Patents by Inventor David GAMPERL

David GAMPERL 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: 20230408339
    Abstract: A writing utensil including a color sensor operable to generate sensor data A processing unit is configured to receive the sensor data from the color sensor and to output the sensor data. A networking device is configured to receive the sensor data from the processing unit and arranged to transmit the sensor data via a network connection.
    Type: Application
    Filed: October 29, 2021
    Publication date: December 21, 2023
    Applicant: ams Sensors Germany GmbH
    Inventors: Gunter SIESS, Fred GRUNERT, David GAMPERL, Frank KRUMBEIN
  • Publication number: 20230204510
    Abstract: An optical detector (1) on an application specific integrated circuit (ASIC) comprises at least one photodiode (5) for receiving incident light and configured to provide at least one diode signal, a modulator (2) configured to provide an AC drive signal and to provide a reference signal associated with the AC drive signal; and a lock-in amplifier (6) configured to receive said at least one diode signal from said at least one photodiode (5) and to receive the reference signal from the modulator (2), and to determine at least one of a phase and an amplitude of said at least one diode signal using the reference signal.
    Type: Application
    Filed: May 18, 2021
    Publication date: June 29, 2023
    Inventors: Boon Chong Cheah, Alexander Volk, David Gamperl, Massimo Mascotto, Erik Jan Lous
  • Patent number: 11432386
    Abstract: A driving circuit and a method for a backlight using light-emitting diodes, LED, the backlight having a first and second segment is presented. A driving circuit for an LED backlight with a first and second segment has a first terminal, a second terminal for sensing a first signal, a third terminal for connecting to a first current generating unit for providing a first driving current, a first current regulation circuit, a fourth terminal for sensing a second signal, a fifth terminal for connecting to a second current generating unit, a second current regulation circuit for controlling the second current generating unit, and a control unit which is prepared to adjust the supply voltage and to adjust the first and/or second driving current in dependence on the first and the second signal by means of the first and/or the second current regulation circuits.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: August 30, 2022
    Assignee: Dialog Semiconductor (UK) Limited
    Inventor: David Gamperl
  • Publication number: 20210372920
    Abstract: A non-contact multispectral measurement device for measuring reflectance properties of a surface of interest may include a multispectral measurement system, a position measurement system for measuring position values of the multispectral measurement system relative to the surface of interest, and means to correct multispectral values from the multispectral measurement system based on detected position values from the position measurement system. In some embodiments the multispectral measurement system is configured with a retro-reflection measurement geometry, where the illumination light path and observation light path are inclined with respect to a surface normal of the surface of interest to reduce detection of gloss or surface reflections while obtaining multispectral values. The position measurement system may be selected from the group consisting of: a pattern projector and a camera, a camera autofocus system, a stereo vision system, a laser range finder, and a time of flight distance sensor.
    Type: Application
    Filed: May 6, 2019
    Publication date: December 2, 2021
    Inventors: Peter EHBETS, Vitaly DMITRIEV, Heiko GROSS, Johannes RILK, Thomas HOEPPLER, David GAMPERL
  • Publication number: 20210315079
    Abstract: A driving circuit and a method for a backlight using light-emitting diodes, LED, the backlight having a first and second segment is presented. A driving circuit for an LED backlight with a first and second segment has a first terminal, a second terminal for sensing a first signal, a third terminal for connecting to a first current generating unit for providing a first driving current, a first current regulation circuit, a fourth terminal for sensing a second signal, a fifth terminal for connecting to a second current generating unit, a second current regulation circuit for controlling the second current generating unit, and a control unit which is prepared to adjust the supply voltage and to adjust the first and/or second driving current in dependence on the first and the second signal by means of the first and/or the second current regulation circuits.
    Type: Application
    Filed: June 15, 2021
    Publication date: October 7, 2021
    Inventor: David Gamperl
  • Patent number: 11061273
    Abstract: A driving circuit and a method for a backlight using light-emitting diodes, LED, the backlight having a first and second segment is presented. A driving circuit for an LED backlight with a first and second segment has a first terminal, a second terminal for sensing a first signal, a third terminal for connecting to a first current generating unit for providing a first driving current, a first current regulation circuit, a fourth terminal for sensing a second signal, a fifth terminal for connecting to a second current generating unit, a second current regulation circuit for controlling the second current generating unit, and a control unit which is prepared to adjust the supply voltage and to adjust the first and/or second driving current in dependence on the first and the second signal by means of the first and/or the second current regulation circuits.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: July 13, 2021
    Assignee: Dialog Semiconductor (UK) Limited
    Inventor: David Gamperl
  • Publication number: 20190004370
    Abstract: A driving circuit and a method for a backlight using light-emitting diodes, LED, the backlight having a first and second segment is presented. A driving circuit for an LED backlight with a first and second segment has a first terminal, a second terminal for sensing a first signal, a third terminal for connecting to a first current generating unit for providing a first driving current, a first current regulation circuit, a fourth terminal for sensing a second signal, a fifth terminal for connecting to a second current generating unit, a second current regulation circuit for controlling the second current generating unit, and a control unit which is prepared to adjust the supply voltage and to adjust the first and/or second driving current in dependence on the first and the second signal by means of the first and/or the second current regulation circuits.
    Type: Application
    Filed: September 7, 2018
    Publication date: January 3, 2019
    Inventor: David Gamperl
  • Patent number: 10143047
    Abstract: A lighting control system (LCS) for generating supply currents for at least two LED channels (CH1, CH2, CHn) comprises at least two controlled current sources for generating a supply current for a corresponding LED channel based on a corresponding control signal. The system further comprises at least two signal combiners for generating the corresponding control signals based on a synchronization signal (VSYNC) that comprises periodic starting pulses and on a combination of a magnitude dimming signal and a pulse dimming signal corresponding to one of the LED channels. The signal combiners are designed such that changes of the respective control signals come into effect only with a respective time offset with respect to one of the starting pulses of the synchronization signal.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: November 27, 2018
    Assignee: Dialog Semiconductor (UK) Limited
    Inventors: David Gamperl, Manfred Pauritsch, Herbert Truppe
  • Publication number: 20180116016
    Abstract: A lighting control system (LCS) for generating supply currents for at least two LED channels (CH1, CH2, CHn) comprises at least two controlled current sources for generating a supply current for a corresponding LED channel based on a corresponding control signal. The system further comprises at least two signal combiners for generating the corresponding control signals based on a synchronization signal (VSYNC) that comprises periodic starting pulses and on a combination of a magnitude dimming signal and a pulse dimming signal corresponding to one of the LED channels. The signal combiners are designed such that changes of the respective control signals come into effect only with a respective time offset with respect to one of the starting pulses of the synchronization signal.
    Type: Application
    Filed: March 16, 2016
    Publication date: April 26, 2018
    Applicant: ams AG
    Inventors: David GAMPERL, Manfred PAURITSCH, Herbert TRUPPE