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    • 23. 发明申请
    • Digital watermark embedding method, digital watermark embedding apparatus, and storage medium storing a digital watermark embedding program
    • 数字水印嵌入方法,数字水印嵌入装置和存储数字水印嵌入程序的存储介质
    • US20060204032A1
    • 2006-09-14
    • US11412151
    • 2006-04-25
    • Takao NakamuraHiroshi OgawaAtsuki TomiokaYouichi Takashima
    • Takao NakamuraHiroshi OgawaAtsuki TomiokaYouichi Takashima
    • G06K9/00G06K9/36G06K9/46
    • G06T1/0028G06T2201/0051G06T2201/0052G06T2201/0061G06T2201/0083G06T2201/0202H04N1/32203H04N1/32208H04N1/32293H04N2201/3233H04N2201/327
    • A method for embedding a watermark into digital data, when the watermark is to be embedded in a digital image, independently changes real number components and imaginary number components of each of coefficient values of a complex watermark coefficient matrix using key, from the watermark to be embedded in the digital image, a step for performing a discrete Fourier inverse transform on the sequence matrix of the changed watermark and generating a watermark pattern; and a step for adding like tiling the water mark pattern to the original image, and generating an embedded image. Further more, a watermark detection method for detecting a watermark from a digital data, a step for separating a block from an arbitrary position on the detected object image, a step for performing a discrete Fourier transform on the block and obtaining a sequence matrix, a step for generating position information for a component that is to be detected and that is specified by the key, a step for detecting a position marker sequence by calculating a phase difference of a sequence by an amount of parallel displacement, for each item of the position information, and extracting offset information which is the amount of parallel displacement when there is agreement between a start point of an embedded watermark and a start point of the block cut from the detected object image, and a step for detecting the embedded watermark cut from the detected object image.
    • 一种将水印嵌入数字数据的方法,当将水印嵌入到数字图像中时,使用密钥从水印中独立地改变复数水印系数矩阵的每个系数值的实数分量和虚数分量, 嵌入在数字图像中的步骤,用于对改变的水印的序列矩阵执行离散傅立叶逆变换并产生水印图案; 以及将水印图案拼贴到原始图像上的添加步骤,以及生成嵌入图像。 此外,还提供了一种用于从数字数据中检测水印的水印检测方法,用于从检测到的对象图像上的任意位置分离块的步骤,对该块执行离散付里叶变换并获得序列矩阵的步骤, 用于生成要被检测并由密钥指定的组件的位置信息的步骤,用于通过针对每个位置的项目计算一个序列的平均位移量来检测位置标记序列的步骤 信息,并且提取作为在嵌入水印的开始点与从检测到的对象图像切割的块的开始点之间一致时的平行位移量的偏移信息,以及用于检测从检测到的对象图像剪切的嵌入水印的步骤 检测到物体图像。
    • 25. 发明授权
    • Head protecting airbag device
    • 头部保护安全气囊装置
    • US07077425B2
    • 2006-07-18
    • US10656871
    • 2003-09-08
    • Hiroshi OgawaMasao KinoEishichi Nakamura
    • Hiroshi OgawaMasao KinoEishichi Nakamura
    • B60R21/22
    • B60R21/232B60R21/213B60R2021/23316B60R2021/23576
    • A head protecting airbag device according to the present invention includes a gas admissive portion and a non-admissive portion. The gas admissive portion includes a gas feed passage disposed along the upper edge of the airbag, and an inflatable shielding portion located below the gas feed passage for covering the inner side of the windows upon deployment. The inflatable shielding portion includes a plurality of protection portions and a plurality of vertical passages vertically disposed in the front and rear of each of the protection portions. The protection portions are juxtaposed along the front-rear direction of the vehicle. The vertical passages are communicated at upper ends with the gas feed passage. Each of the protection portions admits inflation gas via the vertical passages.
    • 根据本发明的头部保护安全气囊装置包括气体承受部分和不受赞赏部分。 气体容纳部分包括沿着气囊的上边缘设置的气体供给通道,以及位于气体供给通道下方的充气屏蔽部分,用于在展开时覆盖窗户的内侧。 可充气屏蔽部分包括多个保护部分和垂直设置在每个保护部分的前后的多个垂直通道。 保护部分沿着车辆的前后方向并置。 垂直通道在上端与气体供给通道连通。 每个保护部分通过竖直通道承认充气气体。
    • 27. 发明申请
    • Feedback circuit
    • 反馈电路
    • US20060044059A1
    • 2006-03-02
    • US11200056
    • 2005-08-10
    • Kenji YokoyamaYasuo YamadaHiroshi Ogawa
    • Kenji YokoyamaYasuo YamadaHiroshi Ogawa
    • H03F1/36
    • H03F3/217H03F2200/351
    • For reducing various adverse effects due to provision of a low-pass filter, while suppressing an oscillation generated therein, there is provide a feedback circuit, having at least one operational amplifier, having a low-pass filter in an output portion thereof, for feeding a signal from the output portion back thereto, including: a first feedback circuit portion for negatively feeding a signal from an input terminal of the low-pass filter back to an inverted input terminal of the operational amplifier; and a second feedback circuit portion for negatively feeding a signal from an output terminal of the low-pass filter back to the inverted input terminal of the operational amplifier. In such the structure, the second feedback circuit portion is preferably provided with two sets of a first feedback operational amplifier and a second feedback operational amplifier, and the first feedback operational amplifier has a non-inverted input terminal connected to a predetermined input signal and has an inverted input terminal connected to the output terminal of the low-pass filter.
    • 为了减少由于提供低通滤波器而引起的各种不利影响,在抑制其中产生的振荡的同时,提供一种反馈电路,其具有至少一个运算放大器,其输出部分具有低通滤波器,用于馈送 从输出部分返回到其的信号,包括:第一反馈电路部分,用于将来自低通滤波器的输入端的信号反向馈送到运算放大器的反相输入端; 以及第二反馈电路部分,用于将来自低通滤波器的输出端的信号反向馈送到运算放大器的反相输入端。 在这种结构中,第二反馈电路部分优选地设置有两组第一反馈运算放大器和第二反馈运算放大器,并且第一反馈运算放大器具有连接到预定输入信号的非反相输入端,并且具有 连接到低通滤波器的输出端的反相输入端。