RUSSELL DANE FISH
Pilots at Meadowmoor Rd, Salt Lake City, UT
License number
Utah A4053004
Issued Date
Apr 2015
Expiration Date
Apr 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
1618 Meadowmoor Rd, Salt Lake City, UT 84117
Professional information
Method And System For Spline Interpolation, And Their Use In Cnc
US Patent:
5726896, Mar 10, 1998
Filed:
Aug 29, 1996
Appl. No.:
8/705194
Inventors:
Ji Jia - Salt Lake City UT
Elaine Cohen - Salt Lake City UT
Samuel H. Drake - Salt Lake City UT
Russell D. Fish - Salt Lake City UT
Elaine Cohen - Salt Lake City UT
Samuel H. Drake - Salt Lake City UT
Russell D. Fish - Salt Lake City UT
Assignee:
University of Utah Research Foundation - Salt Lake City UT
International Classification:
G06F 1900, G06G 766
US Classification:
36447429
Abstract:
An iterative spline interpolation method for a numerically-controlled machine tool device is disclosed. The non-uniform rational B-spline (NURBS) curve inputted to the numerically-controlled machine tool is interpolated with a constant step size providing the ability to maintain a controlled velocity to within a specified tolerance. In addition, the distance left to travel on the curve is obtained by a unique spline node-based approximation method providing accurate acceleration and deceleration control. The rational spline interpolation method provides significant reduction in the amount of data required to produce smoothly machined pieces while providing accurate machining of conic sections not possible by previous spline interpolation methods.