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11. 发明专利

JP2003074238A Electronic key system 审中-公开
标题翻译：电子钥匙系统
公开(公告)号：JP2003074238A
公开(公告)日：2003-03-12
申请号：JP2001266705
申请日：2001-09-04
申请人： Denso Corp , Nippon Soken Inc , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： FURUTA NORITOSHI , HIRAYAMA MASAHITO , KITAHARA TAKAHIDE
IPC分类号： E05B49/00 , B60J5/00 , B60R25/01 , B60R25/24 , B60R25/31 , B60R25/34 , B60R25/40 , H04Q9/00 , B60R25/00
摘要： PROBLEM TO BE SOLVED: To prevent a battery life from being affected by an evil influence by reducing the current consumption in controlling a door lock in getting off a car in an electronic key system. SOLUTION: When an engine is stopped, seats seated by occupants are specified, a relation with a transmitter performing the communication in controlling the door unlocking is collated, and when both are accorded to each other, the transmitter performing the communication in the unlocking alone is on standby as a transmitter to be operated in controlling the automatic lock (S210-S250). When the door is opened/closed, all the occupants get off the car and the standby transmitter is operated (S270-S290). Receiving a response signal, a transmitter performing the transmission is specified, and the operations of the transmitters except for it are stopped (S300-S320). Afterwards, when recognizing that an electric field strength value of the response signal is gradually reduced and that the occupants are separating from the vehicle, an automatic lock is executed, and the operation of the transmitter operated at present is stopped (S330-S400).
摘要翻译：要解决的问题：为了防止电池寿命受到电子钥匙系统中下车时控制门锁的电流消耗的影响而受到影响。解决方案：当发动机停止时，指定由乘员坐下的座椅，与控制门解锁的通信的发射机的关系进行整理，当两者相互符合时，仅在解锁中执行通信的发射机是待机时作为要控制自动锁定的发射机（S210-S250）。当门打开/关闭时，所有乘客下车，待机发射机被操作（S270-S290）。接收响应信号时，指定执行发送的发送机，并且除了发送机以外的发送机的动作停止（S300〜S320）。此后，当识别出响应信号的电场强度值逐渐减小并且乘员与车辆分离时，执行自动锁定，并且停止当前操作的发射机的操作（S330-S400）。

12. 发明专利

JP2002344227A RADIO RECEIVER 失效
公开(公告)号：JP2002344227A
公开(公告)日：2002-11-29
申请号：JP2001147637
申请日：2001-05-17
申请人： NIPPON SOKEN , DENSO CORP
发明人： SUGIMOTO YUJI , HIRAYAMA MASAHITO , FUKUI SHINJI , MIYAGAWA TOMOYUKI
IPC分类号： B60R25/01 , B60R25/10 , B60R25/24 , H01Q1/24 , H01Q9/16 , H04B1/10 , B60R25/00
摘要： PROBLEM TO BE SOLVED: To improve reception performance. SOLUTION: A radio receiver comprises a circuit board 2, in which a reception circuit 31 is formed, an antenna 4 which receives radio waves and outputs a reception signal to the circuit 31, and a wire harness 6 connected to the board 2 to conduct with the circuit 31. The antenna 4 is disposed, so that the direction for extending an element 41 of a signal side from the board 2 is reverse to the direction of extending the harness 6 from the board 2 and that the direction of extending an element 4 of a ground side from the board 2 is in the same as the direction of extending the harness 6 from the board 2. Thus, a high-frequency current, flowing to the harness 6 which functions as a substantial element at the receiving of the radio waves, flows in a direction of increasing the signal for improving the antenna gain.

13. 发明专利

JP2001111455A SPREAD SPECTRUM RECEIVER 失效
公开(公告)号：JP2001111455A
公开(公告)日：2001-04-20
申请号：JP28478099
申请日：1999-10-05
申请人： NIPPON SOKEN , DENSO CORP
发明人： HATTORI TOSHIHIRO , HIRAYAMA MASAHITO , ISHIKAWA MASAYUKI , TERASAWA SADAHIRO , TAKEUCHI TOSHIHIRO
IPC分类号： H04W4/00 , H04B1/707 , H04B7/26 , H04W36/00
摘要： PROBLEM TO BE SOLVED: To easily execute inverse spreading processing in a spread spectrum receiver. SOLUTION: In an inverse spreading circuit 10 for executing inverse spreading and provided with a complex multiplication circuit 11 for executing the complex multiplication of a complex conjugate between outputs I, Q from a quasi- synchronous detection circuit and spreading codes, the circuit 11 is provided with a positive/negative inversion circuit 11a for inverting the positive/negative of a real number part I of a quasi-synchronous detection signal and outputting a positive/negative inversion signal -I, a positive/negative inversion circuit 11b for inverting the positive/negative of an imaginary number part Q of the quasi-synchronous detection signal and outputting a positive/negative inversion signal -Q and a selector 11c for selectively outputting the outputs I, Q of the quasi-synchronous detection signal and their positive/negative inversion signals -I, -Q.

14. 发明专利

JPH09214337A PLL SYNTHESIZER CIRCUIT 失效
公开(公告)号：JPH09214337A
公开(公告)日：1997-08-15
申请号：JP4662096
申请日：1996-02-08
申请人： NIPPON SOKEN , DENSO CORP
发明人： HIRAYAMA MASAHITO , HATTORI TOSHIHIRO , YAMADA MICHIHARU , ASHIE KOUJI
IPC分类号： H03L7/18
摘要： PROBLEM TO BE SOLVED: To prevent leakage of a signal delivering to a wire of the PLL synthesizer circuit and to prevent intrusion of external noise to the wire. SOLUTION: In the PLL synthesizer circuit where a reference signal oscillator 1, a phase comparator 22, a charge pump 23, a feedback output frequency divider 24, a low pass filter 3, and a voltage controlled oscillator 4 are arranged at a prescribed position, the low pass filter 3 is divided and a pre-stage filter 3E is arranged close to the charge pump 23 and a post-stage filter 3F is arranged close to the voltage controlled oscillator 4, the post-stage filter 3F is arranged close to the voltage controlled oscillator 4. Thus, the filter 3E and the post stage filter 3F are connected by a line 73 to prevent pulse signal outputted from the charge pump 23 from leaking to the wire 71 and to prevent external noise from entering a wire 75.

15. 发明专利

JPH09116433A PLL FREQUENCY SYNTHESIZER 失效
公开(公告)号：JPH09116433A
公开(公告)日：1997-05-02
申请号：JP29216095
申请日：1995-10-13
申请人： NIPPON SOKEN , DENSO CORP
发明人： HIRAYAMA MASAHITO , HATTORI TOSHIHIRO , YAMADA MICHIHARU , ASHIE KOUJI
IPC分类号： H03L7/22
摘要： PROBLEM TO BE SOLVED: To provide the synthesizer of compact and simple constitution where spuriousness is reduced by providing signal attenuation means attenuating the signals of the frequency bands of PLL outputs in the middle of the control lines of signal change-over switches. SOLUTION: The PLL synthesizers 11A and 11B different in output frequencies, single pole single throw switches 13A and 13B outputting either output and a single pole double throw switch 14 are provided for frequency high speed switching. The control lines w1-w11 transmit control signals controlling the on/off of the switches to the respective switches. The signal attenuation means 191-195 attenuating the outputs of the PLL synthesizers 11A and 11B, which leak, are provided in the middle of the control signal lines w5, w6, w10, w11, w4 and w9. The signal attenuation means 191-195 are set to be inverters having a gain in the frequency band lower than the output frequency bands of the PLL synthesizers 11A and 11B.

16. 发明专利

JPH04199926A SPREAD SPECTRUM COMMUNICATION EQUIPMENT 失效
公开(公告)号：JPH04199926A
公开(公告)日：1992-07-21
申请号：JP33139190
申请日：1990-11-29
申请人： NIPPON SOKEN
发明人： HIRAYAMA MASAHITO , NUMATA AKISHI
IPC分类号： H04J13/00 , H04B1/7077
摘要： PURPOSE:To suppress interference with another transmitter and influence owing to an interference signal by setting a level slightly lower than the maximum value of a correlation signal obtained in one cycle of a distribution code as a reference signal level. CONSTITUTION:Correlation detection means 1 and 2 correlate a first distribution code and a second distribution code, which are included in a wide band signal received by a receiver, and generate the correlation signal corresponding to a correlation degree. A comparison means 3 compares the signal level of the correlation signal with the signal level of a reference signal. A phase alteration means 4 refers to a compared result, alters the phase of the second diffusion code by a prescribed amount until the signal level of the correlation signal becomes more than the reference level. A reference signal setting means 5 sets the level slightly lower than the maximum level of the correlation signal obtained within one first period of the distribution code as the signal level of the reference signal. Thus, the alteration of the phase is continued even if a signal whose correlation level is low and which has the different distribution code is inputted. Thus, interference with another transmitter and influence owing to the interference signal are reduced.

17. 发明专利

JPH10234080A MOBILE COMMUNICATION EQUIPMENT 失效
公开(公告)号：JPH10234080A
公开(公告)日：1998-09-02
申请号：JP3507997
申请日：1997-02-19
申请人： NIPPON SOKEN
发明人： HIRAYAMA MASAHITO , KONO TATSUO
IPC分类号： H04W48/04 , H04Q7/38
摘要： PROBLEM TO BE SOLVED: To provide the mobile communication equipment that limits the use of a terminal equipment in an operation limit area with a new configuration. SOLUTION: A mobile communication terminal equipment detector as a transmitter detects it that a mobile communication terminal equipment 10 approaches an operation limit area and sends a radio wave with a prescribed code of a frequency band used for communication with the radio base station added thereto to the mobile communication terminal equipment 10. Upon the receipt of the radio wave from the mobile communication terminal equipment, when the code in the received radio wave denotes the prescribed code, the processing of limiting the use of the mobile communication terminal equipment 10 such as warning on an indicator, sound warning or interruption of a drive power supply to electronic components or the like is executed by the mobile communication terminal equipment 10.

18. 发明专利

JPH09114879A PLL CIRCUIT SIMULATION SYSTEM 失效
公开(公告)号：JPH09114879A
公开(公告)日：1997-05-02
申请号：JP29215995
申请日：1995-10-13
申请人： NIPPON SOKEN
发明人： HATTORI TOSHIHIRO , HIRAYAMA MASAHITO , YAMADA MICHIHARU , FUKUI SHINJI
IPC分类号： H03L7/093 , G06F17/00 , G06F17/50 , G06F19/00
摘要： PROBLEM TO BE SOLVED: To quantitatively, qualitatively and exactly perform a simulation for the controlling variable of a PLL circuit in the simulation of the transient change of the PLL circuit. SOLUTION: A simulation is performed by the function block described by the phase comparator block 2A describing each of the phase comparator of a PLL circuit, a loop filter, a voltage control oscillator, a frequency divider by each transfer function, a loop filter block 3, a voltage control oscillator block 4 performing an offset for the gain of a voltage control oscillator by the oscillation frequency or the frequency angle frequency in the voltage control oscillator when control voltage which is outputted from the loop filter 3 and controls the oscillation frequency of the voltage control oscillator is 0 and a frequency divider block 6. The gain for which the offset is performed is matched with the oscillation frequency of the voltage control oscillator. Also the controlled variable of other blocks is matched with the controlled variable in an actual circuit.

19. 发明专利

JP2009044712A Antenna device for transmission, and vehicle control system using antenna device for transmission 审中-公开
标题翻译：用于传输的天线装置和使用用于传输的天线装置的车辆控制系统
公开(公告)号：JP2009044712A
公开(公告)日：2009-02-26
申请号：JP2008072669
申请日：2008-03-20
申请人： Nippon Soken Inc , 株式会社日本自動車部品総合研究所
发明人： HIRAYAMA MASAHITO , NAOI TAKASHI , MAEDA NOBORU
IPC分类号： H01Q1/32 , B60R25/01 , B60R25/24 , E05B49/00
摘要： PROBLEM TO BE SOLVED: To provide an antenna device for transmission capable of obtaining a communication area in a wide range in a cabin by a single antenna, and a vehicle control system using the antenna device for transmission. SOLUTION: The antenna device for transmission which forms the communication area at least in the cabin in a vehicle includes a pair of a first antenna element 11a and a second antenna element 11b, and an LF transmission circuit 12 for transmitting a transmission signal after forming a communication area by making an electric field generated between the first antenna element 11a and the second antenna element 11b, wherein the first antenna element 11a and the second antenna element 11b are disposed so as to sandwich a space of the cabin in the vehicle. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够通过单个天线获得舱室中的宽范围内的通信区域的传输的天线装置，以及使用该天线装置进行传输的车辆控制系统。解决方案：至少在车辆的车厢中形成通信区域的用于传输的天线装置包括一对第一天线元件11a和第二天线元件11b，以及用于发送发送信号的LF发送电路12 在通过在第一天线元件11a和第二天线元件11b之间产生电场而形成通信区域之后，其中第一天线元件11a和第二天线元件11b被布置成将车厢的空间夹在车辆中。版权所有（C）2009，JPO＆INPIT

20. 发明专利

JP2009065280A Antenna unit 审中-公开
标题翻译：天线单元
公开(公告)号：JP2009065280A
公开(公告)日：2009-03-26
申请号：JP2007229373
申请日：2007-09-04
申请人： Nippon Soken Inc , 株式会社日本自動車部品総合研究所
发明人： NAOI TAKASHI , HIRAYAMA MASAHITO , MAEDA NOBORU
IPC分类号： H01Q7/06 , H01Q1/32
摘要： PROBLEM TO BE SOLVED: To provide an antenna unit having a wide directivity in a direction substantially perpendicular to the center axis of a loop antenna.
SOLUTION: The antenna unit includes a loop antenna with which winding of the element is carried out with at least one or more time surroundings, and a magnetic member arranged near the loop antenna. The loop antenna as a whole is arranged on one surface of the magnetic member. The magnetic member is prepared with a larger size compared to the loop antenna so as to make the formation range of magnetic field produced from the loop antenna in a direction substantially perpendicular to the center axis of a loop antenna wider than in the state that magnetic member is not arranged.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供在与环形天线的中心轴线基本垂直的方向上具有宽方向性的天线单元。解决方案：天线单元包括环形天线，该元件的绕组具有至少一个或多个时间周围的环绕，以及设置在环形天线附近的磁性构件。作为整体的环形天线布置在磁性构件的一个表面上。与环形天线相比，磁性构件的尺寸更大，从而使环形天线沿与环形天线的中心轴大致垂直的方向产生的磁场的形成范围大于磁性构件的状态没有安排。版权所有（C）2009，JPO＆INPIT

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