Patents by Inventor Dadi Sharon

Dadi Sharon 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: 20220342205
    Abstract: Disclosed herein is a microelectromechanical (MEMS) device, including a rotor and a first piezoelectric actuator mechanically coupled to the rotor. The first piezoelectric actuator is electrically coupled between a first signal node and a common voltage node. A second piezoelectric actuator is mechanically coupled to the rotor, and is electrically coupled between a second signal node and the common voltage node. Control circuitry includes a drive circuit configured to drive the first and second piezoelectric actuators, a sense circuit configured to process sense signals generated by the first and second pizeoelectric actuators, and a multiplexing circuit. The multiplexing circuit is configured to alternate between connecting the drive circuit to the first piezoelectric actuator while connecting the sense circuit to the second piezoelectric actuator, and connecting the drive circuit to the second piezoelectric actuator while connecting the sense circuit to the first piezoelectric actuator.
    Type: Application
    Filed: April 23, 2021
    Publication date: October 27, 2022
    Applicants: STMicroelectronics S.r.l., STMicroelectronics Ltd
    Inventors: Davide TERZI, Gianluca MENDICINO, Dadi SHARON
  • Patent number: 11474425
    Abstract: A control circuit includes a first control circuit generating a first drive control signal from a pre-drive signal (that is a frequency at which an opening angle of the first and second mirrors is equal) for the first mirror. A second control circuit generates a second drive control signal from the pre-drive signal for the second mirror. First and second drivers generate first and second drive signals for the first and second mirrors from the first and second drive control signals. The first and second drive control signals are generated so that the first and second drive signals each have a same frequency as the pre-drive signal but are different in amplitude from one another to cause the first and second mirrors to move at a same frequency, with a same and substantially constant given opening angle as one another, and in phase with one another.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: October 18, 2022
    Assignee: STMicroelectronics LTD
    Inventors: Eli Yaser, Guy Amor, Yotam Nachmias, Dadi Sharon, Sivan Nagola
  • Patent number: 11054635
    Abstract: A system includes a mirror controller driving fast and slow axis mirrors of a projector with fast and slow axis drive signals to reflect a collimated light beam in a scan pattern across the target. The scan pattern includes trace lines which cause display of an input video stream on the target, and retrace lines which operate to return the slow axis mirror to a proper location to begin a next frame of the scan pattern. The slow axis drive signal is generated to maintain a number of trace lines in each frame of the scan pattern constant across frames, but the slow axis drive signal is modified to lock a phase and frequency of the displayed video to a phase and frequency of the input video stream by changing a number of retrace lines in each frame of the scan pattern on a frame-by-frame basis by a non-integer number.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: July 6, 2021
    Assignee: STMicroelectronics LTD
    Inventors: Eli Yaser, Dadi Sharon
  • Publication number: 20210048737
    Abstract: A control circuit includes a first control circuit generating a first drive control signal from a pre-drive signal (that is a frequency at which an opening angle of the first and second mirrors is equal) for the first mirror. A second control circuit generates a second drive control signal from the pre-drive signal for the second mirror. First and second drivers generate first and second drive signals for the first and second mirrors from the first and second drive control signals. The first and second drive control signals are generated so that the first and second drive signals each have a same frequency as the pre-drive signal but are different in amplitude from one another to cause the first and second mirrors to move at a same frequency, with a same and substantially constant given opening angle as one another, and in phase with one another.
    Type: Application
    Filed: August 14, 2019
    Publication date: February 18, 2021
    Applicant: STMicroelectronics LTD
    Inventors: Eli YASER, Guy AMOR, Yotam NACHMIAS, Dadi SHARON, Sivan NAGOLA
  • Patent number: 10642025
    Abstract: The method for controlling an angular position of a MEMS mirror, includes: applying a first driving moment to the MEMS mirror to generate a rotational scanning movement of the mirror; and, at a zooming instant, applying a second driving moment to the MEMS mirror, wherein the second driving moment is equal to the first driving moment plus an extra moment. The extra moment may be a DC offset. After a transient period of time from zooming instant, a third driving moment M2=k{dot over (?)}2t is applied. The first and third driving moment are variable linearly with time. The driving moments are applied to torsional springs of the mirror.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: May 5, 2020
    Assignee: STMICROELECTRONICS LTD.
    Inventors: Offir Duvdevany, Dadi Sharon, Sason Sourani
  • Publication number: 20170285327
    Abstract: The method for controlling an angular position of a MEMS mirror, includes: applying a first driving moment to the MEMS mirror to generate a rotational scanning movement of the mirror; and, at a zooming instant, applying a second driving moment to the MEMS mirror, wherein the second driving moment is equal to the first driving moment plus an extra moment. The extra moment may be a DC offset. After a transient period of time from zooming instant, a third driving moment M2=k{dot over (?)}2t is applied. The first and third driving moment are variable linearly with time. The driving moments are applied to torsional springs of the mirror.
    Type: Application
    Filed: September 29, 2016
    Publication date: October 5, 2017
    Inventors: Offir Duvdevany, Dadi Sharon, Sason Sourani