Patents by Inventor Ryan Tseng

Ryan Tseng 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).

  • Publication number: 20190343022
    Abstract: An information handling system may include a processor, a memory communicatively coupled to the processor, first and second information handling resources, an air mover configured to provide airflow to the first and second information handling resources, a baffle configured to apportion the airflow between the first and second information handling resources, and a first structural element coupled to the baffle. The first structural element may be proximate to the first information handling resource and may include a shape-memory alloy (SMA). In response to an increase in temperature associated with the first information handling resource, the SMA may be operable to change a physical dimension of the first structural element such that the baffle is moved from a first orientation to a second orientation, the second orientation corresponding to a higher airflow to the first information handling resource.
    Type: Application
    Filed: May 4, 2018
    Publication date: November 7, 2019
    Applicant: Dell Products L.P.
    Inventors: Ryan TSENG, Heng-Li CHOU, Scott JY LIN
  • Patent number: 10128688
    Abstract: This disclosure provides systems, methods, and apparatus for the limiting of voltage in wireless power receivers. In one aspect, an apparatus includes a power transfer component configured to receive power wirelessly from a transmitter. The apparatus further includes a circuit coupled to the power transfer component and configured to reduce a received voltage when activated. The apparatus further includes a controller configured to activate the circuit when the received voltage reaches a first threshold value and configured to deactivate the circuit when the received voltage reaches a second threshold value. The apparatus further includes an antenna configured to generate a signal to the transmitter that signals to the transmitter that the received voltage reached the first threshold value.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: November 13, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: William H. Von Novak, III, Joseph L. Archambault, Adam Jason Wood, Edward Kenneth Kallal, Ryan Tseng, Gabriel Isaac Mayo
  • Patent number: 9929601
    Abstract: An apparatus and method for lost power detection are described. In one implementation, an apparatus for wirelessly transferring power comprises a wireless power transmitter configured to wirelessly transmit power at a first power level sufficient to power or charge a chargeable device. The apparatus further comprises a controller configured to obtain a first power measurement of the first power level. The controller is further configured to determine a first adjusted power measurement of the first power measurement based on one or more tolerance values of the wireless power transmitter. The controller is further configured to determine a second adjusted power measurement of a second power measurement of a second power level received by the chargeable device based on one or more tolerance values of the chargeable device. The controller is further configured to determine if a power difference between the first and second adjusted power measurements exceeds a threshold value.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: March 27, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Mark D. White, II, Edward Kenneth Kallal, Ryan Tseng
  • Patent number: 9912173
    Abstract: Embodiments of the invention relate to a method and system for transferring power wirelessly to electronic devices. The system can utilize magnetic coupling between two coils at close proximity to transfer sufficient power to charge an electronic device. Embodiments of the invention pertain to an array of spiral coils that can be used to transmit power for transfer to receiver coils. Potential applications of this technology include charging consumer electronic devices (cell phones, laptops, PDAs, etc), developing hermetically sealed devices for extreme environments, and less invasive transcutaneous energy transfer (TET) systems. Various embodiments of the subject system can be referred to as PowerPad system. Embodiments can incorporate one or more of the following: planar inductors, PCB transformers, and very high frequency power supplies.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: March 6, 2018
    Assignee: QUALCOMM Incorporated
    Inventor: Ryan Tseng
  • Patent number: 9812875
    Abstract: A uniform magnetic field may provide better performance in wireless power transmitters due to smaller impedance variations in an output of a power amplifier of a wireless power transmitter and also allow for wireless power transmitter pads to be thinner. One aspect of the disclosure provides a device for wireless power transfer. The device comprises a substantially planar transmit antenna that is configured to generate a magnetic field. The device also comprises a pad having a charging surface. At least a portion of the transmit antenna is disposed in the pad. The device also comprises a ferromagnetic material having a shape and a position relative to the transmit antenna. At least one of the shape or position of the ferromagnetic material, or a combination thereof, is selected to modify a distribution of the magnetic field at the charging surface.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: November 7, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Saeed Nejatali, Francesco Carobolante, Ryan Tseng, Mei-Li Chi, Seong Heon Jeong
  • Patent number: 9793717
    Abstract: An apparatus and method for lost power detection are described. In one implementation, an apparatus for wireless transferring power comprises a wireless power transmitter configured to wirelessly transmit power at a power level sufficient to power or charge a chargeable device. The apparatus further comprises a controller configured to determine a first and second power difference between a first and second power measurement and the second and a third power measurement of the power level provided by the wireless power transmitter at a first, second, and third sample time, respectively. The controller is further configured to determine a transmitter power difference between the first power difference and the second power difference. The controller is further configured to determine an absence or a presence of an object that affects consumption of power transmitted by the wireless power transmitter based at least on the transmitter power difference ?_T.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: October 17, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Mark D. White, II, Edward Kenneth Kallal, Ryan Tseng, Joseph N. Maalouf
  • Publication number: 20170126066
    Abstract: This disclosure provides systems, methods, and apparatus for the limiting of voltage in wireless power receivers. In one aspect, an apparatus includes a power transfer component configured to receive power wirelessly from a transmitter. The apparatus further includes a circuit coupled to the power transfer component and configured to reduce a received voltage when activated. The apparatus further includes a controller configured to activate the circuit when the received voltage reaches a first threshold value and configured to deactivate the circuit when the received voltage reaches a second threshold value. The apparatus further includes an antenna configured to generate a signal to the transmitter that signals to the transmitter that the received voltage reached the first threshold value.
    Type: Application
    Filed: September 9, 2016
    Publication date: May 4, 2017
    Inventors: William H. Von Novak, III, Joseph L. Archambault, Adam Jason Wood, Edward Kenneth Kallal, Ryan Tseng, Gabriel Isaac Mayo
  • Patent number: 9614376
    Abstract: Systems, methods and apparatus are disclosed for detecting power losses due to induction heating in wireless power receivers. In one aspect, an apparatus for wireless power transfer comprises a power transfer component configured to transmit wireless power to a wireless power receiver at a power level sufficient to charge or power a load. The apparatus further comprises a communications receiver configured to receive a message from the wireless power receiver, the message comprising a group identifier. The apparatus further comprises a controller circuit operationally coupled to the power transfer component and the communications receiver and configured to determine a power loss value based on the group identifier, the power loss value indicative of power loss due to induction heating presented by one or more wireless power receivers that are members of a group associated with the group identifier.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: April 4, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Edward Kenneth Kallal, Mark White, II, Ryan Tseng
  • Publication number: 20170021497
    Abstract: One or more robots that make exploration and path planning decisions in a previously unknown or unmapped environment based on a map and localization data at least partially generated by human transported perception unit(s). One or more robots that make exploration and path planning decisions in a previously unknown or unmapped environment based on current and past position and velocity information of at least one human. Exploration and navigation recommendations presented to a human based on map and localization information at least partially generated by other humans or robots. A system of humans and robots that generates a map of an environment based data provided from at least one human transported sensor, and at least one robot transported sensor.
    Type: Application
    Filed: July 18, 2016
    Publication date: January 26, 2017
    Inventors: Brandon Tseng, Ryan Tseng, Andrew Reiter
  • Patent number: 9508487
    Abstract: This disclosure provides systems, methods, and apparatus for the limiting of voltage in wireless power receivers. In one aspect, an apparatus includes a power transfer component configured to receive power wirelessly from a transmitter. The apparatus further includes a circuit coupled to the power transfer component and configured to reduce a received voltage when activated. The apparatus further includes a controller configured to activate the circuit when the received voltage reaches a first threshold value and configured to deactivate the circuit when the received voltage reaches a second threshold value. The apparatus further includes an antenna configured to generate a signal to the transmitter that signals to the transmitter that the received voltage reached the first threshold value.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: November 29, 2016
    Assignee: Qualcomm Incorporated
    Inventors: William H. Von Novak, Joseph L. Archambault, Adam J. Wood, Edward Kallal, Ryan Tseng, Gabriel Isaac Mayo
  • Patent number: 9461481
    Abstract: Systems and methods for feedback control of output power in a wireless power transmitter are disclosed. According to one aspect, one of a voltage level at an input of a wireless power transmit coil and a level of current passing through the wireless power transmit coil are sensed. The wireless power transmitter includes a controller configured to adjust an electrical characteristic of the wireless power transmitter to maintain at least one of the level of current and the voltage level at a constant level.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: October 4, 2016
    Assignee: QUALCOMM Incorporated
    Inventor: Ryan Tseng
  • Patent number: 9391442
    Abstract: Aspects of a protection circuit and method are disclosed. A transmit circuit generates a power transmit signal for powering the transmit antenna to generate a wireless field sufficient for wirelessly charging a device. A detection circuit senses a strength of an electromagnetic field received by the transmit antenna and further configured to generate an sense signal indicating the strength of the electromagnetic field received by the transmit antenna. A power control circuit controls a switch based at least partly on the sense signal. The power control circuit can attenuate an electrical coupling between the transmit antenna and the transmit circuit such that the received electromagnetic field is inhibited from damaging the transmit antenna or the transmit circuit.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 12, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Ryan Tseng, Sreenivas Kasturi, Edward Kenneth Kallal, III, Milorad Radovic, William H. Von Novak, III
  • Patent number: 9369183
    Abstract: A wireless power transmitter may generate a magnetic field via a transmit antenna to induce voltage in a receive antenna of a wireless power receiver to power the unit and/or charge the receiver's battery. An apparatus for measuring wireless power transfer at an operating frequency between the transmitter and the receiver is provided. The apparatus comprises a first clock configured to generate a first clock signal at a first clock frequency that is higher than the operating frequency of the wireless power transfer. The apparatus further comprises a controller configured to operate based on a second clock signal, the first clock frequency higher than a second clock frequency of the second clock signal. The controller is further configured to measure an amount of wireless power transfer based on the first clock signal.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: June 14, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Abdolhossein Nejatali, Francesco Carobolante, Ryan Tseng
  • Patent number: 9350303
    Abstract: Exemplary embodiments are directed to differentially driving a load. An apparatus includes a differential drive amplifier including a switching device coupled with a first output node and a second output node. The first output node and the second output node drive a load network including primary coils. The differential drive amplifier also includes a drive circuit configured to drive the switching device. The drive circuit may be configured to provide a drive signal to the switching device to alter a conductive state of the switching device to produce a first output signal at the first output node and a second output signal at the second output node. The first and second output signals may be substantially equal in magnitude but opposite in polarity relative to a reference voltage.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: May 24, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Gabriel I. Mayo, Ryan Tseng
  • Publication number: 20160072296
    Abstract: A uniform magnetic field may provide better performance in wireless power transmitters due to smaller impedance variations in an output of a power amplifier of a wireless power transmitter and also allow for wireless power transmitter pads to be thinner. One aspect of the disclosure provides a device for wireless power transfer. The device comprises a substantially planar transmit antenna that is configured to generate a magnetic field. The device also comprises a pad having a charging surface. At least a portion of the transmit antenna is disposed in the pad. The device also comprises a ferromagnetic material having a shape and a position relative to the transmit antenna. At least one of the shape or position of the ferromagnetic material, or a combination thereof, is selected to modify a distribution of the magnetic field at the charging surface.
    Type: Application
    Filed: September 5, 2014
    Publication date: March 10, 2016
    Inventors: Saeed Nejatali, Francesco Carobolante, Ryan Tseng, Mei-Li Chi, Seong Heon Jeong
  • Publication number: 20160064950
    Abstract: Embodiments of the invention relate to a method and system for transferring power wirelessly to electronic devices. The system can utilize magnetic coupling between two coils at close proximity to transfer sufficient power to charge an electronic device. Embodiments of the invention pertain to an array of spiral coils that can be used to transmit power for transfer to receiver coils. Potential applications of this technology include charging consumer electronic devices (cell phones, laptops, PDAs, etc), developing hermetically sealed devices for extreme environments, and less invasive transcutaneous energy transfer (TET) systems. Various embodiments of the subject system can be referred to as PowerPad system. Embodiments can incorporate one or more of the following: planar inductors, PCB transformers, and very high frequency power supplies.
    Type: Application
    Filed: September 4, 2015
    Publication date: March 3, 2016
    Inventor: Ryan Tseng
  • Publication number: 20150357832
    Abstract: Systems and methods for feedback control of output power in a wireless power transmitter are disclosed. According to one aspect, one of a voltage level at an input of a wireless power transmit coil and a level of current passing through the wireless power transmit coil are sensed. The wireless power transmitter includes a controller configured to adjust an electrical characteristic of the wireless power transmitter to maintain at least one of the level of current and the voltage level at a constant level.
    Type: Application
    Filed: August 18, 2015
    Publication date: December 10, 2015
    Inventor: Ryan Tseng
  • Patent number: 9196418
    Abstract: Systems, methods, and apparatus for amplifying a voltage in wireless power transmitters are disclosed. In one aspect, the transmitter comprises a first circuit configured to generate a first signal. The first signal comprises a non-inverted output. The transmitter further comprises a second circuit configured to generate a second signal in phase with the first signal. The second signal comprises an inverted output with respect to the non-inverted output. The first circuit and the second circuit are further configured to drive a load.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: November 24, 2015
    Assignee: QUALCOMM Incorporated
    Inventor: Ryan Tseng
  • Publication number: 20150333797
    Abstract: A wireless power transmitter may generate a magnetic field via a transmit antenna to induce voltage in a receive antenna of a wireless power receiver to power the unit and/or charge the receiver's battery. An apparatus for measuring wireless power transfer at an operating frequency between the transmitter and the receiver is provided. The apparatus comprises a first clock configured to generate a first clock signal at a first clock frequency that is higher than the operating frequency of the wireless power transfer. The apparatus further comprises a controller configured to operate based on a second clock signal, the first clock frequency higher than a second clock frequency of the second clock signal. The controller is further configured to measure an amount of wireless power transfer based on the first clock signal.
    Type: Application
    Filed: May 15, 2014
    Publication date: November 19, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Abdolhossein Nejatali, Francesco Carobolante, Ryan Tseng
  • Patent number: 9190876
    Abstract: This disclosure provides systems, methods and apparatus for detecting wireless charging transmit characteristics. One aspect of the disclosure provides a method of detecting a transmit characteristic in a wireless power transmission device. The device includes a series element electrically coupled to a transmit coil. The method includes determining real and imaginary components of a first voltage at a first terminal of the series element. The method further includes determining real and imaginary components of a second voltage at a second terminal of the series element. The method further includes determining real and imaginary components of a current through the series element, based on the determined first and second voltages. The method further includes determining transmit characteristics such as nodal voltages, currents, power and impedances based on determined voltages and currents.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: November 17, 2015
    Assignee: QUALCOMM INCORPORATED
    Inventors: Gabriel Isaac Mayo, Ryan Tseng, Edward Kenneth Kallal