Resources Contact Us Home
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
Authenticated secret sharing
Method and apparatus for eliminating a motor vehicle tip-over risk
Display screen or portion thereof with graphical user interface
Prevention and treatment of oxidative stress disorders by gluthathione and phase II detoxification enzymes
Fixing apparatus
Package for product
Solar powered charging shelter and system and method thereof
  Randomly Featured Patents
Eye examining apparatus
Endovascular stent graft
Water aeration apparatus
Outsole for snowboard boot
Openable covering construction for pergolas, verandas and the like
Model railroad assembly
Apparatus for fusion joining plastic pipe
Chronotherapy exercise technique
Clutch driver
Density and velocity based assessment method and apparatus