Patents by Inventor Jimmy Chi-Fong Ho

Jimmy Chi-Fong Ho 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).

  • Initialization for hyper frame number of signaling radio bearers
    Patent number: 6925298
    Abstract: A wireless communication system comprises an integrity key, a mobile unit comprising a first integrity count value, and a UTRAN comprising a second integrity count value. The UTRAN is coupled to the mobile unit for transmitting a control command to the mobile unit. The control command is used for starting an integrity protection process for a radio bearer, with the integrity protection process using the integrity key and the first and second integrity count values for verifying a transmission integrity between the mobile unit and the UTRAN. The mobile unit sends a START value for the radio bearer to the UTRAN. The UTRAN sends the control command to the mobile unit to activate integrity protection along the radio bearer, and sets the x most significant bits of the second integrity count value of the UTRAN equal to the START value last received from the mobile unit for the radio bearer.
    Type: Grant
    Filed: August 26, 2002
    Date of Patent: August 2, 2005
    Assignee: ASUSTek Computer Inc.
    Inventor: Jimmy Chi-Fong Ho
  • Initialization for hyper frame number of signaling radio bearers
    Publication number: 20040038668
    Abstract: A wireless communication system comprises an integrity key, a mobile unit comprising a first integrity count value, and a UTRAN comprising a second integrity count value. The UTRAN is coupled to the mobile unit for transmitting a control command to the mobile unit. The control command is used for starting an integrity protection process for a radio bearer, with the integrity protection process using the integrity key and the first and second integrity count values for verifying a transmission integrity between the mobile unit and the UTRAN. The mobile unit sends a START value for the radio bearer to the UTRAN. The UTRAN sends the control command to the mobile unit to activate integrity protection along the radio bearer, and sets the x most significant bits of the second integrity count value of the UTRAN equal to the START value last received from the mobile unit for the radio bearer.
    Type: Application
    Filed: August 26, 2002
    Publication date: February 26, 2004
    Inventor: Jimmy Chi-Fong Ho