Resources Contact Us Home
Position dependent rate dampening in any active hand controller

Image Number 3 for United States Patent #5347204.

A control system for an active hand controller, for example, uses a control stick connected to and controlled by a motor. Electronics are provided to control the motor to eliminate oscillations due to motor torque and high gain due to breakout at the control stick when the control stick is at about its null position. Both hardware as well as software implementations can provide position dependent dampening to the control sticks such that when the control stick is located about a null position, a higher rate of dampening is provided than when the control stick is located outside the null position, when a lower rate of dampening is provided. The system provides a stable active hand controller control stick without degraded force and feel characteristics of the system.

  Recently Added Patents
Transporting business intelligence objects between business intelligence systems
Battery comprising circuitry for charge and discharge control, and method of operating a battery
Phosphonate compounds
Method and system for triggering message waiting indicator delivery
Magnetic reading and writing device
Coupling device having piercing member
Method and apparatus for interactive distribution of digital content
  Randomly Featured Patents
Benz[f]isoindoline compounds
Scheduler for a multiprocessing computing system
Digital image processing with indication to user of hardcopy output image quality
Side-flexing conveyor chain with pivoting slats and related methods
Electrofluidic pin transducer with stable null setting
Furnace wall construction for industrial use
Resins of low thermal expansivity
Sample display package
Electrophotographic photoconductor
Reaction injection molding based on diethyl methylene diphenyl diisocyanate