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    Sensing amplifier with current mirror
    1.
    发明授权
    Sensing amplifier with current mirror 失效
    感应放大器带电流镜

    公开(公告)号：US5856748A

    公开(公告)日：1999-01-05

    申请号：US845270

    申请日：1997-04-24

    申请人： Yong-Seok Seo ,  Heung-Soo Im

    发明人： Yong-Seok Seo ,  Heung-Soo Im

    IPC分类号： G11C11/419 ,  G11C7/06 ,  G11C11/407 ,  H03F3/45

    CPC分类号： G11C7/062

    摘要： A sense amplifier increases the differential voltage between a reference signal and a sense signal by using a current mirror to control the generation of the reference signal and the sense signal responsive to a common control signal. The sense amplifier includes a reference signal generator for generating the reference signal at a reference node responsive to a reference cell, a sense signal generator for generating the sense signal at a sense node responsive to the state of a memory cell, and a differential amplifier for amplifying the voltage difference between the reference signal and the sense signal. The reference node is coupled to the reference cell which discharges current from the reference node, and the sense node is coupled to the memory cell which discharges current from the sense node. The reference signal generator includes a first current source transistor that is coupled between a power supply terminal and the reference node. The sense signal generator includes a second current source transistor coupled between the power supply terminal and the sense node. The control terminals of the first and second transistors are coupled together to receive the common control signal from either the reference node or the sense node. In either configuration, the control terminal of one of the current source transistor is decoupled from its respective node to allow the voltage of the node to vary widely with respect to the other node.

    摘要翻译： 感测放大器通过使用电流镜来增加参考信号和感测信号之间的差分电压，以响应于公共控制信号来控制参考信号的产生和感测信号。 读出放大器包括：参考信号发生器，用于响应于参考单元在参考节点处产生参考信号;感测信号发生器，用于响应于存储器单元的状态在感测节点处产生感测信号;以及差分放大器， 放大参考信号和感测信号之间的电压差。 参考节点耦合到从参考节点排出电流的参考单元，并且感测节点耦合到从感测节点放电电流的存储器单元。 参考信号发生器包括耦合在电源端子和参考节点之间的第一电流源晶体管。 感测信号发生器包括耦合在电源端子和感测节点之间的第二电流源晶体管。 第一和第二晶体管的控制端子耦合在一起以从参考节点或感测节点接收公共控制信号。 在任一配置中，电流源晶体管之一的控制端与其相应的节点去耦，以允许节点的电压相对于另一个节点变化很大。

    FORENSIC MARK INSERTION APPARATUS AND METHOD
    3.
    发明申请
    FORENSIC MARK INSERTION APPARATUS AND METHOD 失效
    威胁标记插入装置和方法

    公开(公告)号：US20110261997A1

    公开(公告)日：2011-10-27

    申请号：US13091569

    申请日：2011-04-21

    申请人： Jung Ho Lee ,  Young Ho Suh ,  Wonyoung Yoo ,  Yong-Seok Seo ,  Sang Kwang Lee ,  Seungjae Lee ,  Young-Suk Yoon

    发明人： Jung Ho Lee ,  Young Ho Suh ,  Wonyoung Yoo ,  Yong-Seok Seo ,  Sang Kwang Lee ,  Seungjae Lee ,  Young-Suk Yoon

    IPC分类号： G06K9/00

    CPC分类号： H04L9/0866 ,  G06F21/16 ,  H04L2209/606 ,  H04L2209/608 ,  H04N21/8358 ,  H04N21/8456

    摘要： A forensic mark insertion apparatus includes: an original content segment storage unit for storing multiple original contents; and a service control unit for, in response to a request for a content from a user, retrieving an original content corresponding to the request for the content from the original content segment storage unit, separating the retrieved original content into plurality of content segments, selectively inserting a forensic mark into some of the content segments, and assembling the content segments to produce an forensic-mark inserted content to be provided to the user.

    摘要翻译： 法医标记插入装置包括：原始内容段存储单元，用于存储多个原始内容; 以及服务控制单元，用于响应于来自用户的内容的请求，从原始内容段存储单元检索与该内容的请求相对应的原始内容，选择性地将检索的原始内容分离成多个内容段 将取证标记插入到一些内容段中，以及组合内容段以产生要提供给用户的插入法定标记的内容。

    Synchronous mask ROM device operable in consecutive read operation
    4.
    发明授权
    Synchronous mask ROM device operable in consecutive read operation 失效
    同步掩模ROM装置可在连续的读取操作中操作

    公开(公告)号：US06347064B1

    公开(公告)日：2002-02-12

    申请号：US09694103

    申请日：2000-10-19

    申请人： Yong-Seok Seo

    发明人： Yong-Seok Seo

    IPC分类号： G11C800

    CPC分类号： G11C7/106 ,  G11C7/1006 ,  G11C7/1045 ,  G11C7/1051 ,  G11C7/1072 ,  G11C2207/002

    摘要： A mask ROM device, which is synchronously operable with an external clock signal, has a single word mode or a double word mode. A word decoder and a selection circuit are provided to the mask ROM device, wherein, during a read operation of the single word mode, the word decoder holds a word signal at a disable interval of an internal clock signal earlier by 2 clock cycles than a clock cycle corresponding to a predetermined CAS latency after an occurrence of a read command, and the selection circuit transfers one of higher and lower data corresponding to columns selected by a column selection circuit to an output buffer circuit in response to selection signals generated by the word decoder, and then consecutively transfers the remaining one of the data thereto. According to such a control manner, word data can be accessed without a collision with previously outputted data, or pausing after it.

    摘要翻译： 与外部时钟信号同步操作的掩模ROM器件具有单字模式或双字模式。 字解码器和选择电路被提供给掩模ROM器件，其中，在单字模式的读取操作期间，字解码器将内部时钟信号的禁止间隔的字信号保持比两个时钟周期早2个时钟周期 时钟周期对应于在读取命令发生之后的预定CAS延迟，并且选择电路响应于由字产生的选择信号，将对应于列选择电路选择的列的高和低数据中的一个传送到输出缓冲器电路 解码器，然后连续传送剩余的一个数据。 根据这样的控制方式，可以在不与先前输出的数据冲突的情况下访问字数据，或者在其后暂停。

    Apparatus and method for embedding and extracting a digital watermark based on a wavelet
    5.
    发明授权
    Apparatus and method for embedding and extracting a digital watermark based on a wavelet 有权
    基于小波嵌入和提取数字水印的装置和方法

    公开(公告)号：US07092545B2

    公开(公告)日：2006-08-15

    申请号：US10329546

    申请日：2002-12-27

    申请人： Yong-Seok Seo ,  Sanghyun Joo ,  Weon Geun Oh

    发明人： Yong-Seok Seo ,  Sanghyun Joo ,  Weon Geun Oh

    IPC分类号： G06K9/00

    CPC分类号： G06T1/0057 ,  G06T1/0028 ,  G06T2201/0052 ,  G06T2201/0083 ,  G06T2201/0202

    摘要： In an apparatus for embedding digital watermarks into an image, a watermark embedding region extraction unit extracts an image region to contain watermarks from a wavelet transformed entire image. A watermark generation unit generates a watermark data row to be embedded according to a user's private key. A normalization operation unit normalizes the quantized data value by using a quantization unit into a normalized data value. An inverse quantization inversely quantizes and outputs the normalized data value. A watermark embedment unit embeds a watermark-embedded data value as a corresponding pixel data value into the watermark embedding region, wherein the watermark-embedded data value is obtained by subtracting, from the inversely quantized data value, the watermark data value added prior to the quantization.

    摘要翻译： 在将数字水印嵌入图像的装置中，水印嵌入区域提取单元从小波变换的整体图像中提取图像区域以包含水印。 水印生成单元根据用户的私钥生成要嵌入的水印数据行。 归一化操作单元通过使用量化单元将量化数据值归一化为归一化数据值。 逆量化逆量化并输出归一化数据值。 水印嵌入单元将水印嵌入数据值作为对应的像素数据值嵌入到水印嵌入区域中，其中通过从逆量化数据值中减去在该水印嵌入数据值之前添加的水印数据值， 量化。

    Method and Apparatus for Hybrid Watermarking
    8.
    发明申请
    Method and Apparatus for Hybrid Watermarking 审中-公开
    混合水印方法与装置

    公开(公告)号：US20090172404A1

    公开(公告)日：2009-07-02

    申请号：US12226915

    申请日：2006-08-11

    申请人： Won Gyum Kim ,  Yong-Seok Seo ,  Seon Hwa Lee ,  Wonyoung Yoo ,  Sang Kwang Lee ,  Sung Hwan Lee ,  Seungjae Lee ,  Hye Won Jung ,  Young-Suk Yoon ,  Jin Soo Seo ,  Young Ho Suh ,  Weon Geun Oh

    发明人： Won Gyum Kim ,  Yong-Seok Seo ,  Seon Hwa Lee ,  Wonyoung Yoo ,  Sang Kwang Lee ,  Sung Hwan Lee ,  Seungjae Lee ,  Hye Won Jung ,  Young-Suk Yoon ,  Jin Soo Seo ,  Young Ho Suh ,  Weon Geun Oh

    IPC分类号： H04L9/00 ,  G06K9/36 ,  G06K9/46 ,  G06K9/40

    CPC分类号： G06T1/0071 ,  G06T2201/0052

    摘要： A hybrid watermark insertion method includes the steps of dividing the digital image into a low frequency region and a high frequency region using an edge map of the digital image; inserting a watermark into the low frequency region of the image by employing a watermarking method using a human visual system (HVS); and inserting the watermark into the high frequency region of the image by employing a quantization index modulation (QIM) method. A hybrid watermark extraction method includes the steps of estimating a reference value used when inserting a watermark, and searching a maximum value of correlation coefficients in an image of the watermark image while changing the estimated reference value within a designated range, to thereby find out the watermark insertion method. Accordingly, the watermark insertion method can be easily identified, thereby enabling the watermark extraction in a more readily manner.

    摘要翻译： 混合水印插入方法包括以下步骤：使用数字图像的边缘图将数字图像分割成低频区域和高频区域; 通过使用人类视觉系统（HVS）的水印方法将水印插入图像的低频区域; 并通过采用量化索引调制（QIM）方法将水印插入图像的高频区域。 混合水印提取方法包括以下步骤：估计在插入水印时使用的参考值，并且在指定范围内改变估计的参考值的同时，在水印图像的图像中搜索相关系数的最大值，从而找出 水印插入法。 因此，可以容易地识别水印插入方法，从而能够更容易地进行水印提取。

    Robust blind watermarking method in wavelet DC components
    9.
    发明授权
    Robust blind watermarking method in wavelet DC components 有权
    小波直流分量中的鲁棒盲水印方法

    公开(公告)号：US06934403B2

    公开(公告)日：2005-08-23

    申请号：US10029835

    申请日：2001-12-31

    申请人： Sanghyun Joo ,  Yong-Seok Seo ,  Young Ho Suh ,  Weon Geun Oh

    发明人： Sanghyun Joo ,  Yong-Seok Seo ,  Young Ho Suh ,  Weon Geun Oh

    IPC分类号： H04N5/913 ,  G06T1/00 ,  G06K9/00

    CPC分类号： G06T1/0057 ,  G06T2201/0052 ,  G06T2201/0083

    摘要： An apparatus and method for embedding and extracting digital watermarks using a blind mode based on wavelet transform which is robust to external attacks while being capable of minimizing a degradation in picture quality caused by embedding of the watermarks. In accordance with the invention, watermarks protection of the copyright for desired data are embedded in DC component domains of wavelet-transformed domains. In accordance with the invention, embedding of watermarks in a target image corresponding to a target domain in which the watermarks are to be embedded, is achieved by generating a data stream of the watermarks in accordance with a key value selected by the user, generating index information representing positions where the watermarks are to be embedded, in accordance with a key value selected by the ser, and reflecting the watermark data stream on data values of pixels in the target image at the positions based on the index information.

    摘要翻译： 一种使用基于小波变换的盲模式嵌入和提取数字水印的装置和方法，该小波变换对于外部攻击是鲁棒的，同时能够最小化由嵌入水印引起的图像质量的劣化。 根据本发明，水印保护期望数据的版权被嵌入到小波变换域的DC分量域中。 根据本发明，通过根据用户选择的键值产生水印的数据流，将水印嵌入在与要嵌入水印的目标域相对应的目标图像中，产生索引 根据由该服务器选择的键值来表示要嵌入水印的位置的信息，并且基于该索引信息，将该水印数据流反映在该目标图像中的像素的数据值上。

    Read only memory with neighboring memory blocks sharing block selection lines
    10.
    发明授权
    Read only memory with neighboring memory blocks sharing block selection lines 有权
    只读存储器，具有共享块选择行的相邻存储块

    公开(公告)号：US06252817B1

    公开(公告)日：2001-06-26

    申请号：US09361490

    申请日：1999-07-26

    申请人： Yong-Seok Seo ,  Byeng-Sun Choi

    发明人： Yong-Seok Seo ,  Byeng-Sun Choi

    IPC分类号： G11C800

    CPC分类号： G11C8/12

    摘要： A memory comprising a plurality of memory blocks having a plurality of memory cells and wordlines, each of the memory blocks having selection lines by which the memory blocks are selected. The selection lines are shared between neighboring blocks. In addition, a wordline switching circuit is coupled between conductors carrying wordline drive signals and the wordlines, and a block selection line circuit is coupled between conductors carrying the block selection lines signals and the block selection lines. A selection control circuit supplies selection control signals to the wordline switching circuit and the block selection line switching circuit. The selection control circuit generates the selection control signals in response to address informing signals. The selection lines are coupled to discharge circuits, which pull down voltage levels of selection lines that are not selected.

    摘要翻译： 一种存储器，包括具有多个存储器单元和字线的多个存储器块，每个存储器块具有选择存储块的选择线。 选择行在相邻块之间共享。 此外，字线切换电路耦合在承载字线驱动信号和字线的导体之间，并且块选择线电路耦合在承载块选择线信号的导体和块选择线之间。 选择控制电路将选择控制信号提供给字线切换电路和块选择线切换电路。 选择控制电路响应于地址通知信号产生选择控制信号。 选择线耦合到放电电路，其降低未被选择的选择线的电压电平。