Patents by Inventor Frank Alan Nardelli

Frank Alan Nardelli 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).

  • Full duplex telephone system employing automatic level control for improved digital signal processing of audio signals
    Patent number: 8229104
    Abstract: Audio processing systems, such as full duplex digital telephone systems, are provided in which analog automatic level control (ALC) circuitry is employed to automatically control and stabilize the microphone output audio signal levels to a constant level for optimal digital signal processing. For example, an audio communication device (10) includes a microphone (11) to generate an audio signal, an analog automatic level control (ALC) circuit (13), coupled to an output of the microphone (11), to control a level of the audio signal output from the microphone (11) and output a level-controlled audio signal, and a DSP (digital signal processing) circuit (14) to process the level-controlled audio signal output from the ALC circuit (13). The ALC (13) allows audio signals to be captured by the microphone (11) with wide dynamic range, while stabilizing the microphone output level within a reduced dynamic range compatible with the limited dynamic range of the DSP circuitry (14) for enhanced performance.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: July 24, 2012
    Assignee: Thomson Licensing
    Inventors: Wilhelm Ernst Riedl, Joel David Sawaski, Kent Joseph Nysewander, Hung Chi Lai, Frank Alan Nardelli
  • Full duplex telephone system employing automatic level control for improved digital signal processing of audio signals
    Publication number: 20110150209
    Abstract: Audio processing systems, such as full duplex digital telephone systems, are provided in which analog automatic level control (ALC) circuitry is employed to automatically control and stabilize the microphone output audio signal levels to a constant level for optimal digital signal processing. For example, an audio communication device (10) includes a microphone (11) to generate an audio signal, an analog automatic level control (ALC) circuit (13), coupled to an output of the microphone (11), to control a level of the audio signal output from the microphone (11) and output a level-controlled audio signal, and a DSP (digital signal processing) circuit (14) to process the level-controlled audio signal output from the ALC circuit (13). The ALC (13) allows audio signals to be captured by the microphone (11) with wide dynamic range, while stabilizing the microphone output level within a reduced dynamic range compatible with the limited dynamic range of the DSP circuitry (14) for enhanced performance.
    Type: Application
    Filed: June 24, 2008
    Publication date: June 23, 2011
    Inventors: Wilhelm Ernst Riedl, Joel David Sawaski, Kent Joseph Nysewander, Hung Chi Lai, Frank Alan Nardelli