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    • 41. 发明专利
    • Input circuit
    • 输入电路
    • JP2014099684A
    • 2014-05-29
    • JP2012249182
    • 2012-11-13
    • Fujitsu Semiconductor Ltd富士通セミコンダクター株式会社
    • UNO OSAMU
    • H03K19/0175
    • H03K3/3565
    • PROBLEM TO BE SOLVED: To provide an input circuit that can suppress an increase in a signal propagation delay time.SOLUTION: An input circuit 10 includes a P channel MOS transistor TP1 having a first terminal connected to a power line L1 and a second terminal connected to a node N2, and a P channel MOS transistor TP2 having a first terminal connected to the node N2 and a second terminal connected to a node N1. The input circuit 10 includes an N channel MOS transistor TN1 having a first terminal connected to the node N1 and a second terminal connected to a node N3, and an N channel MOS transistor TN2 having a first terminal connected to the node N3 and a second terminal connected to a power line L2. The transistors TP1, TP2, TN1, TN2 have gate terminals fed with an input signal Vin. The input circuit 10 includes a control circuit 15 for controlling potentials of the nodes N2, N3 on the basis of the input signal Vin and a voltage V1 of the node N1.
    • 要解决的问题:提供可以抑制信号传播延迟时间增加的输入电路。解决方案:输入电路10包括具有连接到电力线L1的第一端子和连接到电源线L1的第二端子的P沟道MOS晶体管TP1 到节点N2,以及具有连接到节点N2的第一端子和连接到节点N1的第二端子的P沟道MOS晶体管TP2。 输入电路10包括具有连接到节点N1的第一端子和连接到节点N3的第二端子的N沟道MOS晶体管TN1和具有连接到节点N3的第一端子的N沟道MOS晶体管TN2和第二端子 连接到电力线L2。 晶体管TP1,TP2,TN1,TN2具有馈给输入信号Vin的栅极端子。 输入电路10包括用于基于输入信号Vin和节点N1的电压V1来控制节点N2,N3的电位的控制电路15。
    • 43. 发明专利
    • Clock generation circuit and imaging apparatus
    • 时钟生成电路和成像装置
    • JP2012231458A
    • 2012-11-22
    • JP2012086424
    • 2012-04-05
    • Olympus Corpオリンパス株式会社
    • HAGIWARA YOSHIOYAMAZAKI SUSUMU
    • H03K5/01H03K19/0175H04N5/374H04N5/378
    • H03K3/3565H03M1/14H03M1/56H04N5/378
    • PROBLEM TO BE SOLVED: To provide a similar function to a Schmitt trigger circuit and reduce a through current beyond the Schmitt trigger circuit.SOLUTION: An inverter circuit INV1 has a first circuit threshold lower than a circuit threshold of the preceding circuit, and receives an input clock output from the preceding circuit to output a first output signal depending on a logical state of the input clock and the first circuit threshold. An inverter circuit INV2 has a second circuit threshold higher than the circuit threshold of the preceding circuit, and receives the input clock output from the preceding circuit to output a second output signal depending on the logical state of the input clock and the second circuit threshold. A switch circuit SW receives the first output signal and the second output signal and outputs as an output clock either of a first voltage and a second voltage corresponding to different logical states when logical states of the first output signal and the second output signal change from different states to the same state.
    • 要解决的问题:提供与施密特触发电路相似的功能,并减少超过施密特触发电路的通过电流。 解决方案:逆变器电路INV1具有低于先前电路的电路阈值的第一电路阈值,并且接收从前一电路输出的输入时钟,以根据输入时钟的逻辑状态输出第一输出信号;以及 第一个电路门限。 逆变器电路INV2具有比先前电路的电路阈值高的第二电路阈值,并且接收从前一电路输出的输入时钟,以根据输入时钟的逻辑状态和第二电路阈值输出第二输出信号。 当第一输出信号和第二输出信号的逻辑状态从不同的状态变化时,开关电路SW接收第一输出信号和第二输出信号,并输出对应于不同逻辑状态的第一电压和第二电压的输出时钟 状态到相同的状态。 版权所有(C)2013,JPO&INPIT
    • 47. 发明专利
    • Input circuit
    • 输入电路
    • JP2008211707A
    • 2008-09-11
    • JP2007048445
    • 2007-02-28
    • Nec Electronics CorpNecエレクトロニクス株式会社
    • KAWASHIMA SHINJIDOI KAZUNORI
    • H03K19/0175H03K17/30H03K19/0948
    • H03K3/3565
    • PROBLEM TO BE SOLVED: To improve a through current flowing between a supply voltage and a ground potential in an input circuit so as to reduce current consumption of a semiconductor integrated circuit provided with the input circuit.
      SOLUTION: In an input circuit 20, connectively between a supply voltage and a ground potential, two resistors 21, 22 one of which 21 is connected in parallel to the other 22 via a PMOS transistor 25 are connected in series to two NMOS transistors 23, 24 which are controlled by an input voltage and one of which 22 is connected in parallel to the other 24 via an NMOS transistor 26, and a potential on a point of the series connection is outputted as an output voltage through an inverter 27, while the PMOS transistor 25 and the NMOS transistor 26 are complementarily controlled by the output potential of the inverter 27 so as to have hysteresis characteristics.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了改善在输入电路中的电源电压和接地电位之间流动的贯通电流,以便减少设置有输入电路的半导体集成电路的电流消耗。 解决方案:在输入电路20中,连接在电源电压和接地电位之间,其中一个21经由PMOS晶体管25与另一个22并联连接的两个电阻器21,22串联连接到两个NMOS 晶体管23,24由输入电压控制,其中一个22经由NMOS晶体管26与另一个24并联连接,并且串联连接点上的电位通过反相器27输出作为输出电压 而PMOS晶体管25和NMOS晶体管26由逆变器27的输出电位互补地控制,具有滞后特性。 版权所有(C)2008,JPO&INPIT
    • 48. 发明专利
    • Level shifter, level conversion circuit, and semiconductor integrated circuit
    • 水平变换器,电平转换电路和半导体集成电路
    • JP2005354207A
    • 2005-12-22
    • JP2004170310
    • 2004-06-08
    • Nec Electronics CorpNecエレクトロニクス株式会社
    • OZAWA YUKIO
    • H03K17/22H03K3/356H03K3/3565H03K19/0175H03K19/0185
    • H03K3/3565H03K3/356113
    • PROBLEM TO BE SOLVED: To provide a level shifter circuit for preventing malfunctions of an output buffer at application of power, with respect to a semiconductor integrated circuit having multiple power supplies. SOLUTION: N-type transistors; acting as reset transistors on the occurrence of interruption of an internal power supply, are connected respectively to both drain terminals of P-type transistors in latch connection in a level shifter. Further, the gate of the N-type transistor for actually executing resetting is driven by a sense circuit of an internal power supply level, the gate of the N-type transistor not used for the resetting is connected to GND, and the connection destinations of both the N-type transistors can be properly replaced by a minimum wire change in response to the setting state. COPYRIGHT: (C)2006,JPO&NCIPI
    • 解决的问题:相对于具有多个电源的半导体集成电路,提供用于防止输出缓冲器在施加电力时的故障的电平移位器电路。 解决方案:N型晶体管; 在内部电源的中断发生时作为复位晶体管分别连接在电平移位器的锁存连接中的P型晶体管的两个漏极端子。 此外,用于实际执行复位的N型晶体管的栅极由内部电源电平的检测电路驱动,未用于复位的N型晶体管的栅极连接到GND,并且连接目的地 响应于设定状态,N型晶体管都可以被最小的线变化适当地替换。 版权所有(C)2006,JPO&NCIPI