Patents by Inventor Nabar U. Rohit

Nabar U. Rohit 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).

  • System and method of selecting a data detection technique for a multiple-input multiple-output (MIMO) system
    Patent number: 8411786
    Abstract: One or more communications parameters associated with a multiple input, multiple output (MIMO) signal transmitted by a transmitter are identified. The one or more communications parameters include one or more of (i) a number of receive antennas via which the MIMO signal is received, (ii) a number of spatial streams in the MIMO signal, and (iii) a signal to noise ratio (SNR) corresponding to the MIMO signal. A particular data detection technique of a plurality of data detection techniques employed by a receiver is selected in accordance with at least one of the one or more communications parameters.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: April 2, 2013
    Assignee: Marvell International Ltd.
    Inventors: Leilei Song, Nabar U. Rohit, Hui-Ling Lou, Kedar Shirali
  • Power amplifier adjustment for transmit beamforming in multi-antenna wireless systems
    Patent number: 8165543
    Abstract: One or more beamsteering matrices are applied to a plurality of signals to be transmitted via multiple antennas. The plurality of signals are provided to a plurality of power amplifiers coupled to the multiple antennas after applying the one or more beamsteering matrices to the plurality of signals. Signal energies are determined for the plurality of signals provided to the plurality of power amplifiers, and output power levels of the plurality of power amplifiers are adjusted based on the determined signal energies.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: April 24, 2012
    Assignee: Marvell World Trade Ltd.
    Inventors: Nabar U. Rohit, Hongyuan Zhang