Patents by Inventor Sundar Rajan KRISHNAMURTHY

Sundar Rajan KRISHNAMURTHY 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).

  • Publication number: 20170134074
    Abstract: A multiple input and multiple output device includes a first input switch, a second input switch, a first set of analog interference cancellation (AIC) circuits, and a second set of AIC circuits. The first input switch is configured to select one of a first transmit input of first transmit inputs or a first transmit input of second transmit inputs. The second input switch is configured to select one of a second transmit input of the first transmit inputs or a second transmit input of the second transmit inputs. The first set of AIC circuits and the second set of AIC circuits are coupled to the first input switch and to the second input switch. The first set of AIC circuits is configured to output a first cancellation signal. The second set of AIC circuits is configured to output a second cancellation signal.
    Type: Application
    Filed: October 12, 2016
    Publication date: May 11, 2017
    Inventors: Ozgur Dural, Insoo Hwang, Won-ick Lee, Samir Soliman, Mark Maggenti, Kaushik Chakraborty, Sundar Rajan Krishnamurthy
  • Patent number: 8442103
    Abstract: A method and transceiver for processing a signal in a communication system are provided. The method includes identifying a Channel Impulse Response (CIR) of the signal as of minimum phase, maximum phase, or mixed phase, processing the signal without performing prefiltering when the CIR is identified as minimum phase and performing all pass prefiltering of the signal when the CIR is identified as maximum phase or mixed phase. The transceiver includes a computation block and an all pass filter. The computation block identifies CIR of a signal as minimum phase, maximum phase, or mixed phase, performs root identification when the CIR of the signal is identified to be mixed phase and enables all pass filtering of the signal when the CIR of the signal is identified as mixed phase or maximum phase. The all pass filter transforms the signal to its minimum phase equivalent.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: May 14, 2013
    Assignee: Samsung Electronics Co., Ltd
    Inventor: Sundar Rajan Krishnamurthy
  • Publication number: 20100034241
    Abstract: A method and transceiver for processing a signal in a communication system are provided. The method includes identifying a Channel Impulse Response (CIR) of the signal as of minimum phase, maximum phase, or mixed phase, processing the signal without performing prefiltering when the CIR is identified as minimum phase and performing all pass prefiltering of the signal when the CIR is identified as maximum phase or mixed phase. The transceiver includes a computation block and an all pass filter. The computation block identifies CIR of a signal as minimum phase, maximum phase, or mixed phase, performs root identification when the CIR of the signal is identified to be mixed phase and enables all pass filtering of the signal when the CIR of the signal is identified as mixed phase or maximum phase. The all pass filter transforms the signal to its minimum phase equivalent.
    Type: Application
    Filed: August 10, 2009
    Publication date: February 11, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Sundar Rajan KRISHNAMURTHY