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    • 1. 发明授权
    • USB integrated module
    • USB集成模块
    • US07502883B2
    • 2009-03-10
    • US10625580
    • 2003-07-23
    • Daniel Kenneth LuneckiDouglas R. Holberg
    • Daniel Kenneth LuneckiDouglas R. Holberg
    • G06F13/14
    • H01R13/665H01R31/06
    • USB integrated module. A modularized serial data module is disclosed for interfacing with a serial data line operating in accordance with a first serial data protocol that transmits/receives data and also provides power to the modularized serial data module. The module includes a connector housing for providing a physical interface with the serial data line. A processor housing is disposed adjacent the connector housing and operable to interface therewith. A processor is disposed within the processor housing and operable to be powered by the serial data line through the connector housing and is also operable to interface with the data portion of the serial data line through the connector housing. The processor is operable to provide processing of information based upon data received from the serial data line through the connector housing or processing of information for transmission to the serial data line through the connector housing.
    • USB集成模块。 公开了一种模块化串行数据模块,用于与根据发送/接收数据的第一串行数据协议操作的串行数据线进行接口,并且还向模块化的串行数据模块提供电力。 该模块包括用于提供与串行数据线的物理接口的连接器壳体。 处理器壳体邻近连接器壳体设置并且可操作以与其连接。 处理器设置在处理器壳体内并且可操作以通过连接器壳体由串行数据线供电,并且还可操作以通过连接器壳体与串行数据线的数据部分进行接口。 处理器可操作以基于通过连接器壳体从串行数据线接收的数据或处理用于通过连接器壳体传输到串行数据线的信息来提供信息的处理。
    • 3. 发明授权
    • High voltage difference amplifier with spark gap ESD protection
    • 高电压差放大器具有火花隙ESD保护
    • US06879004B2
    • 2005-04-12
    • US10288188
    • 2002-11-05
    • Ka Y. LeungDouglas R. Holberg
    • Ka Y. LeungDouglas R. Holberg
    • H01L23/62
    • H01L23/62H01L2924/0002H01L2924/00
    • A spark gap device for protecting an integrated circuit. The spark gap device includes a first node for receiving an input signal and a second node to be protected. A first conductive layer is conductively interfaced to the first node and the second node and disposed therebetween. A second conductive layer is connected to a sink voltage and separated from the first conductive layer by an insulating layer of a predetermined thickness. A portion of the first conductive layer is disposed proximate to the second conductive layer and not overlying the second conductive layer, such that a gap is formed therebetween and the gap having a dimension that is greater than the thickness of the insulating layer.
    • 一种用于保护集成电路的火花隙装置。 火花隙装置包括用于接收输入信号的第一节点和待保护的第二节点。 第一导电层导电地接合到第一节点和第二节点并且设置在它们之间。 第二导电层连接到宿电压,并通过预定厚度的绝缘层与第一导电层分离。 第一导电层的一部分设置成靠近第二导电层并且不覆盖第二导电层,使得在其间形成间隙,并且间隙的尺寸大于绝缘层的厚度。
    • 5. 发明授权
    • A/D converter with voltage/charge scaling
    • 具有电压/电荷缩放的A / D转换器
    • US06288661B1
    • 2001-09-11
    • US09419148
    • 1999-10-15
    • Douglas R. Holberg
    • Douglas R. Holberg
    • H03M166
    • H03M1/682H03M1/46H03M1/765
    • An analog-to-digital converter having a digital-to-analog converter section for converting a Z-bit digital word. The digital-to-analog converter section includes an MSB portion for receiving a predetermined portion of the upper most significant bits, M bits, of the digital word and providing a monotonic division, VINC, of a reference voltage to provide a first analog voltage. A SubDAC portion is provided for receiving the remaining portion of the digital word, N bits, and providing a monotonic division of the voltage VINC to provide a second analog voltage. A summing device sums the first analog voltage with the second analog voltage to provide an analog output voltage with an M+N bit resolution, Z=M+N.
    • 一种具有用于转换Z位数字字的数模转换器部分的模数转换器。 数模转换器部分包括MSB部分,用于接收数字字的最高有效位M位的预定部分,并提供参考电压的单调除法VINC以提供第一模拟电压。 提供SubDAC部分用于接收数字字的剩余部分N位,并且提供电压VINC的单调除法以提供第二模拟电压。 求和装置将第一模拟电压与第二模拟电压相加,以提供具有M + N位分辨率的模拟输出电压,Z = M + N。
    • 8. 发明授权
    • Digital pulse width modulated power supply with variable LSB
    • 数字脉宽调制电源,可变LSB
    • US07323855B2
    • 2008-01-29
    • US11095844
    • 2005-03-31
    • Jinwen XiaoKa Y. LeungDouglas R. Holberg
    • Jinwen XiaoKa Y. LeungDouglas R. Holberg
    • G05F1/46G05F1/62
    • H02M3/33515H02M3/33576H02M2001/0012
    • A DC-DC digital pulse width modulated power supply is disclosed for generating a DC regulated output voltage. A digital control node has a digital control voltage disposed thereon for controlling the operation of the supply, wherein the digital control voltage has a substantially zero voltage when the output voltage of the supply is at a desired regulation, the digital control voltage having a resolution defined by a least significant bit (LSB). An input node receives a DC analog reference voltage defining the output voltage of the supply. A difference device determines the difference between the analog reference voltage and the output voltage to generate said digital control voltage. An LSB variation device varies the size of the LSB without varying the value of the digital control voltage for a substantially zero difference between the analog reference voltage and the output voltage.
    • 公开了用于产生直流调节输出电压的DC-DC数字脉宽调制电源。 数字控制节点具有设置在其上用于控制电源的操作的数字控制电压,其中当电源的输出电压处于期望的调节时,数字控制电压具有基本为零的电压,数字控制电压具有定义的分辨率 通过最低有效位(LSB)。 输入节点接收限定电源的输出电压的DC模拟参考电压。 差分装置确定模拟参考电压和输出电压之间的差异,以产生所述数字控制电压。 LSB变化装置改变LSB的大小,而不改变模拟参考电压和输出电压之间的基本上零差的数字控制电压的值。
    • 9. 发明授权
    • Preview mode low resolution output system and method
    • 预览模式低分辨率输出系统和方法
    • US07304679B1
    • 2007-12-04
    • US10742170
    • 2003-12-19
    • Sandra M. JohnsonDouglas R. HolbergNadi R. Itani
    • Sandra M. JohnsonDouglas R. HolbergNadi R. Itani
    • H04N5/222H04N5/235H04N5/20H03M1/12
    • H03M1/002H03M1/007H03M1/12H04N5/232H04N5/23245
    • A processing system for a charge coupled device (CCD) or CMOS imaging system includes a correlated double sample (CDS) circuit for receiving data from an imager, a variable gain amplifier (VGA) having amplifiers of selectable current level to enable reduced data resolution in a preview display, a low power mode analog-to-digital converter (ADC) having a selectable narrow bit-width output and coupled to said VGA circuit, and a gain circuit coupled to said ADC. The single chip low-power analog front end produces digitized CCD data in either 13-bit, 12-bit or 10-bit formats at a first current level and 9-bit, 8-bit, or 6-bit formats at a second current level. The VGA amplifier includes symmetrical subcircuits which are independently actuable to enable full or reduced data resolution levels respectively for still image capture operation and video previewing on a separate preview screen.
    • 用于电荷耦合器件(CCD)或CMOS成像系统的处理系统包括用于从成像器接收数据的相关双样本(CDS)电路,具有可选电流电平的放大器的可变增益放大器(VGA),以使数据分辨率降低 预览显示器,具有可选择的窄位宽输出并耦合到所述VGA电路的低功率模式模数转换器(ADC)以及耦合到所述ADC的增益电路。 单芯片低功耗模拟前端以第一电流电平以13位,12位或10位格式生成数字化CCD数据,并以第二个电流产生9位,8位或6位格式 水平。 VGA放大器包括对称的子电路,它们独立地可启动,以分别在单独的预览屏幕上实现静态图像捕获操作和视频预览的全部或者简化的数据分辨率级别。
    • 10. 发明授权
    • Capacitor calibration in SAR converter
    • SAR转换器中的电容校准
    • US06891487B2
    • 2005-05-10
    • US10752913
    • 2004-01-07
    • Ka Y. LeungDouglas R. HolbergKafai Leung
    • Ka Y. LeungDouglas R. HolbergKafai Leung
    • G06F13/28H01C10/16H03M1/06H03M1/10H03M1/12H03M1/34H03M1/38H03M1/46H03M1/66H03M1/78
    • H03M1/1057H03M1/468
    • Capacitor calibration in SAR converter. A method for calibrating a switched capacitor array in a SAR data converter is disclosed, which array includes a plurality of primary capacitors having a common node plate interfaced to a common node and a switched plate interfaced to a switch that is operable to be switched between first and second reference voltages. A comparator having an input connected to the common node and a reference input connected to a comparator reference node receives a comparator reference voltage. In a first calibration step for calibrating one of the primary capacitors, a reference capacitor is provided and then, the switched plate of the select primary capacitor is connected to the first reference voltage, the switched plate of the other capacitors and the reference capacitor are connected to the second reference voltage, and the common node and the comparator reference node are driven with a driver to dispose a first voltage thereon. In a second calibration step, the common node is allowed to float, the switched plate of the select primary capacitor is connected to the second reference voltage, the switched plate of the reference capacitor is connected to the first reference voltage, and the voltage on the common node is compared to the first voltage on the comparator reference node. A determination is then made as to whether the voltage on the common node is greater than the first voltage. A plurality of trim capacitors are provided and, if in the second calibration step, the voltage on the common node was determined to be greater than the first voltage, then one of the trim capacitors is disposed in parallel with the select one of the primary capacitors and then the first and second calibrating steps are repeated.
    • SAR转换器中的电容校准。 公开了一种用于校准SAR数据转换器中的开关电容器阵列的方法,该阵列包括具有与公共节点接口的公共节点板的多个初级电容器和与开关接口的开关板,该开关板可操作以在第一 和第二参考电压。 具有连接到公共节点的输入和连接到比较器参考节点的参考输入的比较器接收比较器参考电压。 在用于校准主电容器之一的第一校准步骤中,提供参考电容器,然后,选择一次电容器的开关板连接到第一参考电压,另一电容器的开关板和参考电容器连接 到第二参考电压,并且公共节点和比较器参考节点由驱动器驱动以在其上设置第一电压。 在第二校准步骤中,允许公共节点浮动,选择主电容器的开关板连接到第二参考电压,参考电容器的开关板连接到第一参考电压,并且在 公共节点与比较器参考节点上的第一个电压进行比较。 然后确定公共节点上的电压是否大于第一电压。 提供多个修整电容器,如果在第二校准步骤中,将公共节点上的电压确定为大于第一电压,则将一个修整电容器与主电容器中的选择一个平行设置 然后重复第一和第二校准步骤。