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41. 发明授权

US5604752A Communication method and apparatus therefor 失效
标题翻译：通信方法及其设备
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。

42. 发明授权

US5524090A Apparatus for multiplying long integers 失效
标题翻译：用于乘以长整数的装置
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。

43. 发明授权

US5459741A Error correction method 失效
标题翻译：纠错方式
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。

44. 发明授权

US07606426B1 Image processing apparatus and method and storage medium 失效
标题翻译：图像处理装置及方法及存储介质
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。

45. 发明授权

US07530031B2 Character input device 有权
公开(公告)号：US07530031B2
公开(公告)日：2009-05-05
申请号：US10351383
申请日：2003-01-27
申请人： Keiichi Iwamura , Osamu Ota , Junya Yamaguchi , Shunsuke Tanaka , Kazuhiro Yoshihara
发明人： Keiichi Iwamura , Osamu Ota , Junya Yamaguchi , Shunsuke Tanaka , Kazuhiro Yoshihara
IPC分类号： G06F3/048
CPC分类号： G06F3/018 , G06F3/0236
摘要： A character input device not completely occupying a screen, good in visibility, and enabling input of characters while reducing to a minimum the movement of the fingers and line of sight, which, in the case of input of for example the hiragana 50-character phonetic syllabary of the Japanese language, displays an initial block of the major group lead characters a (), ka (), sa (), ta (), na () on a first row of a character input region on a display screen and the block of the remaining major group lead characters ha (), ma (), ya (), ra (), wa () on the second row, allows movement of a focus position or character position by “left” and “right” keys (a ()→ka ()→sa ()→ . . . ), switches the character focused to the block of ha (), ma (), ya (), ra (), wa () after the focus position reaches na (), allows switching between displayed characters by for example using the “down” key to move to the next character (for example, a ()→i ()→u ()→ . . . ) and using the “up” key to move to the furthest character in the group (for example, a ()→o ()→ . . . ), and allowing input of the character by using a “decision” key when the character to be input is focused on.

46. 发明授权

US07296161B1 Image processing apparatus and image processing method 有权
标题翻译：图像处理装置和图像处理方法
公开(公告)号：US07296161B1
公开(公告)日：2007-11-13
申请号：US09521424
申请日：2000-03-08
申请人： Satoru Wakao , Keiichi Iwamura
发明人： Satoru Wakao , Keiichi Iwamura
IPC分类号： H04L9/00
CPC分类号： H04L9/3247 , H04L2209/603 , H04N19/60
摘要： An apparatus generates additional data used to check whether an encoded digital image is changed or not. The apparatus includes a calculation unit and a recording unit. The calculation unit (a) performs a predetermined calculation using the encoded digital image and confidential information and (b) generates the additional data by applying a one-way function to a result of the predetermined calculation. The recording unit records both the encoded digital image and the additional data on a recording medium. The confidential information includes (a) first information unique to the apparatus, and (b) second information unique to an external apparatus connected to the apparatus.
摘要翻译：设备生成用于检查编码数字图像是否改变的附加数据。该装置包括计算单元和记录单元。计算单元（a）使用编码的数字图像和秘密信息进行预定的计算，（b）通过对预定的计算结果应用单向函数来生成附加数据。记录单元将编码的数字图像和附加数据记录在记录介质上。机密信息包括（a）设备唯一的第一信息，和（b）连接到该设备的外部设备唯一的第二信息。

47. 发明授权

US07181043B2 Data processing method and apparatus 失效
标题翻译：数据处理方法和装置
公开(公告)号：US07181043B2
公开(公告)日：2007-02-20
申请号：US11222958
申请日：2005-09-12
申请人： Keiichi Iwamura
发明人： Keiichi Iwamura
IPC分类号： G06K9/00 , H04L9/00
CPC分类号： H04N1/32203 , H04N1/32208 , H04N1/32229 , H04N1/32272 , H04N2201/3233 , H04N2201/327
摘要： An encrypted image C(i, j) is generated by exclusively ORing pseudo random number values, which are generated using a key k0 as a key, and respective bits, except for the LSBs, of B pixel data at respective pixel positions (i, j) of digital image data I(i, j). First check bits B(i, j) corresponding to the pixel positions of pixels are generated based on the image C(i, j) and a conversion table. A digitally watermarked image I′(i, j) is obtained by embedding the first check bits in the LSBs of the corresponding pixel data of the digital image data. Check bits U(i, j) are obtained by encrypting pixel data by exclusively ORing respective bits, except for the LSBs, of B pixel data at positions (i, j) of the image I′(i, j) and the pseudo random numbers. If each check bit U(i, j) matches the LSB of the corresponding B pixel data, it is determined that the corresponding pixel is free from tampering.
摘要翻译：通过将使用密钥k <0> 0生成的伪随机数值作为密钥和B像素之外的各个比特（LSB除外）进行异或运算，生成加密图像C（i，j）数字图像数据I（i，j）的各个像素位置（i，j）的数据。基于图像C（i，j）和转换表生成与像素的像素位置对应的第一个校验位B（i，j）。通过在数字图像数据的对应像素数据的LSB中嵌入第一校验位来获得数字水印图像I'（i，j）。通过对图像I'（i，j）的位置（i，j）处的B像素数据的除LSB之外的各个位进行异或运算来加密像素数据来获得校验位U（i，j）数字。如果每个校验位U（i，j）与对应的B像素数据的LSB匹配，则确定对应的像素没有被篡改。

48. 发明授权

US07146339B2 Multiplexing user information to an output image 有权
标题翻译：将用户信息复用到输出图像
公开(公告)号：US07146339B2
公开(公告)日：2006-12-05
申请号：US09781332
申请日：2001-02-13
申请人： Keiichi Iwamura
发明人： Keiichi Iwamura
IPC分类号： G06F99/00
CPC分类号： G06Q30/06
摘要： An image processing apparatus which stores user information related to a seller or a buyer of the image processing apparatus. The user information is thereafter multiplexed to an output image formed by the image processing apparatus. If the output image were an unlawful image, the seller or the buyer could be identified from the user information multiplexed in the output image.
摘要翻译：一种图像处理装置，其存储与图像处理装置的卖方或买方有关的用户信息。此后，用户信息被复用到由图像处理装置形成的输出图像。如果输出图像是非法图像，则可以从输出图像中复用的用户信息中识别卖方或买方。

49. 发明授权

US07142689B2 Image processing apparatus for determining specific images 有权
标题翻译：用于确定特定图像的图像处理装置
公开(公告)号：US07142689B2
公开(公告)日：2006-11-28
申请号：US09771983
申请日：2001-01-30
申请人： Junichi Hayashi , Keiichi Iwamura , Yoshihiro Ishida , Tomochika Murakami
发明人： Junichi Hayashi , Keiichi Iwamura , Yoshihiro Ishida , Tomochika Murakami
IPC分类号： G06K9/00 , H04N1/40 , H04L9/00
CPC分类号： G06T1/005 , G06K9/46 , G06T2201/0064 , G06T2201/0065 , H04N1/32149 , H04N1/32309 , H04N1/32352 , H04N2201/3233 , H04N2201/327
摘要： An image processing method is provided. This method comprises: a first information extraction step of extracting first information, including a registration signal used to correct the geometrical distortion of an image; a determination step of employing results obtained at the first information extraction step to determine whether second information is to be extracted from the image; a division step of dividing the image into at least one block; and a selection step of selecting the block. In this method, the first information and the second information are embedded in the image as invisible or less visible electronic watermarks, and are added to components of said image that are less easily discerned by a human's eyes. Further, the amount of said first information is smaller than the amount of said second information, and the first information is embedded more deeply in the image than is the second information.
摘要翻译：提供了图像处理方法。该方法包括：第一信息提取步骤，提取包括用于校正图像的几何失真的登记信号的第一信息; 确定步骤，使用在所述第一信息提取步骤中获得的结果来确定是否要从所述图像中提取第二信息; 将图像划分为至少一个块的划分步骤; 以及选择该块的选择步骤。在该方法中，第一信息和第二信息被嵌入在图像中作为不可见或不太可见的电子水印，并且被添加到不容易被人眼睛识别的所述图像的组件中。此外，所述第一信息的量小于所述第二信息的量，并且第一信息比第二信息更深地嵌入在图像中。

50. 发明授权

US07103827B2 Method and apparatus for detecting start position of code sequence, and decoding method and apparatus using the same 失效
标题翻译：用于检测代码序列的起始位置的方法和装置，以及使用其的解码方法和装置
公开(公告)号：US07103827B2
公开(公告)日：2006-09-05
申请号：US10233504
申请日：2002-09-04
申请人： Keiichi Iwamura
发明人： Keiichi Iwamura
IPC分类号： H03M13/15 , H03M13/33
CPC分类号： H04L1/0045 , H03M13/15 , H03M13/333 , H03M13/618 , H04L1/0057
摘要： A code sequence start position detection method and apparatus, and a decoding method and apparatus, which can quickly detect the start position of a code sequence by a simple processing arrangement, and can decode the code sequence on the basis of the detected start position, are provided. In order to detect a start position of a cyclic code sequence with a code length n, the cyclic code sequence with the code length n is input in turn, and a multiplier g, register r, and adder+generate a syndrome for a coded word from the first start position ci−1 (i=1, 2, . . . ) to the first end position ci−1+n in the register r. A multiplier w and adder+correct the generated syndrome using data based on a coded word which is stored in an n-bit buffer and starts from the second start position ci+n, and a NOR detects the start position of the cyclic code sequence with the code length n on the basis of the modified syndrome.
摘要翻译：一种代码序列开始位置检测方法和装置以及解码方法和装置，其可以通过简单的处理装置快速检测码序列的开始位置，并且可以基于检测到的开始位置对码序列进行解码，提供。为了检测码长为n的循环码序列的开始位置，依次输入码长为n的循环码序列，乘法器g，寄存器r，加法器+生成编码字的校正子从第一起始位置c i-1（i = 1,2，...）到寄存器r中的第一结束位置c i-1 + n i + n and开始的数据校正所产生的校正子，并且NOR检测到基于经修改的综合征，具有码长度n的循环码序列的起始位置。

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