公开(公告)号：US20080025181A1

公开(公告)日：2008-01-31

申请号：US11880580

申请日：2007-07-23

申请人： Tsutomu Aoyama ,  Tatsuya Kato

发明人： Tsutomu Aoyama ,  Tatsuya Kato

IPC分类号： G11B5/09

CPC分类号： G11B7/00456

摘要： A recording method suitable for high-density recording is provided. When information is recorded on an optical recording medium with irradiation of a write pulse of a laser beam, a length corresponding to 7 T is set to be equal to or less than the spot diameter λ/NA of the laser beam where T is one recording clock cycle, λ is a wavelength of the laser beam, and NA is a numerical aperture of the objective lens, and a specified mark with a length corresponding to 3 T or more is recorded by a single write pulse.

摘要翻译： 提供适用于高密度记录的记录方法。 当通过激光的写入脉冲的照射将信息记录在光学记录介质上时，对应于7T的长度被设定为等于或小于其中T是一个记录的激光束的光斑直径λ/ NA 时钟周期，λ是激光束的波长，NA是物镜的数值孔径，并且通过单个写入脉冲记录长度对应于3T以上的指定标记。

公开(公告)号：US07298682B2

公开(公告)日：2007-11-20

申请号：US10504441

申请日：2003-02-14

申请人： Hideaki Miura ,  Tatsuya Kato ,  Tetsuro Mizushima

发明人： Hideaki Miura ,  Tatsuya Kato ,  Tetsuro Mizushima

IPC分类号： G11B7/00

CPC分类号： G11B7/0062 ,  G11B7/006 ,  G11B7/00718 ,  G11B2007/0013

摘要： It is an object of the present invention to provide an information recording method for recording information in a data rewritable type optical recording medium having a plurality of information recording layers, which can form recording marks having good shapes. In the information recording method according to the present invention, information is recorded in an optical recording medium 10 having at least a stacked L0 layer 20 and L1 layer 30 by projecting a laser beam whose power is modulated thereonto via a light incidence plane 13a. When information is recorded, λ/NA is set to be equal to or shorter than 700 nm, where λ is the wavelength of the laser beam and NA is the numerical aperture of an objective lens for converging the laser beam, and a pulse width Ttop0 of a top pulse of the laser beam when information is to be recorded in the L0 layer 20 is set to be shorter than a pulse width Ttop1 of a top pulse of the laser beam when information is to be recorded in the L1 layer 30.

摘要翻译： 本发明的目的是提供一种用于在具有多个信息记录层的数据可重写型光学记录介质中记录信息的信息记录方法，其可以形成具有良好形状的记录标记。 在根据本发明的信息记录方法中，信息被记录在具有至少层叠的L 0层20和L 1层30的光学记录介质10中，通过投射其功率被调制在其上的激光束经由光入射面13 一个。 当记录信息时，λ/ NA设定为等于或小于700nm，其中λ是激光束的波长，NA是用于会聚激光束的物镜的数值孔径，脉冲宽度T 当信息要被记录在L 0层20中时，激光束的顶部脉冲的顶部top0 被设置为短于顶部脉冲的脉冲宽度T top1 < 当信息要记录在L 1层30中时，激光束的位置。

公开(公告)号：US07227832B2

公开(公告)日：2007-06-05

申请号：US10502000

申请日：2003-01-29

申请人： Hiroshi Shingai ,  Tatsuya Kato ,  Hajime Utsunomiya

发明人： Hiroshi Shingai ,  Tatsuya Kato ,  Hajime Utsunomiya

IPC分类号： G11B7/24

CPC分类号： G11B7/24035 ,  G11B7/252 ,  G11B7/259 ,  G11B2007/24306 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25708 ,  G11B2007/25715

摘要： It is an object of the present invention to provide an optical recording medium that is suitable for recording information therein at a high velocity. An optical recording medium according to the present invention includes a recording layer formed of a phase change material and capable of recording data therein at a linear recording velocity equal to or higher than 10 m/sec, wherein Rtop satisfies the condition that it is larger than {11−(V/5)} and smaller than {22−(2V/5)}, where Rtop (%) is a reflectivity of the crystal phase change material forming the recording layer and V (m/sec) is a target linear recording velocity. According to the present invention, since modulation (MOD) of 50% or more can be ensured, it is possible to effectively suppress the degradation of jitter caused by recording data at a high linear recording velocity equal to or higher than 10 m/sec.

摘要翻译： 本发明的目的是提供一种适合于以高速记录信息的光记录介质。 根据本发明的光记录介质包括由相变材料形成并能够以等于或高于10m / sec的线性记录速度记录数据的记录层，其中Rtop满足大于 {11-（V / 5且小于{22-（2V / 5，其中Rtop（％）是形成记录层的晶体相变材料的反射率，V（m / sec））是目标线性记录速度。 根据本发明，由于可以确保50％以上的调制（MOD）（MOD），所以可以有效地抑制由高于10m /秒的高线性记录速度的记录数据引起的抖动的劣化。

公开(公告)号：US07164551B2

公开(公告)日：2007-01-16

申请号：US10474161

申请日：2003-02-27

申请人： Masahiro Urano ,  Yoshihisa Takayama ,  Hiroshi Ishibashi ,  Tatsuya Kato

发明人： Masahiro Urano ,  Yoshihisa Takayama ,  Hiroshi Ishibashi ,  Tatsuya Kato

IPC分类号： G11B5/584

CPC分类号： G11B27/11 ,  G11B15/07 ,  G11B23/08714 ,  G11B27/107 ,  G11B27/328 ,  G11B2220/655 ,  G11B2220/90

摘要： A tape drive apparatus employing a tape cassette including a solid-state memory in a cassette half unit that accommodates a magnetic tape. When recording application data on the magnetic tape, the application data is written in an area of a preset size of the memory, beginning from a leading end of the application data. In this manner, it is assured that the management information located at the leading end of the application data can be stored in the memory. In reproducing the application data from the tape cassette, the management information stored in the memory is exploited to save time in accessing the management information recorded on the magnetic tape.

摘要翻译： 一种磁带驱动装置，其采用包含固态存储器的盒式磁带，该磁带盒容纳磁带。 当将应用数据记录在磁带上时，应用数据从应用数据的前端开始写入存储器的预定大小的区域中。 以这种方式，确保位于应用数据的前端的管理信息可以存储在存储器中。 在再现来自磁带盒的应用数据时，利用存储在存储器中的管理信息来节省访问记录在磁带上的管理信息的时间。

公开(公告)号：US20060116173A1

公开(公告)日：2006-06-01

申请号：US11331171

申请日：2006-01-13

申请人： Satoru Morota ,  Yasutaka Urakawa ,  Tatsuya Kato ,  Kenji Ishii ,  Masanori Fujita

发明人： Satoru Morota ,  Yasutaka Urakawa ,  Tatsuya Kato ,  Kenji Ishii ,  Masanori Fujita

IPC分类号： H04B1/38

CPC分类号： H04M3/38 ,  H04M1/57 ,  H04M1/677 ,  H04M3/42059 ,  H04M3/42068 ,  H04M3/436 ,  H04M15/00 ,  H04M15/47 ,  H04M15/51 ,  H04M2215/0148 ,  H04M2215/32 ,  H04M2215/54

摘要： A mobile unit 10 is provided with a called party number acquiring unit 102 for acquiring a called party number corresponding to a call origination command entered by a user, a number checking unit 103 for checking the called party number acquired by the called party number acquiring unit 102, against every origination-restricted number stored in an origination-restricted number storing unit 112, and an origination restricting unit 104 for restricting origination of a call on the basis of the result of the checking by the number checking unit 103.

摘要翻译： 移动单元10设置有被叫方号码获取单元102，用于获取与用户输入的呼叫发起命令相对应的被叫方号码，用于检查被叫方号码获取单元获取的被叫方号码的号码检查单元103 102，针对存储在起始限制号码存储单元112中的每个起始限制号码，以及起始限制单元104，用于根据号码检查单元103的检查结果来限制发起呼叫。

公开(公告)号：US20060072409A1

公开(公告)日：2006-04-06

申请号：US10519282

申请日：2003-06-27

申请人： Tatsuya Kato ,  Tatsuhiro Kobayashi ,  Hiroyasu Inoue

发明人： Tatsuya Kato ,  Tatsuhiro Kobayashi ,  Hiroyasu Inoue

IPC分类号： G11B7/00

CPC分类号： G11B7/1267 ,  G11B7/0045

摘要： It is an object of the present invention to provide a method for determining the power of a laser beam which can determine the recording power of the laser beam so that jitter of a reproduced signal obtained by reproducing data recorded in a data rewritable type optical recording medium can be controlled within a tolerance even when cross erasing of data occurs and that the reproduced signal having the highest level can be obtained. The method for determining the power of a laser beam according to the present invention includes the steps of recording a first test signal in a data rewritable type optical recording medium while varying a level of the recording power of the laser beam, measuring, for each of the levels of the recording power of the laser beam, an amplitude A0 of a reproduced signal obtained by reproducing the first test signal before the first test signal is influenced by cross erasing of data, an amplitude A1 and jitter J1 of a reproduced signal obtained by reproducing the first test signal after the first test signal was once influenced by cross erasing of data and an amplitude As and jitter Js of a reproduced signal obtained by reproducing the first test signal after an influence of cross erasing of data on the first test signal was saturated, calculating a first parameter for each of the levels of the recording power of the laser beam as a function of the difference between the amplitude A0 of the reproduced signal obtained by reproducing the first test signal before the first test signal is influenced by cross erasing of data and the amplitude A1 of the reproduced signal obtained by reproducing the first test signal after the first test signal was once influenced by cross erasing of data, calculating a second parameter for each of the levels of the recording power of the laser beam as a function of the difference between the amplitude A1 of the reproduced signal obtained by reproducing the first test signal after the first test signal was once influenced by cross erasing of data and the amplitude As of the reproduced signal obtained by reproducing the first test signal after the influence of cross erasing of data on the first test signal was saturated, calculating a third parameter for each of the levels of the recording power of the laser beam as a function of the difference between the jitter Js of the reproduced signal obtained by reproducing the first test signal after the influence of cross erasing of data on the first test signal was saturated and the jitter J1 of the reproduced signal obtained by reproducing the first test signal after the first test signal was once influenced by cross erasing of data, obtaining a value of the first parameter corresponding to a value of the second parameter when the third parameter is equal to a tolerance, thereby determining a critical parameter, recording a second test signal in the data rewritable type optical recording medium while varying a level of the recording power of the laser beam, judging whether or not signal characteristics of a reproduced signal obtained by reproducing the second test signal recorded in the data rewritable type optical recording medium satisfy reference conditions, measuring, for each of the levels of the recording power of the laser beam, when the signal characteristics of the reproduced signal obtained by reproducing the second test signal recorded in the data rewritable type optical recording medium satisfy the reference conditions, an amplitude AA0 of the reproduced signal obtained by reproducing the second test signal before the second test signal is influenced by cross erasing of data and an amplitude AA1 of the reproduced signal obtained by reproducing the second test signal after the first test signal was once influenced by cross erasing of data, calculating a fourth parameter based on the amplitudes AA0 and AA1 of the reproduced signals obtained by reproducing the second test signals as a function of the difference between the amplitude AA0 of the reproduced signal obtained by reproducing the second test signal before the second test signal is influenced by cross erasing of data and the amplitude AA1 of the reproduced signal obtained by reproducing the second test signal after the first test signal was once influenced by cross erasing of data, comparing the critical parameter and the fourth parameter, and determining the recording power of the laser beam at which the fourth parameter was obtained as an optimum recording power when the fourth parameter is equal to or lower than the critical parameter.

公开(公告)号：US07016137B2

公开(公告)日：2006-03-21

申请号：US10748155

申请日：2003-12-31

申请人： Tatsuya Kato ,  Masaki Yoshida ,  Katsumi Ikeda ,  Yoshihisa Takayama

发明人： Tatsuya Kato ,  Masaki Yoshida ,  Katsumi Ikeda ,  Yoshihisa Takayama

IPC分类号： G11B19/02 ,  G11B23/02

CPC分类号： G11B20/10 ,  G11B20/1201 ,  G11B27/107 ,  G11B27/11 ,  G11B27/328 ,  G11B2220/655 ,  G11B2220/90

摘要： A tape cassette of this invention is equipped with a memory capable of accommodating management information. The memory retains an MIC logical format type designating a format state, either formatted or unformatted, of the magnetic tape. A check is made on the consistency between the format state designated by the MIC logical format type and the format state estimated by reading data from the magnetic tape. If an inconsistency is detected, that is interpreted to mean that the tape cassette has been tampered with, and read and write operations on the cassette are controlled accordingly. This enhances security against fraudulent uses of a tape drive system loaded with the tape cassette.

摘要翻译： 本发明的磁带盒配备有能够容纳管理信息的存储器。 存储器保留指定磁带格式化或未格式化的格式状态的MIC逻辑格式类型。 检查由MIC逻辑格式类型指定的格式状态与通过从磁带读取数据估计的格式状态之间的一致性。 如果检测到不一致，则这被解释为意味着盒式磁带已被篡改，并且相应地控制盒上的读取和写入操作。 这增强了对装载带盒的磁带驱动器系统的欺骗性使用的安全性。

公开(公告)号：US20050219984A1

公开(公告)日：2005-10-06

申请号：US10516424

申请日：2003-06-02

申请人： Tatsuya Kato ,  Hideki Hirata

发明人： Tatsuya Kato ,  Hideki Hirata

IPC分类号： G11B7/0045 ,  G11B7/125 ,  G11B7/24038 ,  G11B7/243 ,  G11B5/09

CPC分类号： G11B7/0045 ,  G11B7/00456 ,  G11B7/1267 ,  G11B7/24 ,  G11B7/24038

摘要： It is an object of the present invention to provide a method for recording data in an optical recording medium which can record data in a write-once type optical recording medium at a high linear recording velocity using a laser beam having a low recording power. The method for recording data in an optical recording medium according to the present invention is constituted so that when data are to be recorded in an optical recording medium including a substrate, a first recording layer and a second recording layer by projecting a laser beam whose power is modulated in accordance with a pulse train pattern including pulses whose levels are set to levels corresponding to a recording power Pw and a bottom power Pb onto the optical recording medium and forming a recording mark at a predetermined region of the first recording layer and the second recording layer, as a linear recording velocity increases, the power of the laser beam is modulated using a pulse train pattern including a smaller number of pulses whose level is set to a level to the recording power Pw, thereby forming a recording mark. According to the present invention, since the power of a laser beam is modulated using a pulse train pattern including a smaller number of pulses whose level is set to a level to the recording power Pw as a linear recording velocity increases, it is possible to record data in an optical recording medium using a laser beam having a low recording power even when a linear recording velocity is high and on the other hand, it is possible to prevent cross-talk of data from increasing even when a linear recording velocity is low. Therefore, it is possible to employ a semiconductor laser having a relatively low output even when data are recorded at a high linear recording velocity.

摘要翻译： 本发明的目的是提供一种在光记录介质中记录数据的方法，该方法可以使用具有低记录功率的激光束以高线性记录速度在一次写入型光记录介质中记录数据。 根据本发明的用于在光学记录介质中记录数据的方法被构造成使得当数据要被记录在包括基板，第一记录层和第二记录层的光学记录介质中时，通过投射激光 根据脉冲序列模式进行调制，脉冲串模式包括其电平被设置为对应于光学记录介质上的记录功率Pw和底部功率Pb的电平，并在第一记录层的预定区域形成记录标记， 记录层，随着线性记录速度的增加，激光束的功率使用脉冲序列模式进行调制，该脉冲串模式包括较小数量的脉冲，其电平被设置为与记录功率Pw的水平，从而形成记录标记。 根据本发明，由于线性记录速度增加​​，使用脉冲序列调制激光束的功率，该脉冲串模式包括其电平被设置为与记录功率Pw相关的水平的较小数量的脉冲，因此可以记录 即使线性记录速度高，也使用具有低记录功率的激光束的光记录介质中的数据，另一方面，即使线性记录速度低，也可以防止数据串扰增加。 因此，即使当以高线性记录速度记录数据时，也可以采用具有相对较低输出的半导体激光器。

公开(公告)号：US06605328B2

公开(公告)日：2003-08-12

申请号：US09886258

申请日：2001-06-22

申请人： Hiroshi Shingai ,  Hiroyasu Inoue ,  Tatsuya Kato ,  Hajime Utsunomiya ,  Yoshitomo Tanaka

发明人： Hiroshi Shingai ,  Hiroyasu Inoue ,  Tatsuya Kato ,  Hajime Utsunomiya ,  Yoshitomo Tanaka

IPC分类号： B32B302

CPC分类号： G11B7/2433 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/256 ,  G11B7/2578 ,  G11B7/259 ,  G11B2007/24306 ,  G11B2007/2431 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B2007/25715 ,  G11B2007/25716 ,  Y10T428/21

摘要： In an optical recording medium comprising a phase change recording layer (4) containing Sb and optionally, Te and/or In as a main component, the recording layer is able to be crystallized to provide a crystallized region which contains rhombohedral crystals consisting essentially of Sb and is substantially free of a crystal phase other than the rhombohedral crystals. When the recording layer contains a rare earth element, Zr, Hf, Ti or Sn as an auxiliary component, the medium has a dielectric layer (31) composed of silicon oxide, silicon nitride, aluminum oxide, or a mixture of zinc sulfide and at least 30 mol % of silicon oxide, disposed contiguous to and in front of the recording layer (4) as viewed from the recording/reading beam incident side. The medium has a high transfer rate and improved thermal stability.

公开(公告)号：US06501612B1

公开(公告)日：2002-12-31

申请号：US09407197

申请日：1999-09-28

申请人： Tatsuya Kato ,  Katsumi Ikeda ,  Yoshihisa Takayama

发明人： Tatsuya Kato ,  Katsumi Ikeda ,  Yoshihisa Takayama

IPC分类号： G11B1518

CPC分类号： G11B23/042 ,  G11B15/07 ,  G11B23/08714 ,  G11B27/107 ,  G11B27/11 ,  G11B27/328 ,  G11B2220/655 ,  G11B2220/90

摘要： A tape drive device including a tape driver for information recording or reproduction is performed on a magnetic tape when a tape cassette having the magnetic tape accommodated therein is loaded, a memory driver through which when a memory for recording management information to manage the recording or reproduction to the magnetic tape is provided to the tape cassette, read-out or writing of the management information from/into the memory can be performed, a detector for detecting storage capacity information of the memory which is stored in the memory, and an identifier for identifying the storage capacity of the memory on the basis of the storage capacity information.

摘要翻译： 当装载有磁带的带盒被装入时，包括用于信息记录或再现的磁带驱动器的磁带驱动装置被执行在磁带上;存储器驱动器，当用于记录用于管理记录或再现的管理信息的存储器时 提供给磁带的磁带可以执行管理信息从存储器的读取或写入，用于检测存储在存储器中的存储器的存储容量信息的检测器和用于存储在存储器中的存储器的标识符 基于存储容量信息来识别存储器的存储容量。