Patents by Inventor William Plumb

William Plumb 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: 20210242724
    Abstract: An apparatus and method for performing foreign object detection for a wireless power transmitter. A matching network and transmit coil are energized, and a resonance is excited. The resonance is allowed to decay. A temporal characteristic of the decay is measured. The temporal characteristic is analyzed to determine whether a foreign object is coupled to an electromagnetic field generated by the transmit coil.
    Type: Application
    Filed: January 6, 2021
    Publication date: August 5, 2021
    Applicant: MediaTek Inc.
    Inventors: Vladimir Alexander Muratov, Patrick Stanley Riehl, William Plumb
  • Publication number: 20210057939
    Abstract: Methods, apparatus and computer-readable storage media for performing foreign object detection (FOD) in a wireless power transfer system. A plurality of FOD measurements may be performed and processed to perform FOD.
    Type: Application
    Filed: November 9, 2020
    Publication date: February 25, 2021
    Applicant: MediaTek Inc.
    Inventors: Vladimir A. Muratov, William Plumb
  • Patent number: 10916972
    Abstract: An apparatus and method for performing foreign object detection for a wireless power transmitter. A matching network and transmit coil are energized, and a resonance is excited. The resonance is allowed to decay. A temporal characteristic of the decay is measured. The temporal characteristic is analyzed to determine whether a foreign object is coupled to an electromagnetic field generated by the transmit coil.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: February 9, 2021
    Assignee: MediaTek Inc.
    Inventors: Vladimir A. Muratov, Patrick Stanley Riehl, William Plumb
  • Patent number: 10868446
    Abstract: Methods, apparatus and computer-readable storage media for performing foreign object detection (FOD) in a wireless power transfer system. A plurality of FOD measurements may be performed and processed to perform FOD.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: December 15, 2020
    Assignee: MediaTek Inc.
    Inventors: Vladimir A. Muratov, William Plumb
  • Patent number: 10529359
    Abstract: Various embodiments relating to detecting a conversation during presentation of content on a computing device, and taking one or more actions in response to detecting the conversation, are disclosed. In one example, an audio data stream is received from one or more sensors, a conversation between a first user and a second user is detected based on the audio data stream, and presentation of a digital content item is modified by the computing device in response to detecting the conversation.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: January 7, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Arthur Charles Tomlin, Jonathan Paulovich, Evan Michael Keibler, Jason Scott, Cameron Brown, Jonathan William Plumb
  • Patent number: 10411831
    Abstract: A wireless charging in-band communication system includes a channel encoding for message error correction and detection. A modulation module performs biphase modulation for DC balanced signals and impedance switching to change reflected impedance seen by the source. A synchronization module prepends the message with a synchronization sequence having Golay complementary codes. A receiver module receives the message from the transmitter module. A preamble detection block has a Golay complementary code correlator used for message detection, synchronization, and equalization coefficient estimation and selection. A decoding module that performs biphase demodulation with error correction with a DC offset being estimated as the average value of the signal over the length of the message before channel decoding. The decoding module performs equalization, error correction and detection channel decoding.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: September 10, 2019
    Assignee: MEDIATEK Singapore Pte. Ltd.
    Inventors: William Plumb, Zhen Wang, Zoran Zvonar, Patrick Stanley Riehl, Anand Satyamoorthy, Philip Frank Tustin
  • Publication number: 20190199142
    Abstract: An apparatus and method for performing foreign object detection for a wireless power transmitter. A matching network and transmit coil are energized, and a resonance is excited. The resonance is allowed to decay. A temporal characteristic of the decay is measured. The temporal characteristic is analyzed to determine whether a foreign object is coupled to an electromagnetic field generated by the transmit coil.
    Type: Application
    Filed: December 20, 2018
    Publication date: June 27, 2019
    Applicant: MediaTek Inc.
    Inventors: Vladimir A. Muratov, Patrick Stanley Riehl, William Plumb
  • Patent number: 10257723
    Abstract: A method of reporting UE measurement state information in RLF report is provided. A UE performs radio measurements of a serving cell and neighbor cells in a mobile communication network. The UE evaluates a measurement reporting criteria and attempts to access the network to deliver a measurement report if the criteria is met. The UE then detects a radio link failure or a handover failure event and reconnects to the network by performing RRC reestablishment or RRC establishment. Finally, the UE transmits a failure event report to the network. The failure event report comprises UE measurement state information corresponds to the failure event. The UE measurement state information helps the network to determine whether to apply corrective actions to mitigate the failure.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: April 9, 2019
    Assignee: HFI Innovation INC.
    Inventors: Per Johan Mikael Johansson, Shiang-Jiun Lin, Yih-Shen Chen, William Plumb
  • Publication number: 20190049544
    Abstract: Circuits for controlling magnetic-based tracking systems are described. These systems may be used in virtual reality applications, for example to track in real-time the location of one or more body parts. The systems use a beacon emitting mutually orthogonal magnetic fields. On the receiver side, one or more sensors disposed on different parts of a body receive the magnetic fields. The beacon includes switching amplifiers for driving the magnetic field emitters. Being binary, these amplifiers may be controlled by binary signals. The circuits may exhibit a resonant frequency response, and may be operated off-resonance, thus providing for a better control of the magnetic fields amplitude. As a result, however, fluctuations in the envelop of the magnetic fields due to the presence of a beating tone may arise. These fluctuations may be shortened by gradually activating the drivers for the magnetic field emitters.
    Type: Application
    Filed: July 3, 2018
    Publication date: February 14, 2019
    Applicant: MEDIATEK Singapore Pte. Ltd.
    Inventors: Vladimir A. Muratov, Da-shan Shiu, William Plumb, Philip Frank Tustin
  • Patent number: 10199881
    Abstract: An apparatus and method for performing foreign object detection for a wireless power transmitter. A matching network and transmit coil are energized, and a resonance is excited. The resonance is allowed to decay. A temporal characteristic of the decay is measured. The temporal characteristic is analyzed to determine whether a foreign object is coupled to an electromagnetic field generated by the transmit coil.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: February 5, 2019
    Assignee: MediaTek Inc.
    Inventors: Vladimir A. Muratov, Patrick Stanley Riehl, William Plumb
  • Patent number: 10193375
    Abstract: Methods and apparatus for providing closed loop current control in a wireless power transmitter. The method comprises adjusting a transmitter coil current generated by the wireless power transmitter based, at least in part, on first feedback reported by at least one wireless power receiver and second feedback based on a measurement of the transmitter coil current.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: January 29, 2019
    Assignee: MediaTek Inc.
    Inventors: Philip Frank Tustin, William Plumb, Patrick Stanley Riehl
  • Publication number: 20180241257
    Abstract: Methods, apparatus and computer-readable storage media for performing foreign object detection (FOD) in a wireless power transfer system. A plurality of FOD measurements may be performed and processed to perform FOD.
    Type: Application
    Filed: April 19, 2018
    Publication date: August 23, 2018
    Applicant: MediaTek Inc.
    Inventors: Vladimir A. Muratov, William Plumb
  • Patent number: 9837848
    Abstract: A wireless charging system is provided that includes a charger portion that receives one or more portable elements for charging wirelessly. The charger portion controls the amount of power needed to charge the one or more portable elements. An inband communication module receives inband communications with the one or more portable elements using a random access mode. The charger portion utilizes the inband communications to determine how much power is needed, via energy based reporting, to charge the one or more portable elements that avoids conveying identification information.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: December 5, 2017
    Assignee: MEDIATEK Singapore Pte. Ltd.
    Inventors: Timothy Perrin Fisher-Jeffes, William Plumb, Patrick Stanley Riehl, Anand Satyamoorthy
  • Patent number: 9807659
    Abstract: A method of implicit signaling to support In-Device coexistence interference avoidance is provided. A UE sends an IDC interference indication to an eNB. The indication indicates that a serving frequency becomes unusable due to a coexistence interference problem. The indication does not explicitly indicate a frequency index or a frequency location of the unusable serving frequency. The eNB determines the serving frequency as unusable in an implicit manner. The eNB also determines an implied unusable frequency region based on the received IDC indication. The implied unusable frequency region is between the serving frequency and the ISM band. In one advantageous aspect, the eNB configures a condition for the UE, such that the UE is refrained from sending IDC interference indications unless the condition is satisfied.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: October 31, 2017
    Assignee: MEDIATEK INC.
    Inventors: I-Kang Fu, Yih-Shen Chen, William Plumb, Per Johan Mikael Johansson
  • Publication number: 20170303148
    Abstract: A method of reporting UE measurement state information in RLF report is provided. A UE performs radio measurements of a serving cell and neighbor cells in a mobile communication network. The UE evaluates a measurement reporting criteria and attempts to access the network to deliver a measurement report if the criteria is met. The UE then detects a radio link failure or a handover failure event and reconnects to the network by performing RRC reestablishment or RRC establishment. Finally, the UE transmits a failure event report to the network. The failure event report comprises UE measurement state information corresponds to the failure event. The UE measurement state information helps the network to determine whether to apply corrective actions to mitigate the failure.
    Type: Application
    Filed: June 30, 2017
    Publication date: October 19, 2017
    Inventors: Per Johan Mikael Johansson, Shiang-Jiun Lin, Yih-Shen Chen, William Plumb
  • Publication number: 20170230878
    Abstract: A method of inter-RAT failure event report is proposed. A UE detects a failure event in a first cell served by a first base station, and the first cell belongs to a first RAT. The failure event may include a radio link failure or a handover failure. The UE then performs an RRC establishment procedure with a second cell served by a second base station, and the second cell belongs to a second RAT. After the RRC establishment, the UE transmits a failure event report to the wireless network. The failure event can be a radio link failure, or be associated with a mobility command such as a handover command. By providing more reliable information in the failure event report than a network solution could provide, inter-RAT mobility performance can be improved.
    Type: Application
    Filed: April 10, 2017
    Publication date: August 10, 2017
    Inventors: Per Johan Mikael Johansson, Shiang-Jiun Lin, Yih-Shen Chen, William Plumb
  • Patent number: 9730090
    Abstract: A method of reporting UE measurement state information in RLF report is provided. A UE performs radio measurements of a serving cell and neighbor cells in a mobile communication network. The UE evaluates a measurement reporting criteria and attempts to access the network to deliver a measurement report if the criteria is met. The UE then detects a radio link failure or a handover failure event and reconnects to the network by performing RRC reestablishment or RRC establishment. Finally, the UE transmits a failure event report to the network. The failure event report comprises UE measurement state information corresponds to the failure event. The UE measurement state information helps the network to determine whether to apply corrective actions to mitigate the failure.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: August 8, 2017
    Assignee: MEDIATEK, INC.
    Inventors: Per Johan Mikael Johansson, Shiang-Jiun Lin, Yih-Shen Chen, William Plumb
  • Publication number: 20170222469
    Abstract: Methods and apparatus for providing closed loop current control in a wireless power transmitter. The method comprises adjusting a transmitter coil current generated by the wireless power transmitter based, at least in part, on first feedback reported by at least one wireless power receiver and second feedback based on a measurement of the transmitter coil current.
    Type: Application
    Filed: November 8, 2016
    Publication date: August 3, 2017
    Applicant: MediaTek Inc.
    Inventors: Philip Frank Tustin, William Plumb, Patrick Stanley Riehl
  • Patent number: 9705566
    Abstract: A variable gain circuit used in an in-band communication system is provided that includes a current sense pickup that is coupled to the output of a DC power source that senses current from the DC power source and provides a first output signal. A variable controlled amplifier structure, that is coupled to the DC power source, receives the first output signal and provides a specified amount of gain to the first output signal so as to produce a second output signal. A digital signal is produced using the second output having a selected frequency bandwidth.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: July 11, 2017
    Assignee: MEDIATEK Singapore Pte. Ltd.
    Inventors: William Plumb, Anand Satyamoorthy, Patrick Stanley Riehl
  • Patent number: 9661510
    Abstract: A method of inter-RAT failure event report is proposed. A UE detects a failure event in a first cell served by a first base station, and the first cell belongs to a first RAT. The failure event may include a radio link failure or a handover failure. The UE then performs an RRC establishment procedure with a second cell served by a second base station, and the second cell belongs to a second RAT. After the RRC establishment, the UE transmits a failure event report to the wireless network. The failure event can be a radio link failure, or be associated with a mobility command such as a handover command. By providing more reliable information in the failure event report than a network solution could provide, inter-RAT mobility performance can be improved.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: May 23, 2017
    Assignee: MEDIATEK INC.
    Inventors: Per Johan Mikael Johansson, Shiang-Jiun Lin, Yih-Shen Chen, William Plumb