Patents by Inventor Anish Narendra Shah

Anish Narendra Shah 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: 9178550
    Abstract: Methods and systems for mitigating interference or estimating a covariance matrix in a communication system are disclosed. A method of demodulating a received signal in a communication system can include receiving a first plurality of waveforms, estimating a covariance matrix based on the first plurality of waveforms, determining a spatial filter based on the estimated covariance matrix, receiving a second plurality of waveforms, generating at least one filtered waveform by applying the spatial filter to the second plurality of waveforms, and demodulating the at least one filtered waveform.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: November 3, 2015
    Assignee: Silvus Technologies, Inc.
    Inventors: Anish Narendra Shah, Weijun Zhu, Babak Daneshrad
  • Patent number: 8948312
    Abstract: Certain disclosed embodiments pertain to suppressing interference in a wireless communication system. For example, a method of suppressing interference can include receiving one or more first signals including components from a plurality of sub-channels. Each of the first signals can be converted into a respective plurality of first sub-band frequency components. A respective spatial filter can be determined for each frequency sub-band using one or more corresponding first sub-band components for each respective spatial filter. One or more second signals including components from the plurality of sub-channels can be received. Each of the second signals can be converted into a respective plurality of second sub-band frequency components. A corresponding plurality of filtered sub-band components can be generated by applying the respective spatial filters to the corresponding second sub-band components for each of the second signals.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: February 3, 2015
    Assignee: Silvus Technologies, Inc.
    Inventors: Babak Daneshrad, Jean-Francois Frigon, Anish Narendra Shah, Weijun Zhu
  • Publication number: 20140369449
    Abstract: Methods and systems for mitigating interference or estimating a covariance matrix in a communication system are disclosed. In some embodiments, a method of demodulating a received signal in a communication system includes receiving a first plurality of waveforms, estimating a covariance matrix based on the first plurality of waveforms, determining a spatial filter based on the estimated covariance matrix, receiving a second plurality of waveforms, generating at least one filtered waveform by applying the spatial filter to the second plurality of waveforms, and demodulating the at least one filtered waveform.
    Type: Application
    Filed: May 22, 2014
    Publication date: December 18, 2014
    Applicant: Silvus Technologies, Inc.
    Inventors: Anish Narendra Shah, Weijun Zhu, Babak Daneshrad
  • Patent number: 8737501
    Abstract: Methods and systems for mitigating interference or estimating a covariance matrix in a communication system are disclosed. In some embodiments, a method of demodulating a received signal in a communication system includes receiving a first plurality of waveforms, estimating a covariance matrix based on the first plurality of waveforms, determining a spatial filter based on the estimated covariance matrix, receiving a second plurality of waveforms, generating at least one filtered waveform by applying the spatial filter to the second plurality of waveforms, and demodulating the at least one filtered waveform.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: May 27, 2014
    Assignee: Silvus Technologies, Inc.
    Inventors: Anish Narendra Shah, Weijun Zhu, Babak Daneshrad
  • Publication number: 20140051378
    Abstract: Certain disclosed embodiments pertain to suppressing interference in a wireless communication system. For example, a method of suppressing interference can include receiving one or more first signals including components from a plurality of sub-channels. Each of the first signals can be converted into a respective plurality of first sub-band frequency components. A respective spatial filter can be determined for each frequency sub-band using one or more corresponding first sub-band components for each respective spatial filter. One or more second signals including components from the plurality of sub-channels can be received. Each of the second signals can be converted into a respective plurality of second sub-band frequency components. A corresponding plurality of filtered sub-band components can be generated by applying the respective spatial filters to the corresponding second sub-band components for each of the second signals.
    Type: Application
    Filed: July 12, 2013
    Publication date: February 20, 2014
    Inventors: Babak Daneshrad, Jean-Francois Frigon, Anish Narendra Shah, Weijun Zhu
  • Patent number: 8488724
    Abstract: Certain disclosed embodiments pertain to suppressing interference in a wireless communication system. For example, a method of suppressing interference can include receiving one or more first signals including components from a plurality of sub-channels. Each of the first signals can be converted into a respective plurality of first sub-band frequency components. A respective spatial filter can be determined for each frequency sub-band using one or more corresponding first sub-band components for each respective spatial filter. One or more second signals including components from the plurality of sub-channels can be received. Each of the second signals can be converted into a respective plurality of second sub-band frequency components. A corresponding plurality of filtered sub-band components can be generated by applying the respective spatial filters to the corresponding second sub-band components for each of the second signals.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: July 16, 2013
    Assignee: Silvus Technologies, Inc.
    Inventors: Babak Daneshrad, Jean-Francois (JF) Frigon, Anish Narendra Shah, Weijun Zhu
  • Publication number: 20100303182
    Abstract: Certain disclosed embodiments pertain to suppressing interference in a wireless communication system. For example, a method of suppressing interference can include receiving one or more first signals including components from a plurality of sub-channels. Each of the first signals can be converted into a respective plurality of first sub-band frequency components. A respective spatial filter can be determined for each frequency sub-band using one or more corresponding first sub-band components for each respective spatial filter. One or more second signals including components from the plurality of sub-channels can be received. Each of the second signals can be converted into a respective plurality of second sub-band frequency components. A corresponding plurality of filtered sub-band components can be generated by applying the respective spatial filters to the corresponding second sub-band components for each of the second signals.
    Type: Application
    Filed: May 14, 2010
    Publication date: December 2, 2010
    Inventors: Babak Daneshrad, Jean-Francois (JF) Frigon, Anish Narendra Shah, Weijun Zhu
  • Publication number: 20090310724
    Abstract: Methods and systems for mitigating interference or estimating a covariance matrix in a communication system are disclosed. In some embodiments, a method of demodulating a received signal in a communication system includes receiving a first plurality of waveforms, estimating a covariance matrix based on the first plurality of waveforms, determining a spatial filter based on the estimated covariance matrix, receiving a second plurality of waveforms, generating at least one filtered waveform by applying the spatial filter to the second plurality of waveforms, and demodulating the at least one filtered waveform.
    Type: Application
    Filed: December 11, 2008
    Publication date: December 17, 2009
    Applicant: Silvus Technologies, Inc.
    Inventors: Anish Narendra Shah, Weijun Zhu, Babak Daneshrad
  • Publication number: 20090312043
    Abstract: Methods and systems for mitigating interference or estimating a covariance matrix in a communication system are disclosed. In some embodiments, a method of demodulating a received signal in a communication system includes receiving a first plurality of waveforms, estimating a covariance matrix based on the first plurality of waveforms, determining a spatial filter based on the estimated covariance matrix, receiving a second plurality of waveforms, generating at least one filtered waveform by applying the spatial filter to the second plurality of waveforms, and demodulating the at least one filtered waveform.
    Type: Application
    Filed: December 11, 2008
    Publication date: December 17, 2009
    Applicant: Silvus Technologies, Inc.
    Inventors: Anish Narendra Shah, Weijun Zhu, Babak Daneshrad