Patents by Inventor Dragos Ion

Dragos Ion 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).

  • DTMF tone monitoring apparatus and method of identifying a DTMF tone
    Patent number: 8681824
    Abstract: A tone monitoring apparatus comprises a tone detector arranged to detect, when in use, a tone having a first duration equal to or greater than a predetermined duration. The tone detector is further arranged to select, when in use, a first signal path between a channel input and a channel output, the selection being in response to the first duration of the tone being equal to or greater than the predetermined duration.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: March 25, 2014
    Assignee: Freeascale Semiconductor, Inc.
    Inventor: Dragos Ion
  • DTMF TONE MONITORING APPARATUS AND METHOD OF IDENTIFYING A DTMF TONE
    Publication number: 20100329367
    Abstract: A tone monitoring apparatus comprises a tone detector arranged to detect, when in use, a tone having a first duration equal to or greater than a predetermined duration. The tone detector is further arranged to select, when in use, a first signal path between a channel input and a channel output, the selection being in response to the first duration of the tone being equal to or greater than the predetermined duration.
    Type: Application
    Filed: March 14, 2008
    Publication date: December 30, 2010
    Applicant: FREESCALE SEMICONDUCTOR, INC.
    Inventor: Dragos Ion