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

Image Number 5 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
Apparatus and method for noise removal by spectral smoothing
Selecting one of a plurality of print modes based on pixel coverage of a document
Parallel power inverter motor drive system
Compounds and their salts specific to the PPAR receptors and the EGF receptors and their use in the medical field
Cooking device and method of manufacture of the same
Method and apparatus for selective decoding in a wireless communication system
Headset electronics
  Randomly Featured Patents
Acrylic adhesive composition and organoboron initiator system
Optical fiber coating apparatus
Method of sealing separators for electrolytic cells for alkali metal chloride brines
Automatic speech recognition using echo cancellation
Apparatus for producing acicular iron or iron alloy particles
Dioxasilepin and dioxasilocin stabilizers
Device for cutting threads in circular stocking knitting machines
Range processor for DME
Monomodal optical fibre hydrophone operating by the elastooptical effect
Pattern inspecting apparatus