Patents by Inventor Charles Chung

Charles Chung 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: 20250247404
    Abstract: A system uses an artificial intelligence (AI) engine to generate a response for end-user devices using services and to provide threat protection in a cloud-based network. The system consists of tenants, tunnels, the AI engine, and an AI reporter. A tenant includes the end-user devices. The tunnels transmit and segregate traffic between the end-user devices and the services. The AI engine intercepts traffic within tunnels, receives a request from a user, and applies functions to manage it. The AI engine monitors the request and generates the response. The AI engine determines patterns based on interactions of the user with services, processes the patterns, generates a baseline of user activity and change settings. The AI engine generates the response based on the settings and sends it to the user to fulfill the request. The AI reporter transmits information corresponding to the request and response across the tenants of the cloud-based network.
    Type: Application
    Filed: December 9, 2024
    Publication date: July 31, 2025
    Applicant: Netskope, Inc.
    Inventors: Stevan W. Pierce, Jr., Damian Charles Chung, Robert Wayne Butler, II, Madhura Sridhar
  • Patent number: 12316647
    Abstract: A video data loss prevention (vDLP) system that uses machine-learning for protection against data exfiltration of sensitive content across multiple tenants in a cloud-based network. The vDLP system consists of tenants that include end-user devices and a vDLP server. The vDLP server is configured to intercept traffic at an application layer of the cloud-based network and receive a video file from traffic. A viewer for the video file is remote from the cloud-based network. The vDLP server further recognizes text of audio and frames extracted from the video file using a machine-learning engine. The vDLP server then analyzes the frames and text using machine-learning classifiers, enforces policies against machine-learning classifiers for protection against data exfiltration of sensitive content in the video file, and sends a notification away from the cloud-based network upon detection of violation of a policy.
    Type: Grant
    Filed: January 31, 2024
    Date of Patent: May 27, 2025
    Assignee: Netskope, Inc.
    Inventors: Stevan W. Pierce, Jr., Damian Charles Chung, Robert Wayne Butler, Madhura Sridhar
  • Patent number: 12166776
    Abstract: A system uses an artificial intelligence (AI) engine to generate a response for end-user devices using services and to provide threat protection in a cloud-based network. The system consists of tenants, tunnels, the AI engine, and an AI reporter. A tenant includes the end-user devices. The tunnels transmit and segregate traffic between the end-user devices and the services. The AI engine intercepts traffic within tunnels, receives a request from a user, and determines a context. The AI engine further retrieves a user score for policy violations, analyzes the request, and applies functions to manage it. The context is built by analyzing interactions of users for similar requests. The AI engine generates the response based on the context and the user score and sends it to the user to fulfill the request. The AI reporter transmits information corresponding to the request and response across the tenants of the cloud-based network.
    Type: Grant
    Filed: January 31, 2024
    Date of Patent: December 10, 2024
    Assignee: Netskope, Inc.
    Inventors: Stevan W. Pierce, Jr., Damian Charles Chung, Robert Wayne Butler, II, Madhura Sridhar
  • Patent number: 12119798
    Abstract: Acoustic resonator devices and filters are disclosed. A piezoelectric plate is attached to a substrate, a portion of the piezoelectric plate forming a diaphragm spanning a cavity in the substrate. A first conductor pattern is formed on a surface of the piezoelectric plate. The first conductor pattern includes interleaved fingers of an interdigital transducer disposed on the diaphragm, and a first plurality of contact pads. A second conductor pattern is formed on a surface of a base, the second conductor pattern including a second plurality of contact pads. Each pad of the first plurality of contact pads is connected to a respective pad of the second plurality of contact pads. A seal is formed between a perimeter of the piezoelectric plate and a perimeter of the base.
    Type: Grant
    Filed: January 12, 2023
    Date of Patent: October 15, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Patrick Turner, Mike Eddy, Andrew Kay, Ventsislav Yantchev, Charles Chung
  • Patent number: 12095444
    Abstract: Methods of fabricating acoustic devices are disclosed. A lateral etch stop is formed in a substrate. A back surface of a piezoelectric plate is attached to a front surface of the substrate. A conductor pattern is formed on the front surface of the piezoelectric plate, the conductor pattern including interleaved fingers of an interdigital transducer (IDT). A cavity is etched in the substrate using an etchant introduced through one or more openings in the piezoelectric plate. A lateral extent of the cavity is defined by the lateral etch stop. After etching the cavity, a portion of the piezoelectric plate forms a diaphragm spanning the cavity with the interleaved fingers of the IDT disposed on the diaphragm.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: September 17, 2024
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Patrick Turner, Carolyn Bianco, Charles Chung
  • Patent number: 12095437
    Abstract: Acoustic resonator devices and filters are disclosed. An acoustic resonator chip includes a piezoelectric plate attached to a substrate, a portion of the piezoelectric plate forming a diaphragm spanning a cavity in the substrate. A first conductor pattern formed on a surface of the piezoelectric plate includes an interdigital transducer with interleaved fingers on the diaphragm, and a first plurality of contact pads. A second conductor pattern is formed on a surface of an interposer, the second conductor pattern including a second plurality of contact pads. Each pad of the first plurality of contact pads is directly bonded to a respective pad of the second plurality of contact pads. A seal is formed between a perimeter of the acoustic resonator chip and a perimeter of the interposer.
    Type: Grant
    Filed: October 9, 2021
    Date of Patent: September 17, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Patrick Turner, Mike Eddy, Andrew Kay, Ventsislav Yantchev, Charles Chung
  • Patent number: 12095438
    Abstract: Acoustic resonator devices and filters are disclosed. An acoustic resonator chip includes a piezoelectric plate attached to a substrate, a portion of the piezoelectric plate forming a diaphragm spanning a cavity in the substrate. A first conductor pattern formed on a surface of the piezoelectric plate includes interleaved fingers of an interdigital transducer on the diaphragm and a first plurality of contact pads. A second conductor pattern is formed on a surface of an interposer, the second conductor pattern including a second plurality of contact pads. Each pad of the first plurality of contact pads is directly connected to a respective pad of the second plurality of contact pads. A seal is formed between a perimeter of the piezoelectric plate and a perimeter of the interposer.
    Type: Grant
    Filed: October 9, 2021
    Date of Patent: September 17, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Patrick Turner, Mike Eddy, Andrew Kay, Ventsislav Yantchev, Charles Chung
  • Patent number: 12088270
    Abstract: Acoustic resonator devices and filters are disclosed. A piezoelectric plate is attached to a substrate, a portion of the piezoelectric plate forming a diaphragm spanning a cavity in the substrate. A first conductor pattern is formed on a surface of the piezoelectric plate. The first conductor pattern includes interleaved fingers of an interdigital transducer disposed on the diaphragm, and a first plurality of contact pads. A second conductor pattern is formed on a surface of a base, the second conductor pattern including a second plurality of contact pads. Each pad of the first plurality of contact pads is connected to a respective pad of the second plurality of contact pads. A seal is formed between a perimeter of the piezoelectric plate and a perimeter of the base.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: September 10, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Patrick Turner, Mike Eddy, Andrew Kay, Ventsislav Yantchev, Charles Chung
  • Patent number: 11705885
    Abstract: Acoustic resonator devices and methods are disclosed. An acoustic resonator device includes a substrate having a front surface and a cavity, a perimeter of the cavity defined by a lateral etch-stop comprising etch-stop material. A back surface of a single-crystal piezoelectric plate is attached to the front surface of the substrate except for a portion of the piezoelectric plate that forms a diaphragm that spans the cavity. An interdigital transducer (IDT) is formed on the front surface of the single-crystal piezoelectric plate such that interleaved fingers of the IDT are disposed on the diaphragm. The piezoelectric plate and the IDT are configured such that a radio frequency signal applied to the IDT excites a primary shear acoustic mode in the diaphragm.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: July 18, 2023
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Patrick Turner, Carolyn Bianco, Charles Chung
  • Publication number: 20230170867
    Abstract: Acoustic resonator devices and filters are disclosed. A piezoelectric plate is attached to a substrate, a portion of the piezoelectric plate forming a diaphragm spanning a cavity in the substrate. A first conductor pattern is formed on a surface of the piezoelectric plate. The first conductor pattern includes interleaved fingers of an interdigital transducer disposed on the diaphragm, and a first plurality of contact pads. A second conductor pattern is formed on a surface of a base, the second conductor pattern including a second plurality of contact pads. Each pad of the first plurality of contact pads is connected to a respective pad of the second plurality of contact pads. A seal is formed between a perimeter of the piezoelectric plate and a perimeter of the base.
    Type: Application
    Filed: January 12, 2023
    Publication date: June 1, 2023
    Inventors: Patrick Turner, Mike Eddy, Andrew Kay, Ventsislav Yantchev, Charles Chung
  • Publication number: 20220379022
    Abstract: A system for delivering an agent to a patient, comprises a delivery device. The delivery device is configured to deliver a first agent to the patient, and comprises a reservoir, a transcutaneous delivery assembly, a pumping mechanism, a control module, a power supply, and a housing. The reservoir stores the first agent. The transcutaneous delivery assembly delivers the first agent to the patient transcutaneously. The pumping mechanism receives the first agent from the reservoir and propels the first agent to the transcutaneous delivery assembly. The control module controls at least the pumping mechanism. The power supply provides energy to at least the control module and the pumping mechanism. The housing surrounds at least the pumping mechanism. Methods of delivering an agent to the patient are also described.
    Type: Application
    Filed: October 30, 2020
    Publication date: December 1, 2022
    Inventors: Dwight Meglan, Richard William Berenson, Mervyn Dodson Michael, Charles Chung, Daniel Contreras, Kimberly Harrison, Xue'en Yang, Robert Gordon Maurice Selby, Alon Greenenko, J. Christopher Flaherty
  • Publication number: 20220029606
    Abstract: Acoustic resonator devices and filters are disclosed. An acoustic resonator chip includes a piezoelectric plate attached to a substrate, a portion of the piezoelectric plate forming a diaphragm spanning a cavity in the substrate. A first conductor pattern formed on a surface of the piezoelectric plate includes an interdigital transducer with interleaved fingers on the diaphragm, and a first plurality of contact pads. A second conductor pattern is formed on a surface of an interposer, the second conductor pattern including a second plurality of contact pads. Each pad of the first plurality of contact pads is directly bonded to a respective pad of the second plurality of contact pads. A seal is formed between a perimeter of the acoustic resonator chip and a perimeter of the interposer.
    Type: Application
    Filed: October 9, 2021
    Publication date: January 27, 2022
    Inventors: Patrick Turner, Mike Eddy, Andrew Kay, Ventsislav Yantchev, Charles Chung
  • Publication number: 20220029607
    Abstract: Acoustic resonator devices and filters are disclosed. An acoustic resonator chip includes a piezoelectric plate attached to a substrate, a portion of the piezoelectric plate forming a diaphragm spanning a cavity in the substrate. A first conductor pattern formed on a surface of the piezoelectric plate includes interleaved fingers of an interdigital transducer on the diaphragm and a first plurality of contact pads. A second conductor pattern is formed on a surface of an interposer, the second conductor pattern including a second plurality of contact pads. Each pad of the first plurality of contact pads is directly connected to a respective pad of the second plurality of contact pads. A seal is formed between a perimeter of the piezoelectric plate and a perimeter of the interposer.
    Type: Application
    Filed: October 9, 2021
    Publication date: January 27, 2022
    Inventors: Patrick Turner, Mike Eddy, Andrew Kay, Ventsislav Yantchev, Charles Chung
  • Publication number: 20210091747
    Abstract: Acoustic resonator devices and methods are disclosed. An acoustic resonator device includes a substrate having a front surface and a cavity, a perimeter of the cavity defined by a lateral etch-stop comprising etch-stop material. A back surface of a single-crystal piezoelectric plate is attached to the front surface of the substrate except for a portion of the piezoelectric plate that forms a diaphragm that spans the cavity. An interdigital transducer (IDT) is formed on the front surface of the single-crystal piezoelectric plate such that interleaved fingers of the IDT are disposed on the diaphragm. The piezoelectric plate and the IDT are configured such that a radio frequency signal applied to the IDT excites a primary shear acoustic mode in the diaphragm.
    Type: Application
    Filed: December 2, 2020
    Publication date: March 25, 2021
    Inventors: Patrick Turner, Carolyn Bianco, Charles Chung
  • Publication number: 20210044274
    Abstract: Acoustic resonator devices and filters are disclosed. A piezoelectric plate is attached to a substrate, a portion of the piezoelectric plate forming a diaphragm spanning a cavity in the substrate. A first conductor pattern is formed on a surface of the piezoelectric plate. The first conductor pattern includes interleaved fingers of an interdigital transducer disposed on the diaphragm, and a first plurality of contact pads. A second conductor pattern is formed on a surface of a base, the second conductor pattern including a second plurality of contact pads. Each pad of the first plurality of contact pads is connected to a respective pad of the second plurality of contact pads. A seal is formed between a perimeter of the piezoelectric plate and a perimeter of the base.
    Type: Application
    Filed: October 9, 2020
    Publication date: February 11, 2021
    Inventors: Patrick Turner, Mike Eddy, Andrew Kay, Ventsislav Yantchev, Charles Chung
  • Patent number: 10911021
    Abstract: Acoustic resonator devices and methods are disclosed. An acoustic resonator device includes a substrate having a front surface and a cavity, a perimeter of the cavity defined by a lateral etch-stop comprising etch-stop material. A back surface of a single-crystal piezoelectric plate is attached to the front surface of the substrate except for a portion of the piezoelectric plate that forms a diaphragm that spans the cavity. An interdigital transducer (IDT) is formed on the front surface of the single-crystal piezoelectric plate such that interleaved fingers of the IDT are disposed on the diaphragm.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: February 2, 2021
    Assignee: Resonant Inc.
    Inventors: Patrick Turner, Carolyn Bianco, Charles Chung
  • Publication number: 20200412328
    Abstract: Acoustic resonator devices and methods are disclosed. An acoustic resonator device includes a substrate having a front surface and a cavity, a perimeter of the cavity defined by a lateral etch-stop comprising etch-stop material. A back surface of a single-crystal piezoelectric plate is attached to the front surface of the substrate except for a portion of the piezoelectric plate that forms a diaphragm that spans the cavity. An interdigital transducer (IDT) is formed on the front surface of the single-crystal piezoelectric plate such that interleaved fingers of the IDT are disposed on the diaphragm.
    Type: Application
    Filed: June 26, 2020
    Publication date: December 31, 2020
    Inventors: Patrick Turner, Carolyn Bianco, Charles Chung
  • Publication number: 20200412329
    Abstract: Methods of fabricating acoustic devices are disclosed. A lateral etch stop is formed in a substrate. A back surface of a piezoelectric plate is attached to a front surface of the substrate. A conductor pattern is formed on the front surface of the piezoelectric plate, the conductor pattern including interleaved fingers of an interdigital transducer (IDT). A cavity is etched in the substrate using an etchant introduced through one or more openings in the piezoelectric plate. A lateral extent of the cavity is defined by the lateral etch stop. After etching the cavity, a portion of the piezoelectric plate forms a diaphragm spanning the cavity with the interleaved fingers of the IDT disposed on the diaphragm.
    Type: Application
    Filed: September 11, 2020
    Publication date: December 31, 2020
    Inventors: Patrick Turner, Carolyn Bianco, Charles Chung
  • Publication number: 20200382101
    Abstract: Acoustic resonator devices and filters are disclosed. A piezoelectric plate is attached to a substrate, a portion of the piezoelectric plate forming a diaphragm spanning a cavity in the substrate. A first conductor pattern is formed on a surface of the piezoelectric plate. The first conductor pattern includes interleaved fingers of an interdigital transducer disposed on the diaphragm, and a first plurality of contact pads. A second conductor pattern is formed on a surface of a base, the second conductor pattern including a second plurality of contact pads. Each pad of the first plurality of contact pads is directly bonded to a respective pad of the second plurality of contact pads. A ring-shaped seal is form between a perimeter of the piezoelectric plate and a perimeter of the base.
    Type: Application
    Filed: August 20, 2020
    Publication date: December 3, 2020
    Inventors: Patrick Turner, Mike Eddy, Andrew Kay, Ventsislav Yantchev, Charles Chung
  • Patent number: 10819309
    Abstract: Acoustic resonator devices and filters are disclosed. A piezoelectric plate is attached to a substrate, a portion of the piezoelectric plate forming a diaphragm spanning a cavity in the substrate. A first conductor pattern is formed on a surface of the piezoelectric plate. The first conductor pattern includes interleaved fingers of an interdigital transducer disposed on the diaphragm, and a first plurality of contact pads. A second conductor pattern is formed on a surface of a base, the second conductor pattern including a second plurality of contact pads. Each pad of the first plurality of contact pads is directly bonded to a respective pad of the second plurality of contact pads. A ring-shaped seal is form between a perimeter of the piezoelectric plate and a perimeter of the base.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: October 27, 2020
    Assignee: Resonant Inc.
    Inventors: Patrick Turner, Mike Eddy, Andrew Kay, Ventsislav Yantchev, Charles Chung