Patents by Inventor Kevin D. Lee
Kevin D. Lee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9899882Abstract: Exemplary embodiments are directed to wireless power communication. In one aspect a wireless power receiver configured to receive wireless power from a wireless power transmitter is provided. The wireless power receiver includes a switchable element configured to couple a receive coil to a ground voltage. The wireless power receiver further includes a detector coupled to the receive coil and configured to detect an externally generated pulse.Type: GrantFiled: October 13, 2011Date of Patent: February 20, 2018Assignee: QUALCOMM IncorporatedInventors: Kevin D. Lee, Zhen Ning Low, Linda S. Irish
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Patent number: 9853478Abstract: Exemplary embodiments are directed to detection and validation of wirelessly chargeable devices positioned within a charging region of a wireless power transmitter. A device may include a wireless power transmitter configured detect a change in at least one parameter at the transmitter. The transmitter may further be configured to determine whether at least one valid chargeable device is positioned within a charging region of the transmitter upon detecting the change in the at least one parameter.Type: GrantFiled: February 17, 2011Date of Patent: December 26, 2017Assignee: QUALCOMM IncorporatedInventors: Kevin D Lee, Zhen Ning Low, Francesco Carobolante
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Patent number: 9219378Abstract: Exemplary embodiments are directed to wireless power charging. A device may include at least one sensing element for measuring at least one parameter within a receiver configured to receive wirelessly transmitted power. The device may include a switching element configured to enable the receiver to convey energy to a load when the at least one parameter exceeds a threshold value.Type: GrantFiled: March 14, 2011Date of Patent: December 22, 2015Assignee: QUALCOMM IncorporatedInventors: Adam A. Mudrick, Kevin D. Lee, Zhen Ning Low
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Patent number: 9136914Abstract: 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.Type: GrantFiled: December 17, 2009Date of Patent: September 15, 2015Assignee: Qualcomm IncorporatedInventors: William H Von Novak, Stanley S Toncich, Roberto Rimini, Kevin D Lee
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Patent number: 8620883Abstract: Apparatus and methods are operable to receive a first and second version of an ordered list having a first and second plurality of ordered entries, wherein each of the plurality of ordered entries has a corresponding order index. Further, the apparatus and methods are operable to compare respective ordered entries from the first and second versions of the ordered list at a respective order index. Also, the apparatus and methods are operable to assign a penalty to each possible current list resulting from reconciling the first version and the second version of the ordered list when the comparing identifies a difference between respective ordered entries at the respective order index. Moreover, the apparatus and methods are operable to generate, based on the comparing, at least a portion of all possible current lists, and select and store one of the possible current lists as the current list based on the penalties.Type: GrantFiled: March 2, 2009Date of Patent: December 31, 2013Assignee: QUALCOMM, IncorporatedInventors: Ryan S. Madsen, Kevin D. Lee
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Patent number: 8559873Abstract: 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.Type: GrantFiled: October 29, 2010Date of Patent: October 15, 2013Assignee: QUALCOMM IncorporatedInventors: William H Von Novak, Stanley Slavko Toncich, Cheng F Tan, Kevin D Lee, Linda S Irish
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Publication number: 20120153742Abstract: Exemplary embodiments are directed to wireless power communication. In one aspect a wireless power receiver configured to receive wireless power from a wireless power transmitter is provided. The wireless power receiver includes a switchable element configured to couple a receive coil to a ground voltage. The wireless power receiver further includes a detector coupled to the receive coil and configured to detect an externally generated pulse.Type: ApplicationFiled: October 13, 2011Publication date: June 21, 2012Applicant: Qualcomm IncorporatedInventors: Kevin D. Lee, Zhen Ning Low, Linda S. Irish
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Publication number: 20120104867Abstract: Exemplary embodiments are directed to wireless power charging. A device may include at least one sensing element for measuring at least one parameter within a receiver configured to receive wirelessly transmitted power. The device may include a switching element configured to enable the receiver to convey energy to a load when the at least one parameter exceeds a threshold value.Type: ApplicationFiled: March 14, 2011Publication date: May 3, 2012Applicant: QUALCOMM INCORPORATEDInventors: Adam A. Mudrick, Kevin D. Lee, Zhen Ning Low
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Publication number: 20120025624Abstract: Exemplary embodiments are directed to detection and validation of wirelessly chargeable devices positioned within a charging region of a wireless power transmitter. A device may include a wireless power transmitter configured detect a change in at least one parameter at the transmitter. The transmitter may further be configured to determine whether at least one valid chargeable device is positioned within a charging region of the transmitter upon detecting the change in the at least one parameter.Type: ApplicationFiled: February 17, 2011Publication date: February 2, 2012Applicant: QUALCOMM INCORPORATEDInventors: Kevin D. Lee, Zhen Ning Low, Francesco Carobolante
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Publication number: 20110124305Abstract: 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.Type: ApplicationFiled: October 29, 2010Publication date: May 26, 2011Applicant: QUALCOMM INCORPORATEDInventors: William H. Von Novak, Stanley Slavko Toncich, Cheng F. Tan, Kevin D. Lee, Linda S. Irish
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Publication number: 20100223239Abstract: Apparatus and methods are operable to receive a first and second version of an ordered list having a first and second plurality of ordered entries, wherein each of the plurality of ordered entries has a corresponding order index. Further, the apparatus and methods are operable to compare respective ordered entries from the first and second versions of the ordered list at a respective order index. Also, the apparatus and methods are operable to assign a penalty to each possible current list resulting from reconciling the first version and the second version of the ordered list when the comparing identifies a difference between respective ordered entries at the respective order index. Moreover, the apparatus and methods are operable to generate, based on the comparing, at least a portion of all possible current lists, and select and store one of the possible current lists as the current list based on the penalties.Type: ApplicationFiled: March 2, 2009Publication date: September 2, 2010Applicant: QUALCOMM IncorporatedInventors: Ryan S. Madsen, Kevin D. Lee
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Publication number: 20100217553Abstract: 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.Type: ApplicationFiled: December 17, 2009Publication date: August 26, 2010Applicant: QUALCOMM INCORPORATEDInventors: William Von Novak, Stanley S. Toncich, Roberto Rimini, Kevin D. Lee