Patents by Inventor David N. Abramson

David N. Abramson 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).

  • Turn on method without power interruption for redundant power over ethernet systems
    Patent number: 11258618
    Abstract: Disclosed examples include redundant Power over Ethernet (PoE) systems, powered device (PD) controllers and methods in which a first PD controller sends a signal to indicate to the other PD controllers that the first PD controller is powered, and a second PD controller newly connected or reconnected to a corresponding power sourcing equipment (PSE) refrains from turning off a shared DC-DC converter, and the second PD controller waits to allow an inrush current delay of the corresponding PSE to complete before allowing current flow between the DC-DC converter and the corresponding PSE, and the second PD controller selectively provides a signal to request an application circuit powered by the DC-DC converter to temporarily reduce its power consumption below a predetermined value if the corresponding PSE is configured to provide no more than the predetermined value of power.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: February 22, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jean Picard, David N. Abramson, Karl H. Jacobs
  • TURN ON METHOD WITHOUT POWER INTERRUPTION FOR REDUNDANT POWER OVER ETHERNET SYSTEMS
    Publication number: 20190327101
    Abstract: Disclosed examples include redundant Power over Ethernet (PoE) systems, powered device (PD) controllers and methods in which a first PD controller sends a signal to indicate to the other PD controllers that the first PD controller is powered, and a second PD controller newly connected or reconnected to a corresponding power sourcing equipment (PSE) refrains from turning off a shared DC-DC converter, and the second PD controller waits to allow an inrush current delay of the corresponding PSE to complete before allowing current flow between the DC-DC converter and the corresponding PSE, and the second PD controller selectively provides a signal to request an application circuit powered by the DC-DC converter to temporarily reduce its power consumption below a predetermined value if the corresponding PSE is configured to provide no more than the predetermined value of power.
    Type: Application
    Filed: July 2, 2019
    Publication date: October 24, 2019
    Inventors: Jean Picard, David N. Abramson, Karl H. Jacobs
  • Turn on method without power interruption redundant power over Ethernet systems
    Patent number: 10389539
    Abstract: Disclosed examples include redundant Power over Ethernet (PoE) systems, powered device (PD) controllers and methods in which a first PD controller sends a signal to indicate to the other PD controllers that the first PD controller is powered, and a second PD controller newly connected or reconnected to a corresponding power sourcing equipment (PSE) refrains from turning off a shared DC-DC converter, and the second PD controller waits to allow an inrush current delay of the corresponding PSE to complete before allowing current flow between the DC-DC converter and the corresponding PSE, and the second PD controller selectively provides a signal to request an application circuit powered by the DC-DC converter to temporarily reduce its power consumption below a predetermined value if the corresponding PSE is configured to provide no more than the predetermined value of power.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: August 20, 2019
    Assignee: Texas Instruments Incorporated
    Inventors: Jean Picard, David N. Abramson, Karl H. Jacobs
  • Power over ethernet powered device having automatic power signature
    Patent number: 10327305
    Abstract: In a Power over Ethernet (PoE) system, a Powered Device (PD) having circuitry to measure the load current from a Power Sourcing Equipment (PSE) in the PD. Circuitry compares the measured load current with a first threshold. Circuitry automatically generates load pulses for signaling the PSE, that power to the PD should be maintained.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: June 18, 2019
    Assignee: Texas Instruments Incorporated
    Inventors: Jean Picard, David N. Abramson, Karl H. Jacobs
  • POWER OVER ETHERNET POWERED DEVICE HAVING AUTOMATIC POWER SIGNATURE
    Publication number: 20180324910
    Abstract: In a Power over Ethernet (PoE) system, a Powered Device (PD) having circuitry to measure the load current from a Power Sourcing Equipment (PSE) in the PD. Circuitry compares the measured load current with a first threshold. Circuitry automatically generates load pulses for signaling the PSE, that power to the PD should be maintained.
    Type: Application
    Filed: July 17, 2018
    Publication date: November 8, 2018
    Inventors: Jean Picard, David N. Abramson, Karl H. Jacobs
  • Power over ethernet powered device having automatic power signature
    Patent number: 10057959
    Abstract: In a Power over Ethernet (PoE) system, a Powered Device (PD) having circuitry to measure the load current from a Power Sourcing Equipment (PSE) in the PD. Circuitry compares the measured load current with a first threshold. Circuitry automatically generates load pulses for signaling the PSE, that power to the PD should be maintained.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: August 21, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jean Picard, David N. Abramson, Karl H. Jacobs
  • TURN ON METHOD WITHOUT POWER INTERRUPTION REDUNDANT POWER OVER ETHERNET SYSTEMS
    Publication number: 20170041153
    Abstract: Disclosed examples include redundant Power over Ethernet (PoE) systems, powered device (PD) controllers and methods in which a first PD controller sends a signal to indicate to the other PD controllers that the first PD controller is powered, and a second PD controller newly connected or reconnected to a corresponding power sourcing equipment (PSE) refrains from turning off a shared DC-DC converter, and the second PD controller waits to allow an inrush current delay of the corresponding PSE to complete before allowing current flow between the DC-DC converter and the corresponding PSE, and the second PD controller selectively provides a signal to request an application circuit powered by the DC-DC converter to temporarily reduce its power consumption below a predetermined value if the corresponding PSE is configured to provide no more than the predetermined value of power.
    Type: Application
    Filed: August 4, 2016
    Publication date: February 9, 2017
    Applicant: Texas Instruments Incorporated
    Inventors: Jean Picard, David N. Abramson, Karl H. Jacobs
  • PoE PD Automatic MPS
    Publication number: 20160095175
    Abstract: In a Power over Ethernet (PoE) system, a Powered Device (PD) having circuitry to measure the load current from a Power Sourcing Equipment (PSE) in the PD. Circuitry compares the measured load current with a first threshold. Circuitry automatically generates load pulses for signaling the PSE, that power to the PD should be maintained.
    Type: Application
    Filed: September 28, 2015
    Publication date: March 31, 2016
    Inventors: Jean Picard, David N. Abramson, Karl H. Jacobs