Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Optically powered resolver










Image Number 3 for United States Patent #4833317.

An optically powered resolver for detecting an optical property of an encoder at a plurality of encoding sites on the encoder, to permit determination of the position or other state of the encoder. Each encoding site is capable of receiving an optical encoder input signal and of modulating the encoder input signal to produce an optical encoder output signal. The resolver includes a photocell for converting the optical input signals into corresponding electrical input signals, and an energy storage circuit for storing a portion of the energy of the electrical input signals. The resolver also includes an interrogation circuit for interrogating a selected encoding site with an encoder input signal in response to the receipt of an optical input signal by the resolver. Interrogation means provides an optical output signal corresponding to the resulting encoder output signal. The interrogation circuit sequentially changes the selected encoding site as optical input signals are received, and the resolver preferably operates without any external source of electrical power.








 
 
  Recently Added Patents
Magnetic recording medium, information storage device, and method of manufacturing magnetic recording medium
Method, apparatus and computer program product for providing metadata entry
Method for determining an object class of an object, from which light is emitted and/or reflected to a vehicle
Buffering stop structure and corresponding packing case
Clock distribution circuit
Pipette device
Image scanning apparatus and image forming apparatus
  Randomly Featured Patents
System, method, and apparatus for acid fracturing with scale inhibitor protection
High speed blank set-up apparatus and methods
Miniature motor
High strength zirconium alloys containing bismuth
File management method and storage system
Method for assembling rotor of permanent magnet motor
Collaborative conferencing circuit
Web server controls for web enabled recognition and/or audible prompting
Semiconductor memory device
Method for pre-fetching data chunks of an email attachment on a portable electronic device