Operational transconductance amplifier (OTA)
    1.
    发明授权
    Operational transconductance amplifier (OTA) 有权
    运算跨导放大器(OTA)

    公开(公告)号:US07786803B2

    公开(公告)日:2010-08-31

    申请号:US12463685

    申请日:2009-05-11

    IPC分类号: H03F3/45

    摘要: Apparatus and methods provide an operational transconductance amplifier (OTA) with one or more self-biased cascode current mirrors. Applicable topologies include a current-mirror OTA and a folded-cascode OTA. In one embodiment, the self-biasing cascode current mirror is an optional aspect of the folded-cascode OTA. The self-biasing can advantageous reduce the number of biasing circuits used, which can save chip area and cost. One embodiment includes an input differential pair of a current-mirror OTA.

    摘要翻译: 装置和方法提供具有一个或多个自偏置共源共栅电流镜的工作跨导放大器(OTA)。 适用的拓扑结构包括电流镜OTA和折叠共源共栅OTA。 在一个实施例中,自偏压共源共栅电流镜是折叠共源共栅OTA的可选方面。 自偏置有利于减少使用的偏置电路的数量,这可以节省芯片面积和成本。 一个实施例包括电流镜OTA的输入差分对。

    OPERATIONAL TRANSCONDUCTANCE AMPLIFIER (OTA)
    2.
    发明申请
    OPERATIONAL TRANSCONDUCTANCE AMPLIFIER (OTA) 有权
    操作性交叉放大器(OTA)

    公开(公告)号:US20080272845A1

    公开(公告)日:2008-11-06

    申请号:US11743503

    申请日:2007-05-02

    IPC分类号: H03F3/45

    摘要: Apparatus and methods provide an operational transconductance amplifier (OTA) with one or more self-biased cascode current mirrors. Applicable topologies include a current-mirror OTA and a folded-cascode OTA. In one embodiment, the self-biasing cascode current mirror is an optional aspect of the folded-cascode OTA. The self-biasing can advantageous reduce the number of biasing circuits used, which can save chip area and cost. One embodiment includes an input differential pair of a current-mirror OTA.

    摘要翻译: 装置和方法提供具有一个或多个自偏置共源共栅电流镜的工作跨导放大器(OTA)。 适用的拓扑结构包括电流镜OTA和折叠共源共栅OTA。 在一个实施例中,自偏压共源共栅电流镜是折叠共源共栅OTA的可选方面。 自偏置有利于减少使用的偏置电路的数量,这可以节省芯片面积和成本。 一个实施例包括电流镜OTA的输入差分对。

    OPERATIONAL TRANSCONDUCTANCE AMPLIFIER (OTA)
    3.
    发明申请
    OPERATIONAL TRANSCONDUCTANCE AMPLIFIER (OTA) 有权
    操作性交叉放大器(OTA)

    公开(公告)号:US20090219095A1

    公开(公告)日:2009-09-03

    申请号:US12463685

    申请日:2009-05-11

    IPC分类号: H03F3/45

    摘要: Apparatus and methods provide an operational transconductance amplifier (OTA) with one or more self-biased cascode current mirrors. Applicable topologies include a current-mirror OTA and a folded-cascode OTA. In one embodiment, the self-biasing cascode current mirror is an optional aspect of the folded-cascode OTA. The self-biasing can advantageous reduce the number of biasing circuits used, which can save chip area and cost. One embodiment includes an input differential pair of a current-mirror OTA.

    摘要翻译: 装置和方法提供具有一个或多个自偏置共源共栅电流镜的工作跨导放大器(OTA)。 适用的拓扑结构包括电流镜OTA和折叠共源共栅OTA。 在一个实施例中,自偏压共源共栅电流镜是折叠共源共栅OTA的可选方面。 自偏置有利于减少使用的偏置电路的数量,这可以节省芯片面积和成本。 一个实施例包括电流镜OTA的输入差分对。

    Operational transconductance amplifier (OTA)
    4.
    发明授权
    Operational transconductance amplifier (OTA) 有权
    运算跨导放大器(OTA)

    公开(公告)号:US07541871B2

    公开(公告)日:2009-06-02

    申请号:US11743503

    申请日:2007-05-02

    IPC分类号: H03F3/45

    摘要: Apparatus and methods provide an operational transconductance amplifier (OTA) with one or more self-biased cascode current mirrors. Applicable topologies include a current-mirror OTA and a folded-cascode OTA. In one embodiment, the self-biasing cascode current mirror is an optional aspect of the folded-cascode OTA. The self-biasing can advantageous reduce the number of biasing circuits used, which can save chip area and cost. One embodiment includes an input differential pair of a current-mirror OTA.

    摘要翻译: 装置和方法提供具有一个或多个自偏置共源共栅电流镜的工作跨导放大器(OTA)。 适用的拓扑结构包括电流镜OTA和折叠共源共栅OTA。 在一个实施例中,自偏压共源共栅电流镜是折叠共源共栅OTA的可选方面。 自偏置有利于减少使用的偏置电路的数量,这可以节省芯片面积和成本。 一个实施例包括电流镜OTA的输入差分对。

    Dual conversion gain pixel methods, systems, and apparatus
    5.
    发明授权
    Dual conversion gain pixel methods, systems, and apparatus 有权
    双转换增益像素方法,系统和装置

    公开(公告)号:US08604407B2

    公开(公告)日:2013-12-10

    申请号:US13175103

    申请日:2011-07-01

    申请人: Trygve Willassen

    发明人: Trygve Willassen

    IPC分类号: H01L27/00 H04N3/14

    摘要: Dual conversion gain pixel methods, system, and apparatus are disclosed. Dual conversion gain may be obtained by configuring an active pixel having a storage node, a first connection region, a second connection region, and a capacitor coupled between the storage node and the second connection region to introduce a first conversion gain by connecting the first connection region to a power source and connecting the second connection region to a current bias source and reconfiguring the active pixel to introduce a second conversion gain by connecting the second connection region to the power source and connecting the first connection region to the current bias source.

    摘要翻译: 公开了双转换增益像素方法,系统和装置。 双转换增益可以通过配置具有存储节点,第一连接区域,第二连接区域和耦合在存储节点和第二连接区域之间的电容器的有源像素来获得,以通过连接第一连接来引入第一转换增益 区域连接到电源并且将第二连接区域连接到电流偏置源并且重新配置有源像素以通过将第二连接区域连接到电源并将第一连接区域连接到电流偏置源来引入第二转换增益。

    Suppression of Row-Wise Noise in CMOS Image Sensors
    6.
    发明申请
    Suppression of Row-Wise Noise in CMOS Image Sensors 有权
    抑制CMOS图像传感器中的行亮噪声

    公开(公告)号:US20100053379A1

    公开(公告)日:2010-03-04

    申请号:US11795274

    申请日:2007-05-21

    申请人: Trygve Willassen

    发明人: Trygve Willassen

    IPC分类号: H04N5/217

    摘要: Embodiments of circuits and methods for suppressing row-wise noise in the analog domain in an image sensing device. In one embodiment, a pixel sampling circuit includes a readout circuit that is connected to a plurality of pixels to receive analog signals from the pixels. The pixel sampling circuit also includes a noise correction circuit that provides a reference signal to remove at least a portion of the noise in the analog signals received from the pixels before the analog signals are converted into digital signals.

    摘要翻译: 用于抑制图像感测装置中的模拟域中的行方向噪声的电路和方法的实施例。 在一个实施例中,像素采样电路包括连接到多个像素以从像素接收模拟信号的读出电路。 像素采样电路还包括噪声校正电路,该噪声校正电路提供参考信号以去除在将模拟信号转换成数字信号之前从像素接收的模拟信号中的噪声的至少一部分。

    IMAGER COLUMN-LEVEL AMPLIFIER WITH PIXEL-WISE AUTOMATIC GAIN SELECTION
    7.
    发明申请
    IMAGER COLUMN-LEVEL AMPLIFIER WITH PIXEL-WISE AUTOMATIC GAIN SELECTION 有权
    具有像素自动增益选择的图像柱级放大器

    公开(公告)号:US20100097371A1

    公开(公告)日:2010-04-22

    申请号:US12252646

    申请日:2008-10-16

    申请人: Trygve Willassen

    发明人: Trygve Willassen

    IPC分类号: G06F3/038

    CPC分类号: H04N5/378

    摘要: An imager architecture that utilizes column sampling circuitry that can support pixel-wise automatic gain selection (AGS). The column sampling circuitry samples the pixel output signals directly (e.g., with unity gain) or after amplification in a column level amplifier while supporting correlated double sampling (CDS) in both situations.

    摘要翻译: 利用能够支持像素自动增益选择(AGS)的列采样电路的成像器架构。 列采样电路在列级放大器中直接(例如,具有单位增益)或放大后对像素输出信号进行采样,同时支持两种情况下的相关双采样(CDS)。

    Memory device, circuits and methods for reading a memory device
    8.
    发明授权
    Memory device, circuits and methods for reading a memory device 有权
    用于读取存储器件的存储器件,电路和方法

    公开(公告)号:US07532498B2

    公开(公告)日:2009-05-12

    申请号:US11561972

    申请日:2006-11-21

    IPC分类号: G11C11/22

    CPC分类号: G11C11/22

    摘要: A ferroelectric memory comprises a plurality of memory cells and circuitry to sense data thereof. Power supply decoupling circuitry may decouple supplies of the memory device during a portion of reading data. Additionally, ferroelectric domains of the memory cells may receive a series of polarization reversals to improve domain alignment and malleability. To drive reference cells of the memory with such polarization reversals, a multiplexer may be configured to swap a data bitline with a reference bitline so that reference cells may be accessed as regular data cells. While reading a ferroelectric memory, a self-timer circuit may monitor characteristics of the ferroelectric material and adjust an integration duration for a sense amplifier based on the monitored characteristics. A sampling-comparator may sample a signal related to the ferroelectric material at one instant, which may then be used subsequently thereafter by the self-timer circuit to influence an integration duration of the sense amplifier.

    摘要翻译: 铁电存储器包括多个存储器单元和用于感测其数据的电路。 在读取数据的一部分期间,电源去耦电路可以解耦存储器件的电源。 此外,存储器单元的铁电畴可以接收一系列极化反转以改善畴对准和延展性。 为了以这样的极化反转来驱动存储器的参考单元,可以将多路复用器配置成与参考位线交换数据位线,使得参考单元可以作为常规数据单元被访问。 在读取铁电存储器的同时,自拍定时器电路可以监测铁电材料的特性,并且基于所监视的特性来调整感测放大器的积分持续时间。 采样比较器可以在一瞬间对与铁电材料相关的信号进行采样,随后可以由自拍定时器电路使用该信号来影响读出放大器的积分持续时间。

    MEMORY DEVICE, CIRCUITS AND METHODS FOR READING A MEMORY DEVICE
    9.
    发明申请
    MEMORY DEVICE, CIRCUITS AND METHODS FOR READING A MEMORY DEVICE 有权
    用于读取存储器件的存储器件,电路和方法

    公开(公告)号:US20070091664A1

    公开(公告)日:2007-04-26

    申请号:US11561972

    申请日:2006-11-21

    IPC分类号: G11C11/22

    CPC分类号: G11C11/22

    摘要: A ferroelectric memory comprises a plurality of memory cells and circuitry to sense data thereof. Power supply decoupling circuitry may decouple supplies of the memory device during a portion of reading data. Additionally, ferroelectric domains of the memory cells may receive a series of polarization reversals to improve domain alignment and malleability. To drive reference cells of the memory with such polarization reversals, a multiplexer may be configured to swap a data bitline with a reference bitline so that reference cells may be accessed as regular data cells. While reading a ferroelectric memory, a self-timer circuit may monitor characteristics of the ferroelectric material and adjust an integration duration for a sense amplifier based on the monitored characteristics. A sampling-comparator may sample a signal related to the ferroelectric material at one instant, which may then be used subsequently thereafter by the self-timer circuit to influence an integration duration of the sense amplifier.

    摘要翻译: 铁电存储器包括多个存储器单元和用于感测其数据的电路。 在读取数据的一部分期间,电源去耦电路可以解耦存储器件的电源。 此外,存储器单元的铁电畴可以接收一系列极化反转以改善畴对准和延展性。 为了以这样的极化反转来驱动存储器的参考单元,可以将多路复用器配置成与参考位线交换数据位线,使得参考单元可以作为常规数据单元被访问。 在读取铁电存储器的同时,自拍定时器电路可以监测铁电材料的特性,并且基于所监视的特性来调整感测放大器的积分持续时间。 采样比较器可以在一瞬间对与铁电材料相关的信号进行采样,随后可以由自拍定时器电路使用该信号来影响读出放大器的积分持续时间。

    Method and apparatus for ambient light detection including plural image pixels and at least one dark pixel
    10.
    发明授权
    Method and apparatus for ambient light detection including plural image pixels and at least one dark pixel 有权
    包括多个图像像素和至少一个暗像素的环境光检测方法和装置

    公开(公告)号:US08723095B2

    公开(公告)日:2014-05-13

    申请号:US13398804

    申请日:2012-02-16

    IPC分类号: H01L27/00

    摘要: Electronic devices may be provided with image sensors. Image sensors may be configured to capture images during imaging operations and monitor ambient light levels during non-imaging operations. An image sensor may include image pixels that receive light and dark pixels that are prevented from receiving light. An image sensor may include an ambient light detection circuit. The ambient light detection circuit may include an oscillator, timing and control circuitry, and a counter. The oscillator may be switchably coupled to the image pixels and the dark pixels. The counter may be configured to count up oscillator cycles of the oscillator while the oscillator is coupled to the image pixels and to count down oscillator cycles of the oscillator while the oscillator is coupled to the dark pixels. The counter may provide a count value that depends on a signal from the image pixels and a signal from the dark pixels.

    摘要翻译: 电子设备可以设置有图像传感器。 图像传感器可以被配置为在成像操作期间捕获图像,并且在非成像操作期间监视环境光水平。 图像传感器可以包括接收被防止接收光的光和暗像素的图像像素。 图像传感器可以包括环境光检测电路。 环境光检测电路可以包括振荡器,定时和控制电路以及计数器。 振荡器可以可切换地耦合到图像像素和暗像素。 计数器可以被配置为在振荡器耦合到图像像素的同时对振荡器的振荡器周期进行计数,并且在振荡器耦合到暗像素的同时对振荡器的振荡器周期进行计数。 计数器可以提供取决于来自图像像素的信号和来自暗像素的信号的计数值。