公开(公告)号：US08045814B2

公开(公告)日：2011-10-25

申请号：US12268057

申请日：2008-11-10

申请人： Junichi Odagiri ,  Hironori Yahagi ,  Shigeru Yoshida

发明人： Junichi Odagiri ,  Hironori Yahagi ,  Shigeru Yoshida

IPC分类号： G06K9/46

CPC分类号： H04N19/90 ,  H04N19/124 ,  H04N19/126 ,  H04N19/14 ,  H04N19/182 ,  H04N19/50

摘要： An image compression device having a prediction unit for predicting a value of a compressing target pixel from peripheral values, and quantizing prediction error between a prediction value of the prediction unit and a value of an actual pixel in a predetermined quantizing step, comprising: a specific pixel level difference evaluation unit sequentially calculating the difference value between the level values as a sum of the prediction values corresponding to each of the compressed pixel immediately before the compressing target pixel and peripheral compressed pixels adjacent to the pixel and the quantization value of the prediction error, and evaluating the sameness of the difference value; and a quantization switching unit controlling the quantization in the quantizing step more precise than the quantizing step used when the difference value continuously indicates the same value as a result of the evaluation by the specific pixel level difference evaluation unit.

摘要翻译： 一种图像压缩装置，具有预测单元，用于从外围值预测压缩对象像素的值，并且在预定量化步骤中量化预测单元的预测值与实际像素的值之间的预测误差，包括： 像素电平差分评估单元，其顺序地计算电平值之间的差值，作为与压缩目标像素之前的压缩像素和与像素相邻的外围压缩像素之间的每个压缩像素的预测值的和与预测误差的量化值 ，并评估差值的相同性; 以及量化切换单元，其在与所述特定像素级差分评估单元的评估结果不同的值连续指示相同的值时，比量化步骤更精确地控制量化步长。

公开(公告)号：US6094634A

公开(公告)日：2000-07-25

申请号：US12548

申请日：1998-01-23

申请人： Hironori Yahagi ,  Takashi Morihara

发明人： Hironori Yahagi ,  Takashi Morihara

IPC分类号： G06F17/28 ,  H03M7/30 ,  G10L13/08

CPC分类号： H03M7/30 ,  G06F17/2863

摘要： A data compressing/decompressing apparatus is suitable for compressing data containing plural-byte characters, for instance, a Japanese language text. The data compressing/decompressing apparatus owns a homonym dictionary in which KANJI-character idioms, KANJI-character-reading, and homonym discrimination information are stored in correspondence with each other. This data compressing/decompressing apparatus converts a KANJI-character idiom contained in declarative sentence data into phonetic data, and further compresses this phonetic data to output the compressed phonetic data. The phonetic data is such data that this KANJI-character idiom is replaced by information constituted by character number discrimination information indicative of the character number about KANJI-character idiom reading, the reading thereof, and the homonym discrimination information thereof.

摘要翻译： 数据压缩/解压缩装置适用于压缩包含多字节字符的数据，例如日语文本。 数据压缩/解压缩装置拥有一个同音异义字典，其中相互对应地存储有汉字字符成语，汉字字符读取和同音异构判别信息。 该数据压缩/解压缩装置将声明语句数据中包含的KANJI字符成语转换成语音数据，并进一步压缩该语音数据以输出压缩的语音数据。 语音数据是这样的数据，即这个KANJI字符成语被由表示关于汉字字母习语读取的字符数字，字符读数以及它们的同音异义识别信息的字符数字识别信息构成的信息所取代。

公开(公告)号：US20090052790A1

公开(公告)日：2009-02-26

申请号：US12268057

申请日：2008-11-10

申请人： Junichi Odagiri ,  Hironori Yahagi ,  Shigeru Yoshida

发明人： Junichi Odagiri ,  Hironori Yahagi ,  Shigeru Yoshida

IPC分类号： H04N7/26

CPC分类号： H04N19/90 ,  H04N19/124 ,  H04N19/126 ,  H04N19/14 ,  H04N19/182 ,  H04N19/50

摘要： An image compression device having a prediction unit for predicting a value of a compressing target pixel from peripheral values, and quantizing prediction error between a prediction value of the prediction unit and a value of an actual pixel in a predetermined quantizing step, comprising: a specific pixel level difference evaluation unit sequentially calculating the difference value between the level values as a sum of the prediction values corresponding to each of the compressed pixel immediately before the compressing target pixel and peripheral compressed pixels adjacent to the pixel and the quantization value of the prediction error, and evaluating the sameness of the difference value; and a quantization switching unit controlling the quantization in the quantizing step more precise than the quantizing step used when the difference value continuously indicates the same value as a result of the evaluation by the specific pixel level difference evaluation unit.

摘要翻译： 一种图像压缩装置，具有预测单元，用于从外围值预测压缩对象像素的值，并且在预定量化步骤中量化预测单元的预测值与实际像素的值之间的预测误差，包括： 像素电平差分评估单元，其顺序地计算电平值之间的差值，作为与压缩目标像素之前的压缩像素和与像素相邻的外围压缩像素之间的每个压缩像素的预测值的和与预测误差的量化值 ，并评估差值的相同性; 以及量化切换单元，其在与所述特定像素级差分评估单元的评估结果不同的值连续指示相同的值时，比量化步骤更精确地控制量化步长。

公开(公告)号：US5109428A

公开(公告)日：1992-04-28

申请号：US446660

申请日：1989-12-06

申请人： Seigo Igaki ,  Takashi Shinzaki ,  Fumio Yamagishi ,  Hiroyuki Ikeda ,  Hironori Yahagi

发明人： Seigo Igaki ,  Takashi Shinzaki ,  Fumio Yamagishi ,  Hiroyuki Ikeda ,  Hironori Yahagi

IPC分类号： A61B5/117 ,  G06K9/00 ,  G07C9/00

CPC分类号： A61B5/1172 ,  G06K9/00087 ,  G07C9/00158

摘要： An apparatus used in fingerprint identification for extracting minutia data from fingerprint image data. An optical sensor unit optically produces a sequence of fingerprint image data during a single operation of pressing a fingerpad onto an inspection plate in a direction substantially transverse to the plate and with increasing pressure over a time interval. A data storing unit stores the produced fingerprint image data in the form of a sequence of fingerprint image data obtained during the single operation of pressing the fingerpad onto the inspection plate. The stored fingerprint image data is utilizable for identification of the fingerprint.

公开(公告)号：US08311107B2

公开(公告)日：2012-11-13

申请号：US12267975

申请日：2008-11-10

申请人： Junichi Odagiri ,  Hironori Yahagi ,  Shigeru Yoshida

发明人： Junichi Odagiri ,  Hironori Yahagi ,  Shigeru Yoshida

IPC分类号： H04N7/12

CPC分类号： H04N19/436 ,  H04N19/105 ,  H04N19/11 ,  H04N19/14 ,  H04N19/16 ,  H04N19/182 ,  H04N19/593

摘要： A quantizer quantizes a “prediction error” as a difference value between a pixel X to be compressed and a prediction value X′. A variable-length encoder inputs a quantization number obtained from a quantization table of the quantizer, and outputs a variable-length code (compressed code). A prediction value candidate calculation module calculates candidates 1 through k for a prediction value on the basis of peripheral pixels A, C, and B, and transmits them to a multiplexer (MPX). A prediction value determination module determines a prediction value among the candidates 1 through k for a prediction value on the basis of an intermediate value correspondence table and an intermediate value—image format correspondence table depending on an image format, and transmits a control signal to the multiplexer (MPX). The multiplexer (MPX) outputs one of the candidates 1 through k for a prediction value as a prediction value X′.

摘要翻译： 量化器将预测误差量化为要压缩的像素X与预测值X'之间的差值。 可变长度编码器输入从量化器的量化表获得的量化数，并输出可变长度码（压缩码）。 预测值候补计算模块基于周边像素A，C和B计算候选1至k的预测值，并将其发送到多路复用器（MPX）。 预测值确定模块根据中间值对应表和取决于图像格式的中间值图像格式对应表来确定候选1至k中的预测值，并将控制信号发送到 多路复用器（MPX）。 复用器（MPX）将候选1到k之一作为预测值输出作为预测值X'。

公开(公告)号：US07519903B2

公开(公告)日：2009-04-14

申请号：US09819729

申请日：2001-03-29

申请人： Hironori Yahagi

发明人： Hironori Yahagi

IPC分类号： G06F15/00

CPC分类号： G06F17/2264 ,  G06F17/2247 ,  Y10S707/99942

摘要： A new element is generated by joining the contents of elements relatively at the same position among a plurality of records of a structured document. Next, a new record that includes the new element and inherits the relative position relationship of the elements within the records is generated. The plurality of records are then replaced with the new record.

摘要翻译： 通过将元素的内容相对位于结构化文档的多个记录中的相同位置来生成新的元素。 接下来，生成包含新元素并继承记录中的元素的相对位置关系的新记录。 然后将多个记录替换为新记录。

公开(公告)号：US5673042A

公开(公告)日：1997-09-30

申请号：US405209

申请日：1995-03-16

申请人： Shigeru Yoshida ,  Yoshiyuki Okada ,  Yasuhiko Nakano ,  Hironori Yahagi

发明人： Shigeru Yoshida ,  Yoshiyuki Okada ,  Yasuhiko Nakano ,  Hironori Yahagi

IPC分类号： G06F5/00 ,  G06F17/30 ,  G06T9/00 ,  H03M7/30 ,  H03M7/46 ,  H03H7/00

CPC分类号： G06F17/30985 ,  G06T9/005 ,  H03M7/3086

摘要： The present invention relates to a method of and an apparatus for compressing/decompressing data, to improve the compression ratio of sliding-dictionary-type Ziv-Lempel codes. A sliding-dictionary-type data compression method finds a matching character string in a coding character string and in a coded character string stored in a dictionary 101. According to the length of the matching character string, the method chooses a raw data mode that codes the matching character string that must consist of a single character as it is, or a reproduction mode that codes the position and length in the dictionary 101 of the matching character string. The method allocates consecutive numbers to different codes to be prepared under the raw data mode and reproduction mode. The method relates any code prepared under one of the raw data mode and reproduction mode to a corresponding one of the consecutive numbers, codes the number according to a code book, and rearranges the code book to shorten the length of the code of the number.

摘要翻译： 本发明涉及一种用于压缩/解压缩数据的方法和装置，以提高滑动词典型Ziv-Lempel码的压缩率。 滑动字典型数据压缩方法在编码字符串和字典101中存储的编码字符串中找到匹配的字符串。根据匹配字符串的长度，该方法选择编码的原始数据模式 必须由单个字符组成的匹配字符串，或者编码匹配字符串的字典101中的位置和长度的再现模式。 该方法将连续的数字分配给在原始数据模式和再现模式下准备的不同的代码。 该方法将在原始数据模式和再现模式之一下准备的任何代码与相应的一个连续数字相关联，根据代码簿对该编号进行编码，并重新排列代码簿以缩短编号的代码长度。

公开(公告)号：US20090052530A1

公开(公告)日：2009-02-26

申请号：US12267975

申请日：2008-11-10

申请人： Junichi Odagiri ,  Hironori Yahagi ,  Shigeru Yoshida

发明人： Junichi Odagiri ,  Hironori Yahagi ,  Shigeru Yoshida

IPC分类号： H04N7/12

CPC分类号： H04N19/436 ,  H04N19/105 ,  H04N19/11 ,  H04N19/14 ,  H04N19/16 ,  H04N19/182 ,  H04N19/593

摘要： A quantizer quantizes a “prediction error” as a difference value between a pixel X to be compressed and a prediction value X′. A variable-length encoder inputs a quantization number obtained from a quantization table of the quantizer, and outputs a variable-length code (compressed code). A prediction value candidate calculation module calculates candidates 1 through k for a prediction value on the basis of peripheral pixels A, C, and B, and transmits them to a multiplexer (MPX). A prediction value determination module determines a prediction value among the candidates 1 through k for a prediction value on the basis of an intermediate value correspondence table and an intermediate value—image format correspondence table depending on an image format, and transmits a control signal to the multiplexer (MPX). The multiplexer (MPX) outputs one of the candidates 1 through k for a prediction value as a prediction value X′.

摘要翻译： 量化器将“预测误差”量化为要压缩的像素X与预测值X'之间的差值。 可变长度编码器输入从量化器的量化表获得的量化数，并输出可变长度码（压缩码）。 预测值候补计算模块基于周边像素A，C和B计算候选1至k的预测值，并将其发送到多路复用器（MPX）。 预测值确定模块根据中间值对应表和取决于图像格式的中间值图像格式对应表来确定候选1至k中的预测值，并将控制信号发送到 多路复用器（MPX）。 复用器（MPX）将候选1到k之一作为预测值输出作为预测值X'。

公开(公告)号：US06871320B1

公开(公告)日：2005-03-22

申请号：US09352355

申请日：1999-07-13

申请人： Takashi Morihara ,  Hironori Yahagi ,  Noriko Satoh

发明人： Takashi Morihara ,  Hironori Yahagi ,  Noriko Satoh

IPC分类号： G06F5/00 ,  G06T9/00 ,  H03M7/30 ,  H03M7/40 ,  G06F17/00

CPC分类号： G06T9/005 ,  H03M7/3084

摘要： A tag information separating unit separates a tag identified from a character train stream and outputs as tag information. A tag code replacing unit arranges a tag code for identification to a position of the character train stream in which the tag was separated. A character train coding unit compression encodes the character train stream including a tag code which is outputted from the tag code replacing unit. A data reconstructing apparatus reconstructs the character train stream by the operation opposite to the compression.

摘要翻译： 标签信息分离单元将从字符串流中识别的标签分离并作为标签信息输出。 标签代码单元将用于识别的标签代码排列到标签被分离的字符串流的位置。 字符串编码单元对包括从标签代码单元输出的标签代码的字符串流进行压缩编码。 数据重建装置通过与压缩相反的操作来重构字符串流。

公开(公告)号：US5801648A

公开(公告)日：1998-09-01

申请号：US574436

申请日：1995-12-15

申请人： Noriko Satoh ,  Yoshiyuki Okada ,  Shigeru Yoshida ,  Hironori Yahagi

发明人： Noriko Satoh ,  Yoshiyuki Okada ,  Shigeru Yoshida ,  Hironori Yahagi

IPC分类号： H03M7/42 ,  H03M7/30 ,  H03M7/40

CPC分类号： H03M7/40 ,  H03M7/3084

摘要： A data compressing method involves the use of a data string registering unit for registering a charactor or charactor string and the context and a code information registering unit for registering coding information of the character or character string following the context, the coding information following previous a input data. The data compressing method includes a data string new registering step of, when the input character or character string and the context set is not registering in the string registering unit, register the set in the data string registering unit. The same method also includes a code information new registering step of, when the input character or character string's code information following the context is not registering in the code information registering unit, register the code information in the code information registering unit and a code outputting step of outputting the code following the code information registered in the code information registering unit and a code information updating step of updating the code information registering unit.

摘要翻译： 数据压缩方法涉及使用用于登记字符串或字符串的数据字符串登记单元和上下文，以及用于在上下文之后登记字符或字符串的编码信息的代码信息登记单元，在输入之后的编码信息 数据。 数据压缩方法包括数据串新的登记步骤，当输入字符或字符串和上下文集合未在字符串注册单元中注册时，将该集合注册到数据串登记单元中。 同样的方法还包括代码信息新登记步骤，当输入字符或字符串在上下文之后的代码信息未被注册到代码信息登记单元中时，将代码信息注册到代码信息登记单元中，并且代码输出步骤 输出代码信息登记单元中登记的代码信息的代码，代码信息更新步骤更新代码信息登记单元。