Patents by Inventor Haim Primo

Haim Primo 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).

  • Patent number: 8948326
    Abstract: An electrical circuit includes a local oscillator configured to generate a first reference signal and a second reference signal having a predetermined phase shift with the first reference signal, an I-channel mixer configured to inject the first reference signal to an incoming signal and generate a first output, a compensation mixer configured to multiply the first output with a constant factor to generate a second output, a first low pass filter configured to approximately attenuate frequencies in the second output to generate a third output, and a first correcting filter configured to filter the third output to generate a fourth output. The first correcting filter is configured to reduce a channel impulse response mismatch between the first low pass filter and a second low pass filter, which is configured to attenuate frequencies in a Q-channel of the incoming signal. In specific embodiments, the phase shift includes 45°.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 3, 2015
    Assignee: Analog Devices Technology
    Inventors: Haim Primo, Yosef Stein
  • Publication number: 20140269985
    Abstract: Apparatus and methods for estimating a direct current offset in an upconverter are disclosed. Samples of a first signal are received. Values of a compensation signal are retrieved. For example, the compensation signal can be a component in a modified baseband signal, wherein the modified baseband signal is upconverted, downconverted, and filtered to generate the first signal. An estimate of a first DC offset induced by an upconverter is generated based at least partly on at least two selected samples of the first signal and corresponding values of the compensation signal.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: Analog Devices Technology
    Inventors: Haim Primo, Manish J. Manglani, Yosef Stein
  • Publication number: 20140270018
    Abstract: An electrical circuit includes a local oscillator configured to generate a first reference signal and a second reference signal having a predetermined phase shift with the first reference signal, an I-channel mixer configured to inject the first reference signal to an incoming signal and generate a first output, a compensation mixer configured to multiply the first output with a constant factor to generate a second output, a first low pass filter configured to approximately attenuate frequencies in the second output to generate a third output, and a first correcting filter configured to filter the third output to generate a fourth output. The first correcting filter is configured to reduce a channel impulse response mismatch between the first low pass filter and a second low pass filter, which is configured to attenuate frequencies in a Q-channel of the incoming signal. In specific embodiments, the phase shift includes 45°.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: ANALOG DEVICES TECHNOLOGY
    Inventors: Haim Primo, Yosef Stein
  • Patent number: 8761277
    Abstract: Channel estimation for high mobility OFDM channels is achieved by identifying a set of channel path delays from an OFDM symbol stream including carrier data, inter-channel interference noise and channel noise; determining the average channel impulse response for the identified set of channel path delays in each symbol; generating a path delay curvature for each channel path delay in each symbol based on stored average channel impulse responses for the identified channel path delays; estimating the carrier data in the symbols in the OFDM symbol stream in the presence of inter-channel interference noise and channel noise from the OFDM symbol steam and the average impulse responses for the identified channel path delays; reconstructing the inter-channel interference noise in response to the path delay curvature, the identified set of channel path delays and estimated carrier data to produce a symbol stream of carrier data and channel noise with suppressed inter-channel interference noise.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: June 24, 2014
    Assignee: Analog Devices, Inc.
    Inventors: Haim Primo, Yosef Stein, Wei An
  • Patent number: 8325790
    Abstract: The problem of inefficient channel impulse-response processing is addressed by processing different parts of a channel impulse response to accurately locate channel taps, and to generate more than one set of equalization coefficients. This allows the most-suited equalization coefficient to be selected based on a selection criterion.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: December 4, 2012
    Assignee: Analog Devices, Inc.
    Inventors: Haim Primo, Yosef Stein, Wei An
  • Patent number: 8321744
    Abstract: A channel adaptive iterative turbo decoder for computing with MAP decoders a set of branch metrics for a window of received data, computing the forward and reverse recursive path state metrics and computing from the forward and reverse recursive path state metrics the log likelihood ratio for 1 and 0 and interleaving the decision bits; and identifying those MAP decoder decision bits which are non-convergent, computing a set of branch metrics for the received data, computing from the forward and reverse recursive path state metrics the log likelihood ratio (LLR) for 1 and 0 for each non-converged decision bit and interleaving the non-convergent decision bits.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: November 27, 2012
    Assignee: Analog Devices, Inc.
    Inventors: Yosef Stein, Hazarathaiah Malepati, Haim Primo
  • Publication number: 20110182374
    Abstract: Channel estimation for high mobility OFDM channels is achieved by identifying a set of channel path delays from an OFDM symbol stream including carrier data, inter-channel interference noise and channel noise; determining the average channel impulse response for the identified set of channel path delays in each symbol; generating a path delay curvature for each channel path delay in each symbol based on stored average channel impulse responses for the identified channel path delays; estimating the carrier data in the symbols in the OFDM symbol stream in the presence of inter-channel interference noise and channel noise from the OFDM symbol steam and the average impulse responses for the identified channel path delays; reconstructing the inter-channel interference noise in response to the path delay curvature, the identified set of channel path delays and estimated carrier data to produce a symbol stream of carrier data and channel noise with suppressed inter-channel interference noise.
    Type: Application
    Filed: January 11, 2011
    Publication date: July 28, 2011
    Inventors: HAIM PRIMO, Yosef Stein, Wei An
  • Publication number: 20110182340
    Abstract: Channel estimation for high mobility OFDM channels is achieved by identifying a set of channel path delays from an OFDM symbol stream including carrier data, inter-channel interference noise and channel noise; determining the average channel impulse response for the identified set of channel path delays in each symbol; generating a path delay curvature for each channel path delay in each symbol based on stored average channel impulse responses for the identified channel path delays; estimating the carrier data in the symbols in the OFDM symbol stream in the presence of inter-channel interference noise and channel noise from the OFDM symbol steam and the average impulse responses for the identified channel path delays; reconstructing the inter-channel interference noise in response to the path delay curvature, the identified set of channel path delays and estimated carrier data to produce a symbol stream of carrier data and channel noise with suppressed inter-channel interference noise.
    Type: Application
    Filed: January 11, 2011
    Publication date: July 28, 2011
    Inventors: HAIM PRIMO, Yosef Stein, Wei An
  • Publication number: 20110103453
    Abstract: Channel estimation for high mobility OFDM channels is achieved by identifying a set of channel path delays from an OFDM symbol stream including carrier data, inter-channel interference noise and channel noise; determining the average channel impulse response for the identified set of channel path delays in each symbol; generating a path delay curvature for each channel path delay in each symbol based on stored average channel impulse responses for the identified channel path delays; estimating the carrier data in the symbols in the OFDM symbol stream in the presence of inter-channel interference noise and channel noise from the OFDM symbol steam and the average impulse responses for the identified channel path delays; reconstructing the inter-channel interference noise in response to the path delay curvature, the identified set of channel path delays and estimated carrier data to produce a symbol stream of carrier data and channel noise with suppressed inter-channel interference noise.
    Type: Application
    Filed: January 11, 2011
    Publication date: May 5, 2011
    Inventors: Haim Primo, Yosef Stein, Wei An
  • Publication number: 20110103450
    Abstract: Channel estimation for high mobility OFDM channels is achieved by identifying a set of channel path delays from an OFDM symbol stream including carrier data, inter-channel interference noise and channel noise; determining the average channel impulse response for the identified set of channel path delays in each symbol; generating a path delay curvature for each channel path delay in each symbol based on stored average channel impulse responses for the identified channel path delays; estimating the carrier data in the symbols in the OFDM symbol stream in the presence of inter-channel interference noise and channel noise from the OFDM symbol steam and the average impulse responses for the identified channel path delays; reconstructing the inter-channel interference noise in response to the path delay curvature, the identified set of channel path delays and estimated carrier data to produce a symbol stream of carrier data and channel noise with suppressed inter-channel interference noise.
    Type: Application
    Filed: January 11, 2011
    Publication date: May 5, 2011
    Inventors: Haim Primo, Yosef Stein, Wei An
  • Publication number: 20110026577
    Abstract: The problem of inefficient channel impulse-response processing is addressed by processing different parts of a channel impulse response to accurately locate channel taps, and to generate more than one set of equalization coefficients. This allows the most-suited equalization coefficient to be selected based on a selection criterion.
    Type: Application
    Filed: August 3, 2009
    Publication date: February 3, 2011
    Inventors: Haim Primo, Yosef Stein, Wei An
  • Publication number: 20110009194
    Abstract: A motion-capture system containing a base-unit and one or more mobile-articles The base-unit contains two or more acoustic transmitters, each transmitting an acoustic signal, an RF transmitter transmitting a synchronization signal, and an RF receiver for receive timing data transmitted from the mobile-articles. The synchronization signal and the acoustic signals are transmitted synchronously, and the timing data contains time measuring information associated with time delay at the mobile-article, between the synchronization signal and the acoustic signals.
    Type: Application
    Filed: December 4, 2008
    Publication date: January 13, 2011
    Inventors: Oz Gabai, Haim Primo
  • Patent number: 7830994
    Abstract: Channel estimation for high mobility OFDM channels is achieved by identifying a set of channel path delays from an OFDM symbol stream including carrier data, inter-channel interference noise and channel noise; determining the average channel impulse response for the identified set of channel path delays in each symbol; storing the average channel impulse responses for the identified channel path delays; generating a path delay curvature for each channel path delay in each symbol based on stored average channel impulse responses for the identified channel path delays; estimating the carrier data in the symbols in the OFDM symbol stream in the presence of inter-channel interference noise and channel noise from the OFDM symbol stream and the average impulse responses for the identified channel path delays; reconstructing the inter-channel interference noise in response to the path delay curvature, the identified set of channel path delays and estimated carrier data; and subtracting the reconstructed inter-channe
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: November 9, 2010
    Assignee: Analog Devices, Inc.
    Inventors: Haim Primo, Yosef Stein, Wei An
  • Patent number: 7693928
    Abstract: A Galois field linear transformer trellis system includes a Galois field linear transformer matrix; an input selection circuit for providing to the matrix a number of input bits in one or more trellis bit streams and a trellis state output of the matrix and a programmable storage device for configuring the matrix to perform a multi-cycle Galois field transform of the one or more trellis bit steams and trellis state output to provide a plurality of trellis output channel symbols and a new trellis state output in a single cycle.
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: April 6, 2010
    Assignee: Analog Devices, Inc.
    Inventors: Yosef Stein, Haim Primo
  • Publication number: 20100070819
    Abstract: A channel adaptive iterative turbo decoder for computing with MAP decoders a set of branch metrics for a window of received data, computing the forward and reverse recursive path state metrics and computing from the forward and reverse recursive path state metrics the log likelihood ratio for 1 and 0 and interleaving the decision bits; and identifying those MAP decoder decision bits which are non-convergent, computing a set of branch metrics for the received data, computing from the forward and reverse recursive path state metrics the log likelihood ratio (LLR) for 1 and 0 for each non-converged decision bit and interleaving the non-convergent decision bits.
    Type: Application
    Filed: September 16, 2008
    Publication date: March 18, 2010
    Inventors: Yosef Stein, Hazarathaiah Malepati, Haim Primo
  • Patent number: 7508937
    Abstract: A programmable data encryption engine for performing the cipher function of an advanced encryption standard (AES) algorithm includes a parallel look-up table system responsive in a first mode to a first data block for implementing an AES selection function and executing the multiplicative inverse in GF?1(28) and applying an affine over GF(2) transformation to obtain a subbyte transformation and in a second mode to the subbyte transformation to transform the subbyte transformation to obtain a shift row transformation, and a Galois field multiplier for transforming the shift row transformation to obtain a mix column transformation and add a round key resulting in an advanced encryption standard cipher function of the first data block.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: March 24, 2009
    Assignee: Analog Devices, Inc.
    Inventors: Yosef Stein, Haim Primo
  • Publication number: 20080095275
    Abstract: Channel estimation for high mobility OFDM channels is achieved by identifying a set of channel path delays from an OFDM symbol stream including carrier data, inter-channel interference noise and channel noise; determining the average channel impulse response for the identified set of channel path delays in each symbol; storing the average channel impulse responses for the identified channel path delays; generating a path delay curvature for each channel path delay in each symbol based on stored average channel impulse responses for the identified channel path delays; estimating the carrier data in the symbols in the OFDM symbol stream in the presence of inter-channel interference noise and channel noise from the OFDM symbol steam and the average impulse responses for the identified channel path delays; reconstructing the inter-channel interference noise in response to the path delay curvature, the identified set of channel path delays and estimated carrier data; and subtracting the reconstructed inter-channel
    Type: Application
    Filed: April 24, 2007
    Publication date: April 24, 2008
    Inventors: Haim Primo, Yosef Stein, Wei An
  • Publication number: 20080095256
    Abstract: Channel estimation for high mobility OFDM channels is achieved by identifying a set of channel path delays from an OFDM symbol stream including carrier data, inter-channel interference noise and channel noise; determining the average channel impulse response for the identified set of channel path delays in each symbol; generating a path delay curvature for each channel path delay in each symbol based on stored average channel impulse responses for the identified channel path delays; estimating the carrier data in the symbols in the OFDM symbol stream in the presence of inter-channel interference noise and channel noise from the OFDM symbol steam and the average impulse responses for the identified channel path delays; reconstructing the inter-channel interference noise in response to the path delay curvature, the identified set of channel path delays and estimated carrier data to produce a symbol stream of carrier data and channel noise with suppressed inter-channel interference noise.
    Type: Application
    Filed: October 30, 2007
    Publication date: April 24, 2008
    Inventors: Haim Primo, Yosef Stein, Wei An
  • Patent number: 7283628
    Abstract: A programmable data encryption engine for performing the cipher function of the data encryption standard (DES) algorithm includes a Galois field linear transformer system (GFLT) responsive to a first input data block to execute an E permutation to obtain an expanded data block and combine it with a key to obtain a second larger intermediate data block in one cycle; and further includes a parallel look-up table system for implementing the unique data encryption standard selection function(s) and for condensing the second larger intermediate data block to a third data block similar to the first input data block in a second cycle and submitting it to the Galois field linear transformer system to execute a second permutation in a third cycle resulting in a data encryption standard cipher function of the first input data block.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: October 16, 2007
    Assignee: Analog Devices, Inc.
    Inventors: Yosef Stein, Haim Primo
  • Patent number: 7269615
    Abstract: A reconfigurable input Galois field linear transformer system includes a Galois field linear transformer including a matrix of cells; a plurality of storage planes for storing control patterns representing a number of different functions; a storage plane selector circuit for selecting a storage plane representing a function for enabling the cells of the matrix which defines that function; and a reconfigurable input circuit for delivering input data to the enabled cells to apply that function to the input data.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: September 11, 2007
    Assignee: Analog Devices, Inc.
    Inventors: Yosef Stein, Haim Primo, Yaniv Sapir