REMOTE POWER CHARGING OF ELECTRONIC DEVICES
First Claim
1. A method of providing electrical power to an electronic device, the method comprising:
- transmitting a first energy signal to the electronic device;
transmitting one or more additional energy signals to the electronic device, wherein each of the one or more additional energy signals is transmitted at a frequency that is different than the first energy signal; and
transmitting a feedback signal from the electronic device indicating whether the one or more additional energy signals constructively interferes with the first energy signal.
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Accused Products
Abstract
A wireless charging and power system for electronic devices and method for communicating power to a power receiver employing wireless energy transmission are disclosed. The remote charging system includes a power transmission unit, which transmits energy as a plurality of constructive transmitted frequencies, and a power receiver system that receives the transmitted frequencies. The power receiver system is preferably incorporated in a device and includes an energy receptor capable of receiving the wireless transmitted energy and transferring the energy from the transmitted frequencies to an energy storage device included in the device. The power transmission unit receives and tracks a power request signal from the power receiver system to track the power receiver system location during energy transmission. Data streams may be incorporated into the wireless signals of the remote charging system, allowing the remote charging system to function as a communications pathway as well as a power delivery system.
457 Citations
53 Claims
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1. A method of providing electrical power to an electronic device, the method comprising:
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transmitting a first energy signal to the electronic device;
transmitting one or more additional energy signals to the electronic device, wherein each of the one or more additional energy signals is transmitted at a frequency that is different than the first energy signal; and
transmitting a feedback signal from the electronic device indicating whether the one or more additional energy signals constructively interferes with the first energy signal. - View Dependent Claims (2, 3, 25)
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4. A system for providing electrical power to an electronic device, the system comprising:
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a power transmission unit configured to transmit one or more frequencies of a energy signal;
a power receiving module configured to receive the one or more frequencies of the energy signal;
a feedback module configured to transmit a feedback signal to the power transmission unit indicating a level of constructive interference in the received one or more frequencies of the energy signal. - View Dependent Claims (5)
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6. A method of transmitting a wireless energy signal from a power transmission unit, the method comprising:
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(a) transmitting a first frequency energy signal and a second frequency energy signal;
(b) determining if the first frequency and second frequency energy signals have constructively combined at a power receiving unit;
(c) in response to determining that the first frequency and second frequency energy signals have not constructively combined at the power receiving unit, adjusting a value of the second frequency and returning to step (a); and
(d) in response to determining that the first frequency and second frequency energy signals have constructively combined at the power receiving unit, continuing to transmit the first frequency and the second frequency energy signals. - View Dependent Claims (7)
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8. A method of receiving a wireless energy signal at a power receiving unit, the method comprising:
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(a) receiving a first frequency energy signal and a second frequency energy signal;
(b) determining if a power level of the first frequency energy signal and the second frequency energy signal is greater than a power level of the first frequency energy signal;
(c) in response to determining that the power level of the first and second frequency energy signals is not greater than the power level of the first frequency energy signal, returning to step (a); and
(d) in response to determining that the power level of the first and second frequency energy signals is greater than the power level of the first frequency energy signal, transmitting a feedback signal to a power transmission unit. - View Dependent Claims (9, 10, 11)
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12. A method of charging a battery of a portable device, the method comprising:
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(a) transmitting a charge request from the portable device to a charge device located remote to the portable device;
(b) transmitting a first energy signal from the charge device;
(c) receiving at the portable device the first energy signal;
(d) converting the first energy signal to an energy form that may be stored in the battery of the portable device;
(e) transmitting an acknowledgment signal from the portable device to the charge device, wherein the acknowledgment signal indicates that the first energy signal has been received;
(f) sequentially transmitting a plurality of additional energy signals from the charge device concurrently with transmission of the first energy signal, wherein each of the additional energy signals is transmitted at a different frequency;
(g) transmitting from the portable device to the charge device a signal indicating that one of the additional energy signals has constructively interfered with the first energy signal; and
(h) stopping sequential transmission of the additional energy signals and transmitting from the charge device to the portable device the one of the plurality of energy signals.
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13. A wireless recharge system for electronic equipment comprising:
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a power source;
a wireless energy signal unit operably connected to the power source, the power transmission unit comprising;
a power module configured to transmit a wireless energy signal comprising one or more energy signals transmitted at different frequencies;
a control module operably connected to the power module, the control module responsive to a request to activate the power module; and
a first power receiver system comprising;
a power receiving module configured to receive at least a portion of the wireless energy signal;
an energy storage module;
an energy conversion module configured to transform the wireless energy signal to an energy form that may be stored in the energy storage module;
a power usage module operatively coupled to the energy storage module and configured to detect a quantity of power stored in the energy storage module; and
a feedback module configured to communicate a feedback signal to the power transmission unit indicating a quantity of energy received at the first power receiving module and indicating a quantity of energy stored in the energy storage module. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 26, 27, 28, 29, 30)
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31. A wireless recharge and communication system comprising:
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an electronic device including a first information signal receiver and decoder;
a combination power transmitter and communication unit for wirelessly transmitting a constructive wireless energy signal and a first information signal to the first information signal receiver, wherein the received first information signal is decoded by the decoder. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. A method for wirelessly recharging a device incorporating a power receiver system having a power receiving module, the method comprising:
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determining a stored quantity indicative of a quantity of energy stored in the device;
determining a consumed quantity indicative of a quantity of energy consumed by the device;
transmitting a power request signal from the device in response to determining that a ratio of the stored quantity to the consumed quantity is less that a predetermined threshold;
transmitting a wireless energy signal from a first power transmission unit to the power receiving module in response to receiving the power request signal;
stopping transmission of the power request signal from the device in response to determining that the ratio of the stored quantity to the consumed quantity is more than another predetermined threshold; and
ending transmission of the wireless energy signal when the power request signal is stopped. - View Dependent Claims (43, 44, 45, 46, 47, 48)
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49. A system for providing electrical power to an electronic device, the system comprising:
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means for transmitting a first energy signal to the electronic device;
means for transmitting one or more additional energy signals to the electronic device, wherein each of the one or more additional energy signals is transmitted at a frequency that is different than the first energy signal; and
means for transmitting a feedback signal from the electronic device indicating whether the one or more additional energy signals constructively interferes with the first energy signal.
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50. A system for wirelessly recharging a device incorporating a power receiver system having a power receiving module, the system comprising:
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means for determining a stored quantity indicative of a quantity of energy stored in the device;
means for determining a consumed quantity indicative of a quantity of energy consumed by the device;
means for transmitting a power request signal from the device in response to determining that a ratio of the stored quantity to the consumed quantity is less that a predetermined threshold;
means for transmitting a wireless energy signal from a first power transmission unit to the power receiving module in response to receiving the power request signal;
means for stopping transmission of the power request signal from the device in response to determining that the ratio of the stored quantity to the consumed quantity is more than another predetermined threshold; and
means for ending transmission of the wireless energy signal when the power request signal is stopped.
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51. A method of providing electrical power to an electronic device, the method comprising:
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transmitting a first energy signal to the electronic device;
transmitting one or more additional energy signals to the electronic device, wherein each of the one or more additional energy signals is transmitted at a phase that is different than the first energy signal; and
transmitting a feedback signal from the electronic device indicating whether the one or more additional energy signals constructively interferes with the first energy signal.
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52. A system for providing electrical power to an electronic device, the system comprising:
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a power transmission unit configured to transmit one or more phases of an energy signal;
a power receiving module configured to receive the one or more phases of the energy signal; and
a feedback module configured to transmit a feedback signal to the power transmission unit indicating a level of constructive interference in the received one or more frequencies of the energy signal. - View Dependent Claims (53)
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Specification