Patents by Inventor Alexandru F. Drimbarean

Alexandru F. Drimbarean 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).

  • Patent number: 11847567
    Abstract: Some embodiments provide a method that receives a network with trained floating-point weight values. The network includes layers of nodes, each of which computes an output value based on input values and trained weight values. To replace a first layer of the trained network in a modified network with quantized weight values, the method defines multiple replica layers. Each replica layer includes nodes that correspond to nodes of the first layer, has a different set of allowed quantized weight values, and receives the same input values from a previous layer of the modified network such that groups of corresponding nodes from the replica layers operate correspondingly to the first layer. The method trains the quantized weight values of the modified network using a loss function with terms that account for effect on the loss function due to the quantization and for interactions between corresponding weight values of the replica layers.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: December 19, 2023
    Assignee: PERCEIVE CORPORATION
    Inventors: Eric A. Sather, Steven L. Teig, Alexandru F. Drimbarean
  • Patent number: 10558057
    Abstract: In one example, a camera is provided that includes: a plurality of MEMS electrostatic comb actuators, each actuator operable to exert a force on at least one lens; and an optical image stabilization (OIS) algorithm module operable to command the plurality of actuators to actuate the at least one lens responsive to motion of the camera.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: February 11, 2020
    Assignee: DigitalOptics Corporation MEMS
    Inventors: Xiaolei Liu, Roman C. Gutierrez, Pat K Leang, Jose A. Mendez, Corneliu Zaharia, Alexandru F. Drimbarean, Petronel Gheorghe Bigioi
  • Publication number: 20190171032
    Abstract: In one example, a camera is provided that includes: a plurality of MEMS electrostatic comb actuators, each actuator operable to exert a force on at least one lens; and an optical image stabilization (OIS) algorithm module operable to command the plurality of actuators to actuate the at least one lens responsive to motion of the camera.
    Type: Application
    Filed: February 11, 2019
    Publication date: June 6, 2019
    Applicant: DigitalOptics Corporation MEMS
    Inventors: Xiaolei LIU, Roman C. GUTIERREZ, Pat K. LEANG, Jose A. MENDEZ, Corneliu ZAHARIA, Alexandru F. DRIMBAREAN, Petronel Gheorghe BIGIOI
  • Patent number: 10203515
    Abstract: In one example, a camera is provided that includes: a plurality of MEMS electrostatic comb actuators, each actuator operable to exert a force on at least one lens; and an optical image stabilization (OIS) algorithm module operable to command the plurality of actuators to actuate the at least one lens responsive to motion of the camera.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: February 12, 2019
    Assignee: DigitalOptics Corporation MEMS
    Inventors: Xiaolei Liu, Roman C. Gutierrez, Pat K Leang, Jose A. Mendez, Corneliu Zaharia, Alexandru F. Drimbarean, Petronel Gheorghe Bigioi
  • Publication number: 20170329152
    Abstract: In one example, a camera is provided that includes: a plurality of MEMS electrostatic comb actuators, each actuator operable to exert a force on at least one lens; and an optical image stabilization (OIS) algorithm module operable to command the plurality of actuators to actuate the at least one lens responsive to motion of the camera.
    Type: Application
    Filed: May 30, 2017
    Publication date: November 16, 2017
    Inventors: Xiaolei LIU, Roman C. GUTIERREZ, Pat K. LEANG, Jose A. MENDEZ, Corneliu ZAHARIA, Alexandru F. DRIMBAREAN, Petronel Gheorghe BIGIOI
  • Patent number: 9664922
    Abstract: In one example, a camera is provided that includes: a plurality of MEMS electrostatic comb actuators, each actuator operable to exert a force on at least one lens; and an optical image stabilization (OIS) algorithm module operable to command the plurality of actuators to actuate the at least one lens responsive to motion of the camera.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: May 30, 2017
    Assignee: DIGITALOPTICS CORPORATION MEMS
    Inventors: Xiaolei Liu, Roman C. Gutierrez, Pat K. Leang, Jose A. Mendez, Corneliu Zaharia, Alexandru F. Drimbarean, Petronel Gheorghe Bigioi
  • Publication number: 20150085363
    Abstract: In one example, a camera is provided that includes: a plurality of MEMS electrostatic comb actuators, each actuator operable to exert a force on at least one lens; and an optical image stabilization (OIS) algorithm module operable to command the plurality of actuators to actuate the at least one lens responsive to motion of the camera.
    Type: Application
    Filed: October 6, 2014
    Publication date: March 26, 2015
    Inventors: Xiaolei Liu, Roman C. Gutierrez, Pat K. Leang, Jose A. Mendez, Corneliu Zaharia, Alexandru F. Drimbarean, Petronel Gheorghe Bigioi
  • Patent number: 8855476
    Abstract: In one example, a camera is provided that includes: a plurality of MEMS electrostatic comb actuators, each actuator operable to exert a force on at least one lens; and an optical image stabilization (OIS) algorithm module operable to command the plurality of actuators to actuate the at least one lens responsive to motion of the camera.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: October 7, 2014
    Assignee: DigitalOptics Corporation MEMS
    Inventors: Xiaolei Liu, Roman C. Gutierrez, Pat K. Leang, Jose A. Mendez, Corneliu Zaharia, Alexandru F. Drimbarean, Petronel Gheorghe Bigioi
  • Publication number: 20130077945
    Abstract: In one example, a camera is provided that includes: a plurality of MEMS electrostatic comb actuators, each actuator operable to exert a force on at least one lens; and an optical image stabilization (OIS) algorithm module operable to command the plurality of actuators to actuate the at least one lens responsive to motion of the camera.
    Type: Application
    Filed: September 28, 2011
    Publication date: March 28, 2013
    Applicant: DigitalOptics Corporation MEMS
    Inventors: Xiaolei Liu, Roman C. Gutierrez, Pat K. Leang, Jose A. Mendez, Corneliu Zaharia, Alexandru F. Drimbarean, Petronel Gheorghe Bigioi