Master device that changes data communication speed when preparation to drive motor is completed

US9361260B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9361260-B2
Application numberUS-201313916684-A
CountryUS
Kind codeB2
Filing dateJun 13, 2013
Priority dateJun 26, 2012
Publication dateJun 7, 2016
Grant dateJun 7, 2016

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  1. Title

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  2. Abstract

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  5. First independent claim

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Abstract

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A first communication speed setting unit sets a data communication speed of data transmitted and received between the master device and the slave device during the period from the time when the master device is activated to the time when the preparation to drive the motors is completed, to a first communication speed. A second communication speed setting unit sets a data communication speed of data transmitted and received between the master device and the slave device when the preparation to drive the motor is completed, to a second communication speed lower than the first communication speed. A change notification unit notifies the change of the data communication speed from the first communication speed to the second communication speed to the slave device.

First claim

Opening claim text (preview).

The invention claimed is: 1. A master device that is connected to a slave device via a serial communication bus for carrying out data transmission and reception in order to control motors connected via an inverter to a DC link part, which is connected to an alternating-current power source via a converter, the master device comprising: a first communication speed setting unit configured to set a data communication speed of data transmitted and received between the master device and the slave device during the period from the time when the master device is activated to the time when the preparation to drive the motors is completed, to a first communication speed; a second communication speed setting unit configured to set a data communication speed of data transmitted and received between the master device and the slave device when the preparation to drive the motors is completed, to a second communication speed lower than the first communication speed; a change notification unit configured to notify the change of the data communication speed from the first communication speed to the second communication speed to the slave device; and a bandwidth change unit configured to change a bandwidth of a band variable filter provided in at least one of the master device and the slave device in order to remove noise received in the serial communication from a first bandwidth to a second bandwidth narrower than the first bandwidth, in accordance with the change of the data communication speed from the first communication speed to the second communication speed, in order to remove noise received in the serial communication.

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What does patent US9361260B2 cover?
A first communication speed setting unit sets a data communication speed of data transmitted and received between the master device and the slave device during the period from the time when the master device is activated to the time when the preparation to drive the motors is completed, to a first communication speed. A second communication speed setting unit sets a data communication speed of …
Who is the assignee on this patent?
Fanuc Corp
What technology area does this patent fall under?
Primary CPC classification G06F13/4068. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Jun 07 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).