公开(公告)号：US20120001584A1

公开(公告)日：2012-01-05

申请号：US13172206

申请日：2011-06-29

Applicant: Kazuo TAKADA ,  Takayuki MATSUI

Inventor： Kazuo TAKADA ,  Takayuki MATSUI

IPC: H02P8/38

CPC classification number: H02P8/38 ,  H02P8/24

Abstract: A motor control device for a stepping motor including at least two phase coils and a rotor is provided. The motor control device includes a control unit which applies a pulse voltage subjected to pulse width modulation, to each of the at least two phase coils, a back electromotive voltage measuring unit which provides a halt period to temporarily halt the application of the pulse voltage to one of the phase coils when a direction of the coil current flowing in the one phase coil is switched, and which measures a back electromotive voltage induced in the one phase coil during the halt period, an out-of-step detecting unit which detects an out-of-step of the stepping motor if the measured back electromotive voltage satisfies a predetermined criterion, and a voltage control unit which sets a voltage for all phase coils other than the one phase coil to a constant voltage during the halt period.

Abstract translation: 提供一种用于包括至少两个相位线圈和转子的步进电动机的电动机控制装置。 电动机控制装置包括对至少两个相位线圈中的每一个施加经受脉冲宽度调制的脉冲电压的控制单元，提供停止时间以暂时停止施加脉冲电压的反电动势电压测量单元 切换在一相线圈中流动的线圈电流的方向的相线圈中的一个，并且测量在停止时段期间在一相线圈中感应的反电动势电压的失步检测单元，其检测 如果所测量的反电动势电压满足预定标准，则步进电机的步进失调;以及电压控制单元，其在停止时段期间将除了一相线圈之外的所有相线圈的电压设定为恒定电压。

公开(公告)号：US20090227282A1

公开(公告)日：2009-09-10

申请号：US12367770

申请日：2009-02-09

Applicant: Naoki MIYABAYASHI ,  Yoshihiro YONEDA ,  Isao SOMA ,  Kazuo TAKADA ,  Seiji KURODA ,  Yasuharu ISHIKAWA ,  Masahiro SUEYOSHI

Inventor： Naoki MIYABAYASHI ,  Yoshihiro YONEDA ,  Isao SOMA ,  Kazuo TAKADA ,  Seiji KURODA ,  Yasuharu ISHIKAWA ,  Masahiro SUEYOSHI

IPC: H04M1/00

CPC classification number: H04L63/18 ,  H04L63/0492 ,  H04L63/08 ,  H04W4/21 ,  H04W12/06 ,  H04W92/18

Abstract: A communication device has a first communication section that supports a first communication mode having a low communication rate and a second communication section that supports a second communication mode having a higher communication rate than the first communication mode. The communication device includes a packet generation section and a communication control section. The packet generation section generates a first portion containing authentication information used for connection authentication for the second communication mode and a second portion other than the first portion. The communication control section performs control to cause the first communication section to transmit the first portion and to cause the second communication section to transmit the second portion after the connection authentication succeeds using the authentication information contained in the first portion.

Abstract translation: 通信装置具有支持具有低通信速率的第一通信模式的第一通信部分和支持具有比第一通信模式更高通信速率的第二通信模式的第二通信部分。 通信设备包括分组产生部分和通信控制部分。 分组产生部分生成包含用于第二通信模式的连接认证的认证信息的第一部分和除了第一部分之外的第二部分。 通信控制部进行控制，使得第一通信部发送第一部分，并且在使用包含在第一部分中的认证信息进行连接认证成功之后使第二通信部发送第二部分。