专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5751191A Reproducing signal amplifier and central value signal generator 失效
标题翻译：再现信号放大器和中心值信号发生器
公开(公告)号：US5751191A
公开(公告)日：1998-05-12
申请号：US708064
申请日：1996-08-12
申请人： Kenichi Ishida , Michinori Kishimoto , Takashi Yamamoto , Koji Sushihara
发明人： Kenichi Ishida , Michinori Kishimoto , Takashi Yamamoto , Koji Sushihara
IPC分类号： G11B5/02 , H03F3/30 , H03F3/45 , H03F3/68
CPC分类号： H03F3/3066 , G11B5/02 , H03F3/45479
摘要： A magnetic recording device includes a magnetic disk drive for recording desired information as a magnetic signal and a reproducing signal amplifier for amplifying a small electric signal obtained by converting the magnetic signal. The reproducing signal amplifier includes an amplifier for amplifying a small electric signal supplied through an input terminal into an amplified signal having an appropriate amplitude, a central value detection circuit for detecting a central value of the AC component of the amplified signal output by the amplifier and outputting a central value signal consisting of the DC component of the amplified signal, and a subtracter for obtaining a difference between the amplified signal and the central value signal and outputting a reproducing signal.
摘要翻译：磁记录装置包括用于记录作为磁信号的期望信息的磁盘驱动器和用于放大通过转换磁信号而获得的小电信号的再现信号放大器。再现信号放大器包括放大器，用于将通过输入端提供的小电信号放大为具有适当振幅的放大信号;中央值检测电路，用于检测由放大器输出的放大信号的AC分量的中心值;以及输出由放大信号的DC分量组成的中心值信号，以及减法器，用于获得放大信号和中心值信号之间的差，并输出再现信号。

2. 发明授权

US06252440B1 Write-driver circuit 有权
标题翻译：写驱动电路
公开(公告)号：US06252440B1
公开(公告)日：2001-06-26
申请号：US09445392
申请日：2000-03-07
申请人： Koji Sushihara , Takashi Yamamoto , Kenichi Ishida
发明人： Koji Sushihara , Takashi Yamamoto , Kenichi Ishida
IPC分类号： H03K300
CPC分类号： G11B5/022 , G11B5/012 , G11B5/02 , G11B5/09 , G11B5/40
摘要： In a write driver circuit for switching the direction of a write current passing through a magnetic head or the like having an inductance component, an H-shaped bridge circuit is formed by using four NPN transistors in order to switch the write current at a high speed. Four switching means for controlling the base potentials of the four NPN transistors are provided and two switching means for rapidly decreasing the base potential of one of the two NPN transistors on the power source side, which is turned off when the write current passing through the magnetic head is switched are provided, thereby widening a voltage difference occurring between both terminals of the magnetic head.
摘要翻译：在用于切换通过具有电感分量的磁头等的写入电流的写入驱动电路中，通过使用四个NPN晶体管形成H形桥接电路，以便以高速切换写入电流。提供用于控制四个NPN晶体管的基极电位的四个开关装置，以及用于快速降低电源侧的两个NPN晶体管中的一个的基极电位的两个开关装置，当写入电流通过磁提供头部切换，从而扩大在磁头的两个端子之间出现的电压差。

3. 发明授权

US5627490A Amplifier circuit 失效
标题翻译：放大器电路
公开(公告)号：US5627490A
公开(公告)日：1997-05-06
申请号：US597258
申请日：1996-02-06
申请人： Koji Sushihara , Takashi Yamamoto , Ikuo Imanishi , Tsuyoshi Nakamura , Michinori Kishimoto , Kenichi Ishida
发明人： Koji Sushihara , Takashi Yamamoto , Ikuo Imanishi , Tsuyoshi Nakamura , Michinori Kishimoto , Kenichi Ishida
IPC分类号： G05F3/26 , H03F1/48 , H03F3/42 , H03K3/45
CPC分类号： H03F3/42 , G05F3/265 , H03F1/48
摘要： An amplifier circuit for amplifying a change in a resistance value of a magnetic resistance element is formed by connecting a first and a second current mirror circuits having the same structure in cascode, so that a voltage change is amplified without using a capacitive coupling. Hence, a high-pass filter is not created as a parasitic circuit, whereby a gain is maintained high in the low frequency region and a low frequency characteristic is excellent. Further, since control electrodes of transistors which form each current mirror circuit are grounded through the capacitance, a noise is reduced without using a conventional feedback circuit. This eliminates an influence of the feedback circuit over a high frequency characteristic, and therefore, a high frequency characteristic becomes excellent.
摘要翻译：通过将具有相同结构的第一和第二电流镜电路串联连接形成用于放大电阻元件的电阻值变化的放大器电路，从而在不使用电容耦合的情况下放大电压变化。因此，不产生高通滤波器作为寄生电路，从而在低频区域中增益保持较高，并且低频特性优异。此外，由于形成每个电流镜电路的晶体管的控制电极通过电容接地，所以在不使用常规反馈电路的情况下，噪声降低。这消除了反馈电路对高频特性的影响，因此高频特性变得优异。

4. 发明授权

US06803765B2 Misfire detection system for internal combustion engines 失效
标题翻译：内燃机失火检测系统
公开(公告)号：US06803765B2
公开(公告)日：2004-10-12
申请号：US10022869
申请日：2001-12-20
申请人： Kenichi Ishida , Toshihiro Okama , Gakuji Moriya , Kazuyuki Kubo , Tomoyuki Kimura
发明人： Kenichi Ishida , Toshihiro Okama , Gakuji Moriya , Kazuyuki Kubo , Tomoyuki Kimura
IPC分类号： F02P1700
CPC分类号： F02P17/12 , F02P2017/006 , F02P2017/125 , G01L23/225 , G01M15/11
摘要： In a system for detecting misfire for an internal combustion engine wherein ionization current that flows following the discharge current is detected and integrated during a period (gate) and occurrence of misfire of the engine is detected based on the integrated value, a processing delay circuit is provided which inputs at least one of the discharge current or the ionization current and based on the inputted current, delays starting of the period by a time point which is not earlier than termination of the discharge current. With this, the system is unaffected by fluctuation in ignition coil discharge period, various kinds of noise and the like, and can therefore ensure accurate misfire detection by preventing erroneous detection owing to such causes.
摘要翻译：在用于检测内燃机的失火的系统中，基于积分值来检测在一段时间（门）期间检测并积分在发动机失火发生之后流过的电流电流的内燃机，处理延迟电路是只要输入至少一个放电电流或电离电流并且基于输入的电流，延迟该周期的开始时间点不早于放电电流的终止。因此，该系统不受点火线圈放电期间的波动，各种噪声等的影响，因此可以通过防止由于这种原因的错误检测而确保准确的失火检测。

5. 发明授权

US5805581A Mobile communication system using various multiple access methods 失效
标题翻译：移动通信系统采用各种多种接入方式
公开(公告)号：US5805581A
公开(公告)日：1998-09-08
申请号：US524974
申请日：1995-09-08
申请人： Yoshinori Uchida , Kenichi Ishida , Takashi Kashiwagi
发明人： Yoshinori Uchida , Kenichi Ishida , Takashi Kashiwagi
IPC分类号： H04J4/00 , H04B7/185 , H04J3/00 , H04J13/00 , H04W4/24 , H04W16/02 , H04W36/00 , H04W36/14 , H04W48/20 , H04W72/10 , H04W74/02 , H04W74/04 , H04W76/02 , H04J13/02
CPC分类号： H04W4/24 , H04B7/18532 , H04J13/10 , H04M2215/32 , H04W36/14 , H04W72/10 , H04W88/06
摘要： A mobile communication system in which various access methods may be selected according to the user's priority. In the mobile communication system, each of mobile stations and radio base stations has a radio processor, which has TDMA, CDMA and FDMA communication units. The CDMA communication unit comprises channel coders each for performing a primary modulation to a transmitting signal, spread-spectrum code generators for respectively generating different spread-spectrum signals, a clock generator/controller for controlling the generation of chip clocks to control the generation of the spread-spectrum codes, oscillators for setting different carrier frequencies to outputs calculated as products, and a CPU for generally controlling various parts or elements to control the assignment of a CDMA signal or a TDMA signal to an arbitrary time slot transmitted from the TDMA communication unit. The radio processor transmits different signals of different access methods existing in each time slot of the same frame different signals.
摘要翻译：一种移动通信系统，其中可以根据用户的优先级选择各种接入方法。在移动通信系统中，移动台和无线基站各有一个具有TDMA，CDMA和FDMA通信单元的无线电处理器。 CDMA通信单元包括各自用于对发送信号执行一次调制的信道编码器，用于分别生成不同扩频信号的扩频码发生器，用于控制生成芯片时钟以控制生成不同扩频信号的时钟发生器/ 扩频码，用于将不同载波频率设置为以产品计算的输出的振荡器，以及用于通常控制各种部件或元件以控制CDMA信号或TDMA信号到从TDMA通信单元发送的任意时隙的分配的CPU 。无线电处理器发送存在于相同帧不同信号的每个时隙中的不同接入方式的不同信号。

6. 发明授权

US5659878A Mobile communication system with satellite communication hand off capability 失效
标题翻译：具有卫星通信功能的移动通信系统
公开(公告)号：US5659878A
公开(公告)日：1997-08-19
申请号：US321609
申请日：1994-10-12
申请人： Yoshinori Uchida , Masako Kimura , Kenichi Ishida
发明人： Yoshinori Uchida , Masako Kimura , Kenichi Ishida
IPC分类号： H04Q7/22 , H04B7/185 , H04Q7/34 , H04Q7/38
CPC分类号： H04B7/18541
摘要： The mobile communication system comprising a public network, a private system connected to the public network and a satellite system connected to the public network. The private system includes a radio base station which has a communication zone, a first mobile telephone which is able to communicate with the radio base station in the communication zone and is able to communicate with the satellite system, and a private branch exchange connected to both the public network and the radio base station which performs communication processes between the public network and the private system. The radio base station and the first mobile telephone are able to process a private protocol and a public protocol. The satellite system includes a satellite station which relays radio waves on a satellite line, and a satellite ground station which is able to communicate with the satellite station and is connected to the public network. When the first mobile telephone roams to the satellite system, the private branch exchange transfers information of the first mobile telephone for roaming to the satellite ground station via the public network before changing communication lines.
摘要翻译：移动通信系统包括公共网络，连接到公共网络的专用系统和连接到公共网络的卫星系统。私有系统包括具有通信区域的无线电基站，能够与通信区域中的无线电基站进行通信并能够与卫星系统通信的第一移动电话以及连接到两者的专用小交换机公共网络和执行公共网络和私人系统之间的通信处理的无线电基站。无线电基站和第一移动电话能够处理私人协议和公共协议。该卫星系统包括卫星电台，卫星电台在卫星线路上继续发送无线电波，卫星地面站能够与卫星站通信并连接到公共网络。当第一移动电话漫游到卫星系统时，专用小区交换机在改变通信线路之前经由公共网络将第一移动电话的信息传送到卫星地面站。

7. 发明授权

US5450623A CN ratio measuring apparatus 失效
标题翻译： CN比率测量仪
公开(公告)号：US5450623A
公开(公告)日：1995-09-12
申请号：US122281
申请日：1993-09-17
申请人： Itoshi Yokoyama , Masaaki Nagai , Kenichi Ishida , Kakuya Saito
发明人： Itoshi Yokoyama , Masaaki Nagai , Kenichi Ishida , Kakuya Saito
IPC分类号： G01R29/26 , H04B17/00
CPC分类号： H04B17/20
摘要： A measuring apparatus is provided which is capable of measuring CN ratio. The measuring apparatus has a measuring band specifying unit for specifying a band under measurement; a display for displaying the spectrum of levels measured in the specified band; first and second noise measuring frequency specifying units; a transmission channel selector; and a CN ratio calculating unit for estimating a noise level at a carrier of a selected transmission channel and for calculating the CN ratio using the estimated level.
摘要翻译：提供能够测量CN比的测量装置。测量装置具有用于指定测量带的测量带指定单元; 用于显示在指定频带中测量的频谱的显示; 第一和第二噪声测量频率指定单元; 传输信道选择器; CN比率计算单元，用于估计所选择的传输信道的载波处的噪声电平，并使用估计电平计算CN比。

8. 发明授权

US07146582B2 Logic circuit optimizing method, logic circuit optimizing device and logic circuit composing device 有权
标题翻译：逻辑电路优化方法，逻辑电路优化装置和逻辑电路组成装置
公开(公告)号：US07146582B2
公开(公告)日：2006-12-05
申请号：US10773276
申请日：2004-02-09
申请人： Tomoo Kimura , Kenichi Ishida , Tomoyuki Inomoto
发明人： Tomoo Kimura , Kenichi Ishida , Tomoyuki Inomoto
IPC分类号： G06F17/50
CPC分类号： G06F17/505
摘要： A dividing flip-flop FF2 is inserted in a cluster C of which the cluster length exceeds a predetermined cluster length. The flip-flop inserted cluster C is re-clustered, generating subdivided clusters C1 and C2. Therefore, the degree of freedom is increased in allocating clusters to a variable logic element such as an FPGA in a logical emulation device.
摘要翻译：分束触发器FF2被插入到簇长度超过预定簇长度的簇C中。触发器插入的簇C被重新聚集，产生细分簇C 1和C 2。因此，在将集群分配到诸如逻辑仿真装置中的FPGA的可变逻辑元件时，自由度增加。

9. 发明授权

US06858974B2 Spark plug for internal combustion engine 失效
标题翻译：内燃机火花塞
公开(公告)号：US06858974B2
公开(公告)日：2005-02-22
申请号：US10272996
申请日：2002-10-18
申请人： Gakuji Moriya , Kenichi Ishida , Kazuyuki Kubo , Toshihiro Ohkama
发明人： Gakuji Moriya , Kenichi Ishida , Kazuyuki Kubo , Toshihiro Ohkama
IPC分类号： G01M15/04 , F02P13/00 , F02P17/12 , H01T13/20 , H01T13/39 , H01T15/00
CPC分类号： H01T13/20 , H01T13/39
摘要： A spark plug for internal combustion engine, which produces a spark discharge that ignites air-fuel mixture in the combustion chamber and causes combustion such that an ionic current flow during combustion can be utilized for detecting misfire of the engine. The spark plug the core connected to an ignition coil, a center electrode made of at least one of iridium and an iridium alloy and connected to the core through a seat, and a ground electrode separated from the center electrode with a gap. A sum of surface areas of the seat and the center electrode is not less than a prescribed value, specifically, is not less than 11.0 mm2, and more specifically, is not less than 11.47 mm2. Even when the diameter of the center electrode is reduced in the interest of improving ignition performance, improved ignition performance and improved ionic current detection accuracy can be achieved simultaneously.
摘要翻译：一种用于内燃机的火花塞，其产生点燃燃烧室中的空气 - 燃料混合物并引起燃烧的火花放电，使得燃烧期间的离子电流流动可用于检测发动机的失火。火花塞芯与点火线圈连接，中心电极由铱合金和铱合金中的至少一种制成，并通过座与芯体连接，接地电极与中心电极间隔开。座椅和中心电极的表面积之和不小于规定值，特别是不小于11.0mm 2，更具体地，不小于11.47mm 2。即使为了提高点火性能而减小中心电极的直径，也可以同时实现提高点火性能和提高的离子电流检测精度。

10. 发明授权

US4510668A Machining center 失效
标题翻译：加工中心
公开(公告)号：US4510668A
公开(公告)日：1985-04-16
申请号：US374510
申请日：1982-05-03
申请人： Kenichi Ishida , Tetsuro Takahashi
发明人： Kenichi Ishida , Tetsuro Takahashi
IPC分类号： B23Q3/157 , B23B39/02 , B23P23/00 , B23Q1/00 , B23Q1/01 , B23Q7/00 , B23Q7/14 , B23Q11/00 , B23Q5/22
CPC分类号： B23Q11/0042 , B23Q1/01 , B23Q7/1431 , Y02P70/171 , Y10T29/5122 , Y10T409/308792 , Y10T409/309576 , Y10T74/1476 , Y10T82/25
摘要： A machining center of a horizontal type including a vertical base is disclosed. A pallet carrying a workpiece to be machined is mounted on a pallet slide with a pallet surface being vertical so that the pallet is movable along a first horizontal axis and rotatable about this first axis. The pallet slide is mounted on the vertical base so as to be movable vertically along a first vertical surface of this base, this surface being parallel to the first axis. A spindle supporting a tool for machining the workpiece is mounted in a spindle slide so that the spindle is rotatable about a second horizontal axis making a right angle with the first axis. The spindle slide is supported by the vertical base so as to be movable horizontally along a second vertical surface of the base, said second surface making a right angle with the first vertical surface of the base. Accordingly, a wide space is formed below the workpiece and tool supported by the pallet slide and spindle slide respectively.
摘要翻译：公开了一种包括垂直底座的卧式加工中心。携带要加工的工件的托盘安装在托盘滑动件上，托盘表面是垂直的，使得托盘可沿着第一水平轴线移动并且可围绕该第一轴线旋转。托盘滑动件安装在垂直底座上，以便沿着该基座的第一垂直表面垂直移动，该表面平行于第一轴线。支撑用于加工工件的工具的主轴安装在主轴滑块中，使得主轴可绕与第一轴线成直角的第二水平轴线旋转。主轴滑块由垂直底座支撑，以便沿着基座的第二垂直表面水平移动，所述第二表面与基座的第一垂直表面成直角。因此，分别在托盘滑块和主轴滑块支撑的工件和工具的下方形成宽的空间。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式