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98 条记录 (耗时 0.029 秒)

    Frequency converter
    12.
    发明授权
    Frequency converter 失效
    频率转换器

    公开(公告)号：US07002396B2

    公开(公告)日：2006-02-21

    申请号：US10481877

    申请日：2002-03-15

    申请人： Eiji Taniguchi ,  Chiemi Sawaumi ,  Noriharu Suematsu ,  Kenichi Maeda ,  Takayuki Ikushima ,  Hiroyuki Joba ,  Yoshinori Takahashi

    发明人： Eiji Taniguchi ,  Chiemi Sawaumi ,  Noriharu Suematsu ,  Kenichi Maeda ,  Takayuki Ikushima ,  Hiroyuki Joba ,  Yoshinori Takahashi

    IPC分类号： G06F7/44

    CPC分类号： H03D7/12 ,  H03D7/1433 ,  H03D7/1441 ,  H03D7/1458

    摘要： A frequency converter includes a transistor pair having a first transistor and a second transistor respectively having collector terminals commonly connected to each other and emitter terminals commonly connected to each other, the commonly-connected collector terminals of the transistor pair being connected to a power supply terminal by way of a first resistor, a third transistor having a collector terminal connected to the power supply terminal by way of a second resistor and an emitter terminal connected to the commonly-connected emitter terminals of the transistor pair, a third resistor having an end connected to the commonly-connected emitter terminals of the transistor pair, and another end grounded by way of a constant current source, and an output terminal connected to the commonly-connected collector terminals of the transistor pair. The frequency converter can exhibit an excellent saturation characteristic and an excellent distortion characteristic even when operating from a low voltage and/or a low current.

    摘要翻译： 一种频率转换器包括具有第一晶体管和第二晶体管的晶体管对，所述晶体管和第二晶体管分别具有彼此共同连接的集电极端子和共同连接的发射极端子，所述晶体管对的共同连接的集电极端子连接到电源端子 通过第一电阻器，具有通过第二电阻器连接到电源端子的集电极端子和连接到晶体管对的共同连接的发射极端子的发射极端子的第三晶体管，具有端部连接的第三电阻器 连接到晶体管对的共同连接的发射极端子，另一端通过恒定电流源接地，以及输出端子，连接到晶体管对的共同连接的集电极端子。 即使从低电压和/或低电流进行工作，变频器也能表现出优异的饱和特性和优异的失真特性。

    Memory management and protection system for virtual memory in computer system
    14.
    发明授权
    Memory management and protection system for virtual memory in computer system 失效
    计算机系统虚拟内存的内存管理和保护系统

    公开(公告)号：US5890189A

    公开(公告)日：1999-03-30

    申请号：US753944

    申请日：1996-12-03

    申请人： Hiroshi Nozue ,  Mitsuo Saito ,  Kenichi Maeda ,  Shigehiro Asano ,  Toshio Okamoto ,  Shin Sungho ,  Hideo Segawa

    发明人： Hiroshi Nozue ,  Mitsuo Saito ,  Kenichi Maeda ,  Shigehiro Asano ,  Toshio Okamoto ,  Shin Sungho ,  Hideo Segawa

    IPC分类号： G06F12/10 ,  G06F12/14 ,  G06F12/00

    CPC分类号： G06F12/1458 ,  G06F12/109 ,  G06F12/1483 ,  G06F12/1491 ,  G06F2212/656

    摘要： A memory management and protection system for realizing a high speed execution and a proper and flexible memory access control for multiple programs sharing an identical logical address space. In the system, the memory access is permitted according to a segment identifier identifying a segment in the logical address space, and a memory protection information for a region in each segment including a target right permission to indicate assigned rights to make a memory access from the region to each of the segments, and an execution permission to indicate a type of the memory access permitted by the right permission. Alternatively, a memory access can be permitted by using an access control list to be attached to each address table entry, which stores a plurality of program numbers identifying programs which are permitted to make accesses to the logical address stored in each address table entry, among which one that matches with the current program number is to be searched. Also, it is preferable to allocate a plurality of programs within a limit of available memory protection capacity to an identical logical address space, without any overlap between adjacently allocated address regions.

    摘要翻译： 一种用于实现高速执行的存储器管理和保护系统，以及用于共享相同逻辑地址空间的多个程序的适当且灵活的存储器访问控制。 在系统中，根据标识逻辑地址空间中的段的段标识符，允许存储器访问，以及每个区段中的区域的存储器保护信息，包括目标权限，以指示从存储器访问的指定的权限 区域，以及用于指示由权限许可允许的存储器访问的类型的执行许可。 或者，可以通过使用附加到每个地址表条目的访问控制列表来允许存储器访问，每个地址表条目存储多个程序号，标识被允许访问存储在每个地址表条目中的逻辑地址的程序， 将搜索与当前节目号匹配的那个。 此外，优选地，在可用存储器保护容量的限制内将多个程序分配给相同的逻辑地址空间，而不会在相邻分配的地址区域之间发生任何重叠。

    Combustion state-detecting system for internal combustion engines
    15.
    发明授权
    Combustion state-detecting system for internal combustion engines 失效
    内燃机燃烧状态检测系统

    公开(公告)号：US5390537A

    公开(公告)日：1995-02-21

    申请号：US149913

    申请日：1993-11-10

    申请人： Shigetaka Kuroda ,  Kenichi Maeda ,  Kazutomo Sawamura ,  Hiroshi Maruyama

    发明人： Shigetaka Kuroda ,  Kenichi Maeda ,  Kazutomo Sawamura ,  Hiroshi Maruyama

    IPC分类号： F02D45/00 ,  G01M15/11 ,  G01M15/00

    CPC分类号： G01M15/11

    摘要： A combustion state-detecting system for internal combustion engines has a crank angle sensor which generates a crank angle signal with a predetermined period shorter than a firing period of the spark plug whenever the crankshaft rotates through a predetermined angle. A value of the rotational speed of the engine is detected whenever the crank angle signal is generated. A rate of variation in the detected value of the rotational speed of the engine is calculated over the firing period of the spark plug, and an average value thereof is then calculated. The calculated average value of the variation rate is compared with the calculated variation rate, and a cumulative value of a difference between the calculated variation rate average value and the calculated variation rate is calculated when the calculated variation rate is on the larger deceleration side of the engine rotational speed with respect to the calculated variation rate average value. The calculated difference cumulative value is compared with a predetermined value to determine whether or not the engine is in a degraded combustion state, based on the comparison result.

    摘要翻译： 用于内燃机的燃烧状态检测系统具有曲柄角传感器，每当曲轴旋转预定角度时，其产生比火花塞的燃烧时间短的预定时段的曲柄角信号。 每当产生曲轴转角信号时，检测发动机转速的值。 在火花塞的点火期间计算发动机的转速的检测值的变化率，然后计算其平均值。 将所计算的变化率的平均值与计算出的变化率进行比较，计算出的变化率平均值与计算出的变化率之差的累计值，在计算出的变化率在 发动机转速相对于计算的变化率平均值。 将计算的差分累计值与预定值进行比较，以基于比较结果来确定发动机是否处于劣化燃烧状态。

    Electric motor with adhesively mounted magnet yoke
    17.
    发明授权
    Electric motor with adhesively mounted magnet yoke 失效
    电动机带有粘性磁轭

    公开(公告)号：US5264749A

    公开(公告)日：1993-11-23

    申请号：US805990

    申请日：1991-12-12

    申请人： Kenichi Maeda ,  Youji Maki ,  Norio Umezawa

    发明人： Kenichi Maeda ,  Youji Maki ,  Norio Umezawa

    IPC分类号： H02K1/12 ,  H02K1/17 ,  H02K15/02 ,  H02K23/04 ,  H02K15/03 ,  H02K5/00

    CPC分类号： H02K1/12 ,  H02K1/17 ,  Y10T29/49075

    摘要： An electric motor having a cylindrical frame with a thickness less than that of conventional electric motors. A tubular inner yoke is inserted in the cylindrical frame and in combination therewith serves as a magnetic path. The total thickness of the cylindrical frame and the inner yoke serves as a magnetic path substantially the same as that of a conventional electric motor frame. The inner yoke and thinner frame construction of the present invention reduces the total weight of the electric motor as compared with conventional electric motors. Additionally, the inner yoke has a plurality of protrusions for positioning the permanent magnets of the electric motor both axially and circumferentially thereon.

    Pattern recognition device
    18.
    发明授权
    Pattern recognition device 失效
    图案识别装置

    公开(公告)号：US4926491A

    公开(公告)日：1990-05-15

    申请号：US203505

    申请日：1988-06-06

    申请人： Kenichi Maeda ,  Hiroyuki Tsuboi ,  Yoichi Takebayashi

    发明人： Kenichi Maeda ,  Hiroyuki Tsuboi ,  Yoichi Takebayashi

    IPC分类号： G06K9/66 ,  G06K9/62

    CPC分类号： G06K9/6255

    摘要： A pattern recognition device is arranged to have learning of a reference pattern vector carried out in a recognition unit by making use of the pause periods in the recognition processing, without particularly providing a learning section for learning the reference pattern vector. Namely, a part or the entirety of the arithmetic processing unit where the recognition result is obtained in the recognition unit by collating the input pattern with the recognition dictionary, can be utilized as the learning portion of the reference pattern vector. In concrete terms, the operation of multiplication-accumulation (inner product) which represents the main operation in the recognition processing and the learning processing, can be carried out by means of similar processes of handling. Therefore, by utilizing the processing section for sum of the products operation, of the recognition unit, which is in the idle state for pattern recognition, it becomes possible to carry out learning the reference pattern vector efficiently in time, without forcibly interrupting the pattern recognition processing by formally setting a learning condition.

    摘要翻译： 图案识别装置被配置为通过利用识别处理中的暂停时段来学习识别单元中执行的参考图案矢量，而不特别提供用于学习参考图案矢量的学习部分。 也就是说，通过将输入图案与识别字典进行对照，在识别单元中获得识别结果的算术处理单元的一部分或全部可以用作参考图案向量的学习部分。 具体来说，可以通过类似的处理过程来实现表示识别处理和学习处理中的主要操作的乘积（内积）的操作。 因此，通过利用处于处于空闲状态的模式识别的识别单元的产品操作的总和的处理部分可以在时间上有效地执行参考模式向量的学习，而不强制中断模式识别 通过正式设置学习条件进行处理。