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Class Information
Number: 318/603
Name: Electricity: motive power systems > Positional servo systems (e.g., servomechanisms) > Digital or numerical systems > Pulse-counting systems
Description: Subject matter in which a counting means acts as the comparator between the command signal and the position signal.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7615959 |
Apparatus and method for controlling brushless DC motor |
Nov. 10, 2009 |
| 7589487 |
Method of selectable simultaneous/sequential motor drive in a multiple drive circuit including failure detection |
Sep. 15, 2009 |
| 7586283 |
Magnetic encoder device and actuator |
Sep. 8, 2009 |
| 7545110 |
Motor drive control |
Jun. 9, 2009 |
| 7518324 |
Universal motor speed controller |
Apr. 14, 2009 |
| 7508154 |
Integrated motor and resolver including absolute position capability |
Mar. 24, 2009 |
| 7489260 |
Resolver hall decoding circuit |
Feb. 10, 2009 |
| 7466090 |
Apparatus, software and method for controlling the operation of a window covering |
Dec. 16, 2008 |
| 7417411 |
Apparatus and method for monitoring tap positions of load tap changer |
Aug. 26, 2008 |
| 7397207 |
Electric supercharger for vehicle |
Jul. 8, 2008 |
| 7377379 |
Transport belt drive control device, image forming device, and transport belt drive control method |
May. 27, 2008 |
| 7375487 |
Geared motor |
May. 20, 2008 |
| 7323838 |
Motor control method and device thereof |
Jan. 29, 2008 |
| 7319303 |
Method and apparatus for estimating the position of a moving part of a linear actuator |
Jan. 15, 2008 |
| 7317294 |
Pulse generator and method thereof |
Jan. 8, 2008 |
| 7312590 |
Model railroad velocity controller |
Dec. 25, 2007 |
| 7288913 |
Drive wave generation circuit |
Oct. 30, 2007 |
| 7288914 |
Drive wave generation circuit |
Oct. 30, 2007 |
| 7271558 |
Method for the generation of electrical pulses |
Sep. 18, 2007 |
| 7221114 |
Conveyance control apparatus and image forming apparatus |
May. 22, 2007 |
| 7208907 |
System and method of restarting a switched reluctance motor after a rapid cycling of power |
Apr. 24, 2007 |
| 7196489 |
Rotary shaft control apparatus |
Mar. 27, 2007 |
| 7183731 |
Pulse generating method and pulse generator, and motor control system using the same |
Feb. 27, 2007 |
| 7180255 |
Controlling the release of a brush motor which has applied a load |
Feb. 20, 2007 |
| 7135831 |
Method and device for controlling motor |
Nov. 14, 2006 |
| 7132814 |
Method of calculating correction value and method of manufacturing printer |
Nov. 7, 2006 |
| 7088070 |
Resonant scanning mirror driver circuit |
Aug. 8, 2006 |
| 7075262 |
Print control system, print control method, and recording medium having recorded print control program |
Jul. 11, 2006 |
| 7049778 |
Inverter control apparatus and inverter control method |
May. 23, 2006 |
| 7050885 |
Pulse count accumulator for pulse count motor control system |
May. 23, 2006 |
| 7049771 |
Multi-phase carrier signal generator and multi-phase carrier signal generation method |
May. 23, 2006 |
| 7046438 |
Telescope mount having locator system and drive mechanism for locating objects and positioning telescope |
May. 16, 2006 |
| 7042190 |
Motor control apparatus and motor control method |
May. 9, 2006 |
| 7038407 |
Circuit arrangement and method for operation of an electric motor in a DC supply network |
May. 2, 2006 |
| 7038420 |
Method of regulating an electric motor and corresponding electric motor |
May. 2, 2006 |
| 7034490 |
Motor positioning servo loop using oversampling bitstream DAC |
Apr. 25, 2006 |
| 6984954 |
Diagnostic strategy for an electric motor using sensorless control and a position sensor |
Jan. 10, 2006 |
| 6983102 |
Motor control device for vehicular power mirror |
Jan. 3, 2006 |
| 6967459 |
Method for controlling or regulating the current in a direct current machine for a fan |
Nov. 22, 2005 |
| 6956350 |
Resonant scanning mirror driver circuit |
Oct. 18, 2005 |
| 6956343 |
Method of controlling a physical variable in an electronically commutated motor, and motor for carrying out said method |
Oct. 18, 2005 |
| 6911798 |
Rotation angle detecting apparatus for synchronous rotary electric machine |
Jun. 28, 2005 |
| 6912427 |
Programmable limit switch with distributed intelligence |
Jun. 28, 2005 |
| 6876167 |
Method and apparatus for determining the rotational rate of a rotating device |
Apr. 5, 2005 |
| 6853161 |
Recording apparatus, motor control apparatus, and motor control method |
Feb. 8, 2005 |
| 6841954 |
Apparatus and method used in disk drive for driving spindle motor |
Jan. 11, 2005 |
| 6823132 |
Method and apparatus for controlling motor |
Nov. 23, 2004 |
| 6822415 |
Motor controller |
Nov. 23, 2004 |
| 6819074 |
Apparatus and method of controlling a driving speed of a motor |
Nov. 16, 2004 |
| 6812669 |
Resonant scanning mirror driver circuit |
Nov. 2, 2004 |
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