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. 01, 2010
Filed:
Aug. 07, 2006
Toshiki Moriguchi, Nagaokakyo, JP;
Takeshi Murakami, Kyoto, JP;
Toshiki Moriguchi, Nagaokakyo, JP;
Takeshi Murakami, Kyoto, JP;
Murata Kikai Kabushiki Kaisha, Kyoto-shi, JP;
Abstract
When dot-sequential data indicating a temporal variation in position, speed, or acceleration is stored in a memory in an automated guided vehicle as it is, the capacity of the memory is insufficient and thus needs to be increased. A pattern is mounted in a stacker crane; the pattern is drawn by dot-sequential data indicating a temporal variation in acceleration (FIG.C), and corresponds to an instruction value provided to an actuator installed in the stacker crane. In this case, a curve function corresponding to an approximate expression for the dot-sequential data is derived in a form of a Fourier series having a finite number of terms and using time as an independent variable and the position, speed, or acceleration as a dependent variable. Data identifying the Fourier series, having a finite number of terms, is stored in a memorymounted in the stacker crane