公开(公告)号：US20060184830A1

公开(公告)日：2006-08-17

申请号：US11344945

申请日：2006-01-31

申请人： Atsushi Takeda ,  Tatsuji Ashitani

发明人： Atsushi Takeda ,  Tatsuji Ashitani

IPC分类号： G06F11/00

CPC分类号： G11B20/18 ,  G11B2020/1826 ,  G11B2220/2579

摘要： A disk device has a reading portion that reads out from a disk having a rewritable area, a plurality of defect management areas and a plurality of position information areas indicating an optimum position used for reproduction in the plurality of the defect management areas, a recording portion that records information in the rewritable area or the defect management area, a reproducing portion which reproduces information read out by the reading portion and stored in the rewritable area based on given defect management information, and a control portion that reads out a plurality of defect management information based on the plurality of the position information stored in the position information area and controls the reading portion and the recording portion so as to repair defect management information which fails to be read out corresponding to defect management information which is read out successfully.

摘要翻译： 磁盘装置具有从具有可重写区域的多个缺陷管理区域和指示在多个缺陷管理区域中用于再现的最佳位置的多个位置信息区域读出的读取部分，记录部分 在可重写区域或缺陷管理区域中记录信息的再现部分，再现部分，其基于给定的缺陷管理信息再现由读取部分读出并存储在可重写区域中的信息;以及控制部分，其读出多个缺陷管理 基于存储在位置信息区域中的多个位置信息的信息，并且控制读取部分和记录部分，以便修复与成功读出的缺陷管理信息相对应的不能被读取的缺陷管理信息。

公开(公告)号：US20060168360A1

公开(公告)日：2006-07-27

申请号：US11338699

申请日：2006-01-25

申请人： Tatsuji Ashitani ,  Atsushi Takeda

发明人： Tatsuji Ashitani ,  Atsushi Takeda

IPC分类号： G06F3/00

CPC分类号： G11B20/1883 ,  G11B2020/1893 ,  G11B2220/20

摘要： A disk apparatus has reader unit which reads disk having re-writable storage area, a plurality of defect management areas, and a plurality of location information areas that indicate the location of optimum one to be played back in the plurality of defect management areas, and which outputs readout signal, playback unit which plays back information stored in the rewritable storage area in response to the readout signal of the reader unit on the basis of given defect management information, and controller unit which, when all the plurality of location information stored in the location information areas are accessed and some of them but not all are read out successfully, selects the latest location information among the plurality of location information read out successfully and controls the playback unit to execute playback operation on the basis of one item of the defect management information specified by the selected latest location information.

摘要翻译： 磁盘装置具有读取单元，其读取具有可重写存储区域的盘，多个缺陷管理区域和指示在多个缺陷管理区域中要重放的最佳位置的多个位置信息区域，以及 其输出读出信号，根据给定的缺陷管理信息响应读取器单元的读出信号重放存储在可重写存储区域中的信息的回放单元;以及控制器单元，当所有多个位置信息存储在 访问位置信息区域，并且其中一些但不是全部被成功地读出，在成功读出的多个位置信息中选择最新的位置信息，并且控制回放单元基于缺陷的一个项目执行重放操作 由所选最新位置信息指定的管理信息。

公开(公告)号：US08792025B2

公开(公告)日：2014-07-29

申请号：US13418511

申请日：2012-03-13

申请人： Shiroshi Kanemitsu ,  Tatsuji Ashitani ,  Yukiyasu Tatsuzawa

发明人： Shiroshi Kanemitsu ,  Tatsuji Ashitani ,  Yukiyasu Tatsuzawa

IPC分类号： H04N9/64 ,  H04N5/217 ,  H04N5/228 ,  G06K9/40

CPC分类号： H04N5/2355 ,  H04N5/35563 ,  H04N5/367 ,  H04N9/045

摘要： According to embodiments, an image processing apparatus includes an image signal holding unit. The image processing apparatus uses an image signal passing through the common image signal holding unit to generate first, second and third correction values. The first correction value is a signal value applied to a pixel in which saturation of an output occurs in a saturation determination. The second correction value is a signal value subjected to a noise cancellation process. The third correction value is a signal value applied to a pixel in which defect occurs in a defect determination.

摘要翻译： 根据实施例，图像处理装置包括图像信号保持单元。 图像处理装置使用通过公共图像信号保持单元的图像信号来生成第一，第二和第三校正值。 第一校正值是施加到在饱和度确定中发生输出饱和的像素的信号值。 第二校正值是经过噪声消除处理的信号值。 第三校正值是应用于在缺陷确定中发生缺陷的像素的信号值。

公开(公告)号：US20130021492A1

公开(公告)日：2013-01-24

申请号：US13418685

申请日：2012-03-13

申请人： Yukiyasu Tatsuzawa ,  Tatsuji Ashitani ,  Shiroshi Kanemitsu

发明人： Yukiyasu Tatsuzawa ,  Tatsuji Ashitani ,  Shiroshi Kanemitsu

IPC分类号： H04N5/228

CPC分类号： H04N5/2252 ,  H04N5/347 ,  H04N5/35581

摘要： According to embodiments, an image processing device includes a line-exposure selecting unit. The line-exposure selecting unit is capable of switching a pattern of selecting a first exposure time and a second exposure time. The second exposure time is shorter than the first exposure time. The line-exposure selecting unit switches the pattern according to at least one of a frame rate required of a synthetic image and an image size required of a synthetic image.

摘要翻译： 根据实施例，图像处理装置包括线曝光选择单元。 线曝光选择单元能够切换选择第一曝光时间和第二曝光时间的图案。 第二曝光时间比第一曝光时间短。 线曝光选择单元根据合成图像所需的帧速率和合成图像所需的图像尺寸中的至少一个来切换图案。

公开(公告)号：US20120314107A1

公开(公告)日：2012-12-13

申请号：US13418511

申请日：2012-03-13

申请人： Shiroshi KANEMITSU ,  Tatsuji Ashitani ,  Yukiyasu Tatsuzawa

发明人： Shiroshi KANEMITSU ,  Tatsuji Ashitani ,  Yukiyasu Tatsuzawa

IPC分类号： H04N9/64

CPC分类号： H04N5/2355 ,  H04N5/35563 ,  H04N5/367 ,  H04N9/045

摘要： According to embodiments, an image processing apparatus includes an image signal holding unit. The image processing apparatus uses an image signal passing through the common image signal holding unit to generate first, second and third correction values. The first correction value is a signal value applied to a pixel in which saturation of an output occurs in a saturation determination. The second correction value is a signal value subjected to a noise cancellation process. The third correction value is a signal value applied to a pixel in which defect occurs in a defect determination.

摘要翻译： 根据实施例，图像处理装置包括图像信号保持单元。 图像处理装置使用通过公共图像信号保持单元的图像信号来生成第一，第二和第三校正值。 第一校正值是施加到在饱和度确定中发生输出饱和的像素的信号值。 第二校正值是经过噪声消除处理的信号值。 第三校正值是应用于在缺陷确定中发生缺陷的像素的信号值。

公开(公告)号：US20080285406A1

公开(公告)日：2008-11-20

申请号：US12116880

申请日：2008-05-07

申请人： Hiroyuki Moro ,  Yasuhiro Kanishima ,  Hideyuki Yamakawa ,  Tatsuji Ashitani

发明人： Hiroyuki Moro ,  Yasuhiro Kanishima ,  Hideyuki Yamakawa ,  Tatsuji Ashitani

IPC分类号： G11B20/10

CPC分类号： G11B20/10027 ,  G11B20/10055 ,  G11B20/10194 ,  G11B20/10203

摘要： Provided is an optical disc apparatus which reproduces with use of a PRML method an optical disc having data recorded in a plurality of code lengths, the optical disc apparatus including: an AD conversion unit adapted to convert a reproduction signal of the optical disc into a multi-value digital signal; a waveform equalization unit adapted to perform waveform equalization on the multi-value digital signal on the basis of a predetermined partial response to generate an equalized reproduction signal; a decoding unit adapted to generate decoded data corresponding to data recorded on the optical disc from the equalized reproduction signal; and a crest value extraction unit adapted to extract a crest value for each of the code lengths on the basis of the decoded data and a type of the predetermined partial response.

摘要翻译： 提供一种光盘装置，其使用PRML方法再现具有以多个码长度记录的数据的光盘，该光盘装置包括：AD转换单元，其适于将光盘的再现信号转换为多个 值数字信号; 波形均衡单元，其适于基于预定的部分响应对多值数字信号执行波形均衡以产生均衡的再现信号; 解码单元，适于从所述均衡的再现信号中生成与记录在所述光盘上的数据相对应的解码数据; 以及波峰值提取单元，其适于基于解码数据和预定部分响应的类型来提取每个码长的波峰值。

公开(公告)号：US20080285402A1

公开(公告)日：2008-11-20

申请号：US12121738

申请日：2008-05-15

申请人： Takahiko Mihara ,  Tatsuji Ashitani ,  Yuichi Ito

发明人： Takahiko Mihara ,  Tatsuji Ashitani ,  Yuichi Ito

IPC分类号： G11B20/10

CPC分类号： G11B7/1267

摘要： According to one embodiment, there is provided an optical disc apparatus including: a recording unit forming a mark and a space on the optical disc by using a laser beam having a set recording power level and, thus, recording data on an optical disc; a reproduction unit reproducing the mark and the space formed on the optical disc; a change amount calculating unit calculating an amount of change in an amplitude of readout signal for the space reproduced by the reproduction unit; and a recording power determining unit determining an optimal recording power level of the laser beam so as to set the calculated amount of change in the amplitude of the readout signal within a predetermined range.

摘要翻译： 根据一个实施例，提供一种光盘装置，包括：记录单元，通过使用具有设定的记录功率电平的激光束，从而在光盘上记录数据，在光盘上形成标记和空间; 再现单元，再现标记和形成在光盘上的空间; 改变量计算单元，计算由再现单元再现的空间的读出信号的幅度变化量; 以及记录功率确定单元，确定激光束的最佳记录功率电平，以将计算出的读出信号的幅度的变化量设定在预定范围内。

公开(公告)号：US20080175120A1

公开(公告)日：2008-07-24

申请号：US11960431

申请日：2007-12-19

申请人： Tatsuji Ashitani ,  Yuichi Ito ,  Takahiko Mihara

发明人： Tatsuji Ashitani ,  Yuichi Ito ,  Takahiko Mihara

IPC分类号： G11B27/36

CPC分类号： G11B20/182 ,  G11B7/00456 ,  G11B20/10009 ,  G11B20/10055 ,  G11B20/10481

摘要： To form recording waveforms optimal to all optical discs including unknown discs and inferior quality discs. In an optical disc apparatus according to the present invention, a CPU changes a previously set pulse width at a predetermined code length by a predetermined value and controls an optical pickup, an RF amplifier, an evaluation index measurement circuit, and the like. With use of the changed pulse width, an asymmetry of a reproduction signal at the time of recording and reproducing test data on the optical disc is measured. On the basis of the measured asymmetry of the reproduction signal, a correction value for correcting the previously set pulse width at the predetermined code length is calculated. On the basis of the calculated correction value, the pulse width at the predetermined code length is corrected.

摘要翻译： 形成对包括未知光盘和劣质光盘的所有光盘最佳的记录波形。 在根据本发明的光盘装置中，CPU以预定的代码长度将先前设定的脉冲宽度改变预定值，并且控制光学拾取器，RF放大器，评价指标测量电路等。 通过使用改变的脉冲宽度，测量在光盘上记录和再现测试数据时的再现信号的不对称性。 基于再现信号的测量不对称性，计算用于校正预定码长的预先设定的脉冲宽度的校正值。 根据计算出的校正值，校正规定码长的脉冲宽度。

公开(公告)号：US20080144456A1

公开(公告)日：2008-06-19

申请号：US11957306

申请日：2007-12-14

申请人： Takahiko Mihara ,  Tatsuji Ashitani

发明人： Takahiko Mihara ,  Tatsuji Ashitani

IPC分类号： G11B7/0045

CPC分类号： G11B7/00458 ,  G11B7/1267 ,  G11B20/10055 ,  G11B20/10222 ,  G11B20/10481 ,  G11B20/1403 ,  G11B2220/2537

摘要： To expand a capture range of a PLL circuit when a recording parameter optimal to a disc is decided when a PRML identification system is used. In an optical disc apparatus according to the present invention, the PLL circuit generates a reproduction clock signal based on a reproduction signal. A CPU determines whether a reproduction signal used when test data recorded on an optical disc is reproduced is locked in the PLL circuit or not. A spindle motor control circuit is controlled to change a speed of the disc to be increased when it is determined that the reproduction signal used when the test data is reproduced is not locked in the PLL circuit. The CPU decides a recording parameter and a write strategy correction value calculated on the basis of the reproduction signal used when the test data recorded on the predetermined area of the disc is reproduced.

摘要翻译： 当使用PRML识别系统时，当决定对光盘最佳的记录参数时，扩展PLL电路的捕获范围。 在根据本发明的光盘装置中，PLL电路基于再现信号产生再现时钟信号。 CPU确定在再现记录在光盘上的测试数据时使用的再现信号是否锁定在PLL电路中。 当确定当再现测试数据时使用的再现信号未被锁定在PLL电路中时，主轴电动机控制电路被控制以改变要增加的盘的速度。 当再现记录在盘的预定区域上的测试数据时，CPU根据使用的再现信号来决定记录参数和写入策略校正值。

公开(公告)号：US09148595B2

公开(公告)日：2015-09-29

申请号：US13617113

申请日：2012-09-14

申请人： Shiroshi Kanemitsu ,  Tatsuji Ashitani ,  Miho Iizuka

发明人： Shiroshi Kanemitsu ,  Tatsuji Ashitani ,  Miho Iizuka

IPC分类号： H04N5/335 ,  H04N5/353 ,  H04N5/369 ,  H04N5/355 ,  G01C3/18 ,  G03B13/36

CPC分类号： H04N5/369 ,  G01C3/18 ,  G03B13/36 ,  H04N5/3535 ,  H04N5/35554

摘要： According to one embodiment, a solid state imaging device includes a first image sensor, a second image sensor, and an imaging processing circuit. A plurality of photoelectric conversion units are arranged in each of the first image sensor and the second image sensor. All of the photoelectric conversion units are configured to include pixels with different charge storage times. The imaging processing circuit includes an output combining unit. The output combining unit combines outputs by the pixels with different charge storage times with respect to each of the photoelectric conversion units.

摘要翻译： 根据一个实施例，固态成像装置包括第一图像传感器，第二图像传感器和成像处理电路。 多个光电转换单元布置在第一图像传感器和第二图像传感器的每一个中。 所有光电转换单元被配置为包括具有不同电荷存储时间的像素。 成像处理电路包括输出组合单元。 输出组合单元将由像素输出的相对于每个光电转换单元的不同电荷存储时间进行组合。