Patents by Inventor Mikael Hertzman

Mikael Hertzman 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: 20190310352
    Abstract: A measurement instrument is disclosed. The measurement instrument comprises a front lens assembly, a distance measurement module and a deflection module. The front lens assembly comprises an optical path along an instrument optical axis and the distance measurement module is configured to transmit and receive optical radiation along a measurement path. The deflection module is arranged between the distance measurement module and the front lens assembly to deflect the measurement path across the instrument optical axis.
    Type: Application
    Filed: June 21, 2019
    Publication date: October 10, 2019
    Inventors: Mikael Nordenfelt, Mikael Hertzman
  • Patent number: 10365352
    Abstract: A measurement instrument is disclosed. The measurement instrument comprises a front lens assembly, a distance measurement module and a deflection module. The front lens assembly comprises an optical path along an instrument optical axis and the distance measurement module is configured to transmit and receive optical radiation along a measurement path. The deflection module is arranged between the distance measurement module and the front lens assembly to deflect the measurement path across the instrument optical axis.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: July 30, 2019
    Assignee: Trimble AB
    Inventors: Mikael Nordenfelt, Mikael Hertzman
  • Patent number: 10073165
    Abstract: A measurement instrument is disclosed. The measurement instrument comprises a distance measurement module, a splitter and a deflection module. The distance measurement module is configured to transmit optical radiation along a transmit path and receive optical radiation along a receive path. The transmit path and the receive path are merged in a measurement beam at the splitter. The deflection module is located optically between the distance measurement module and the splitter. The deflection module is configured to aim the transmit path and the receive path at the splitter and to deflect at least one of the transmit path and the receive path across an instrument optical axis.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: September 11, 2018
    Assignee: Trimble AB
    Inventors: Mikael Nordenfelt, Mikael Hertzman
  • Patent number: 9952047
    Abstract: The present disclosure relates to a measuring instrument and a method implemented in such a measuring instrument. The measuring instrument includes an image sensor, an actuator, a control unit and a processor. The actuator is arranged to move a field of view of the image sensor. The control unit is configured to cause the image sensor to capture at least one digital image during motion of the field of view of the image sensor by the actuator. The exposure time for capturing the digital image is longer than an identifiable section of a regulating pattern for modulation of an optical radiation either emitted or reflected by at least one target. The processor is configured to process at least a portion of the captured image for detecting in the at least one portion the identifiable section of the regulating pattern. Such a measuring instrument is advantageous for detecting and/or identifying a target in the vicinity of the instrument.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: April 24, 2018
    Assignee: Trimble AB
    Inventors: Mikael Nordenfelt, Mikael Hertzman
  • Publication number: 20170122734
    Abstract: The present disclosure relates to a measuring instrument and a method implemented in such a measuring instrument. The measuring instrument includes an image sensor, an actuator, a control unit and a processor. The actuator is arranged to move a field of view of the image sensor. The control unit is configured to cause the image sensor to capture at least one digital image during motion of the field of view of the image sensor by the actuator. The exposure time for capturing the digital image is longer than an identifiable section of a regulating pattern for modulation of an optical radiation either emitted or reflected by at least one target. The processor is configured to process at least a portion of the captured image for detecting in the at least one portion the identifiable section of the regulating pattern. Such a measuring instrument is advantageous for detecting and/or identifying a target in the vicinity of the instrument.
    Type: Application
    Filed: January 12, 2017
    Publication date: May 4, 2017
    Inventors: Mikael Nordenfelt, Mikael Hertzman
  • Publication number: 20160274224
    Abstract: A measurement instrument is disclosed. The measurement instrument comprises a front lens assembly, a distance measurement module and a deflection module. The front lens assembly comprises an optical path along an instrument optical axis and the distance measurement module is configured to transmit and receive optical radiation along a measurement path. The deflection module is arranged between the distance measurement module and the front lens assembly to deflect the measurement path across the instrument optical axis.
    Type: Application
    Filed: June 2, 2016
    Publication date: September 22, 2016
    Inventors: Mikael Nordenfelt, Mikael Hertzman
  • Publication number: 20160131745
    Abstract: A measurement instrument is disclosed. The measurement instrument comprises a distance measurement module, a splitter and a deflection module. The distance measurement module is configured to transmit optical radiation along a transmit path and receive optical radiation along a receive path. The transmit path and the receive path are merged in a measurement beam at the splitter. The deflection module is located optically between the distance measurement module and the splitter. The deflection module is configured to aim the transmit path and the receive path at the splitter and to deflect at least one of the transmit path and the receive path across an instrument optical axis.
    Type: Application
    Filed: October 1, 2015
    Publication date: May 12, 2016
    Inventors: Mikael Nordenfelt, Mikael Hertzman
  • Patent number: 9160140
    Abstract: It is disclosed a method for driving a laser diode such as to enable mitigation or elimination of so called spiking effects related to the number of injected carriers in the laser overshooting the equilibrium value at the beginning of the lasing process. In this manner, among other things, the efficiency of a master oscillator power amplifier that may be utilized in range finding applications will be improved. It is further disclosed an optical pulse transmitter comprising such a laser diode.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: October 13, 2015
    Assignee: TRIMBLE AB
    Inventors: Yuri P. Gusev, Mikael Hertzman, Evgeny Vanin, Christian Grässer
  • Patent number: 9046362
    Abstract: A method for a measuring instrument is disclosed, for separating the angular deviation of a rotational axis of an instrument body from a corresponding true rotational axis due to imperfections in at least one rolling-element bearing effectuating the rotational mounting of the instrument body into different parts corresponding to type of imperfection. The method comprises detecting rotary position of the at least one rolling-element bearing, and determining angular deviation of the rotational axis from the corresponding true rotational axis in a plurality of rotational positions of the instrument body, wherein the instrument body is rotated a plurality of successive full or partial revolutions about the rotational axis. There is also disclosed a measuring system and a measuring instrument to be used in such a measuring system.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: June 2, 2015
    Assignee: Trimble AB
    Inventors: Magnus Westermark, Mikael Hertzman
  • Publication number: 20140300952
    Abstract: It is disclosed a method for driving a laser diode such as to enable mitigation or elimination of so called spiking effects related to the number of injected carriers in the laser overshooting the equilibrium value at the beginning of the lasing process. In this manner, among other things, the efficiency of a master oscillator power amplifier that may be utilized in range finding applications will be improved. It is further disclosed an optical pulse transmitter comprising such a laser diode.
    Type: Application
    Filed: May 27, 2014
    Publication date: October 9, 2014
    Applicant: TRIMBLE AB
    Inventors: Yuri P. GUSEV, Mikael HERTZMAN, Evgeny VANIN, Christian GRÄSSER
  • Patent number: 8743455
    Abstract: It is disclosed a method for driving a laser diode such as to enable mitigation or elimination of so called spiking effects related to the number of injected carriers in the laser overshooting the equilibrium value at the beginning of the lasing process. In this manner, among other things, the efficiency of a master oscillator power amplifier that may be utilized in range finding applications will be improved. It is further disclosed an optical pulse transmitter comprising such a laser diode.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: June 3, 2014
    Assignee: Trimble AB
    Inventors: Yuri Gusev, Mikael Hertzman, Evgeny Vanin, Christian Grässer
  • Patent number: 8575812
    Abstract: A winding for an n-phase electric motor is disclosed. The inventive winding comprises a number of consecutive winding groups of n individual windings, wherein at any point in time an individual winding of a first group exhibits one direction of current flow and wherein at the same point in time a corresponding individual winding of an adjacent group exhibits the opposite direction of current flow. There is also disclosed a method for preparing such winding. It is further disclosed a magnetic unit adapted for such winding, comprising permanent magnets being essentially triangular in cross-section. Further, there is disclosed electric motors using the inventive winding concept, as well as geodetic instruments taking advantage thereof. An electric motor according to the disclosed inventive concept is particularly well suited for direct drive.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: November 5, 2013
    Assignee: Trimble AB
    Inventors: Magnus Westermark, Mikael Hertzman
  • Publication number: 20120326709
    Abstract: A method for a measuring instrument is disclosed, for separating the angular deviation of a rotational axis of an instrument body from a corresponding true rotational axis due to imperfections in at least one rolling-element bearing effectuating the rotational mounting of the instrument body into different parts corresponding to type of imperfection. The method comprises detecting rotary position of the at least one rolling-element bearing, and determining angular deviation of the rotational axis from the corresponding true rotational axis in a plurality of rotational positions of the instrument body, wherein the instrument body is rotated a plurality of successive full or partial revolutions about the rotational axis. There is also disclosed a measuring system and a measuring instrument to be used in such a measuring system.
    Type: Application
    Filed: February 11, 2010
    Publication date: December 27, 2012
    Applicant: TRIMBLE AB
    Inventors: Magnus Westermark, Mikael Hertzman
  • Patent number: 8279419
    Abstract: The present invention provides a method and a geodetic scanner for determining the appearance of a target. In the method and geodetic scanner of the present invention, an initial can is performed to calculate or determine a set of optimal gain values for each one of a number of predetermined positions (151-166) at the surface of the target (150). Once gain values (g151-g166) have been determined for all predetermined positions, distances to each one of the predetermined positions are calculated using the gain values. The present invention is advantageous in that the measurement rate and the overall efficiency are increased.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: October 2, 2012
    Assignee: Trimble AB
    Inventor: Mikael Hertzman
  • Publication number: 20120162749
    Abstract: It is disclosed a method for driving a laser diode such as to enable mitigation or elimination of so called spiking effects related to the number of injected carriers in the laser overshooting the equilibrium value at the beginning of the lasing process. In this manner, among other things, the efficiency of a master oscillator power amplifier that may be utilized in range finding applications will be improved. It is further disclosed an optical pulse transmitter comprising such a laser diode.
    Type: Application
    Filed: June 30, 2009
    Publication date: June 28, 2012
    Applicant: TRIMBLE AB
    Inventors: Yuri Gusev, Mikael Hertzman, Evgeny Vanin, Christian Grässer
  • Patent number: 7908752
    Abstract: A geodetic instrument is disclosed, wherein an image sensor is used for locating the instrument above a desired point on the ground. The positioning of the image sensor with respect to the instrument vertical rotation axis is determined, or calibrated, using a method where two images are captured at different horizontal rotational positions for the instrument, and where the center pixel of the image sensor is related to the vertical rotation axis by means of image processing. It is also disclosed how reflecting elements, such as prisms, may be used for providing stereoscopic vision that can be used for determining the instrument height above the ground.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: March 22, 2011
    Assignee: Trimble AB
    Inventors: Mikael Hertzman, Magnus Westermark, Set Svanholm
  • Publication number: 20100315618
    Abstract: The present invention provides a method and a geodetic scanner for determining the appearance of a target. In the method and geodetic scanner of the present invention, an initial can is performed to calculate or determine a set of optimal gain values for each one of a number of predetermined positions (151-166) at the surface of the target (150). Once gain values (g151-g166) have been determined for all predetermined positions, distances to each one of the predetermined positions are calculated using the gain values. The present invention is advantageous in that the measurement rate and the overall efficiency are increased.
    Type: Application
    Filed: March 20, 2008
    Publication date: December 16, 2010
    Inventor: Mikael Hertzman
  • Patent number: 7762135
    Abstract: There is disclosed methods and apparatus for compensated measurement of angular displacement within an instrument (600), such as a total station. Improved and compensated measurement of angular displacement is obtained by using a combination of e.g. an angular resolver (145) and an inertial sensor (645). A compensated angular position measurement is produced by combining at least portions of the output signals obtained from the angular resolver and the inertial sensor, respectively.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: July 27, 2010
    Assignee: Trimble AB
    Inventors: Mikael Hertzman, Thomas Klang
  • Patent number: 7765084
    Abstract: In a position control arrangement for controlling the rotational position of a movable unit, especially for a surveying instrument, an electric motor is arranged to rotate the movable unit around an axis of rotation, and there are controllers for enabling the motor to stop the movable unit in a desired rotational position. The motor is a direct drive motor, the shaft of which forms the axis of rotation for the movable unit, and the motor is arranged to selectively operate in either a first, normal mode for rotating the movable unit to a desired position, or in a second, friction mode for providing resistance to a forced rotation of the movable unit from a predetermined position to a new position. A control unit detects the presence of a forced rotation and automatically changes the mode of operation in response thereto.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: July 27, 2010
    Assignee: Trimble A.B.
    Inventors: Magnus Westermark, Mikael Hertzman, Ulf Berg, Thomas Klang
  • Publication number: 20100037474
    Abstract: A geodetic instrument is disclosed, wherein an image sensor is used for locating the instrument above a desired point on the ground. The positioning of the image sensor with respect to the instrument vertical rotation axis is determined, or calibrated, using a method where two images are captured at different horizontal rotational positions for the instrument, and where the center pixel of the image sensor is related to the vertical rotation axis by means of image processing. It is also disclosed how reflecting elements, such as prisms, may be used for providing stereoscopic vision that can be used for determining the instrument height above the ground.
    Type: Application
    Filed: December 27, 2006
    Publication date: February 18, 2010
    Inventors: Mikael Hertzman, Magnus Westermark, Set Svanholm