Patents by Inventor Ryan Barnhill

Ryan Barnhill 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: 11201607
    Abstract: Examples disclosed herein relate to set-reset (SR) latch circuits and methods for manufacturing the same. In some of the disclosed examples, a SR latch circuit includes an inverter storage loop for storing state information and a set of p-channel field-effect transistors (PFETs) for control circuitry. The PFETs may include first and second PFETs connected to a first node of the inverter storage loop, and third and fourth PFETs connected to a second node of the inverter storage loop. Gate terminals of the first and fourth PFETs may be connected to a first control input, and gate terminals of the second and third PFETs may be connected to a second control input.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: December 14, 2021
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Christopher Allan Poirier, Ryan Barnhill, Dacheng Zhou
  • Patent number: 11196593
    Abstract: One embodiment can provide a sampler for a decision feedback equalizer (DFE). The sampler can include a comparator comprising a resolver and a plurality of amplifiers coupled to the resolver. The plurality of amplifiers are to receive an input signal and one or more feedback signals, and the plurality of amplifiers are coupled to each other in parallel, thereby facilitating a summation of the input signal and the one or more feedback signals. The comparator is to generate an output based on the summation of the input signals and the one or more feedback signals. The sampler can further include an inverter to invert the output of the comparator. The inverted output of the inverter is sent to a tap-1 amplifier to generate a tap-1 feedback signal to be sent to the comparator at a next unit interval (UI).
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: December 7, 2021
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Dacheng Zhou, Daniel Alan Berkram, Ryan Barnhill
  • Patent number: 10389342
    Abstract: A comparator includes a resolver controlled by a resolver clock signal and a differential amplifier controlled by a sampling clock signal. The resolver clock signal and the sampling clock signal are such that amplification at the differential amplifier during the reset phase of the resolver clock signal and the reset phase of the sampling clock signal begins during the resolving phase of the resolver.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: August 20, 2019
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Dacheng Zhou, Daniel Alan Berkram, Ryan Barnhill, Christopher Allan Poirier, Christopher Wilson
  • Publication number: 20190007037
    Abstract: A comparator includes a resolver controlled by a resolver clock signal and a differential amplifier controlled by a sampling clock signal. The resolver clock signal and the sampling clock signal are such that amplification at the differential amplifier during the reset phase of the resolver clock signal and the reset phase of the sampling clock signal begins during the resolving phase of the resolver.
    Type: Application
    Filed: June 28, 2017
    Publication date: January 3, 2019
    Inventors: Dacheng Zhou, Daniel Alan Berkram, Ryan Barnhill, Christopher Allan Poirier, Christopher Wilson
  • Publication number: 20180375501
    Abstract: Examples disclosed herein relate to set-reset (SR) latch circuits and methods for manufacturing the same. In some of the disclosed examples, a SR latch circuit includes an inverter storage loop for storing state information and a set of p-channel field-effect transistors (PFETs) for control circuitry. The PFETs may include first and second PFETs connected to a first node of the inverter storage loop, and third and fourth PFETs connected to a second node of the inverter storage loop. Gate terminals of the first and fourth PFETs may be connected to a first control input, and gate terminals of the second and third PFETs may be connected to a second control input.
    Type: Application
    Filed: September 4, 2018
    Publication date: December 27, 2018
    Inventors: Christopher Allan Poirier, Ryan Barnhill, Dacheng Zhou
  • Patent number: 10075150
    Abstract: Examples disclosed herein relate to set-reset (SR) latch circuits and methods for manufacturing the same. In some of the disclosed examples, a SR latch circuit includes an inverter storage loop for storing state information and a set of p-channel field-effect transistors (PFETs) for control circuitry. The PFETs may include first and second PFETs connected to a first node of the inverter storage loop, and third and fourth PFETs connected to a second node of the inverter storage loop. Gate terminals of the first and fourth PFETs may be connected to a first control input, and gate terminals of the second and third PFETs may be connected to a second control input.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: September 11, 2018
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Christopher Allan Poirier, Ryan Barnhill, Dacheng Zhou
  • Publication number: 20180041199
    Abstract: Examples disclosed herein relate to set-reset (SR) latch circuits and methods for manufacturing the same. In some of the disclosed examples, a SR latch circuit includes an inverter storage loop for storing state information and a set of p-channel field-effect transistors (PFETs) for control circuitry. The PFETs may include first and second PFETs connected to a first node of the inverter storage loop, and third and fourth PFETs connected to a second node of the inverter storage loop. Gate terminals of the first and fourth PFETs may be connected to a first control input, and gate terminals of the second and third PFETs may be connected to a second control input.
    Type: Application
    Filed: August 3, 2016
    Publication date: February 8, 2018
    Inventors: Christopher Allan Poirier, Ryan Barnhill, Dacheng Zhou