Resources Contact Us Home
System and method for delay calibration in position encoders

Image Number 10 for United States Patent #6639529.

Systems and methods are provided for calibrating a sample delay time between a position request time from a host computer and a position encoder sample time. The position encoder includes a readhead with a transducer and transducer electronics, and encoder interface electronics which exchange data and commands with the readhead and with the host computer. The transducer electronics may lack a clock capable providing a sufficiently consistent sample delay time. To provide a consistent sample delay the interface electronics measures an inherent sample delay time based on signals from the readhead during a calibration mode. The difference between the inherent delay time and the desired delay time is saved and inserted by the interface electronics during position measurement such that the calibrated sample delay time is consistently the desired sample delay time.

  Recently Added Patents
Process for preparing substituted aromatic carboxylic acids
Group control method for machine type communication and mobile communication system using the method
Modular storage system
Volume compensation within a photovoltaic device
Bullet lens design for the dasal seeker
Low offset, fast response voltage controlled current source and controlling method thereof
Rotation angle sensor
  Randomly Featured Patents
Programmable baseband filters supporting auto-calibration for a mobile digital cellular television environment
Fertilizer container for sprinkler system
Method and apparatus for quiet fan speed control
Surveying instrument
Lens driving apparatus
Polymer matrices reinforced with calcium carbonate particulates
Open sided billiard rack
Dielectric frame assembly and fuel cell manifold
Reusable end fitting for convoluted hose
Lighting structure for a flexible extension bar