Patents by Inventor Prasad Shamain

Prasad Shamain 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).

  • Systems and method for frequency based satellite channel scanning
    Patent number: 8554203
    Abstract: A satellite signal demodulator is configured to use frequency-based channel scanning to sense the presence of a channel and to obtain the frequency profile of the channel. Once the channel is identified and the profile is obtained, channel extraction is used to identify the frequency parameters for a given channel. A coarse parameter estimation is performed to obtain a coarse estimate of the symbol rate (SR) and the center frequency (fc) of the channel. The coarse estimation can then be followed by a fine estimation of the symbol rate and center frequency (fc), using a bit tracking loop (BTL) lock indicator.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: October 8, 2013
    Assignee: Conexant Systems, Inc.
    Inventors: Prasad Shamain, Chi-ping Nee, Gadi Kalit
  • SYSTEMS AND METHOD FOR FREQUENCY BASED SATELLITE CHANNEL SCANNING
    Publication number: 20120329383
    Abstract: A satellite signal demodulator is configured to use frequency-based channel scanning to sense the presence of a channel and to obtain the frequency profile of the channel. Once the channel is identified and the profile is obtained, channel extraction is used to identify the frequency parameters for a given channel. A coarse parameter estimation is performed to obtain a coarse estimate of the symbol rate (SR) and the center frequency (fc) of the channel. The coarse estimation can then be followed by a fine estimation of the symbol rate and center frequency (fc), using a bit tracking loop (BTL) lock indicator.
    Type: Application
    Filed: September 7, 2012
    Publication date: December 27, 2012
    Applicant: CONEXANT SYSTEMS, INC.
    Inventors: Prasad Shamain, Chi-Ping Nee, Gadi Kalit
  • Systems and method for frequency based satellite channel scanning
    Patent number: 8270896
    Abstract: A satellite signal demodulator is configured to use frequency-based channel scanning to sense the presence of a channel and to obtain the frequency profile of the channel. Once the channel is identified and the profile is obtained, channel extraction is used to identify the frequency parameters for a given channel. A coarse parameter estimation is performed to obtain a coarse estimate of the symbol rate (SR) and the center frequency (fc) of the channel. The coarse estimation can then be followed by a fine estimation of the symbol rate and center frequency (fc), using a bit tracking loop (BTL) lock indicator.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: September 18, 2012
    Assignee: Conexant Systems, Inc.
    Inventors: Prasad Shamain, Chi-Ping Nee, Gadi Kalit
  • SYSTEMS AND METHOD FOR FREQUENCY BASED SATELLITE CHANNEL SCANNING
    Publication number: 20100003915
    Abstract: A satellite signal demodulator is configured to use frequency-based channel scanning to sense the presence of a channel and to obtain the frequency profile of the channel. Once the channel is identified and the profile is obtained, channel extraction is used to identify the frequency parameters for a given channel. A coarse parameter estimation is performed to obtain a coarse estimate of the symbol rate (SR) and the center frequency (fc) of the channel. The coarse estimation can then be followed by a fine estimation of the symbol rate and center frequency (fc), using a bit tracking loop (BTL) lock indicator.
    Type: Application
    Filed: May 1, 2006
    Publication date: January 7, 2010
    Applicant: CONEXANT SYSTEMS, INC.
    Inventors: Prasad Shamain, Chi-ping Nee, Gadi Kalit