Patents by Inventor Jinesh P. Nair

Jinesh P. Nair 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: 20200067846
    Abstract: A method to detect a packet includes: receiving an input sequence including preambles; detecting a transition from a noise period to a signal period in the input sequence; dynamically adjusting a gain of the input sequence in response to the signal period being initiated; and distinguishing an intended packet from other packets, among packets received in the preambles.
    Type: Application
    Filed: October 29, 2019
    Publication date: February 27, 2020
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ashutosh Deepak GORE, Sujit JOS, Jinesh P. NAIR, Chang Soon PARK, Kiran BYNAM, Young Jun HONG
  • Patent number: 10462063
    Abstract: A method to detect a packet includes: receiving an input sequence including preambles; detecting a transition from a noise period to a signal period in the input sequence; dynamically adjusting a gain of the input sequence in response to the signal period being initiated; and distinguishing an intended packet from other packets, among packets received in the preambles.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: October 29, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ashutosh Deepak Gore, Sujit Jos, Jinesh P. Nair, Chang Soon Park, Kiran Bynam, Young Jun Hong
  • Patent number: 10256933
    Abstract: A method and device for transmitting a preamble sequence is disclosed. A transmitter according to an embodiment may extract a first sequence for a non-coherent receiver and a second sequence for a coherent receiver, from ternary preamble sequences including elements ?1, 0 and 1, and map the first sequence and the second sequence to a preamble including a plurality of bits to generate a third sequence that the non-coherent receiver and coherent receiver support.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: April 9, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Soon Park, Young Jun Hong, Jinesh P Nair, Joon Seong Kang, Young Soo Kim, Sujit Jos, Manoj Choudhary
  • Patent number: 10091731
    Abstract: Disclosed is a method and apparatus to detect an intended packet by a sliding intermediate frequency (SIF) coherent ultra low power (ULP) wireless receiver. The method includes detecting a transition from a noise period to a signal period in a pair of input sequences received, dynamically adjusting a gain of the pair of input sequences in response to the signal period being initiated, distinguishing an intended packet from packets received in preambles included in the pair of input sequences, and compensating for a carrier frequency offset of the intended packet in the signal period.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: October 2, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ashutosh Deepak Gore, Sujit Jos, Jinesh P. Nair, Chang Soon Park, Kiran Bynam, Young Jun Hong
  • Patent number: 9887869
    Abstract: A method to compensate a carrier frequency offset (CFO) in a receiver is disclosed. The method includes receiving discrete time samples, obtaining a sample vector from the received discrete time samples, obtaining tentative CFO estimates based on the sample vector, selecting a CFO having a greatest compensation coefficient from the tentative CFO estimates, and compensating the CFO in the received discrete time samples.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: February 6, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sujit Jos, Kiran Bynam, Jinesh P Nair, Ashutosh Deepak Gore, Chandrashekhar Thejaswi Ps, Chang Soon Park, Young Jun Hong, Youngsoo Kim
  • Publication number: 20170324602
    Abstract: A method to compensate a carrier frequency offset (CFO) in a receiver is disclosed. The method includes receiving discrete time samples, obtaining a sample vector from the received discrete time samples, obtaining tentative CFO estimates based on the sample vector, selecting a CFO having a greatest compensation coefficient from the tentative CFO estimates, and compensating the CFO in the received discrete time samples.
    Type: Application
    Filed: April 14, 2017
    Publication date: November 9, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sujit JOS, Kiran BYNAM, Jinesh P NAIR, Ashutosh Deepak GORE, Chandrashekhar Thejaswi PS, Chang Soon PARK, Young Jun HONG, Youngsoo KIM
  • Patent number: 9800279
    Abstract: Examples provide a method of performing automatic gain control (AGC) in a wireless receiver, the method including computing, by an energy detection (ED) circuit, a variance in an output signal of an analog-to-digital converter (ADC), and activating, by the ED circuit, an AGC circuit to adjust a gain of at least one component in a radio frequency integrated chip (RFIC) in response to the variance exceeding a threshold. Examples also provide for a wireless receiver that implements such a method.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: October 24, 2017
    Assignee: Samsung ELectronics Co., Ltd.
    Inventors: Ashutosh Deepak Gore, Jinesh P. Nair, Chang Soon Park, Kiran Bynam, Seok Ju Yun, Young Jun Hong
  • Patent number: 9742600
    Abstract: Provided is a method of estimating a Direct Current (DC) offset in an Ultra-Low Power (ULP) receiver. The method includes receiving a signal from an output of an Analog to Digital Converter (ADC) in the ULP receiver. The signal includes a correlated variable DC component for at least one of an in-phase arm and a quadrature arm of the ULP receiver. The method also includes estimating a DC offset compensation parameter in a plurality of phases for a plurality of stages based on the received signal such that the estimating includes calculating the DC offset compensation parameter in a magnitude estimation phase for the plurality of stages and calculating the DC offset compensation parameter in a sign estimation phase for the plurality of stages.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: August 22, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jinesh P. Nair, Ashutosh Deepak Gore, Kiran Bynam, ChangSoon Park, Seokju Yun, Young-Jun Hong, Manoj Choudhary
  • Publication number: 20170230145
    Abstract: Disclosed is a method and apparatus to detect an intended packet by a sliding intermediate frequency (SIF) coherent ultra low power (ULP) wireless receiver. The method includes detecting a transition from a noise period to a signal period in a pair of input sequences received, dynamically adjusting a gain of the pair of input sequences in response to the signal period being initiated, distinguishing an intended packet from packets received in preambles included in the pair of input sequences, and compensating for a carrier frequency offset of the intended packet in the signal period.
    Type: Application
    Filed: February 3, 2017
    Publication date: August 10, 2017
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ashutosh Deepak GORE, Sujit JOS, Jinesh P. NAIR, Chang Soon PARK, Kiran BYNAM, Young Jun HONG
  • Publication number: 20170214628
    Abstract: A method to detect a packet includes: receiving an input sequence including preambles; detecting a transition from a noise period to a signal period in the input sequence; dynamically adjusting a gain of the input sequence in response to the signal period being initiated; and distinguishing an intended packet from other packets, among packets received in the preambles.
    Type: Application
    Filed: January 23, 2017
    Publication date: July 27, 2017
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ashutosh Deepak GORE, Sujit JOS, Jinesh P. NAIR, Chang Soon PARK, Kiran BYNAM, Young Jun HONG
  • Patent number: 9692588
    Abstract: A method of performing synchronization in a super regenerative receiver (SRR) includes setting a quench rate of the SRR to a value of 1.5 times a chip rate of an incoming signal, acquiring an expected preamble sequence of an arbitrary sample set among a plurality of possible sample sets, acquiring an expected start frame delimiter (SFD) sequence for all of the possible sample sets to achieve frame synchronization, computing respective correlation metrics for bits of the expected SFD sequence while the expected SFD sequence is acquired for all of the possible sample sets, calculating a decision metric based on the correlation metrics in response to an SFD sequence being detected for one or more of the possible sample sets, and identifying a best sample set for demodulating the incoming signal among all of the possible sample sets based on the decision metric to achieve pulse synchronization.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: June 27, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kiran Bynam, Sujit Jos, PS Chandrashekhar Thejaswi, ChangSoon Park, Jinesh P. Nair, Young-Jun Hong, Youngsoo Kim, Manoj Choudhary
  • Publication number: 20170012766
    Abstract: A method of performing synchronization in a super regenerative receiver (SRR) includes setting a quench rate of the SRR to a value of 1.5 times a chip rate of an incoming signal, acquiring an expected preamble sequence of an arbitrary sample set among a plurality of possible sample sets, acquiring an expected start frame delimiter (SFD) sequence for all of the possible sample sets to achieve frame synchronization, computing respective correlation metrics for bits of the expected SFD sequence while the expected SFD sequence is acquired for all of the possible sample sets, calculating a decision metric based on the correlation metrics in response to an SFD sequence being detected for one or more of the possible sample sets, and identifying a best sample set for demodulating the incoming signal among all of the possible sample sets based on the decision metric to achieve pulse synchronization.
    Type: Application
    Filed: July 7, 2016
    Publication date: January 12, 2017
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kiran BYNAM, Sujit JOS, PS Chandrashekhar THEJASWI, ChangSoon PARK, Jinesh P. NAIR, Young-Jun HONG, Youngsoo KIM, Manoj CHOUDHARY
  • Patent number: 9509367
    Abstract: A method of per-tone spreading in single carrier block transmissions, includes generating a block of modulated symbols, and performing the per-tone spreading on the block of the modulated symbols. Also, a transmitter configured to perform per-tone spreading in single carrier block transmissions, includes a modulator configured to generate a block of modulated symbols, and a spreader configured to perform the per-tone spreading on the block of the modulated symbols.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: November 29, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jinesh P. Nair, Sujit Jos, Preeti Nagvanshi, Arun Naniyat
  • Publication number: 20160323056
    Abstract: A method and device for transmitting a preamble sequence is disclosed. A transmitter according to an embodiment may extract a first sequence for a non-coherent receiver and a second sequence for a coherent receiver, from ternary preamble sequences including elements ?1, 0 and 1, and map the first sequence and the second sequence to a preamble including a plurality of bits to generate a third sequence that the non-coherent receiver and coherent receiver support.
    Type: Application
    Filed: October 30, 2014
    Publication date: November 3, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Soon PARK, Young Jun HONG, Jinesh P NAIR, Joon Seong KANG, Young Soo KIM, Sujit JOS, Manoj CHOUDHARY
  • Publication number: 20160241212
    Abstract: Examples provide a method of performing automatic gain control (AGC) in a wireless receiver, the method including computing, by an energy detection (ED) circuit, a variance in an output signal of an analog-to-digital converter (ADC), and activating, by the ED circuit, an AGC circuit to adjust a gain of at least one component in a radio frequency integrated chip (RFIC) in response to the variance exceeding a threshold. Examples also provide for a wireless receiver that implements such a method.
    Type: Application
    Filed: February 16, 2016
    Publication date: August 18, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ashutosh Deepak GORE, Jinesh P. NAIR, Chang Soon PARK, Kiran BYNAM, Seok Ju YUN, Young Jun HONG
  • Publication number: 20160234046
    Abstract: Provided is a method of estimating a Direct Current (DC) offset in an Ultra-Low Power (ULP) receiver. The method includes receiving a signal from an output of an Analog to Digital Converter (ADC) in the ULP receiver. The signal includes a correlated variable DC component for at least one of an in-phase arm and a quadrature arm of the ULP receiver. The method also includes estimating a DC offset compensation parameter in a plurality of phases for a plurality of stages based on the received signal such that the estimating includes calculating the DC offset compensation parameter in a magnitude estimation phase for the plurality of stages and calculating the DC offset compensation parameter in a sign estimation phase for the plurality of stages.
    Type: Application
    Filed: August 31, 2015
    Publication date: August 11, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jinesh P. NAIR, Ashutosh Deepak Gore, Kiran BYNAM, ChangSoon PARK, Seokju YUN, Young-Jun HONG, Manoj CHOUDHARY
  • Patent number: 9401740
    Abstract: A method of a transmitter, includes multiplying a data sequence by a first code, and multiplying a training sequence by a second code that is orthogonal to the first code. The method further includes adding the multiplied data and training sequences, and transmitting, to a receiver, the added data and training sequences.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: July 26, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jinesh P. Nair, Sujit Jos
  • Patent number: 9071340
    Abstract: Provided is a method of generating an orthogonal set in a quasi-synchronous spread spectrum system, the method including selecting a two-level autocorrelation sequence at a sequence selector, selecting a first indices set and a second indices set from the two-level autocorrelation sequence, and generating two quasi-orthogonal sets using the first indices set and the second indices set, at an orthogonal code generator.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: June 30, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sujit Jos, Jinesh P Nair
  • Patent number: 9054905
    Abstract: A method of timing synchronization in sub-band based ultra wideband systems, includes obtaining a coarse estimate of an offset in a time domain at a sub-sampled rate, and obtaining a fine estimate of the offset in an analog domain. The method further includes correcting a timing in the analog domain by transforming the fine estimate to an equivalent phase for the correcting.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: June 9, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Debarati Sen, Jinesh P. Nair, Sujit Jos, Arun Naniyat
  • Publication number: 20150063424
    Abstract: Provided is a method of generating an orthogonal set in a quasi-synchronous spread spectrum system, the method including selecting a two-level autocorrelation sequence at a sequence selector, selecting a first indices set and a second indices set from the two-level autocorrelation sequence, and generating two quasi-orthogonal sets using the first indices set and the second indices set, at an orthogonal code generator.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sujit JOS, Jinesh P. NAIR