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    • 2. 发明授权
    • Zinc oxide ceramics and method for producing the same and zinc oxide
varistors
    • 氧化锌陶瓷及其制造方法及氧化锌压敏电阻
    • US5739742A
    • 1998-04-14
    • US705129
    • 1996-08-29
    • Atsushi IgaMasahiro ItoMasakazu Tanahashi
    • Atsushi IgaMasahiro ItoMasakazu Tanahashi
    • C04B35/453H01C7/112H01C7/10H01C7/13
    • C04B35/453H01C7/112
    • A zinc oxide ceramic and a method for producing the zinc oxide ceramics are provided wherein a zinc oxide varistor for a high voltage which has excellent electric characteristics and great reliability for DC loading and surge can be produced in high yield by performing sintering at a temperature of 750.degree. to 1050.degree. C. At least one of B.sub.2 O.sub.3, Cr.sub.2 O.sub.3, GeO.sub.2, LaO.sub.3, MgO, Nb.sub.2 O.sub.5, Nd.sub.2 O.sub.3, PbO, PrO, Sb.sub.2 O.sub.3, SiO.sub.2, SnO.sub.2, Ta.sub.2 O.sub.5, WO.sub.3 and Y.sub.2 O.sub.3 powders and a Bi.sub.2 O.sub.3 powder are mixed. A mixture thus obtained is heat treated at a temperature of 400.degree. to 700.degree. C. and ground to prepare a synthetic powder. 0.5 to 20 parts by weight of the synthetic powder and 0.1 to 5.0 parts by weight of at least one of CoO, MnO.sub.2 and NiO powders are added and ground for 100 parts by weight of a zinc oxide powder. A binder is added to the ground powder to form a sheet. A silver paste is applied to the surface of the sheet to laminate four sheets. A lamination is integrally sintered at a temperature of 840.degree. C. A zinc oxide varistor of a lamination type comprises an internal silver electrode, an internal silver counter electrode, an effective layer, a noneffective layer, and an external silver electrode.
    • 本发明提供一种氧化锌陶瓷及其制造方法,其特征在于,通过在以下温度下进行烧结,能够高收率地制造具有优异的电特性,高可靠性的高电压用氧化锌变阻器, 750〜1050℃。混合B 2 O 3,Cr 2 O 3,GeO 2,LaO 3,MgO,Nb 2 O 5,Nd 2 O 3,PbO,PrO,Sb 2 O 3,SiO 2,SnO 2,Ta 2 O 5,WO 3和Y 2 O 3粉末和Bi 2 O 3粉末中的至少一种。 将得到的混合物在400〜700℃的温度下进行热处理,研磨成合成粉末。 加入0.5〜20重量份的合成粉末和0.1〜5.0重量份的CoO,MnO 2和NiO粉末中的至少一种,并研磨100重量份的氧化锌粉末。 将粘合剂加入到粉末中以形成片材。 将银膏施加到片材的表面以层压四片。 叠层体在840℃的温度下整体烧结。叠层型氧化锌变阻器包括内部银电极,内部银对电极,有效层,无效层和外部银电极。
    • 3. 发明授权
    • Breaker
    • 断路器
    • US08581128B2
    • 2013-11-12
    • US12953548
    • 2010-11-24
    • Masahiro ItoKatumi YositaniKatsuya Uruma
    • Masahiro ItoKatumi YositaniKatsuya Uruma
    • H01H3/20H01H17/00
    • H01H1/66H01H1/20H01H71/526
    • A breaker includes a contact unit provided in an airtight container. The contact unit has fixed contact points and a movable contact point which selectively contacts with the fixed contact points. Further, the breaker include a movable shaft having a part projecting outward from the airtight container, for moving the movable contact point to and from the fixed contact points, and a metal member for ensuring airtightness of the airtight container. The metal member has one end fixed to the airtight container and the other end fixed to the movable shaft and is extensible and contractible in accordance with the movement of the movable shaft. Moreover, the breaker includes a lever unit for moving the movable shaft between a closed position where the movable contact point is in contact with the fixed contact points and an open position where the movable contact point is separated from the fixed contact points.
    • 断路器包括设置在气密容器中的接触单元。 接触单元具有固定接触点和与固定接触点选择性接触的可动接触点。 此外,断路器包括可移动轴,其具有从气密容器向外突出的部分,用于将活动触点移动到固定触点和从固定触点移动;以及金属构件,用于确保气密容器的气密性。 金属构件的一端固定在气密容器上,另一端固定在可动轴上,并根据活动轴的移动而伸缩。 此外,断路器包括用于在可动触点与固定触点接触的关闭位置和可动触点与固定触点分离的打开位置之间移动可动轴的杠杆单元。
    • 4. 发明授权
    • Malfunction determination device for motor control system
    • 电机控制系统故障判定装置
    • US08525463B2
    • 2013-09-03
    • US12720077
    • 2010-03-09
    • Eiichi HiokaTakashi NakagawaMasahiro Ito
    • Eiichi HiokaTakashi NakagawaMasahiro Ito
    • H02H7/097F02D41/22F01L1/34
    • F02D41/222F02D41/009Y02T10/40
    • A malfunction determination device for a motor control system, outputs a position signal that indicates a moved position of a movable member of a motor and a direction signal that indicates a movement direction of the movable member. The malfunction determination device determines a malfunction has occurred if a relationship between the position signal and the direction signal differs from that when the motor control system is operating normally. The malfunction determination device outputs a pulse signal that varies periodically along with variations in the moved position of the movable member as the position signal; outputs a periodic pulse signal in the same phase with the position signal as the direction signal if the movable member is moving in one direction; and outputs a periodic pulse signal in an opposite phase to the position signal as the direction signal if the movable member is moving in the other direction.
    • 一种电动机控制系统的故障判定装置,输出表示电动机的可动部件的移动位置的位置信号和表示可动部件的移动方向的方向信号。 如果位置信号和方向信号之间的关系不同于电动机控制系统正常运行时故障确定装置确定发生故障。 故障确定装置输出随着可移动部件的移动位置的变化而周期性变化的脉冲信号作为位置信号; 如果可移动部件沿一个方向移动,则以相对于作为方向信号的位置信号以相同相位输出周期性脉冲信号; 并且如果可移动部件沿另一个方向移动,则以与方向信号相反的相位相输出周期性脉冲信号。
    • 6. 发明授权
    • Display device, driving method and computer program for display device
    • 显示装置,显示装置的驱动方法和计算机程序
    • US08456492B2
    • 2013-06-04
    • US12120421
    • 2008-05-14
    • Hidehiko ShidaraKen KikuchiYasuo InoueMasahiro ItoHideto Mori
    • Hidehiko ShidaraKen KikuchiYasuo InoueMasahiro ItoHideto Mori
    • G09G5/10
    • G09G3/20G09G3/3208G09G2320/043G09G2320/046G09G2320/0666G09G2320/0686G09G2320/103G09G2340/16G09G2360/16
    • A display device includes: an average value calculating section which inputs video signals having linear property and calculates an average value of levels of the video signals in each pixel; an average value memory section which sequentially stores the average values calculated by the average value calculating section; a still image determining section which determines whether a still image is displayed on a present screen based on a difference between the average value stored in the average value memory section and a last average value; a coefficient calculating section which, when the determination is made that a still image is displayed on the present screen as a result of the determination in the still image determining section, calculates coefficients for lowering luminance of an image displayed on the display device; and a coefficient multiplying section which multiplies the video signals by the coefficients calculated by the coefficient calculating section.
    • 显示装置包括:平均值计算部,其输入具有线性的视频信号,并计算每个像素中的视频信号的电平的平均值; 平均值存储部,其顺序地存储由所述平均值计算部计算出的平均值; 静止图像确定部,其基于存储在所述平均值存储部中的平均值与最终平均值之间的差来确定是否在当前画面上显示静止图像; 系数计算部,其作为静止图像判定部中的判断结果,当判断为在本画面上显示静止图像时,计算用于降低在显示装置上显示的图像的亮度的系数; 以及系数乘法部分,其将视频信号乘以由系数计算部分计算的系数。
    • 7. 发明授权
    • Display device, display device drive method, and computer program
    • 显示设备,显示设备驱动方法和计算机程序
    • US08427513B2
    • 2013-04-23
    • US12598929
    • 2008-05-15
    • Hidehiko ShidaraKen KikuchiYasuo InoueMasahiro ItoHideto Mori
    • Hidehiko ShidaraKen KikuchiYasuo InoueMasahiro ItoHideto Mori
    • G09G5/10G09G3/30
    • G09G3/20G09G3/3208G09G2320/043G09G2320/046G09G2320/0666G09G2320/0686G09G2320/103G09G2340/16G09G2360/16
    • A display device is provided which includes: a still image detection unit (122) which inputs video signals having linear characteristic and calculates an average value of signal levels of the video signals having linear characteristic per pixel; a storage unit (150) which successively stores the average values calculated by the still image detection unit (122); a still image judging unit (162) which judges whether a still image is displayed on a present screen based on a difference between the average value stored in the storage unit (150) and the last average value; a coefficient calculation unit (164) which calculates coefficients for reducing luminance of an image to be displayed when the still image judging unit (162) has judged that a still image is displayed on the present screen; and a signal level correction unit (128) which multiplies the video signals by the coefficients calculated by the coefficient calculation unit (164).
    • 提供了一种显示装置,包括:静态图像检测单元,其输入具有线性特征的视频信号,并计算每像素具有线性特征的视频信号的信号电平的平均值; 存储单元,其连续地存储由所述静止图像检测单元计算出的平均值; 基于存储在所述存储单元(150)中的平均值与所述最后平均值之间的差异,判断在当前屏幕上是否显示静止图像的静止图像判断单元(162) 系数计算单元(164),当所述静止图像判断单元(162)判断为在当前屏幕上显示静止图像时,计算用于降低要显示的图像的亮度的系数; 以及信号电平校正单元(128),其将视频信号乘以由系数计算单元(164)计算的系数。
    • 10. 发明授权
    • Integrated circuit and device for mobile communications
    • 集成电路和移动通信设备
    • US07996003B2
    • 2011-08-09
    • US11940733
    • 2007-11-15
    • Koji MaedaSatoshi TanakaTaizo YamawakiYukinori AkamineMasahiro Ito
    • Koji MaedaSatoshi TanakaTaizo YamawakiYukinori AkamineMasahiro Ito
    • H04W24/00H04B17/00
    • H04B1/30
    • When generating an RF test signal for mismatch calibration for receiver in order to calibrate reception mismatch of an I-phase signal and a Q-phase signal that are output from demodulated signal processing circuits coupled to mixers for receiving, a Tx VCO avoids covering the higher frequency of an RF received signal in an FDD system. An RF test signal generating unit generates, in a calibration mode of a mismatch calibration for receiver circuit, the RF test signal by using an oscillation output signal of the Tx VCO and other circuits, and supplies the same to the mixers for receiving via a switch. The RF test signal has a frequency within an RF reception frequency band that is higher than that of an RF transmission signal with the maximum frequency band of multiband radio frequency communications. By switching the switch in a reception mode, an output of a low-noise amplifier that amplifies the RF received signal received by an antenna is supplied to each of the mixers for receiving.
    • 为了校准从耦合到混频器进行接收的解调信号处理电路输出的I相信号和Q相信号的接收不匹配,为接收机生成用于失配校准的RF测试信号时,Tx VCO避免覆盖较高的 FDD系统中RF接收信号的频率。 RF测试信号产生单元通过使用Tx VCO和其它电路的振荡输出信号在接收机电路的不匹配校准的校准模式中产生RF测试信号,并将其提供给用于经由开关接收的混频器 。 RF测试信号具有比具有多频带无线电频率通信的最大频带的RF传输信号的RF接收频带内的频率。 通过在接收模式下切换开关,将放大天线接收到的RF接收信号的低噪声放大器的输出提供给每个混频器进行接收。