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).
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Patent number: 11726585Abstract: 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: GrantFiled: September 13, 2021Date of Patent: August 15, 2023Assignee: MEDIATEK Singapore Pte. Ltd.Inventors: Vladimir Alexander Muratov, Da-Shan Shiu, William Plumb, Philip Frank Tustin
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Patent number: 11527921Abstract: 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: GrantFiled: November 9, 2020Date of Patent: December 13, 2022Assignee: MediaTek Inc.Inventors: Vladimir A. Muratov, William Plumb
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Patent number: 11476721Abstract: 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: GrantFiled: January 6, 2021Date of Patent: October 18, 2022Assignee: MediaTek Inc.Inventors: Vladimir Alexander Muratov, Patrick Stanley Riehl, William Plumb
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Publication number: 20220066572Abstract: 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: ApplicationFiled: September 13, 2021Publication date: March 3, 2022Applicant: MEDIATEK Singapore Pte. Ltd.Inventors: Vladimir Alexander Muratov, Da-shan Shiu, William Plumb, Philip Frank Tustin
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Patent number: 11237649Abstract: 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: GrantFiled: July 3, 2018Date of Patent: February 1, 2022Assignee: MEDIATEK Singapore Pte. Ltd.Inventors: Vladimir A. Muratov, Da-shan Shiu, William Plumb, Philip Frank Tustin
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Publication number: 20210242724Abstract: 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: ApplicationFiled: January 6, 2021Publication date: August 5, 2021Applicant: MediaTek Inc.Inventors: Vladimir Alexander Muratov, Patrick Stanley Riehl, William Plumb
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Publication number: 20210057939Abstract: 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: ApplicationFiled: November 9, 2020Publication date: February 25, 2021Applicant: MediaTek Inc.Inventors: Vladimir A. Muratov, William Plumb
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Patent number: 10916972Abstract: 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: GrantFiled: December 20, 2018Date of Patent: February 9, 2021Assignee: MediaTek Inc.Inventors: Vladimir A. Muratov, Patrick Stanley Riehl, William Plumb
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Patent number: 10868446Abstract: 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: GrantFiled: April 19, 2018Date of Patent: December 15, 2020Assignee: MediaTek Inc.Inventors: Vladimir A. Muratov, William Plumb
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Patent number: 10529359Abstract: 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: GrantFiled: April 17, 2014Date of Patent: January 7, 2020Assignee: Microsoft Technology Licensing, LLCInventors: Arthur Charles Tomlin, Jonathan Paulovich, Evan Michael Keibler, Jason Scott, Cameron Brown, Jonathan William Plumb
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Patent number: 10411831Abstract: 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: GrantFiled: March 17, 2014Date of Patent: September 10, 2019Assignee: MEDIATEK Singapore Pte. Ltd.Inventors: William Plumb, Zhen Wang, Zoran Zvonar, Patrick Stanley Riehl, Anand Satyamoorthy, Philip Frank Tustin
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Publication number: 20190199142Abstract: 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: ApplicationFiled: December 20, 2018Publication date: June 27, 2019Applicant: MediaTek Inc.Inventors: Vladimir A. Muratov, Patrick Stanley Riehl, William Plumb
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Patent number: 10257723Abstract: 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: GrantFiled: June 30, 2017Date of Patent: April 9, 2019Assignee: HFI Innovation INC.Inventors: Per Johan Mikael Johansson, Shiang-Jiun Lin, Yih-Shen Chen, William Plumb
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Publication number: 20190049544Abstract: 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: ApplicationFiled: July 3, 2018Publication date: February 14, 2019Applicant: MEDIATEK Singapore Pte. Ltd.Inventors: Vladimir A. Muratov, Da-shan Shiu, William Plumb, Philip Frank Tustin
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Patent number: 10199881Abstract: 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: GrantFiled: August 23, 2016Date of Patent: February 5, 2019Assignee: MediaTek Inc.Inventors: Vladimir A. Muratov, Patrick Stanley Riehl, William Plumb
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Patent number: 10193375Abstract: 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: GrantFiled: November 8, 2016Date of Patent: January 29, 2019Assignee: MediaTek Inc.Inventors: Philip Frank Tustin, William Plumb, Patrick Stanley Riehl
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Publication number: 20180241257Abstract: 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: ApplicationFiled: April 19, 2018Publication date: August 23, 2018Applicant: MediaTek Inc.Inventors: Vladimir A. Muratov, William Plumb
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Patent number: 9837848Abstract: 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: GrantFiled: March 14, 2014Date of Patent: December 5, 2017Assignee: MEDIATEK Singapore Pte. Ltd.Inventors: Timothy Perrin Fisher-Jeffes, William Plumb, Patrick Stanley Riehl, Anand Satyamoorthy
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Patent number: 9807659Abstract: 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: GrantFiled: June 29, 2015Date of Patent: October 31, 2017Assignee: MEDIATEK INC.Inventors: I-Kang Fu, Yih-Shen Chen, William Plumb, Per Johan Mikael Johansson
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Publication number: 20170303148Abstract: 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: ApplicationFiled: June 30, 2017Publication date: October 19, 2017Inventors: Per Johan Mikael Johansson, Shiang-Jiun Lin, Yih-Shen Chen, William Plumb