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    • 22. 发明授权
    • Underwater sounding apparatus
    • 水下探测仪
    • US07164621B2
    • 2007-01-16
    • US10995268
    • 2004-11-24
    • Akira OkunishiYasushi NishimoriYasuo Ito
    • Akira OkunishiYasushi NishimoriYasuo Ito
    • G01S7/52G01S15/00
    • G01S7/527G01S7/521G01S15/96Y10S367/901
    • While keeping a propeller located in a negative direction of a y-axis turning, transmission of acoustic waves from vibrating elements of a transducer unit is interrupted. Reference signals “A” and “B” which are receiving beam signals having principal acoustic axes oriented in a propeller direction are generated from received signals obtained by “A” and “B” group vibrating elements, respectively. Next, adjustment factors used for removing propeller noise from received signals obtained by vibrating elements on positive and negative sides of an x-axis are calculated by performing arithmetic operation on time-series data on the received signals obtained by the positive and negative sides vibrating elements and on time-series data on the reference signals “A” and “B”, respectively. When performing underwater sounding operation by transmitting acoustic waves, a product of the reference signal “A” or “B” and the adjustment factor is subtracted from the received signal obtained by each of the positive and negative sides vibrating elements, respectively.
    • 在保持螺旋桨位于y轴转动的负方向的同时,传声器单元的振动元件的声波被中断。 分别由从“A”和“B”组振动元件获得的接收信号产生接收具有以螺旋桨方向取向的主声轴的波束信号的参考信号“A”和“B”。 接下来,通过对由正负侧振动元件获得的接收信号的时间序列数据进行运算,来计算用于从由x轴的正侧和负侧的振动元件获得的接收信号中去除螺旋桨噪声的调整因子 以及关于参考信号“A”和“B”的时间序列数据。 当通过发送声波进行水下探测操作时,从分别由正侧振动元件和负侧振动元件获得的接收信号中减去参考信号“A”或“B”的乘积和调整因子。
    • 24. 发明授权
    • Navigation method, navigation system, and information communications apparatus used in the navigation system
    • 导航方法,导航系统和导航系统中使用的信息通信装置
    • US06427117B1
    • 2002-07-30
    • US09551403
    • 2000-04-17
    • Yasuo ItoNaoki GoraiTakashi SugawaraSatoshi KitanoHiroyuki Yamakawa
    • Yasuo ItoNaoki GoraiTakashi SugawaraSatoshi KitanoHiroyuki Yamakawa
    • G06G778
    • G01C21/3492G01C21/3608G01C21/3629G01C21/3644G01C21/3679
    • A navigation system includes a navigation center and at least one moving body. The navigation center of the navigation system comprises memory means for storing navigation information; updating means for constantly updating the navigation information stored in the memory means; route searching means for setting a route from a current position of the moving body to a destination on the basis of the newest navigation information updated by the updating means; dividing means for dividing the searched route into at least two portions; extracting means for extracting navigation data concerning at least a head portion of the divided route from the memory means; transmitting means for transmitting to the moving body the extracted navigation data; and control means. After transmitting the navigation data for the head portion to the moving body and before transmitting navigation data for a remaining route, the control means controls each of the route searching means, the dividing means, the extracting means and the transmitting means so that each means performs the respective processes. This arrangement enables a user of the moving body to be provided with route guidance which is conducted using the navigation data formed based on the newest navigation information that reflects various road conditions.
    • 导航系统包括导航中心和至少一个移动体。 导航系统的导航中心包括用于存储导航信息的存储装置; 更新装置,用于不断更新存储在存储装置中的导航信息; 路线搜索装置,用于基于由更新装置更新的最新导航信息,设置从移动体的当前位置到目的地的路线; 划分装置,用于将搜索到的路线划分成至少两个部分; 提取装置,用于从存储装置中提取与划分的路线的至少头部有关的导航数据; 发送装置,用于向所述移动体发送所提取的导航数据; 和控制装置。 在将头部的导航数据发送到移动体之后,并且在发送用于剩余路线的导航数据之前,控制装置控制每个路线搜索装置,分割装置,提取装置和发送装置,使得每个装置执行 各自的过程。 通过这种布置,能够使移动体的使用者能够使用基于反映各种道路状况的最新导航信息而形成的导航数据进行路线引导。
    • 25. 发明授权
    • Communicatory navigation system
    • 通信导航系统
    • US06263276B1
    • 2001-07-17
    • US09657513
    • 2000-09-07
    • Shoji YokoyamaTomoki KubotaYasuo ItoNaoki GoraiTakashi SugawaraHideaki MoritaSatoshi KitanoHiroki Ishikawa
    • Shoji YokoyamaTomoki KubotaYasuo ItoNaoki GoraiTakashi SugawaraHideaki MoritaSatoshi KitanoHiroki Ishikawa
    • G06G778
    • G08G1/096811G01C21/26G08G1/096844G08G1/096872G08G1/096888
    • Disclosed is a communicatory navigation system including an information center (150), at least one navigation unit (100) each mounted on a vehicle and communication means for allowing bi-directional data communication between the information center and the navigation unit. Data transmission from the navigation unit to the information center is made during a period of communication that begins when the navigation unit become communicable with the information center and ends when the bi-directional data communication therebetween is disconnected. The navigation unit is provided with a drive route history memory area (131) and an instrument operation history memory area (132), and data in these memory areas are transmitted to the information center, together with the vehicle current position data and the destination position data. The information center determines a recommended drive route from the current position to the destination, not only with reference to its own database (158) but also taking into consideration the history data. For example, if it is determined that there is a traffic accident or heavy traffic jam in some route, a bypass route is determined and transmitted back to the navigation unit. When the previous drive route indicated by data in area (131) is not found in the database (158), it can be recognized as a newly constructed road for inclusion in the database.
    • 公开了一种通信导航系统,包括信息中心(150),安装在车辆上的至少一个导航单元(100)和用于允许信息中心和导航单元之间的双向数据通信的通信装置。 从导航单元到信息中心的数据传输是在导航单元与信息中心通信时开始的通信期间进行的,并且当它们之间的双向数据通信断开时结束。 导航单元设置有驱动路线历史记录区域(131)和仪器操作历史存储区域(132),并且将这些存储区域中的数据与车辆当前位置数据和目的地位置一起发送到信息中心 数据。 信息中心确定从当前位置到目的地的推荐驱动路线,不仅参照其自己的数据库(158),还考虑到历史数据。 例如,如果确定在某些路由中存在交通事故或大量交通堵塞,则确定旁路路由并将其发送回导航单元。 当在数据库(158)中没有找到由区域(131)中的数据指示的先前的驱动路线时,可以将其识别为用于包含在数据库中的新建道路。
    • 26. 发明授权
    • Communications navigation system, and navigation base apparatus and vehicle navigation apparatus both used in the navigation system
    • 通信导航系统,以及导航系统中使用的导航基站装置和车载导航装置
    • US06249740B1
    • 2001-06-19
    • US09234479
    • 1999-01-21
    • Yasuo ItoNaoki GoraiTakashi SugawaraSatoshi Kitano
    • Yasuo ItoNaoki GoraiTakashi SugawaraSatoshi Kitano
    • G01C2100
    • G08G1/096811G01C21/34G06Q10/02G06Q10/047G08G1/096822G08G1/096861G08G1/096866G08G1/096872
    • A commucations navigation system in which data is transmitted and received between a navigation base apparatus provided at a navigation base and a vehicle navigation apparatus provided in a vehicle using communication. The vehicle navigation apparatus is adapted to transmit at least data concerning the current position of the vehicle and the destination thereof to the navigation base apparatus, and the navigation base apparatus stores navigation data in its data base and is adapted to determine a recommended route based on the transmitted data of the current position of the vehicle and the destination thereof and then extract data of the recommended route from the navigation data stored in the data base and transmit the extracted data to the navigation apparatus. The navigation base apparatus is adapted to be able to extract detailed navigation data only for a surrounding areas of a specified point on the recommended route from the navigation data stored in the data base and then transmit the detailed navigation data to the navigation apparatus. The specified point includes a departure point, a destination and a course-change point which are located on the recommended route. During traveling other places on the recommended route such as intermediate sections, the navigation apparatus transmits simple navigation data such as a simple map to the vehicle, thereby enabling to reduce an amount of data to be transmitted from the navigation base apparatus to the vehicle navigation apparatus.
    • 一种通信导航系统,其中在设置在导航台的导航基站装置和使用通信的车辆中提供的车辆导航装置之间发送和接收数据。 车辆导航装置至少将与车辆的当前位置及其目的地有关的数据发送到导航基站装置,并且导航基站装置将导航数据存储在其数据库中,并且适于基于 车辆的当前位置和目的地的发送数据,然后从存储在数据库中的导航数据中提取推荐路线的数据,并将提取的数据发送到导航装置。 导航装置适于仅从存储在数据库中的导航数据提取对推荐路线上的指定点的周围区域的详细导航数据,然后将详细的导航数据发送到导航装置。 指定点包括位于推荐路线上的出发点,目的地和路线改变点。 在诸如中间部分的推荐路线行驶的其它地方,导航装置将诸如简单地图的简单导航数据发送到车辆,从而能够将从导航基站装置发送的数据量减少到车辆导航装置 。
    • 27. 发明授权
    • Knock detecting device for internal combustion engine
    • 内燃机爆震检测装置
    • US5959192A
    • 1999-09-28
    • US66176
    • 1998-04-24
    • Kazuhisa MogiKoichi NakataYasuo Ito
    • Kazuhisa MogiKoichi NakataYasuo Ito
    • G01M15/04F02P17/12G01L23/22G01M15/00
    • G01L23/225
    • A knock detection device for an internal combustion engine prevents erroneous knock detection decisions from being made due to an LC resonant current in an ion current path. An LC resonance frequency, which is determined based on an inductance of ignition coil secondary and a stray capacitance formed in the ion current path, is set so as to be displaced from a knock frequency so that the knock frequency component alone can be detected accurately from the ion current output. Preferably, the inductance of the ignition coil secondary is set to a large value, thereby setting the LC resonance frequency lower than the knock frequency and thus improving ignitability as well as knock detectability. Also preferably, the LC resonance frequency is set to a value lower than a lower cut-off frequency of a knock signal extraction band-pass filter provided in a processing circuit. This ensures more reliable elimination of the noise causing LC resonance frequency component.
    • 用于内燃机的爆震检测装置防止由离子电流路径中的LC谐振电流引起的错误的爆震检测决定。 基于点火线圈二次的电感和离子电流路径中形成的杂散电容确定的LC谐振频率被设定为从爆震频率位移,从而可以准确地检测爆震频率分量 离子电流输出。 优选地,将点火线圈次级的电感设定为大的值,从而将LC谐振频率设定为低于爆震频率,从而提高点火性以及爆震检测能力。 还优选地,LC谐振频率被设置为低于设置在处理电路中的爆震信号提取带通滤波器的下限截止频率的值。 这确保更可靠地消除引起LC谐振频率分量的噪声。
    • 28. 发明授权
    • Apparatus for detecting condition of burning in internal combustion
engine
    • 用于检测内燃机燃烧状况的装置
    • US5866808A
    • 1999-02-02
    • US748785
    • 1996-11-14
    • Shinji OoyabuYasuo ItoKazuhisa Mogi
    • Shinji OoyabuYasuo ItoKazuhisa Mogi
    • F02P17/12F02P17/00G01M15/00
    • F02P17/12
    • An apparatus for detecting a condition of burning in an internal combustion engine includes a spark plug and an ignition coil. The ignition coil has a primary winding and a secondary winding. The secondary winding is connected to the spark plug. An ion current sensing resistor is connected to a low voltage side of the secondary winding of the ignition coil for sensing an ion current. A diode is connected in parallel with the primary winding of the ignition coil. A switching element is connected in series with the primary winding of the ignition coil. The switching element is movable into and out of an on state. A suitable device is operative for resisting a current flowing through the diode when the switching element is in the on state.
    • 用于检测内燃机的燃烧状况的装置包括火花塞和点火线圈。 点火线圈具有初级绕组和次级绕组。 次级绕组连接到火花塞。 离子电流感测电阻器连接到点火线圈的次级绕组的低压侧,用于感测离子电流。 二极管与点火线圈的初级绕组并联连接。 开关元件与点火线圈的初级绕组串联连接。 开关元件可以进入和断开状态。 当开关元件处于导通状态时,合适的装置用于抵抗流过二极管的电流。