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公开(公告)号：US20130208126A1
公开(公告)日：2013-08-15
申请号：US13732012
申请日：2012-12-31
IPC分类号： H04N5/232
CPC分类号： H04N5/23296 , G06K9/58 , G06K9/60 , G06T7/44 , G06T2200/28 , H01L27/14601
摘要： An apparatus and method for providing image primitives, such as edge polarity, edge magnitude, edge orientation, and edge displacement, and derivatives thereof, for an object are described. The data are obtained substantially simultaneously and processed in parallel such that multiple objects can be distinguished from one another in real time.
摘要翻译： 描述了一种用于为物体提供诸如边缘极性，边缘幅度，边缘取向和边缘位移及其派生的图像原语的装置和方法。 基本上同时获得数据并且并行处理，使得可以实时地将多个对象彼此区分开。
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公开(公告)号：US20100019945A1
公开(公告)日：2010-01-28
申请号：US12098357
申请日：2008-04-04
IPC分类号： H03M1/66
CPC分类号： H03M1/0665 , H03M1/74 , H03M3/456 , H03M3/464
摘要： The management of unit element selections in a system that includes multiple unit elements. The system includes an element selection component that is configured so that each of the multiple elements is used the same number of times over a certain number of selection cycles. This preserves the first order noise shaping of the mismatch noise thereby keeping a high signal to noise ratio. In addition, the selection of the unit elements is not done in a periodic fashion. This allows the system to avoid tones within the signal band.
摘要翻译： 在包含多个单元元素的系统中管理单元元素选择。 该系统包括元件选择部件，其被配置为使得在多个选择周期中使用多个元件中的每个元件相同次数。 这保持了失配噪声的一阶噪声整形，从而保持了较高的信噪比。 此外，单位元素的选择不是以周期性方式进行的。 这允许系统避免信号频带内的音调。
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公开(公告)号：US08344342B2
公开(公告)日：2013-01-01
申请号：US11150478
申请日：2005-06-11
IPC分类号： G01V8/00
CPC分类号： H04N5/23296 , G06K9/58 , G06K9/60 , G06T7/44 , G06T2200/28 , H01L27/14601
摘要： An apparatus and method for providing image primitives, such as edge polarity, edge magnitude, edge orientation, and edge displacement, and derivatives thereof, for an object are described. The data are obtained substantially simultaneously and processed in parallel such that multiple objects can be distinguished from one another in real time.
摘要翻译： 描述了一种用于为物体提供诸如边缘极性，边缘幅度，边缘取向和边缘位移及其派生的图像原语的装置和方法。 基本上同时获得数据并且并行处理，使得可以实时地将多个对象彼此区分开。
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公开(公告)号：US07663523B1
公开(公告)日：2010-02-16
申请号：US12098357
申请日：2008-04-04
IPC分类号： H03M1/66
CPC分类号： H03M1/0665 , H03M1/74 , H03M3/456 , H03M3/464
摘要： The management of unit element selections in a system that includes multiple unit elements. The system includes an element selection component that is configured so that each of the multiple elements is used the same number of times over a certain number of selection cycles. This preserves the first order noise shaping of the mismatch noise thereby keeping a high signal to noise ratio. In addition, the selection of the unit elements is not done in a periodic fashion. This allows the system to avoid tones within the signal band.
摘要翻译： 在包含多个单元元素的系统中管理单元元素选择。 该系统包括元件选择部件，其被配置为使得在多个选择周期中使用多个元件中的每个元件相同次数。 这保持了失配噪声的一阶噪声整形，从而保持了较高的信噪比。 此外，单位元素的选择不是以周期性方式进行的。 这允许系统避免信号频带内的音调。
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5.发明授权Microelectromechanical accelerometer with resonance-cancelling control circuit including an idle state 有权具有共振消除控制电路的微机电加速度计包括空闲状态公开(公告)号：US06301965B1
公开(公告)日：2001-10-16
申请号：US09461062
申请日：1999-12-14
IPC分类号： G01P1513
CPC分类号： G01P15/131 , H03H19/004
摘要： A digital feedback control circuit is disclosed for use in an accelerometer (e.g. a microelectromechanical accelerometer). The digital feedback control circuit, which periodically re-centers a proof mass in response to a sensed acceleration, is based on a sigma-delta (&Sgr;&Dgr;) configuration that includes a notch filter (e.g. a digital switched-capacitor filter) for rejecting signals due to mechanical resonances of the proof mass and further includes a comparator (e.g. a three-level comparator). The comparator generates one of three possible feedback states, with two of the feedback states acting to re-center the proof mass when that is needed, and with a third feedback state being an “idle” state which does not act to move the proof mass when no re-centering is needed. Additionally, the digital feedback control system includes an auto-zero trim capability for calibration of the accelerometer for accurate sensing of acceleration. The digital feedback control circuit can be fabricated using complementary metal-oxide semiconductor (CMOS) technology, bi-CMOS technology or bipolar technology and used in single- and dual-proof-mass accelerometers.
摘要翻译： 公开了用于加速度计（例如，微机电加速度计）中的数字反馈控制电路。 数字反馈控制电路，其周期性地使检测质量响应感测的加速度居中，基于Σ-Δ（SIGMADELTA）配置，该配置包括陷波滤波器（例如，数字开关电容滤波器），用于拒绝信号 到质量块的机械共振，并且还包括比较器（例如三电平比较器）。 比较器产生三种可能的反馈状态中的一种，其中两个反馈状态用于在需要时使检测质量重新中心，并且第三反馈状态是“空转”状态，其不起作用以移动检验质量 当不需要重新定心时。 此外，数字反馈控制系统包括用于加速度计校准的自动调零能力，用于精确地检测加速度。 数字反馈控制电路可以使用互补金属氧化物半导体（CMOS）技术，双CMOS技术或双极技术制造，并用于单质量和双质量加速度计。
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公开(公告)号：US5231316A
公开(公告)日：1993-07-27
申请号：US853453
申请日：1992-03-17
IPC分类号： H03F1/30
CPC分类号： H03F1/301
摘要： A voltage to current converter circuit is provided which outputs a constant current independent of temperature. The temperature coefficient of a first on-chip impedance network is canceled by a threshold voltage of a transistor which has a temperature coefficient that tracks the temperature coefficient of the first impedance network. The magnitude of the output current is adjustable using the first impedance network, and does not affect the temperature coefficient. A second impedance network effectively zeros out the temperature coefficient of the circuit by adjusting an input reference voltage assumed to have a first order temperature coefficient.
摘要翻译： 提供电压 - 电流转换器电路，其输出独立于温度的恒定电流。 第一片上阻抗网络的温度系数由具有跟踪第一阻抗网络的温度系数的温度系数的晶体管的阈值电压抵消。 输出电流的大小可以使用第一阻抗网络进行调整，不影响温度系数。 第二阻抗网络通过调整假定具有一阶温度系数的输入参考电压来有效地消除电路的温度系数。
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公开(公告)号：US5231315A
公开(公告)日：1993-07-27
申请号：US785443
申请日：1991-10-29
IPC分类号： H03F1/30
CPC分类号： H03F1/301
摘要： A voltage to current converter circuit is provided which outputs a constant current independent of temperature. The temperature coefficient of a first onchip impedance network is canceled by a threshold voltage of a transistor which has a temperature coefficient that tracks the temperature coefficient of the first impedance network. The magnitude of the output current is adjustable using the first impedance network, and does not affect the temperature coefficient. A second impedance network effectively zeros out the temperature coefficient of the circuit by adjusting an input reference voltage assumed to be constant. Furthermore, the present invention uses no bipolar transistors or diodes.
摘要翻译： 提供电压 - 电流转换器电路，其输出独立于温度的恒定电流。 第一片上阻抗网络的温度系数由具有跟踪第一阻抗网络的温度系数的温度系数的晶体管的阈值电压抵消。 输出电流的大小可以使用第一阻抗网络进行调整，不影响温度系数。 第二阻抗网络通过调整假设为恒定的输入参考电压来有效地排除电路的温度系数。 此外，本发明不使用双极晶体管或二极管。
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公开(公告)号：US5793230A
公开(公告)日：1998-08-11
申请号：US806950
申请日：1997-02-26
CPC分类号： H03K5/007 , G01N27/4148 , H03F3/087 , H03K5/08 , H03K5/2481
摘要： A sensor readout detector circuit is disclosed that is capable of detecting sensor signals down to a few nanoamperes or less in a high (microampere) background noise level. The circuit operates at a very low standby power level and is triggerable by a sensor event signal that is above a predetermined threshold level. A plurality of sensor readout detector circuits can be formed on a substrate as an integrated circuit (IC). These circuits can operate to process data from an array of sensors in parallel, with only data from active sensors being processed for digitization and analysis. This allows the IC to operate at a low power level with a high data throughput for the active sensors. The circuit may be used with many different types of sensors, including photodetectors, capacitance sensors, chemically-sensitive sensors or combinations thereof to provide a capability for recording transient events or for recording data for a predetermined period of time following an event trigger. The sensor readout detector circuit has applications for portable or satellite-based sensor systems.
摘要翻译： 公开了一种传感器读出检测器电路，其能够在高（微安）背景噪声水平下检测低达几纳秒或更少的传感器信号。 电路工作在非常低的待机功率电平，并且可以由高于预定阈值电平的传感器事件信号触发。 可以在作为集成电路（IC）的基板上形成多个传感器读出检测器电路。 这些电路可以并行处理来自传感器阵列的数据，只有来自有源传感器的数据被处理才能进行数字化和分析。 这允许IC以低功率水平运行，对于有源传感器具有高数据吞吐量。 该电路可以与许多不同类型的传感器一起使用，包括光电检测器，电容传感器，化学敏感传感器或其组合，以提供用于记录瞬态事件的能力或者用于在事件触发之后的预定时间段内记录数据。 传感器读出检测器电路具有便携式或基于卫星的传感器系统的应用。
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9.发明授权Tunable voltage reference circuit to provide an output voltage with a predetermined temperature coefficient independent of variation in supply voltage 失效可调电压参考电路，以提供具有独立于电源电压变化的预定温度系数的输出电压
公开(公告)号：US5281906A
公开(公告)日：1994-01-25
申请号：US785442
申请日：1991-10-29
IPC分类号： G05F3/24
CPC分类号： G05F3/247 , G05F3/245 , Y10S323/907
摘要： A voltage reference circuit for providing a predetermined reference voltage at an output terminal which is independent of variation in supply voltage. The voltage reference circuit includes first and second semiconductor elements coupled between supply voltage terminals of a power supply, with the first and second semiconductor elements being connected in series with first and second impedances. The reference voltage is provided at the common terminal of the first and second impedances. The temperature coefficient of voltages produced by the first and second semiconductor elements in combination with the first and second impedances provide a reference voltage with a predetermined temperature coefficient. A tuning circuit is also included to permit fine adjustment of voltage level changes due to process variations.
摘要翻译： 一种用于在输出端提供与电源电压变化无关的预定参考电压的电压参考电路。 电压参考电路包括耦合在电源的电源电压端之间的第一和第二半导体元件，第一和第二半导体元件与第一和第二阻抗串联连接。 参考电压设置在第一和第二阻抗的公共端。 由第一和第二半导体元件与第一和第二阻抗组合产生的电压的温度系数提供具有预定温度系数的参考电压。 还包括调谐电路，以允许由于过程变化而精细调整电压电平变化。
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