Patents by Inventor Henry Stephen Eilts

Henry Stephen Eilts 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).

  • Computationally efficient system and method for channel estimation
    Patent number: 7324606
    Abstract: A system and method is provided for determining a channel estimate utilizing partial channel estimates to provide an aggregated channel estimate. A partial channel estimate is determined upon receipt of a data burst, such that a different subset of the channel estimate is updated every data burst. As a result, Fast Fourier Transform computations can be reduced by determining a portion of the channel estimate each data burst as opposed to determining a full channel estimate every data burst.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: January 29, 2008
    Inventors: Henry Stephen Eilts, Srinath Hosur, David Patrick Magee, Dennis Rauschmayer
  • Phase estimation and compensation in orthogonal frequency division multiplex (OFDM) systems
    Patent number: 7180965
    Abstract: Methods are presented for phase estimation and compensation in Orthogonal Frequency Division Multiplex systems. The methods include the step of extracting training tones from a received digitized data burst. Some of the methods further include the steps of determining a channel impulse response based on the extracted tones; estimating phase shift caused by common phase noise; correcting the impulse response and performing a Fast Fourier transform to provide a channel estimate. Some of the methods include estimating the phase shift caused by common phase noise before an average impulse response is updated with the current impulse impulse. Some of the methods include frequency shifting the spectrum of the channel impulse response and providing partial estimates.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: February 20, 2007
    Assignee: Texas Instruments Incorporated
    Inventors: Henry Stephen Eilts, Srinath Hosur, David Patrick Magee
  • Phase estimation and compensation in Orthogonal Frequency Division Multiplex (OFDM) systems
    Publication number: 20030108127
    Abstract: Methods are presented for phase estimation and compensation in Orthogonal Frequency Division Multiplex systems. The methods include the step of extracting training tones from a received digitized data burst. Some of the methods further include the steps of determining a channel impulse response based on the extracted tones; estimating phase shift caused by common phase noise; correcting the impulse response and performing a Fast Fourier transform to provide a channel estimate. Some of the methods include estimating the phase shift caused by common phase noise before an average impulse response is updated with the current impulse impulse. Some of the methods include frequency shifting the spectrum of the channel impulse response and providing partial estimates.
    Type: Application
    Filed: June 14, 2002
    Publication date: June 12, 2003
    Inventors: Henry Stephen Eilts, Srinath Hosur, David Patrick Magee
  • Computationally efficient system and method for channel estimation
    Publication number: 20030081695
    Abstract: A system and method is provided for determining a channel estimate utilizing partial channel estimates to provide an aggregated channel estimate. A partial channel estimate is determined upon receipt of a data burst, such that a different subset of the channel estimate is updated every data burst. As a result, Fast Fourier Transform computations can be reduced by determining a portion of the channel estimate each data burst as opposed to determining a full channel estimate every data burst.
    Type: Application
    Filed: October 31, 2001
    Publication date: May 1, 2003
    Inventors: Henry Stephen Eilts, Srinath Hosur, David Patrick Magee, Dennis Rauschmayer