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    • 51. 发明授权
    • Digital random noise generator
    • 数字随机噪声发生器
    • US06910165B2
    • 2005-06-21
    • US09795899
    • 2001-02-28
    • Howard H. ChenLi-Kong WangLouis L. HsuSang H. DhongTin-chee Lo
    • Howard H. ChenLi-Kong WangLouis L. HsuSang H. DhongTin-chee Lo
    • G01R31/28H03K3/84G06F11/00
    • H03K3/84G01R31/2841
    • A system and method for generating random noise for use in testing electronic devices comprises a first random pattern generator circuit for generating first sets of random bit pattern signals; one or more delay devices each receiving a trigger input signal and a random bit pattern signal set for generating in response a respective delay output signal, each delay output signal being delayed in time with respect to a respective trigger signal, a delay time being determined by the bit pattern set received; and, an oscillator circuit device associated with a respective one or more delay devices for receiving a respective delay output signal therefrom and generating a respective oscillating signal, each oscillator signal generated being used to generate artificial random noise for emulating a real noise environment in an electronic device. A second random pattern generator circuit may be provided for generating second sets of random bit pattern signals for receipt by each of the associated oscillator circuit devices in order to frequency adjust in a random manner, each of the oscillator signals.
    • 用于产生用于测试电子设备的随机噪声的系统和方法包括:第一随机模式发生器电路,用于产生第一组随机位模式信号; 每个接收触发输入信号的一个或多个延迟装置和随机位模式信号组,用于响应于相应的延迟输出信号而产生,每个延迟输出信号相对于相应的触发信号在时间上延迟,延迟时间由 接收到位模式集; 以及与相应的一个或多个延迟装置相关联的振荡器电路装置,用于从其接收相应的延迟输出信号并产生相应的振荡信号,所产生的每个振荡器信号用于产生人造随机噪声,以仿真电子中的实际噪声环境 设备。 可以提供第二随机模式发生器电路,用于产生第二组随机位模式信号,以便由每个相关联的振荡器电路装置接收,以便随机地调整每个振荡器信号。
    • 52. 发明授权
    • Distributed DC voltage generator for system on chip
    • 分布式直流电压发生器,用于片上系统
    • US06803805B2
    • 2004-10-12
    • US10118753
    • 2002-04-09
    • Li-Kong WangLouis L. HsuFanchieh Yee
    • Li-Kong WangLouis L. HsuFanchieh Yee
    • G05F302
    • G06F1/26Y10T307/25
    • A system on a chip (SOC voltage generator) system is provided for supplying at least one voltage level to a plurality of units on a chip having an SOC design. The system includes a plurality of local DC voltage generators distributed throughout the chip, each local DC voltage generator independently supplying voltage to at least one unit of the plurality of units, each local DC voltage generator including a regulator system outputting one pump control signal; and a pump system receiving the one pump control signal and outputting at least one voltage level in accordance with the one pump control signal. Furthermore a method for supplying voltage to a plurality of units on a chip having an SOC design is provided. The method includes the steps of distributing a plurality of local DC voltage generators throughout the chip; and supplying at least one voltage level to the plurality of units via the plurality of local DC voltage generators.
    • 提供了一种芯片系统(SOC电压发生器)系统,用于向具有SOC设计的芯片上的多个单元提供至少一个电压电平。 该系统包括分布在整个芯片上的多个本地直流电压发生器,每个局部直流电压发生器独立地向多个单元中的至少一个单元提供电压,每个局部直流电压发生器包括输出一个泵控制信号的调节器系统; 以及泵系统,接收所述一个泵控制信号,并根据所述一个泵控制信号输出至少一个电压电平。 此外,提供了一种用于向具有SOC设计的芯片上的多个单元提供电压的方法。 该方法包括在整个芯片上分配多个局部DC电压发生器的步骤; 并且经由所述多个本地DC电压发生器向所述多个单元提供至少一个电压电平。
    • 55. 发明授权
    • Multi-port memory device and system for addressing the multi-port memory device
    • US06594196B2
    • 2003-07-15
    • US09725967
    • 2000-11-29
    • Louis L HsuTin-chee LoLi-Kong Wang
    • Louis L HsuTin-chee LoLi-Kong Wang
    • G11C800
    • G06F13/18G11C7/1075G11C8/16G11C11/405
    • A multi-port memory array is associated with wordlines and bit-lines to perform data read/write operation and has multi-port memory cells each of which includes multiple ports through which the wordlines and bit-lines are provided, multiple transistor devices each of which corresponds to each of the multiple ports and is coupled to a wordline and a bit-line through a corresponding port, each transistor device being gated by a wordline and having a conduction path of which a first end is connected to a bit-line, and a charge storage device commonly connected to a second end of a conduction path of each of the transistor devices, where the charge storage device is charged when any of the plurality of transistor devices is activated. A system for addressing the multi-port memory array includes a conflict detector for detecting a conflict between two or more of the row address signals to generate a conflict control signal corresponding to the conflict detected, a priority logic circuit for performing a logic operation with respect to the request command signals based on a predetermined priority logic to generate prioritized signals, and a selection unit for selecting one of a request command signal and a prioritized signal corresponding to the request command signal in response to the conflict control signal, where a signal selected by the selection unit selects a corresponding one of the row address signals.
    • 57. 发明授权
    • Integrated redundancy architecture system for an embedded DRAM
    • 嵌入式DRAM的集成冗余架构系统
    • US06542973B2
    • 2003-04-01
    • US09898434
    • 2001-07-03
    • Louis L. HsuLi-Kong WangToshiaki K. KirihataGregory J. Fredeman
    • Louis L. HsuLi-Kong WangToshiaki K. KirihataGregory J. Fredeman
    • G06F1200
    • G11C29/846G06F12/0893
    • An integrated redundancy eDRAM architecture system for an embedded DRAM macro system having a wide data bandwidth and wide internal bus width is disclosed which provides column and row redundancy for defective columns and rows of the eDRAM macro system. Internally generated column and row addresses of defective columns and rows of each micro-cell block are stored in a memory device, such as a fuse bank, during an eDRAM macro test mode in order for the information to be quickly retrieved during each cycle of eDRAM operation to provide an SRAM-like operation. A column steering circuit steers column redundant elements to replace defective column elements. Redundancy information is either supplied from a SRAM fuse data storage device or from a TAG memory device depending on whether a read or write operation, respectively, is being performed. The integrated redundancy eDRAM architecture system enables data to be sent and received to and from the eDRAM macro system without adding any extra delay to the data flow, thereby protecting data flow pattern integrity.
    • 公开了一种用于具有宽数据带宽和宽内部总线宽度的嵌入式DRAM宏系统的集成冗余eDRAM架构系统,其为eDRAM宏系统的有缺陷的列和行提供列和行冗余。 在eDRAM宏测试模式期间,每个微小区块的有缺陷的列和行的内部生成的列和行地址存储在诸如保险丝库的存储器件中,以便在eDRAM的每个周期期间快速检索信息 操作提供类似SRAM的操作。 列转向电路引导列冗余元件来替换有缺陷的列元素。 根据是否正在执行读取或写入操作,冗余信息是从SRAM熔丝数据存储设备提供的,或者从TAG存储设备提供的。 集成冗余eDRAM架构系统使数据能够从eDRAM宏系统发送和接收数据,而不会对数据流增加任何额外的延迟,从而保护数据流模式的完整性。
    • 58. 发明授权
    • Self-refresh on-chip voltage generator
    • 自刷新片上电压发生器
    • US06411157B1
    • 2002-06-25
    • US09606650
    • 2000-06-29
    • Louis L. HsuLi-Kong Wang
    • Louis L. HsuLi-Kong Wang
    • G05F302
    • G11C11/4074G11C11/406G11C11/4076G11C2207/2227G11C2211/4067H02M3/073
    • A voltage control system and methodology for maintaining internally generated voltage levels in a semiconductor chip. The method comprises the steps of intermittently sampling an internal voltage supply level during a low power or “sleep” mode of operation; comparing the internal voltage supply level against a predetermined voltage reference level; and, activating a voltage supply generator for increasing the internal voltage supply level when the internal voltage supply level falls below the predetermined voltage reference level. The voltage supply generator is subsequently deactivated when the voltage supply level is restored to the predetermined voltage reference level. The sampling cycle may be appropriately tailored according to chip condition, chip temperature, and chip size. In one embodiment, the voltage control system and methodology is implemented in DRAM circuits during a refresh operation. The voltage levels that are suitable for sampling including DRAM band-gap reference voltage, boost wordline line voltage, wordline low voltage, bitline high voltage and bitline equalization voltages.
    • 一种用于维持半导体芯片内部产生的电压电平的电压控制系统和方法。 该方法包括以下步骤:在低功率或“睡眠”操作模式期间间歇地采样内部电压供应电平; 将内部电压供应电平与预定电压参考电平进行比较; 以及当所述内部电压供应电平低于所述预定电压参考电平时激活用于增加所述内部电压供应电平的电压源发生器。 当电压供应电平恢复到预定电压参考电平时,电压发生器随后被去激活。 采样周期可以根据芯片条件,芯片温度和芯片尺寸进行适当调整。 在一个实施例中,电压控制系统和方法在刷新操作期间在DRAM电路中实现。 适用于采样的电压电平,包括DRAM带隙参考电压,升压字线电压,字线低电压,位线高电压和位线均衡电压。