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:
Nov. 01, 2016
Filed:
Sep. 07, 2010
Michael Stewart Griffith, Chelmsford, GB;
Imdad Sajjad Badruddin Sardharwalla, Chelmsford, GB;
Michael Stewart Griffith, Chelmsford, GB;
Imdad Sajjad Badruddin Sardharwalla, Chelmsford, GB;
BAE SYSTEMS plc, London, GB;
Abstract
A method and apparatus for compensating for hysteresis in a system, the method comprising: determining a required input to the system from an output of the system using the Preisach model with the input of the Preisach model corresponding to the output of the system, and with the output of the Preisach model corresponding to the input of the system. The system may be an adaptive optics system. The input x may be an input voltage of an actuator that deforms a mirror, and the output y may be a value of a displacement of a mirror.