Resources Contact Us Home
Method and system of detecting eccentricity and up/down movement of a code wheel of an optical encoder set

Image Number 4 for United States Patent #7304295.

A system and method of measuring a rotational motion of a code wheel measures a rotational movement of the code wheel including an error component due to a non-rotational movement of the code wheel; measures the non-rotational movement of the code wheel; and produces an error-corrected measurement of the rotational movement of the code wheel by using the measured non-rotational movement of the code wheel to cancel the error component of the measured rotational movement of the code wheel. A signal can be produced indicating a need for maintenance when the non-rotational movement of the code wheel exceeds a threshold.

  Recently Added Patents
Spalling utilizing stressor layer portions
Polyester resin for toner, electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming met
Low temperature pressure chamber unit, magnetic resonance device with a low temperature pressure chamber unit, and an attachment method to attach at least one add-on unit to an external housin
Apparatus and method for information display of portable device
Nonaqueous secondary battery with nitrile group-containing compound
Processor engine, integrated circuit and method therefor
Cartridge for separating analyte from mixture, comprising dispensing and receiving chambers and insert
  Randomly Featured Patents
Method and apparatus for optimizing memory usage in an imaging device
Unitary turbine/compressor engine
Wetlaid unitary stratified composite containing absorbent material
Herbicidal composition for the control of epiphytic weeds
Method for removing essential oils and antioxidants from extract products of lamiaceae species using rolled film evaporation
Method for providing nutrition to elderly patients
Greeting card calendar
Transmit scaling using multiple queues
Coated film with exceptional embossing characteristics and method for producing it
Flexible printed circuit and display module comprising the same