Circuit and method for pixel rearrangement in a digital pixel sensor readout
    1.
    发明授权
    Circuit and method for pixel rearrangement in a digital pixel sensor readout 有权
    数字像素传感器读数中像素重排的电路和方法

    公开(公告)号:US06831684B1

    公开(公告)日:2004-12-14

    申请号:US09638503

    申请日:2000-08-15

    IPC分类号: H04N5228

    摘要: An image sensor includes a sensor array, a data memory for storing pixel data and a pixel normalization circuit. The sensor array has a two-dimensional array of pixel elements and outputs digital signals as pixel data representing an image of a scene. The pixel data outputted by the sensor array are arranged in a sensor-bit arrangement and the pixel normalization circuit rearranges the pixel data into a pixel-bit order. In another embodiment, an image sensor includes a sensor array, a data memory, and a pixel normalization circuit, all fabricated on a single integrated circuit. The pixel normalization circuit includes one or more of a pixel rearrangement circuit, a Gray code to binary conversion circuit, a reset subtract circuit, and a multiple sampling normalization circuit. Finally, a Gray code to binary conversion circuit is provided for high speed conversion.

    摘要翻译: 图像传感器包括传感器阵列,用于存储像素数据的数据存储器和像素归一化电路。 传感器阵列具有像素元件的二维阵列,并输出数字信号作为表示场景图像的像素数据。 由传感器阵列输出的像素数据以传感器位排列方式排列,并且像素归一化电路将像素数据重排为像素位顺序。 在另一个实施例中,图像传感器包括传感器阵列,数据存储器和像素归一化电路,全部制造在单个集成电路上。 像素归一化电路包括像素重排电路,格雷码二进制转换电路,复位减法电路和多采样归一化电路中的一个或多个。 最后,提供了一个格雷码到二进制转换电路,用于高速转换。

    CMOS sensor array with a memory interface
    2.
    发明授权
    CMOS sensor array with a memory interface 有权
    CMOS传感器阵列具有存储器接口

    公开(公告)号:US06985181B2

    公开(公告)日:2006-01-10

    申请号:US09755910

    申请日:2001-01-03

    IPC分类号: H04N3/14

    摘要: An image sensor includes a sensor or a pixel array, a data memory, and a logic circuit, all fabricated on the same integrated chip. The sensor or pixel array outputs digital signals as pixel data representing an image of a scene. The data memory is coupled to the sensor or pixel array for storing the pixel data. The logic circuit is coupled to the data memory and provides a memory interface for exporting the pixel data. The memory interface can be one of a SRAM, a DRAM or a packet protocol synchronous DRAM interface. Including a memory interface in the image sensor allows the image sensor to be coupled directly to the memory interface port of an external image processing unit. The image processing unit can access the image sensor using conventional memory access protocols, thus improving the efficiency and reducing the operational complexity of the image processing unit.

    摘要翻译: 图像传感器包括传感器或像素阵列,数据存储器和逻辑电路,全部制造在同一集成芯片上。 传感器或像素阵列输出数字信号作为表示场景图像的像素数据。 数据存储器耦合到用于存储像素数据的传感器或像素阵列。 逻辑电路耦合到数据存储器并提供用于导出像素数据的存储器接口。 存储器接口可以是SRAM,DRAM或分组协议同步DRAM接口之一。 在图像传感器中包括存储器接口允许图像传感器直接耦合到外部图像处理单元的存储器接口端口。 图像处理单元可以使用传统的存储器访问协议访问图像传感器,从而提高图像处理单元的效率并降低操作复杂度。

    Digital image sensor with on -chip programmable logic
    3.
    发明授权
    Digital image sensor with on -chip programmable logic 有权
    具有片上可编程逻辑的数字图像传感器

    公开(公告)号:US06778212B1

    公开(公告)日:2004-08-17

    申请号:US09665523

    申请日:2000-09-19

    IPC分类号: H04N5228

    摘要: An image sensor, including a substrate having formed thereon by a CMOS process a digital sensor array having a plurality of digital pixel sensors which output analog signals corresponding to a desired image. The digital sensor array further includes supporting circuitry for converting the analog signals produced by the digital pixel sensors to digital signals corresponding to the desired image. Filter circuitry, for converting the digital signals to digital values representative of the light intensity impinging upon the plurality of digital pixel sensors, is also formed on the substrate using CMOS fabrication processes. Memory devices, including a data memory, a threshold memory, and a time index memory are formed on the substrate using CMOS fabrication techniques. A clock circuit is also formed on the substrate using CMOS fabrication processes. Programmable logic structures are formed on the substrate using CMOS fabrication processes. The programmable logic structure can be configured into a variety of circuitry or routing so as to facilitate customization or specialization of the image sensor.

    摘要翻译: 一种图像传感器,包括通过CMOS工艺在其上形成的基板的数字传感器阵列,该数字传感器阵列具有输出对应于期望图像的模拟信号的多个数字像素传感器。 数字传感器阵列还包括用于将由数字像素传感器产生的模拟信号转换成对应于期望图像的数字信号的支持电路。 用于将数字信号转换成表示在多个数字像素传感器上照射的光强度的数字值的滤波器电路也使用CMOS制造工艺形成在衬底上。 使用CMOS制造技术在衬底上形成包括数据存储器,阈值存储器和时间索引存储器的存储器件。 使用CMOS制造工艺也在衬底上形成时钟电路。 使用CMOS制造工艺在衬底上形成可编程逻辑结构。 可编程逻辑结构可以配置成各种电路或路由,以便于图像传感器的定制或专业化。

    TAG LOCATION, CLIENT LOCATION, AND COVERAGE HOLE LOCATION IN A WIRELESS NETWORK
    4.
    发明申请
    TAG LOCATION, CLIENT LOCATION, AND COVERAGE HOLE LOCATION IN A WIRELESS NETWORK 有权
    标签位置,客户位置和覆盖在无线网络中的位置

    公开(公告)号:US20070281714A1

    公开(公告)日:2007-12-06

    申请号:US11842549

    申请日:2007-08-21

    IPC分类号: H04Q7/20

    摘要: Determining the location of a radio tag or client station of a wireless network, and the location of coverage holes by receiving from a plurality of wireless stations of the wireless network path loss information of the path loss of one or more location frames received at the respective wireless stations. The location frames transmitted by the radio tag or client station having a pre-defined frame structure. The radio tags and client stations use a common infrastructure for transmitting a location frame configured for radiolocation by path loss measurement. The common infrastructure includes a pre-defined protocol common for both radio tags and client stations for transmitting information for reception by the plurality of stations of the wireless network for radiolocation. The pre-defined protocol includes using the location frame having the pre-defined frame structure.

    摘要翻译: 确定无线网络的无线电标签或客户站的位置,以及通过从多个无线站接收无线网络路径损失信息来确定无线网络的无线电标签或客户站的位置,以及在各个无线站点处接收到的一个或多个位置帧的路径损耗 无线电台。 由具有预定义帧结构的无线电标签或客户站发送的位置帧。 无线电标签和客户端站使用通用基础设施来发送通过路径损耗测量配置无线电定位的位置帧。 公共基础设施包括用于无线电标签和客户端站的公共的预定义协议,用于发送用于由用于无线电定位的无线网络的多个站点接收的信息。 预定义的协议包括使用具有预定义帧结构的位置帧。

    Tag location,client location, and coverage hole location in a wireless network
    5.
    发明申请
    Tag location,client location, and coverage hole location in a wireless network 有权
    无线网络中的标签位置,客户端位置和覆盖孔位置

    公开(公告)号:US20060075131A1

    公开(公告)日:2006-04-06

    申请号:US11286086

    申请日:2005-11-22

    IPC分类号: G06F15/16

    摘要: Determining the location of a radio tag or client station of a wireless network, and the location of coverage holes by receiving from a plurality of wireless stations of the wireless network path loss information of the path loss of one or more location frames received at the respective wireless stations. The location frames transmitted by the radio tag or client station having a pre-defined frame structure. The radio tags and client stations use a common infrastructure for transmitting a location frame configured for radiolocation by path loss measurement. The common infrastructure includes a pre-defined protocol common for both radio tags and client stations for transmitting information for reception by the plurality of stations of the wireless network for radiolocation. The pre-defined protocol includes using the location frame having the pre-defined frame structure.

    摘要翻译: 确定无线网络的无线电标签或客户站的位置,以及通过从多个无线站接收无线网络路径损失信息来确定无线网络的无线电标签或客户站的位置,以及在各个无线站点处接收到的一个或多个位置帧的路径损耗 无线电台。 由具有预定义帧结构的无线电标签或客户站发送的位置帧。 无线电标签和客户端站使用通用基础设施来发送通过路径损耗测量配置无线电定位的位置帧。 公共基础设施包括用于无线电标签和客户端站的公共的预定义协议,用于发送用于由用于无线电定位的无线网络的多个站点接收的信息。 预定义的协议包括使用具有预定义帧结构的位置帧。