公开(公告)号：US5900946A

公开(公告)日：1999-05-04

申请号：US416984

申请日：1995-04-05

申请人： Setsu Kunitake ,  Koh Kamizawa ,  Yutaka Koshi ,  Shunichi Kimura ,  Akihiro Andoh

发明人： Setsu Kunitake ,  Koh Kamizawa ,  Yutaka Koshi ,  Shunichi Kimura ,  Akihiro Andoh

IPC分类号： G06T9/00 ,  H03M7/30 ,  H04N1/41 ,  H04N7/60 ,  H04N19/102 ,  H04N19/126 ,  H04N19/134 ,  H04N19/176 ,  H04N19/196 ,  H04N19/60 ,  H04N19/625

CPC分类号： H04N21/434 ,  H04N19/115 ,  H04N19/152 ,  H04N19/184 ,  H04N19/60 ,  H04N21/236 ,  H04N19/146 ,  H04N19/50

摘要： Transfer control information for controlling a transfer amount per unit time of a transfer path is delivered from a transfer control section to an information transfer section. During encoding, the information transfer section receives image information from an external device in accordance with the transfer control information, and inputs the same to an image-information encoding/decoding section. A code-amount control section forwards code-amount control information for controlling the code amount to the image-information encoding/decoding section. The image-information encoding/decoding section encodes the image information in accordance with the code-amount control information outputted from the code-amount control section. The information transfer section transfers to an external device encoded information outputted from the image-information encoding/decoding section, while the transfer amount per unit time is being controlled by the transfer control section.

摘要翻译： 用于控制传送路径的每单位时间的传送量的传送控制信息从传送控制部传送到信息传送部。 在编码期间，信息传送部根据传送控制信息从外部设备接收图像信息，并将其输入到图像信息编码/解码部分。 码量控制部分转发用于控制代码量的代码量控制信息给图像信息编码/解码部分。 图像信息编码/解码部分根据从码量控制部分输出的码量控制信息对图像信息进行编码。 信息传送部分转移到由图像信息编码/解码部分输出的外部设备编码信息，同时转移控制部分控制每单位时间的传送量。

公开(公告)号：US5978561A

公开(公告)日：1999-11-02

申请号：US728089

申请日：1996-10-09

申请人： Shunichi Kimura ,  Akihiro Andoh ,  Setsu Kunitake ,  Shinji Shishido ,  Yutaka Koshi ,  Koh Kamizawa

发明人： Shunichi Kimura ,  Akihiro Andoh ,  Setsu Kunitake ,  Shinji Shishido ,  Yutaka Koshi ,  Koh Kamizawa

IPC分类号： G03G15/01 ,  G06K15/00 ,  G06K15/12 ,  H04N1/00 ,  H04N1/04 ,  H04N1/387 ,  H04N1/411 ,  B41B15/00 ,  B41J2/385 ,  H04N1/417

CPC分类号： G06K15/00 ,  G06K15/129 ,  G06K2215/0022 ,  G06K2215/0094

摘要： The memory capacity required for temporarily holding image data with respect to a printer is reduced, and loads involved in supplying image data, such as decoding and conversion processes, are dispersed and reduced. The apparatus divides image data in parallel with a main scanning direction by an image divider, stores the divided data in image data memory, and supplies the divided image data to image data temporary memory by an image data supply to perform a decoding process. In order to provide a matching with a process speed, the image data temporary memory temporarily retains the divided image data, and a printer prints an image on a sheet of paper on the basis of the divided image data stored in the image data temporary memory. A predictor predicts a supply process time by way of image data supply, and an image data supply control causes the image data supply to start the supply process of the divided image data at a time preceding the time for the start of the print process by the printer according to the time predicted.

摘要翻译： 临时保存关于打印机的图像数据所需的存储器容量减少，并且分散和减少诸如解码和转换处理之类的提供图像数据所涉及的负载。 该装置通过图像分割器与主扫描方向并行地分割图像数据，将划分的数据存储在图像数据存储器中，并通过图像数据供给分割图像数据到图像数据临时存储器，以执行解码处理。 为了提供与处理速度的匹配，图像数据临时存储器暂时保留分割的图像数据，并且打印机基于存储在图像数据临时存储器中的分割图像数据在一张纸上打印图像。 预测器通过图像数据供给来预测供给处理时间，并且图像数据供给控制使图像数据供给在开始印刷处理的时间之前开始分割图像数据的供给处理 打印机根据时间预测。

公开(公告)号：US5995660A

公开(公告)日：1999-11-30

申请号：US890424

申请日：1997-07-09

申请人： Akihiro Andoh ,  Shunichi Kimura ,  Shinji Shishido ,  Yutaka Koshi

发明人： Akihiro Andoh ,  Shunichi Kimura ,  Shinji Shishido ,  Yutaka Koshi

IPC分类号： H04N1/40 ,  G06K9/20 ,  G06T7/40 ,  H03M7/30 ,  H04N1/413 ,  G06K9/00 ,  G06K9/62 ,  G06K9/68

CPC分类号： G06K9/00456

摘要： The present invention has an object to determine whether image data is generated by data processing such as PDL, or optically captured scan-in image, for each area.To achieve the object, a determining table is provided for distribution patterns of pixels having substantially the same pixel value for image data area composed of plural pixels. Then a reference area designating unit designates a reference area by selecting from input image data the pixel of interest having a pixel value and the reference pixels surrounding thereof. A same pixel value distribution generating unit compares the pixel value of the pixel of interest with the pixel values of the reference pixels in the reference area to generate a distribution pattern of the pixel having substantially the same pixel value. Next, a determining unit compares the generated distribution pattern with the distribution patterns held in the determining table to determine the reference area to be the image data generated by data processing.

摘要翻译： 本发明的目的是确定通过诸如PDL的数据处理或者每个区域的光学捕获的扫描图像来生成图像数据。 为了实现该目的，提供了一个确定表，用于具有与由多个像素组成的图像数据区域具有基本相同的像素值的像素的分布图案。 然后，参考区域指定单元通过从输入图像数据中选择具有像素值的关注像素和围绕它的参考像素来指定参考区域。 相同像素值分布生成单元将感兴趣像素的像素值与参考区域中的参考像素的像素值进行比较，以生成具有基本相同像素值的像素的分布图案。 接下来，确定单元将生成的分布模式与保持在确定表中的分布模式进行比较，以确定作为通过数据处理生成的图像数据的参考区域。

公开(公告)号：US5822463A

公开(公告)日：1998-10-13

申请号：US917168

申请日：1997-08-25

申请人： Taro Yokose ,  Akihiro Andoh ,  Shunichi Kimura ,  Setsu Kunitake ,  Yutaka Koshi ,  Koh Kamizawa

发明人： Taro Yokose ,  Akihiro Andoh ,  Shunichi Kimura ,  Setsu Kunitake ,  Yutaka Koshi ,  Koh Kamizawa

IPC分类号： G06T9/00 ,  H03M7/30 ,  H03M7/36 ,  H03M7/40 ,  H04N1/41 ,  H04N19/126 ,  H04N19/134 ,  H04N19/146 ,  H04N19/189 ,  H04N19/196 ,  H04N19/423 ,  H04N19/60 ,  H04N19/625 ,  H04N19/85 ,  H04N19/91

CPC分类号： H04N19/192 ,  H04N19/124 ,  H04N19/149 ,  H04N19/172 ,  H04N19/60 ,  H04N19/146 ,  H04N19/152

摘要： An image transforming section subjects image data to compression processing. A quantizing section quantizes the transformed data using a quantization width. A variable-length coding section subjects the quantized data to variable-length coding. A code-amount computing section determines a total code amount by accumulating partial code amounts. A control section performs control based on the code amount. An estimating method selecting section adaptively selects a quantization width estimating method. A coded result storage section stores data of a code amount corresponding to the quantization width. First and second quantization width estimating sections have different quantization width estimating methods.

摘要翻译： 图像变换部将图像数据进行压缩处理。 量化部分使用量化宽度来量化变换的数据。 可变长度编码部分对经量化的数据进行可变长度编码。 代码量计算部分通过累积部分代码量来确定总代码量。 控制部根据代码量进行控制。 估计方法选择部分自适应地选择量化宽度估计方法。 编码结果存储部分存储与量化宽度对应的代码量的数据。 第一和第二量化宽度估计部分具有不同的量化宽度估计方法。

公开(公告)号：US06212234B1

公开(公告)日：2001-04-03

申请号：US09079188

申请日：1998-05-15

申请人： Akihiro Andoh ,  Taro Yokose

发明人： Akihiro Andoh ,  Taro Yokose

IPC分类号： H04B166

CPC分类号： G06T9/004 ,  H04N1/64

摘要： A color image of a dot-sequential system is converted into a color image of a field-sequential system and a color image can be encoded/decoded at a high speed with a high compression ratio. A pixel value of image data of a dot-sequential system is sequentially inputted to a reference area generating means, and the reference area generating means outputs target pixel data and reference area data. A same pixel value distributing and generating means generates and outputs a same pixel value distribution from the target pixel data and the reference area data. A predictive information encoding means encode data in accordance with an encoding generating table, and outputs predictive information encoded data and an encoding result signal. A dot-sequential/field-sequential image converting means converts pixel data of dot-sequential system into image data of field-sequential system when data cannot be encoded. A predictive error calculating means calculates and outputs a predictive error based on a pixel value data of field-sequential system. A predictive error encoding means encodes a predictive error, for example, in an arithmetic coding fashion.

摘要翻译： 点序系统的彩色图像被转换为​​场顺序系统的彩色图像，并且彩色图像可以以高压缩率高速编码/解码。 点序系统的图像数据的像素值被顺序地输入到参考区域生成装置，并且参考区域生成装置输出目标像素数据和参考区域数据。 相同的像素值分配和生成装置从目标像素数据和参考区域数据生成并输出相同的像素值分布。 预测信息编码装置根据编码产生表对数据进行编码，并输出预测信息编码数据和编码结果信号。 点数/场顺序图像转换装置当数据不能被编码时，将点序系统的像素数据转换为场顺序系统的图像数据。 预测误差计算装置基于场顺序系统的像素值数据来计算并输出预测误差。 预测误差编码装置例如以算术编码方式对预测误差进行编码。

公开(公告)号：US06205254B1

公开(公告)日：2001-03-20

申请号：US09064008

申请日：1998-04-22

申请人： Yutaka Koshi ,  Setsu Kunitake ,  Akihiro Andoh

发明人： Yutaka Koshi ,  Setsu Kunitake ,  Akihiro Andoh

IPC分类号： G06K936

CPC分类号： G06T9/005

摘要： An image coding apparatus and method efficiently compresses a variety of images by a lossless or near-lossless coding, and an image decoding apparatus and method decodes code data encoded by the image coding apparatus and method. A windowing unit determines peripheral pixel values, which include a coding object pixel value and values of pixels located near the coding object pixel. An approximation unit uses plural approximation methods so as to output decoded pixel candidates, each of which approximates the coding object pixel value based on the values of the nearby pixels by using one of the plural approximation methods. The plural approximation methods can include an interpolation method and a quantization method. A minimum error selector calculates an error between the coding object pixel value and each of the decoded pixel candidates, and outputs a rank of the approximation method that produced the minimum error. A rank/runlength calculator counts the runlength of first ranks and outputs a coding symbol. The coding symbol can be the rank or the runlength. An encoder encodes the coding symbol so as to output code data.

摘要翻译： 图像编码装置和方法通过无损或近无损编码有效地压缩各种图像，并且图像解码装置和方法对由图像编码装置和方法编码的代码数据进行解码。 窗口单元确定外围像素值，其包括编码对象像素值和位于编码对象像素附近的像素的值。 近似单元使用多个近似方法，以通过使用多个近似方法中的一个来输出解码像素候选，其中的每一个都基于邻近像素的值近似于编码对象像素值。 多个近似方法可以包括内插方法和量化方法。 最小误差选择器计算编码对象像素值和每个解码像素候选之间的误差，并输出产生最小误差的近似方法的秩。 等级/游程长度计算器对第一等级的游程进行计数并输出编码符号。 编码符号可以是等级或游程长度。 编码器对编码符号进行编码，以输出代码数据。

公开(公告)号：US5821969A

公开(公告)日：1998-10-13

申请号：US728093

申请日：1996-10-09

申请人： Yutaka Koshi ,  Shinji Shishido ,  Setsu Kunitake ,  Shunichi Kimura ,  Akihiro Andoh ,  Koh Kamizawa

发明人： Yutaka Koshi ,  Shinji Shishido ,  Setsu Kunitake ,  Shunichi Kimura ,  Akihiro Andoh ,  Koh Kamizawa

IPC分类号： H04N1/60 ,  G06K15/02 ,  H04N1/46 ,  H03M1/82

CPC分类号： G06K15/02 ,  G06K2215/0077

摘要： In an image forming apparatus, memory capacity necessary for temporarily retaining image data is reduced. A decoding process is carried out by diving image data for one frame into element data for each color component Y, M, C and K. The element data for each color component is stored in the temporary memory. A controller starts conveyance of recording media on the basis of estimation of the completion time of decoding processing by a decoding speed estimator, and controls the recorders for Y, M, C and K to execute the recording process of element data retained in the temporary memory. This results in an image being recorded on the recording medium for each element data retained in the temporary memory, such that the conveyance of the recording media and the supply of data to the recorders for Y, M, C and K are matched, and the data amount to be retained in the temporary memory is reduced.

摘要翻译： 在图像形成装置中，减少了暂时保留图像数据所需的存储容量。 通过将一帧的图像数据潜入每个颜色分量Y，M，C和K的元素数据来进行解码处理。每个颜色分量的元素数据被存储在临时存储器中。 控制器基于解码速度估计器对解码处理的完成时间的估计开始传送记录介质，并且控制Y，M，C和K的记录器执行保存在临时存储器中的元素数据的记录处理 。 这导致在记录介质上记录保留在临时存储器中的每个元素数据的图像，使得记录介质的传送和向Y，​​M，C和K的记录器提供数据被匹配，并且 减少了要保存在临时存储器中的数据量。

公开(公告)号：US5778166A

公开(公告)日：1998-07-07

申请号：US733606

申请日：1996-10-18

申请人： Akihiro Andoh ,  Shinji Shishido ,  Yutaka Koshi ,  Koh Kamizawa

发明人： Akihiro Andoh ,  Shinji Shishido ,  Yutaka Koshi ,  Koh Kamizawa

IPC分类号： G06F3/06 ,  G06F11/20 ,  G06F11/14

CPC分类号： G06F11/2094 ,  G11B20/1879 ,  G11B27/36 ,  G11B2020/1062 ,  G11B2020/10916 ,  G11B2020/183 ,  G11B2220/2516 ,  G11B2220/415

摘要： An auxiliary storage controlling device is able to assure the data transferring rate even when an irregular occurs. The controlling device comprises a plurality of auxiliary storage units each of which stores the same data, a readout system for reading out said data from said plurality of auxiliary storage units simultaneously in response to a readout command, a detecting system for detecting an auxiliary storage unit in which the reading out of said data is finished at the earliest, a selecting system for selecting said data which is read from said detected auxiliary storage unit, an irregular detecting system for detecting an irregular auxiliary storage unit which is still working, and a readout prohibiting system for prohibiting a consecutive readout command against said irregular auxiliary storage unit. Additional features to assure the data transferring rate are also disclosed.

摘要翻译： 辅助存储控制装置即使发生不规则的情况也能确保数据传送速率。 控制装置包括多个辅助存储单元，每个辅助存储单元存储相同的数据;读出系统，用于响应于读出命令同时从所述多个辅助存储单元中读出所述数据;检测系统，用于检测辅助存储单元 其中所述数据的读出最早完成，用于选择从所述检测到的辅助存储单元读取的所述数据的选择系统，用于检测仍在工作的不规则辅助存储单元的不规则检测系统和读出 禁止系统禁止对所述不规则辅助存储单元的连续读出命令。 还公开了确保数据传输速率的附加特征。