Patents by Inventor Ehud Nir

Ehud Nir 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: 12294474
    Abstract: Technologies for signaling compression inside a partially unrolled decision feedback equalizer (DFE) are described. The signaling compression associated with partially unrolled DFE results in multiplexers selecting a 1-bit output value from one of two 1-bit input values, which are decoding the actual multi-bit candidate levels and transforming the selected 1-bit output value to a multi-bit sliced value by adding to it a pointer value of a pulse-amplitude modulation (PAM) level. The signaling compression reduces the power and area of an N-tap DFE, where N is a positive integer.
    Type: Grant
    Filed: May 3, 2023
    Date of Patent: May 6, 2025
    Assignee: Cadence Design Systems, Inc.
    Inventor: Ehud Nir
  • Patent number: 12237951
    Abstract: Methods and systems for equalizing signals are disclosed. In an example, a method for equalizing a digital signal at an equalizer, comprises: receiving, at the equalizer, a plurality of samples of the signal in a plurality of unit intervals (UIs) of a channel response of the digital signal, the plurality of samples comprising a first plurality of samples of a primary response and a second plurality of samples of one or more reflection responses; equalizing, by the equalizer, the first plurality of samples using a first set bitwidth; equalizing the second plurality of samples using one or more further set bitwidths, wherein the first set bitwidth is greater than each of the one or more further set bitwidths; and generating, by the equalizer, an equalized digital signal.
    Type: Grant
    Filed: July 10, 2023
    Date of Patent: February 25, 2025
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ehud Nir, Yanggao Qiu
  • Publication number: 20230362041
    Abstract: Technologies for signaling compression inside a partially unrolled decision feedback equalizer (DFE) are described. The signaling compression associated with partially unrolled DFE results in multiplexers selecting a 1-bit output value from one of two 1-bit input values, which are decoding the actual multi-bit candidate levels and transforming the selected 1-bit output value to a multi-bit sliced value by adding to it a pointer value of a pulse-amplitude modulation (PAM) level. The signaling compression reduces the power and area of an N-tap DFE, where N is a positive integer.
    Type: Application
    Filed: May 3, 2023
    Publication date: November 9, 2023
    Inventor: Ehud Nir
  • Publication number: 20230353429
    Abstract: Methods and systems for equalizing signals are disclosed. In an example, a method for equalizing a digital signal at an equalizer, comprises: receiving, at the equalizer, a plurality of samples of the signal in a plurality of unit intervals (UIs) of a channel response of the digital signal, the plurality of samples comprising a first plurality of samples of a primary response and a second plurality of samples of one or more reflection responses; equalizing, by the equalizer, the first plurality of samples using a first set bitwidth; equalizing the second plurality of samples using one or more further set bitwidths, wherein the first set bitwidth is greater than each of the one or more further set bitwidths; and generating, by the equalizer, an equalized digital signal.
    Type: Application
    Filed: July 10, 2023
    Publication date: November 2, 2023
    Inventors: Ehud NIR, Yanggao QIU
  • Patent number: 11245407
    Abstract: The disclosed systems, structures, and methods are directed to a low jitter phase-lock loop (PLL) based frequency synthesizer, comprising a first frequency divider, a phase frequency detector, a charge pump, a low-pass filter, a voltage control oscillator (VCO), a phase interpolator communicatively coupled in a feedback path between the VCO and the phase frequency detector, wherein the phase interpolator comprises a quadrature generator, an input conditioner, a phase rotator, a current mode logic (CML), and a second frequency divider communicatively coupled in the feedback path between the phase interpolator and the phase frequency detector.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: February 8, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Dmitry Petrov, Ehud Nir
  • Publication number: 20220014205
    Abstract: The disclosed systems, structures, and methods are directed to a low jitter phase-lock loop (PLL) based frequency synthesizer, comprising a first frequency divider, a phase frequency detector, a charge pump, a low-pass filter, a voltage control oscillator (VCO), a phase interpolator communicatively coupled in a feedback path between the VCO and the phase frequency detector, wherein the phase interpolator comprises a quadrature generator, an input conditioner, a phase rotator, a current mode logic (CML), and a second frequency divider communicatively coupled in the feedback path between the phase interpolator and the phase frequency detector.
    Type: Application
    Filed: July 10, 2020
    Publication date: January 13, 2022
    Inventors: Dmitry PETROV, Ehud NIR
  • Patent number: 10693589
    Abstract: Devices and methods are provided for performing a high-frequency jitter self stress check on a receiver to assist with optimization. High-frequency jitter is injected into a clock signal recovered from a received data signal and used to sample the data signal. The injected jitter increases the bit error rate (BER), making BER a more useful and quicker optimization metric in applications using low-noise communication links. Error correction is used to maintain acceptable output BER while the self stress check is in progress.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: June 23, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ehud Nir, Henry Wong, Petar Ivanov Krotnev
  • Publication number: 20190386773
    Abstract: Devices and methods are provided for performing a high-frequency jitter self stress check on a receiver to assist with optimization. High-frequency jitter is injected into a clock signal recovered from a received data signal and used to sample the data signal. The injected jitter increases the bit error rate (BER), making BER a more useful and quicker optimization metric in applications using low-noise communication links. Error correction is used to maintain acceptable output BER while the self stress check is in progress.
    Type: Application
    Filed: June 18, 2018
    Publication date: December 19, 2019
    Inventors: Ehud Nir, Henry Wong, Petar Ivanov Krotnev
  • Patent number: 8472271
    Abstract: Systems and methods for determining optimal memory device precharge voltages are provided herein. In addition, systems and methods for providing localized sense amplification and circuit assist circuitry are described herein. Embodiments provide for determining precharge multipliers that may be used to determine the optimal precharge voltage based on a precharge source voltage. According to embodiments, the precharge source voltage may be Vdd or Vcs. Optimizing the precharge voltage maximizes memory device performance and functional characteristics, including, but not limited to, stability, efficiency, power, writability, and reliability.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: June 25, 2013
    Assignee: International Business Machines Corporation
    Inventors: James W. Dawson, Rajiv V. Joshi, Noam Jungmann, Elazar Kachir, Rouwaida N. Kanj, Ehud Nir, Donald W. Plass
  • Publication number: 20120213023
    Abstract: Systems and methods for determining optimal memory device precharge voltages are provided herein. In addition, systems and methods for providing localized sense amplification and circuit assist circuitry are described herein. Embodiments provide for determining precharge multipliers that may be used to determine the optimal precharge voltage based on a precharge source voltage. According to embodiments, the precharge source voltage may be Vdd or Vcs. Optimizing the precharge voltage maximizes memory device performance and functional characteristics, including, but not limited to, stability, efficiency, power, writability, and reliability.
    Type: Application
    Filed: February 18, 2011
    Publication date: August 23, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: James W. Dawson, Rajiv V. Joshi, Noam Jungmann, Elazar Kachir, Rouwaida N. Kanj, Ehud Nir, Donald W. Plass
  • Patent number: 8131752
    Abstract: A system receives a document including a plurality of items. The system then breaks the document into a plurality of subdocuments corresponding to the plurality of items and indexes the plurality of subdocuments.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: March 6, 2012
    Assignee: eBay Inc.
    Inventors: Ehud Nir, Amir Ashkenazi
  • Publication number: 20080114786
    Abstract: A system receives a document including a plurality of items. The system then breaks the document into a plurality of subdocuments corresponding to the plurality of items and indexes the plurality of subdocuments.
    Type: Application
    Filed: November 15, 2006
    Publication date: May 15, 2008
    Inventors: Ehud Nir, Amir Ashkenazi