公开(公告)号：US06483357B2

公开(公告)日：2002-11-19

申请号：US09811578

申请日：2001-03-20

申请人： Hiroshi Kato ,  Fukashi Morishita

发明人： Hiroshi Kato ,  Fukashi Morishita

IPC分类号： H03L700

CPC分类号： G05F1/465

摘要： A sense signal IVOFF is generated by a power supply level sense circuit with an external power supply potential Ext.Vcc1 as the operating power supply potential to sense the level of an external power supply potential Ext.Vcc2. By suppressing generation of an internal power supply potential or fixing the internal node by the sense signal IVOFF, the through current at the time of power on can be reduced.

摘要翻译： 感测信号IVOFF由电源电平检测电路产生，外部电源电位Ext.Vcc1作为工作电源电位，用于感测外部电源电位Ext.Vcc2的电平。 通过抑制内部电源电位的产生或通过感测信号IVOFF固定内部节点，可以减少上电时的通过电流。

公开(公告)号：US06246280B1

公开(公告)日：2001-06-12

申请号：US09321884

申请日：1999-05-28

申请人： Fukashi Morishita

发明人： Fukashi Morishita

IPC分类号： G05F110

CPC分类号： H02M3/073 ,  G11C5/146 ,  G11C11/4074 ,  H02M2001/009 ,  H02M2003/071

摘要： A voltage generating circuit of the present invention includes a charge pump regulator and a voltage converting circuit. Charge pump regulator receives Ext.Vcc and a ground voltage as inputs and outputs a negative voltage Vbb1. Charge pump regulator receives Int.Vcc and negative voltage Vbb1 as inputs and outputs negative voltage Vbb2(

摘要翻译： 本发明的电压产生电路包括电荷泵调节器和电压转换电路。 电荷泵调节器接收Ext.Vcc和接地电压作为输入，并输出负电压Vbb1。 电荷泵调节器接收Int.Vcc和负电压Vbb1作为输入，并输出负电压Vbb2（

公开(公告)号：US6154411A

公开(公告)日：2000-11-28

申请号：US324802

申请日：1999-06-03

申请人： Fukashi Morishita

发明人： Fukashi Morishita

IPC分类号： G11C11/407 ,  G11C5/14 ,  G11C11/4074 ,  H02M3/07 ,  G11C7/00

CPC分类号： G11C5/145 ,  G11C11/4074

摘要： A boosting circuit is provided with a voltage detection circuit, first through fourth oscillators, and first through fourth charge pump circuits. The voltage detection circuit compares each of the first through fourth voltages obtained by dividing a boosted voltage with a reference voltage, and generates first through fourth activation signals. The first through fourth oscillators output pulse signals at first through fourth frequencies, respectively, as first through fourth drive signals. The first through fourth charge pump circuits operate in response to the first through fourth drive signals, respectively, and boost the boosted voltage. Accordingly, it is possible to provide a stable boosted voltage, with suppressing over shoot and under shoot with respect to the boosted voltage as a target.

摘要翻译： 升压电路具有电压检测电路，第一至第四振荡器以及第一至第四电荷泵电路。 电压检测电路将通过将升压电压分压获得的第一至第四电压与参考电压进行比较，并且产生第一至第四激活信号。 第一至第四振荡器分别以第一至第四驱动信号在第一至第四频率处输出脉冲信号。 第一至第四电荷泵电路分别响应于第一至第四驱动信号而工作，并升压升压电压。 因此，可以提供稳定的升压电压，相对于作为目标的升压电压抑制过拍和下拍。

公开(公告)号：US08466718B2

公开(公告)日：2013-06-18

申请号：US13081957

申请日：2011-04-07

申请人： Yoshiyuki Ezumi ,  Fukashi Morishita

发明人： Yoshiyuki Ezumi ,  Fukashi Morishita

IPC分类号： H03K3/00

CPC分类号： H03K19/00361 ,  H03K19/018528

摘要： Disclosed is a semiconductor device having an output driver and a driver replica. The output driver is based on a scalable low-voltage signaling technology and capable of operating on low power and making automatic adjustments of output characteristics in accordance with the magnitude of a reference current. The driver replica, which is a duplicate of the output driver, adjusts the magnitude of the reference current in accordance with the difference between its own output and a reference voltage and outputs the adjusted current to the output driver.

摘要翻译： 公开了具有输出驱动器和驱动器副本的半导体器件。 输出驱动器基于可扩展的低电压信号技术，能够以低功耗运行，并根据参考电流的大小自动调整输出特性。 与输出驱动器重复的驱动器副本根据其自身的输出和参考电压之间的差异来调整参考电流的大小，并将调整的电流输出到输出驱动器。

公开(公告)号：US08451678B2

公开(公告)日：2013-05-28

申请号：US13080114

申请日：2011-04-05

申请人： Mihoko Akiyama ,  Futoshi Igaue ,  Kenji Yoshinaga ,  Masashi Matsumura ,  Fukashi Morishita

发明人： Mihoko Akiyama ,  Futoshi Igaue ,  Kenji Yoshinaga ,  Masashi Matsumura ,  Fukashi Morishita

IPC分类号： G11C5/14

CPC分类号： G05F1/468 ,  G11C5/025 ,  G11C5/147

摘要： A semiconductor integrated circuit device has a negative voltage generation circuit provided at each power supply circuit unit for six memory macros. Therefore, the response with respect to variation in a negative voltage is increased. In a standby mode, a negative voltage supply line for the six memory macros is connected by a switch circuit, and only a negative voltage generation circuit of one power supply circuit unit among six negative voltage generation circuits of the six power supply circuit units is rendered active. Thus, increase in standby current can be prevented.

摘要翻译： 半导体集成电路器件具有设置在每个用于六个存储器宏的电源电路单元的负电压产生电路。 因此，相对于负电压的变化的响应增加。 在待机模式下，通过开关电路连接六个存储器宏的负电压供给线，并且仅在六个电源电路单元的六个负电压产生电路中仅一个电源电路单元的负电压产生电路 活性。 因此，可以防止待机电流的增加。

公开(公告)号：US20120112039A1

公开(公告)日：2012-05-10

申请号：US13277921

申请日：2011-10-20

申请人： Hiroki Sugano ,  Fukashi Morishita

发明人： Hiroki Sugano ,  Fukashi Morishita

IPC分类号： H01L27/146

CPC分类号： H04N5/3532 ,  H04N5/3745 ,  H04N5/376

摘要： An image sensor with a small circuit area is provided. In the image sensor, a TX decoder which generates transfer signals TX includes a latch circuit. The latch circuit is set when a corresponding row group is selected and when a set signal is set to an “H” level, and is reset when a reset signal is set to an “L” level. The latch circuit serves also as a voltage level shift circuit which converts the “H” level of a signal from a first power supply voltage into a second power supply voltage. Therefore, plural row groups can be selected by setting plural latch circuits. It is not necessary to provide a voltage level shift circuit separately.

摘要翻译： 提供具有小电路面积的图像传感器。 在图像传感器中，产生传送信号TX <3：0>的TX解码器包括锁存电路。 当选择相应的行组并且将设置信号设置为“H”电平时，锁存电路被设置，并且当复位信号被设置为“L”电平时，锁存电路被复位。 锁存电路还用作电压电平移位电路，其将来自第一电源电压的信号的“H”电平转换为第二电源电压。 因此，可以通过设置多个锁存电路来选择多个行组。 不需要单独提供电压电平移位电路。

公开(公告)号：US07479820B2

公开(公告)日：2009-01-20

申请号：US11272798

申请日：2005-11-15

申请人： Mako Okamoto ,  Fukashi Morishita

发明人： Mako Okamoto ,  Fukashi Morishita

IPC分类号： G05F3/02

CPC分类号： G11C5/145 ,  G11C11/4074 ,  G11C11/4085 ,  H03K5/2481

摘要： A detector circuit and a negative voltage generating circuit capable of performing high-speed operation are provided. A negative voltage generating circuit includes a charge pump circuit, a first voltage divider circuit that makes a voltage division between an output of the charge pump circuit and a power supply to output a detect potential, a reference voltage generating circuit that generates a reference potential, and a comparator circuit that compares the detect potential and the reference potential. The charge pump circuit is driven by an output signal of the comparator circuit and generates the negative voltage. In the first voltage divider circuit, NMOS transistors and make the voltage division between the negative voltage and the power supply to obtain the detect potential.

摘要翻译： 提供能够执行高速操作的检测器电路和负电压产生电路。 负电压产生电路包括电荷泵电路，在电荷泵电路的输出和电源之间进行分压以输出检测电位的第一分压电路，产生参考电位的基准电压产生电路， 以及比较电路，其比较检测电位和参考电位。 电荷泵电路由比较器电路的输出信号驱动，并产生负电压。 在第一分压电路中，NMOS晶体管和负电压和电源之间的分压获得检测电位。

公开(公告)号：US20080298156A1

公开(公告)日：2008-12-04

申请号：US12170055

申请日：2008-07-09

申请人： Kenji YOSHINAGA ,  Masashi Matsumura ,  Futoshi Igaue ,  Mihoko Akiyama ,  Fukashi Morishita

发明人： Kenji YOSHINAGA ,  Masashi Matsumura ,  Futoshi Igaue ,  Mihoko Akiyama ,  Fukashi Morishita

IPC分类号： G11C5/14

CPC分类号： G11C29/48 ,  G11C29/12 ,  G11C29/12005

摘要： A semiconductor device has a first operation mode and a second operation mode in which power supply with a higher voltage value than that in the first operation mode is provided. The semiconductor device includes a memory portion having memory cells for storing data and a power supply circuit portion supplying a first voltage and a second voltage to the memory portion. The memory portion writes or reads data to or from the memory cells based on the first voltage and the second voltage, and the power supply circuit portion provides a smaller voltage difference between the first voltage and the second voltage in the second operation mode as compared with the voltage difference in the first operation mode.

摘要翻译： 半导体器件具有第一操作模式和第二操作模式，其中提供具有比第一操作模式中更高的电压值的电源。 半导体器件包括具有用于存储数据的存储单元的存储器部分和向存储器部分提供第一电压和第二电压的电源电路部分。 存储器部分基于第一电压和第二电压将数据写入或从存储器单元读取数据，并且电源电路部分在第二操作模式中在第一电压和第二电压之间提供较小的电压差，与第 在第一操作模式下的电压差。

公开(公告)号：US20060132247A1

公开(公告)日：2006-06-22

申请号：US11311301

申请日：2005-12-20

申请人： Masanobu Kishida ,  Fukashi Morishita

发明人： Masanobu Kishida ,  Fukashi Morishita

IPC分类号： H03K3/03

CPC分类号： H03K3/0315 ,  H03K17/063

摘要： The present invention provides a current-limited oscillator capable of performing stable operation even when it is driven with a low power-supply voltage, and a charge pump circuit using the oscillator. A current-limited oscillator has a delay section that includes a plurality of series-connected inverters to delay an output pulse on the basis of a current limiting level indication signal, and the oscillator further includes at least one first transistor that limits a first current between the inverters and a high potential power supply and at least one second transistor that limits a second current between the inverters and a low potential power supply, wherein at least one of the plurality of inverters is configured as a first inverter that is connected with the first transistor and is not connected with the second transistor, and at least another of the plurality of inverters is configured as a second inverter that is not connected with the first transistor and is connected with the second transistor.

摘要翻译： 本发明提供一种即使在以低电源电压驱动的情况下也能够稳定工作的电流限制型振荡器和使用该振荡器的电荷泵电路。 限流振荡器具有延迟部分，该延迟部分包括多个串联的反相器，用于基于限流电平指示信号来延迟输出脉冲，并且该振荡器还包括至少一个第一晶体管，其限制第一电流 所述逆变器和高电位电源以及限制所述逆变器之间的第二电流和低电位电源的至少一个第二晶体管，其中所述多个逆变器中的至少一个被配置为与所述第一逆变器连接的第一逆变器 并且不与第二晶体管连接，并且多个反相器中的至少另一个被配置为不与第一晶体管连接并与第二晶体管连接的第二反相器。

公开(公告)号：US20050264347A1

公开(公告)日：2005-12-01

申请号：US11135488

申请日：2005-05-24

申请人： Takayuki Gyohten ,  Fukashi Morishita

发明人： Takayuki Gyohten ,  Fukashi Morishita

IPC分类号： H01L27/04 ,  G05F1/10 ,  G05F1/46 ,  G05F3/24 ,  G11C11/407 ,  H01L21/822

CPC分类号： G05F1/465

摘要： A voltage for reference at a voltage level higher than a target value is produced from a constant current provided from a constant current generating circuit, and is subjected to resistance division by a resistance division circuit to produce a reference voltage at the target level, and then a final reference voltage is produced by a voltage follower. An internal voltage generating circuit thus provided can generate the reference voltage having the desired voltage level with high accuracy as well as an internal voltage based on the reference voltage by controlling temperature characteristic even with a low power supply voltage.

摘要翻译： 在从恒定电流产生电路提供的恒定电流中产生高于目标值的电压电压的参考电压，并通过电阻分割电路进行电阻分割以产生目标电平的参考电压，然后 最终的参考电压由电压跟随器产生。 由此提供的内部电压产生电路即使在低电源电压下也可以通过控制温度特性，以高精度产生具有所需电压电平的基准电压以及基于参考电压的内部电压。