Patents by Inventor Christopher J. Riddick

Christopher J. Riddick 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: 20240344595
    Abstract: A belt tensioner system for a belt starter generator has a first belt tensioner with a first fluid operated strut. A first arm is coupled with the first strut and has a pulley to tension a belt. A pivot fixes the first arm on the belt starter generator for pivotal movement so that the strut moves unidirectionally pivoting the first arm toward a first side of the belt to apply tension on the belt via the pulley. A second belt tensioner has a second fluid operated strut. A second arm is coupled with the second strut and has a pulley to tension the belt. A pivot for fixing the second arm on the belt starter generator for pivotal movement such that the second strut moves unidirectionally pivoting the second arm toward a second side of the belt to apply tension on the belt via the pulley.
    Type: Application
    Filed: April 11, 2023
    Publication date: October 17, 2024
    Inventors: Kevin J. Walker, Christopher F. Riddick, Carl J. Stieler, Joseph W. Zamm
  • Patent number: 7062045
    Abstract: In a media protection system and method, an original media item is encrypted before it is distributed. At the point of sale (POS) or point of distribution, the consumer presents his personal smart token to the clerk who inserts it into a POS reader along with a companion digital identifier (CDI™). The POS reader extracts a digital key from the CDI™ and merges it with the player list in the consumer's smart token. The POS reader then destroys the CDI™ and returns the smart token to the consumer. The digital key for the media item is now stored on the consumer's personal smart token, merged with the player identifiers for the players possessed by the user. When the user returns home, he inserts the media item into his player along with his smart token, and the digital key is extracted and used to decrypt the encryption key for the material that is stored on the media item itself. Then, the player decrypts the media item as it is played.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: June 13, 2006
    Assignee: CLWT, LLC
    Inventors: Christopher J. Riddick, Lan Huu Tran
  • Publication number: 20030046568
    Abstract: In a media protection system and method, an original media item is encrypted before it is distributed. A digital encryption key for the media item is stored on the consumer's personal smart token. To play the media item, the user inserts the media item into his player along with his smart token, and the digital encryption key is extracted by a hardware decryption module (HDM) in the player (or host device), and is used to determine that the decryption key is linked to the HDM. Once that determination is made, the HDM decrypts the media item as it is played. The HDM provides a USB or other standard interface between a plug connected to the player (or host device) and a socket which receives the smart token. The HDM comprises a decryption processor, a control processor, an internal memory, an external interface, and a memory element, such as a read-only memory (ROM). The HDM is implemented as a self-contained, tamperproof subsystem of the media protection system with which it is associated.
    Type: Application
    Filed: January 9, 2002
    Publication date: March 6, 2003
    Inventors: Christopher J. Riddick, Lan Huu Tran
  • Publication number: 20030044006
    Abstract: In a media protection system and method, an original media item is encrypted before it is distributed. At the point of sale (POS) or point of distribution, the consumer presents his personal smart token to the clerk who inserts it into a POS reader along with a companion digital identifier (CDI™). The POS reader extracts a digital key from the CDI™ and merges it with the player list in the consumer's smart token. The POS reader then destroys the CDI™ and returns the smart token to the consumer. The digital key for the media item is now stored on the consumer's personal smart token, merged with the player identifiers for the players possessed by the user. When the user returns home, he inserts the media item into his player along with his smart token, and the digital key is extracted and used to decrypt the encryption key for the material that is stored on the media item itself. Then, the player decrypts the media item as it is played.
    Type: Application
    Filed: September 6, 2001
    Publication date: March 6, 2003
    Applicant: CLWT, LLC
    Inventors: Christopher J. Riddick, Lan Huu Tran