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).
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Patent number: 11774557Abstract: 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: GrantFiled: June 21, 2019Date of Patent: October 3, 2023Assignee: Trimble ABInventors: Mikael Nordenfelt, Mikael Hertzman
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Publication number: 20190310352Abstract: 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: ApplicationFiled: June 21, 2019Publication date: October 10, 2019Inventors: Mikael Nordenfelt, Mikael Hertzman
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Patent number: 10365352Abstract: 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: GrantFiled: June 2, 2016Date of Patent: July 30, 2019Assignee: Trimble ABInventors: Mikael Nordenfelt, Mikael Hertzman
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Patent number: 10073165Abstract: 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: GrantFiled: October 1, 2015Date of Patent: September 11, 2018Assignee: Trimble ABInventors: Mikael Nordenfelt, Mikael Hertzman
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Patent number: 9952047Abstract: 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: GrantFiled: January 12, 2017Date of Patent: April 24, 2018Assignee: Trimble ABInventors: Mikael Nordenfelt, Mikael Hertzman
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Publication number: 20170122734Abstract: 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: ApplicationFiled: January 12, 2017Publication date: May 4, 2017Inventors: Mikael Nordenfelt, Mikael Hertzman
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Publication number: 20160274224Abstract: 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: ApplicationFiled: June 2, 2016Publication date: September 22, 2016Inventors: Mikael Nordenfelt, Mikael Hertzman
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Publication number: 20160131745Abstract: 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: ApplicationFiled: October 1, 2015Publication date: May 12, 2016Inventors: Mikael Nordenfelt, Mikael Hertzman
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Patent number: 9160140Abstract: 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: GrantFiled: May 27, 2014Date of Patent: October 13, 2015Assignee: TRIMBLE ABInventors: Yuri P. Gusev, Mikael Hertzman, Evgeny Vanin, Christian Grässer
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Patent number: 9046362Abstract: 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: GrantFiled: February 11, 2010Date of Patent: June 2, 2015Assignee: Trimble ABInventors: Magnus Westermark, Mikael Hertzman
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Publication number: 20140300952Abstract: 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: ApplicationFiled: May 27, 2014Publication date: October 9, 2014Applicant: TRIMBLE ABInventors: Yuri P. GUSEV, Mikael HERTZMAN, Evgeny VANIN, Christian GRÄSSER
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Patent number: 8743455Abstract: 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: GrantFiled: June 30, 2009Date of Patent: June 3, 2014Assignee: Trimble ABInventors: Yuri Gusev, Mikael Hertzman, Evgeny Vanin, Christian Grässer
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Patent number: 8575812Abstract: 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: GrantFiled: July 7, 2005Date of Patent: November 5, 2013Assignee: Trimble ABInventors: Magnus Westermark, Mikael Hertzman
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Publication number: 20120326709Abstract: 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: ApplicationFiled: February 11, 2010Publication date: December 27, 2012Applicant: TRIMBLE ABInventors: Magnus Westermark, Mikael Hertzman
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Patent number: 8279419Abstract: 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: GrantFiled: March 20, 2008Date of Patent: October 2, 2012Assignee: Trimble ABInventor: Mikael Hertzman
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Publication number: 20120162749Abstract: 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: ApplicationFiled: June 30, 2009Publication date: June 28, 2012Applicant: TRIMBLE ABInventors: Yuri Gusev, Mikael Hertzman, Evgeny Vanin, Christian Grässer
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Patent number: 7908752Abstract: 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: GrantFiled: December 27, 2006Date of Patent: March 22, 2011Assignee: Trimble ABInventors: Mikael Hertzman, Magnus Westermark, Set Svanholm
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Publication number: 20100315618Abstract: 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: ApplicationFiled: March 20, 2008Publication date: December 16, 2010Inventor: Mikael Hertzman
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Patent number: 7765084Abstract: 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: GrantFiled: November 10, 2008Date of Patent: July 27, 2010Assignee: Trimble A.B.Inventors: Magnus Westermark, Mikael Hertzman, Ulf Berg, Thomas Klang
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Patent number: 7762135Abstract: 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: GrantFiled: December 8, 2005Date of Patent: July 27, 2010Assignee: Trimble ABInventors: Mikael Hertzman, Thomas Klang