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
Link establishment in a wireless communication environment
Closed-loop adaptive adjustment of pacing therapy based on cardiogenic impedance signals detected by an implantable medical device
In-vehicle communication system and method of operation
Fuel cell module
Deceleration dependent shift control
Apparatus and method for transmitting and receiving data
Container pack
  Randomly Featured Patents
Nursing bottle holder
MRI apparatus with a piezo actuator in a non-rigid suspension of the gradient coil carrier
Shielded serpentine traveling wave tube deflection structure
Soft nose hammer and manufacture thereof
Thermal indicators for smoking articles and the method of application of the thermal indicators to the smoking article
Fast curing phenolic resin for making plywood
Micrornas that regulate muscle cell proliferation and differentiation
Method and apparatus for improving dynamic range in a communication system
Container lid with bag securing apron