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1. 发明授权

US5517484A Optical disk and optical disk recording and reproducing apparatus 失效
标题翻译：光盘和光盘记录和再现装置
公开(公告)号：US5517484A
公开(公告)日：1996-05-14
申请号：US193502
申请日：1994-02-08
申请人： Yuji Takagi , Isao Satoh , Motoshi Ito , Yuji Hisakado
发明人： Yuji Takagi , Isao Satoh , Motoshi Ito , Yuji Hisakado
IPC分类号： G11B7/007 , G11B20/12 , G11B20/18
CPC分类号： G11B20/1833
摘要： A reproduction type optical disk having same sector structure as that of a recordable optical disk, can reproduce data even if a plurality of sectors are disabled from correction. The disk has data sectors for recording data, parity sectors obtained by a new error correction coding between a plurality of data sectors, wherein the error correction coding between the data sectors is performed by arranging a plurality of data sectors into a matrix and by coding them in directions of row and column doubly to make a product code.
摘要翻译：具有与可记录光盘相同的扇区结构的再现型光盘即使禁止多个扇区进行校正，也可以再现数据。磁盘具有用于记录数据的数据扇区，通过多个数据扇区之间的新的纠错编码获得的奇偶校验扇区，其中数据扇区之间的纠错编码通过将多个数据扇区排列成矩阵并通过对它们进行编码来执行在行和列的方向上双重制作产品代码。

2. 发明授权

US5406534A Double-sided recordable optical disk suitable for a substituting process and a method for performing defect management 失效
标题翻译：适用于替代处理的双面可记录光盘和执行缺陷管理的方法
公开(公告)号：US5406534A
公开(公告)日：1995-04-11
申请号：US191369
申请日：1994-02-03
申请人： Yuji Hisakado , Isao Satoh , Yuji Takagi , Motoshi Ito
发明人： Yuji Hisakado , Isao Satoh , Yuji Takagi , Motoshi Ito
IPC分类号： G11B7/0045 , G11B20/18 , G11B17/22 , G11B7/00
CPC分类号： G11B20/1883 , G11B7/0045 , G11B2220/20
摘要： An optical disk apparatus for an optical disk having two sides for which data can be simultaneously recorded. Each of the two sides includes a spare area for alternative recording. In the optical disk apparatus, a series of data to be recorded is distributed into first data for the first one of the two sides and second data for the second one of the two sides. The apparatus of this invention detects any defective sector into which data cannot be recorded which occurs in either one or both sides during the simultaneous recording. If there is a defective sector in one side, an alternative recording process is performed for alternatively recording data that was to be recorded into the detected defective sector, and data to be recorded into a sector in the other side corresponding to the defective sector, into alternative sectors in the spare areas of the two sides, respectively. Also, defect information relating to the defective sector is recorded into a predetermined area of the optical disk. When the first data and the second data are reproduced, the first and second data are integrated and rearranged, so as to reproduce the series of data.
摘要翻译：一种用于光盘的光盘装置，具有可以同时记录数据的两侧。双方各有一个备用地区供备用录音。在光盘装置中，要记录的一系列数据被分配到两侧的第一个的第一数据和两侧的第二个的第二数据中。本发明的装置在同时记录期间检测出在一侧或两侧不能记录数据的缺陷扇区。如果在一侧存在缺陷扇区，则执行备选记录处理，以备选记录要被记录到检测到的缺陷扇区中的数据，以及要记录到与缺陷扇区相对应的另一侧的扇区中的数据，分别在双方备用地区的替代行业。此外，与缺陷扇区相关的缺陷信息被记录在光盘的预定区域中。当第一数据和第二数据被再现时，第一和第二数据被整合和重新排列，以再现一系列数据。

3. 发明授权

US5862112A Optical disk and an optical disk recording reproduction device 失效
标题翻译：光盘和光盘记录再现装置
公开(公告)号：US5862112A
公开(公告)日：1999-01-19
申请号：US94339
申请日：1998-06-09
申请人： Takahiro Nagai , Isao Satoh , Yuji Takagi , Yuji Hisakado , Yoshito Aoki , Shunji Ohara , Takashi Ishida
发明人： Takahiro Nagai , Isao Satoh , Yuji Takagi , Yuji Hisakado , Yoshito Aoki , Shunji Ohara , Takashi Ishida
IPC分类号： G11B7/005 , G11B7/007 , G11B7/09 , G11B20/10 , G11B27/19 , G11B27/30 , G11B7/00
CPC分类号： G11B20/10009 , G11B27/19 , G11B27/3027 , G11B7/005 , G11B7/00718 , G11B7/00745 , G11B7/0904 , G11B2220/20
摘要： An optical disk according to the present invention includes a first track having a spiral shape and a second track having a spiral shape, the first track and the second track adjoining each other, and information being recorded on or reproduced from the first track and the second track. The optical disk further includes an address region including: a first address block formed so as to be on both the first track and the second track adjoining the first track on an inner periphery side; and a second address block formed so as to be on both the first track and the second track adjoining the first track on an outer periphery side.
摘要翻译：根据本发明的光盘包括具有螺旋形状的第一轨道和具有螺旋形状的第二轨道，第一轨道和第二轨道彼此相邻，并且信息被记录在第一轨道上，或者从第一轨道和第二轨迹再现跟踪。光盘还包括地址区，包括：第一地址块，形成为在内周侧上与第一轨道相邻的第一轨道和第二轨道; 以及形成为在外周侧上与第一轨道相邻的第一轨道和第二轨道上形成的第二地址块。

4. 发明授权

US5872767A Optical disk and an optical disk recording/reproduction device having address blocks located on boundary lines between adjoining tracks 失效
标题翻译：光盘和具有位于相邻轨道之间的边界线上的地址块的光盘记录/再现设备
公开(公告)号：US5872767A
公开(公告)日：1999-02-16
申请号：US601263
申请日：1996-02-14
申请人： Takahiro Nagai , Isao Satoh , Yuji Takagi , Yuji Hisakado , Yoshito Aoki , Shunji Ohara , Takashi Ishida
发明人： Takahiro Nagai , Isao Satoh , Yuji Takagi , Yuji Hisakado , Yoshito Aoki , Shunji Ohara , Takashi Ishida
IPC分类号： G11B7/005 , G11B7/007 , G11B7/09 , G11B20/10 , G11B27/19 , G11B27/30 , G11B7/00
CPC分类号： G11B20/10009 , G11B27/19 , G11B27/3027 , G11B7/005 , G11B7/00718 , G11B7/00745 , G11B7/0904 , G11B2220/20
摘要： An optical disk according to the present invention includes a first track having a spiral shape and a second track having a spiral shape, the first track and the second track adjoining each other, and information being recorded on or reproduced from the first track and the second track. The optical disk further includes an address region including: a first address block formed so as to be on both the first track and the second track adjoining the first track on an inner periphery side; and a second address block formed so as to be on both the first track and the second track adjoining the first track on an outer periphery side.
摘要翻译：根据本发明的光盘包括具有螺旋形状的第一轨道和具有螺旋形状的第二轨道，第一轨道和第二轨道彼此相邻，并且信息被记录在第一轨道上，或者从第一轨道和第二轨迹再现跟踪。光盘还包括地址区，包括：第一地址块，形成为在内周侧上与第一轨道相邻的第一轨道和第二轨道; 以及形成为在外周侧上与第一轨道相邻的第一轨道和第二轨道上形成的第二地址块。

5. 发明授权

US5469418A Optical information write/read device and method for writing data 失效
标题翻译：光信息写/读设备和数据写入方法
公开(公告)号：US5469418A
公开(公告)日：1995-11-21
申请号：US091276
申请日：1993-07-15
申请人： Isao Satoh , Yuji Takagi , Yuji Hisakado
发明人： Isao Satoh , Yuji Takagi , Yuji Hisakado
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/14 , G11B20/18
CPC分类号： G11B7/14 , G11B7/0045
摘要： A write/read device includes two optical heads for writing data on an optical disk. The two heads are moved simultaneously after data is written in a track, the written data is read and checked for writing errors. This write verify is performed by the two optical heads in parallel, and data can be written on an optical disk at a fast rate.
摘要翻译：写/读设备包括用于在光盘上写入数据的两个光头。将数据写入轨道后，两个磁头同时移动，读取写入的数据并检查写入错误。该写入验证由并行的两个光头执行，并且可以以快速的速率将数据写入光盘。

6. 发明授权

US5457794A Information retrieval apparatus for searching target literature data from an information recording medium, including reuse of past retrieving results 失效
标题翻译：信息检索装置，用于从信息记录介质搜索目标文献数据，包括重用过去的检索结果
公开(公告)号：US5457794A
公开(公告)日：1995-10-10
申请号：US49734
申请日：1993-04-19
申请人： Yasushi Azumatani , Isao Satoh , Yoshihisa Fukushima , Yuji Takagi , Hiroshi Hamasaka , Yuji Hisakado
发明人： Yasushi Azumatani , Isao Satoh , Yoshihisa Fukushima , Yuji Takagi , Hiroshi Hamasaka , Yuji Hisakado
IPC分类号： G06F17/30
CPC分类号： G06F17/30985 , G06F17/30457 , Y10S707/99932 , Y10S707/99933
摘要： The present invention relates to an information retrieval apparatus for retrieving large quantities of the document files stored in the information recording medium by the successive matched comparison between the character string of a target and the character string in the coded document. When the retrieving result of the document file retrieved in the past is stored within the information recording medium together with the retrieving conditions and the document file is retrieved again with the same retrieving conditions, the information retrieval apparatus of the present invention makes it unnecessary to retrieve the document file itself by the reuse of the past retrieving results if the latest retrieved date and time are newer than the recording date and time of the document file so as to shorten the retrieving time.
摘要翻译：信息检索装置技术领域本发明涉及一种信息检索装置，用于通过目标字符串与编码文档中的字符串之间的连续匹配比较来检索存储在信息记录介质中的大量文档文件。当将过去检索到的文档文件的检索结果与检索条件一起存储在信息记录介质中并且以相同的检索条件再次检索文档文件时，本发明的信息检索装置使得不必检索如果最新检索的日期和时间比文档文件的记录日期和时间更新，则通过重新使用过去的检索结果来缩短文档文件本身，以缩短检索时间。

7. 发明授权

US06434098B1 Optical disc device 有权
公开(公告)号：US06434098B1
公开(公告)日：2002-08-13
申请号：US09840874
申请日：2001-04-25
申请人： Shinichi Konishi , Takeshi Nakajima , Harumitsu Miyashita , Toshihiko Takahashi , Toshiya Akagi , Yuji Hisakado , Yukihiro Yamasaki
发明人： Shinichi Konishi , Takeshi Nakajima , Harumitsu Miyashita , Toshihiko Takahashi , Toshiya Akagi , Yuji Hisakado , Yukihiro Yamasaki
IPC分类号： G11B700
摘要： An optical disc drive usable with discs to which data is continuously recorded and discs having a sector format can quickly resume playback signal output after passing imperfection causing potential reading errors, and plays disc with few read errors. A detection signal generator detects DC level fluctuation in the playback signal read from the disc and generates a detection signal tracking the DC level fluctuation. A selector selects a detection signal or a null signal without valid polarity based on the detection signal generated by the detection signal generator and input to the selector. A clamping unit performs a clamping process to suppress DC level fluctuation in the playback signal based on the detection signal when the selection unit selects the detection signal, and does not perform the clamping process when the selection unit selects the null signal. A signal processor performs specific signal processes based on clamping unit output.

8. 再颁专利

USRE39952E1 Laser power controller and optical disk device 失效
标题翻译：激光功率控制器和光盘设备
公开(公告)号：USRE39952E1
公开(公告)日：2007-12-25
申请号：US11223909
申请日：1999-08-20
申请人： Chikashi Inokuchi , Shigeru Furumiya , Yoshiyuki Miyabata , Yuji Hisakado , Atsushi Miyazaki , Toshiya Akagi
发明人： Chikashi Inokuchi , Shigeru Furumiya , Yoshiyuki Miyabata , Yuji Hisakado , Atsushi Miyazaki , Toshiya Akagi
IPC分类号： G11B7/00
CPC分类号： G11B7/126 , G11B7/0045 , G11B7/0053 , G11B7/0055 , G11B7/0062 , G11B7/00718 , G11B7/1263
摘要： A power control device for controlling a power of a light source of an optical beam directed to an optical medium. The power control device includes a reflected light detector for detecting reflected light from the optical medium when irradiated by an optical beam which is following a track; an arithmetic unit for calculating from the reflected light a transmissivity of light transmitted from a disk surface to a recording layer or an amount of directed light on the recording layer of the medium; and power control means for controlling the power of the light source for emission based on a calculation result produced by the arithmetic unit.
摘要翻译：一种用于控制指向光学介质的光束的光源的功率的功率控制装置。功率控制装置包括反射光检测器，用于当由跟随轨道的光束照射时检测来自光学介质的反射光; 用于从反射光计算从盘表面传输到记录层的光的透射率或介质的记录层上的定向光量的运算单元; 以及功率控制装置，用于基于由运算单元产生的计算结果来控制用于发射的光源的功率。

9. 发明授权

US07123574B2 Recording medium, method and apparatus for recording, and method and apparatus for reproducing 有权
标题翻译：用于记录的记录介质，方法和装置，以及用于再现的方法和装置
公开(公告)号：US07123574B2
公开(公告)日：2006-10-17
申请号：US11242771
申请日：2005-10-04
申请人： Mamoru Shoji , Atsushi Nakamura , Takashi Ishida , Yuji Hisakado
发明人： Mamoru Shoji , Atsushi Nakamura , Takashi Ishida , Yuji Hisakado
IPC分类号： G11B7/24 , G11B5/09
CPC分类号： G11B19/125 , G11B7/0045 , G11B7/005 , G11B7/007 , G11B7/00718 , G11B19/128 , G11B2007/0013
摘要： In a recording medium which is circular and has first and second recording layers, the first and second recording layers each include one or more first tracks extending concentrically or spirally and one or more second tracks extending concentrically or spirally, each of the one or more first tracks and the one or more second tracks includes a plurality of first sectors and a plurality of second sectors, each of the plurality of first sectors includes first and second regions, each of the plurality of second sectors includes third and fourth regions, first and second grooves are formed in each of the second and fourth regions, the first and second grooves extending concentrically or spirally and oscillating sinusoidally, oscillation of the first groove has a first oscillation characteristic at a first prescribed position in the second region, oscillation of the second groove has a second oscillation characteristic at a second prescribed position in the fourth region, and the first and second oscillation characteristics are different from each other.
摘要翻译：在圆形并具有第一和第二记录层的记录介质中，第一和第二记录层各自包括同心或螺旋状延伸的一个或多个第一轨道和同心或螺旋地延伸的一个或多个第二轨道，一个或多个第一记录层轨道，并且一个或多个第二轨道包括多个第一扇区和多个第二扇区，多个第一扇区中的每一个包括第一和第二区域，多个第二扇区中的每一个包括第三和第四区域，第一和第二区域在第二和第四区域的每一个中形成有槽，第一和第二槽同心或螺旋地延伸并正弦振荡，第一槽的振荡在第二区域的第一规定位置处具有第一振荡特性，第二槽的振荡在第四区域的第二规定位置具有第二振荡特性，第二振荡特性彼此不同。

10. 发明授权

US06195320B1 Optical disk signal processing method and optical disk device 有权
标题翻译：光盘信号处理方法和光盘装置
公开(公告)号：US06195320B1
公开(公告)日：2001-02-27
申请号：US09210808
申请日：1998-12-15
申请人： Shigeru Furumiya , Yuji Hisakado
发明人： Shigeru Furumiya , Yuji Hisakado
IPC分类号： G11B700
CPC分类号： G11B7/00718 , G11B7/0037 , G11B7/005 , G11B20/10
摘要： A method and a device of processing a signal to solve the problem that a multi-bit and high-speed A/D converter for converting an analog regenerated signal into a digital signal on an optical disk is costly. In the method of processing a signal using a sum signal (22) or a difference signal (7) of a plurality of electric signals detected by an optical detection unit (4), an ID signal and a recording signal contained in the sum signal or the difference signal are selected and time-multiplexed, the polarity of the ID signal is adjusted to the polarity of the recording signal, the DC levels of the polarity-adjusted ID signal and recording signal are controlled and maintained at a constant level, and a series of the polarity- and DC-level-adjusted signals are A/D converted. Thus, the dynamic range of the multiplexed signal is reduced, and both the sum and the difference signals are digitized by a single A/D converter having the minimum number of bits.
摘要翻译：一种处理信号以解决用于将模拟再生信号转换成光盘上的数字信号的多位和高速A / D转换器的方法和装置是昂贵的。在使用由光检测单元（4）检测的多个电信号的和信号（22）或差分信号（7）处理信号的方法中，包含在和信号中的ID信号和记录信号，差分信号被选择并且被时分多路复用，ID信号的极性被调整到记录信号的极性，极性调整的ID信号和记录信号的DC电平被控制并保持在恒定水平，并且极性和直流电平调节信号的一系列被A / D转换。因此，复用信号的动态范围减小，并且通过具有最小位数的单个A / D转换器将和信号和差分信号二者化。

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