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
Tiger paw stationary tab
Apparatus and methods for color displays
Electronic apparatus and manufacturing method of electronic apparatus
Stabilization of dicarbonate diesters with protonic acids
Authorization method for location based services
Method and apparatus for establishing a media clip
TPO compositions, articles, and methods of making the same
  Randomly Featured Patents
Angle grinder
Container transport trailer
Method of making integrated circuit embedded with non-volatile programmable memory having variable coupling
DSP line equalizer
Part-holding fixture for grinding wedged optical flats
Highly efficient hybrid process for nitrogen oxides reduction
High speed optical interconnect
Electrical fuze for projectiles
Wireless coupling of devices to wired network
Mobile phone