antenna in the power receiving unit comprises selecting a radio-frequency antenna configured to receive a propagating, directed radio-frequency signal as the oscillating power signal when the range configuration between the power transferring unit and the power receiving unit is beyond a near field configuration and within a far field configuration. ### Claim 16 (depends on 11) The method of claim 11, wherein selecting the first antenna in the power receiving unit comprises simultaneously selecting a radio-frequency antenna configured to receive a propagating, directed radio-frequency signal and an inductively coupled antenna, when the range configuration between the power transferring unit and the power receiving unit is within a near field configuration. ### Claim 17 (depends on 11) The method of claim 11, further comprising receiving, in a reserve battery, at least a first portion of the direct-current signal, and providing at least a second portion of the direct-current signal from the reserve battery to a mobile electronic device docked in the power receiving unit. ### Claim 18 (depends on 11) The method of claim 11, further comprising: receiving, in a wireless receiver, multiple wireless signals operating at multiple frequencies, tuning the at least one power receiving circuit at a frequency of one of the wireless signals, and converting, in a rectifier circuit, the one of the wireless signals into the direct-current signal. ### Claim 19 (depends on 11) The method of claim 11, further comprising selecting a second antenna in the power receiving unit and receiving, with the second antenna, a second oscillating power signal from the power transferring unit at a second frequency, wherein the second oscillating power signal comprises a propagating, directed radio-frequency signal. ### Claim 20 A non-transitory, computer readable medium storing instructions which, when executed by a processor in a computer, cause the computer to perform a method comprising: identifying, by a power receiving unit, a power transferring unit in a proximity of the power receiving unit; determining a range configuration between the power transferring unit and the power receiving unit; determining a power status of the power receiving unit; selecting a first antenna in the power receiving unit based on the range configuration between the power transferring unit and the power receiving unit, and on the power status of the power receiving circuit; receiving, with the first antenna, an oscillating power signal from the power transferring unit at a selected frequency; converting the oscillating power signal from the power transferring unit at the selected frequency into a direct-current signal; and providing the direct-current signal to a device load.