公开(公告)号：US06826290B1

公开(公告)日：2004-11-30

申请号：US09688108

申请日：2000-10-16

申请人： Tomochika Murakami ,  Keiichi Iwamura ,  Junichi Hayashi

发明人： Tomochika Murakami ,  Keiichi Iwamura ,  Junichi Hayashi

IPC分类号： G06K900

CPC分类号： G06T1/0064 ,  G06T1/0028 ,  G06T2201/0065

摘要： To provide a variety of methods for extracting digital watermark information from an image as correctly as possible. For example, a first pattern arrangement and a second pattern arrangement which is different from the first pattern arrangement for use in a calculation for extracting the digital watermark information are provided. A state of an original image without the digital watermark information embedded is inferred, using a second pattern arrangement, and a reliability of the digital watermark information to be extracted in accordance with the state is determined. Or to decide the embedding position of the digital watermark information from the image data, the extracting start position is discriminated by detecting the positional information by multiple times at the different extracting start positions. Or to detect a geometrical distortion, a registration signal is embedded on the image.

摘要翻译： 提供从图像中​​尽可能正确地提取数字水印信息的各种方法。 例如，提供了与用于提取数字水印信息的计算中使用的第一图案配置不同的第一图案布置和第二图案布置。 推测出没有嵌入数字水印信息的原始图像的状态，使用第二图案排列，并且确定要根据状态提取的数字水印信息的可靠性。 或者为了从图像数据确定数字水印信息的嵌入位置，通过在不同的提取开始位置检测位置信息多次来判别提取开始位置。 或者为了检测几何失真，将注册信号嵌入在图像上。

公开(公告)号：US06741758B2

公开(公告)日：2004-05-25

申请号：US09824745

申请日：2001-04-04

申请人： Junichi Hayashi ,  Keiichi Iwamura ,  Yoshihiro Ishida

发明人： Junichi Hayashi ,  Keiichi Iwamura ,  Yoshihiro Ishida

IPC分类号： G06K932

CPC分类号： G06T1/005 ,  G06T1/0028 ,  G06T2201/0065 ,  H04N1/32154 ,  H04N1/3216 ,  H04N1/32277 ,  H04N1/32309 ,  H04N1/32352 ,  H04N21/8358 ,  H04N2201/3233 ,  H04N2201/327 ,  H04N2201/3283

摘要： A registration signal embedding method of embedding registration signals adaptively in accordance with image signals. The frequency property of image data is determined, and either a first registration signal or a second registration signal is selected in accordance with the frequency property, and is added to image data. The registration embedded in this way has the advantage of increased resistance and easy detection.

摘要翻译： 一种根据图像信号自适应地嵌入注册信号的注册信号嵌入方法。 确定图像数据的频率属性，并且根据频率特性选择第一登记信号或第二登记信号，并将其添加到图像数据。 以这种方式嵌入的注册具有增加的阻力和容易检测的优点。

公开(公告)号：US06707465B2

公开(公告)日：2004-03-16

申请号：US09778932

申请日：2001-02-08

申请人： Takeshi Yamazaki ,  Keiichi Iwamura

发明人： Takeshi Yamazaki ,  Keiichi Iwamura

IPC分类号： G09G502

CPC分类号： G06T1/005 ,  G06T2201/0065 ,  G09G5/39

摘要： This invention provides a technique capable of always keeping digital watermark information embedded in image data having the embedded digital watermark information by an optimum scheme on the basis of a time factor, or removing a digital watermark, or erasing the image data. An apparatus for achieving the above object has functions of holding image data having additional information embedded as a digital watermark, detecting time information related to the image data, and changing the embedding scheme for the additional information as the digital watermark embedded in the image data on the basis of the detected time information.

摘要翻译： 本发明提供一种技术，其能够基于时间因素，或者去除数字水印，或者擦除图像数据，始终保持嵌入在具有嵌入数字水印信息的图像数据中的数字水印信息。 用于实现上述目的的装置具有保存具有作为数字水印嵌入的附加信息的图像数据的功能，检测与图像数据相关的时间信息，并且将嵌入在图像数据中的数字水印的附加信息的嵌入方案改变为 检测时间信息的基础。

公开(公告)号：US06535616B1

公开(公告)日：2003-03-18

申请号：US09334749

申请日：1999-06-17

申请人： Junichi Hayashi ,  Keiichi Iwamura

发明人： Junichi Hayashi ,  Keiichi Iwamura

IPC分类号： G06K900

CPC分类号： H04N19/186 ,  G06T1/005 ,  G06T2201/0052 ,  H04L12/40104 ,  H04L12/40117 ,  H04N1/32154 ,  H04N1/3217 ,  H04N1/32187 ,  H04N1/32192 ,  H04N1/32309 ,  H04N1/3232 ,  H04N1/32336 ,  H04N19/467 ,  H04N19/645 ,  H04N21/23892 ,  H04N21/8358 ,  H04N2201/3233 ,  H04N2201/327

摘要： The invention efficiently controls the method for embedding digital watermark information into digital information or detecting such digital watermark information. Also in case the digital information has components of different kinds, the invention enables individual management of the digital watermark information and information indicating the embedding method therefor. In a configuration for attaining these objects, there are provided input means for inputting the digital information composed of signal components of plural kinds, and control means for controlling the method for embedding the digital watermark information in the signal component of a first kind contained in the signal components of plural kinds, based on the signal component of a second kind contained in the signal components of plural kinds.

摘要翻译： 本发明有效地控制将数字水印信息嵌入数字信息或检测这种数字水印信息的方法。 此外，在数字信息具有不同种类的组件的情况下，本发明能够对数字水印信息进行单独管理和表示其嵌入方法的信息。 在用于实现这些目的的结构中，提供了输入由多种信号分量组成的数字信息的输入装置，以及控制装置，用于控制将数字水印信息嵌入到第一类信号分量中的方法 基于包含在多种信号分量中的第二类信号分量的多种信号分量。

公开(公告)号：US06449378B1

公开(公告)日：2002-09-10

申请号：US09235390

申请日：1999-01-22

申请人： Jun Yoshida ,  Kenichi Nagasawa ,  Keiichi Iwamura

发明人： Jun Yoshida ,  Kenichi Nagasawa ,  Keiichi Iwamura

IPC分类号： G06K900

CPC分类号： G06T1/0085 ,  G06T2201/0052

摘要： It is an object of this invention to reliably pad electronic water-mark information even in a moving image constituted by a plurality of frames whose contents hardly change and easily pad electronic water-mark information even in a general moving image obtained by photographing an object at one angle. In order to achieve this object, there is provided an electronic water-mark information padding scheme of padding electronic water-mark information in only intraframe-encoded data without padding any electronic water-mark information in interframe-encoded data.

摘要翻译： 本发明的目的是即使在由内容几乎不改变的多个帧构成的运动图像中也能可靠地焊接电子水印信息，并且即使在通过拍摄对象获得的一般运动图像中也容易地焊接电子水印信息 一个角度 为了实现该目的，提供了一种仅在帧内编码数据中填充电子水印信息而不填充帧间编码数据中的任何电子水印信息的电子水印信息填充方案。

公开(公告)号：US06272535B1

公开(公告)日：2001-08-07

申请号：US08791417

申请日：1997-01-30

申请人： Keiichi Iwamura

发明人： Keiichi Iwamura

IPC分类号： G06F1516

CPC分类号： G06Q20/02 ,  G06Q20/00 ,  G06Q20/12 ,  G06Q20/28 ,  G07F17/16

摘要： An accounting apparatus has a money input, by which a user can input an amount of money into the apparatus. A receiver receives a body of information transmitted over a communication medium, and a register is arranged to store at least two data received with such body of information. A control unit processes the at least two data in the register received with such body of information, and the amount input by the user via the money input, and an indicator indicates to the user whether the user is permitted access to the body of information, based on a result of processing provided by the control unit.

摘要翻译： 会计装置具有货币输入，通过该货币输入，用户可以将一定数量的货币输入到装置中。 接收机接收通过通信介质发送的信息的主体，并且寄存器被布置为存储用这种信息体接收的至少两个数据。 控制单元处理由该信息体接收到的寄存器中的至少两个数据，以及用户经由货币输入输入的数量，并且指示符向用户指示用户是否被允许访问信息主体， 基于由控制单元提供的处理结果。

公开(公告)号：US5604752A

公开(公告)日：1997-02-18

申请号：US363957

申请日：1994-12-27

申请人： Keiichi Iwamura

发明人： Keiichi Iwamura

IPC分类号： H03M13/00 ,  H03M13/15 ,  H03M13/37 ,  H04L1/00

CPC分类号： H04L1/0057 ,  H03M13/151 ,  H04L1/0045

摘要： A decoder of a communication apparatus includes a CPU which controls decoding processing, and a memory which stores a decoding processing program. The decoding processing program includes a syndrome polynomial generating unit which generates a syndrome polynomial on the basis of a received word, a polynomial updating unit which updates an error locator polynomial and an error evaluator polynomial, which are set using the generated syndrome polynomial, on the basis of a degree of the error locator polynomial, and a decoded sequence generating unit which generates a decoded sequence on the basis of the error locator polynomial and the error evaluator polynomial, thus decoding communication codes at a high speed with a minimal computational complexity.

摘要翻译： 通信装置的解码器包括控制解码处理的CPU和存储解码处理程序的存储器。 解码处理程序包括：校正子多项式生成单元，其基于接收到的单词生成校正子多项式;多项式更新单元，其更新使用所生成的校正子多项式设置的误差定位多项式和误差评估多项式， 基于误差定位多项式的程度，以及解码序列生成单元，其基于误差定位多项式和误差评估多项式生成解码序列，从而以最小的计算复杂度高速解码通信码。

公开(公告)号：US5524090A

公开(公告)日：1996-06-04

申请号：US512620

申请日：1995-08-08

申请人： Keiichi Iwamura

发明人： Keiichi Iwamura

IPC分类号： G06F7/52 ,  G06F7/72

CPC分类号： G06F7/5324 ,  G06F7/533 ,  G06F7/722 ,  G06F2207/3852 ,  G06F2207/3892 ,  G06F7/723

摘要： A multiplier apparatus designed to multiply integers of many figures with a small circuit scale in such a manner that an input value is partitioned and multiplication is performed by taking account of carries. With respect to partitioned input values, partial multiplications are repeatedly performed in parallel with each other, and results of the partial multiplications are added by a plurality of adders. A carry occurring at each adder is added in the same adder or in an upper adder in the next cycle of addition. A circuit for this operation may be formed as a systolic array of identical processing elements to perform the operation in a pipe line processing manner.

摘要翻译： 一种乘法器装置，被设计为以一种小的电路规模乘以多个数字的整数，使得输入值被分割并且通过考虑运算来执行乘法。 对于分割输入值，部分乘法相互并行重复执行，部分乘法的结果由多个加法器相加。 在下一个加法循环中，在相同的加法器或上加法器中，加法出现在每个加法器。 用于该操作的电路可以形成为相同处理元件的收缩阵列，以管线处理方式执行操作。

公开(公告)号：US5459741A

公开(公告)日：1995-10-17

申请号：US284289

申请日：1994-08-02

申请人： Keiichi Iwamura

发明人： Keiichi Iwamura

IPC分类号： H03M13/09 ,  H04L1/00 ,  G06F11/10

CPC分类号： H04L1/0057 ,  H03M13/098 ,  H03M13/33

摘要： An error correction system includes the steps of generating a first parity by multiplying a sequentially incrementing weight by each bit of transmitting data and summing the products, generating a second parity by multiplying a sequentially incrementing weight by each bit of received data and summing the products, comparing the first parity with the second parity, detecting an error in the received data for the transmitting data based on the comparison result, and correcting the detected error based on the detection result.

摘要翻译： 错误校正系统包括以下步骤：通过将顺序递增的权重乘以发送数据的每一位并对乘积求和来产生第一奇偶校验，通过将接收到的数据的每一位乘以顺序增加的权重并对乘积求和来产生第二奇偶校验， 将第一奇偶校验与第二奇偶校验相比较，基于比较结果检测发送数据的接收数据中的误差，并根据检测结果校正检测到的误差。

公开(公告)号：US07606426B1

公开(公告)日：2009-10-20

申请号：US09660444

申请日：2000-09-12

申请人： Keiichi Iwamura

发明人： Keiichi Iwamura

IPC分类号： G06K9/36 ,  G06K9/46

CPC分类号： H04N1/32203 ,  G06T1/0028 ,  G06T2201/0083 ,  G09C5/00 ,  H04N1/32208 ,  H04N1/32213 ,  H04N1/32277 ,  H04N19/467 ,  H04N2201/3233 ,  H04N2201/3269 ,  H04N2201/327

摘要： In an embedding technique of an invisible or visible digital watermark information, it is a main object to provide a technique which can reconstruct an original image and avoid an increase of the whole image data due to holding of key information or the like. To accomplish this object, an image processing apparatus of the invention is constructed by, an input unit for inputting image data showing an original image, a compressing unit for compressing at least a part of the image data, and an embedding unit for embedding compression data obtained by the compressing unit into the image data so that it is difficult to be identified by the human eyes by converting a part of the image data.

摘要翻译： 在不可见或可视数字水印信息的嵌入技术中，主要目的是提供一种能够重建原始图像并避免由于保存关键信息等而导致的整个图像数据的增加的技术。 为了实现该目的，本发明的图像处理装置由用于输入表示原始图像的图像数据的输入单元，用于压缩至少一部分图像数据的压缩单元和用于嵌入压缩数据的嵌入单元构成的图像处理装置 由压缩单元获得的图像数据，使得通过转换图像数据的一部分难以被人眼识别。