Apparatus to implement dual hash algorithm
    281.
    发明授权
    Apparatus to implement dual hash algorithm 有权
    实现双重散列算法的装置

    公开(公告)号:US07649990B2

    公开(公告)日:2010-01-19

    申请号:US10531843

    申请日:2002-10-21

    CPC classification number: H04L9/0643 H04L2209/04 H04L2209/12

    Abstract: An apparatus arranged to accept digital data as an input and to process the data according to one of either the Secure Hash Algorithm (SHA-1) or Message Digest (MD5) algorithm to produce a fixed length output word. The apparatus includes a plurality of rotational registers for storing data, one of the registers arranged to receive the input data, and data stores for initialization of some of the plurality of registers according to whether the SHA-1 or MD5 algorithm is used. The data stores include fixed data relating to SHA-1 and MD5 operation. Also included is a plurality of dedicated combinatorial logic circuits arranged to perform logic operations on data stored in selected ones of the plurality of registers.

    Abstract translation: 一种被设置为接受数字数据作为输入并根据安全散列算法(SHA-1)或消息摘要(MD5)算法之一来处理数据以产生固定长度输出字的装置。 该装置包括用于存储数据的多个旋转寄存器,用于接收输入数据的寄存器之一,以及根据是使用SHA-1还是MD5算法初始化多个寄存器中的一些的数据存储。 数据存储包括与SHA-1和MD5操作有关的固定数据。 还包括多个专用组合逻辑电路,其被布置为对存储在多个寄存器中的选定寄存器中的数据执行逻辑运算。

    Method and apparatus for interlaced/non-interlaced frame determination, repeat-field identification and scene-change detection
    282.
    发明授权
    Method and apparatus for interlaced/non-interlaced frame determination, repeat-field identification and scene-change detection 有权
    用于隔行扫描/非隔行扫描帧确定,重复场识别和场景变化检测的方法和装置

    公开(公告)号:US07623576B1

    公开(公告)日:2009-11-24

    申请号:US09914171

    申请日:1999-02-26

    Abstract: A method of processing video data to detect field characteristics of the data, said data having a plurality of fields, including the steps of: comparing first and second fields, said first field being a successive field of said second field; comparing pixel values of respective sub-blocks of said first field and a third field, said second field being a successive field of said third field; determining whether said first field is an interlaced field or a progressive field with respect to a successive field of said first field based on said steps of comparing.

    Abstract translation: 一种处理视频数据以检测数据的场特性的方法,所述数据具有多个场,包括以下步骤:比较第一场和第二场,所述第一场是所述第二场的连续场; 比较所述第一场和第三场的各个子块的像素值,所述第二场是所述第三场的连续场; 基于所述比较步骤,确定所述第一场是否是相对于所述第一场的连续场的隔行场或逐行场。

    High performance W-CDMA slot synchronisation for initial cell search with reduced hardware
    283.
    发明授权
    High performance W-CDMA slot synchronisation for initial cell search with reduced hardware 有权
    用于初始小区搜索的高性能W-CDMA插槽同步,减少了硬件

    公开(公告)号:US07545895B2

    公开(公告)日:2009-06-09

    申请号:US10486168

    申请日:2001-03-13

    CPC classification number: H04B1/7083 H04B1/70735 H04B1/708

    Abstract: Two preferred embodiments provide slot synchronization of an initial cell search. Two Finite Impulse Response (FIR) filters are used to correlate the synchronization codes transmitted in the downlink (forward link). A sign bit is taken after the first FIR to significantly reduce the hardware requirements for the second FIR, and thus the whole system. The correlated results from the second FIR can be further processed using two different algorithms. The first adds a square operation to the correlated results whilst the second takes the magnitude before passing to the next stage. Regardless of which algorithm is adopted, the results are accumulated (I and Q), instead of averaged, and stored in a memory location for each successive correlation over the same location in different slots. The physical-layer processor (PLP) then reads the accumulated results from the memory location and searches for the peak position corresponding to the slot boundary.

    Abstract translation: 两个优选实施例提供了初始小区搜索的时隙同步。 使用两个有限脉冲响应(FIR)滤波器来关联在下行链路(前向链路)中发送的同步码。 在第一个FIR之后采用符号位,以显着降低第二FIR的硬件要求,从而降低整个系统的硬件要求。 可以使用两种不同的算法进一步处理来自第二FIR的相关结果。 第一个对相关结果添加一个平方运算,而第二个运算在通过下一阶段之前的幅度。 无论采用哪种算法,结果都被累积(I和Q)而不是平均值,并且存储在不同时隙中相同位置上的每个连续相关的存储器位置。 物理层处理器(PLP)然后从存储器位置读取累积的结果,并搜索对应于时隙边界的峰值位置。

    Non-volatile memory device and method of handling a datum read from a memory cell
    284.
    发明授权
    Non-volatile memory device and method of handling a datum read from a memory cell 有权
    非易失性存储器件和处理从存储器单元读取的数据的方法

    公开(公告)号:US07532512B2

    公开(公告)日:2009-05-12

    申请号:US11833400

    申请日:2007-08-03

    CPC classification number: G11C7/1051 G11C7/1048 G11C7/1069 G11C16/24

    Abstract: A memory device includes a pre-charge transistor for connecting/disconnecting the input line of a global data line driver to a supply voltage line. To reduce the flow of current through the pre-charge transistor even in a stand-by state, the pre-charge transistor is turned on when, at a same time, an enabling signal of a page buffer is asserted, and a low voltage functioning mode is selected and the memory device is not in a stand-by state. Alternatively, the memory device may be in a stand-by state but the datum read from the memory is high. The pre-charge transistor is securely turned off in all other cases.

    Abstract translation: 存储器件包括用于将全局数据线驱动器的输入线连接/断开到电源电压线的预充电晶体管。 为了减少即使在待机状态下通过预充电晶体管的电流流动,当同时使得页缓冲器的使能信号被断言,并且低电压工作时,预充电晶体管导通 模式被选择并且存储设备不处于待机状态。 或者,存储器件可以处于待机状态,但是从存储器读取的数据是高的。 在所有其他情况下,预充电晶体管被牢固地截止。

    Method and system for contrast enhancement of digital video
    285.
    发明授权
    Method and system for contrast enhancement of digital video 有权
    数字视频对比度增强的方法和系统

    公开(公告)号:US07424148B2

    公开(公告)日:2008-09-09

    申请号:US10878981

    申请日:2004-06-28

    Inventor: Kwong Huang Goh

    CPC classification number: G06T5/009 G06T5/40 G06T2207/10016

    Abstract: A method for enhancing the contrast of video pictures that includes the steps of receiving an input video signal; extracting a picture from said input video signal; determining an active window for said picture; calculating a histogram for luminance values of pixels in said active window of said picture; determining characteristics of said histogram; selecting one suitable mapping function from a plurality of mapping functions based on the determined characteristics of said histogram; and mapping the luminance value of each pixel in said picture in accordance with said selected mapping function.

    Abstract translation: 一种用于增强视频图像的对比度的方法,包括接收输入视频信号的步骤; 从所述输入视频信号中提取图像; 确定所述图片的活动窗口; 计算所述图像的所述活动窗口中的像素的亮度值的直方图; 确定所述直方图的特性; 基于所确定的所述直方图的特性,从多个映射函数中选择一个合适的映射函数; 以及根据所述选择的映射函数映射所述图像中的每个像素的亮度值。

    Automatic contrast enhancement
    286.
    发明申请
    Automatic contrast enhancement 有权
    自动对比度增强

    公开(公告)号:US20080037897A1

    公开(公告)日:2008-02-14

    申请号:US11890606

    申请日:2007-08-07

    CPC classification number: H04N5/20 G06T5/009 G06T5/40 G06T2207/10016

    Abstract: In a process for enhancing contrast of an image having pixels in different brightness intensities, a histogram in discrete bins is generated. Each bin represents a pixel population of at least one pixel brightness intensity. A peak and a peak region of the histogram is then identified, wherein the peak region is a range of discrete bins around the peak. An average pixel population within the peak region is computed, and the pixel populations of the discrete bins within the peak region that exceeds the average pixel population are distributed. A transfer curve for mapping onto the image is then generated. The process can be used in an image processor for enhancing contrast of an image having pixel. Still further, a display having a receiver and a screen can include the foregoing image processor.

    Abstract translation: 在用于增强具有不同亮度强度的像素的图像的对比度的处理中,产生离散区域中的直方图。 每个bin表示至少一个像素亮度强度的像素总数。 然后识别直方图的峰值和峰值区域,其中峰值区域是峰值周围的离散区域的范围。 计算峰值区域内的平均像素总数,并且分布超过平均像素总数的峰值区域内的离散区域的像素群体。 然后生成用于映射到图像上的传输曲线。 该处理可以用于图像处理器中以增强具有像素的图像的对比度。 此外,具有接收器和屏幕的显示器可以包括前述图像处理器。

    Adaptive rate control algorithm for low complexity AAC encoding
    287.
    发明申请
    Adaptive rate control algorithm for low complexity AAC encoding 有权
    低复杂度AAC编码的自适应速率控制算法

    公开(公告)号:US20070255562A1

    公开(公告)日:2007-11-01

    申请号:US11796036

    申请日:2007-04-26

    CPC classification number: G10L19/035

    Abstract: A system and method for adaptive rate control in audio processing is provided. The process could include receiving uncompressed audio data from an input and generating MDCT spectrum for each frame of the uncompressed audio data using a filterbank. The process could also include estimating masking thresholds for current frame to be encoded based on the MDCT spectrum. The masking thresholds reflect a bit budget for the current frame. The process could also include performing quantization of the current frame based on the masking thresholds. After the quantization of the current frame, the bit budget for next frame is updated for estimating the masking thresholds of the next frame. The process could also include encoding the quantized audio data.

    Abstract translation: 提供了一种用于音频处理中的自适应速率控制的系统和方法。 该过程可以包括从输入接收未压缩音频数据,并且使用滤波器组来生成未压缩音频数据的每帧的MDCT频谱。 该过程还可以包括基于MDCT频谱估计要编码的当前帧的掩蔽阈值。 屏蔽阈值反映当前帧的位预算。 该过程还可以包括基于掩蔽阈值执行当前帧的量化。 在当前帧的量化之后,更新下一帧的比特预算用于估计下一帧的掩蔽阈值。 该过程还可以包括对量化的音频数据进行编码。

    Carbon nanotube-modified low-K materials
    288.
    发明申请
    Carbon nanotube-modified low-K materials 有权
    碳纳米管改性低K材料

    公开(公告)号:US20070210455A1

    公开(公告)日:2007-09-13

    申请号:US11715260

    申请日:2007-03-07

    Abstract: An interconnect structure for use in an integrated circuit is provided. The interconnect structure includes a first low-K dielectric material. The first low-K material may be modified with a first group of carbon nanotubes (CNTs) and disposed on a metal line. The first low-K material is modified by dispersing the first group of CNTs in a solution, spinning the solution onto a silicon wafer and curing the solution to form the first low-K material modified with the first CNTs. The metal line includes a top layer and a bottom layer connected by a metal via. The interconnect structure also includes a second low-K dielectric material modified with a second group of CNTs and disposed on the bottom layer. Accordingly, embodiments the present disclosure could help to increase the mechanical strength of the low-K material or the entire interconnect structure.

    Abstract translation: 提供了一种用于集成电路的互连结构。 互连结构包括第一低K电介质材料。 第一低K材料可以用第一组碳纳米管(CNT)进行改性并设置在金属线上。 通过将第一组CNT分散在溶液中来将第一低K材料进行改性,将溶液旋转到硅晶片上并固化该溶液以形成用第一CNT改性的第一低K材料。 金属线包括由金属通孔连接的顶层和底层。 互连结构还包括用第二组CNT修饰并设置在底层上的第二低K电介质材料。 因此,本公开的实施例可以有助于增加低K材料或整个互连结构的机械强度。

    Flicker detection gain control circuit, digital imaging system, and method
    289.
    发明申请
    Flicker detection gain control circuit, digital imaging system, and method 有权
    闪烁检测增益控制电路,数字成像系统和方法

    公开(公告)号:US20070126895A1

    公开(公告)日:2007-06-07

    申请号:US11290308

    申请日:2005-11-29

    CPC classification number: H04N5/2351 H04N5/2357 H04N5/243

    Abstract: A gain control circuit includes a light detector for generating an amount of current based on received light and a first switch for controlling the amount of current from the light detector delivered to a node. The gain control circuit also includes a charge storage element for providing an amount of capacitance to the node and a second switch for controlling the amount of capacitance provided to the node. The gain control circuit further includes an output interface for delivering an output signal based on the amount of current and the amount of capacitance at the node. The light detector may include multiple photodiodes, and the first switch may include a pair of NMOS switching transistors coupled to at least one photodiode. Also, the charge storage element may include multiple capacitors, and the second switch may include a PMOS transistor and an NMOS transistor coupled to each capacitor.

    Abstract translation: 增益控制电路包括用于基于接收的光产生电流量的光检测器和用于控制从传送到节点的光检测器的电流量的第一开关。 增益控制电路还包括用于向节点提供一定量的电容的电荷存储元件和用于控制提供给节点的电容量的第二开关。 增益控制电路还包括用于基于电流量和节点处的电容量来输出输出信号的输出接口。 光检测器可以包括多个光电二极管,并且第一开关可以包括耦合到至少一个光电二极管的一对NMOS开关晶体管。 此外,电荷存储元件可以包括多个电容器,并且第二开关可以包括耦合到每个电容器的PMOS晶体管和NMOS晶体管。

    MEMORY TRANSFER CONTROLLER AND METHOD OF TRANSFER CONTROL OF VIDEO LINE DATA AND MACROBLOCK DATA
    290.
    发明申请
    MEMORY TRANSFER CONTROLLER AND METHOD OF TRANSFER CONTROL OF VIDEO LINE DATA AND MACROBLOCK DATA 审中-公开
    存储器传输控制器和视频线路数据和MACROBLOCK数据的传输控制方法

    公开(公告)号:US20070121730A1

    公开(公告)日:2007-05-31

    申请号:US11461611

    申请日:2006-08-01

    CPC classification number: H04N19/423 H04N19/61

    Abstract: A method of transferring sets of video line data and macroblock data, includes the steps of determining a macroblock period and a video line period longer than the macroblock period, dividing each set of video line data to be transferred within the video line period into two or more portions according to the difference between the determined macroblock period and video line period, aligning a burst transfer of each of the portions of the divided set of video line data and each set of macroblock data to the macroblock period, and initiating the burst transfer of the sets of video line data and macroblock data at macroblock period intervals.

    Abstract translation: 一种传送视频行数据和宏块数据集的方法包括以下步骤:确定宏块周期和比宏块周期长的视频行周期,将在视频行周期内传送的每组视频行数据划分成两个或 根据所确定的宏块周期和视频行周期之间的差异来更多部分,将分割的视频行数据集合的每个部分的突发传送与每个宏块数据集对齐到宏块周期,并且发起突发传送 在宏块周期间隔的视频行数据和宏块数据集合。

Patent Agency Ranking