公开(公告)号：US08526681B2

公开(公告)日：2013-09-03

申请号：US12601389

申请日：2008-07-17

Applicant: Eisaku Akutsu

Inventor： Eisaku Akutsu

IPC: G06K9/00

CPC classification number: G06T7/248 ,  G06T2207/10016 ,  G06T2207/30252

Abstract: An image processing device includes a first camera that captures the periphery of a vehicle, specific region extracting units that extract regions, each of which is closer to the edge of an image than to the center of the image, as specific regions, and a movement amount calculating unit that calculates the amount of movement of the vehicle on the basis of image information in a plurality of specific regions. Therefore, it is possible to process only the first specific region and the second specific region of the captured image and thus effectively perform image processing.

Abstract translation: 图像处理装置包括拍摄车辆周边的第一照相机，提取区域的特定区域提取单元，每个区域提取图像的边缘比图像的中心更靠近图像的中心，作为特定区域，以及移动 量计算单元，其基于多个特定区域中的图像信息来计算车辆的移动量。 因此，可以仅处理拍摄图像的第一特定区域和第二特定区域，从而有效地进行图像处理。

公开(公告)号：US6081187A

公开(公告)日：2000-06-27

申请号：US919109

申请日：1997-08-28

Applicant: Eisaku Akutsu

Inventor： Eisaku Akutsu

IPC: G08G1/04 ,  G01S13/46 ,  G01S13/87 ,  G01S13/91 ,  G01S13/93 ,  G05D1/02 ,  G08G1/09 ,  B60Q1/00

CPC classification number: G05D1/0263 ,  G01S13/878 ,  G01S13/931 ,  G01S2013/9339 ,  G01S2013/9342 ,  G01S2013/9353 ,  G05D2201/0213

Abstract: A system which accurately detects a position of a vehicle on a road regardless of weather is disclosed. Radio wave reflecting bodies are placed on a road, and transmitter-receiver which can transmit and receive radio waves of wavelength is longer than a millimeter are placed on a vehicle. Based on a ratio of reception strength of the transmitter-receiver in the right and left of the vehicle, a displacement of the vehicle relative to the radio wave reflecting body is detected. The radio wave reflecting bodies have apertures or notches in a predetermined interval so that the radio wave signals reflected thereby has periodicity, and can be distinguished from other objects on the road.

Abstract translation: 公开了一种在不考虑天气的情况下准确地检测车辆在道路上的位置的系统。 将无线电波反射体放置在道路上，将能够发送和接收波长的无线电波的发射机 - 接收机放置在车辆上。 基于车辆右侧和左侧的发射机 - 接收机的接收强度的比率，检测到车辆相对于无线电波反射体的位移。 无线电波反射体在预定间隔内具有孔或凹口，使得由此反射的无线电波信号具有周期性，并且可以与道路上的其它物体区分开来。

公开(公告)号：US4337486A

公开(公告)日：1982-06-29

申请号：US212256

申请日：1980-12-02

Applicant: Eisaku Akutsu ,  Shigeo Matsuura

Inventor： Eisaku Akutsu ,  Shigeo Matsuura

IPC: H03J5/02 ,  H03J7/18 ,  H04N5/44 ,  H04N5/08

CPC classification number: H03J7/18

Abstract: A synchronizing signal discrimination circuit for use in a channel selection apparatus having a preset function of a television receiver is disclosed. The circuit has a function to discriminate a periodic and continuous signal and a non-periodic and one-shot signal to distinguish a synchronizing signal from a noise. The present synchronizing signal discrimination circuit determines a time period from the application of a first input signal to the input terminal to the application of a second input signal to the input terminal by the first time interval signal and the second time interval signal to detect only the periodic and continuous signal as the synchronizing signal.

Abstract translation: 公开了一种用于具有电视接收机的预设功能的频道选择装置中的同步信号鉴别电路。 该电路具有区分周期性和连续信号以及非周期性和单触发信号以区别同步信号与噪声的功能。 本同步信号鉴别电路确定从第一输入信号施加到输入端的时间段到通过第一时间间隔信号和第二时间间隔信号向输入端施加第二输入信号，以仅检测 周期性和连续信号作为同步信号。

公开(公告)号：US4056787A

公开(公告)日：1977-11-01

申请号：US691086

申请日：1976-05-28

Applicant: Takeshi Saitoh ,  Eisaku Akutsu ,  Mitsuhisa Shinagawa

Inventor： Takeshi Saitoh ,  Eisaku Akutsu ,  Mitsuhisa Shinagawa

IPC: H03M5/12 ,  H03B1/00 ,  H03B5/12 ,  H03D7/00 ,  H03D7/12 ,  H03F3/66 ,  H03J5/24 ,  H04B1/26 ,  H04N5/44 ,  H04B1/06

CPC classification number: H04B1/26 ,  H03B5/1203 ,  H03B5/1231 ,  H03B5/1243 ,  H03B5/1256 ,  H03D7/00 ,  H03D7/12 ,  H03F3/66 ,  H03J5/244 ,  H03B2200/004 ,  H03B2200/0048 ,  H03B2200/0056 ,  H03B2201/0208

Abstract: A self-oscillating mixer circuit suitable for a television receiver is provided using characteristically a single or two switching diodes. During VHF receiving, the mixer circuit operates in a self-oscillating mixing mode under an optimum bias condition, while, during UHF receiving, it operates under an optimum bias condition for intermediate frequency amplification, ceasing its local oscillation.

Abstract translation: 适用于电视接收机的自振荡混频器电路的特征在于提供单个或两个开关二极管。 在VHF接收期间，混频器电路在最佳偏置条件下以自振荡混频模式工作，而在UHF接收期间，它在适用于中频放大的最佳偏置条件下工作，停止其本地振荡。

公开(公告)号：US5983075A

公开(公告)日：1999-11-09

申请号：US835531

申请日：1997-04-08

Applicant: Eisaku Akutsu

Inventor： Eisaku Akutsu

IPC: H01Q7/00 ,  G08G1/017 ,  H04B5/00 ,  H04B7/26 ,  H04B5/02

CPC classification number: H04B5/0081 ,  G08G1/017

Abstract: A radio communication system between a mobile station on a vehicle and a stationary station in which a uniform field intensity is obtained in a direction of a width of a road so that a good communication can be performed irrespective of a position of the vehicle on the road. A mobile station is provided on the vehicle. A stationary station communicating with the mobile station includes at least one pair of antennas located with the road therebetween so that the antennas generate an electric field having a substantially uniform intensity in a direction of a width of the road.

Abstract translation: 在车辆上的移动台和在道路的宽度方向上获得均匀的场强的固定站之间的无线电通信系统，以便能够执行良好的通信而不管车辆在道路上的位置如何 。 在车辆上设置移动台。 与移动站通信的固定站包括至少一对天线，其间位于道路之间，使得天线在道路的宽度方向上产生具有基本均匀的强度的电场。

公开(公告)号：US5930246A

公开(公告)日：1999-07-27

申请号：US855269

申请日：1997-05-14

Applicant: Eisaku Akutsu

Inventor： Eisaku Akutsu

IPC: H04L5/16 ,  H04B7/26 ,  H04J3/00 ,  H04J3/17 ,  H04J3/16

CPC classification number: H04B7/2643

Abstract: A bidirectional communication system, including a base station and a plurality of mobile stations, comprises a first unit which alternatively sets a number of transmitting time slots and a number of receiving time slots, each transmitting time slot used by the base station to transmit data to one of the mobile stations on a corresponding one of subchannels assigned for the mobile stations, each receiving time slot used by the base station to receive data from one of the mobile stations on a corresponding one of the subchannels. A second unit changes one of the transmitting time slots and the receiving time slots to a reversed-mode time slot related to a particular one of the mobile stations, whereby the base station uses both the reversed-mode time slot and a corresponding one of the transmitting time slots and the receiving time slots to transmit data to the particular one of the mobile stations or receive data from the particular one of the mobile stations.

Abstract translation: 包括基站和多个移动站的双向通信系统包括：第一单元，其交替地设置多个发送时隙和多个接收时隙，每个发送时隙用于基站发送数据到 在分配给移动台的相应一个子信道上的移动站中的一个移动站，每个接收基站使用的时隙，用于从相应的一个子信道上的一个移动站接收数据。 第二单元将发送时隙和接收时隙中的一个改变为与特定移动站相关的反模式时隙，由此基站使用反模式时隙和相应模式时隙 发送时隙和接收时隙以将数据发送到特定的一个移动站或从特定的一个移动站接收数据。

公开(公告)号：US5883585A

公开(公告)日：1999-03-16

申请号：US882159

申请日：1997-06-25

Applicant: Eisaku Akutsu ,  Yoshihiro Ohkuwa

Inventor： Eisaku Akutsu ,  Yoshihiro Ohkuwa

IPC: G01B11/00 ,  G01B7/00 ,  G01J1/02 ,  G01S7/481 ,  G01S17/10 ,  G01V8/16 ,  G08G1/02 ,  G08G1/04 ,  G08G1/01

CPC classification number: G08G1/02 ,  G08G1/04 ,  G01S17/10 ,  G01S7/4818

Abstract: A system for detecting an object located on a travelling path even in bad weather or during nighttime in which conducting wires having a predetermined impedance value are laid along a travelling path, and a signal is supplied to the conducting wires from a signal source. If a vehicle exists on the path, the impedance of the conducting wires changes at the position where the vehicle is present. A signal reflected from the impedance change position is detected by a detector. The position of the vehicle can be determined from the timing of the received reflection signal. It is also possible to detect a vehicle changing lanes or the like by means of a plurality of conductive wires laid along the travelling path. Instead of a conducting wire, an optical fiber may be provided for determining the position of a vehicle using the refractive index change in the optical fiber due to the weight of the vehicle.

Abstract translation: 一种用于检测位于行进路径上的物体，即使在恶劣天气或夜间，具有预定阻抗值的导线沿着行进路径放置，并且信号从信号源提供给导线。 如果在路径上存在车辆，则导线的阻抗在存在车辆的位置处变化。 从阻抗变化位置反射的信号由检测器检测。 可以根据接收到的反射信号的定时来确定车辆的位置。 还可以通过沿着行进路径布置的多根导线来检测车辆变换车道等。 代替导线，可以提供光纤，用于由于车辆的重量，使用光纤中的折射率变化来确定车辆的位置。

公开(公告)号：US5784005A

公开(公告)日：1998-07-21

申请号：US512320

申请日：1995-08-08

Applicant: Eisaku Akutsu ,  Kenji Sasaki ,  Keiji Aoki

Inventor： Eisaku Akutsu ,  Kenji Sasaki ,  Keiji Aoki

IPC: G08B21/00 ,  B60W30/00 ,  G08B25/01 ,  G08B25/04 ,  G08G1/09 ,  G08G1/127 ,  H04B7/26

CPC classification number: G08B25/016

Abstract: A communications infrastructure system for vehicles. The communications infrastructure system includes an infrastructure including a plurality of beacons sequentially positioned along a road wherein the beacons transmit respective ones of a repeated series of at least three kinds of signals. The communications infrastructure system also includes a communications apparatus provided with a vehicle, which communications apparatus comprises a receiver for receiving a signal transmitted by the beacons, a unit for discriminating the kind of signal, a memory for recording a past record of the kind of signal, and a signal generator generating a signal corresponding to the past record.

Abstract translation: 一种用于车辆的通信基础设施系统。 通信基础设施系统包括基站，其包括沿着道路顺序定位的多个信标，其中信标发送重复的一系列至少三种信号中的相应信号。 通信基础设施系统还包括具有车辆的通信装置，该通信装置包括用于接收由信标发送的信号的接收机，用于识别信号种类的单元，用于记录信号种类的过去记录的存储器 和产生与过去记录相对应的信号的信号发生器。

公开(公告)号：USRE31335E

公开(公告)日：1983-08-02

申请号：US396110

申请日：1982-07-07

Applicant: Shigeo Matsuura ,  Eisaku Akutsu ,  Hiroshi Miyamoto

Inventor： Shigeo Matsuura ,  Eisaku Akutsu ,  Hiroshi Miyamoto

IPC: H02M7/515 ,  H03J1/00 ,  H03J7/18 ,  H03J7/28

CPC classification number: H03J7/18 ,  H03J7/28

Abstract: A search tuning type channel detector system for television receivers. When AFC voltage of a tuner has attained a first predetermined voltage level, frequency sweeping direction for tuning is reversed and stopped thereby to tune the tuner at an optimum tuning frequency. Means are provided to allow the inversion as well as stoppage of the frequency sweeping only when AFC voltage has attained a second predetermined voltage level, thereby to exclude possible erroneous operation due to noise or the like spurious signal components.

公开(公告)号：US4233591A

公开(公告)日：1980-11-11

申请号：US916565

申请日：1978-06-19

Applicant: Toshinori Murata ,  Shigeo Matsuura ,  Hiroshi Miyamoto ,  Eisaku Akutsu

Inventor： Toshinori Murata ,  Shigeo Matsuura ,  Hiroshi Miyamoto ,  Eisaku Akutsu

IPC: H03M1/82 ,  H03M1/00 ,  H03M1/68 ,  H03K13/02

CPC classification number: H03M1/822 ,  H03M1/0634

Abstract: A digital-to-analog converter of a pulse width modulation type in which a single counting cycle of a clock pulse counter is divided into 2.sup.m elementary periods where m represents a selected number of less significant bits of a digital input data to be converted into analog quantity and elementary pulses in number determined in dependence on the logic values of the more significant bits are distributed among the elementary periods, while supplementary elementary pulses are produced in the elementary periods selected in dependence on the logic values of the less significant bits of the digital input data. These elementary pulses are integrated for every elementary period and the integrated output value is converted into a corresponding DC analog output signal.

Abstract translation: 一种脉冲宽度调制型的数/模转换器，其中时钟脉冲计数器的单个计数周期被划分为2m个基本周期，其中m表示要转换为模拟的数字输入数据的选定数量的较低有效位 根据更高有效位的逻辑值确定的数量和基本脉冲数量分布在基本周期之间，而辅助基本脉冲则是根据数字的较低有效位的逻辑值选择的基本周期产生的 输入数据。 对于每个基本周期，这些基本脉冲被积分，并且积分输出值被转换成相应的直流模拟输出信号。