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    • 1. 发明授权
    • Differential type MOS transmission circuit
    • 差分型MOS传输电路
    • US5495186A
    • 1996-02-27
    • US275008
    • 1994-07-13
    • Nobuaki KanazawaMasao MizukamiKunihiro Ito
    • Nobuaki KanazawaMasao MizukamiKunihiro Ito
    • G06F3/00H03K3/3565H03K17/04H03K17/687H03K19/017H03K19/0175H03K19/0948H03K3/2897
    • H03K3/3565
    • A differential type MOS transmission circuit includes a signal driving circuit and a signal receiving circuit to realize high speed transmission for a short distance transmission between different LSIs, etc. A pair of transmission lines between the signal driving circuit and the signal receiving circuit are driven by a pair of drivers in the signal driving circuit so as to take either one of three states, i.e. one state where both of the lines are in a precharged states and two states where either one of the lines is in a discharged state. A signal driving circuit includes signal generating circuits generating variations in control signals varying pulse-like in response to rise and fall of an input signal to thereby obtain the discharge state. The signal receiving circuit generates an output signal depending on the state of the transmission lines and is constructed of a Schmitt trigger circuit with a hysteresis characteristic, for which an input threshold voltage for output logical values has a level smaller than a potential difference between the precharged level and the discharged level.
    • 差分型MOS发送电路包括信号驱动电路和信号接收电路,以实现不同LSI之间的短距离传输的高速传输等。信号驱动电路和信号接收电路之间的一对传输线由 信号驱动电路中的一对驱动器,以便采取三种状态中的任何一种,即两条线都处于预充电状态的一种状态和两条线中的任一条处于放电状态的两种状态。 信号驱动电路包括信号发生电路,其产生响应于输入信号的上升和下降而脉冲变化的控制信号的变化,从而获得放电状态。 信号接收电路根据传输线的状态产生输出信号,并且由具有滞后特性的施密特触发电路构成,输出逻辑值的输入阈值电压的电平小于预充电的电位差 水平和排放水平。
    • 3. 发明授权
    • A ternary signal transmission circuit and method
    • 一种三态信号传输电路及方法
    • US5444740A
    • 1995-08-22
    • US116691
    • 1993-09-03
    • Masao MizukamiNobuaki Kanazawa
    • Masao MizukamiNobuaki Kanazawa
    • H04L25/49H03K19/0175H04L25/02H04L25/34H04B3/00
    • H04L25/028H04L25/0278H04L25/0292H04L25/0272
    • A signal transmission system provides stable, fast, long-range transmission. During transmission, a short-width pulse is synchronized with rising and falling edges of a transmission pulse signal. A ternary output signal in a differential shape is produced on the basis of the pulse, and an output signal is transmitted through series resistors via a pair of transmitting wirings. During reception, a reception terminal is provided with terminal resistors corresponding to a characteristic impedance of the transmitting wirings. A signal having passed through one of the transmitting wirings is detected with reference to a signal having passed through the other transmitting wiring. A signal having passed through the other transmitting wiring is detected with reference to the signal having passed through the one transmitting wiring. Additionally, the original pulse signal is restored and reproduced on the basis of the detected signals. The signals to be transmitted through the paired transmitting wirings are bipolar pulses or differential pulses which are generated only at the rising and falling times of the pulse signal to be transmitted. The pulses are given a complementary transmission waveform having a small amplitude divided by the series resistors at the transmission side and the terminal resistors at the reception side. In consideration of the above, and since the signals containing no-DC component can be transmitted, the charging and discharging phenomena of the inter-line capacities and the DC shift can be eliminated to accomplish long-range transmissions at a high speed.
    • 信号传输系统提供稳定,快速,远程传输。 在传输期间,短脉冲与传输脉冲信号的上升沿和下降沿同步。 基于脉冲产生差分形状的三进制输出信号,并且通过串联电阻经由一对发送配线传输输出信号。 在接收期间,接收终端设置有对应于发送配线的特性阻抗的终端电阻。 参照已经通过其他发送配线的信号来检测已经通过发送配线之一的信号。 参照已经通过一根发射线的信号来检测已经通过其他发射线的信号。 另外,基于检测到的信号恢复和再现原始脉冲信号。 通过配对的发送配线发送的信号是仅在要发送的脉冲信号的上升和下降时间产生的双极脉冲或差分脉冲。 这些脉冲具有由传输侧的串联电阻和接收端的端子电阻分压的小幅度的互补传输波形。 考虑到上述情况,并且由于可以发送包含非直流分量的信号,所以可以消除线间容量和直流偏移的充放电现象,以高速实现远距离传输。
    • 4. 发明授权
    • Semiconductor storage device
    • 半导体存储设备
    • US5065363A
    • 1991-11-12
    • US637809
    • 1991-01-07
    • Yoichi SatoMasao Mizukami
    • Yoichi SatoMasao Mizukami
    • G11C11/412G11C11/41G11C11/413G11C11/419H01L21/8244H01L27/11
    • G11C11/41G11C11/413
    • Each memory cell of the memory array has a latch circuit, such as a pair of cross-connected CMOS inverters, for storing information, a first switch MOSFET whose gate is connected with a word line, and a second switch MOSFET which is connected in series with the first switch MOSFET and the gate of which is connected with the output terminal of the latch circuit. The first and second switch MOSFETs are coupled between the data line and a terminal supplied with a first power source voltage level, such as reference ground potential. Such memory cells are disposed at intersections of a plurality of data lines and a plurality of word lines. One of the plurality of data lines is connected with a common data line through a column switch which is alternatively brought into an ON state. Prior to a reading operation, the data lines are prechanged to the first power-source voltage level, or ground potential, and the common data line is precharged to a second power-source voltage level, such as the supply voltage of the memory. The memory array is implemented in a semiconductor storage device, such as a static RAM, which is characterized as operating either as a one-port or two-port system and wherein it, furthermore, employs a write amplifier circuit arrangement and a sense amplifier arrangement, such as of the single-ended differential type, wherein the write and sense amplifier arrangements can be disposed either on separate common data lines or on a single common data line.
    • 存储器阵列的每个存储单元具有用于存储信息的锁存电路,例如一对交叉连接的CMOS反相器,栅极与字线连接的第一开关MOSFET,以及串联连接的第二开关MOSFET 其中第一开关MOSFET和其栅极与锁存电路的输出端相连。 第一和第二开关MOSFET耦合在数据线和提供有第一电源电压电平(例如参考地电位)的端子之间。 这样的存储单元设置在多条数据线和多条字线的交点处。 多个数据线中的一个通过列开关与公共数据线连接,该列开关被替代地进入ON状态。 在读取操作之前,数据线被改变为第一电源电压电平或地电位,并且公共数据线被预充电到诸如存储器的电源电压的第二电源电压电平。 存储器阵列实现在诸如静态RAM的半导体存储设备中,其被表征为作为单端口或双端口系统操作,并且其中其还采用写放大器电路布置和读出放大器布置 ,例如单端差分型,其中写入和读出放大器布置可以设置在单独的公共数据线上或在单个公共数据线上。
    • 5. 发明授权
    • High speed sensor system using a level shift circuit
    • 高速传感器系统采用电平移位电路
    • US5053652A
    • 1991-10-01
    • US637591
    • 1991-01-04
    • Yoichi SatoMasao MizukamiToshiyuki Ookuma
    • Yoichi SatoMasao MizukamiToshiyuki Ookuma
    • G11C7/06G11C8/16
    • G11C7/062G11C8/16
    • A semiconductor memory device has a sense amplifier which is constructed with a level shift circuit having an input which senses the change in a data line from an initial precharged level to a level near the vicinity of the supply voltage level which corresponds to data reading amounts from a memory cell during the reading mode of operation of the memory. The level shift circuit, in response to a memory cell reading signals, provides a level shifted outpout to the input terminal of a differential sense amplifier circuit, the level shifted output being in the vicinity of the operating point of the differential sense amplifier circuit. The level shift circuit includes a current amplifier having an output terminal that is formed with a series connecting node of a current amplifying transistor and a current source.
    • 半导体存储器件具有读出放大器,该读出放大器由具有输入的电平移位电路构成,该输入检测从初始预充电电平到数据线附近的电平变化附近的数据线对应于来自 在存储器的操作的读取模式期间的存储器单元。 电平移位电路响应于存储单元读取信号,向差分读出放大器电路的输入端提供电平偏移输出,电平移位输出位于差分读出放大器电路的工作点附近。 电平移位电路包括具有由电流放大晶体管和电流源的串联连接节点形成的输出端子的电流放大器。
    • 7. 发明授权
    • Signal receiving circuit and digital signal processing system
    • 信号接收电路和数字信号处理系统
    • US5880601A
    • 1999-03-09
    • US750581
    • 1997-02-27
    • Nobuaki KanazawaMasao MizukamiKunihiro Ito
    • Nobuaki KanazawaMasao MizukamiKunihiro Ito
    • H03K19/0185H04L25/02H03K19/094
    • H04L25/0292H03K19/018521H03K19/018528
    • A signal receiving circuit comprising a first P-channel MOSFET amplifier and a first N-channel MOSFET amplifier having gates supplied with positive signals from a pair of signal transmission lines; and a second P-channel MOSFET amplifier and a second N-channel MOSFET amplifier having gates supplied with negative signals from said pair of signal transmission lines; wherein a first output signal is formed by so adjusting the gains of the first P-channel MOSFET amplifier and of the second N-channel MOSFET amplifier that the resultant signals have an intermediate amplitude between the operation voltages, and a second output signal is formed by so adjusting the gains of the second P-channel MOSFET amplifier and of the first N-channel MOSFET amplifier that the resultant signals have an intermediate amplitude between the operation voltages. This makes it possible to receive various small signals lying over a wide range even by using a sense amplifier which has only a fixed operation range in the signal receiving circuit as well as to constitute a novel and optimum system by combining semiconductor integrated circuit devices having different low-amplitude interfaces.
    • PCT No.PCT / JP95 / 01001 Sec。 371日期1997年2月27日 102(e)日期1997年2月27日PCT提交1995年5月25日PCT公布。 出版物WO95 / 34954 日期1995年12月21日一种信号接收电路,包括第一P沟道MOSFET放大器和第一N沟道MOSFET放大器,其具有来自一对信号传输线的正信号的栅极; 以及第二P沟道MOSFET放大器和第二N沟道MOSFET放大器,其具有来自所述一对信号传输线的负信号的栅极; 其中通过如此调节第一P沟道MOSFET放大器和第二N沟道MOSFET放大器的增益来形成第一输出信号,所得到的信号在工作电压之间具有中间幅度,而第二输出信号由 因此调整第二P沟道MOSFET放大器和第一N沟道MOSFET放大器的增益,所得到的信号在工作电压之间具有中间幅度。 这使得即使通过使用在信号接收电路中仅具有固定的操作范围的读出放大器也可以接收宽范围的各种小信号,并且通过组合具有不同的半导体集成电路器件来构成新的和最佳的系统 低振幅接口。
    • 10. 发明授权
    • Moving vane type compressor
    • 活动叶片式压缩机
    • US4711620A
    • 1987-12-08
    • US738266
    • 1985-05-28
    • Yukio TakahashiIsao HayaseKeijirou AmanoMasao MizukamiMasaaki Ishiguri
    • Yukio TakahashiIsao HayaseKeijirou AmanoMasao MizukamiMasaaki Ishiguri
    • F04C18/344F01C21/10F04C27/02F04C29/02
    • F04C27/02F01C21/106F04C2230/22
    • A moving vane type compressor has a cylinder which is made of a sintered material having a density of 6.6 to 7.6 and a composition consisting essentially of 0.6 to 0.8% of carbon, 1 to 2% of copper and the balance substantially iron. The cylinder is encased by a hermetic casing therebetween a high pressure chamber into which a refrigerant compressed by the compressor is discharged. Lubricating oil separated from the discharged refrigerant within the high pressure chamber and the lubricating oil suspended in the form of a mist by the refrigerant attach to the outer peripheral surface of the wall of the cylinder made of the sintered material. The oil attaching to the outer peripheral surface of the cylinder is forced by the refrigerant pressure acting thereon into the pores of the sintered material such as to block these pores, thus preventing the compressed gas in the cylinder from leaking outside through the pores.
    • 移动叶片式压缩机具有由密度为6.6〜7.6的烧结材料制成的圆筒,其组成基本上由碳的0.6〜0.8%,铜的1〜2%,余量基本上为铁构成。 气缸由密封的壳体封装在其间排出由压缩机压缩的制冷剂的高压室。 从高压室内排出的制冷剂分离出的润滑油和由制冷剂以雾状形式悬浮的润滑油附着在由烧结体制成的圆筒的壁的外周面上。 附着在气缸的外周面的油被作用在其上的制冷剂压力压在烧结材料的孔中,以阻止这些孔,从而防止气缸中的压缩气体通过孔泄漏到外部。