Surface acoustic wave device
    31.
    发明授权
    Surface acoustic wave device 有权
    表面声波装置

    公开(公告)号:US07382217B2

    公开(公告)日:2008-06-03

    申请号:US11291910

    申请日:2005-12-02

    IPC分类号: H03H9/19

    摘要: A surface acoustic wave device is provided. The surface acoustic wave device includes a piezoelectric substrate and an IDT which is disposed on the piezoelectric substrate and made of Al or an alloy containing Al as a main component and using an SH wave as an excitation wave, wherein the piezoelectric substrate is a rotated Y-cut quartz plate having a cut angle θ set to a range of −64.0°

    摘要翻译: 提供表面声波装置。 表面声波装置包括压电基片和IDT,其设置在压电基片上,由Al或含Al的合金作为主要成分,并使用SH波作为激发波,其中压电基片为旋转Y 切割角度θ设定在从Z轴方向逆时针旋转的-64.0°<-49.3°的范围内,并且将声表面波的传播方向设定为90°±5°的方向, 相对于X晶轴,其中当激发的表面声波的波长用λ表示时,用IDT的波长标准化的电极膜厚度H /λ被设定为0.04

    INFORMATION PROCESSING APPARATUS AND METHOD, AND COMPUTER PROGRAM
    32.
    发明申请
    INFORMATION PROCESSING APPARATUS AND METHOD, AND COMPUTER PROGRAM 有权
    信息处理设备和方法以及计算机程序

    公开(公告)号:US20070033421A1

    公开(公告)日:2007-02-08

    申请号:US11427163

    申请日:2006-06-28

    IPC分类号: G06F12/14

    摘要: An information processing apparatus for processing encrypted data input as a byte stream with dynamically changing decryption keys includes the following elements. An encrypted data receiving section receives encrypted data input as a byte stream, identifies a range of data that is decrypted using an identical key as a unit of decryption, extracts information necessary for decryption from the byte stream, and outputs encrypted data sets in which the extracted information is added to segments of the encrypted data. An encrypted data decrypting section sequentially decrypts the encrypted data by queuing the encrypted data sets while distributing the encrypted data sets to generate plaintext data. A plaintext processing section processes the generated plaintext data.

    摘要翻译: 用于处理作为具有动态改变的解密密钥的字节流输入的加密数据的信息处理装置包括以下要素。 加密数据接收部分接收作为字节流输入的加密数据,使用相同密钥解密的数据范围作为解密单元,从字节流中提取解密所需的信息,并输出加密数据集, 提取的信息被添加到加密数据的段。 加密数据解密部分通过排队加密的数据集来顺序解密加密的数据,同时分发加密数据集以产生明文数据。 明文处理部分处理生成的明文数据。

    Active suspension apparatus for a vehicle
    34.
    发明授权
    Active suspension apparatus for a vehicle 失效
    用于车辆的主动悬挂装置

    公开(公告)号:US5322319A

    公开(公告)日:1994-06-21

    申请号:US965707

    申请日:1992-10-23

    IPC分类号: B60G17/0165 B60G17/06

    摘要: An active suspension apparatus is provided for a vehicle which includes an actuator being extensible and retractable and provided between a vehicle body and a wheel so that the force of the vehicle body to support the wheel is adjustable, a sprung G sensor or a vehicle height sensor for detecting a vibration input to the vehicle body, and a control valve and a controller for controlling the supporting force of the actuator in accordance with the vibration input detected by the sprung G sensor or the vehicle height sensor, and thereby restraining the stroke of the actuator. The suspension apparatus further comprises a forward road surface sensor for detecting the size of irregularities of a road surface in front of the vehicle, and the control valve and the controller are adapted to execute normal control such that the equivalent spring constant of the actuator is adjusted to a first spring constant when a surface irregularity of a size larger than a predetermined size is detected by the forward road surface sensor, and to execute inverse spring control such that the equivalent spring constant of the actuator is adjusted to a second spring constant lower than the first spring constant, and thereby lengthening the stroke of the wheel, when no surface irregularity of a size larger than the predetermined size is detected by the forward road surface sensor. As a result, the ride is greatly improved when the vehicle runs on a smooth road.

    摘要翻译: 本发明提供一种主动式悬架装置,其特征在于,具备能够伸缩地设置在车身与车轮之间的致动器,能够调整车身支撑车轮的力的可调节的弹簧G传感器或车高传感器 用于检测输入到车身的振动;以及控制阀和控制器,用于根据由弹簧G传感器或车高传感器检测到的振动输入来控制致动器的支撑力,从而抑制 执行器。 悬挂装置还包括前方路面传感器,用于检测车辆前方的路面的不规则尺寸,并且控制阀和控制器适于执行正常控制,使得调节致动器的等效弹簧常数 当通过前方路面传感器检测到大于预定尺寸的尺寸的表面不规则时,执行反向弹簧控制,使得致动器的等效弹簧常数被调节到低于 第一弹簧常数,从而当没有通过前方路面传感器检测到大于预定尺寸的尺寸的表面不规则时,延长车轮的行程。 结果,当车辆在平稳的道路上行驶时,骑行大大改善。

    Electrodes and their lead structures of an ultrathin piezoelectric
resonator
    35.
    发明授权
    Electrodes and their lead structures of an ultrathin piezoelectric resonator 失效
    电极及其超导压电谐振器的引线结构

    公开(公告)号:US5235240A

    公开(公告)日:1993-08-10

    申请号:US809512

    申请日:1992-01-24

    摘要: In an ultrathin piezoelectric resonator including an ultrathin vibratory portion and thick frame-like marginal portion formed integrally therewith for supporting it around, an electrode and an electrode lead pattern extending therefrom are provided on one surface of the vibratory portion and an electrode is provided on the other surface of the vibratory portion in an area except at least an area corresponding to the electrode lead pattern, thereby preventing that a capacitor is formed between the electrode and the electrode pattern deposited on the opposite surfaces of the vibratory portion and increases the parallel capacitance of the resonator. The electrode lead pattern is formed narrow to reduce an ohmic loss and suppress a spurious resonance. A through hole is made in the frame-like marginal portion and extends therethrough in its thickwise direction. By electrically connecting via the through hole an electrode lead portion on one surface of the frame-like marginal portion and a terminal pad on the other surface thereof, it is possible to ensure good conduction between a conductive film on the bottom of a resonator package and the electrode on the said other surface of the vibratory portion on the side where a cavity is provided.

    摘要翻译: PCT No.PCT / JP91 / 00615 Sec。 371日期:1992年1月24日 102(e)日期1992年1月24日PCT 1991年5月9日PCT PCT。 WO91 / 19351 PCT出版物 日本1991年12月12日。在包括超薄振动部分和与其一体形成的厚框架状边缘部分的超薄压电谐振器中,用于支撑其周围的电极和电极引线图案设置在振动部分的一个表面上 并且在至少与电极引线图案对应的区域以外的区域中的振动部分的另一个表面上设置电极,从而防止在电极和沉积在振动体的相对表面上的电极图案之间形成电容器 并增加谐振器的并联电容。 电极引线图案形成得窄,以减少欧姆损耗并抑制寄生共振。 通孔形成在框状边缘部分中,并在其厚度方向上延伸通过。 通过通孔将框架状边缘部分的一个表面上的电极引线部分和另一个表面上的端子焊盘电连接,可以确保在谐振器封装的底部上的导电膜和 振动部分的设置有空腔侧的另一个表面上的电极。

    Structure for supporting a resonator using an ultrathin piezoelectric
plate in a package
    36.
    发明授权
    Structure for supporting a resonator using an ultrathin piezoelectric plate in a package 失效
    使用超级压电板在包装中支持谐振器的结构

    公开(公告)号:US5185550A

    公开(公告)日:1993-02-09

    申请号:US768923

    申请日:1991-10-09

    摘要: In a piezoelectric resonator having an ultrathin vibratory portion formed by a cavity made in a piezoelectric block and a thick frame-like rib formed integrally with said vibratory portion and surrounding it, an excess adhesive receiving groove or the like is cut in one marginal portion of the frame-like rib between an adhesive coated region. The resonator is fixedly housed in a package by use of an adhesive coated on one marginal portion of the frame-like rib along the z-axis direction, or by means of elastic pawls without using the adhesive. In this case, one marginal portion of the frame-like rib on the opposite side from a pad deposited on one side of the piezoelectric resonator is bonded to the bottom of the package. With such a structure, it is possible to prevent the adhesive from flowing into the cavity to cause variations in the resonance frequency of the piezoelectric resonator, to reduce the scatter of the temperature-frequency characteristic of a piezoelectric device using the resonator housed in a package during mass production, and to increase the bond strength of wire bonding for electrical connection of the piezoelectric resonator incorporated in the package.

    摘要翻译: PCT No.PCT / JP90 / 01527 Sec。 371日期1991年10月9日 102(e)日期1991年10月9日PCT 1990年11月22日PCT PCT。 WO91 / 12663 PCT出版物 日本1981年8月22日。在具有由压电块制成的空腔形成的超薄振动部分和与所述振动部分一体形成并围绕它的厚框架状肋的压电谐振器中,存在多余的粘合剂接收槽等 在粘合剂涂覆区域之间在框状肋的一个边缘部分中切割。 谐振器通过使用沿着z轴方向涂覆在框状肋的一个边缘部分上的粘合剂或者不使用粘合剂的方式通过弹性爪固定地容纳在封装中。 在这种情况下,与沉积在压电谐振器的一侧上的焊盘相反一侧的框状肋的一个边缘部分结合到封装的底部。 通过这样的结构,可以防止粘合剂流入空腔而引起压电谐振器的共振频率的变化,从而减少使用容纳在封装中的谐振器的压电器件的温度 - 频率特性的散射 并且增加了引入到封装中的压电谐振器的电连接的引线接合的结合强度。

    High frequency narrow-band multi-mode filter

    公开(公告)号:USRE33957E

    公开(公告)日:1992-06-09

    申请号:US849527

    申请日:1986-04-08

    IPC分类号: H03H9/64

    CPC分类号: H03H9/02944 H03H9/6463

    摘要: A high frequency narrow-band pass multi-mode filter in constructed in such manner that SAW of SSBW resonators are closely disposed to each other on a single piezoelectric substrate to generate different vibration modes of different resonance frequencies, conditions that the resonators are acoustically coupled to each other to cause these vibration modes, are experimentally found, and the above conditions are satisfied by the filter.In order to reduce the ohmic loss of a very narrow common bus bar, the number of strip pairs of electrode in both interdigital transducers (hereinafter referred to as IDT) is minimized and instead reflectors are provided on the both sides TDTs to compensate for the reduction of its Q value. A part of the bus bar for the IDT electrodes is formed integral with some or all of gratings of the reflectors, whereby the connecting positions of the grating electrodes with respect to lead terminals can be positioned with a high freedom.