Patents by Inventor Kambiz Kaviani

Kambiz Kaviani 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: 20220350390
    Abstract: Embodiments generally relate to a memory device. In one embodiment, the memory device includes a clock receiver circuit that receives an external clock signal and provides an internal clock signal. The memory device also includes a delay-locked loop circuit (DLL) having an input, and a circuit that receives the internal clock signal. The circuit selects which pulses of the internal clock signal are applied to the input of the DLL, such that no more than two clock pulses selected from at least three consecutive pulses of the external clock signal are applied to the input of the DLL during a predetermined interval.
    Type: Application
    Filed: May 19, 2022
    Publication date: November 3, 2022
    Inventors: Dinesh Patil, Amir Amirkhany, Farrukh Aquil, Kambiz Kaviani, Frederick A. Ware
  • Patent number: 11340686
    Abstract: Embodiments generally relate to a memory device. In one embodiment, the memory device includes a clock receiver circuit that receives an external clock signal and provides an internal clock signal. The memory device also includes a delay-locked loop circuit (DLL) having an input, and a circuit that receives the internal clock signal. The circuit selects which pulses of the internal clock signal are applied to the input of the DLL, such that no more than two clock pulses selected from at least three consecutive pulses of the external clock signal are applied to the input of the DLL during a predetermined interval.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: May 24, 2022
    Assignee: Rambus Inc.
    Inventors: Dinesh Patil, Amir Amirkhany, Farrukh Aquil, Kambiz Kaviani, Frederick A. Ware
  • Publication number: 20210041932
    Abstract: Embodiments generally relate to a memory device. In one embodiment, the memory device includes a clock receiver circuit that receives an external clock signal and provides an internal clock signal. The memory device also includes a delay-locked loop circuit (DLL) having an input, and a circuit that receives the internal clock signal. The circuit selects which pulses of the internal clock signal are applied to the input of the DLL, such that no more than two clock pulses selected from at least three consecutive pulses of the external clock signal are applied to the input of the DLL during a predetermined interval.
    Type: Application
    Filed: August 26, 2020
    Publication date: February 11, 2021
    Inventors: Dinesh Patil, Amir Amirkhany, Farrukh Aquil, Kambiz Kaviani, Frederick A. Ware
  • Patent number: 10761587
    Abstract: Embodiments generally relate to a memory device. In one embodiment, the memory device includes a clock receiver circuit that receives an external clock signal and provides an internal clock signal. The memory device also includes a delay-locked loop circuit (DLL) having an input, and a circuit that receives the internal clock signal. The circuit selects which pulses of the internal clock signal are applied to the input of the DLL, such that no more than two clock pulses selected from at least three consecutive pulses of the external clock signal are applied to the input of the DLL during a predetermined interval.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: September 1, 2020
    Assignee: Rambus Inc.
    Inventors: Dinesh Patil, Amir Amirkhany, Farrukh Aquil, Kambiz Kaviani, Frederick A. Ware
  • Publication number: 20200232028
    Abstract: Provided herein are devices and methods suitable for sequencing, amplifying, analyzing, and performing sample preparation procedures for nucleic acids and other biomolecules.
    Type: Application
    Filed: January 7, 2020
    Publication date: July 23, 2020
    Inventors: Hesaam Esfandyarpour, Hamid Rategh, Meysam R. Barmi, Kosar B. Parizi, Kambiz Kaviani
  • Patent number: 10570449
    Abstract: Provided herein are devices and methods suitable for sequencing, amplifying, analyzing, and performing sample preparation procedures for nucleic acids and other biomolecules.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: February 25, 2020
    Assignee: GENAPSYS, INC.
    Inventors: Hesaam Esfandyarpour, Hamid Rategh, Meysam R. Barmi, Kosar B. Parizi, Kambiz Kaviani
  • Publication number: 20190171272
    Abstract: Embodiments generally relate to a memory device. In one embodiment, the memory device includes a clock receiver circuit that receives an external clock signal and provides an internal clock signal. The memory device also includes a delay-locked loop circuit (DLL) having an input, and a circuit that receives the internal clock signal. The circuit selects which pulses of the internal clock signal are applied to the input of the DLL, such that no more than two clock pulses selected from at least three consecutive pulses of the external clock signal are applied to the input of the DLL during a predetermined interval.
    Type: Application
    Filed: November 16, 2018
    Publication date: June 6, 2019
    Inventors: Dinesh Patil, Amir Amirkhany, Farrukh Aquil, Kambiz Kaviani, Frederick A. Ware
  • Patent number: 10133338
    Abstract: Embodiments generally relate to a memory device. In one embodiment, the memory device includes a clock receiver circuit that receives an external clock signal and provides an internal clock signal. The memory device also includes a delay-locked loop circuit (DLL) having an input, and a circuit that receives the internal clock signal. The circuit selects which pulses of the internal clock signal are applied to the input of the DLL, such that no more than two clock pulses selected from at least three consecutive pulses of the external clock signal are applied to the input of the DLL during a predetermined interval.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: November 20, 2018
    Assignee: Rambus Inc.
    Inventors: Dinesh Patil, Amir Amirkhany, Farrukh Aquil, Kambiz Kaviani, Frederick A. Ware
  • Publication number: 20180155780
    Abstract: Provided herein are devices and methods suitable for sequencing, amplifying, analyzing, and performing sample preparation procedures for nucleic acids and other biomolecules.
    Type: Application
    Filed: October 5, 2017
    Publication date: June 7, 2018
    Inventors: Hesaam Esfandyarpour, Hamid Rategh, Meysam R. Barmi, Kosar B, Parizi, Kambiz Kaviani
  • Patent number: 9809852
    Abstract: Provided herein are devices and methods suitable for sequencing, amplifying, analyzing, and performing sample preparation procedures for nucleic acids and other biomolecules.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: November 7, 2017
    Assignee: GENAPSYS, INC.
    Inventors: Hesaam Esfandyarpour, Hamid Rategh, Meysam R. Barmi, Kosar B. Parizi, Kambiz Kaviani
  • Publication number: 20170308144
    Abstract: Embodiments generally relate to a memory device. In one embodiment, the memory device includes a clock receiver circuit that receives an external clock signal and provides an internal clock signal. The memory device also includes a delay-locked loop circuit (DLL) having an input, and a circuit that receives the internal clock signal. The circuit selects which pulses of the internal clock signal are applied to the input of the DLL, such that no more than two clock pulses selected from at least three consecutive pulses of the external clock signal are applied to the input of the DLL during a predetermined interval.
    Type: Application
    Filed: May 8, 2017
    Publication date: October 26, 2017
    Inventors: Dinesh Patil, Amir Amirkhany, Farrukh Aquil, Kambiz Kaviani, Frederick A. Ware
  • Patent number: 9645631
    Abstract: Embodiments generally relate to a memory device. In one embodiment, the memory device includes a clock receiver circuit that receives an external clock signal and provides an internal clock signal. The memory device also includes a delay-locked loop circuit (DLL) having an input, and a circuit that receives the internal clock signal. The circuit selects which pulses of the internal clock signal are applied to the input of the DLL, such that no more than two clock pulses selected from at least three consecutive pulses of the external clock signal are applied to the input of the DLL during a predetermined interval.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: May 9, 2017
    Assignee: Rambus Inc.
    Inventors: Dinesh Patil, Amir Amirkhany, Farrukh Aquil, Kambiz Kaviani, Frederick A. Ware
  • Patent number: 9606223
    Abstract: An electronic device for wirelessly tracking the position of a second electronic device is disclosed. The electronic device includes transceiver circuitry having a beacon generator to generate a beacon at a particular frequency and direction. An antenna array transmits the beacon, and receives at least one reflected beacon from the second electronic device. The reflected beacon is received if a position of the second electronic device lies within a range of directions of the beacon. The transceiver circuitry further includes an injection-locked oscillator having an input coupled to the antenna array to receive reflected beacons, and to lock to the reflected beacon when the reflected beacon has a frequency value within locking range of the oscillator. Processing circuitry coupled to the transceiver circuitry tracks the position of the second device based on the lock condition of the oscillator.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: March 28, 2017
    Assignee: Lattice Semiconductor Corporation
    Inventors: Farshid Aryanfar, Marko Aleksić, Kambiz Kaviani
  • Publication number: 20170052584
    Abstract: Embodiments generally relate to a memory device. In one embodiment, the memory device includes a clock receiver circuit that receives an external clock signal and provides an internal clock signal. The memory device also includes a delay-locked loop circuit (DLL) having an input, and a circuit that receives the internal clock signal. The circuit selects which pulses of the internal clock signal are applied to the input of the DLL, such that no more than two clock pulses selected from at least three consecutive pulses of the external clock signal are applied to the input of the DLL during a predetermined interval.
    Type: Application
    Filed: August 26, 2016
    Publication date: February 23, 2017
    Inventors: Dinesh Patil, Amir Amirkhany, Farrukh Aquil, Kambiz Kaviani, Frederick A. Ware
  • Patent number: 9571034
    Abstract: Coupled multi-inductors and their applications. An apparatus includes several circuit stages. Each circuit stage includes an inductive element that overlaps with the inductive elements of its adjacent circuit stages, forming a loop of coupled circuit stages. The apparatus may be, for example, a multi-phase oscillator with multiple oscillators that are magnetically coupled to each other for generating oscillation signals at different phases. The apparatus may also be, for example, a phase interpolator for combining input signals.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: February 14, 2017
    Assignee: Rambus Inc.
    Inventors: Mohammad Hekmat, Farshid Aryanfar, Kambiz Kaviani
  • Patent number: 9564879
    Abstract: A signal on a transmitter tracks noise on a ground node in a manner decoupled from a positive node of a power supply. The signal is transmitted from the transmitter to the receiver. A reference voltage is generated on the receiver to track noise on a ground node in the receiver. Consequently, the received signal and the reference voltage have substantially the same noise characteristics, which become common mode noise that can be cancelled out when these two signals are compared against each other. In a further embodiment, the reference voltage is compared against a predetermined calibration pattern. An error signal is generated based on a difference between the sampler output and the predetermined calibration pattern. The error signal is then used to adjust the reference voltage so that the DC level of the reference voltage is positioned substantially in the middle of the received signal.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: February 7, 2017
    Assignee: Rambus Inc.
    Inventors: Lei Luo, Barry W. Daly, Kambiz Kaviani, John Cronan Eble, III, John Wilson
  • Patent number: 9515856
    Abstract: A decision feedback equalizer is calibrated to compensate for estimated inter-symbol interference in a received signal and offsets of sampling devices. The decision feedback equalizer is configured so that an output signal of a sampling circuit represents a comparison between an input signal and a reference of the sampling circuit under calibration. An input signal is received over a communication channel that includes a predetermined pattern. The predetermined pattern is compared to the output signal to determine an adjusted reference for configuring the sampling circuit that accounts for both offset and inter-symbol interference effects.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: December 6, 2016
    Assignee: Rambus Inc.
    Inventors: Kambiz Kaviani, Amir Amirkhany, Jason Chia-Jen Wei, Aliazam Abbasfar
  • Patent number: 9431089
    Abstract: Embodiments generally relate to a memory device. In one embodiment, the memory device includes a clock receiver circuit that receives an external clock signal and provides an internal clock signal. The memory device also includes a delay-locked loop circuit (DLL) having an input, and a circuit that receives the internal clock signal. The circuit selects which pulses of the internal clock signal are applied to the input of the DLL, such that no more than two clock pulses selected from at least three consecutive pulses of the external clock signal are applied to the input of the DLL during a predetermined interval.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: August 30, 2016
    Assignee: Rambus Inc.
    Inventors: Dinesh Patil, Amir Amirkhany, Farrukh Aquil, Kambiz Kaviani, Frederick A. Ware
  • Patent number: 9432227
    Abstract: A partial response decision feedback equalizer (PrDFE) includes a receiver including at least first and second comparators operative to compare an input signal representing a sequence of symbols against respective thresholds and to respectively generate first and second receiver outputs. A first selection stage is provided to select (a) between the first comparator output and a first resolved symbol according to a first timing signal, and (b) between the second comparator output and the first resolved symbol according to the first timing signal, to produce respective first and second selection outputs. A second selection stage selects between the first and second selection outputs according to a selection signal. The selection signal is dependent on a prior resolved symbol that precedes the first resolved symbol in the sequence.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: August 30, 2016
    Assignee: Rambus Inc.
    Inventors: Amir Amirkhany, Kambiz Kaviani, Aliazam Abbasfar
  • Publication number: 20160241191
    Abstract: Coupled multi-inductors and their applications. An apparatus includes several circuit stages. Each circuit stage includes an inductive element that overlaps with the inductive elements of its adjacent circuit stages, forming a loop of coupled circuit stages. The apparatus may be, for example, a multi-phase oscillator with multiple oscillators that are magnetically coupled to each other for generating oscillation signals at different phases. The apparatus may also be, for example, a phase interpolator for combining input signals.
    Type: Application
    Filed: February 22, 2016
    Publication date: August 18, 2016
    Inventors: Mohammad Hekmat, Farshid Aryanfar, Kambiz Kaviani