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Class Information
Number: 250/231.13
Name: Radiant energy > Photocells; circuits and apparatus > Optical or pre-photocell system > Light valve (e.g., iris diaphragm) > Actuated by dynamic external physical quantity > Shaft angle transducers
Description: Subject matter wherein the angular position or speed or a rotatable shaft is the active external physical quantity sensed by one or more photocells and an output is generated which is indicative of those parameters.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7087889 |
Rotational angle detecting apparatus and torque detecting apparatus |
Aug. 8, 2006 |
| 7082669 |
Method of manufacturing a substrate of a rotary encoder |
Aug. 1, 2006 |
| 7075057 |
Method of generating an index signal for an optical encoder |
Jul. 11, 2006 |
| 7071461 |
Optical encoder having telecentric optical system |
Jul. 4, 2006 |
| 7065966 |
Position control method by motor drive and control unit |
Jun. 27, 2006 |
| 7067797 |
Optical position encoder having alignment indicators providing quantitative alignment indications |
Jun. 27, 2006 |
| 7067796 |
Integrated circuit for optical encoder |
Jun. 27, 2006 |
| 7060969 |
Rotating machine having rotation sensors |
Jun. 13, 2006 |
| 7060968 |
Method and apparatus for optical encoding with compressible imaging |
Jun. 13, 2006 |
| 7057159 |
Emitting light source apparatus for use in optical encoder |
Jun. 6, 2006 |
| 7057160 |
Optical encoder and output adjustment for the same |
Jun. 6, 2006 |
| 7057161 |
Position measuring device |
Jun. 6, 2006 |
| 7057162 |
Apparatus and method for positioning an optical component |
Jun. 6, 2006 |
| 7057163 |
Optical position sensing device |
Jun. 6, 2006 |
| 7053361 |
Projection encoder with moving side gratings and fixed side gratings |
May. 30, 2006 |
| 7049578 |
Optical movement information detector, movement information detection system, electronic equipment and encoder |
May. 23, 2006 |
| 7045770 |
Sensor using roof mirror/roof prism array scale, and apparatus equipped with the sensor |
May. 16, 2006 |
| 7045769 |
Optical encoders for position measurements |
May. 16, 2006 |
| 7042368 |
Automated meter reader device having optical sensor with automatic gain control |
May. 9, 2006 |
| 7041961 |
Device for measurement of rotational angle of two components relative to each other |
May. 9, 2006 |
| 7038192 |
Optical sensor method, system and apparatus |
May. 2, 2006 |
| 7034281 |
Position encoder for measuring the position of two objects movable relative to one another |
Apr. 25, 2006 |
| 7034282 |
Optical rotary encoder |
Apr. 25, 2006 |
| 7030368 |
Method for operating a position measuring device and position measuring device suitable therefor |
Apr. 18, 2006 |
| 7026604 |
Vernier-scaled high-resolution encoder |
Apr. 11, 2006 |
| 7026734 |
Timing disc fixing |
Apr. 11, 2006 |
| 7022974 |
Sensor using roof mirror/roof prism array scale, and apparatus equipped with the sensor |
Apr. 4, 2006 |
| 7019281 |
Rotation angle detection apparatus and rotary disk for same |
Mar. 28, 2006 |
| 7012677 |
Optoelectronic angle measuring instrument and method for its production |
Mar. 14, 2006 |
| 7012703 |
Automatic encoder resolution calibration and length measurement system and method |
Mar. 14, 2006 |
| 7012704 |
Position detecting device |
Mar. 14, 2006 |
| 7002137 |
Reference point talbot encoder |
Feb. 21, 2006 |
| 6999179 |
Optical encoder |
Feb. 14, 2006 |
| 6998631 |
Dual-headed, adjustable optoelectronic image reader |
Feb. 14, 2006 |
| 6998601 |
Dual-axis optical encoder device |
Feb. 14, 2006 |
| 6992278 |
Homing process |
Jan. 31, 2006 |
| 6987619 |
Lens array package and fabrication method |
Jan. 17, 2006 |
| 6977368 |
Method for measuring position and position measuring device for carrying out said method |
Dec. 20, 2005 |
| 6974949 |
Position sensor with an optical member of varying thickness |
Dec. 13, 2005 |
| 6975408 |
Reflection scale and displacement measurement apparatus using the same |
Dec. 13, 2005 |
| 6972403 |
Position encoder |
Dec. 6, 2005 |
| 6972402 |
Photoelectric rotary encoder |
Dec. 6, 2005 |
| 6970255 |
Encoder measurement based on layer thickness |
Nov. 29, 2005 |
| RE38882 |
Angle measuring system with a clampable shaft |
Nov. 22, 2005 |
| 6963064 |
Multi-resolution reflective optical incremental encoder |
Nov. 8, 2005 |
| 6963063 |
Use of non-interdigitated commutation sensors on Opto-ASICS to achieve low CPR non-standard encoder resolutions |
Nov. 8, 2005 |
| 6960758 |
Encoder system and method of assembling an encoder system |
Nov. 1, 2005 |
| 6958468 |
Beam rotation angle detecting apparatus, rotation detecting apparatus and beam rotation angle detecting method |
Oct. 25, 2005 |
| 6956198 |
Rapid high resolution position sensor for auto steering |
Oct. 18, 2005 |
| 6946648 |
Opto-electronic device for angle generation of ultrasonic probe |
Sep. 20, 2005 |
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