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:
Jun. 25, 2013
Filed:
Jan. 26, 2010
Jason Tsai, Bloomfield Hills, MI (US);
Eric Wong, Troy, MI (US);
Jianming Tao, Troy, MI (US);
H. Dean Mcgee, Rochester Hills, MI (US);
Hadi Akeel, Bloomfield Hills, MI (US);
Jason Tsai, Bloomfield Hills, MI (US);
Eric Wong, Troy, MI (US);
Jianming Tao, Troy, MI (US);
H. Dean McGee, Rochester Hills, MI (US);
Hadi Akeel, Bloomfield Hills, MI (US);
Fanuc Robotics America, Inc., Rochester Hills, MI (US);
Abstract
A method of and apparatus for achieving dynamic robot accuracy includes a control system utilizing a dual position loop control. An outer position loop uses secondary encoders on the output side of the gear train of a robot joint axis, while the inner position loop uses the primary encoder attached to the motor. Both single and dual loop control can be used on the same robot and tooling axes.