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    • 2. 发明授权
    • Memory circuit improved in electrical characteristics
    • 存储器电路改善了电气特性
    • US5742551A
    • 1998-04-21
    • US463851
    • 1995-06-05
    • Seigoh YukutakeYutaka KobayashiTakashi AkiokaMasahiro Iwamura
    • Seigoh YukutakeYutaka KobayashiTakashi AkiokaMasahiro Iwamura
    • H03F3/72H03K17/62G11C7/02
    • H03F3/72H03K17/6264H03F2203/7203
    • A constant current source is connected in series to a current source circuit including a MOS transistor which is used as a current source for a differential output amplifier circuit, an emitter follower circuit or a source follower circuit used with a semiconductor integrated circuit. In a multiplex circuit, an input signal is inputted to each of base terminals of a plurality of bipolar transistors. When one input signal is selected, the bipolar transistor corresponding to the selected input signal is made to be operable with an input signal from a signal input terminal by a control circuit. The bipolar transistors corresponding to the non-selection input signals are turned OFF irrespective of potential levels of the individual input signals by current drawing circuits. There is also disclosed a semiconductor memory circuit having a plurality of memory cells, a memory cell selection scheme and a sense amplifier for amplifying data outputted from the selected memory cell, in which a constant current circuit is provided in series connection to the sense amplifier to enhance the performance characteristics of the memory circuit. Also, a plural memory array scheme is disclosed which employs multiplexing techniques connected to presense amplifier circuits of the respective memory arrays.
    • 恒流源串联连接到电流源电路,该电流源电路包括用作差分输出放大器电路的电流源的MOS晶体管,射极跟随器电路或与半导体集成电路一起使用的源极跟随器电路。 在复用电路中,输入信号被输入到多个双极晶体管的每个基极端子。 当选择一个输入信号时,与所选择的输入信号相对应的双极晶体管可以通过控制电路与来自信号输入端的输入信号一起工作。 对应于非选择输入信号的双极晶体管截止,而与当前绘图电路的各个输入信号的电位电平无关。 还公开了具有多个存储单元的半导体存储器电路,存储单元选择方案和用于放大从所选择的存储单元输出的数据的读出放大器,其中恒定电流电路与读出放大器串联连接, 提高存储电路的性能特点。 此外,公开了一种多重存储器阵列方案,其采用连接到相应存储器阵列的预放大器电路的复用技术。
    • 4. 发明授权
    • Multiplex circuit arrangement for use with a semiconductor integrated
circuit
    • 用于半导体集成电路的多路电路装置
    • US5523713A
    • 1996-06-04
    • US464344
    • 1995-06-05
    • Seigoh YukutakeYutaka KobayashiTakashi AkiokaMasahiro Iwamura
    • Seigoh YukutakeYutaka KobayashiTakashi AkiokaMasahiro Iwamura
    • H03F3/72H03K17/62
    • H03F3/72H03K17/6264H03F2203/7203
    • A multiplex circuit is disclosed in which a plurality of bipolar transistors are combined and in which the respective base terminals thereof are used as inputs, thereby to construct an emitter follower type multiplex circuit. In such an emitter follower type multiplex circuit, the multiplexing function of non-selection/selection is effected by controlling the base potential of the respective bipolar transistors by providing a MOS transistor between each base and a high potential of the power source through a resistor and a current drawing circuit. In accordance with such a scheme, when a selection of one input signal is made, the bipolar transistor corresponding thereto is permitted to turn ON on the basis of an input signal supplied to the base terminal thereof. The bipolar transistors corresponding to the non-selection input signals are maintained OFF, through activating the current drawing circuits associated therewith, irrespective of the potential levels of the incoming input signals supplied to the base terminals thereof. In the emitter follower type multiplex circuit, a constant current source is also provided between the commonly connected emitters of the bipolar transistors and the power source of low potential. The multiplex arrangement effected can be of the collector dot type multiplex circuit. Such multiplex circuits are used with a semiconductor integrated circuit such as a memory circuit.
    • 公开了一种多路复用电路,其中组合了多个双极晶体管,并且将其各自的基极端子用作输入,从而构成射极跟随器型多路复用电路。 在这种射极跟踪器型多路复用电路中,通过在每个基极之间设置MOS晶体管和通过电阻器的电源的高电位之间来控制各个双极型晶体管的基极电位来实现非选择/选择的多路复用功能, 电流绘制电路。 根据这种方案,当进行一个输入信号的选择时,与其相对应的双极晶体管被允许基于提供给其基极的输入信号而导通。 与非选择输入信号相对应的双极晶体管通过激活与其相关的电流绘制电路而保持关闭,而不管提供给其基极的输入信号的电位电平如何。 在射极跟踪器型多路复用电路中,在双极晶体管的共同连接的发射极和低电位的电源之间也设置恒流源。 所实现的复用布置可以是集电极点型多路复用电路。 这种多路复用电路与诸如存储电路的半导体集成电路一起使用。
    • 8. 发明授权
    • High-speed semiconductor memory device and data processing system using
the same
    • 高速半导体存储器件和数据处理系统使用相同
    • US5654931A
    • 1997-08-05
    • US213531
    • 1994-03-16
    • Akihiro TambaMasahiro IwamuraYutaka KobayashiKinya MitsumotoTatsumi YamauchiShuko YamauchiTakashi Akioka
    • Akihiro TambaMasahiro IwamuraYutaka KobayashiKinya MitsumotoTatsumi YamauchiShuko YamauchiTakashi Akioka
    • G11C7/22G11C13/00
    • G11C7/22
    • A semiconductor integrated circuit device is divided into a plurality of blocks, which are individually equipped with signal generate units such that the signal generate units are distributed in the semiconductor integrated circuit device. The semiconductor integrated circuit device is preferably constructed to generate the pulse signal by the pulse generate units which are provided for the individual blocks, after all initial logic operations on the data and control signals have been taken. Thanks to this construction, an SRAM, for example, can have its write recovery time minimized to 0 so that it can achieve high-speed operations. Moreover, since predecoders are provided for the individual blocks, the wiring line number and area in the chip can be reduced to improve the degree of integration of the semiconductor integrated circuit device. Still moreover, signal delay and skew can be reduced in the chip so that high-speed can be achieved. Another feature is that either the input/output pads of the data into or out of the semiconductor integrated circuit device or their accompanying circuit units are distributed in the semiconductor integrated circuit device. The individual features described above can be used solely or in combination, if necessary, to achieve the above-specified objects.
    • 半导体集成电路器件被分成多个块,它们分别配备有信号生成单元,使得信号生成单元分布在半导体集成电路器件中。 优选地,半导体集成电路器件被构造为在对数据和控制信号进行了所有初始逻辑运算之后,通过针对各个块提供的脉冲产生单元产生脉冲信号。 由于这种结构,例如,SRAM可以将其写恢复时间最小化为0,从而可以实现高速操作。 此外,由于为每个块提供预编码器,所以可以减少芯片中的布线数量和面积,以提高半导体集成电路器件的集成度。 此外,芯片中的信号延迟和偏斜可以降低,从而可以实现高速度。 另一个特征是将半导体集成电路器件的数据的输入/输出焊盘或其相应的电路单元分布在半导体集成电路器件中。 如果需要,可以单独地或组合地使用上述各个特征来实现上述目的。