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.

Date of Patent:
Oct. 07, 2008

Filed:

Mar. 03, 2006
Applicants:

Kazunari Aoyama, Yamanashi, JP;

Kunitaka Komaki, Yamanashi, JP;

Minoru Nakamura, Fujiyoshida, JP;

Takaaki Komatsu, Yamanashi, JP;

Inventors:

Kazunari Aoyama, Yamanashi, JP;

Kunitaka Komaki, Yamanashi, JP;

Minoru Nakamura, Fujiyoshida, JP;

Takaaki Komatsu, Yamanashi, JP;

Assignee:

Fanuc Ltd., Yamanashi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 5/46 (2006.01);
U.S. Cl.
CPC ...
Abstract

A transmission path delay is set in a shift setting register. A slave unit generates a PRE_ITP signal in response to a timing signal (ITP signal) issued by a master unit. The phase difference between this PRE_ITP signal and the ITP signal unique to the slave unit is loaded into a period modification counter. A timer corrects a reference value, outputs position/speed control period signals (SYN signals) and counts down the period modification counter with these SYN signals until the period modification counter reaches zero. Furthermore, the ITP signal unique to the slave unit is outputted every time a predetermined number of the SYN signals are outputted.


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