| Patent application number | Description | Published |
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| 20100176937 | HARDWARE CONTINUITY LOOP FOR PREVENTING VEHICLE MISAPPROPRIATION - The specification and drawing figures describe and show a hardware continuity loop that is installable in a vehicle for preventing vehicle misappropriation. In one embodiment, the hardware continuity loop includes a plurality of cables that is operatively connected across selected components of a mobile computing platform, and a relay for controlling vehicle response to an attempted vehicle misappropriation. In another embodiment, the hardware continuity loop includes as detection circuit located in the mobile application server adapted to process a signal on sensing vehicle misappropriation, a plurality of programmable general purpose modules, and one or more low side drivers, for causing a vehicle response to attempted vehicle misappropriation. | 07-15-2010 |
| 20100181961 | ADAPTIVE POWER CONTROL FOR WIRELESS CHARGING - Exemplary embodiments are directed to wireless power transfer. A transmitter generates an electromagnetic field at a resonant frequency with a transmit antenna to create a coupling-mode region within a near field of the transmit antenna. The transmitter defines a beginning of a recurring period by on-off keying the electromagnetic field during a synchronization portion of the recurring period. During a power transmission portion of the recurring period, the transmitter couples portions of the electromagnetic field to different receive antennas of various receiver devices within the coupling-mode region. The transmitter also determines a power allocation within the recurring period for the various receiver devices disposed within the coupling-mode region and adjusts a power level of the near field radiation responsive to power requirements received from the receiver devices. | 07-22-2010 |
| 20100194335 | WIRELESS POWER AND DATA TRANSFER FOR ELECTRONIC DEVICES - Exemplary embodiments are directed to wireless power. A wireless charging device may comprise a charging region configured for placement of one or more chargeable devices. The charging device may further include at least one transmit antenna configured for transmitting wireless power within the charging region. Furthermore, the charging device is configured to exchange data between at least one chargeable device of the one or more chargeable devices. | 08-05-2010 |
| 20100201202 | WIRELESS POWER TRANSFER FOR FURNISHINGS AND BUILDING ELEMENTS - Exemplary embodiments are directed to wireless power transfer. A power transmitting device is attached to an existing furniture item or is embedded in a host furnishing. The power transmitting device includes a transmit antenna to wirelessly transfer power to a receive antenna by generating a near field radiation within a coupling-mode region. An amplifier applies a driving signal to the transmit antenna. A presence detector detects a presence of a receiver device within the coupling-mode region. The presence detector may also detect a human presence. An enclosed furnishing detector detects when the furnishing item is in a closed state. A power output may be adjusted in response to the closed state, the presence of a receiver device, and the presence of a human. | 08-12-2010 |
| 20100201312 | WIRELESS POWER TRANSFER FOR PORTABLE ENCLOSURES - Exemplary embodiments are directed to portable wireless charging. A portable charging system may comprise at least one antenna positioned within a portable enclosure. The at least one antenna may be configured to receive power from a power source and wirelessly transmit power to a receive antenna coupled to a chargeable device positioned within a near-field of the at least one antenna. | 08-12-2010 |
| 20100217553 | IMPEDANCE CHANGE DETECTION IN WIRELESS POWER TRANSMISSION - Exemplary embodiments are directed to wireless power transfer. Energy from a transmit antenna is coupled to internal signals on a transmitter. An impedance measurement circuit generates an impedance indication signal for indicating an impedance difference between the coupled internal signals by comparing them. A controller samples the impedance indication signal and determines digital signaling values responsive to changes in the impedance indication signal. The impedance measurement circuit measures one or more of magnitude difference of the internal signals, phase difference of the internal signals, and changes in power consumed by an amplifier coupled between the RF signal and the transmit antenna. A transmitter generates the electromagnetic field with a transmit antenna responsive to a Radio Frequency (RF) signal to create a coupling-mode region within a near field of the transmit antenna. | 08-26-2010 |
| Patent application number | Description | Published |
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| 20090284245 | WIRELESS POWER TRANSFER FOR APPLIANCES AND EQUIPMENTS - Exemplary embodiments are directed to wireless power transfer. A transmitting device or a receiving device for use in a wireless transfer system may be equipment or a household appliance. The transmitting device includes a transmit antenna to wirelessly transfer power to a receive antenna by generating a near field radiation within a coupling-mode region. An amplifier applies an RF signal to the transmit antenna. A presence detector detects a presence of a receiver device within the coupling-mode region. A controller adjusts a power output of the amplifier responsive to the presence of a receiver device. The presence detector may also detect a human presence. The power output may be adjusted at or below the regulatory level when the presence signal indicates human presence and above a regulatory level when the presence signal indicates human absence. | 11-19-2009 |
| 20090284369 | TRANSMIT POWER CONTROL FOR A WIRELESS CHARGING SYSTEM - Exemplary embodiments are directed to wireless power transfer including generating an electromagnetic field at a resonant frequency of a transmit antenna to create a coupling-mode region within a near field of the transmit antenna. A receive antenna placed within the coupling-mode region resonates at or near the resonant frequency. The receive antenna extracts energy from a coupling between the two antennas. A load sensing circuit coupled to an amplifier driving the transmit antenna can detect a change in power consumed by the amplifier in response to the energy extracted by the receive antenna. The transmit antenna adjusts to a high-power charging mode when one or more receivers are present in the coupling-mode region and adjusts to a low-power beacon mode when there are no receivers in the coupling-mode region. | 11-19-2009 |
| 20090286475 | SIGNALING CHARGING IN WIRELESS POWER ENVIRONMENT - Exemplary embodiments are directed to wireless power transfer including generating an electromagnetic field at a resonant frequency of a transmitter to create a coupling-mode region within a near field of the transmitter during a synchronization portion of a time-multiplexed recurring period. During a power transmission portion of the recurring period, the electromagnetic field will continue to be generated when there is a receiver within the coupling-mode region, or the electromagnetic field will be disabled when there are no receivers within the coupling-mode region. Different segments of the power transmission portion are allocated to different receivers. The transmitter issues serial commands to the receivers by on/off keying the electromagnetic field. The receivers issue serial replies by changing the amount of power consumed from the electromagnetic field between two different states. The serial commands and serial replies are used to determine the number of receivers, their power requirements, and the allocation of segments. | 11-19-2009 |
| 20090286476 | REVERSE LINK SIGNALING VIA RECEIVE ANTENNA IMPEDANCE MODULATION - Exemplary embodiments are directed to wireless power transfer including generating an electromagnetic field at a resonant frequency of a transmit antenna to create a coupling-mode region within a near-field of the transmit antenna. A receive antenna placed within the coupling-mode region resonates at or near the resonant frequency. The receive antenna extracts energy from a coupling between the two antennas. Signaling from the receive antenna to the transmit antenna is performed by generating a first power consumption state for the receive antenna to signal a first receive signal state and generating a second power consumption state for the receive antenna to signal a second receive signal state. Signaling from the transmit antenna to the receive antenna is performed by enabling the resonant frequency on the transmit antenna to signal a first transmit signal state and disabling the resonant frequency on the transmit antenna to signal a second transmit signal state. | 11-19-2009 |
| 20100277003 | ADAPTIVE IMPEDANCE TUNING IN WIRELESS POWER TRANSMISSION - Exemplary embodiments are directed to wireless power. A wireless power receiver includes a receive antenna for coupling with near field radiation in a coupling-mode region generated by a transmit antenna operating at a resonant frequency. The receive antenna generates an RF signal when coupled to the near filed radiation and a rectifier converts the RF signal to a DC input signal. A direct current (DC)-to-DC converter coupled to the DC input signal generates a DC output signal. A pulse modulator generate a pulse-width modulation signal to the DC-to-DC converter to adjust a DC impedance of the wireless power receiver by modifying a duty cycle of the pulse-width modulation signal responsive to at least one of a voltage of the DC input signal, a current of the DC input signal, a voltage of the DC output signal, and a current of the DC output signal. | 11-04-2010 |
| 20100323616 | DEVICES FOR CONVEYING WIRELESS POWER AND METHODS OF OPERATION THEREOF - Exemplary embodiments are directed to wireless power. A method may comprise receiving wireless power with a receiver and charging an accumulator with energy from the received wireless power. The method may further include conveying energy from the accumulator to an energy storage device upon a charging level of the accumulator reaching a threshold level. | 12-23-2010 |
| 20110124305 | FORWARD LINK SIGNALING WITHIN A WIRELESS POWER SYSTEM - Exemplary embodiments are directed to forward link signaling. A method may include modulating an input bias signal of a power amplifier according to data to be transmitted on a wireless power transmit signal. The method may further include modulating an amplitude of the wireless power transmit signal generated by the power amplifier in response to the modulated input bias signal. | 05-26-2011 |
