专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2014120893A Image reader, control method of the same, and image forming apparatus 审中-公开
标题翻译：图像读取器，其控制方法和图像形成装置
公开(公告)号：JP2014120893A
公开(公告)日：2014-06-30
申请号：JP2012274008
申请日：2012-12-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： INOUE KEITA , SHIRATO HIROTAKA , INAGE OSAMU
IPC分类号： H04N1/19 , G06T1/00
摘要： PROBLEM TO BE SOLVED: To perform image reading processing using a right/left division reading system at faster speed and with high quality.SOLUTION: An image sensor includes a plurality of photoelectric conversion elements which are continuously arranged and output received light as a pixel signal. A first region from one end of arrangement to a prescribed position in the arrangement and a second region from the prescribed position to the other end of the arrangement are divided and the pixel signals are outputted from the plurality of photoelectric conversion elements. When the image sensor receives reflected light from a background plate, an average value of pixel values is calculated from the plurality of pixel signals outputted from at least one of the first region and the second region. Correction is performed on shading correction in accordance with a comparison result obtained by comparing the average value with a reference value. The correction for one shading correction is performed for every one or more document images when the document images are continuously read.
摘要翻译：要解决的问题：以更快的速度和高质量执行使用右/左分割读取系统的图像读取处理。解决方案：图像传感器包括连续布置的多个光电转换元件，并将接收的光作为像素信号输出。从布置的一端到布置中的规定位置的第一区域和从布置的规定位置到另一端的第二区域被划分，并且从多个光电转换元件输出像素信号。当图像传感器接收到来自背景板的反射光时，根据从第一区域和第二区域中的至少一个输出的多个像素信号来计算像素值的平均值。根据通过将平均值与参考值进行比较而获得的比较结果，对阴影校正进行校正。当文档图像被连续读取时，对于每一个或多个文档图像执行一个阴影校正的校正。

2. 发明专利

JP2007049673A Image reading apparatus, image forming apparatus, image inspection apparatus and image forming system 审中-公开
标题翻译：图像读取装置，图像形成装置，图像检查装置和图像形成系统
公开(公告)号：JP2007049673A
公开(公告)日：2007-02-22
申请号：JP2006075710
申请日：2006-03-17
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SOEDA YOSHIHISA , YAMADA NORIO , KAGAMI YOSHINOBU , INAGE OSAMU , SATO KENICHI , IKEDA ATSUSHI
IPC分类号： H04N1/19
CPC分类号： H04N1/401 , H04N1/407 , H04N1/486
摘要： PROBLEM TO BE SOLVED: To prevent any defective image by correcting an image concentration difference around a connection point. SOLUTION: This image reading device is provided with a CCD 101 for dividing a shift register for transferring charge stored in a photo-diode from a central part to the first half and the second half for output and a scanner γ correction part 107 for correcting the linearity of the first half and the second half. Image data levels around a connection point of the first half and second half of data compounded for the respective output directions of the first half and the second half as data to be used for correction are detected by a signal processing part 103 for the respective output directions of the first half and the second half, and linearity correction values or correction value calculation parameters for any of the first half and the second half is calculated by a CPU 110 from the detected image data levels, and any defect in the detected image data levels around the connection point is detected. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过校正连接点周围的图像浓度差来防止任何有缺陷的图像。解决方案：该图像读取装置设置有CCD 101，用于将用于将存储在光电二极管中的电荷从中心部分转移到前半部分和用于输出的第二半部分的移位寄存器和扫描仪γ校正部分107 用于校正上半部和第二半的线性度。对于用于校正的数据，作为用于校正的数据的上半部分和第二半部分的各个输出方向复合的数据的前半部分和后半部分的连接点周围的图像数据电平由各个输出方向的信号处理部分103检测，并且由CPU110根据检测到的图像数据电平计算上半部和第二半中的任一个的线性校正值或校正值计算参数，并且检测到的图像数据电平中的任何缺陷检测到连接点周围。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2005244796A Image reading apparatus, image forming apparatus, image reading program, storage medium and image reading method 有权
标题翻译：图像读取装置，图像形成装置，图像读取程序，存储介质和图像读取方法
公开(公告)号：JP2005244796A
公开(公告)日：2005-09-08
申请号：JP2004054282
申请日：2004-02-27
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： INAGE OSAMU
IPC分类号： G06T1/00 , H04N1/028 , H04N1/19 , H04N1/40 , H04N1/407
摘要： PROBLEM TO BE SOLVED: To prevent a step from being conspicuous at joints of images read, using the so-called "FL type" CCD.
SOLUTION: Before performing predetermined image processing in an image processing means 35, processing for reducing the differential between data corresponding to a joint portion, for example, smoothing processing is applied to an output signal of an FL type CCD 10 by a boundary reduction means 36, thereby obtaining smooth image data wherein a step in the jointing portion is not conspicuous. Thus, proper image processing can be applied to image data which is closer to raw data, without the influence of the step in the stage of performing predetermined image processing. Furthermore, correction processing for the jointing portion can be performed properly, without requiring outputting due to a printer section, by only performing a normal image reading operation in a single image reading apparatus 1.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：使用所谓的“FL型”CCD来防止在图像读取的关节处的步骤显着。解决方案：在图像处理装置35中执行预定的图像处理之前，通过边界对FL型CCD 10的输出信号施加用于减小与关节部分相对应的数据之间的差异的处理，例如平滑处理缩小装置36，从而获得平滑的图像数据，其中接合部分中的台阶不明显。因此，在不受执行预定图像处理的阶段中的步骤的影响的情况下，适当的图像处理可以应用于更接近原始数据的图像数据。此外，通过仅在单个图像读取装置1中执行正常图像读取操作，可以适当地执行用于接合部分的校正处理，而不需要由于打印机部分的输出。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2004357136A Image reader 审中-公开
公开(公告)号：JP2004357136A
公开(公告)日：2004-12-16
申请号：JP2003154564
申请日：2003-05-30
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： INAGE OSAMU
IPC分类号： G03B27/54 , G06T1/00 , H04N1/028 , H04N1/04
摘要： PROBLEM TO BE SOLVED: To realize a new image reader by which timing for shifting electric charge and timing in which a light source is lit are set so that correspondence relation between quantity of the electronic charge generated by photoelectric conversion and stored and an image becomes accurate.
SOLUTION: The image reader is provided with: the light source which irradiates an original document with light; a light source lighting means which lights the light source by applying drive voltage to the light source; a photoelectric conversion means for converting reflected light or transmitted light of the light from the original into the electric charge; and an electric charge transfer means for transferring the electric charge for converting the electric charge into an image signal, and the reader reads an image drawn on the original as the image signal. The image reader is provided with a shift control signal generation means for generating a shift control signal for controlling timing in which the electric charge is shifted, and a lighting control signal generation means for generating a lighting control signal for controlling timing in which the drive voltage is applied, and makes waveform of the lighting control signal into the one that the same waveform is repeated by using one period of the shift control signal as a repetition unit.
COPYRIGHT: (C)2005,JPO&NCIPI

5. 发明专利

JP2004023349A Image reader and image processing apparatus equipped therewith 审中-公开
公开(公告)号：JP2004023349A
公开(公告)日：2004-01-22
申请号：JP2002174066
申请日：2002-06-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： INAGE OSAMU
IPC分类号： G06T1/00 , H04N1/028 , H04N1/04 , H04N1/19 , H04N1/46
摘要： PROBLEM TO BE SOLVED: To provide an image reader provided with a low-cost means capable of outputting a digital image signal maintaining a wide dynamic range without employing a conventional system in which gain adjustment of a variable gain is wholly used.
SOLUTION: A CPU 29 sets one main scanning time of a length capable of obtaining a CCD output of an S/N corresponding to a color or monochrome mode selected by an operation unit 38 in a driving circuit 21 of a CCD 9, and changes a preset value of a reference voltage in an A/D conversion circuit 26 so as to correspond to the output mode in order to maintain the wide dynamic range even depending on a change in CCD output generated by a change in output mode. Since the preset value of the reference voltage is changed in proportion to the one main scanning time, a means can be simplified.
COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2008067189A Image scanner, image forming device, and lighting control method 有权
标题翻译：图像扫描仪，图像形成装置和照明控制方法
公开(公告)号：JP2008067189A
公开(公告)日：2008-03-21
申请号：JP2006244441
申请日：2006-09-08
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： INAGE OSAMU
IPC分类号： H04N1/00 , G03G21/00 , G06T1/00 , H04N1/028 , H04N1/04
摘要： PROBLEM TO BE SOLVED: To shorten the period of time required for returning from an energy-saving mode. SOLUTION: When returning from the energy-saving mode, without waiting for initialization of a CPU 111 which controls a lighting unit 91 that is supplies with power from a power source means 94 to supply a drive voltage to a lighting means 51, a power source monitoring means 1200 outputs a lighting signal for the lighting unit 91 depending on the monitored result of a voltage output from the power source means 94. Accordingly, a return operation of the scanner from the energy-saving mode can be performed faster as compared with conventionally turning on a lighting means 51 after having initialized the CPU 1111 subsequently to power activation and therefore the time required for returning from the energy-saving mode can be shortened. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：缩短从节能模式返回所需的时间。解决方案：当从节能模式返回时，不等待控制从电源装置94供电的照明单元91的CPU 111的初始化来向照明装置51提供驱动电压，电源监视装置1200根据从电源装置94输出的电压的监视结果输出照明单元91的点亮信号。因此，扫描器从节能模式的返回操作可以更快地执行，如与通常在CPU 1111初始化电源激活之后打开照明装置51相比较，因此可以缩短从节能模式返回所需的时间。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2007028005A Image reader, image formation device and method for deciding abnormality 审中-公开
标题翻译：图像读取器，图像形成装置和用于决定异常的方法
公开(公告)号：JP2007028005A
公开(公告)日：2007-02-01
申请号：JP2005204833
申请日：2005-07-13
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： INAGE OSAMU
IPC分类号： H04N1/04 , G03B27/54 , H04N1/19
摘要： PROBLEM TO BE SOLVED: To separately detect the abnormality of the lighting of two or more of lamps, and to prevent the deterioration of the quality of a read image in an image reader having the lamps in an illumination system.
SOLUTION: The image reader has a plurality of the lamps irradiating an original surface with a light, a CCD 101 converting the reflected light into an electric signal and a reference white board for generating a shading correction data. The image reader has a CPU 108 separately lighting a plurality of the lamps, and a white-board reading-level detector 106 detecting the presence of the abnormalities of each lamp from a data reading the reference white board by the CCD 101.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：分别检测两个或更多个灯的点亮异常，并且防止在照明系统中具有灯的图像读取器中的读取图像的质量劣化。解决方案：图像读取器具有用灯照射原始表面的多个灯，将101反射的光转换成电信号的CCD 101和用于产生阴影校正数据的参考白板。图像读取器具有分别点亮多个灯的CPU108以及由CCD 101从读取参考白板的数据中检测每个灯的异常的存在的白板读取电平检测器106. < 版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2005341608A Image scanner 有权
标题翻译：图像扫描仪
公开(公告)号：JP2005341608A
公开(公告)日：2005-12-08
申请号：JP2005184903
申请日：2005-06-24
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： INAGE OSAMU
IPC分类号： G03G21/00 , H04N1/00
摘要： PROBLEM TO BE SOLVED: To provide an image scanner in which a time for recovery from a standby state is not extended more than needed and any unpleasant feeling is not given to a user. SOLUTION: After a power source of the image scanner is turned on (step S2), a DC level to be a reference of an analog image signal is adjusted to an arbitrary value (step S6), and a gain is adjusted so that an output value in the case of reading a reference whiteboard becomes an arbitrary value (step S8). These reference level adjusted value and gain adjusted value are stored in a RAM of a microcomputer, or the like (step S9). After the lapse of a predetermined time without performing image reading operation, the predetermined power source of the image scanner is turned off (step S12). If a pressing plate is opened or a document is set to an ADF (step S13), the power source that is turned off in the step S12, is turned on again (step S14) and the values stored in the step S9 are set to a gain amplifier and an offset setting part (step S15). COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种图像扫描器，其中从备用状态恢复的时间不会延长到超过需要的时间，并且不给用户任何不愉快的感觉。解决方案：在图像扫描器的电源打开之后（步骤S2），将作为模拟图像信号的参考的DC电平调整到任意值（步骤S6），并且增益被调整在读取参考白板的情况下的输出值变为任意值（步骤S8）。这些参考电平调整值和增益调整值被存储在微计算机的RAM等中（步骤S9）。在经过预定时间之后，不执行图像读取操作，图像扫描器的预定电源被关闭（步骤S12）。如果打开压板或将文档设置到ADF（步骤S13），则在步骤S12中关闭的电源再次被接通（步骤S14），并且将在步骤S9中存储的值设置为增益放大器和偏移设定部（步骤S15）。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2004070028A Picture reader, copying device and computer program 审中-公开
公开(公告)号：JP2004070028A
公开(公告)日：2004-03-04
申请号：JP2002229589
申请日：2002-08-07
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： INAGE OSAMU
IPC分类号： G03B27/62 , G03B27/50 , H04N1/04 , H04N1/10 , H04N1/107
摘要： PROBLEM TO BE SOLVED: To provide an image reader, a copying machine and a computer program which prevents defective reading due to the floating of an original from an original platen and enhances the handleability by reducing the load of user when the original apt to float from the reading position such as a stitch of book is made to be an object to be read.
SOLUTION: The image reader 1 is provided with an exposure optical system S which exposes and scans a picture of the original positioned on a reading position by moving a light source 8 along the original and an original retaining member 3 which is selectively located to a retaining position of locating the original to the reading position and a releasing position of releasing the reading position. When the original retaining member 3 is set at the releasing position on the start of the exposure scanning, the timing of the start of the exposure scanning is delayed as compared with the case that the original retaining member 3 is set at the retaining position when the start of the exposure scanning is announced.
COPYRIGHT: (C)2004,JPO

10. 发明专利

JP2003324601A Image-reading equipment and image forming equipment 审中-公开
标题翻译：图像读取设备和图像形成设备
公开(公告)号：JP2003324601A
公开(公告)日：2003-11-14
申请号：JP2002127898
申请日：2002-04-30
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： INAGE OSAMU
IPC分类号： G06T1/00 , H04N1/19 , H04N1/40 , H04N1/407
摘要： PROBLEM TO BE SOLVED: To stabilize A/D conversion of an analog image signal with high precision. SOLUTION: This image-reading equipment is provided with a line sensor 11a, a variable gain amplifier 11d for amplifying an analog image signal of the sensor, and an A/D converter 11f for converting an output data of the amplifier. Adjusting means 12e, 11g read a reference original document with the sensor 11a, detect a peak Ddp and holds image data Dd of a specified pixel. When the peak Ddp lies outside of a target range DdL to DdH, an upper reference voltage Vrefd when A/D converter the original document is changed. When the peak Ddp lies in the target range DdL-DdH, a reference white plate 15 is read by the sensor 11a. When image data Dw of the prescribed image data lie outside of a prescribed range (Dd-A) to (Dd+A), where the image data Dd of the prescribed pixel held when reading the reference original document is reference, the adjusting means 12e, 11g change an upper reference voltage Vrefw, when the A/D converter 11f reads the reference white plate. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：以高精度稳定模拟图像信号的A / D转换。该图像读取装置具备线传感器11a，用于放大传感器的模拟图像信号的可变增益放大器11d和用于转换放大器的输出数据的A / D转换器11f。调整装置12e，11g用传感器11a读取参考原稿，检测峰值Ddp并保持指定像素的图像数据Dd。当峰值Ddp位于目标范围DdL至DdH之外时，当A / D转换器原始文件改变时，上参考电压Vrefd。当峰Ddp在目标范围DdL-DdH中时，传感器11a读取参考白板15。当规定图像数据的图像数据Dw位于规定范围（Dd-A）至（Dd + A）之外时，其中读取参考原始文档时保持的规定像素的图像数据Dd为参考，调节装置12e ，当A / D转换器11f读取参考白板时，11g改变上参考电压Vrefw。版权所有（C）2004，JPO

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式