公开(公告)号：US06765851B2

公开(公告)日：2004-07-20

申请号：US09817304

申请日：2001-03-26

申请人： Tetsuji Kawashima ,  Futoshi Tsukada ,  Kunihiko Miyake ,  Shinji Ohta ,  Masazumi Shiozawa

发明人： Tetsuji Kawashima ,  Futoshi Tsukada ,  Kunihiko Miyake ,  Shinji Ohta ,  Masazumi Shiozawa

IPC分类号： G11B700

CPC分类号： G11B7/126 ,  G11B7/007

摘要： An optical disc having a power calibration area for calibrating the power of a data recording laser beam. The power calibration area is provided at an inner peripheral part of the disc and has test areas and count areas. The test areas are provided to accomplish trial writing of data, and the count areas are provided to record data representing the use condition of the test areas. Data is recorded on the optical disc, while calibrating the data recording laser beam. The number of the test areas is increased in accordance with an increase in the recording density of the optical disc. The optical disc may be a double-density CD. In this case, the disc has 800 to 1200 test areas. The test areas have the smallest possible size, and the count areas are provided in the smallest possible number. Therefore, the disc can have sufficiently large data regions. Thus, the power of the data recording laser beam can be therefore adjusted many times. The amount of data that can be recorded on the optical disc therefore increase.

摘要翻译： 具有用于校准数据记录激光束的功率的功率校准区域的光盘。 功率校准区域设置在光盘的内周部分，并具有测试区域和计数区域。 提供测试区域以完成数据的试写，并提供计数区域以记录表示测试区域的使用条件的数据。 数据记录在光盘上，同时校准数据记录激光束。 根据光盘的记录密度的增加，测试区域的数量增加。 光盘可以是双密度CD。 在这种情况下，光盘有800到1200个测试区域。 测试区域的尺寸尽可能小，并且计数区域以尽可能小的数量提供。 因此，盘可以具有足够大的数据区域。 因此，可以多次调整数据记录激光束的功率。 因此，可以记录在光盘上的数据量增加。

公开(公告)号：US06693855B2

公开(公告)日：2004-02-17

申请号：US09852574

申请日：2001-05-10

申请人： Tetsuji Kawashima ,  Yukio Shishido ,  Futoshi Tsukada ,  Kunihiko Miyake

发明人： Tetsuji Kawashima ,  Yukio Shishido ,  Futoshi Tsukada ,  Kunihiko Miyake

IPC分类号： G11B7007

CPC分类号： G11B27/24 ,  G11B7/00736 ,  G11B7/00745 ,  G11B7/08505 ,  G11B7/0938 ,  G11B7/1263 ,  G11B20/1426 ,  G11B27/3027 ,  G11B27/3063 ,  G11B2020/1269 ,  G11B2220/218 ,  G11B2220/2545

摘要： Physical addresses of the recording areas provided on an optical disc are represented in a time-axis data format and in a binary data format. The physical address value gradually increases from the inner part of the disc to the outer part of the disc, while the formats remain in one-to-one correspondence over the recording areas. The distance the optical head must move to reach a target recording area can therefore be calculated easily independently of where on the disc the optical head is located, enabling the optical head to quickly access the target recording area.

摘要翻译： 在光盘上提供的记录区的物理地址以时间轴数据格式和二进制数据格式表示。 物理地址值从盘的内部逐渐增加到盘的外部，而格式在记录区域上保持一一对应。 因此，光头必须移动以到达目标记录区域的距离可以容易地独立于光学头所在的盘的哪里，使光头能够快速地访问目标记录区域。

公开(公告)号：US06636461B2

公开(公告)日：2003-10-21

申请号：US09887036

申请日：2001-06-25

申请人： Futoshi Tsukada ,  Tetsuji Kawashima ,  Michihiko Iida

发明人： Futoshi Tsukada ,  Tetsuji Kawashima ,  Michihiko Iida

IPC分类号： G11B2108

CPC分类号： G11B27/329 ,  G11B7/08505 ,  G11B20/10009 ,  G11B27/105 ,  G11B27/11 ,  G11B27/24 ,  G11B27/3063 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2545 ,  G11B2220/65

摘要： A method and apparatus for information signals in which, in recording and/or reproducing information signals responsive to a request from a host device, a first address defined with the time domain information is converted into a second address defined with consecutive hexadecimal numbers and vice versa by way of reciprocal address conversion. Specifically, an uppermost order value in the time domain information in the first address and a second address value are converted reciprocally using a conversion table.

摘要翻译： 一种用于信息信号的方法和装置，其中在响应于来自主机设备的请求的信息信号的记录和/或再现中，将用时域信息定义的第一地址转换成用连续十六进制数定义的第二地址，反之亦然 通过互换地址转换。 具体地说，使用转换表将第一地址中的时域信息中的最高阶值和第二地址值进行相互转换。

公开(公告)号：US06600707B2

公开(公告)日：2003-07-29

申请号：US09814712

申请日：2001-03-23

申请人： Futoshi Tsukada

发明人： Futoshi Tsukada

IPC分类号： G11B700

CPC分类号： G11B27/329 ,  G11B7/0037 ,  G11B7/004 ,  G11B7/007 ,  G11B20/1217 ,  G11B27/24 ,  G11B27/3027 ,  G11B27/3063 ,  G11B2020/1229 ,  G11B2020/1231 ,  G11B2020/1271 ,  G11B2220/215 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2545

摘要： An optical disc having a data area in which information signals are recorded, a lead-in area and a lead-out area provided before and after the data area, and a program memory area for temporarily storing address information necessary for additionally writing information signals. A subcode Q of the lead-in area or a subcode Q of the program memory area is provided with identification information for identifying these subcodes Q. For example, the identification information is provided at least in one of address (ADR), track number (TNO), and zero (ZERO) constituting the subcode Q of the program memory area or the lead-in area. Thus, it is possible to discriminate the subcode Q of the program memory area and the subcode Q of the lead-in area securely and instantaneously.

摘要翻译： 具有记录有信息信号的数据区域的光盘，在数据区域之前和之后设置的导入区域和导出区域，以及用于临时存储额外写入信息信号所需的地址信息的程序存储区域。 为程序存储区域的导入区域或子代码Q的子代码Q提供有用于识别这些子码Q的识别信息。例如，识别信息至少提供在地址（ADR），轨道号（ TNO）和零（ZERO）构成程序存储区域或导入区域的子代码Q。 因此，可以安全地并且即时地识别程序存储区域的子代码Q和导入区域的子代码Q。

公开(公告)号：US06229772B1

公开(公告)日：2001-05-08

申请号：US09143220

申请日：1998-08-28

申请人： Eiji Kumagai ,  Kenji Nagashima ,  Futoshi Tsukada

发明人： Eiji Kumagai ,  Kenji Nagashima ,  Futoshi Tsukada

IPC分类号： G11B700

CPC分类号： G11B19/12

摘要： A laser light beam is illuminated via an objective lens on the signal surface of an optical disc and the objective lens is displaced by a servo processor along the optical axis for focussing search to generate focussing error signals by a RF block from a detected output of the laser light by the signal surface of the optical disc. Based on these focussing error signals, a system controller discriminates the types of the optical disc having different numbers of signal recording layers for setting an operating mode in keeping with the types of the optical disc.

摘要翻译： 通过物镜在光盘的信号表面上照射激光束，并且物镜由伺服处理器沿着光轴移位，用于聚焦搜索，以通过RF块从检测到的输出中产生聚焦误差信号 激光由光盘的信号表面。 基于这些聚焦误差信号，系统控制器鉴别具有不同数量的信号记录层的光盘的类型，以便根据光盘的类型来设置操作模式。

公开(公告)号：US5586098A

公开(公告)日：1996-12-17

申请号：US407966

申请日：1995-03-22

申请人： Norio Nishida ,  Futoshi Tsukada

发明人： Norio Nishida ,  Futoshi Tsukada

IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/007 ,  G11B7/125 ,  G11B11/105 ,  G11B19/00 ,  G11B20/12 ,  G11B20/14

CPC分类号： G11B7/126 ,  G11B19/00 ,  G11B20/1403 ,  G11B7/00745 ,  G11B11/10513 ,  G11B11/10595 ,  G11B20/1258

摘要： An optical disc apparatus using zone record system that successively records data in a plurality of zones without a time lag in switching zones is disclosed. A phase error signal is formed with a reproduced signal of a servo zone of an optical disc 1. A servo clock is generated by a servo PLL 8. Data PLLs 9a and 9b divide the frequency of the servo clock. The laser power of the servo zone is detected by a circuit 11a so as to perform a read ALPC operation. The record laser power is detected by a circuit 11b so as to perform a write ALPC operation. A DSP 14 compares the monitor values and a reference value and controls a bias value of the drive signal so that the detected value becomes equal to the reference value. In write mode, a laser device emits pulse laser light in response to the data clock. Since the write ALPC operation is performed for the next zone while it is performed for the present zone, one of the PLLs 9a and 9b generates data clock for the present zone. The other generates the data clock for the next zone. These data clocks are selectively supplied to the laser device.

摘要翻译： 公开了一种使用区域记录系统的光盘装置，其在切换区域中不间断地在多个区域中连续地记录数据。 用光盘1的伺服区的再生信号形成相位误差信号。伺服时钟由伺服PLL8产生。数据PLL 9a和9b分频伺服时钟的频率。 由电路11a检测伺服区的激光功率，以执行读取ALPC操作。 记录激光功率由电路11b检测，以执行写入ALPC操作。 DSP 14比较监视值和参考值，并控制驱动信号的偏置值，使得检测值变得等于参考值。 在写入模式下，激光装置响应于数据时钟发射脉冲激光。 由于在针对当前区域执行对下一区域执行写入ALPC操作时，PLL 9a和9b之一为该区域生成数据时钟。 另一个生成下一个区域的数据时钟。 这些数据时钟被选择性地提供给激光装置。