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1. 发明授权

US5260836A Apparatus for reproducing digital and analog audio signals 失效
标题翻译：用于再现数字和模拟音频信号的装置
公开(公告)号：US5260836A
公开(公告)日：1993-11-09
申请号：US618906
申请日：1990-11-28
申请人： Horoaki Yada , Yutaka Soda , Keisuke Fujiwara , Satoru Seko , Munekatsu Fukuyama , Tetsuo Sekiya
发明人： Horoaki Yada , Yutaka Soda , Keisuke Fujiwara , Satoru Seko , Munekatsu Fukuyama , Tetsuo Sekiya
IPC分类号： G11B5/008 , G11B5/02 , G11B20/00 , G11B5/09 , G11B15/12
CPC分类号： G11B5/00878 , G11B20/00 , G11B5/02
摘要： Apparatus is provided for reproducing either M channels of digital audio signals recorded in longitudinal tracks on a record medium or an analog audio signal recorded in one or two stereo tracks. M heads are used to reproduce the M channels of digital audio signals and N of those heads (N.ltoreq.M) are used to reproduce the analog audio signal. The reproduced digital or analog audio signals are multiplexed and digitized. When digital audio signals are reproduced, the digitized multiplexed signals are digitally processed and then converted to analog form. When analog audio signals are reproduced, the digitized multiplexed signals are summed such that signals reproduced by the N heads are combined to form a digital representation of the recorded analog audio signal. The summed signals then are converted to analog form to recover the original analog audio signal.

2. 发明授权

US5313342A Analog/digital compatible reproducing system 失效
标题翻译：模拟/数字兼容再现系统
公开(公告)号：US5313342A
公开(公告)日：1994-05-17
申请号：US979483
申请日：1992-11-20
申请人： Yutaka Soda , Keisuke Fujiwara , Hiroaki Yada , Satoru Seko , Munekatsu Fukuyama , Tetsuo Sekiya
发明人： Yutaka Soda , Keisuke Fujiwara , Hiroaki Yada , Satoru Seko , Munekatsu Fukuyama , Tetsuo Sekiya
IPC分类号： G11B5/008 , G11B5/48 , G11B15/12 , G11B15/32 , G11B23/087 , G11B23/28 , G11B5/265
CPC分类号： G11B23/087 , G11B15/125 , G11B15/32 , G11B23/28 , G11B5/00878 , G11B5/4893
摘要： An analog/digital compatible reproducing system is disclosed, particularly a stationary head system using a digital recorded magnetic tape having a plurality of n, digital data recorded tracks. An analog recorded magnetic tape has a first analog recorded track and a second analog recorded track between which a guardband of a certain width is provided. Signals are reproduced from the digital recorded magnetic tape by driving n reproducing magnetic head elements respectively corresponding to the n digital data recorded tracks. The analog recorded magnetic tape is reproduced by driving a plurality of m reproducing magnetic head elements of said n reproducing, magnetic head elements, corresponding to the first and second recorded tracks so that common outputs can be produced from the m reproducing magnetic head elements. There is also disclosed a tape cassette used in such system.
摘要翻译：公开了一种模拟/数字兼容再现系统，特别是使用具有多个n个数字数据记录磁道的数字记录磁带的固定磁头系统。模拟记录磁带具有第一模拟记录磁道和第二模拟记录磁道，在其之间提供一定宽度的保护带。通过驱动分别对应于n个数字数据记录轨道的n个再现磁头元件，从数字记录磁带再现信号。通过驱动对应于第一和第二记录磁道的所述n个再现磁头元件的多个m个再现磁头元件来再现模拟记录磁带，使得可以从m个再现磁头元件产生公共输出。还公开了在这种系统中使用的磁带盒。

3. 发明授权

US4875128A Disc cartridge 失效
标题翻译：光盘盒
公开(公告)号：US4875128A
公开(公告)日：1989-10-17
申请号：US217440
申请日：1988-07-11
申请人： Vurnen Leonard , Arthur K. Kato , Kiyoshi Ohmori , Keisuke Fujiwara , Yutaka Soda
发明人： Vurnen Leonard , Arthur K. Kato , Kiyoshi Ohmori , Keisuke Fujiwara , Yutaka Soda
IPC分类号： G11B23/00 , G11B23/03
CPC分类号： G11B23/0306 , G11B23/0035
摘要： A disc cartridge including a shell, a disc within the shell, a disc restraint for selectively restraining the drive may be inserted to move the restraint is provided with a cover attached to the restraint for engaging the release pin, moving the restraint in response to movement of the release pin and closing the opening to prevent the entrance of contaminants into the shell.
摘要翻译：包括外壳，外壳内的盘，用于选择性地限制驱动的盘式限制器的盘盒可以被插入以移动约束装置，其具有附接到约束件的盖以接合释放销，以响应于移动来移动约束的释放销并且关闭开口以防止污染物进入壳体。

4. 发明授权

US06397814B1 Apparatus and method for controlling intake air quantity for internal combustion engine 有权
标题翻译：用于控制内燃机进气量的装置和方法
公开(公告)号：US06397814B1
公开(公告)日：2002-06-04
申请号：US09299098
申请日：1999-04-26
申请人： Hatsuo Nagaishi , Keisuke Fujiwara
发明人： Hatsuo Nagaishi , Keisuke Fujiwara
IPC分类号： F02D1110
CPC分类号： F02D13/0234 , F01L25/08 , F02D11/105 , F02D13/0207 , F02D13/0253 , F02D41/0002 , F02D2041/001 , F02D2041/002 , Y02T10/18 , Y02T10/42
摘要： In a control apparatus and method for controlling an intake air quantity for an internal combustion engine, a throttle position of a throttle valve installed in an intake system of the engine is controlled in such a manner that an intake pressure around the throttle valve (pressure difference between upstream and downstream sides of the throttle valve or a ratio of a pressure between the upstream and downstream sides of the throttle valve) is maintained constant at an approximately predetermined negative pressure under a predetermined (low) engine load condition and a valve closure timing of at least one intake valve installed to open and close each corresponding combustion chamber of the engine is simultaneously controlled to regulate an intake air quantity supplied to the engine under the predetermined (low) engine load condition.
摘要翻译：在用于控制内燃机的进气量的控制装置和方法中，安装在发动机的进气系统中的节流阀的节气门位置被控制为使得节气门周围的进气压力（压力差在节气门的上游侧和下游侧之间或节流阀的上游侧和下游侧之间的压力比）在预定的（低）发动机负载条件下保持恒定在大致预定的负压，并且阀闭合正时同时控制安装以打开和关闭发动机的每个对应的燃烧室的至少一个进气门，以调节在预定（低）发动机负载条件下供应到发动机的进气量。

5. 发明授权

US5946253A Semiconductor memory device 失效
标题翻译：半导体存储器件
公开(公告)号：US5946253A
公开(公告)日：1999-08-31
申请号：US891196
申请日：1997-07-10
申请人： Keisuke Fujiwara
发明人： Keisuke Fujiwara
IPC分类号： G11C11/419 , G11C7/06 , G11C7/10 , G11C7/22 , G11C11/401 , G11C11/409 , G11C7/02
CPC分类号： G11C7/1069 , G11C7/065 , G11C7/1006 , G11C7/1051 , G11C7/1078 , G11C7/22
摘要： In a semiconductor memory device in which cell arrays are connected to a shared bus line through sense amplifiers at the time of reading-out and writing operations, a sub-amplifier is provided between two bus lines, the sub-amplifier amplifying a potential difference of reading-out data fetched on the bus lines from the selected sense amplifier and a potential difference of writing data input to the bus lines from the outside. The sub-amplifier has an ability to amplify the potential differences of both of the reading-out data and writing data on the bus lines without separating the bus lines, whereby the amount of delay due to wiring can be reduced.
摘要翻译：在其中单元阵列在读出和写入操作时通过读出放大器连接到共享总线的半导体存储器件中，在两个总线之间提供一个子放大器，该子放大器放大电位差从所选择的读出放大器读出在总线上读出的数据，以及从外部向总线输入数据的电位差。子放大器具有在不分离总线的情况下放大读出数据和写入数据的电位差的能力，从而可以减少由于布线引起的延迟量。

6. 发明授权

US06577546B2 Semiconductor integrated circuit and operating method 有权
公开(公告)号：US06577546B2
公开(公告)日：2003-06-10
申请号：US09939869
申请日：2001-08-27
申请人： Keisuke Fujiwara , Sachiko Edo
发明人： Keisuke Fujiwara , Sachiko Edo
IPC分类号： G11C700
CPC分类号： G11C29/12 , G11C29/14 , G11C29/46 , G11C2207/104
摘要： A semiconductor integrated circuit (50) having normal operation mode and a burn-in mode is provided. The semiconductor integrated circuit (50) can include a memory (14) and a logic circuit (9). The memory (14) may operate in response to input signals (input ) when in the burn-in mode while the logic circuit (9) may operate in response to control signals generated in response to one of the input signals (input ) having a predetermined value when the semiconductor integrated circuit (50) operates in the burn-in mode. The memory (14) may operate in response to memory control signals generated by the logic circuit (9) when the semiconductor integrated circuit (50) operates in the normal operation mode. The logic circuit (9) may generate the memory control signals in response to values provided by input signals (input ). In this way, the logic circuit (9) and memory (14) may be tested in the burn-in mode without providing additional inputs.

7. 发明授权

US06401684B2 System for controlling engine equipped with electromagnetically operated engine valve 失效
标题翻译：用于控制装有电磁发动机气门的发动机的系统
公开(公告)号：US06401684B2
公开(公告)日：2002-06-11
申请号：US09736576
申请日：2000-12-15
申请人： Toshio Hori , Hidefumi Iwaki , Shigeyuki Nonomura , Keisuke Fujiwara , Hirofumi Yano
发明人： Toshio Hori , Hidefumi Iwaki , Shigeyuki Nonomura , Keisuke Fujiwara , Hirofumi Yano
IPC分类号： F02B7700
CPC分类号： F01L9/04
摘要： An engine control system for an engine system with electromagnetically operated intake and exhaust valves has a control unit. The control unit is arranged to decide whether each of the intake and exhaust valves is put in an abnormal condition, to close a normal valve of the intake and exhaust valves when one of the intake and exhaust valves is put in the abnormal condition, and to stop the current-flowing to a primary ignition coil when one of the intake and exhaust valves is put in the abnormal condition and when the primary ignition coil is not starting the current-flowing.
摘要翻译：用于具有电磁操作的进气和排气阀的发动机系统的发动机控制系统具有控制单元。控制单元被配置为判定进气门和排气门中的每一个是否处于异常状态，当进气门和排气门中的一个处于异常状态时关闭进排气门的正常阀，并且当其中一个进气门和排气门处于异常状态，并且当初级点火线圈没有启动电流时，停止电流流向初级点火线圈。

8. 发明授权

US06619245B1 Failsafe control system and method for an electromagnetically driven valve 失效
标题翻译：电磁阀故障安全控制系统及方法
公开(公告)号：US06619245B1
公开(公告)日：2003-09-16
申请号：US09831276
申请日：2001-05-09
申请人： Keisuke Fujiwara , Hatsuo Nagaishi
发明人： Keisuke Fujiwara , Hatsuo Nagaishi
IPC分类号： F01L904
CPC分类号： F02D13/0203 , F01L9/04 , F02D13/0253 , F02D41/20 , F02D41/221 , F02D2041/001 , F02D2041/2048 , F02D2041/2055 , F02D2041/2058 , F02D2041/2079 , F02D2200/063 , Y02T10/18 , Y02T10/40
摘要： A failsafe control system for a valve electromagnetically driven for opening and closing an intake port or exhaust port of an internal combustion engine is provided. The valve is of the type which is held in a neural position, i.e., in a partly open position when an electromagnetic actuator is not energized. When the valve fails in opening, the supply current is increased than that at normal times to drive the valve to close, whereby to prevent misfire, backfire and a bad influence to intake conditions of other cylinders and thereby attain an elongated service life of engine parts. A failsafe control method is also provided.
摘要翻译：提供一种用于电磁驱动用于打开和关闭内燃机的进气口或排气口的阀的故障安全控制系统。阀是保持在神经位置的类型，即当电磁致动器未通电时处于部分打开位置。当阀门打开不正常时，供电电流比正常时间要大，以驱动阀门关闭，从而防止失火，回火和对其他气缸进气条件的不良影响，从而达到延长发动机零件使用寿命。还提供了故障安全控制方法。

9. 发明授权

US06208583B1 Synchronous semiconductor memory having an improved reading margin and an improved timing control in a test mode 有权
标题翻译：同步半导体存储器具有改进的读取余量和改进的测试模式中的定时控制
公开(公告)号：US06208583B1
公开(公告)日：2001-03-27
申请号：US09430298
申请日：1999-10-29
申请人： Keisuke Fujiwara
发明人： Keisuke Fujiwara
IPC分类号： G11C800
CPC分类号： G11C7/1069 , G11C7/06 , G11C7/1051 , G11C7/1072 , G11C2207/108
摘要： A synchronous semiconductor memory comprises a memory controller receiving a pre-CAS signal and a test-CAS signal for outputting the test-CAS signal as the CAS signal when a mode discrimination signal is active to indicate a test mode, and the pre-CAS signal as the CAS signal when the mode discrimination signal is inactive. A data amplifier controller receives the CAS signal and a clock signal and generates a data amplifier enable signal in time with the clock signal when the mode discrimination signal is inactive. This data amplifier control generates the data amplifier enable signal by delaying the CAS signal when the mode discrimination signal is inactive. In response to a column selection signal, data stored in the memory cell array is outputted to associated data amplifiers. When the associated data amplifiers are enabled by the data amplifier enable signal, the data outputted from the memory cell array is amplified and outputted by the associated data amplifiers.
摘要翻译：同步半导体存储器包括存储器控制器，当模式识别信号有效以指示测试模式时，接收预先CAS信号和测试CAS信号，用于输出测试CAS信号作为CAS信号，并且前置CAS信号作为模式识别信号无效时的CAS信号。数据放大器控制器接收CAS信号和时钟信号，并且当模式鉴别信号无效时，随时钟信号及时产生数据放大器使能信号。当模式识别信号无效时，该数据放大器控制通过延迟CAS信号来产生数据放大器使能信号。响应于列选择信号，存储在存储单元阵列中的数据被输出到相关联的数据放大器。当相关的数据放大器由数据放大器使能信号使能时，从存储单元阵列输出的数据被相关的数据放大器放大并输出。

10. 发明授权

US4847713A Disc drive arrangement 失效
标题翻译：磁盘驱动装置
公开(公告)号：US4847713A
公开(公告)日：1989-07-11
申请号：US162106
申请日：1988-02-29
申请人： Keisuke Fujiwara
发明人： Keisuke Fujiwara
IPC分类号： G11B17/04 , G11B17/03 , G11B17/043 , G11B19/06
CPC分类号： G11B17/03 , G11B19/06
摘要： A disc drive arrangement of simplified construction for a disc cartridge with a magnetic disc retained therein by an urging member, in which after the disc cartridge with the magnetic disc is loaded on the disc drive arrangement, the up and down movement of the cartridge to the disc drive section, head's contacting with and coming apart from the magnetic disc, and the releasing operation of the urging of the urging member against the disc are carried out at a predetermined timing successively, thus the disc cartridge with the magnetic disc being positively loaded and driven by a simplified arrangement.

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