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公开(公告)号：EP1431865A3
公开(公告)日：2006-08-09
申请号：EP03029004.3
申请日：2003-12-16
申请人： Hitachi, Ltd.
IPC分类号： G06F1/32
CPC分类号： F02D41/062 , F02D41/1494 , F02D41/26 , F02N2300/302 , G06F1/3215 , Y10T307/25 , Y10T307/305
摘要： The present invention relates to an electrical control unit for an automobile of which standby electric current is smaller. In an electrical control unit for an automobile having a microcomputer (30), an input circuit, a driver circuit, and a power supply circuit (10), which is started by a wake-up signal from the circuit other than the ignition switch even when the ignition switch of the automobile is cut off, the microcomputer (30) is started by shifting the power supply circuit (10) from an inert state to an active state to generate the voltage for operating the microcomputer (30), and the predetermined processing is executed.
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公开(公告)号：EP1235335A3
公开(公告)日：2003-08-27
申请号：EP01119693.8
申请日：2001-08-23
申请人： Hitachi, Ltd.
CPC分类号： H02M3/156
摘要： In order to ensures a stable reduction of noise level at all times, in the steps of switching input voltage with a switching element (10), smoothing the voltage of rectangular wave obtained by switching with a reactor L and capacitor Cf and outputting it, the voltage obtained by dividing the output voltage is compared with the sawtooth wave output from a sawtooth wave generator (14) by a comparator (12). When the switching signal in response to the result of this comparison is applied to the switching element (10), the counter (16) is actuated synchronously with the vertex of the sawtooth wave to perform opening/closing operation of the switch SW1. The time constant of the time constant circuit comprising a R0 and C is adjusted according to whether a resistor R1 is present or not, and the signals of frequencies f1 and f2 coming out of the sawtooth wave generator (14) are sequentially switched to be sent to the comparator (12). The peak of the switching noise is diffused in the frequency range by sequential selection of switching frequencies, and noise level is reduced by diffusion of noise energy.
摘要翻译： 为了始终确保噪声电平的稳定降低，在利用开关元件（10）切换输入电压的步骤中，平滑通过用电抗器L和电容器Cf切换而获得的矩形波的电压并输出， 通过将输出电压分压得到的电压与通过比较器（12）从锯齿波发生器（14）输出的锯齿波进行比较。 当响应于该比较的结果的切换信号被施加到开关元件（10）时，计数器（16）与锯齿波的顶点同步地启动，以执行开关SW1的打开/关闭操作。 根据是否存在电阻R1来调整包括R0和C的时间常数电路的时间常数，并且顺序地切换从锯齿波发生器（14）出来的频率f1和f2的信号被发送 到比较器（12）。 开关噪声的峰值通过顺序选择开关频率在频率范围内扩散，并且通过噪声能量的扩散来降低噪声电平。
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公开(公告)号：EP0902358A3
公开(公告)日：2002-01-02
申请号：EP98120014.0
申请日：1992-06-22
发明人： Kawasaki, Shumpei , Sakakibara, Eiji , Fukada, Kaoru , Yamazaki, Takanaga , Akao, Yasushi , Baba, Shiro , Kihara, Toshimasa , Kurakazu, Keiichi , Tsukamoto, Takashi , Masumura, Shigeki , Tawara, Yasuhiro , Kashiwagi, Yugo , Fujita, Shuya , Ishida, Katsuhiko , Noriko, Sawa , Asano, Yoichi , Chaki, Hideaki , Sugawara, Tadahiko , Kainaga, Masahiro , Noguchi, Kouki , Watabe, Mitsuru
IPC分类号： G06F7/52
CPC分类号： G06F7/535 , G06F9/30 , G06F9/3001 , G06F9/30112 , G06F9/3013 , G06F9/30145 , G06F9/30149 , G06F9/3016 , G06F9/30163 , G06F9/30167 , G06F9/30181 , G06F9/30189 , G06F9/322 , G06F9/324 , G06F9/3557 , G06F9/3802 , G06F9/3814 , G06F9/3836 , G06F9/3857 , G06F9/3859 , G06F9/3867 , G06F2207/5352
摘要： A circuit and method for performing signed integer division by repeated division processing, in which a new partial remainder is formed by subtracting (or adding) a divisor from (to) a dividend or a partial remainder in accordance with the sign of the dividend or the partial remainder and the sign of the divisor, and a quotient bit is formed on the basis of the sign of the partial remainder and the sign of the divisor, wherein a pre-processing step corrects the dividend by subtracting 1 from the dividend if it is negative, and a post-processing step corrects the quotient formed by the repeated division processing on the basis of its sign.
摘要翻译： RISC型微处理器的固定结构长度为2 n位，数据使用大小为2 m，m大于或等于n。
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公开(公告)号：EP0180196A3
公开(公告)日：1988-04-06
申请号：EP85113745
申请日：1985-10-29
申请人： HITACHI, LTD.
发明人： Morinaga, Shigeki , Watabe, Mitsuru
CPC分类号： G04G99/006 , G04G15/006
摘要： A counter/timer device includes a plurality of registers (105) each capable of performing any of the function of a counter/timer register, the function of a capture register and the function of a compare register, in accordance with a command from a central processing unit, and a plurality of task registers (103) corresponding to tasks which are to be carried out by using the above registers. Each of the task registers stores a task instruction for specifying a counter/timer register and a capture/compare register which are used in a task, and for specifying the operation mode of each of the specified registers. The task registers are scanned to successively read out the task instructions, and each of the read-out task instructions controls the operation of each of registers used in a corresponding task. Thus, tasks corresponding to the task instructions are all carried out at once.
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公开(公告)号：EP1431865B1
公开(公告)日：2019-03-27
申请号：EP03029004.3
申请日：2003-12-16
申请人： Hitachi, Ltd.
IPC分类号： G06F1/32
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16.发明公开Control circuit module, intake air passage body, engine electronic control device, and engine air intake system provided with the same 有权控制电路模块，Ansaugluftzufuhrvorrichtung，电子发动机控制装置，以及与此Motoransaugvorrichtung模块
公开(公告)号：EP1342909A3
公开(公告)日：2010-03-31
申请号：EP02022373.1
申请日：2002-10-09
申请人： Hitachi, Ltd.
发明人： Sakurai, Kohei , Ohsuga, Minoru , Kanekawa, Nobuyasu , Hoshino, Masatoshi , Kanke, Atsushi , Nishimura, Yutaka , Watabe, Mitsuru , Urushiwara, Noriyoshi
CPC分类号： F02M35/10249 , F01P2050/30 , F02D9/02 , F02D9/105 , F02D41/3005 , F02D2400/18 , F02M35/10019 , F02M35/10321 , F02M35/10347 , F02M35/1038 , F02M35/10386
摘要： The invention relates to an engine electronic control unit (1) that is inserted through a through hole provided in an intake pipe and mounted in an intake air passage (3) in a direction substantially perpendicularly with respect to a plane of the intake pipe forming the intake air passage (3). This unit is then secured to the intake pipe using a fixing flange (22) provided at a connector portion (21). A fixing rail (5) is protruded inside the intake pipe and leading edges of a metal base (12) and a metal cover (13) of the unit are inserted into this rail, thereby securing in position an end opposite to a side of the connector portion (21) of the unit. This realizes an engine electronic control unit offering an outstanding heat radiation performance and vibration resistance, without having to provide special heat radiating parts or without involving an increase in an intake air resistance within the intake air passage (3). By using such an engine electronic control unit, it is possible to provide a low-cost, compact engine air intake system.
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公开(公告)号：EP1223332A3
公开(公告)日：2004-01-14
申请号：EP01118880.2
申请日：2001-08-16
申请人： Hitachi, Ltd.
发明人： Kanekawa, Nobuyasu , Sakurai, Kohei , Watabe, Mitsuru , Sasaki, Shoji , Tabuchi, Kenji , Hayashibara, Toshio
IPC分类号： F02M31/02 , F02M31/12 , F02M31/135
CPC分类号： F02M31/02 , Y02T10/126
摘要： A heating device is capable of efficiently heat a heated body as heating object. The heating device includes a heating body (1), a power source (5) for supplying a current to the heating body (1), a current control element (4) controlling current flowing through the heating body (1), and a heat conductive body (2) to be thermally coupled with the heating body (1) and the current control element (4) for transmitting heat generated by the heating body (1) and heat generated by the current control element (4) to a heating object.
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公开(公告)号：EP0649100B1
公开(公告)日：2003-07-02
申请号：EP94115140.9
申请日：1994-09-26
申请人： Hitachi, Ltd.
发明人： Satoh, Jun , Yamagishi, Kazushige , Nakashima, Keisuke , Katsura, Koyo , Miyamoto, Takashi , Watabe, Mitsuru , Ohmura, Kenichiroh
CPC分类号： G09G5/393 , G06F1/04 , G06F1/12 , G06F12/0207 , G06F13/1689 , G06F13/4243 , G06F15/7832 , G06T1/60 , G09G5/001 , G09G5/395 , G09G5/399 , G09G2320/0252 , G09G2350/00 , G09G2360/128 , G09G2370/10 , G11C8/04 , G11C8/06 , G11C8/10 , G11C8/12 , G11C8/18
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公开(公告)号：EP0649100A3
公开(公告)日：1997-02-26
申请号：EP94115140.9
申请日：1994-09-26
申请人： HITACHI, LTD.
发明人： Satoh, Jun , Yamagishi, Kazushige , Nakashima, Keisuke , Katsura, Koyo , Miyamoto, Takashi , Watabe, Mitsuru , Ohmura, Kenichiroh
CPC分类号： G09G5/393 , G06F1/04 , G06F1/12 , G06F12/0207 , G06F13/1689 , G06F13/4243 , G06F15/7832 , G06T1/60 , G09G5/001 , G09G5/395 , G09G5/399 , G09G2320/0252 , G09G2350/00 , G09G2360/128 , G09G2370/10 , G11C8/04 , G11C8/06 , G11C8/10 , G11C8/12 , G11C8/18
摘要： A data processor comprises a bus control circuit (14) adapted to be interfaced with a synchronous DRAM (22) which can be accessed in synchronism with a clock signal (CLK), a plurality of data processing modules (12, 13) coupled to said bus control circuit (14) for producing data and addresses for accessing a memory (22), and a clock driver (16) for feeding intrinsic operation clocks to said data processing modules (12, 13) and for feeding the clock signal for accessing said memory (22) in synchronism with the operations of said data processing modules (12, 13) to be operated by the operation clock signals, to the outside.
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公开(公告)号：EP0287115B1
公开(公告)日：1994-11-09
申请号：EP88106049.5
申请日：1988-04-15
发明人： Morinaga, Shigeki , Nakagawa, Norio , Watabe, Mitsuru , Ohba, Mamoru , Kida, Hiroyuki , Kajiwara, Hisashi , Asai, Takeshi , Tatezaki, Junichi
IPC分类号： G06F9/38
CPC分类号： G06F9/3877 , G06F9/3885
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