Patents by Inventor Alberto Viviani

Alberto Viviani 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).

  • Power status telemetry for powered devices in a system with power over ethernet
    Patent number: 11936485
    Abstract: A powered device interface assembly includes an optocoupler and a powered device interface. The opto-coupler is electrically coupled with a microcontroller of the power device interface. The powered device interface includes a telemetry circuit coupled with the opto-coupler and configured to generate encoded telemetry information for output via a single pin of the powered device interface for transmission to the microcontroller of the powered device, wherein the opto-coupler is coupled with the single pin and is configured to electrically isolate the single pin from the microcontroller.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: March 19, 2024
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Gaoling Zou, Alberto Viviani, Yangyang Wen, Qicheng Huang
  • POWER STATUS TELEMETRY FOR POWERED DEVICES IN A SYSTEM WITH POWER OVER ETHERNET
    Publication number: 20220103384
    Abstract: A powered device interface assembly includes an optocoupler and a powered device interface. The opto-coupler is electrically coupled with a microcontroller of the power device interface. The powered device interface includes a telemetry circuit coupled with the opto-coupler and configured to generate encoded telemetry information for output via a single pin of the powered device interface for transmission to the microcontroller of the powered device, wherein the opto-coupler is coupled with the single pin and is configured to electrically isolate the single pin from the microcontroller.
    Type: Application
    Filed: September 7, 2021
    Publication date: March 31, 2022
    Inventors: Gaoling Zou, Alberto Viviani, Yangyang Wen, Qicheng Huang
  • Driving LEDs in backlight for flat panel display
    Patent number: 10939524
    Abstract: A backlight driver includes current sources that are connected between LED strings and a number of bias voltages. There can be any number of different bias voltages, each at a ground potential or higher voltage. The bias voltage is selected for a particular LED string in order to reduce a current drop across the current source. This reduces the power consumption of the current source and LED string. Heat dissipation is also reduced.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: March 2, 2021
    Assignee: IML International
    Inventor: Alberto Viviani
  • Driving LEDs in backlight for flat panel display
    Patent number: 9907126
    Abstract: A backlight driver includes current sources that are connected between LED strings and a number of bias voltages. There can be any number of different bias voltages, each at a ground potential or higher voltage. The bias voltage is selected for a particular LED string in order to reduce a current drop across the current source. This reduces the power consumption of the current source and LED string. Heat dissipation is also reduced.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: February 27, 2018
    Assignee: IML International
    Inventor: Alberto Viviani
  • Driving LEDs in LCD backlight
    Patent number: 9439252
    Abstract: A backlight driver includes current sources that are connected between LED strings and a number of bias voltages. There can be any number of different bias voltages, each at a ground potential or higher voltage. The bias voltage is selected for a particular LED string in order to reduce a current drop across the current source. This reduces the power consumption of the current source and LED string. Heat dissipation is also reduced.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: September 6, 2016
    Assignee: IML International
    Inventor: Alberto Viviani
  • Driving LEDs in LCD backlight
    Patent number: 8928239
    Abstract: A backlight driver includes current sources that are connected between LED strings and a number of bias voltages. There can be any number of different bias voltages, each at a ground potential or higher voltage. The bias voltage is selected for a particular LED string in order to reduce a current drop across the current source. This reduces the power consumption of the current source and LED string. Heat dissipation is also reduced.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: January 6, 2015
    Assignee: IML International
    Inventor: Alberto Viviani
  • Driving LEDs in LCD backlight
    Patent number: 8760068
    Abstract: A backlight driver includes current sources that are connected between LED strings and a number of bias voltages. There can be any number of different bias voltages, each at a ground potential or higher voltage. The bias voltage is selected for a particular LED string in order to reduce a current drop across the current source. This reduces the power consumption of the current source and LED string. Heat dissipation is also reduced.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: June 24, 2014
    Assignee: IML International
    Inventor: Alberto Viviani