公开(公告)号：US06820018B2

公开(公告)日：2004-11-16

申请号：US10228522

申请日：2002-08-27

申请人： Masato Akitaya ,  Yumiko Yamaguchi

发明人： Masato Akitaya ,  Yumiko Yamaguchi

IPC分类号： H01H4300

CPC分类号： G06F1/3203

摘要： Disclosed is a power control circuit utilizable in an electronic device. The power control circuit includes a power on/off switch having first and second switches; a capacitive element connected to a power section via the first switch; a first switching element connected to the power section via the second switch; a microcomputer for controlling power on/off of the first switching element; and a second switching element provided between the power section and each of the microcomputer and a predetermined circuit block. The microcomputer is programmed to control the power control circuit such that, when supplying power to the microcomputer, the microcomputer holds a power-on state of the first switching element before the first switching element is turned off because of the discharge of the electric charge, and then, when the microcomputer detects that the predetermined circuit block has not operated for a given period of time, the microcomputer turns off the first switching element.

摘要翻译： 公开了一种可用于电子设备的功率控制电路。 电源控制电路包括具有第一和第二开关的电源接通/断开开关; 经由所述第一开关连接到电源部分的电容元件; 经由所述第二开关连接到所述功率部的第一开关元件; 微型计算机，用于控制第一开关元件的电源接通/断开; 以及设置在功率部分和每个微计算机之间的第二开关元件和预定的电路块。 微型计算机被编程为控制功率控制电路，使得当向微型计算机供电时，由于电荷的放电，微型计算机在第一开关元件断开之前保持第一开关元件的通电状态， 然后，当微型计算机检测到预定电路块未运行给定时间时，微型计算机关闭第一开关元件。

公开(公告)号：US6079652A

公开(公告)日：2000-06-27

申请号：US211359

申请日：1998-12-14

申请人： Masato Akitaya

发明人： Masato Akitaya

IPC分类号： G11B27/17 ,  G01B21/08 ,  G11B15/093 ,  G11B15/46 ,  G11B33/10 ,  B65H59/38

CPC分类号： G11B15/46 ,  G01B21/08 ,  G11B33/10

摘要： A tape-thickness measuring method is used in a tape running apparatus in which a tape runs between a supply reel and a take-up reel. In the method, rotation periods of the supply reel and the take-up reel are detected when the take-up reel rotates predetermined numbers of revolutions, a number of turns of the tape remaining on the supply reel is calculated by using the thus-detected rotation periods, and a thickness of the tape is calculated by using the thus-calculated number of turns of the tape remaining on the supply reel.

摘要翻译： 磁带厚度测量方法用于其中磁带在供带盘和卷取卷轴之间运行的带运行装置中。 在该方法中，当卷取卷轴旋转预定转数时，检测供带盘和卷取卷轴的旋转周期，通过使用这样检测来计算剩余在供带盘上的卷数 旋转周期，并且通过使用如此计算的剩余在供带盘上的带的匝数来计算带的厚度。

公开(公告)号：US06542323B1

公开(公告)日：2003-04-01

申请号：US09568314

申请日：2000-05-09

申请人： Masato Akitaya

发明人： Masato Akitaya

IPC分类号： G11B1546

CPC分类号： G11B15/46 ,  G01B21/08 ,  G11B33/10

摘要： A tape running control method in which a tape runs between a supply reel and a take-up reel, and a rotation speed of said take-up reel is controlled by using rotation periods of said supply reel and said take-up reel, whereby a running speed of said tape is controlled. The method comprises the steps of detecting a thickness of said tape; calculating a predetermined total tape wound amount by using the detected thickness of said tape; and controlling the rotation speed of said take-up reel by using the thus-calculated total tape wound amount.

摘要翻译： 一种磁带运行控制方法，其中磁带在供带盘和卷取卷轴之间延伸，并且通过使用所述供带盘和所述卷取卷轴的旋转周期来控制所述卷取卷轴的旋转速度，由此 控制所述带的运行速度。 该方法包括检测所述带的厚度的步骤; 通过使用检测到的所述带的厚度来计算预定的总带缠绕量; 以及通过使用这样计算的总带卷量来控制所述卷取卷轴的转速。