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1. 发明专利

JP2000090334A IC CARD READER-WRITER AND AUTOMATIC CHARGE RECEPTION DEVICE PROVIDED WITH THE SAME 失效
公开(公告)号：JP2000090334A
公开(公告)日：2000-03-31
申请号：JP25541398
申请日：1998-09-09
申请人： HITACHI LTD
发明人： ISHIBUCHI KIYOHISA , KUROSAWA MICHIAKI , HORII SHIRO , ABE KOJI
IPC分类号： G06K17/00 , G07F7/08 , G07F7/12
摘要： PROBLEM TO BE SOLVED: To reduce the time and labor of inputting an identification number every time of mounting an IC card. SOLUTION: This IC card reader-writer is provided with an input number preservation memory 13 for storing an inputted identification number, an IC card detection part 23 for detecting whether or not the IC card is mounted and a CPU 12 for retrieving whether or not the identification number is stored in the input number preservation memory 13 when the mounting of the IC card 30 is detected. When the identification number is stored in the input number preservation memory 13, the input identification number is transmitted to the IC card 30. Then, it is compared with the identification number stored in the authentication identification number preservation memory 33 of the IC card 30, and when both numbers match, access with the IC card 30 is started.

2. 发明专利

JPH05300014A 失效
公开(公告)号：JPH05300014A
公开(公告)日：1993-11-12
申请号：JP10478692
申请日：1992-04-23
申请人： HITACHI LTD
发明人： NAKAGAWA JUNICHI , KOKUBO MASARU , KUROSAWA MICHIAKI
IPC分类号： H03L7/06 , H03L7/091 , H03L7/18
摘要： PURPOSE:To reduce the circuit scale of a phase correction device by integrating a differentiation phase difference between reference differentiation phase information and differentiation phase information obtained from phase information extracted from a voltage/current controlled oscillator so as to obtain a phase error. CONSTITUTION:A reference oscillator 11 generates a tooth-shaped wave reference signal with a prescribed frequency and a differentiation phase is obtained by extracting phase information from a reference signal differentiation phase generating section 13. The output of a VCO 15 is a tooth-shaped wave signal and the differentiation phase is obtained by extracting the phase information from a tooth-shaped wave signal differentiation phase generating section 17. A differentiation phase comparator 18 obtains the difference of the differentiation phases from the generating sections 13, 17 and gives the differentiation phase difference to an integrator 19. the integrator 19 integrates the differentiation phase difference to obtain a phase error and the phase error is used to control the oscillating frequency of the VCO via a signal processing section 20 and a voltage converter 21. Thus, the phase jump of 2pi caused in the phase error signal is eliminated to reduce the circuit scale.

3. 发明专利

JPS5910040A Space diversity receiver 失效
标题翻译：空间多样性接收器
公开(公告)号：JPS5910040A
公开(公告)日：1984-01-19
申请号：JP11847282
申请日：1982-07-09
申请人： Hitachi Ltd
发明人： NAKAMURA TOORU , KUROSAWA MICHIAKI , TOGAWA FUMIO
IPC分类号： H04B7/08
CPC分类号： H04B7/0814
摘要： PURPOSE:To shorten the receiving time at an antenna in an inferior receiving state, by discriminating the receiving state after a prescribed time when the receiving antenna is switched, then switching again to the original antenna if the receiving state is deteriorated by switching. CONSTITUTION:A signal C is delivered from an AM detector 6 until a time point (t). If the electric field of an antenna 1a is deteriorated at a time point t1 and the signal C drops, only a positive differential output D is delivered from a diode 14i. The Q output E of a time constant circuit 15b is kept at ''L'' until the point t1, and a signal D raises the output E up to ''H'' and keeps this level for a prescribed time T1. The positive differential output of a diode 15e raises the Q output F of a time constant circuit 15f up to ''H'' and keep this level for a prescribed time T2. Then Q of FF15g and the Q output are inverted to have a switch to an antenna 1b. When the output E of the circuit 15b is set at level ''L'', an EFT gate 15h is turned off. Then the immediately preceding signal C is held at a capacitor 15i, and a holding signal G is kept until a time point t3. During this period, a comparator 15j compares the signals received before and after switching with each other. If the switching has an adverse effect, switching is restored to the position of an original antenna.
摘要翻译：目的：为了缩短在接收状态较差的天线的接收时间，通过在接收天线被切换的规定时间之后识别接收状态，如果接收状态通过切换恶化，则再次切换到原始天线。构成：信号C从AM检测器6传送到时间点（t）。如果天线1a的电场在时间点t1劣化并且信号C下降，则仅从二极管14i传送正差分输出D. 时间常数电路15b的Q输出E保持为“L”直到点t1，信号D将输出E升高到“H”，并将该电平保持规定时间T1。二极管15e的正差分输出将时间常数电路15f的Q输出F提高到“H”，并将该电平保持规定时间T2。然后将FF15g的Q和Q输出反转，以切换到天线1b。当电路15b的输出E被设置为电平“L”时，EFT门15h被关断。然后紧接在前的信号C被保持在电容器15i处，保持信号G保持到时间点t3为止。在此期间，比较器15j将切换之前和之后接收的信号进行比较。如果切换有不利影响，则切换恢复到原始天线的位置。

4. 发明专利

JPS581857B2 失效
公开(公告)号：JPS581857B2
公开(公告)日：1983-01-13
申请号：JP7192275
申请日：1975-06-16
申请人： HITACHI LTD
发明人： KUROSAWA MICHIAKI
IPC分类号： H04B1/16 , H04H20/00 , H04H20/28 , H04H20/55 , H04H40/27 , H04H60/15 , H04H60/37

5. 发明专利

JPH1051951A POWER SUPPLY CONTROLLER 失效
公开(公告)号：JPH1051951A
公开(公告)日：1998-02-20
申请号：JP20479596
申请日：1996-08-02
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： KONI MITSURU , SAITO HIROYUKI , YOSHIDA TATSUYA , SAKAMOTO SHINICHI , HORIBE KIYOSHI , KUROSAWA MICHIAKI , SATO KENJI
IPC分类号： B60R16/02 , H02J1/00
摘要： PROBLEM TO BE SOLVED: To provide a power supply controller which can reduce the current consumption of a vehicle when electrical parts are not used by preventing the occurrence of a vehicle fire caused by the short circuit of a power cable and the failure of a load driving element itself and detecting the short circuit and disconnection of a driven load and, at the same time, informing the outside of the same. SOLUTION: A power distributor 4 is connected to a power line 3 from a battery 1 so as to distribute the power supplied from the battery 1 and the power lines 5, 6, and 7 of different systems are wired from the distributor 4. In addition, power supply terminals 8, 11, 14, 18, and 21 are provided at the ends of the power lines 5, 6, and 7 so that electric power can be supplied to various kinds of electrical load devices 9, 12, 15, 17, and 20. Therefore, the space to be occupied by fuses and relays become unnecessary and a maintenance-free power supply controller is obtained. In addition, the number of wire harnesses can be reduced and the occurrence of a vehicle fire caused by a short-circuiting accident can be eliminated. Moreover, the service time can be shortened and troubles can be detected in early stages, because the outside can be informed of the states of electric parts.

6. 发明专利

JPH04290098A MOBILE COMMUNICATION SYSTEM 失效
公开(公告)号：JPH04290098A
公开(公告)日：1992-10-14
申请号：JP5432291
申请日：1991-03-19
申请人： HITACHI LTD
发明人： KINOSHITA YASUAKI , NAKAKOSHI ARATA , SUZUKI HIDEYA , NAKAZAWA HIDEO , FUJIWARA YUKINARI , KUROSAWA MICHIAKI
IPC分类号： H04W36/32 , H04W52/02
摘要： PURPOSE:To perform mobile switching without interrupting speech even when the service area of a base station is changed while the speech is being performed in a mobile communication system for broad band cordless telephone in a building connected to an exchange and city area. CONSTITUTION:A purpose can be attained by learning a cell boundary line where electric field strength between the base stations (1, 2, and 3) are set equal by a central station (15) in advance, and calculating the position and the travel speed of mobile machines (7, 8) by measuring the electric field strength of the mobile machines. In such a way, (a) the arithmetic rule of the mobile machine can be simplified even in the building in which cell shape is complicated, and (b) urgency can be decided by calculating a time when the mobile machine arrives at the boundary line, which reduces arithmetic processing quantity, and also, (c) it is possible to realize soft mobile switching for the switching of the base station with a simple arithmetic rule and to improve speech quality.

7. 发明专利

JPH0363951A ON-VEHICLE VIDEO TAPE UNIT 失效
公开(公告)号：JPH0363951A
公开(公告)日：1991-03-19
申请号：JP19938189
申请日：1989-08-02
申请人： HITACHI LTD
发明人： TOGAWA FUMIO , KUROSAWA MICHIAKI
IPC分类号： G11B15/00 , G11B15/02
摘要： PURPOSE:To prevent the position of a tape from being changed even when a key interlock power source is repeatedly turned ON/OFF and to start reproducing from a stopped picture by keeping a turned-OFF state even in case that the power source is turned ON when the tape is set in a stopped state and returning the states of the tape and power source to be original when the tape is set in any state excepting for the stopped state. CONSTITUTION:When a key interlock power source 5 is turned OFF by the key of a car during the operation of a video 9, a video control microcomputer 5 stores the operating state of the video to an internal memory and sets the video in the stopped state. When the key is turned OFF, the turned-OFF state of a power supply part 7 is maintained. When a key 2 is turned ON again and the video 9 is set in the stopped state before the power source is turned OFF, the state for the tape position is kept as it is by keeping the turned-OFF state of the power source. In the case of the operating state excepting for the stopped state, the dip of the tape is removed before the power supply part 7 is turned ON and operation is executed. After processing is executed to prevent the tape from being rolled in, the operation is returned to the original operating state. Thus, even when the key of the card is repeatedly turned ON/OFF, the tape position is not changed and reproducing can be started from the position where the video is stopped.

8. 发明专利

JPS63209297A ON-VEHICLE AUDIO SYSTEM 失效
公开(公告)号：JPS63209297A
公开(公告)日：1988-08-30
申请号：JP4036387
申请日：1987-02-25
申请人： HITACHI LTD
发明人： TAKASHIMA TADAO , OZAWA HIROSHI , TOGAWA FUMIO , KUROSAWA MICHIAKI
IPC分类号： B60R11/02 , G11B31/00 , H04Q9/00
摘要： PURPOSE:To improve an operability and to attain a safety in driving a vehicle by providing a remote control key on the handle of a driver's seat and defining the remote control key to a desired function previously by the driver to reduce the number of keys. CONSTITUTION:The remote control key 3 is disposed at the central part of the handle 1, an audio system main body 2 controlled by this remote control key 3 is formed by combining a radio and an audio deck and the respective key functions are applied to the respective keys 3a-3d of the remote control key 3. By disposing the remote control key 3 on the handle 1, the driver can extremely easily control the audio system and the remote control key 3 can be previously defined to be the function desired by the driver, for instance, a function high in an using frequency, thereby, the number of the keys is reduced and the operability can be improved.

9. 发明专利

JPS5919444A Space diversity receiver 失效
标题翻译：空间多样性接收器
公开(公告)号：JPS5919444A
公开(公告)日：1984-01-31
申请号：JP12750282
申请日：1982-07-23
申请人： Hitachi Ltd
发明人： TOGAWA FUMIO , KUROSAWA MICHIAKI , NAKAMURA TOORU
IPC分类号： H04B7/08
CPC分类号： H04B7/0814
摘要： PURPOSE:To decrease noise, by switching a set level of a discriminating circuit with the electric field strength for providing a chance to switch an antenna even if a radio wave itself goes to weak and noise is increased. CONSTITUTION:A signal from an intermediate amplifier 6 is applied to a low pass filter 16 and a filter 18 eliminating components of
摘要翻译：目的：为了降低噪声，通过用电场强度切换识别电路的设定电平，即使无线电波本身变弱并且噪声增加，也提供了切换天线的机会。构成：来自中间放大器6的信号被施加到低通滤波器16和滤波器18，以消除<= 19kHz的分量。此外，在检测器19处被转换为DC的信号被施加到识别电路20，并且当电平处于设定电平或以上时产生触发信号。另一方面，当敏感的开关电路21由于无线电波弱时自身的噪声而产生AM分量。于是电路20的识别电平增加并且防止故障。采样保持电路12由触发信号操作，保持下侧检测器17的输出信号电平，然后将电路12的输出与具有天线切换后电平的检测器17的输出进行比较，如果检测器17的输出较大，使用中的天线原样保持。

10. 发明专利

JPS5910041A Space diversity receiver 失效
标题翻译：空间多样性接收器
公开(公告)号：JPS5910041A
公开(公告)日：1984-01-19
申请号：JP11847382
申请日：1982-07-09
申请人： Hitachi Ltd
发明人： NAKAMURA TOORU , KUROSAWA MICHIAKI , TOGAWA FUMIO
IPC分类号： H04B7/08
CPC分类号： H04B7/0814 , H04B7/0831
摘要： PURPOSE:To improve acoustic sense, by providing a means to detect switching of antennas and changing properly the degree of stereo separation by a signal which detects the switching required for the detected antenna. CONSTITUTION:When the output of an AM wave detector 6 drops with deterioration of the received signal, the output of a comparator 14f of a switch detecting circuit 14 is changed to ''H'' level and then differentiated to be sent to a diode 17. An integration circuit consisting of a resistance 18 and a capacitor 19 integrates the negative component of the corresponding detecting signal owing to existence of a diode 17. Therefore, the potential of a joint C drops less as the switch detecting signals are produced more. The output B of an adder circuit 16, i.e., the control voltage for stereo separation degree is fed to a stereo demodulator 11 to control the stereo separation degree. The higher the level of the output signal B, the better the stereo separation degree. Therefore, when the switching of antennas is carried out frequently with deterioration of the received signal, the stereo separation degree drops much less than the level of a normal state. This reduces the noise of the input signal of the demodulator 11 and then improves the acoustic sense during reception.
摘要翻译：目的：通过提供检测天线切换和通过检测检测到的天线所需的切换的信号正确改变立体声分离的程度来改善声学感测。构成：当AM波检测器6的输出随着接收信号的劣化而下降时，开关检测电路14的比较器14f的输出变为“H”电平，然后被微分以送到二极管17 由电阻18和电容器19组成的积分电路由于二极管17的存在而积分了相应的检测信号的负分量。因此，随着开关检测信号的产生更多，接头C的电位降低。加法器电路16的输出B，即用于立体声分离度的控制电压被馈送到立体声解调器11以控制立体声分离度。输出信号B的电平越高，立体声分离度越好。因此，当天线的切换频繁地随着接收信号的恶化而进行时，立体声分离度比正常状态的水平要差得多。这降低了解调器11的输入信号的噪声，然后改善了接收期间的声学感觉。

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