Patents by Inventor Raghavendra Raichur

Raghavendra Raichur 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).

  • Method to invoke channel decoder early to decrease the acquisition time in demodulators
    Patent number: 8654873
    Abstract: In one embodiment, a Television (TV) receiver to perform a method of synchronizing a demodulator at a Viterbi decode input in the TV receiver using one or more bit de-interleaved even and odd Orthogonal Frequency Division Multiplexing (OFDM) symbols is provided. The method includes (i) performing a Viterbi decoding on the bit de-interleaved even and odd OFDM symbols when a frame boundary does not exist for the bit de-interleaved even and odd OFDM symbols, (ii) performing a convolutional encoding on an decoded data output of the Viterbi decoding, (iii) determining whether an output of the convolutional encoding of the bit de-interleaved OFDM symbols matches an input at a Viterbi decode, and (iv) determining whether the output of the convolutional encoding of the bit de-interleaved even and odd OFDM symbols matches with a SYNC pattern or a SYNC? pattern to obtain a RS packet align boundary.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: February 18, 2014
    Inventors: Gururaj Padaki, Sunil Hosur Rames, Rakesh A Joshi, Raghavendra Raichur, Rajendra Hegde
  • METHOD TO INVOKE CHANNEL DECODER EARLY TO DECREASE THE ACQUISITION TIME IN DEMODULATORS
    Publication number: 20120249889
    Abstract: In one embodiment, a Television (TV) receiver to perform a method of synchronizing a demodulator at a Viterbi decode input in the TV receiver using one or more bit de-interleaved even and odd Orthogonal Frequency Division Multiplexing (OFDM) symbols is provided. The method includes (i) performing a Viterbi decoding on the bit de-interleaved even and odd OFDM symbols when a frame boundary does not exist for the bit de-interleaved even and odd OFDM symbols, (ii) performing a convolutional encoding on an decoded data output of the Viterbi decoding, (iii) determining whether an output of the convolutional encoding of the bit de-interleaved OFDM symbols matches an input at a Viterbi decode, and (iv) determining whether the output of the convolutional encoding of the bit de-interleaved even and odd OFDM symbols matches with a SYNC pattern or a SYNC? pattern to obtain a RS packet align boundary.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 4, 2012
    Applicant: SAANKHYA LABS PRIVATE LIMITED
    Inventors: Gururaj Padaki, Sunil Hosur Ramesh, Rakesh A. Joshi, Raghavendra Raichur, Rajendra Hegde