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公开(公告)号：EP0952500A4
公开(公告)日：2004-09-29
申请号：EP98954791
申请日：1998-11-20
申请人： SEIKO EPSON CORP
发明人： OKEYA MAKOTO , FUJISAWA TERUHIKO , YABE HIROSHI , KITAHARA JOJI , KOJIMA HIROYUKI , SHIMURA NORIAKI
CPC分类号： G04G19/12 , G04C10/00 , Y10T307/799 , Y10T307/858
摘要： A portable electronic device is provided with a carried-state detector which detects whether or not the device is being carried. Wasteful power consumption of the device when not in use can be reduced by shifting the operation of the device from a normal operation mode to a power saving mode while the device is not being carried, namely, while the user does not use the device. The power consumption of an electronic device (timer) incorporating a power generator which generates electric power by converting first energy (motion, pressure, and heat) into second energy, namely, electrical energy, is reduced by detecting whether or not the power generator generates electric power, namely, whether or not the device is being carried by means of a power generation detecting circuit and by shifting the operation of the device to a power saving mode when the no-power generating time of the equipment exceeds a prescribed period of time. Therefore, an electronic device (timer) whose energy consumption can be reduced without giving any inconvenience to the user by shifting the operation of the device to the power saving mode when the device is not carried by the user or when the power generator of the device does not generate electric power even while the device is being carried by the user.
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2.发明公开PIEZOELECTRIC ACTUATOR DRIVE DEVICE, ELECTRONIC DEVICE, DRIVE METHOD THEREOF, DRIVE CONTROL PROGRAM THEREOF, AND RECORDING MEDIUM CONTAINING THE PROGRAM 有权压电致动器驱动，电子设备中，驱动ENSURE驱动控制其程序和记录介质包含程序
公开(公告)号：EP1737114A4
公开(公告)日：2007-04-18
申请号：EP05720478
申请日：2005-03-10
申请人： SEIKO EPSON CORP
CPC分类号： H02N2/062 , G04C3/12 , G04C17/005 , H01L41/0906
摘要： There is provided an electronic device comprising a piezoelectric actuator (A) and a drive control device (100) for controlling drive of the piezoelectric actuator. The drive control device (100) includes: a drive circuit (111) for supplying a drive signal SDR to a piezoelectric element of an oscillator (12); phase difference detection means (120) for detecting a phase difference representing the oscillation state of the oscillator (12); a comparison voltage setting circuit (133) for correcting a target phase difference serving as a target of the oscillation state; and drive frequency setting means (140) for comparing the phase difference to the target phase difference. By modifying the drive frequency of the drive signal SDR so that the phase difference approaches the target phase difference according to the comparison result, it is possible to realize effective drive of the piezoelectric actuator (A) without depending on the drive voltage.
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3.发明公开PIEZOELECTRIC ACTUATOR DRIVE METHOD, PIEZOELECTRIC ACTUATOR DRIVE DEVICE, ELECTRONIC CLOCK, ELECTRONIC DEVICE, PIEZOELECTRIC ACTUATOR DRIVE DEVICE CONTROL PROGRAM, AND STORAGE MEDIUM 有权用于压电致动器，电子时钟，电子装置，驱动ANSTEUEREINRICHTUNGSSTEUERPROGRAMM FOR A压电致动器，驱动器设备，用于压电致动器和储存的装置
公开(公告)号：EP1526634A4
公开(公告)日：2005-06-08
申请号：EP04724766
申请日：2004-03-31
申请人： SEIKO EPSON CORP
发明人： MATSUZAKI JUN , KAWAGUCHI TAKASHI , OKEYA MAKOTO
摘要： A drive device for a piezoelectric actuator, wherein the time needed to achieve highly efficient drive conditions is shortened to reduce power consumption, and stabilized control can be performed. The device has a phase difference detection device (phase difference/voltage conversion circuit ( 51 )) for detecting detection signals of longitudinal oscillation and bending oscillation from an oscillator ( 5 ) and detecting the phase difference between these two signals, frequency control devices ( 52 to 56 ) for comparing the phase difference detected by the phase difference detection device with a standard phase difference value and controlling the frequency of a drive signal sent to a piezoelectric element ( 17 ) on the basis of the results of this comparison, and an amplitude detection device (amplitude detection circuit ( 57 )) for detecting the amplitude of the detection signal of the piezoelectric element ( 17 ). The frequency control device compares the amplitude with a standard amplitude value and controls the frequency of the drive signal on the basis of the results of this comparison.
摘要翻译： 用于压电致动器，worin所需的时间，以实现高效率的驱动条件的驱动装置被缩短，以降低功耗，并且可以进行稳定的控制。 该装置具有用于检测纵向振动的检测信号和从（一个振荡器（5）弯曲振荡和检测论文两条信号，频率控制装置52之间的相位差的相位差检测装置（相位差/电压变换电路（51）） 到56（），用于比较由所述相位差检测装置与标准相位差值检测到的相位差和控制发送给该比较的结果的基础上的压电元件17）的驱动信号的频率，和在振幅 检测装置，用于检测所述压电元件（17）的检测信号的幅度（振幅检测电路（57））。 频率控制装置比较振幅与标准振幅值，并控制该比较的结果的基础上，上述驱动信号的频率。
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公开(公告)号：EP0629834A4
公开(公告)日：1996-07-03
申请号：EP93904373
申请日：1993-03-02
申请人： SEIKO EPSON CORP
发明人： OKEYA MAKOTO , UEKI YASUNORI , ITO NORIO
摘要： A displacement sensor provided with a magnet (4) and magnetoelectric conversion means for sensing the variation of magnetism caused by the magnet to sense the displacement of the magnetic material to be measured. The sensor is provided with a first magnetoelectric conversion means (5) located in the place where the magnetic flux density is varied by the displacement of the material to be measured, a second magnetoelectric conversion means (6) of the same kind as the first magnetoelectric conversion means (5), which is located in the place where the magnetic flux density is not varied by the displacement of the material to be measured, and a circuit means (10) for adding the outputs of the first and second magnetoelectric conversion means at a predetermined ratio. Further, by using the displacement sensor as a base and by adjusting the temperature coefficients of the first and second magnetoelectric conversion means (5), (6), or by adjusting the temperature coefficient of the circuit means (10), the temperature compensation of the displacement sensor is so performed that its temperature coefficient approaches zero. Thereby, its sensing accuracy can be improved in a wide temperature range. The magnet (4), the first and second magnetoelectric conversion means (5), (6), and the circuit means (10) are contained in a case (21) having a heatinsulating structure so that the temperature in the case is kept constant independently of the temperature of the external environment. Optionally by using a case (21) of a material having a high thermal conductivity, the displacement sensor can respond at a high speed to the temperature of the external environment.
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公开(公告)号：EP1098234A4
公开(公告)日：2005-05-11
申请号：EP00925666
申请日：2000-05-15
申请人： SEIKO EPSON CORP
发明人： FUJISAWA TERUHIKO , OKEYA MAKOTO
摘要： When an electronic timepiece is in the power-saving mode for stopping indication of the present time, it is decided whether the charging voltage fed from a large capacitor (48) is higher or lower than a predetermined reference voltage. If it is higher, the large capacitor has stored the electric power necessary for returning from the power-saving mode to the indication mode; therefore, when power generation is detected, the present time-return processing is effected. On the other hand, if the charging voltage is lower than the predetermined reference voltage, supply of the power source voltage to a control circuit is stopped, thereby suppressing wasteful consumption of the electric energy stored in the large capacitor. This ensures that when the power generator starts generation of power, the electronic timepiece is quickly restarted.
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公开(公告)号：EP1055980A4
公开(公告)日：2005-01-19
申请号：EP99959797
申请日：1999-12-14
申请人： SEIKO EPSON CORP
发明人： OKEYA MAKOTO , SHIMURA NORIAKI , KITAHARA JOJI , KOJIMA HIROYUKI , YABE HIROSHI
摘要： An electronic device having a plurality of motors do not cause drop of the power supply voltage and large difference in hand driving timings even when the motors are operated. When the electronic device is an electronic watch having a second motor for driving a second hand and an hour/minute hand motor for driving an hour/minute hand, and when a second auxiliary pulse signal is outputted to the second motor at the driving timing of the second hand, detection of the magnetic field around the hour/minute motor and detection of the rotation of the hour/minute motor are not performed at and after the driving timing of the hour/minute hand. An hour/minute auxiliary pulse signal is outputted to the hour/minute motor to drive the second hand and the hour/minute hand.
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公开(公告)号：EP1093203A4
公开(公告)日：2004-09-08
申请号：EP00912927
申请日：2000-03-29
申请人： SEIKO EPSON CORP
发明人： YABE HIROSHI , OKEYA MAKOTO
CPC分类号： H02J7/0024 , G04C10/00 , G04G19/00 , H02J7/0032 , H02J7/0047 , H02J7/345
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8.发明公开
公开(公告)号：EP1615327A4
公开(公告)日：2007-02-14
申请号：EP05710731
申请日：2005-02-25
申请人： SEIKO EPSON CORP
发明人： KAWAGUCHI TAKASHI , KITAHARA JOJI , OKEYA MAKOTO
摘要： An electronic apparatus (1) provided with a battery (200) and a piezoelectric actuator (A), wherein a power supply voltage before drive starting is held by a sample hold circuit (102), and a reference voltage is set by a reference voltage generating circuit (103) based on this power supply voltage; and a control circuit (106) stops the drive when a power supply voltage is below a drive stop voltage in comparison with a second comparison circuit (105) and resumes the drive of the piezoelectric actuator (A) when a power supply voltage is above a reference voltage in comparison with a first comparison circuit (104). Accordingly, an intermittent drive in conformity with a battery voltage condition can facilitate the downsizing of the apparatus using a small power supply and sufficiently shorten a drive time.
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公开(公告)号：EP1070998A4
公开(公告)日：2004-11-24
申请号：EP99959798
申请日：1999-12-14
申请人： SEIKO EPSON CORP
发明人： YABE HIROSHI , OKEYA MAKOTO
摘要： In making a change from a first state in which an electric charge is being transferred from a secondary power source of large capacity to an auxiliary capacitor through a voltage step-up/down circuit with a step-up/down ratio M' (which is a positive real number other than 1) to a second state in which the secondary power source of large capacity and the auxiliary capacitor are directly electrically connected to each other, the electric energy is transferred from the secondary power source of large capacity to the auxiliary capacitor through the step-up/down circuit in a non-step-up/down state with a step-up/down ratio M = 1, so that the potential difference between the secondary power source of large capacity and the auxiliary capacitor is less than a predetermined potential difference. Therefore, there is no possibility of incurring a sharp power source voltage variation due to a change in step-up ratio, so that malfunction of the electronic apparatus that accompanies a sharp voltage variation of the voltage source can be prevented.
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10.发明公开DISPLACEMENT IN TRANSFER APPARATUS AND DRIVING CONTROLLER OF TRANSFER MEMBER. 失效位置变化在传输的设备和驱动控制器的输送元件。
公开(公告)号：EP0613807A4
公开(公告)日：1994-12-28
申请号：EP92924025
申请日：1992-11-27
发明人： ITO NORIO , SHIMODA TATSUYA , WAKO SUMITAKA , ISHIBASHI TOSHIYUKI , UEKI YASUNORI , OKEYA MAKOTO , MATSUZAWA MITSUHO
摘要： A detector for detecting a relative position between a rope (2) and a guide member (13) in a transfer apparatus including the rope (2) travelling by itself or fixed to a support; the guide member (13) such as a pulley engaging with the rope, and fixed to the support or travelling by itself; a transfer member travelling with the rope (2) or with the guide member (13); and a displacement detector (1) for detecting a relative position between the rope and the guide member, fitted in the proximity of the guide member (13) and keeping a gap with the guide member always constant; wherein the displacement detector (1) includes medium generation means for generating a position detection medium emitted from the detector towards the rope (2) and detection means for detecting the displacement of this medium. The displacement detector (1) includes speed control means (25) for driving the transfer member, and the speed control means (25) controls the speed of the transfer member in accordance with displacement signal from detector (1).
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