the positional error is used to control continuously the servomotor according to its magnitude

Patents Grantslast 30 patents

  • Information Patent Grant

    Frequency characteristic measurement device, controller and frequen...

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    • Issue date Jul 11, 2023
    • FANUC CORPORATION
    • Wei Luo
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    System and method for self-calibration of an actuator

    • Patent number 10,139,804
    • Issue date Nov 27, 2018
    • Emerson Process Management Valve Automation, Inc.
    • Thangaraja Ramakrishnan
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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    Numerical control device having function of calculating frequency c...

    • Patent number 9,887,865
    • Issue date Feb 6, 2018
    • FANUC CORPORATION
    • Junichi Tezuka
    • G05 - CONTROLLING REGULATING
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    Method for increasing the availability of displacement/position mea...

    • Patent number 8,447,555
    • Issue date May 21, 2013
    • ABB Technology AG
    • Stefan Tabelander
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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    System and method for moving a component through a setpoint profile...

    • Patent number 7,774,287
    • Issue date Aug 10, 2010
    • ASML Netherlands B.V.
    • Marcel François Heertjes
    • G05 - CONTROLLING REGULATING
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    Automatic mirror repositioning

    • Patent number 5,111,125
    • Issue date May 5, 1992
    • United Technologies Automotive
    • John A. Barrs
    • B60 - VEHICLES IN GENERAL
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    Memory mirror control system for vehicles and the like

    • Patent number 4,929,878
    • Issue date May 29, 1990
    • United Technologies Automotive, Inc.
    • Randall F. Hansen
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Method and apparatus for tape dispensing servo tracking control

    • Patent number 4,719,397
    • Issue date Jan 12, 1988
    • Cincinnati Milacron Inc.
    • Ralph W. Kneifel
    • G05 - CONTROLLING REGULATING
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    Method and apparatus for oscillating a tool carried by a manipulator

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    • Issue date Jan 6, 1987
    • Cincinnati Milacron Inc.
    • Madhukar Bhatia
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Precision X-Y positioner

    • Patent number 4,509,002
    • Issue date Apr 2, 1985
    • International Business Machines Corporation
    • Ralph L. Hollis
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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    Impulse drive system

    • Patent number 4,230,978
    • Issue date Oct 28, 1980
    • Compugraphic Corporation
    • John F. Gardella
    • G05 - CONTROLLING REGULATING
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    Path control apparatus for the computer directed control of a numer...

    • Patent number 4,214,192
    • Issue date Jul 22, 1980
    • Siemens Aktiengesellschaft
    • Gunter Bromer
    • G05 - CONTROLLING REGULATING
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    Interruptable numerical contouring control system with return to pa...

    • Patent number 4,055,787
    • Issue date Oct 25, 1977
    • Giddings & Lewis, Inc.
    • Bruce R. Beadle
    • G05 - CONTROLLING REGULATING
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    Final servo control in NC systems

    • Patent number 4,041,287
    • Issue date Aug 9, 1977
    • Giddings & Lewis, Inc.
    • Norbert C. Kolell
    • G05 - CONTROLLING REGULATING
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    3911346

    • Patent number 3,911,346
    • Issue date Oct 7, 1975
    • G05 - CONTROLLING REGULATING
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    3889105

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    • Issue date Jun 10, 1975
    • G05 - CONTROLLING REGULATING
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    3882487

    • Patent number 3,882,487
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    • G05 - CONTROLLING REGULATING
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    3798430

    • Patent number 3,798,430
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    • G05 - CONTROLLING REGULATING
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    3783719

    • Patent number 3,783,719
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    • G05 - CONTROLLING REGULATING
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    3701888

    • Patent number 3,701,888
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    • G05 - CONTROLLING REGULATING
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    3684874

    • Patent number 3,684,874
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    • G05 - CONTROLLING REGULATING
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    3679955

    • Patent number 3,679,955
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    • G05 - CONTROLLING REGULATING
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    3668653

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    • G05 - CONTROLLING REGULATING
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    3656124

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    • G05 - CONTROLLING REGULATING
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    3634661

    • Patent number 3,634,661
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    • G05 - CONTROLLING REGULATING
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    3609321

    • Patent number 3,609,321
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    • G05 - CONTROLLING REGULATING
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    3604998

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    3571686

    • Patent number 3,571,686
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    • G05 - CONTROLLING REGULATING
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    3569814

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    • G05 - CONTROLLING REGULATING
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    3559021

    • Patent number 3,559,021
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    • G05 - CONTROLLING REGULATING

Patents Applicationslast 30 patents