公开(公告)号：US08477826B2

公开(公告)日：2013-07-02

申请号：US12925635

申请日：2010-10-26

申请人： Kenichiro Sanji ,  Akira Takaoka ,  Hiromichi Naitoh ,  Masahiro Sugiura

发明人： Kenichiro Sanji ,  Akira Takaoka ,  Hiromichi Naitoh ,  Masahiro Sugiura

IPC分类号： H04B1/00

CPC分类号： H04B1/7075 ,  H04B2201/70715

摘要： In a wireless communication system, a portable device transmits a first signal spread based on a reference period indicated by a synchronization signal transmitted from an in-vehicle device and transmits a second signal spread based on an operation by a user. The in-vehicle device sets a search period based on a variation range in a delay time from when the synchronization signal is transmitted to when the spread first signal is transmitted and sets a residual period that starts at an ending point of the search period and ends at an ending point of the reference period when a starting point of the reference period is set at a starting point of the search period. When the in-vehicle device fails in a synchronous acquisition for the search period, the in-vehicle device performs a synchronous acquisition process for the residual period.

摘要翻译： 在无线通信系统中，便携式设备发送基于从车载设备发送的同步信号所指示的基准时段扩展的第一信号，并发送基于用户的操作而扩展的第二信号。 车载设备基于从发送同步信号到发送第一信号的延迟时间的变化范围设定搜索周期，并设置从搜索期间的结束点开始的剩余期间 在基准期间的起点设定在搜索期间的起始点的基准期间的终点。 当在搜索期间车载设备失败同步采集时，车载设备对剩余时段执行同步采集处理。

公开(公告)号：US07683769B2

公开(公告)日：2010-03-23

申请号：US11723757

申请日：2007-03-21

申请人： Takashi Saitou ,  Akira Takaoka ,  Nobuya Watabe ,  Hideki Saito ,  Tomohiro Kuno

发明人： Takashi Saitou ,  Akira Takaoka ,  Nobuya Watabe ,  Hideki Saito ,  Tomohiro Kuno

IPC分类号： B60C23/00

CPC分类号： B60C23/0408 ,  B60C23/0413 ,  B60C23/0464

摘要： A batteryless tire inflation pressure detecting apparatus includes, on the body of a vehicle, antennas and a transmitter transmitting radio waves through the antennas. The apparatus also includes, on each wheel of the vehicle, a pressure sensor sensing the pressure of a tire, a transceiver, and a charging unit powering the pressure sensor and the transceiver. The charging unit is charged with electric power induced by a corresponding one of the radio waves received by the transceiver. The apparatus further includes, on the body of the vehicle, a receiver receiving pressure signals transmitted by the transceivers, a pressure determiner determining the pressures of the tires based on the pressure signals, and a controller. To minimize influence of the radio waves on neighboring devices, the controller controls the transmitter so that least two of the radio waves are transmitted at different times, or at the same with a phase difference therebetween.

摘要翻译： 无电池轮胎充气压力检测装置在车体上包括通过天线发送无线电波的天线和发射机。 该装置还包括在车辆的每个车轮上的感测轮胎压力的压力传感器，收发器和为压力传感器和收发器供电的充电单元。 充电单元对由收发器接收的相应的一个无线电波感应的电力充电。 该装置还包括在车身上的接收器，接收由收发器发送的压力信号，基于压力信号确定轮胎的压力的压力确定器以及控制器。 为了最小化无线电波对相邻设备的影响，控制器控制发射机，使得至少两个无线电波在不同时间发射，或者与它们之间的相位差相同。

公开(公告)号：US20090323772A1

公开(公告)日：2009-12-31

申请号：US12492347

申请日：2009-06-26

申请人： Kenichiro SANJI ,  Akira TAKAOKA ,  Hiromichi NAITO

发明人： Kenichiro SANJI ,  Akira TAKAOKA ,  Hiromichi NAITO

IPC分类号： H04B1/707

CPC分类号： H04B1/7093 ,  G07C2009/00793 ,  G07C2209/06 ,  H04B1/7077 ,  H04B1/7095 ,  H04B2201/70711 ,  H04B2201/70715

摘要： In a wireless communication system, a portable device and an in-vehicle device wirelessly communicate with each other by a spread spectrum method. The in-vehicle device transmits a synchronization signal indicative of a reference period to the portable device. The in-vehicle device performs code acquisition for only a portion of a spread wireless signal received from the portable device. The portion has a starting point in a search period from a search start point to a search end point. The search start point is identified based on the reference period and a predetermined first correction time. The search end point is identified based on the reference period and a predetermined second correction time.

摘要翻译： 在无线通信系统中，便携式设备和车载设备通过扩频方法彼此无线通信。 车载设备向便携式设备发送指示参考周期的同步信号。 车载设备仅对从便携式设备接收的扩展无线信号的一部分进行代码获取。 该部分在搜索起始点到搜索结束点的搜索期间具有起始点。 基于参考周期和预定的第一校正时间来识别搜索起始点。 基于参考周期和预定的第二校正时间来识别搜索结束点。

公开(公告)号：US20090303153A1

公开(公告)日：2009-12-10

申请号：US12478125

申请日：2009-06-04

申请人： Akira Takaoka ,  Noriaki OKADA

发明人： Akira Takaoka ,  Noriaki OKADA

IPC分类号： H01Q1/36

CPC分类号： H01Q7/00 ,  H01Q1/36

摘要： An antenna apparatus includes an antenna and support member. The antenna has a double spiral structure to include (i) an outer element, which has a spiral section prolonged spirally in an axial direction, and (ii) an inner element, which has a spiral section prolonged spirally in the axial direction and is surrounded with an interval space by the outer element. The support member is made of dielectrics and holds the two elements in a predetermined positional relationship by contacting the spiral sections of the two elements. The support member contacts the spiral sections wholly along the prolonged direction. One of the two elements is connected with a high frequency wave source at one end portion along the axial direction while the other is connected with the high frequency wave source at the other end portion along the axial direction. The antenna functions as a terminal short circuit type.

摘要翻译： 天线装置包括天线和支撑构件。 天线具有双螺旋结构，包括（i）具有沿轴向螺旋延伸的螺旋部分的外部元件，和（ii）内部元件，其具有沿轴向螺旋延伸并被包围的螺旋部分 具有外部元素的间隔空间。 支撑构件由电介质构成，并且通过接触两个元件的螺旋部分而将两个元件保持在预定的位置关系。 支撑构件沿着延长的方向完全接触螺旋部分。 两个元件中的一个在沿着轴向的一个端部与高频波源连接，而另一个在轴向的另一端部与高频波源连接。 天线用作端子短路型。

公开(公告)号：US20090207892A1

公开(公告)日：2009-08-20

申请号：US12379321

申请日：2009-02-19

申请人： Kenichiro Sanji ,  Akira Takaoka ,  Hiromichi Naitoh

发明人： Kenichiro Sanji ,  Akira Takaoka ,  Hiromichi Naitoh

IPC分类号： H04B1/00

CPC分类号： H04B1/7075

摘要： A receiving device for spread spectrum communication includes a phase determining unit and a data demodulating unit. The receiving device receives a signal spread and modulated with first spreading code. The phase determining unit calculates a cross correlation between the received signal and a second spreading code and determines a phase P(0) of the received signal based on the cross correlation. The data demodulating unit synchronizes the phase P (0) and the first spreading code and despreads and demodulates the received signal with the first spreading code. The number of components in each of the first spreading code and the second spreading code is an integer greater than or equal to 2.

摘要翻译： 用于扩频通信的接收装置包括相位确定单元和数据解调单元。 接收装置接收利用第一扩展码扩展和调制的信号。 相位确定单元计算接收信号和第二扩展码之间的互相关，并且基于互相关来确定接收信号的相位P（0）。 数据解调单元同步相位P（0）和第一扩展码，并用第一扩展码解扩和解调接收信号。 第一扩展码和第二扩展码中的每一个中的分量的数量是大于或等于2的整数。

公开(公告)号：US20090145217A1

公开(公告)日：2009-06-11

申请号：US12330791

申请日：2008-12-09

申请人： Takashi Saitou ,  Akira Takaoka ,  Nobuya Watabe ,  Masashi Mori

发明人： Takashi Saitou ,  Akira Takaoka ,  Nobuya Watabe ,  Masashi Mori

IPC分类号： B60C23/04

CPC分类号： B60C23/0416 ,  B60C23/0444 ,  B60C23/045

摘要： A first trigger unit and a second trigger unit output trigger signals to transceivers disposed for the four wheels of a vehicle. The first and second trigger units are attached to wall surfaces of tire housings corresponding to the left front and left rear wheels respectively. Each of the first and second trigger units is arranged in a position of the wall surface having an angle from 5 to 25 degrees with respect to the side of the corresponding wheel. Transceivers attached to a right front and right rear wheels are thus located farther from the trigger units than the left front and left rear wheels, respectively. Such arrangement allows the transceivers attached to the right front and right rear wheels to receive the outputted trigger signals with sufficient accuracy due to high field strength.

摘要翻译： 第一触发单元和第二触发单元向车辆的四个车轮设置的收发器输出触发信号。 第一和第二触发单元分别附接到对应于左前后轮和左后轮的轮胎壳体的壁表面。 第一和第二触发单元中的每一个被布置在壁表面相对于相应的轮的侧面具有5至25度的角度的位置。 因此，附接到右前轮和右后轮的收发器分别比左前轮和左后轮远离扳机单元。 这样的布置允许附接到右前轮和右后轮的收发器由于高场强而以足够的精度接收输出的触发信号。

公开(公告)号：US07075489B2

公开(公告)日：2006-07-11

申请号：US10679641

申请日：2003-10-06

申请人： Akira Takaoka ,  Akihiko Hayashi

发明人： Akira Takaoka ,  Akihiko Hayashi

IPC分类号： H01Q1/32

CPC分类号： H01Q1/3291

摘要： A vehicular antenna is mounted on a circuit board in a monitor. The circuit board has a conductor substrate that is used as a ground for the antenna, and it has a frame shape that has a rectangular inner edge. The circuit board has an electrical contact for connecting the antenna. The electrical contact is placed at λ/4 away from an axisymmetrical line (center line) with respect to the inner edge. As a result, a gain of the vehicular antenna is not reduced in a front direction even when the vehicular antenna uses the frame shape conductor as the ground.

摘要翻译： 车载天线安装在监视器中的电路板上。 电路板具有用作天线的接地的导体基板，并且具有矩形内边缘的框架形状。 电路板具有用于连接天线的电接点。 电触点相对于内边缘位于距离轴对称线（中心线）的λ/ 4处。 结果，即使当车辆用天线使用框形导体作为地面时，车辆天线的增益也不会在正面方向上减小。

公开(公告)号：US20140153655A1

公开(公告)日：2014-06-05

申请号：US14125758

申请日：2012-07-18

申请人： Taiji Abe ,  Akira Takaoka ,  Yuukou Murase ,  Hideaki Ishihara

发明人： Taiji Abe ,  Akira Takaoka ,  Yuukou Murase ,  Hideaki Ishihara

IPC分类号： H04B3/54

CPC分类号： H04B3/54 ,  H04B3/56 ,  H04B5/0018 ,  H04B2203/5416 ,  H04B2203/5445 ,  H04B2203/5483

摘要： An opening area between twisted portions of a pair of twisted wires is arranged to be opposite to an opening area of an aperture antenna of each of communication apparatuses. Thus, the use of the pair of twisted wires permits division of electric power among the communication apparatuses and also communication of signals. In particular, among the opening areas between the twisted portions of the pair of twisted wires, only an opening area, which is in between the twisted portion and the twisted portion and is opposite to the aperture antenna, is formed to be larger than a different opening area. This provides a vehicular power line communication system and a transmitter in the system; the system strengthens electromagnetic induction connection between the transmitter and the receiver to permit power line communication.

摘要翻译： 一对扭绞线的扭转部分之间的开口区域布置成与每个通信设备的孔径天线的开口区域相对。 因此，使用这对双绞线可以在通信装置之间进行电力分配，也可以进行信号的通信。 特别地，在一对扭绞线的扭转部分之间的开口区域中，仅在扭转部分和扭转部分之间并且与孔径天线相对的开口区域形成为大于不同的 开放区域。 这提供了系统中的车辆电力线通信系统和发射机; 该系统加强了发射机和接收机之间的电磁感应连接，以实现电力线通信。

公开(公告)号：US20120293302A1

公开(公告)日：2012-11-22

申请号：US13439134

申请日：2012-04-04

申请人： Munenori Matsumoto ,  Akira Takaoka ,  Tohru Yamaguchi

发明人： Munenori Matsumoto ,  Akira Takaoka ,  Tohru Yamaguchi

IPC分类号： G06F7/04

CPC分类号： B60R16/00

摘要： An onboard apparatus control system is disclosed. The onboard apparatus control system includes a portable apparatus and an in-vehicle apparatus which controls an onboard apparatus according to position of the portable apparatus. From multiple transmitting antennae, the in-vehicle apparatus transmits pulse pattern signals with different transmission frequencies at an overlapping timing, so that the pulse pattern signals are radio waves whose intensities are changed stepwise according to different patterns. The portable apparatus receives the radio waves transmitted from the multiple transmitting antennae. The position of the portable apparatus with respect to the vehicle is determined based on a combined pattern of the received pulse pattern signals, which a receiving unit is to receive at location with respect to the vehicle.

摘要翻译： 公开了一种车载设备控制系统。 车载设备控制系统包括便携式设备和根据便携式设备的位置控制车载设备的车载设备。 从多个发送天线，车载装置以重叠定时发送具有不同发送频率的脉冲模式信号，使得脉冲模式信号是其强度根据不同模式逐步改变的无线电波。 便携式装置接收从多个发送天线发送的无线电波。 便携式装置相对于车辆的位置基于接收单元在相对于车辆的位置接收的接收脉冲模式信号的组合模式来确定。

公开(公告)号：US20110256841A1

公开(公告)日：2011-10-20

申请号：US13066411

申请日：2011-04-14

申请人： Yuuji Kakuya ,  Akira Takaoka ,  Munenori Matsumoto ,  Tomotsugu Sekine

发明人： Yuuji Kakuya ,  Akira Takaoka ,  Munenori Matsumoto ,  Tomotsugu Sekine

IPC分类号： H04B1/16

CPC分类号： H04B1/18

摘要： A matching circuit, connected to a receiving antenna and to the input of a receiving circuit, incorporates a variable capacitor that is adjustable for tuning the resonance frequency of the antenna to a desired reception frequency. In an automatic tuning mode of operation, an oscillator signal of different frequency from the reception frequency is applied to induce resonance of the antenna and matching circuit, and the variable capacitor is adjusted until an output signal level from the receiving circuit attains a predetermined value which has been stored beforehand in a memory and which corresponds to a condition whereby the antenna resonance frequency corresponds to the reception frequency and impedance matching exists between the antenna and receiving circuit.

摘要翻译： 连接到接收天线和接收电路的输入端的匹配电路包括可调节的可变电容器，用于将天线的谐振频率调谐到期望的接收频率。 在自动调谐操作模式中，施加与接收频率不同频率的振荡器信号以引起天线和匹配电路的谐振，并且调整可变电容器直到来自接收电路的输出信号电平达到预定值， 已经预先存储在存储器中，并且其对应于天线谐振频率对应于接收频率并且在天线和接收电路之间存在阻抗匹配的条件。