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    • 84. 发明授权
    • Apparatus and method for programmably controlling the polarity of an I/O
signal of a magnetic disk drive
    • 用于可编程地控制磁盘驱动器的I / O信号的极性的装置和方法
    • US5043606A
    • 1991-08-27
    • US502568
    • 1990-03-30
    • David M. Lewis
    • David M. Lewis
    • G06F13/40G11B19/00H03K5/02H03K19/173
    • H03K19/1736G06F13/4072G11B19/00H03K5/026
    • A programmable register stores a control bit for settting the logic polarity of an I/O signal at an I/O terminal of an integrated circuit. The I/O polarity control signal is combined in an exclusive-OR logic circuit with the I/O signal to provide a given logic polarity for the I/O signal. For a bi-directional I/O terminal, two exclusive-OR gates are used, one for controlling polarity of output signals from the integrated circuit to the I/O terminal and the other for controlling the polarity of input signals to the integrated circuits which are received at the I/O terminal. The control of the I/O signal polarity is particularly useful for a disk-drive controller which interfaces with different magnetic disk drive units, having different I/O signal polarity requirements.
    • 可编程寄存器存储用于设置集成电路的I / O端子处的I / O信号的逻辑极性的控制位。 I / O极性控制信号在异或逻辑电路中与I / O信号组合,为I / O信号提供给定的逻辑极性。 对于双向I / O端子,使用两个异或门,一个用于控制从集成电路到I / O端子的输出信号的极性,另一个用于控制到集成电路的输入信号的极性, 在I / O终端接收。 I / O信号极性的控制对于具有不同I / O信号极性要求的不同磁盘驱动单元的磁盘驱动器控制器特别有用。
    • 85. 发明授权
    • High speed logic and memory family using ring segment buffer
    • 高速逻辑和存储器系列使用环形缓冲区
    • US5030853A
    • 1991-07-09
    • US497103
    • 1990-03-21
    • Albert W. Vinal
    • Albert W. Vinal
    • H01L21/8249H01L27/06H01L27/07H01L27/10H01L27/118H03K3/03H03K3/356H03K5/02H03K5/13H03K17/567H03K19/017H03K19/08H03K19/0944H03K19/0948
    • H03K19/01707H03K17/567H03K19/09448H03K19/0948H03K3/03H03K3/356156H01L27/0716H01L27/11898
    • A logic and memory family using CMOS technology operates at high speeds using a Ring Segment Buffer to couple logic gates to one another in an integrated circuit chip, and to couple memory cells to other circuits to provide shift registers, triggers, clock pulse generators and other memory related circuits. The Ring Segment Buffer comprises one or more serially connected complementary field effect transistor (FET) inverter stages, with the output of a preceding stage being connected to the input of a succeeding stage. The N-channel FET in each inverter stage has a channel width which is less than a predetermined factor (K) times the width of the N-channel of the immediately preceding stage. By maintaining the K channel width relationship, the Ring Segment Buffer can drive large capacitive loads at high speed. The Ring Segment Buffer may also provide a predetermined delay which is a function of channel length and the number of stages. For large capacitive loads, the last stage of the Ring Segment Buffer may be replaced by a bipolar transistor-FET driver in which minority carrier lifetime controlled bipolar transistors are used.The Buffer Cell Logic and Delay Storage technology of the present invention may operate at speeds of 300 megahertz or more using conventional semiconductor fabrication processes in which conventional CMOS logic and memory technology operates at 70 megahertz or less. A fourfold speed improvement is thereby obtained.
    • 使用CMOS技术的逻辑和存储器系列使用环形段缓冲器以高速度运行,以在集成电路芯片中将逻辑门耦合到彼此,并将存储器单元耦合到其他电路以提供移位寄存器,触发器,时钟脉冲发生器等 存储器相关电路。 环形段缓冲器包括一个或多个串联的互补场效应晶体管(FET)反相器级,前级的输出连接到后级的输入端。 每个逆变器级的N沟道FET的通道宽度小于前一级的N沟道的宽度的预定因子(K)。 通过保持K通道宽度关系,环形段缓冲器可以高速驱动大容量负载。 环段缓冲器还可以提供预定的延迟,其是信道长度和级数的函数。 对于大容性负载,环形段缓冲器的最后一级可以由其中使用少数载流子寿命受控双极晶体管的双极型晶体管FET驱动器代替。 本发明的缓冲器单元逻辑和延迟存储技术可以使用传统的CMOS逻辑和存储器技术在70兆赫或更小的工作条件下使用的常规半导体制造工艺以300兆赫或更高的速度工作。 从而获得四倍的速度改善。
    • 86. 发明授权
    • Single ended sense amplifier with improved data recall for variable bit
line current
    • 单端读出放大器,具有改进的位线电流数据调用功能
    • US5013943A
    • 1991-05-07
    • US393489
    • 1989-08-11
    • Ryan T. Hirose
    • Ryan T. Hirose
    • G11C17/00G11C7/06G11C16/06H03K5/02
    • H03K5/023G11C7/067
    • A single ended sense amplifier senses whether or not a memory cell in an array conducts current from a bit line conductor to which the sense amplifier is connected. A first stage of the sense amplifier includes a number of separately biased transistors which establish a lower voltage level at a node when the cell conducts current than the higher voltage level at the node when the cell does not conduct current. A second stage of the sensed amplifier includes transistors connected in an inverting arrangement to receive the signal from the node and supply an output signal at an output terminal in response thereto. An equalizing transistor is selectively connected between the node and the output terminal and establishes a high gain bias point voltage at the node when conductive. The high gain bias point in intermediate the higher and lower voltages established at the node by the first stage. As soon as the equalizing transistor becomes nonconductive, the second stage is immediately driven to the correct output signal level by the voltage at the node from the first stage. A precharge transistor is conneced to the bit line to raise the voltage on it to a predetermined high level, thereafter allowing the voltage to decay before sensing the logical state of the cell. Precharging the bit line avoids the uncertainties associated with charging the bit line capacitance.
    • 单端读出放大器检测阵列中的存储单元是否从连接读出放大器的位线导体传导电流。 读出放大器的第一级包括多个单独偏置的晶体管,当单元不传导电流时,当单元传导电流时,在节点处,当节点传导电流时,在节点处建立较低的电压电平。 感测放大器的第二级包括以反相装置连接的晶体管,用于接收来自节点的信号,并响应于此在输出端提供输出信号。 均衡晶体管选择性地连接在节点和输出端之间,并在导电时在节点处建立高增益偏置点电压。 在第一级在节点处建立的较高和较低电压中间的高增益偏置点。 一旦均衡晶体管变得不导通,第二级立即从第一级的节点处的电压驱动到正确的输出信号电平。 将预充电晶体管连接到位线,以将其上的电压升高到预定的高电平,之后允许电压在感测电池的逻辑状态之前衰减。 预充电位线避免了与位线电容充电相关的不确定性。
    • 90. 发明授权
    • High speed static single-ended sense amplifier
    • 高速静态单端感测放大器
    • US4918341A
    • 1990-04-17
    • US230764
    • 1988-09-23
    • Douglas C. GalbraithMichael G. Ahrens
    • Douglas C. GalbraithMichael G. Ahrens
    • G11C7/06H03F3/70H03K5/02
    • H03F3/70G11C7/06H03K5/023
    • A high speed static single ended sense amplifier is disclosed, including, an input node, an output node, a first P-channel input transistor having its source connected to a source of positive voltage, its drain connected to the input node and its gate connected to a feedback node, a first N-channel input transistor having its drain connected to the input node, its source connected to a source of negative voltage and its gate connected to the feedback node, a first output P-channel transistor having its source connected to a source of positive voltage, its drain connected to the output node, and its gate connected to the feedback node, a first N-channel output transistor having its drain connected to the output node, its source connected to a source of positive voltage and its gate connected to the feedback node, an N-channel feedback transistor having its gate connected to the output node, its drain connected to a source of positive voltage and its source connected to the feedback node, a capacitive voltage divider connected between the source of negative voltage, the source of positive voltage, and the input node, the capacitive voltage divider including a parasitic capacitance and a P-channel gate capacitor connected between the input node and one of the positive or negative voltage sources, the capacitance ratio of the capacitive voltage divider being such as to give the same voltage divider ratio as the voltage divider ratio resulting from the first P-channel MOS input transistor and the first N-channel MOS input transistor.
    • 公开了一种高速静态单端读出放大器,其包括输入节点,输出节点,其源极连接到正电压源的第一P沟道输入晶体管,其漏极连接到输入节点,并且其栅极连接 到反馈节点,第一N沟道输入晶体管的漏极连接到输入节点,其源极连接到负电源并且其栅极连接到反馈节点,第一输出P沟道晶体管的源极连接 到正电压源,其漏极连接到输出节点,其栅极连接到反馈节点,第一N沟道输出晶体管的漏极连接到输出节点,其源极连接到正电压源, 其栅极连接到反馈节点,N沟道反馈晶体管的栅极连接到输出节点,其漏极连接到正电压源,其源极连接到反馈节点 连接在负电压源,正电压源和输入节点之间的电容分压器,电容分压器包括寄生电容和连接在输入节点与其中一个正极或负极之间的P沟道栅极电容器 负电压源,电容分压器的电容比使得能够提供与由第一P沟道MOS输入晶体管和第一N沟道MOS输入晶体管产生的分压比相同的分压比。