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    • 72. 发明授权
    • Navigation system and navigation apparatus used in the navigation system
    • 导航系统和导航仪在导航系统中使用
    • US06282492B1
    • 2001-08-28
    • US09695255
    • 2000-10-25
    • Naoki GoraiHiroyuki YamakawaTakashi SugawaraSatoshi KitanoYasuo Ito
    • Naoki GoraiHiroyuki YamakawaTakashi SugawaraSatoshi KitanoYasuo Ito
    • G01C2200
    • G01C21/32G01C21/34
    • A navigation system includes a navigation center and a plurality of navigation apparatuses each of which has a data storage that stores various information. In this navigation system, data (coordinate data of each of traveling intersections) concerning a recommended route is transmitted from the navigation center to the navigation apparatus, and then route guidance is carried out in the navigation apparatus using the data received from the navigation center. In the case where the navigation apparatus has intersection data for an intersection specified by the data received from the navigation center, the navigation apparatus extracts the intersection data for the intersection from the data storage. Further, in the case where the navigation center does not have intersection data for an intersection specified by the data received from the navigation center, the navigation apparatus establishes the intersection as a newly-built intersection on the recommended route. Then, the navigation apparatus produces route guidance data (which is used for providing route guidance to a user) using the extracted intersection data, and/or intersection data concerning the established newly-built intersection in addition to the information in the data storage.
    • 导航系统包括导航中心和多个导航装置,每个导航装置具有存储各种信息的数据存储器。 在该导航系统中,从导航中心向导航装置发送与推荐路线相关的数据(每个行驶路口的坐标数据),然后使用从导航中心接收的数据在导航装置中进行路线引导。 在导航装置具有从由导航中心接收到的数据指定的交点的交点数据的情况下,导航装置从数据存储器提取交叉路口的交叉路口数据。 此外,在导航中心没有从由导航中心接收到的数据指定的交叉路口的交叉路口数据的情况下,导航装置在推荐路线上建立交叉路口作为新建路口。 然后,除了数据存储中的信息之外,导航装置使用提取的交叉路口数据和/或与建立的新建的交叉路口相关的交叉路口数据生成路线引导数据(用于向用户提供路线引导)。
    • 73. 发明授权
    • Communicatory navigation system
    • 通信导航系统
    • US06202024B1
    • 2001-03-13
    • US09271166
    • 1999-03-18
    • 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 communicatable 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。
    • 74. 发明授权
    • Device for and a method of determining the angle of incidence of a received signal and a scanning sonar
    • 用于确定接收信号和扫描声纳的入射角的装置和方法
    • US06192006B1
    • 2001-02-20
    • US09239146
    • 1999-01-28
    • Hiroshi IinoItsuo FukuokaTatsuo HayashiYasuo Ito
    • Hiroshi IinoItsuo FukuokaTatsuo HayashiYasuo Ito
    • G01S380
    • G10K11/346B06B1/0633G01S7/521G01S7/527G01S15/42
    • A transducer is constructed of a plurality of transducer elements which are arranged in multiple layers and columns forming as a whole a generally cylindrical shape. A scanning sonar employing the transducer thus constructed can be switched between horizontal scan mode in which a vertically focused beam having a narrow horizontal beam angle (high horizontal directivity) is steered around the transducer using all the transducer elements and vertical scan mode in which a horizontally focused beam having a narrow vertical beam angle (high vertical directivity) is steered in a vertical plane directed in a specified scan azimuth to find out the angle of incidence of a received signal. The horizontally focused beam is formed by using the transducer elements of specific columns centered on the specified scan azimuth. A vertical scan signal obtained in the vertical scan mode is multiplied by a chirp signal. A correlator provided in a succeeding stage converts the amount of Doppler shift into time data and determines the angle of incidence of the received signal.
    • 传感器由多个换能器元件构成,多个传感器元件以多层和多列形式整体形成为大致圆柱形的形状。 使用如此构造的换能器的扫描声纳可以在水平扫描模式之间切换,在水平扫描模式中,使用所有换能器元件和垂直扫描模式,使用所有换能器元件和垂直扫描模式将具有窄水平射束角(高水平方向性)的垂直聚焦束转向绕传感器 具有窄垂直光束角(高垂直方向性)的聚焦光束在指定的扫描方位角的垂直平面中转向,以找出接收信号的入射角。 通过使用以指定扫描方位为中心的特定列的换能器元件形成水平聚焦光束。 以垂直扫描模式获得的垂直扫描信号乘以啁啾信号。 随后提供的相关器将多普勒频移量转换为时间数据并确定接收信号的入射角。
    • 76. 发明授权
    • Knocking detecting sensor
    • 敲击检测传感器
    • US5939616A
    • 1999-08-17
    • US975652
    • 1997-11-21
    • Yasuo ItoYoshitaka Fujikawa
    • Yasuo ItoYoshitaka Fujikawa
    • F02D35/00G01H11/08G01H17/00G01L23/22G01M15/00G01P15/09
    • G01L23/222G01P15/0907
    • A knocking detecting sensor (1) includes a piezoelectric element plate (8) for detecting vibration due to knocking generated in an internal combustion engine and a main metallic sleeve (5) for supporting the piezoelectric element plate (8) on the side of one face. The sensor (1) is attached to a prescribed attaching unit (30) of an internal combustion engine. The piezoelectric element plate (8) is formed in a flat axis-symmetrical shape at a position relative to an axial line (O) that is substantially orthogonal to the attaching face (30a) of the attaching unit (30). The main metallic shell (5) has an opposite face (35) to the attaching face (30a) of the attaching unit (30), and has a notch portion (37) opening toward the opposite face (35) at a position a prescribed distance away from the axial line (O). By providing the notch portion (37), the center of gravity (G) of the sensor (1) can be corrected so that it approaches the axial line (O).
    • 爆震检测传感器(1)包括用于检测由内燃机产生的爆震引起的振动的压电元件板(8)和用于在一个面的一侧支撑压电元件板(8)的主金属套筒(5) 。 传感器(1)安装在内燃机的规定的安装单元(30)上。 压电元件板(8)相对于与安装单元(30)的安装面(30a)大致正交的轴线(O)形成为平轴对称的形状。 主金属壳(5)具有与安装单元(30)的安装面(30a)相对的面(35),并且具有在规定的位置处朝向相对面(35)开口的切口部(37) 距离轴线(O)的距离。 通过设置切口部(37),能够对传感器(1)的重心(G)进行修正,使其接近轴线(O)。
    • 78. 发明授权
    • Device for controlling knocking in an internal combustion engine
    • 用于控制内燃机爆震的装置
    • US5836285A
    • 1998-11-17
    • US933320
    • 1997-09-18
    • Keiichiro AokiKazuhisa MogiKoichi NakataYasuo ItoYouichi Kurebayashi
    • Keiichiro AokiKazuhisa MogiKoichi NakataYasuo ItoYouichi Kurebayashi
    • G01H17/00F02D45/00F02P5/152F02P5/153F02P17/12G01L23/22G01M15/00
    • G01L23/225F02P5/152G01L23/221Y02T10/46
    • A device for controlling knocking includes a first unit which applies a voltage across a pair of electrodes installed in a combustion chamber of the internal combustion engine, detects an ionic current flowing between said pair of electrodes through ions generated when a gas mixture in the combustion chamber burns, and discriminates whether the knocking is occurring or not based upon the ionic current that is detected. The device for controlling knocking further includes a second unit which detects vibration of the cylinder block by using a vibration sensor installed in the cylinder block of the internal combustion engine, and discriminates whether the knocking is occurring or not based upon the vibration of the cylinder block that is detected. The device for controlling knocking controls the ignition timing of the internal combustion engine based upon the result of discrimination of either the first unit or the second unit depending upon the operation region of the internal combustion engine. The device for controlling knocking maintains a high knocking detecting precision and a high ignition timing control precision throughout the whole operation region of the internal combustion engine and for all cylinders.
    • 用于控制爆震的装置包括:第一单元,其在安装在内燃机的燃烧室中的一对电极上施加电压,通过在燃烧室中的气体混合物产生的离子来检测在所述一对电极之间流动的离子电流 燃烧并且基于检测到的离子电流来区分是否发生敲击。 用于控制爆震的装置还包括第二单元,其通过使用安装在内燃机的气缸体中的振动传感器来检测气缸体的振动,并且基于气缸体的振动来辨别是否发生爆震 被检测到。 用于控制爆震的装置根据内燃机的操作区域判别第一单元或第二单元的结果来控制内燃机的点火正时。 用于控制爆震的装置在内燃机的整个操作区域和所有汽缸中保持高的爆震检测精度和高的点火正时控制精度。