The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 04, 1990
Filed:
Jun. 16, 1988
Harvard I Vold, Milford, OH (US);
James D Farrell, Cincinnati, OH (US);
Robotics Research Corporation, Milford, OH (US);
Abstract
A linkage mechanism, such as an industrial robot, comprises an electronic motion controller and a set of self-driven joints. A controller receives a series of end effector positions from memory or from a host control system which define a routine for the mechanism to execute in relation to a predetermined reference frame such as cartesian coordinates. Angular values for the joints are computed in real time which follow the predetermined reference frame values in a manner which avoids the problems of singularities and which efficiently accommodates kinematic redundancy. A corresponding drive signal is generated for each joint.