Patents by Inventor Jorge R. Lopez Danieluk

Jorge R. Lopez Danieluk 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).

  • Secure call DTMF signaling
    Patent number: 8249242
    Abstract: A method and system for secure call Dual-Tone Multi-Frequency (DTMF) signaling includes entering (202) dial string of a telephone number of a destination device, assigning (210, 212) the dial string to a predefined string having a total length that is greater than the dial string such that there will be at least one leading hexadecimal bit in the predefined string length that is not used when the entered dial string is converted to a hexadecimal, converting (214) the dial string to hexadecimal, reversing the order of the hexadecimal, and placing the reversed hexadecimal at the beginning of the predefined string, appending (216) “one” bits to the predefined string length indicating how many nibbles of the predefined string length are unused, if any, and appending the remaining intervening unused bits in the predefined string length to “zero” bits, and sending (226) the encoded string length.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: August 21, 2012
    Assignee: Symbol Technologies, Inc.
    Inventors: Soren K. Lundsgaard, Douglas A. Kuhlman, Yi-Cheng Liu, Edgardo L. Promenzio, Jorge R. Lopez Danieluk
  • SECURE CALL DTMF SIGNALING
    Publication number: 20120063586
    Abstract: A method and system for secure call Dual-Tone Multi-Frequency (DTMF) signaling includes entering (202) dial string of a telephone number of a destination device, assigning (210, 212) the dial string to a predefined string having a total length that is greater than the dial string such that there will be at least one leading hexadecimal bit in the predefined string length that is not used when the entered dial string is converted to a hexadecimal, converting (214) the dial string to hexadecimal, reversing the order of the hexadecimal, and placing the reversed hexadecimal at the beginning of the predefined string, appending (216) “one” bits to the predefined string length indicating how many nibbles of the predefined string length are unused, if any, and appending the remaining intervening unused bits in the predefined string length to “zero” bits, and sending (226) the encoded string length.
    Type: Application
    Filed: September 9, 2010
    Publication date: March 15, 2012
    Applicant: SYMBOL TECHNOLOGIES, INC.
    Inventors: Soren K. Lundsgaard, Douglas A. Kuhlman, Yi-Cheng Liu, Edgardo L. Promenzio, Jorge R. Lopez Danieluk