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
Method and apparatus for generating soft bit values in reduced-state equalizers
Method and system for monitoring service quality in a mobile node
Method and apparatus for disease diagnosis and screening using extremely low frequency electromagnetic fields
High-frequency power amplifier
Bi-level switching with power packs
Removable storage device and method for identifying drive letter of the removable storage device
Wideband multi-channel receiver with fixed-frequency notch filter for interference rejection
  Randomly Featured Patents
Integrated SCR electrostatic precipitator
Overlaid images on TV
Methods and compositions for enhanced protein expression and purification
Method for actuation of injection molding shooting pots
Jewelry piece
Hydraulic actuator
Split cable seal
Drag bits with dropping tendencies and methods for making the same
Excavator tooth
Method of boron diffusion into semiconductor wafers having reduced stacking faults