公开(公告)号：US20230028064A1

公开(公告)日：2023-01-26

申请号：US17929301

申请日：2022-09-01

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： MASAKO YOKOYAMA ,  NAOYA SAKATA ,  KENJI TAGASHIRA ,  KOTA ANDO

IPC分类号： G11B7/004 ,  C07C63/66 ,  C07C69/76 ,  C07C43/215 ,  C07C22/08

摘要： A light-absorbing material includes a compound represented by the formula (1) below. In the formula (1), L1 to L3 are each independently represented by the formula (2) or (3) below:

公开(公告)号：US09305647B2

公开(公告)日：2016-04-05

申请号：US14532196

申请日：2014-11-04

申请人： Huawei Technologies Co., Ltd.

发明人： Yansong Li

IPC分类号： G11C8/08 ,  G11C7/06 ,  G11C13/00 ,  G11B7/004 ,  G11B11/105

CPC分类号： G11C13/0069 ,  G11B7/004 ,  G11B11/10504 ,  G11B11/10597 ,  G11C13/0004 ,  G11C13/003 ,  G11C13/0064 ,  G11C2013/0066

摘要： A write operation method for a phase change memory (PCM) is disclosed. The method includes when a PCM performs a write operation, generating a corresponding voltage pulse signal according to to-be-written data, and applying the voltage pulse signal to a phase change material included in a phase change storage unit corresponding to the to-be-written data and applying the voltage pulse signal to a voltage divider resistor serially connected to the phase change material; comparing voltage values at both ends of a sampling resistor with a threshold voltage to generate an indicator value; determining, according to the indicator value, whether data that is stored in the phase change storage unit and is corresponding to the indicator value is the same as the to-be-written data; and skipping writing if the same; or writing if different, thus reducing the delay time of writing data into the phase change storage unit.

摘要翻译： 公开了一种用于相变存储器（PCM）的写入操作方法。 该方法包括当PCM执行写入操作时，根据写入的数据产生相应的电压脉冲信号，并将电压脉冲信号施加到相应于待更改的相变存储单元中的相变材料 写入数据并将电压脉冲信号施加到串联连接到相变材料的分压电阻器; 将采样电阻两端的电压值与阈值电压进行比较，生成指标值; 根据指标值确定存储在相变存储单元中并且与指示符值相对应的数据是否与待写入数据相同; 并跳过写作如果相同; 或如果不同则进行写入，从而减少将数据写入相变存储单元的延迟时间。

公开(公告)号：US09293168B2

公开(公告)日：2016-03-22

申请号：US14167369

申请日：2014-01-29

申请人： Hitachi Consumer Electronics Co., Ltd. ,  Hitachi-LG Data Storage, Inc.

发明人： Yoshitaka Morimoto ,  Soichiro Eto ,  Koichi Watanabe

IPC分类号： G11B7/004 ,  G11B20/18 ,  G11B20/10

CPC分类号： G11B20/182 ,  G11B20/10305 ,  G11B20/10333 ,  G11B20/10398

摘要： When data is recorded on an optical disc, and stored for a long period of time, there is a need to periodically evaluate whether a quality of the recorded data is determined with time, or not. If the signal quality is lower than a given level as an evaluation result, a work for moving the data to a brand-new optical disc is required. However, in periodical inspection, if the number of optical discs is enormous, a large amount of time is required to evaluate all data recorded on the optical disc. In recording user data on the optical disc, a signal of a particular pattern having a lifetime shorter than a reference lifetime of the user data is recorded in a given area of the optical disc in advance, the particular pattern signal is reading at given time intervals, and processing on the user data is determined on the basis of the evaluation result of the signal quality.

摘要翻译： 当数据被记录在光盘上并且长时间存储时，需要周期性地评估是否随时间确定记录数据的质量。 如果信号质量低于给定的水平作为评估结果，则需要将数据移动到全新光盘的工作。 然而，在定期检查中，如果光盘数量巨大，则需要大量的时间来评估记录在光盘上的所有数据。 在光盘上记录用户数据时，预先将具有比用户数据的参考寿命短的寿命的特定模式的信号预先记录在光盘的给定区域中，特定模式信号以给定时间间隔读取 并且基于信号质量的评估结果确定对用户数据的处理。

公开(公告)号：US20120250486A1

公开(公告)日：2012-10-04

申请号：US13514278

申请日：2010-11-19

申请人： Gael Pilard

发明人： Gael Pilard

IPC分类号： G11B7/004

CPC分类号： G11B7/005 ,  G11B7/0045

摘要： A method and an apparatus for reading data from or writing data to an optical recording medium is described, the data being stored as marks having different lengths. Marks having a length below the limit of diffraction at a first wavelength are read or written with the first wavelength, whereas marks having a length above the limit of diffraction at the first wavelength are read or written with a second wavelength larger than the first wavelength.

摘要翻译： 描述了一种用于从光学记录介质读取数据或向其写入数据的方法和装置，该数据被存储为具有不同长度的标记。 以第一波长读取或写入具有低于第一波长的衍射极限的标记，而具有高于第一波长的衍射极限的标记被读取或写入具有大于第一波长的第二波长。

公开(公告)号：US08279725B2

公开(公告)日：2012-10-02

申请号：US12483655

申请日：2009-06-12

申请人： Norio Tanaka

发明人： Norio Tanaka

IPC分类号： G11B7/004

CPC分类号： G11B7/14 ,  G11B20/10 ,  G11B20/1217 ,  G11B2020/10537 ,  G11B2020/10916 ,  G11B2020/1297 ,  G11B2220/2537

摘要： A control device includes n optical pickups, n being an integer greater than one; a dividing unit configured to divide one block into n pieces of data, the one block being a predetermined amount of data; and a control unit configured to control the n optical pickups to record the n pieces of data obtained by the dividing unit on a predetermined recording medium.

摘要翻译： 控制装置包括n个光学拾取器，n是大于1的整数; 分割单元，被配置为将一个块划分成n个数据块，所述一个块是预定量的数据; 以及控制单元，被配置为控制所述n个光学拾取器将由所述分割单元获得的n个数据记录在预定的记录介质上。

公开(公告)号：US08254234B2

公开(公告)日：2012-08-28

申请号：US13207570

申请日：2011-08-11

申请人： Harumitsu Miyashita ,  Kohei Nakata

发明人： Harumitsu Miyashita ,  Kohei Nakata

IPC分类号： G11B7/004

CPC分类号： G11B7/013 ,  G11B20/10009 ,  G11B20/10046 ,  G11B20/10055 ,  G11B20/1012 ,  G11B20/10296 ,  G11B20/10481 ,  G11B2220/216 ,  G11B2220/2541

摘要： A method for rating an information recording medium according to the present invention includes the steps of: receiving a digital read signal, which has been generated based on an analog read signal representing information that has been read from the information recording medium, and shaping the waveform of the digital read signal; subjecting the shaped digital read signal to maximum likelihood decoding, thereby generating a binarized signal showing a result of the maximum likelihood decoding; and calculating the quality of the digital read signal based on the shaped digital read signal and the binarized signal. If the quality of the read signal is calculated by a PRML method in which a number of zero-cross portions are included in a merging path of a minimum difference metric, the quality is calculated by using only a state transition pattern in which only one zero-cross portion is included in a merging path of a non-minimum difference metric.

摘要翻译： 根据本发明的用于对信息记录介质进行评级的方法包括以下步骤：接收基于表示从信息记录介质读取的信息的模拟读取信号产生的数字读取信号，并且对波形进行整形 的数字读取信号; 对成形数字读取信号进行最大似然解码，从而生成表示最大似然解码结果的二值化信号; 并根据成形数字读取信号和二值化信号计算数字读取信号的质量。 如果通过PRML方法计算读取信号的质量，其中在最小差值度量的合并路径中包括多个零交叉部分，则仅通过仅使用一个零的状态转换模式来计算质量 - 交叉部分被包括在非最小差值度量的合并路径中。

公开(公告)号：US08169871B2

公开(公告)日：2012-05-01

申请号：US12897654

申请日：2010-10-04

申请人： Theodore D. Rees ,  Akihiro Asada

发明人： Theodore D. Rees ,  Akihiro Asada

IPC分类号： G11B7/004

CPC分类号： G11B7/126 ,  G11B7/0062

摘要： Provided herein are hybrid laser diode drivers (LDDs) that drive a laser diode in response to receiving enable signals from a controller. In accordance with specific embodiments, a hybrid LDD includes a read channel to selectively output a read current, one or more write channel each to selectively output a write current, and an oscillator channel to selectively output an oscillator current. Additionally, in specific embodiments the hybrid LDD includes a state machine that receives the enable signals from the controller, and based on the enable signals, controls timing of the currents output by the read, write and oscillator channels.

摘要翻译： 本文提供的是混合激光二极管驱动器（LDD），其响应于来自控制器的使能信号而驱动激光二极管。 根据具体实施例，混合LDD包括读通道，用于选择性地输出读取电流，每个写入通道以选择性地输出写入电流，以及振荡器通道以选择性地输出振荡器电流。 此外，在具体实施例中，混合LDD包括状态机，其接收来自控制器的使能信号，并且基于使能信号来控制由读取，写入和振荡器通道输出的电流的定时。

公开(公告)号：US08094533B2

公开(公告)日：2012-01-10

申请号：US13100033

申请日：2011-05-03

申请人： Theodore D. Rees ,  Akihiro Asada ,  D. Stuart Smith

发明人： Theodore D. Rees ,  Akihiro Asada ,  D. Stuart Smith

IPC分类号： G11B7/004

CPC分类号： G11B7/126 ,  G11B7/0062

摘要： A hybrid LDD includes a read channel to selectively output a read current, a plurality of write channels, each to selectively output a different write current, and an oscillator channel to selectively output an oscillator current. Additionally, the hybrid LDD includes programmable LDD controller that receives the plurality of enable signals from the external controller, and based on the enable signals, controls timing of the currents output by at least the write channels. The programmable LDD controller can also control timing of the currents output by the read and oscillator channels, based on the enable signals. Further and alternative embodiments are also provided.

摘要翻译： 混合LDD包括用于选择性地输出读取电流的读取通道，多个写入通道，每个用于选择性地输出不同的写入电流，以及振荡器通道以选择性地输出振荡器电流。 此外，混合LDD包括可编程LDD控制器，其从外部控制器接收多个使能信号，并且基于使能信号，控制由至少写入通道输出的电流的定时。 可编程LDD控制器还可以基于使能信号来控制由读取和振荡器通道输出的电流的定时。 还提供了进一步的和备选的实施例。

公开(公告)号：US08028310B2

公开(公告)日：2011-09-27

申请号：US12434035

申请日：2009-05-01

申请人： Satoshi Hayakawa

发明人： Satoshi Hayakawa

IPC分类号： G11B7/004

CPC分类号： G11B7/0933 ,  G11B7/08582 ,  G11B7/0935 ,  G11B7/0956 ,  G11B2007/0006

摘要： An optical pickup includes a moving base moved in a radial direction of a disk-like recording medium mounted on a disk table, and an objective lens drive device disposed on the base and including an objective lens. The drive device includes a fixed block fixed to the base, a movable block including the lens and a lens holder and moved in focusing and tracking directions, supporting springs connecting the fixed and movable blocks, focusing magnets moving the movable block in the focusing direction, tracking magnets moving the movable block in the tracking direction and each having two magnetized poles, focusing coils facing the focusing magnets, and tracking coils facing the tracking magnets and spaced apart in the tracking direction. The north and south poles of the tracking magnet are adjacent in the tracking direction. The boundary between the poles is formed by a line segment not being one straight line.

摘要翻译： 光学拾取器包括沿安装在盘台上的盘状记录介质的径向移动的移动基座和设置在基座上并包括物镜的物镜驱动装置。 所述驱动装置包括：固定在所述基座上的固定块，包括所述透镜的移动块和透镜保持件，并且在聚焦和跟踪方向上移动;支撑连接固定块和可移动块的弹簧，聚焦磁体沿着聚焦方向移动可动块; 跟踪磁体沿跟踪方向移动可移动块，并且每个磁体具有两个磁化极，与聚焦磁体相对的聚焦线圈，以及面向跟踪磁体的跟踪线圈，并在跟踪方向上间隔开。 跟踪磁体的北极和南极在跟踪方向上相邻。 极之间的边界由不是一条直线的线段形成。

公开(公告)号：US07978584B2

公开(公告)日：2011-07-12

申请号：US11646645

申请日：2006-12-28

申请人： Nam-kyun Tak ,  Chang-hyun Kim ,  Yeong-taek Lee ,  Jae-woong Hyun

发明人： Nam-kyun Tak ,  Chang-hyun Kim ,  Yeong-taek Lee ,  Jae-woong Hyun

IPC分类号： G11B7/004

CPC分类号： G11B7/24088 ,  G11B7/1384 ,  G11B7/24

摘要： There is provided a method and device for reading, writing, or both, data from or to a pattern recognition type optical memory having a light transmittable substrate. Patterns can be formed in the pattern recognition type optical memory from light images representing the data. An optical memory reading device comprises a light source, an image detecting unit for detecting images corresponding to the patterns and generating image signals converted by an optical/electric converter into electric signals. An optical memory writing device comprises a light source, an electric/optical converter for receiving an electric signal corresponding to the data and converting the electric signal into an image signal, and an image generation unit for receiving the light emitted from the light source and the image signal and generating light images corresponding to the image signal, wherein the images are configured to form the patterns on the light transmittable substrate.

摘要翻译： 提供了一种用于从具有可透光衬底的图案识别型光学存储器读取或写入数据的方法和装置。 可以从表示数据的光图像在图案识别型光学存储器中形成图案。 光学存储器读取装置包括光源，用于检测与图案对应的图像的图像检测单元，并且将由光/电转换器转换的图像信号生成为电信号。 一种光学存储器写入装置，包括光源，用于接收对应于数据的电信号并将电信号转换为图像信号的电/光转换器，以及用于接收从光源发射的光和 图像信号并产生对应于图像信号的光图像，其中图像被配置为在可透光基板上形成图案。