Patents by Inventor Kevin J. Ma

Kevin J. Ma 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).

  • Patent number: 11969344
    Abstract: Disclosed herein are representative embodiments of methods, apparatus, and systems used to deliver a prosthetic heart valve to a deficient valve. In one embodiment, for instance, a support structure and an expandable prosthetic valve are advanced through the aortic arch of a patient using a delivery system. The support structure is delivered to a position on or adjacent to the surface of the outflow side of the aortic valve (the support structure defining a support-structure interior). The expandable prosthetic valve is delivered into the aortic valve and into the support-structure interior. The expandable prosthetic heart valve is expanded while the expandable prosthetic heart valve is in the support-structure interior and while the support structure is at the position on or adjacent to the surface of the outflow side of the aortic valve, thereby causing one or more native leaflets of the aortic valve to be frictionally secured between the support structure and the expanded prosthetic heart valve.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: April 30, 2024
    Assignee: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Christopher J. Olson, Glen T. Rabito, Dustin P. Armer, Minh T. Ma, Devin H. Marr, Cheng-Tung Huang, Hiroshi Okabe, Kevin M. Stewart, Alison S. Curtis, Philip P. Corso, Jr.
  • Patent number: 11902368
    Abstract: A method is provided for managing over-the-top delivery of content through a plurality of content delivery networks (CDN). The method provided works transparently with standard HTTP servers supporting an initial request for content from a client to a first preferred CDN. If the first CDN does not have the content, the method includes provisions for the first CDN to acquire the content from a second CDN, or for the client to request the content from a second CDN directly. A system is also specified for implementing a client and server infrastructure in accordance with the provisions of the method.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: February 13, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Kevin J. Ma, Raj Nair, Robert Hickey, Daniel Biagini, Chin-Cheng Wu
  • Publication number: 20230042354
    Abstract: A method is provided for managing key rotation (use of series of keys) and secure key distribution in over-the-top content delivery. The method provided supports supplying a first content encryption key to a content packaging engine for encryption of a first portion of a video stream. Once the first content encryption key has expired, a second content encryption key is provided to the content packaging engine for encryption of a second portion of a video stream. The method further provides for notification of client devices of imminent key changes, as well as support for secure retrieval of new keys by client devices. A system is also specified for implementing a client and server infrastructure in accordance with the provisions of the method.
    Type: Application
    Filed: October 25, 2022
    Publication date: February 9, 2023
    Applicant: Ericsson AB
    Inventors: Kevin J. Ma, Robert Hickey, Paul Tweedale
  • Patent number: 11483604
    Abstract: A method is provided for managing key rotation (use of series of keys) and secure key distribution in over-the-top content delivery. The method provided supports supplying a first content encryption key to a content packaging engine for encryption of a first portion of a video stream. Once the first content encryption key has expired, a second content encryption key is provided to the content packaging engine for encryption of a second portion of a video stream. The method further provides for notification of client devices of imminent key changes, as well as support for secure retrieval of new keys by client devices. A system is also specified for implementing a client and server infrastructure in accordance with the provisions of the method.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: October 25, 2022
    Assignee: ERICSSON AB
    Inventors: Kevin J. Ma, Robert Hickey, Paul Tweedale
  • Patent number: 11228427
    Abstract: A method and a user device are disclosed for securing streaming content decryption. The method includes receiving at the user device a manifest for requested content, the manifest providing a Content Encryption Key (CEK) that is encrypted using a first public Key Encryption Key (KEK), a corresponding first private KEK being stored in secure storage on the user device; decrypting, inside a secure processing zone on the user device, the CEK using the first private KEK to create a decrypted content key; decrypting, inside the secure processing zone, requested content using the decrypted content key to form decrypted content; and providing the decrypted content to a decoder on the mobile user device.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: January 18, 2022
    Assignee: Ericsson AB
    Inventors: Raj Nair, Kevin J. Ma, Mikhail Mikhailov
  • Publication number: 20210360304
    Abstract: A method is provided for managing key rotation (use of series of keys) and secure key distribution in over-the-top content delivery. The method provided supports supplying a first content encryption key to a content packaging engine for encryption of a first portion of a video stream. Once the first content encryption key has expired, a second content encryption key is provided to the content packaging engine for encryption of a second portion of a video stream. The method further provides for notification of client devices of imminent key changes, as well as support for secure retrieval of new keys by client devices. A system is also specified for implementing a client and server infrastructure in accordance with the provisions of the method.
    Type: Application
    Filed: July 29, 2021
    Publication date: November 18, 2021
    Inventors: Kevin J. Ma, Robert Hickey, Paul Tweedale
  • Patent number: 11131189
    Abstract: A underground support includes a first row of panels, and a second row of panels configured to be secured to the first series of panels to define an interior space for receiving construction aggregate or concrete. Each panel of the first row of panels and the second row of panels includes a body having a top edge, a bottom edge positioned opposite from the top edge, a left edge, and a right edge positioned opposite from the left edge, with the top edges of the panels of the first row of panels configured to abut the bottom edges of the panels of the second row of panels.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: September 28, 2021
    Assignee: FCI Holdings Delaware, Inc.
    Inventors: Kevin J. Ma, James Edward Pinkley
  • Patent number: 11122313
    Abstract: A method is provided for managing key rotation (use of series of keys) and secure key distribution in over-the-top content delivery. The method provided supports supplying a first content encryption key to a content packaging engine for encryption of a first portion of a video stream. Once the first content encryption key has expired, a second content encryption key is provided to the content packaging engine for encryption of a second portion of a video stream. The method further provides for notification of client devices of imminent key changes, as well as support for secure retrieval of new keys by client devices. A system is also specified for implementing a client and server infrastructure in accordance with the provisions of the method.
    Type: Grant
    Filed: November 3, 2019
    Date of Patent: September 14, 2021
    Assignee: ERICSSON AB
    Inventors: Kevin J. Ma, Robert Hickey, Paul Tweedale
  • Publication number: 20210176313
    Abstract: A method is provided for managing over-the-top delivery of content through a plurality of content delivery networks (CDN). The method provided works transparently with standard HTTP servers supporting an initial request for content from a client to a first preferred CDN. If the first CDN does not have the content, the method includes provisions for the first CDN to acquire the content from a second CDN, or for the client to request the content from a second CDN directly. A system is also specified for implementing a client and server infrastructure in accordance with the provisions of the method.
    Type: Application
    Filed: January 22, 2021
    Publication date: June 10, 2021
    Inventors: Kevin J. Ma, Raj Nair, Robert Hickey, Daniel Biagini, Chin-Cheng Wu
  • Patent number: 11024179
    Abstract: A traffic control system that controls mobile drive unit traffic within a facility by handling requests to traverse intersections based on a priority based in part on an order in which requests are received. For intersections with a directional bias, higher priority is given to requests having a direction of travel that aligns with the directional bias.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: June 1, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Le Zou, Kevin J. Ma, Scott C. McLeod, James Plumley
  • Patent number: 10917464
    Abstract: A method is provided for managing over-the-top delivery of content through a plurality of content delivery networks (CDN). The method provided works transparently with standard HTTP servers supporting an initial request for content from a client to a first preferred CDN. If the first CDN does not have the content, the method includes provisions for the first CDN to acquire the content from a second CDN, or for the client to request the content from a second CDN directly. A system is also specified for implementing a client and server infrastructure in accordance with the provisions of the method.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: February 9, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Kevin J. Ma, Raj Nair, Rob Hickey, Daniel Biagini, Chin-Cheng Wu
  • Patent number: 10735800
    Abstract: Live streaming video content is processed and stored for real-time delivery of the content, future VoD viewing of the content, and time-shifted viewing of the content, by manipulating a common manifest or playlist. Previously stored content may be reordered and/or recombined in order to provide a personalized content viewing experience.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: August 4, 2020
    Assignee: Ericsson AB
    Inventors: Kevin J. Ma, Robert Hickey, Paul Tweedale, Prabhudev Navali, Man Li, Daniel Biagini
  • Publication number: 20200173280
    Abstract: A underground support includes a first row of panels, and a second row of panels configured to be secured to the first series of panels to define an interior space for receiving construction aggregate or concrete. Each panel of the first row of panels and the second row of panels includes a body having a top edge, a bottom edge positioned opposite from the top edge, a left edge, and a right edge positioned opposite from the left edge, with the top edges of the panels of the first row of panels configured to abut the bottom edges of the panels of the second row of panels.
    Type: Application
    Filed: November 12, 2019
    Publication date: June 4, 2020
    Inventors: Kevin J. Ma, James Edward Pinkley
  • Publication number: 20200068241
    Abstract: A method is provided for managing key rotation (use of series of keys) and secure key distribution in over-the-top content delivery. The method provided supports supplying a first content encryption key to a content packaging engine for encryption of a first portion of a video stream. Once the first content encryption key has expired, a second content encryption key is provided to the content packaging engine for encryption of a second portion of a video stream. The method further provides for notification of client devices of imminent key changes, as well as support for secure retrieval of new keys by client devices. A system is also specified for implementing a client and server infrastructure in accordance with the provisions of the method.
    Type: Application
    Filed: November 3, 2019
    Publication date: February 27, 2020
    Inventors: Kevin J. Ma, Robert Hickey, Paul Tweedale
  • Patent number: 10477257
    Abstract: A method is provided for managing key rotation (use of series of keys) and secure key distribution in over-the-top content delivery. The method provided supports supplying a first content encryption key to a content packaging engine for encryption of a first portion of a video stream. Once the first content encryption key has expired, a second content encryption key is provided to the content packaging engine for encryption of a second portion of a video stream. The method further provides for notification of client devices of imminent key changes, as well as support for secure retrieval of new keys by client devices. A system is also specified for implementing a client and server infrastructure in accordance with the provisions of the method.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: November 12, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Kevin J. Ma, Robert Hickey, Paul Tweedale
  • Patent number: 10373196
    Abstract: A method is provided for performing targeted ad insertion in over-the-top delivery of content by detecting ad replacement opportunities in a live content stream and preparing the content for seamless replacement with segmented HTTP adaptive streaming delivery. The method includes provisions for multi-stage proxy-based segment replacement for targeted ad delivery. The method provided works transparently with standard HTTP adaptive streaming clients. A system is also specified for implementing a client and server content delivery infrastructure in accordance with the provisions of the method.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: August 6, 2019
    Assignee: ERICSSON AB
    Inventors: Kevin J. Ma, Robert Hickey, Raj Nair, Paul Tweedale, Daniel Biagini, Jianguo Xu, Prabhudev Navali
  • Publication number: 20190199765
    Abstract: A method and system is provided for controlling bandwidth rate limiting and client rendering rate limiting in a video delivery network. The method provides network service providers with a means for overriding video delivery data rates selected through dynamic client bitrate adaptation, as well as video data rendering rates of the clients, to limit the impact of network congestion. A system is also specified for implementing a client and a proxy computer in accordance with the method. The system works transparently with standard HTTP-based video delivery systems and includes an HTTP proxy cache infrastructure to support bandwidth rate limiting and client rending rate limiting. The system further provides for administrative overrides of client bitrate selection and client bandwidth usage.
    Type: Application
    Filed: December 17, 2014
    Publication date: June 27, 2019
    Inventors: Kevin J. Ma, Raj Nair, Robert Hickey, Jianguo Xu
  • Patent number: 10320870
    Abstract: A method and system is provided for controlling bandwidth rate limiting and client rendering rate limiting in a video delivery network. The method provides network service providers with a means for overriding video delivery data rates selected through dynamic client bitrate adaptation, as well as video data rendering rates of the clients, to limit the impact of network congestion. A system is also specified for implementing a client and a proxy computer in accordance with the method. The system works transparently with standard HTTP-based video delivery systems and includes an HTTP proxy cache infrastructure to support bandwidth rate limiting and client rending rate limiting. The system further provides for administrative overrides of client bitrate selection and client bandwidth usage.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: June 11, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Kevin J. Ma, Raj Nair, Robert Hickey, Jianguo Xu
  • Publication number: 20180192102
    Abstract: A method is provided for managing key rotation (use of series of keys) and secure key distribution in over-the-top content delivery. The method provided supports supplying a first content encryption key to a content packaging engine for encryption of a first portion of a video stream. Once the first content encryption key has expired, a second content encryption key is provided to the content packaging engine for encryption of a second portion of a video stream. The method further provides for notification of client devices of imminent key changes, as well as support for secure retrieval of new keys by client devices. A system is also specified for implementing a client and server infrastructure in accordance with the provisions of the method.
    Type: Application
    Filed: March 2, 2018
    Publication date: July 5, 2018
    Inventors: Kevin J. Ma, Robert Hickey, Paul Tweedale
  • Patent number: 9912975
    Abstract: A method is provided for managing key rotation (use of series of keys) and secure key distribution in over-the-top content delivery. The method provided supports supplying a first content encryption key to a content packaging engine for encryption of a first portion of a video stream. Once the first content encryption key has expired, a second content encryption key is provided to the content packaging engine for encryption of a second portion of a video stream. The method further provides for notification of client devices of imminent key changes, as well as support for secure retrieval of new keys by client devices. A system is also specified for implementing a client and server infrastructure in accordance with the provisions of the method.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: March 6, 2018
    Assignee: ERICSSON AB
    Inventors: Kevin J. Ma, Robert Hickey, Paul Tweedale