中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

475 records (took 0.033 seconds)

    Secure OTP using external memory
    156.
    发明公开
    Secure OTP using external memory 审中-公开
    Gesichertes OTP mit externem Speicher

    公开(公告)号：EP1640844A1

    公开(公告)日：2006-03-29

    申请号：EP04255894.0

    申请日：2004-09-27

    Applicant: STMicroelectronics Limited

    Inventor： Dellow, Andrew

    IPC: G06F1/00

    CPC classification number: G06F21/79 ,  G11C16/22

    Abstract: An embodiment of the invention comprises a set-top-box in which on-chip OTP memory is emulated using an external flash memory and a series of on-chip fuses. The external memory is comprised of one or more region, each having its own unique region identification. Each on-chip fuse corresponds to one of the memory regions and comprises a component which can be caused to change to a particular (blown) state irreversibly. When data first needs to be written to a region of the external memory, the identification of that region is appended to the data itself together with a parity field and a validity field. The resultant data packet is then encrypted by a cryptographic circuit using a secret key unique to the set-top-box and the encrypted data packet is written to the specified region of the external memory. Then, the on-chip fuse corresponding to the region that has been written to is irreversibly blown, effectively locking that region. Any attempt to write data to regions for which the corresponding fuse has already been blown (indicating that data has already been written to that region) are blocked. When data is read from the external memory, the encrypted data is decrypted to retrieve the data, region identification, validity field and parity field. If the region identification, validity field and parity field are all verified as valid then the data is transmitted to the desired destination. Any attempts to read data from regions for which the corresponding fuse has not been blown (indicating that no data has yet been written to that region) are blocked.

    Abstract translation: 本发明的一个实施例包括一个机顶盒，其中使用外部闪速存储器和一系列片上保险丝来模拟片上OTP存储器。 外部存储器由一个或多个区域组成，每个区域具有其独特的区域标识。 每个片上保险丝对应于存储器区域中的一个，并且包括可以不可逆地改变为特定（吹制）状态的部件。 当数据首先需要写入外部存储器的区域时，该区域的标识与奇偶校验字段和有效性字段一起被附加到数据本身。 然后，使用机顶盒特有的秘密密钥，通过加密电路对结果数据包进行加密，并将加密的数据包写入外部存储器的指定区域。 然后，对应于已写入的区域的片上保险丝不可逆地吹制，有效地锁定该区域。 任何尝试将数据写入到对角的区域

    Method and apparatus for a CMOS image sensor comprising a distributed amplifier and a multiplexed analog to digital converter
    157.
    发明公开
    Method and apparatus for a CMOS image sensor comprising a distributed amplifier and a multiplexed analog to digital converter 审中-公开
    方法和用于Vorrichtunng CMOS图像传感器具有分布式放大器和多路复用模拟 - 数字转换器

    公开(公告)号：EP1635470A1

    公开(公告)日：2006-03-15

    申请号：EP04255476.6

    申请日：2004-09-09

    Applicant: STMicroelectronics Limited

    Inventor： Henderson, Robert ,  Purcell, Matthew

    IPC: H03M1/12 ,  H04N3/15

    CPC classification number: H03M1/1023 ,  H03M1/123 ,  H03M1/56 ,  H04N5/3575 ,  H04N5/361 ,  H04N5/3651 ,  H04N5/374 ,  H04N5/378

    Abstract: An image sensor is described, which makes use of a distributed amplifier (10). The distributed amplifier (10) has its non-inverting input (22) provided by a pixel amplifier transistor (18), and its inverting input (20) and output (30) provided in the pixel's column circuitry (58). The distributed amplifier (10) is directly integrated with the image sensor's ADC circuit, and sampling and autozero are performed in a single step, thus reducing the number of noise contributions made by the components of the image sensor's readout chain.

    Abstract translation: 一种图像传感器进行了说明，其利用分布式放大器（10）的。 分布式放大器（10）具有在像素的列电路（58）提供由像素放大器晶体管（18）提供其非反相输入端（22），它的反相输入端（20）和输出（30）。 分布式放大器（10）直接与所述图像传感器的ADC电路集成，并且采样和自动调零在单一步骤中进行，从而降低了由图像传感器的读出电路的组分制得噪声贡献的数量。

    Imaging assembly
    158.
    发明公开
    Imaging assembly 审中-公开
    Bildaufzeichnungskombination

    公开(公告)号：EP1626571A1

    公开(公告)日：2006-02-15

    申请号：EP04254868.5

    申请日：2004-08-13

    Applicant: STMicroelectronics Limited

    Inventor： Hurwitz, Jonathan Ephriam David ,  Findlay, Ewan

    IPC: H04N5/225 ,  H01L31/0232

    CPC classification number: G02B1/11 ,  G02B1/10 ,  G02B13/0025 ,  G02B13/006 ,  G02B13/18 ,  H01L31/0203 ,  H01L31/02162 ,  H01L31/0232 ,  H04N5/2254

    Abstract: An imaging assembly for an image sensor is disclosed comprising a lens, a transparent substrate and two aspheric optical coatings on each side of the substrate. The imaging assembly can also incorporate an opaque coating with an opening in-line with the lens to form an aperture, an anti-reflection coating and an infrared filter coating.

    Abstract translation: 公开了一种用于图像传感器的成像组件，其包括透镜，透明基板和在基板的每一侧上的两个非球面光学涂层。 成像组件还可以包括不透明涂层，其中开口与透镜成直角以形成孔，防反射涂层和红外滤光器涂层。

    Memory access
    159.
    发明公开
    Memory access 有权
    Speicherzugriff

    公开(公告)号：EP1619588A1

    公开(公告)日：2006-01-25

    申请号：EP04254362.9

    申请日：2004-07-21

    Applicant: STMicroelectronics Limited

    Inventor： Bennett, Peter

    IPC: G06F13/16 ,  G11C16/08

    CPC classification number: G06F13/1631 ,  G11C16/08

    Abstract: A memory access system comprising: a memory in which data is organised in pages, each page holding a sequence of data elements; means for receiving a requested address comprising a requested page address and a requested data element address; means for accessing a current page from the memory using a current page address; means for reading out data elements of the current page in the sequence in which they are held in memory; means for comparing the requested page address with the current page address and for issuing a memory access request with the requested page address when they are not the same; and means operable when the requested page address is the same as the current page address for comparing a requested data element address with the current address of a data element being read out and returning the data element when the requested data element address matches the current data element address.

    Abstract translation: 一种存储器访问系统，包括：存储器，其中以页面的形式组织数据，每个页面保存数据元素的序列; 用于接收包括请求的页面地址和所请求的数据元素地址的所请求的地址的装置; 用于使用当前页面地址从所述存储器访问当前页面的装置; 用于按照它们被保存在存储器中的顺序读出当前页面的数据元素的装置; 用于将请求的页面地址与当前页面地址进行比较并用于当它们不相同时发出具有所请求的页面地址的存储器访问请求的装置; 以及当所请求的页面地址与当前页面地址相同时可操作的装置，用于将所请求的数据元素地址与正被读出的数据元素的当前地址进行比较，并且当请求的数据元素地址与当前数据元素匹配时返回数据元素 地址。

    Improvements relating to computer navigation devices
    160.
    发明公开
    Improvements relating to computer navigation devices 审中-公开
    VerresserungenfürRechner-Navigationsgeräte

    公开(公告)号：EP1615112A1

    公开(公告)日：2006-01-11

    申请号：EP04254079.9

    申请日：2004-07-07

    Applicant: STMicroelectronics Limited ,  STMicroelectronics S.A.

    Inventor： Raynor, Jeffrey ,  Mellot, Pascal

    IPC: G06F3/033

    CPC classification number: G06F3/0317

    Abstract: An optical mouse has an image sensor (12) providing image data via an ADC (14) to a correlation circuit (16) and a motion estimation circuit (18) to provide output signals representative of mouse motion. The output signals are disabled when the mouse is lifted away from the working surface. This is achieved by summing each frame, after filtering in a high-pass filter (22), in a summer (26) to provide a single value, and comparing this with a threshold. If the filtered and summed value exceeds the threshold, this indicates that the image contains in-focus objects, and thus that the mouse is on the working surface.

    Abstract translation: 光学鼠标具有经由ADC（14）向相关电路（16）和运动估计电路（18）提供图像数据以提供代表鼠标运动的输出信号的图像传感器（12）。 当鼠标从工作表面抬起时，输出信号被禁用。 这通过在高通滤波器（22）中滤波之后，在夏季（26）中对每个帧求和以提供单个值，并将其与阈值进行比较来实现。 如果过滤和求和值超过阈值，则表示图像包含对焦对象，因此鼠标位于工作表面上。

Patent Agency Ranking