Patents by Inventor Kevin J. Leddy

Kevin J. Leddy 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: 11088999
    Abstract: A “trusted domain” is established within which content received from a communications network, e.g., a cable TV network, is protected from unauthorized copying thereof, in accordance with the invention. In an illustrative embodiment, the trusted domain includes a device associated with a user which receives content from the cable TV network. The content may be encrypted using a content key in accordance, e.g., with a 3DES encryption algorithm before it is stored in the device. In addition, a first encrypted content key version and a second encrypted content key version are generated by respectively encrypting the content key with a public key associated with the device and another public key associated with the user, in accordance with public key cryptography. The first and second encrypted content key versions are stored in association with the encrypted content in the device storage.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: August 10, 2021
    Assignee: TIME WARNER CABLE ENTERPRISES LLC
    Inventors: William Helms, Michael T. Hayashi, Kevin J. Leddy, David A. Christman
  • Publication number: 20190215310
    Abstract: A “trusted domain” is established within which content received from a communications network, e.g., a cable TV network, is protected from unauthorized copying thereof, in accordance with the invention. In an illustrative embodiment, the trusted domain includes a device associated with a user which receives content from the cable TV network. The content may be encrypted using a content key in accordance, e.g., with a 3DES encryption algorithm before it is stored in the device. In addition, a first encrypted content key version and a second encrypted content key version are generated by respectively encrypting the content key with a public key associated with the device and another public key associated with the user, in accordance with public key cryptography. The first and second encrypted content key versions are stored in association with the encrypted content in the device storage.
    Type: Application
    Filed: January 7, 2019
    Publication date: July 11, 2019
    Inventors: William Helms, Michael T. Hayashi, Kevin J. Leddy, David A. Christman
  • Patent number: 10178072
    Abstract: A “trusted domain” is established within which content received from a communications network, e.g., a cable TV network, is protected from unauthorized copying thereof, in accordance with the invention. In an illustrative embodiment, the trusted domain includes a device associated with a user which receives content from the cable TV network. The content may be encrypted using a content key in accordance, e.g., with a 3DES encryption algorithm before it is stored in the device. In addition, a first encrypted content key version and a second encrypted content key version are generated by respectively encrypting the content key with a public key associated with the device and another public key associated with the user, in accordance with public key cryptography. The first and second encrypted content key versions are stored in association with the encrypted content in the device storage.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: January 8, 2019
    Assignee: Time Warner Cable Enterprises LLC
    Inventors: William Helms, Michael T. Hayashi, Kevin J. Leddy, David A. Christman
  • Publication number: 20160182461
    Abstract: A “trusted domain” is established within which content received from a communications network, e.g., a cable TV network, is protected from unauthorized copying thereof, in accordance with the invention. In an illustrative embodiment, the trusted domain includes a device associated with a user which receives content from the cable TV network. The content may be encrypted using a content key in accordance, e.g., with a 3DES encryption algorithm before it is stored in the device. In addition, a first encrypted content key version and a second encrypted content key version are generated by respectively encrypting the content key with a public key associated with the device and another public key associated with the user, in accordance with public key cryptography. The first and second encrypted content key versions are stored in association with the encrypted content in the device storage.
    Type: Application
    Filed: July 2, 2015
    Publication date: June 23, 2016
    Inventors: William Helms, Michael T. Hayashi, Kevin J. Leddy, David A. Christman
  • Patent number: 9083513
    Abstract: A “trusted domain” is established within which content received from a communications network, e.g., a cable TV network, is protected from unauthorized copying thereof, in accordance with the invention. In an illustrative embodiment, the trusted domain includes a device associated with a user which receives content from the cable TV network. The content may be encrypted using a content key in accordance, e.g., with a 3DES encryption algorithm before it is stored in the device. In addition, a first encrypted content key version and a second encrypted content key version are generated by respectively encrypting the content key with a public key associated with the device and another public key associated with the user, in accordance with public key cryptography. The first and second encrypted content key versions are stored in association with the encrypted content in the device storage.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: July 14, 2015
    Assignee: Time Warner Cable Enterprises LLC
    Inventors: William Helms, Michael T. Hayashi, Kevin J. Leddy, David A. Christman
  • Publication number: 20130070922
    Abstract: A “trusted domain” is established within which content received from a communications network, e.g., a cable TV network, is protected from unauthorized copying thereof, in accordance with the invention. In an illustrative embodiment, the trusted domain includes a device associated with a user which receives content from the cable TV network. The content may be encrypted using a content key in accordance, e.g., with a 3DES encryption algorithm before it is stored in the device. In addition, a first encrypted content key version and a second encrypted content key version are generated by respectively encrypting the content key with a public key associated with the device and another public key associated with the user, in accordance with public key cryptography. The first and second encrypted content key versions are stored in association with the encrypted content in the device storage.
    Type: Application
    Filed: September 10, 2012
    Publication date: March 21, 2013
    Inventors: William Helms, Michael T. Hayashi, Kevin J. Leddy, David A. Christman
  • Patent number: 8266429
    Abstract: A “trusted domain” is established within which content received from a communications network, e.g., a cable TV network, is protected from unauthorized copying thereof, in accordance with the invention. In an illustrative embodiment, the trusted domain includes a device associated with a user which receives content from the cable TV network. The content may be encrypted using a content key in accordance, e.g., with a 3DES encryption algorithm before it is stored in the device. In addition, a first encrypted content key version and a second encrypted content key version are generated by respectively encrypting the content key with a public key associated with the device and another public key associated with the user, in accordance with public key cryptography. The first and second encrypted content key versions are stored in association with the encrypted content in the device storage.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: September 11, 2012
    Assignee: Time Warner Cable, Inc.
    Inventors: William Helms, Michael T. Hayashi, Kevin J. Leddy, David A. Christman
  • Publication number: 20120131603
    Abstract: Live television broadcast and other information and entertainment programs, e.g., videos-on-demand (VOD), are provided to a user through a communications network, e.g., a cable network. A processing unit is employed at an headend of the communications network to respond to user requests for PVR-like functions, e.g., pausing, rewinding and fast-forwarding, to be performed on the program content being viewed. The processing unit in accordance with the invention causes a delivery of an appropriate version of the program content to meet such user requests.
    Type: Application
    Filed: March 14, 2011
    Publication date: May 24, 2012
    Inventors: Louis D. Williamson, Joseph Buehl, John W. Callahan, John B. Carlucci, James A. Chiddix, Michael T. Hayashi, Kevin J. Leddy
  • Patent number: 7908626
    Abstract: Live television broadcast and other information and entertainment programs, e.g., videos-on-demand (VOD), are provided to a user through a communications network, e.g., a cable network. A processing unit is employed at an headend of the communications network to respond to user requests for PVR-like functions, e.g., pausing, rewinding and fast-forwarding, to be performed on the program content being viewed. The processing unit in accordance with the invention causes a delivery of an appropriate version of the program content to meet such user requests.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: March 15, 2011
    Assignee: Time Warner Interactive Video Group, Inc.
    Inventors: Louis D. Williamson, Joseph Buehl, John W. Callahan, John B. Carlucci, James A. Chiddix, Michael T. Hayashi, Kevin J. Leddy
  • Publication number: 20030208767
    Abstract: Live television broadcast and other information and entertainment programs, e.g., videos-on-demand (VOD), are provided to a user through a communications network, e.g., a cable network. A processing unit is employed at an headend of the communications network to respond to user requests for PVR-like functions, e.g., pausing, rewinding and fast-forwarding, to be performed on the program content being viewed. The processing unit in accordance with the invention causes a delivery of an appropriate version of the program content to meet such user requests.
    Type: Application
    Filed: October 2, 2002
    Publication date: November 6, 2003
    Inventors: Louis D. Williamson, Joseph Buehl, John W. Callahan, John B. Carlucci, James A. Chiddix, Michael T. Hayashi, Kevin J. Leddy