公开(公告)号：US07573798B2

公开(公告)日：2009-08-11

申请号：US11435895

申请日：2006-05-18

申请人： Masakuni Yamamoto ,  Yasuyuki Miyaoka

发明人： Masakuni Yamamoto ,  Yasuyuki Miyaoka

IPC分类号： G11B5/09

CPC分类号： G11B7/005 ,  G11B7/24088 ,  G11B20/1496

摘要： A multi-level information reproducing method is provided which can increase the degree of separation between distributions of cell boundary values to thereby improve the accuracy of reproduction. Specifically, in a method of reproducing multi-level information recorded on a track of an optical information recording medium by virtually providing cells at equal intervals and by varying a width of an information pit in a track direction or an area of an information pit, a cell boundary value (a value obtained by sampling a reproduced signal when a center of a light spot is located at a boundary of cells) is corrected based on cell center values of two cells adjacent to the boundary (a value obtained by sampling a reproduced signal when the center of the light spot is located at a center of a cell), and the multi-level information is reproduced based on the corrected cell boundary value.

摘要翻译： 提供了可以增加单元边界值分布之间的分离程度从而提高再现精度的多级信息再现方法。 具体地，在通过以相等的间隔虚拟地提供单元并且通过改变信息凹坑的轨道方向或信息凹坑的区域的宽度来再现记录在光学信息记录介质的轨道上的多级信息的方法中， 基于与边界相邻的两个单元的单元格中心值（通过对再现信号进行取样而得到的值）来校正单元格边界值（通过对光点的中心位于单元的边界时对再现信号进行采样而获得的值） 当光点的中心位于单元的中心时），并且基于校正的单元边界值再现多级信息。

公开(公告)号：US07474603B2

公开(公告)日：2009-01-06

申请号：US10650814

申请日：2003-08-29

申请人： Hiroshi Maegawa

发明人： Hiroshi Maegawa

IPC分类号： G11B7/00

CPC分类号： G11B7/0941 ,  G11B7/00456 ,  G11B7/0053 ,  G11B7/0062 ,  G11B7/24088

摘要： A multilevel information recording apparatus is disclosed, which includes a control unit that inputs signals to a strategy generating unit and a laser drive unit based on the multilevel information being recorded, a signal indicating the playback and recording state, and a clock signal indicating the cell frequency that is in synch with the multilevel information. The strategy generating unit generates a pulse signal in accordance with the timing of the laser beam emission of a write pulse, an off pulse, a bias pulse, and a space pulse based on the signal from the control unit and the clock signal. The laser drive unit determines the driving current of a laser light source based on a delayed playback signal/delayed recording signal that is obtained by delaying the playback signal/recording signal for a processing time of the strategy generating unit, a pulse signal from the strategy generating unit indicating the emission timing of the pulses, and an intensity signal predetermined for each pulse.

摘要翻译： 公开了一种多级信息记录装置，其包括：控制单元，其基于正在记录的多级信息将信号输入到策略生成单元和激光驱动单元，指示回放和记录状态的信号以及指示单元的时钟信号 与多级信息同步的频率。 策略产生单元根据来自控制单元和时钟信号的信号根据写入脉冲，截止脉冲，偏置脉冲和空间脉冲的激光束发射的定时产生脉冲信号。 激光驱动单元基于通过将策略生成单元的处理时间的重放信号/记录信号延迟而获得的延迟的重放信号/延迟记录信号来确定激光光源的驱动电流，来自策略的脉冲信号 指示脉冲的发射定时的发生单元和针对每个脉冲预定的强度信号。

公开(公告)号：US20080279087A1

公开(公告)日：2008-11-13

申请号：US10577558

申请日：2005-06-01

申请人： Masakuni Yamamoto

发明人： Masakuni Yamamoto

IPC分类号： G11B7/00

CPC分类号： G11B7/24088 ,  G11B7/005 ,  G11B7/24085

摘要： A method for recording and reproducing information at multiple levels comprises steps of recording an information-coding pit at one of multiple levels in each of recording domains placed successively on a track of an optical information recording medium by utilizing combination of a width in a track direction of an information-coding pit and a position in the track direction of the information-coding pit, detecting reproduced signals at two or more positions in the recording domain, and reproducing the information according to judgment of the width of the information pit by comparison of the reproduced signals with a predetermined threshold width value and judgment of the shift direction and/or shift degree by comparison with levels of the plural reproduced signals.

摘要翻译： 一种用于在多个级别记录和再现信息的方法包括以下步骤：通过利用轨道方向上的宽度的组合，在连续放置在光学信息记录介质的轨道上的每个记录域中的多个级别之一记录信息编码凹坑 信息编码凹坑的信息编码凹坑的位置和信息编码凹坑的轨道方向上的位置，检测记录区域中的两个或更多位置的再现信号，并根据信息凹坑宽度的判断再现信息 具有预定阈值宽度值的再现信号，并且通过与多个再现信号的电平进行比较来判断移位方向和/或移位程度。

公开(公告)号：US20080165634A1

公开(公告)日：2008-07-10

申请号：US12025413

申请日：2008-02-04

申请人： Juliana H. J. Brooks ,  Mark G. Mortenson

发明人： Juliana H. J. Brooks ,  Mark G. Mortenson

IPC分类号： G11B5/09

CPC分类号： G11B5/00 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/012 ,  G11B5/02 ,  G11B5/09 ,  G11B7/00 ,  G11B7/00455 ,  G11B7/0052 ,  G11B7/0065 ,  G11B7/127 ,  G11B7/128 ,  G11B7/1381 ,  G11B7/24088 ,  G11B9/00 ,  G11B2005/0002 ,  G11B2005/3996 ,  G11C13/06

摘要： The present invention relates generally to the storage of information on magnetic and/or optical storage media by using one or more novel approaches alone or in combination. These novel approaches are capable of using at least one code which may comprise more than two values (i.e., more than a “0” and a “1”). A first series of approaches for the storage of information applies generally to optical storage/retrieval systems (e.g., CD's, DVD's, etc.); while a second series of approaches applies generally to electric and/or magnetic storage/retrieval systems (e.g., magnetic, magneto-optic, etc.). Each series of approaches is capable of storing information in one or more codes, wherein such approaches permit, if desired, the use of at least one higher order code which is different from the traditional binary code of “0's” and “1's” currently utilized for the storage of digital information. Said at least one higher order code may comprise three or more optical and/or magnetic values or bits that are used to represent, for example, ASCII or Unicode characters that are currently represented predominantly by the traditional binary code. This higher order code may also be an analog or analog-like code.

摘要翻译： 本发明一般涉及通过单独或组合使用一种或多种新颖方法来存储关于磁性和/或光学存储介质的信息。 这些新颖的方法能够使用至少一个可以包括多于两个值（即大于“0”和“1”）的代码。 用于存储信息的第一系列方法通常适用于光学存储/检索系统（例如CD，DVD等）; 而第二系列方法通常适用于电和/或磁存储/检索系统（例如，磁性，磁光学等）。 每一系列方法能够将信息存储在一个或多个代码中，其中如果需要，这样的方法允许使用与当前使用的“0”和“1”的传统二进制代码不同的至少一个更高阶代码 用于存储数字信息。 所述至少一个较高阶代码可以包括用于表示例如主要由传统二进制代码表示的ASCII或Unicode字符的三个或更多个光学和/或磁性值或位。 该较高阶代码也可以是模拟或类似模拟的代码。

公开(公告)号：US20080159100A1

公开(公告)日：2008-07-03

申请号：US12046064

申请日：2008-03-11

申请人： Akemi HIROTSUNE ,  Harukazu Miyamoto ,  Takeshi Maeda

发明人： Akemi HIROTSUNE ,  Harukazu Miyamoto ,  Takeshi Maeda

IPC分类号： G11B5/58

CPC分类号： G11B7/00736 ,  G11B7/0053 ,  G11B7/007 ,  G11B7/24038 ,  G11B7/24076 ,  G11B7/24079 ,  G11B7/24082 ,  G11B7/24088 ,  G11B7/241 ,  G11B7/2534 ,  G11B7/259 ,  G11B2007/0013 ,  G11B2007/24308 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B2007/25715 ,  G11B2007/25716

摘要： An information recording medium including a plurality of layers for recording or reproduction of information by irradiation of light and a tracking error signal for determining a layer number being recorded in each of the plurality of layers. A modulation of the tracking error signal is different in each of the plurality of layers.

摘要翻译： 一种信息记录介质，包括用于通过照射光记录或再现信息的多个层和用于确定记录在多个层中的层中的层数的跟踪误差信号。 跟踪误差信号的调制在多个层中的每一层中是不同的。

公开(公告)号：US07391681B2

公开(公告)日：2008-06-24

申请号：US11673735

申请日：2007-02-12

申请人： Tetsuya Kondo

发明人： Tetsuya Kondo

IPC分类号： G11B7/24

CPC分类号： G11B20/00086 ,  G11B7/0053 ,  G11B7/0079 ,  G11B7/24012 ,  G11B7/24038 ,  G11B7/24079 ,  G11B7/24082 ,  G11B7/24088 ,  G11B11/10578 ,  G11B11/10584 ,  G11B20/0013 ,  G11B20/10

摘要： An information recording medium having at least a read only area and a recording and reproducing area is composed of at least: a substrate; a recording layer formed on the substrate so as to record and reproduce information; and a light transmission layer having transparency formed on the recording layer. The information recording medium is further characterized in that a wobbling groove corresponding to the read only area and another wobbling groove corresponding to the recording and reproducing area is formed on the substrate without overlapping with each other, the recording and light transmitting layers are continuously adhered over at least two areas of the read only area and the recording and reproducing area, reflectivity of the recording layer is more than 5%, and a push-pull signal output T3 reproduced from the read only area and another push-pull signal output T4 reproduced from the recording and reproducing area before recording satisfies relations of T3≧0.1, T4≧0.1 and 1.5≧T3/T4≧0.5.

公开(公告)号：US07391679B2

公开(公告)日：2008-06-24

申请号：US11611231

申请日：2006-12-15

申请人： Tetsuya Kondo

发明人： Tetsuya Kondo

IPC分类号： G11B7/24

CPC分类号： G11B20/00086 ,  G11B7/0053 ,  G11B7/0079 ,  G11B7/24012 ,  G11B7/24038 ,  G11B7/24079 ,  G11B7/24082 ,  G11B7/24088 ,  G11B11/10578 ,  G11B11/10584 ,  G11B20/0013 ,  G11B20/10

摘要： An information recording medium having at least a read only area and a recording and reproducing area is composed of at least: a substrate; a recording layer formed on the substrate so as to record and reproduce information; and a light transmission layer having transparency formed on the recording layer. The information recording medium is further characterized in that a wobbling groove corresponding to the read only area and another wobbling groove corresponding to the recording and reproducing area is formed on the substrate without overlapping with each other, the recording and light transmitting layers are continuously adhered over at least two areas of the read only area and the recording and reproducing area, reflectivity of the recording layer is more than 5%, and a push-pull signal output T3 reproduced from the read only area and another push-pull signal output T4 reproduced from the recording and reproducing area before recording satisfies relations of T3≧0.1, T4≧0.1 and 1.5≧T3/T4≧0.5.

摘要翻译： 至少具有只读区域和记录再现区域的信息记录介质至少包括：基板; 记录层，形成在所述基板上，以便记录和再现信息; 以及在记录层上形成透明的透光层。 该信息记录介质的特征还在于，在基板上形成对应于只读区域的摆动槽和与记录和再现区域相对应的另一个摆动槽，而不会彼此重叠，记录和透光层连续地粘附在 仅读区域和记录和再现区域的至少两个区域，记录层的反射率大于5％，并且从只读区域再现的推挽信号输出T 3和另一个推挽信号输出T 在记录之前从记录和再现区再现的图4满足T 3> = 0.1，T 4> = 0.1和1.5> = T 3 / T 4> = 0.5的关系。

公开(公告)号：US07359303B2

公开(公告)日：2008-04-15

申请号：US10535319

申请日：2003-11-14

申请人： Chandra Mohan ,  James Zhiming Zhang

发明人： Chandra Mohan ,  James Zhiming Zhang

IPC分类号： G11B5/09

CPC分类号： H04L25/4902 ,  G11B5/012 ,  G11B5/09 ,  G11B7/24085 ,  G11B7/24088 ,  G11B20/10009 ,  G11B20/1411 ,  G11B20/1426 ,  H03M5/08

摘要： An asynchronous transfer mode digital document delivery system is provided. A customer premise unit is configured to permit a customer to order and receive a data stream. A buffer is coupled to the customer premise unit to store the data stream before transmitting the data stream to a customer. A server includes digital documents stored thereon for delivery to customers through a switched ATM network. A control mechanism is employed to control a data rate of the data stream between the server and the buffer to ensure maintenance of a steady data stream from the customer premise unit to a customer during a loss of a physical layer between the server and the customer premise unit.

摘要翻译： 提供异步传输模式数字文档传送系统。 客户驻地单元被配置为允许客户订购和接收数据流。 在将数据流发送给客户之前，将缓冲器耦合到客户驻地单元以存储数据流。 服务器包括存储在其上的数字文档，以通过交换式ATM网络传送给客户。 使用控制机制来控制服务器和缓冲器之间的数据流的数据速率，以确保在服务器和客户端之间的物理层丢失期间维护从客户驻地单元到客户的稳定数据流 单元。

公开(公告)号：US20080019238A1

公开(公告)日：2008-01-24

申请号：US11570783

申请日：2005-06-21

申请人： Erwin Meinders ,  Elise Rodenburg

发明人： Erwin Meinders ,  Elise Rodenburg

IPC分类号： G11B7/00

CPC分类号： G11B7/261 ,  G11B7/24088 ,  G11B7/242 ,  G11B7/2531 ,  G11B7/257 ,  G11B7/2575 ,  G11B2007/25708 ,  G11B2007/2571 ,  G11B2007/25713

摘要： The present invention relates to a record carrier (10) for creating a multi-level ROM optical medium, wherein the record carrier 10 comprises a first recording layer (12) and at least a second recording layer (14). In accordance with the invention between said first recording layer (12) and said second recording layer (14) there is provided a physical barrier (16) leading to discrete pit depths. Furthermore, the invention relates to two methods for writing a record carrier to create a multi-level ROM optical medium.

摘要翻译： 本发明涉及一种用于创建多级ROM光学介质的记录载体（10），其中记录载体10包括第一记录层（12）和至少第二记录层（14）。 根据本发明在所述第一记录层（12）和所述第二记录层（14）之间，提供了导致离散凹坑深度的物理屏障（16）。 此外，本发明涉及用于写入记录载体以创建多级ROM光学介质的两种方法。

公开(公告)号：US07248558B2

公开(公告)日：2007-07-24

申请号：US10504322

申请日：2003-12-26

申请人： Seiji Kobayashi ,  Jin Pan

发明人： Seiji Kobayashi ,  Jin Pan

IPC分类号： G11B7/24

CPC分类号： G11B20/00086 ,  G11B7/0053 ,  G11B7/00736 ,  G11B7/24088 ,  G11B7/261 ,  G11B20/00405 ,  G11B20/00601 ,  G11B23/28

摘要： Second digital information serving as copyright protection information can be stably and reliably read without any effect of a defect or pit missing on a disk-shaped recording medium. The second digital information is recorded onto a disk-shaped recording medium by wobbling a pit sequence recorded as a first signal. The second digital information is recorded so that a plurality of bits constituting the second digital information are allocated in a unit period of an identical sync signal contained in the first signal. During playback, the plurality of bits constituting the recorded second digital information are read a plurality of times every unit period of the sync signal, and information of the read bits is then integrated. Thus, information from a large number of wobbled pits across unit periods of a plurality of sync signals can be integrated to determine the bit values.

摘要翻译： 可以稳定且可靠地读取作为版权保护信息的第二数字信息，而不会在盘状记录介质上产生缺陷或缺陷的缺陷。 通过摆动记录为第一信号的凹坑序列将第二数字信息记录在盘形记录介质上。 记录第二数字信息，使得构成第二数字信息的多个比特分配在包含在第一信号中的相同同步信号的单位周期内。 在回放期间，构成所记录的第二数字信息的多个比特在同步信号的每单位周期被读取多次，然后将读取的比特的信息进行积分。 因此，可以集成多个同步信号的单位周期中的大量摆动凹坑的信息以确定位值。