3,875,488 4/1975 Crocker et al. 318/648 0 “Pu' P... q. 3'.. y 379197691 11/1975 N011
____________ __ _ 340/1725 and/or acceleration 1nformat1on describing motion of a user …

Algorithms for constructing velocity approximations from discrete position versus time data
are investigated. The study is limited to algorithms suitable to provide velocity information in …

CaC A force feedback interface including a haptic accelerator that relieves the
computational burden associated with force (21) Appl. No.: 09/414,294 feedback generation …

Optical incremental encoders are extensively used for position measurements in motion
systems. The position measurements suffer from quantization errors. Velocity and …

Because each of the position transducers commonly used in industry, ie, encoders and
resolvers, do not inherently measure an instantaneous velocity, some signal processing …

An interface device providing haptic feedback to a user is in communication With a host
computer. The device includes a housing, at least one sensor for detecting user input, and …

Differential computation is necessary in velocity determination using carrier phase
measurements from the global navigation satellite system (GNSS). A method of nonlinear …

The performance of modern motion control systems is strongly related to the resolution of the
position sensor and to the digital filtering algorithm used to estimate the velocity. This brief …

Embodiments of high-resolution optical encoderS having phased-array photodetectors and
integrated on Semiconduc tor chips. Emitters, detectors, and encoders disks are described …

This paper comparatively evaluates the effect of real-time velocity estimation methods on the
passivity and fidelity of virtual walls implemented using haptic interfaces. Impedance width …