Patents by Inventor Jessica Leigh Kiefer

Jessica Leigh Kiefer 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).

  • Hot swap circuit
    Patent number: 10068721
    Abstract: In one embodiment, a hot swap circuit is disclosed. The hot swap circuit includes a first switch connected to a power input line. The hot swap circuit also includes a first capacitor connected to the first switch that is charged when the first switch is closed. The hot swap circuit further includes a second switch connected to the first switch and the first capacitor. The hot swap circuit additionally includes an input capacitor connected to the second switch and located in parallel with an input line to a power system. When the second switch is closed, the input capacitor is charged.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: September 4, 2018
    Assignee: Cisco Technology, Inc.
    Inventors: Michael Robert Grant, Yang Li, Jessica Leigh Kiefer, Kan Chiu Seto, Shobhana Punjabi
  • Hot swap circuit
    Patent number: 9910811
    Abstract: In one embodiment, a hot swap circuit is disclosed. The hot swap circuit includes a capacitor in parallel with an input line to a power system. The hot swap circuit also includes a switch in parallel with the input line to the power system and coupled to the capacitor. The hot swap circuit further includes circuitry configured to pre-charge the capacitor to a first voltage while the switch is open. The switch is operable to cause the capacitor to be charged from the first voltage to a second voltage when the switch is closed.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: March 6, 2018
    Assignee: Cisco Technology, Inc.
    Inventors: Yang Li, Michael Robert Grant, Jessica Leigh Kiefer, Kan Chiu Seto
  • HOT SWAP CIRCUIT
    Publication number: 20170229257
    Abstract: In one embodiment, a hot swap circuit is disclosed. The hot swap circuit includes a first switch connected to a power input line. The hot swap circuit also includes a first capacitor connected to the first switch that is charged when the first switch is closed. The hot swap circuit further includes a second switch connected to the first switch and the first capacitor. The hot swap circuit additionally includes an input capacitor connected to the second switch and located in parallel with an input line to a power system. When the second switch is closed, the input capacitor is charged.
    Type: Application
    Filed: April 27, 2017
    Publication date: August 10, 2017
    Inventors: Michael Robert Grant, Yang Li, Jessica Leigh Kiefer, Kan Chiu Seto, Shobhana Punjabi
  • Hot swap circuit
    Patent number: 9665164
    Abstract: In one embodiment, a hot swap circuit is disclosed. The hot swap circuit includes a first switch connected to a power input line. The hot swap circuit also includes a first capacitor connected to the first switch that is charged when the first switch is closed. The hot swap circuit further includes a second switch connected to the first switch and the first capacitor. The hot swap circuit additionally includes an input capacitor connected to the second switch and located in parallel with an input line to a power system. When the second switch is closed, the input capacitor is charged.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: May 30, 2017
    Assignee: Cisco Technology, Inc.
    Inventors: Michael Robert Grant, Yang Li, Jessica Leigh Kiefer, Kan Chiu Seto, Shobhana Punjabi
  • HOT SWAP CIRCUIT
    Publication number: 20170045929
    Abstract: In one embodiment, a hot swap circuit is disclosed. The hot swap circuit includes a first switch connected to a power input line. The hot swap circuit also includes a first capacitor connected to the first switch that is charged when the first switch is closed. The hot swap circuit further includes a second switch connected to the first switch and the first capacitor. The hot swap circuit additionally includes an input capacitor connected to the second switch and located in parallel with an input line to a power system. When the second switch is closed, the input capacitor is charged.
    Type: Application
    Filed: August 12, 2015
    Publication date: February 16, 2017
    Inventors: Michael Robert Grant, Yang Li, Jessica Leigh Kiefer, Kan Chiu Seto, Shobhana Punjabi
  • HOT SWAP CIRCUIT
    Publication number: 20160313783
    Abstract: In one embodiment, a hot swap circuit is disclosed. The hot swap circuit includes a capacitor in parallel with an input line to a power system. The hot swap circuit also includes a switch in parallel with the input line to the power system and coupled to the capacitor. The hot swap circuit further includes circuitry configured to pre-charge the capacitor to a first voltage while the switch is open. The switch is operable to cause the capacitor to be charged from the first voltage to a second voltage when the switch is closed.
    Type: Application
    Filed: April 27, 2015
    Publication date: October 27, 2016
    Inventors: Yang Li, Michael Robert Grant, Jessica Leigh Kiefer, Kan Chiu Seto