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1. 发明授权

US06178138B1 Asynchronously addressable clocked memory device and method of operating same 失效
标题翻译：异步寻址时钟存储器件及其操作方法
公开(公告)号：US06178138B1
公开(公告)日：2001-01-23
申请号：US09400212
申请日：1999-09-21
申请人： Gary F. Derbenwick , David A. Kamp , Michael V. Cordoba , Ryan T. Hirose
发明人： Gary F. Derbenwick , David A. Kamp , Michael V. Cordoba , Ryan T. Hirose
IPC分类号： G11C800
CPC分类号： G11C8/06 , G11C8/18
摘要： A timing circuit produces a clock signal. An address buffer circuit receives and stores a first address in a first latch and a second address in a second latch asynchronously with respect to the clock signal. A memory control circuit associated with an array of memory cells accesses a first memory cell in the array corresponding to the first address in a first clocked access cycle, and accesses a second memory cell in the array corresponding to the second address in a second clocked access cycle. If a further address is asynchronously received before said second access cycle, the further address replaces the second address in the second latch.
摘要翻译：定时电路产生时钟信号。地址缓冲电路相对于时钟信号异步地接收并存储第一锁存器中的第一地址和第二锁存器中的第二地址。与存储器单元阵列相关联的存储器控制电路在第一计时的访问周期中访问对应于第一地址的阵列中的第一存储器单元，并且以第二时钟控制存取器访问对应于第二地址的阵列中的第二存储器单元周期。如果在所述第二访问周期之前异步地接收另一地址，则另外的地址替换第二锁存器中的第二地址。

2. 发明授权

US07440344B2 Level shifter for low voltage operation 有权
标题翻译：电平移位器用于低电压工作
公开(公告)号：US07440344B2
公开(公告)日：2008-10-21
申请号：US11732219
申请日：2007-04-03
申请人： Tae H. Kim , Michael V. Cordoba , Howard C. Kirsch
发明人： Tae H. Kim , Michael V. Cordoba , Howard C. Kirsch
IPC分类号： G11C7/00
CPC分类号： G11C5/147 , G11C16/30 , H03K3/356113
摘要： A voltage level translator boosts the gate voltage of a transistor, and increases the gate to source voltage, to allow operation over a wider range of supply voltages. The P/N ratio of transistors in the voltage level translator is therefore increased, and control of the flipping of nodes is dependent on gate voltages as opposed to P/N ratios.
摘要翻译：电压电平转换器提高晶体管的栅极电压，并增加栅极到源极电压，以允许在更宽的电源电压范围内工作。因此，电压电平转换器中的晶体管的P / N比被增加，并且节点的翻转的控制取决于栅极电压而不是P / N比。

3. 发明授权

US6031407A Low power circuit for detecting a slow changing input 失效
标题翻译：用于检测慢速变化输入的低功率电路
公开(公告)号：US6031407A
公开(公告)日：2000-02-29
申请号：US271477
申请日：1994-07-07
申请人： Michael V. Cordoba , Kim C. Hardee
发明人： Michael V. Cordoba , Kim C. Hardee
IPC分类号： H03K3/354 , H03K3/011 , H03K3/03 , H03K5/13 , H03K17/687
CPC分类号： H03K3/0315 , H03K3/011
摘要： A constant current source is used to provide a constant current to set a delay which defines the period of the output of the oscillator. The delay is preferably set by charging a capacitor with the constant current. Because the current is independent of variations in V.sub.CC and temperature, the capacitor will charge for a given period. Therefore, the frequency or period of oscillation will also be fixed and independent of variation in V.sub.CC or temperature. A current limiting circuit and latch are provided to generate an output which will be transmitted through one or a series of inverters. In an alternate embodiment, a differential amplifier is provided between the delay circuit and the current limiting circuit. This differential amplifier is typically needed in a case where VCC is not well-controlled to provide an output signal which has an appropriate voltage. A method of generating an oscillating output for refreshing a DRAM and a method for refreshing a DRAM are also disclosed.
摘要翻译：使用恒流源来提供恒定电流来设定限定振荡器的输出周期的延迟。延迟优选通过用恒定电流对电容器充电来设定。由于电流与VCC和温度的变化无关，电容器将在给定的时间内充电。因此，振荡的频率或周期也将是固定的，与VCC或温度的变化无关。提供限流电路和锁存器以产生将通过一个或一系列逆变器传输的输出。在替代实施例中，差分放大器设置在延迟电路和限流电路之间。在VCC未被良好控制以提供具有适当电压的输出信号的情况下，通常需要该差分放大器。还公开了一种产生用于刷新DRAM的振荡输出的方法和用于刷新DRAM的方法。

4. 发明授权

US5698903A Bond pad option for integrated circuits 失效
标题翻译：用于集成电路的焊盘选项
公开(公告)号：US5698903A
公开(公告)日：1997-12-16
申请号：US437811
申请日：1995-05-09
申请人： Michael Parris , Michael V. Cordoba
发明人： Michael Parris , Michael V. Cordoba
IPC分类号： H01L21/60 , H01L23/485 , H01L23/50 , H01L27/118 , H01L29/788 , H01L23/62 , H01L27/01
CPC分类号： H01L24/06 , H01L23/50 , H01L24/03 , H01L27/11898 , H01L2224/05554 , H01L2224/05599 , H01L2224/48247 , H01L2224/85385 , H01L24/48 , H01L2924/00014 , H01L2924/01004 , H01L2924/01005 , H01L2924/01014 , H01L2924/01033 , H01L2924/01082 , H01L2924/14
摘要： An integrated circuit having a first and second bond pads, a latch circuit, and a voltage lead. Different configurations of the internal circuitry of the integrated circuit are selected by applying the voltage lead either to the first or second bond pads. This result is achieved because the latch circuit, coupled between the first and second bond pads, is capable of inverting the voltage response seen at the first bond pad.
摘要翻译：具有第一和第二接合焊盘，锁存电路和电压引线的集成电路。通过将电压引线施加到第一或第二接合焊盘来选择集成电路的内部电路的不同配置。实现该结果是因为耦合在第一和第二接合焊盘之间的锁存电路能够反转在第一接合焊盘处看到的电压响应。

5. 发明授权

US5461590A Low power VCC and temperature independent oscillator 失效
标题翻译：低功耗VCC和独立振荡器
公开(公告)号：US5461590A
公开(公告)日：1995-10-24
申请号：US271719
申请日：1994-07-07
申请人： Michael V. Cordoba , Kim C. Hardee
发明人： Michael V. Cordoba , Kim C. Hardee
IPC分类号： H03K3/354 , H03K3/011 , H03K3/03 , H03K5/13 , G11C7/00
CPC分类号： H03K3/0315 , H03K3/011
摘要： A constant current source is used to provide a constant current to set a delay which defines the period of the output of the oscillator. The delay is preferably set by charging a capacitor with the constant current. Because the current is independent of variations in V.sub.CC and temperature, the capacitor will charge for a given period. Therefore, the frequency or period of oscillation will also be fixed and independent of variation in V.sub.CC or temperature. A current limiting circuit and latch are provided to generate an output which will be transmitted through one or a series of inverters. In an alternate embodiment, a differential amplifier is provided between the delay circuit and the current limiting circuit. This differential amplifier is typically needed in a case where VCC is not well-controlled to provide an output signal which has an appropriate voltage. A method of generating an oscillating output for refreshing a DRAM and a method for refreshing a DRAM are also disclosed.
摘要翻译：使用恒流源来提供恒定电流来设定限定振荡器的输出周期的延迟。延迟优选通过用恒定电流对电容器充电来设定。由于电流与VCC和温度的变化无关，电容器将在给定的时间内充电。因此，振荡的频率或周期也将是固定的，与VCC或温度的变化无关。提供限流电路和锁存器以产生将通过一个或一系列逆变器传输的输出。在替代实施例中，差分放大器设置在延迟电路和限流电路之间。在VCC未被良好控制以提供具有适当电压的输出信号的情况下，通常需要该差分放大器。还公开了一种产生用于刷新DRAM的振荡输出的方法和用于刷新DRAM的方法。

6. 发明授权

US5412257A High efficiency N-channel charge pump having a primary pump and a non-cascaded secondary pump 失效
标题翻译：具有初级泵和非级联次级泵的高效N沟道电荷泵
公开(公告)号：US5412257A
公开(公告)日：1995-05-02
申请号：US964003
申请日：1992-10-20
申请人： Michael V. Cordoba , Kim C. Hardee
发明人： Michael V. Cordoba , Kim C. Hardee
IPC分类号： G11C11/407 , G11C5/14 , G11C16/06 , G11C17/00 , H02M3/07 , H03K19/094 , H03K3/01
CPC分类号： G11C5/145 , H02M3/073
摘要： A high efficiency charge pump for low and wide voltage ranges. The charge pump includes main and secondary charge pumps, the secondary charge pump is employed to avoid the Vt.sub.N drop that the main charge pump exhibits. The secondary charge pump allows the main charge pump to pump to a theoretical maximum of 2 VCC, while maintaining an efficiency close to 40%.
摘要翻译：用于低电压和宽电压范围的高效率电荷泵。电荷泵包括主电荷泵和二次电荷泵，二次电荷泵用于避免主电荷泵显示的VtN下降。二次充电泵允许主电荷泵泵送到理论上最大值为2 VCC，同时保持效率接近40％。

7. 发明授权

US5570005A Wide range power supply for integrated circuits 失效
公开(公告)号：US5570005A
公开(公告)日：1996-10-29
申请号：US471486
申请日：1995-06-06
申请人： Kim C. Hardee , Michael V. Cordoba
发明人： Kim C. Hardee , Michael V. Cordoba
IPC分类号： G11C11/407 , G05F1/46 , G05F3/20 , G11C5/14 , G11C11/401 , H01L21/822 , H01L27/04 , H02M3/07 , H03K19/00 , G05F3/16
CPC分类号： G11C5/146 , G05F1/465 , G05F3/205 , G11C5/14 , G11C5/145
摘要： A wide range power supply for integrated circuits includes a voltage-down converter to receive the input supply voltage and generate a controlled low voltage signal. The circuit also includes a voltage-up converter which receives the controlled low voltage signal to generate a high voltage signal for high power circuits. Finally, a substrate bias generator is employed in the circuit to generate a substrate bias signal. Because the low power voltage is controlled, the high power voltage and the substrate bias signal are independent of any variations in input supply voltage. In alternate embodiments, the voltage-up converter or voltage-down converter can be disabled if the external supply voltage is controlled and maintained in at high or low voltage respectfully.

8. 发明授权

US5483152A Wide range power supply for integrated circuits 失效
标题翻译：用于集成电路的宽范围电源
公开(公告)号：US5483152A
公开(公告)日：1996-01-09
申请号：US3450
申请日：1993-01-12
申请人： Kim C. Hardee , Michael V. Cordoba
发明人： Kim C. Hardee , Michael V. Cordoba
IPC分类号： G11C11/407 , G05F1/46 , G05F3/20 , G11C5/14 , G11C11/401 , H01L21/822 , H01L27/04 , H02M3/07 , H03K19/00 , G05F3/16
CPC分类号： G11C5/146 , G05F1/465 , G05F3/205 , G11C5/14 , G11C5/145
摘要： A wide range power supply for integrated circuits includes a voltage-down converter to receive the input supply voltage and generate a controlled low voltage signal. The circuit also includes a voltage-up converter which receives the controlled low voltage signal to generate a high voltage signal for high power circuits. Finally, a substrate bias generator is employed in the circuit to generate a substrate bias signal. Because the low power voltage is controlled, the high power voltage and the substrate bias signal are independent of any variations in input supply voltage. In alternate embodiments, the voltage-up converter or voltage-down converter can be disabled if the external supply voltage is controlled and maintained in at high or low voltage respectfully.
摘要翻译：用于集成电路的宽范围电源包括用于接收输入电源电压并产生受控低电压信号的降压转换器。电路还包括升压转换器，其接收受控低电压信号以产生用于高功率电路的高电压信号。最后，在电路中采用衬底偏置发生器来产生衬底偏置信号。由于低功率电压受到控制，因此高功率电压和衬底偏置信号与输入电源电压的任何变化无关。在替代实施例中，如果外部电源电压被控制并保持在高电压或低电压，则可以禁用升压转换器或降压转换器。

9. 发明授权

US5345195A Low power V.sub.cc and temperature independent oscillator 失效
标题翻译：低功耗Vcc和独立振荡器
公开(公告)号：US5345195A
公开(公告)日：1994-09-06
申请号：US964761
申请日：1992-10-22
申请人： Michael V. Cordoba , Kim C. Hardee
发明人： Michael V. Cordoba , Kim C. Hardee
IPC分类号： H03K3/354 , H03K3/011 , H03K3/03 , H03K5/13
CPC分类号： H03K3/0315 , H03K3/011
摘要： A constant current source is used to provide a constant current to set a delay which defines the period of the output of the oscillator. The delay is preferably set by charging a capacitor with the constant current. Because the current is independent of variations in V.sub.CC and temperature, the capacitor will charge for a given period. Therefore, the frequency or period of oscillation will also be fixed and independent of variation in V.sub.CC or temperature. A current limiting circuit and latch are provided to generate an output which will be transmitted through one or a series of inverters. In an alternate embodiment, a differential amplifier is provided between the delay circuit and the current limiting circuit. This differential amplifier is typically needed in a case where VCC is not well-controlled to provide an output signal which has an appropriate voltage. A method of generating an oscillating output for refreshing a DRAM and a method :for refreshing a DRAM are also disclosed.
摘要翻译：使用恒流源来提供恒定电流来设定限定振荡器的输出周期的延迟。延迟优选通过用恒定电流对电容器充电来设定。由于电流与VCC和温度的变化无关，电容器将在给定的时间内充电。因此，振荡的频率或周期也将是固定的，与VCC或温度的变化无关。提供限流电路和锁存器以产生将通过一个或一系列逆变器传输的输出。在替代实施例中，差分放大器设置在延迟电路和限流电路之间。在VCC未被良好控制以提供具有适当电压的输出信号的情况下，通常需要该差分放大器。还公开了一种产生用于刷新DRAM的振荡输出的方法和一种用于刷新DRAM的方法。

10. 发明授权

US5315230A Temperature compensated voltage reference for low and wide voltage ranges 失效
标题翻译：低和宽电压范围的温度补偿电压基准
公开(公告)号：US5315230A
公开(公告)日：1994-05-24
申请号：US940084
申请日：1992-09-03
申请人： Michael V. Cordoba , Kim C. Hardee , Douglas B. Butler
发明人： Michael V. Cordoba , Kim C. Hardee , Douglas B. Butler
IPC分类号： H03G3/02 , G05F3/24 , G05F3/26 , H03K19/00 , G05F3/16
CPC分类号： G05F3/245 , G05F3/247 , Y10S323/907
摘要： A reference voltage generator which compensates for temperature and V.sub.CC variations includes a constant current source and a MOS P-channel transistor. The constant current source provides a constant current over a wide range of V.sub.CC that corresponds to biasing a p-channel transistor in a region where its resistance is constant. The output of the current source is supplied to the P-channel transistor, which is in saturation. The constant current provides a constant voltage drop across the P-channel transistor. Hence, a stable reference voltage is generated. Temperature compensation is provided by biasing the P-channel transistor to saturation and supplying a constant current that the corresponds to biasing a p-channel transistor where the resistance is substantially constant over a temperature range. The current causes a voltage drop across the P-channel transistor to maintain a stable reference voltage. Also, temperature compensation is further provided by utilizing the negative temperature coefficients of the resistors included in the constant current source.
摘要翻译：补偿温度和VCC变化的参考电压发生器包括恒定电流源和MOS P沟道晶体管。恒流源在宽范围的VCC上提供恒定电流，该电流对应于在其电阻恒定的区域中偏置p沟道晶体管。电流源的输出被提供给处于饱和状态的P沟道晶体管。恒定电流在P沟道晶体管两端提供恒定的电压降。因此，产生稳定的参考电压。通过将P沟道晶体管偏置为饱和并提供对应于偏置p沟道晶体管的恒定电流来提供温度补偿，其中电阻在温度范围内基本上恒定。电流导致P沟道晶体管两端的电压降保持稳定的参考电压。此外，通过利用包括在恒流源中的电阻器的负温度系数来进一步提供温度补偿。

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