Patents by Inventor Darrell Tinker

Darrell Tinker 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).

  • Patent number: 11393446
    Abstract: A method and apparatus for acoustic noise cancellation (“ANC”) in an audio headset. A combination of an analog feedforward path and at least one digital feedforward path enables the ANC facility to operate with the shorter delay inherent in analog electronics, but with the capability of better cancellation of reflections that digital feedforward allows.
    Type: Grant
    Filed: January 3, 2021
    Date of Patent: July 19, 2022
    Assignee: Tempo Semiconductor, Inc.
    Inventor: Darrell Tinker
  • Publication number: 20210210065
    Abstract: A method and apparatus for acoustic noise cancellation (“ANC”) in an audio headset. A combination of an analog feedforward path and at least one digital feedforward path enables the ANC facility to operate with the shorter delay inherent in analog electronics, but with the capability of better cancellation of reflections that digital feedforward allows.
    Type: Application
    Filed: January 3, 2021
    Publication date: July 8, 2021
    Inventor: Darrell Tinker
  • Publication number: 20190332355
    Abstract: A method and apparatus for use in a multiply-accumulate (“MAC”) facility to pre-round a result.
    Type: Application
    Filed: May 29, 2018
    Publication date: October 31, 2019
    Inventor: Darrell Tinker
  • Patent number: 8102959
    Abstract: A digital audio processing system includes an input to receive a phase component of a signal. The digital audio processing system includes symbol recognition logic to adjust a sample of the phase component using an offset value. The symbol recognition logic maps the adjusted sample to a nearest predetermined phase value of a plurality of predetermined phase values. The symbol recognition logic determines a symbol using a difference between the nearest predetermined phase value and a prior nearest predetermined phase value. The prior nearest predetermined phase value corresponds to a prior sample of the phase component of the signal. The offset value is based on a detected error of the prior sample of the phase component of the signal. The digital audio processing system also includes an output to provide a second signal that indicates the symbol.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: January 24, 2012
    Assignee: Sigmatel, Inc.
    Inventors: Jeffrey Donald Alderson, Darrell Tinker, K. Gozie Ifesinachukwu
  • Publication number: 20110194661
    Abstract: A digital audio processing system includes an input to receive a phase component of a signal. The digital audio processing system includes symbol recognition logic to adjust a sample of the phase component using an offset value. The symbol recognition logic maps the adjusted sample to a nearest predetermined phase value of a plurality of predetermined phase values. The symbol recognition logic determines a symbol using a difference between the nearest predetermined phase value and a prior nearest predetermined phase value. The prior nearest predetermined phase value corresponds to a prior sample of the phase component of the signal. The offset value is based on a detected error of the prior sample of the phase component of the signal. The digital audio processing system also includes an output to provide a second signal that indicates the symbol.
    Type: Application
    Filed: April 22, 2011
    Publication date: August 11, 2011
    Applicant: SIGMATEL, INC.
    Inventors: Jeffrey Donald Alderson, Darrell Tinker, K. Gozie Ifesinachukwu
  • Patent number: 7953196
    Abstract: A method includes receiving first data corresponding to a first signal sampled at a first sample rate, decimating the first data to provide a second signal sampled at a second sample rate, and recovering a pilot signal from the second signal. The method also includes evaluating the pilot signal to determine an error value, where the error value is based on a comparison of a sample of the pilot signal to zero. The method also includes adjusting the second sample rate based on the error value.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: May 31, 2011
    Assignee: Sigmatel, Inc.
    Inventors: Jeffrey Donald Alderson, Darrell Tinker, K. Gozie Ifesinachukwu
  • Publication number: 20110022649
    Abstract: A method includes receiving first data corresponding to a first signal sampled at a first sample rate, decimating the first data to provide a second signal sampled at a second sample rate, and recovering a pilot signal from the second signal. The method also includes evaluating the pilot signal to determine an error value, where the error value is based on a comparison of a sample of the pilot signal to zero. The method also includes adjusting the second sample rate based on the error value.
    Type: Application
    Filed: September 30, 2010
    Publication date: January 27, 2011
    Applicant: SIGMATEL, INC.
    Inventors: Jeffrey Donald Alderson, Darrell Tinker, K. Gozie Ifesinachukwu
  • Patent number: 7831001
    Abstract: A digital audio processing system and method is disclosed. In an embodiment, the digital audio processing system can include a phase detector to sample an input signal and provide an output to adjust a decimation rate of an input signal. In another embodiment, the digital audio processing system can include symbol recognition logic to determine a symbol using a difference between a nearest predetermined phase value to a sample and a nearest predetermined phase value to a prior sample.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: November 9, 2010
    Assignee: Sigmatel, Inc.
    Inventors: Jeffrey Donald Alderson, Darrell Tinker, K. Gozie Ifesinachukwu
  • Patent number: 7792220
    Abstract: A demodulator system and method is disclosed. In an embodiment, the demodulator system can include a Coordinate Rotation Digital Computer (CORDIC) mixer to mix a first signal substantially to baseband using a first input frequency and to mix a second signal substantially to baseband using a second input frequency. In another embodiment, the demodulator system can include a phase detector to receive a pilot signal and to generate a control signal to adjust a decimation rate based on the pilot signal. In another embodiment, the demodulator system can include a symbol decoder to determine a symbol from a phase signal.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: September 7, 2010
    Assignee: Sigmatel, Inc.
    Inventors: Jeffrey Donald Alderson, Darrell Tinker, K. Gozie Ifesinachukwu
  • Publication number: 20080144743
    Abstract: A demodulator system and method is disclosed. In an embodiment, the demodulator system can include a Coordinate Rotation Digital Computer (CORDIC) mixer to mix a first signal substantially to baseband using a first input frequency and to mix a second signal substantially to baseband using a second input frequency. In another embodiment, the demodulator system can include a phase detector to receive a pilot signal and to generate a control signal to adjust a decimation rate based on the pilot signal. In another embodiment, the demodulator system can include a symbol decoder to determine a symbol from a phase signal.
    Type: Application
    Filed: December 19, 2006
    Publication date: June 19, 2008
    Applicant: SIGMATEL, INC.
    Inventors: Jeffrey Donald Alderson, Darrell Tinker, K. Gozie Ifesinachukwu
  • Publication number: 20080147762
    Abstract: A digital audio processing system and method is disclosed. In an embodiment, the digital audio processing system can include a phase detector to sample an input signal and provide an output to adjust a decimation rate of an input signal. In another embodiment, the digital audio processing system can include symbol recognition logic to determine a symbol using a difference between a nearest predetermined phase value to a sample and a nearest predetermined phase value to a prior sample.
    Type: Application
    Filed: December 19, 2006
    Publication date: June 19, 2008
    Applicant: SIGMATEL, INC.
    Inventors: Jeffrey Donald Alderson, Darrell Tinker, K. Gozie Ifesinachukwu
  • Publication number: 20070223640
    Abstract: A system and method for determining a clock rate of a digital phase lock loop is disclosed. The system includes a first input to receive a first clock signal, an output to provide a second clock signal, and a dividerless initial clock rate determination module to calculate an initial clock rate value based on an reciprocal of a pulse length of the first clock signal. In a particular embodiment, the dividerless initial clock rate determination module performs a piecewise linear operation to calculate the initial clock rate value.
    Type: Application
    Filed: March 22, 2006
    Publication date: September 27, 2007
    Applicant: SigmaTel, Inc.
    Inventor: Darrell Tinker
  • Publication number: 20070200642
    Abstract: A system and method for using one or more clock signals is disclosed. The system includes a clock translator that has a first input to receive a first reference clock signal and a second input to receive a second reference clock signal. The clock translator also includes an output to provide a bit rate clock signal having a clock frequency in a first ratio with respect to the frequency of the first reference clock but having a resolution based on at least a portion of the second reference clock signal. The second reference clock has a faster rate than the first reference clock.
    Type: Application
    Filed: February 16, 2006
    Publication date: August 30, 2007
    Applicant: SigmaTel, Inc.
    Inventor: Darrell Tinker
  • Publication number: 20070192392
    Abstract: A system and method for decimating a digital signal is disclosed. The system includes an input to receive digital data, a control input to receive a desired decimation rate, and an integrator stage responsive to the input. The system also includes a variable rate down sampling module responsive to the integrator stage and a differentiator stage responsive to the variable rate down sampling module. The down sampling module has a decimation rate that is dynamically adjustable based on the desired decimation rate.
    Type: Application
    Filed: February 16, 2006
    Publication date: August 16, 2007
    Applicant: Sigma Tel, Inc.
    Inventor: Darrell Tinker