公开(公告)号：US06269069B1

公开(公告)日：2001-07-31

申请号：US09569385

申请日：2000-05-11

Applicant: Takashi Ishida ,  Toyoji Gushima

Inventor： Takashi Ishida ,  Toyoji Gushima

IPC: G11B900

CPC classification number: G11B20/1217 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/24082 ,  G11B20/1252 ,  G11B20/1426 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027 ,  G11B2020/1232 ,  G11B2020/1267 ,  G11B2020/1274 ,  G11B2020/1287 ,  G11B2220/20 ,  G11B2220/216 ,  G11B2220/2537

Abstract: The present invention is aimed at providing an optical disk, an optical disk device, and an optical disk reproduction method, for allowing for stable and efficient reading of address information. The optical disk includes a plurality of tracks each divided into a plurality of recording sectors. Each of the recording sectors includes a header region. The header region includes address information for identifying the position of the corresponding recording sector and address synchronous information for identifying the recording position of the address information for bit synchronization. The address information has been modulated using a run length limit code of a maximum inversion interval of Tmax bits (Tmax is a natural number), and the address synchronous information includes two patterns of which inversion interval is (Tmax+3) bits or more, so that the reproduced signal of the address synchronous information is distinguished from the reproduced signal of other information.

Abstract translation: 本发明旨在提供一种用于允许地址信息的稳定和有效读取的光盘，光盘装置和光盘再现方法。 光盘包括分成多个记录扇区的多个磁迹。 每个记录扇区包括报头区域。 标题区域包括用于识别相应记录扇区的位置的地址信息和用于识别用于位同步的地址信息的记录位置的地址同步信息。 已经使用Tmax比特的最大反转间隔的游程长度限制码（Tmax是自然数）来调制地址信息，并且地址同步信息包括其反转间隔为（Tmax + 3）位或更多的两种模式， 使得地址同步信息的再现信号与其他信息的再现信号不同。

公开(公告)号：US6160770A

公开(公告)日：2000-12-12

申请号：US382449

申请日：1999-08-25

Applicant: Shunji Ohara ,  Takashi Ishida ,  Yoshikazu Goto ,  Isao Satoh

Inventor： Shunji Ohara ,  Takashi Ishida ,  Yoshikazu Goto ,  Isao Satoh

IPC: G11B7/0045 ,  G11B17/22 ,  G11B19/00 ,  G11B19/04 ,  G11B19/10 ,  G11B19/12 ,  G11B20/00 ,  G11B20/10 ,  G11B20/18 ,  G11B23/03 ,  G11B27/00 ,  G11B27/36

CPC classification number: G11B20/0092 ,  G11B17/225 ,  G11B19/00 ,  G11B19/04 ,  G11B19/10 ,  G11B19/12 ,  G11B20/00086 ,  G11B20/00876 ,  G11B20/10 ,  G11B20/1816 ,  G11B23/0317 ,  G11B27/002 ,  G11B27/36 ,  G11B2220/20

Abstract: An information recording method has;a history determination step for determining whether or not a medium being cased and capable of being used for information recording and reproduction has previously been taken out from the case by using an identification section having historical information as to whether the medium has previously been taken out from the case or not; anda verification step for verifying correctness of information recorded always or on condition that a predetermined condition is satisfied when a result of the determination shows that the medium has previously been taken out from the case.

Abstract translation: 信息记录方法有： 历史确定步骤，用于确定是否已经被包装并且能够用于信息记录和再现的介质是否已经从使用具有关于介质是否已经被从 不论情况如何 以及验证步骤，用于当确定结果表示介质已经从壳体中取出时，总是验证满足预定条件的信息的正确性。

公开(公告)号：US6128269A

公开(公告)日：2000-10-03

申请号：US396445

申请日：1999-09-15

Applicant: Takashi Ishida ,  Shinji Kubota ,  Mamoru Shoji ,  Shinji Ishida

Inventor： Takashi Ishida ,  Shinji Kubota ,  Mamoru Shoji ,  Shinji Ishida

IPC: G11B20/12 ,  G11B7/0045 ,  G11B7/006 ,  G11B7/007 ,  G11B11/105 ,  G11B27/19 ,  G11B27/24 ,  G11B27/30 ,  G11B7/00

CPC classification number: G11B20/1251 ,  G11B20/12 ,  G11B20/1217 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027 ,  G11B7/006 ,  G11B7/00745 ,  G11B11/10521 ,  G11B2020/1232 ,  G11B2020/1277 ,  G11B2020/1287 ,  G11B2220/216 ,  G11B2220/2525 ,  G11B2220/2529 ,  G11B2220/2545 ,  G11B2220/2562 ,  G11B7/00454

Abstract: In an optical disc, a sector is sequentially formed with a first gap field, a first guard data recording field, a data recording field composed of synchronous signal and user data, a second guard data recording field, and a second gap field, wherein the length of the first and second gap fields, and the length of the first and second guard data recording fields is changed randomly in every recording, and the changing amount of the first and second guard data recording fields is set smaller than the changing amount of the first and second guard data recording fields, thereby suppressing optical disc medium deterioration in every sector and every mark resulting from repeated recording.

公开(公告)号：US6078559A

公开(公告)日：2000-06-20

申请号：US954929

申请日：1997-10-21

Applicant: Yoshinari Takemura ,  Takashi Ishida ,  Shunji Ohara ,  Isao Satoh

Inventor： Yoshinari Takemura ,  Takashi Ishida ,  Shunji Ohara ,  Isao Satoh

IPC: G11B7/00 ,  G11B7/007 ,  G11B20/12 ,  G11B20/18 ,  G11B27/10 ,  G11B27/19 ,  G11B27/24 ,  G11B27/30 ,  G11B27/32 ,  G11B7/24

CPC classification number: G11B27/3027 ,  G11B11/10597 ,  G11B20/12 ,  G11B20/1217 ,  G11B20/1251 ,  G11B20/1252 ,  G11B20/1262 ,  G11B20/1833 ,  G11B27/105 ,  G11B27/24 ,  G11B27/329 ,  G11B7/007 ,  G11B7/00736 ,  G11B7/00745 ,  G11B20/1258 ,  G11B20/182 ,  G11B20/1883 ,  G11B20/1889 ,  G11B2020/10879 ,  G11B2020/1229 ,  G11B2020/1232 ,  G11B2020/1259 ,  G11B2020/1265 ,  G11B2020/1277 ,  G11B2020/1278 ,  G11B2020/1288 ,  G11B2020/1292 ,  G11B2220/20 ,  G11B2220/211 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2537 ,  G11B2220/2562 ,  G11B2220/2575

Abstract: An optical disk includes a read-only area in which a plurality of read-only tracks are formed and a rewritable area in which a plurality of rewritable tracks are formed, wherein each of the plurality of read-only tracks is divided into a plurality of first sectors, a signal is prerecorded in at least one of the plurality of first sectors under a predetermined reproduction format, each of the plurality of rewritable tracks is divided into a plurality of second sectors, a signal is recordable in at least one of the plurality of second sectors under a predetermined recording format including the predetermined reproduction format, and the read-only area is located on an inner portion of the optical disk, while the rewritable area is located on an outer portion of the optical disk.

Abstract translation: 光盘包括其中形成多个只读磁道的只读区域和形成有多个可重写磁道的可重写区域，其中多个只读磁道中的每一个被划分为多个 第一扇区，在预定的再现格式下，信号被预先记录在多个第一扇区中的至少一个中，多个可重写磁道中的每一个被分成多个第二扇区，信号可以被记录在多个第一扇区中的至少一个中 的第二扇区在包括预定再现格式的预定记录格式下，并且只读区域位于光盘的内部，而可重写区域位于光盘的外部。

公开(公告)号：US6044051A

公开(公告)日：2000-03-28

申请号：US827748

申请日：1997-04-09

Applicant: Naoyasu Miyagawa ,  Mamoru Shoji ,  Takashi Ishida ,  Shigeru Furumiya ,  Yuji Hisakado

Inventor： Naoyasu Miyagawa ,  Mamoru Shoji ,  Takashi Ishida ,  Shigeru Furumiya ,  Yuji Hisakado

IPC: G11B7/007 ,  G11B7/013 ,  G11B20/10 ,  G11B20/12 ,  G11B27/19 ,  G11B27/30 ,  G11B7/00

CPC classification number: G11B27/3027 ,  G11B20/10009 ,  G11B20/1252 ,  G11B27/19 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/013 ,  G11B2220/20

Abstract: There is provided an optical information recording/reproducing device for recording, reproducing, or erasing information on an optical information recording medium including information tracks formed on a disk substrate including alternating groove tracks and land tracks each including: a header region for recording identification data representing location information in pre-pits; and a data region for recording user data, the pre-pits being grouped into blocks, the blocks wobbling alternately toward an inner periphery or an outer periphery of the disk substrate along a radius direction from a center line of each information track by a distance which is substantially 1/2 of the information track pitch. The pre-pits are provided along the radius direction at a pitch twice as large as the track pitch. The device includes: an optical system for radiating a light beam as a converged beam spot on an information track; an optical detector including two light receiving portions divided in parallel to the track direction for receiving the light beam reflected from the recording medium; a signal generator for generating a differential signal and an addition signal of output signals respectively output from the light receiving portions; a header region detection circuit for determining whether the converged beam spot is tracing the header region or the data region using the differential signal; and at least one reading circuit for reading the identification data from the differential signal and for reading information recorded in the data region from the addition signal.

Abstract translation: 提供了一种光学信息记录/再现装置，用于在包括形成在包括交替的凹槽轨道和脊迹道的盘基底上的信息轨迹的光信息记录介质上记录，再现或擦除信息，所述光盘信息记录介质包括：标题区，用于记录表示 预坑中的位置信息; 以及用于记录用户数据的数据区域，将预定凹坑分组成块，块沿着每个信息轨道的中心线沿半径方向交替地向盘基板的内周或外周摆动一距离 基本上为信号轨道间距的+ E，fra 1/2 + EE。 预制坑沿着半径方向以轨道间距的两倍大的间距设置。 该装置包括：用于在信息轨道上辐射作为会聚束斑的光束的光学系统; 光检测器，其包括与轨道方向平行分割的两个光接收部分，用于接收从记录介质反射的光束; 信号发生器，用于产生分别从光接收部分输出的差分信号和输出信号的相加信号; 标题区域检测电路，用于使用所述差分信号来确定所述会聚波束点是跟踪所述头部区域还是所述数据区域; 以及至少一个读取电路，用于从差分信号读取识别数据，并用于从加法信号读取记录在数据区中的信息。

公开(公告)号：US6034932A

公开(公告)日：2000-03-07

申请号：US946576

申请日：1997-10-07

Applicant: Takashi Ishida ,  Shinji Kubota ,  Mamoru Shoji ,  Shinji Ishida

Inventor： Takashi Ishida ,  Shinji Kubota ,  Mamoru Shoji ,  Shinji Ishida

IPC: G11B20/12 ,  G11B7/0045 ,  G11B7/006 ,  G11B7/007 ,  G11B11/105 ,  G11B27/19 ,  G11B27/24 ,  G11B27/30 ,  G11B7/00

CPC classification number: G11B20/1251 ,  G11B20/12 ,  G11B20/1217 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027 ,  G11B7/006 ,  G11B7/00745 ,  G11B11/10521 ,  G11B2020/1232 ,  G11B2020/1277 ,  G11B2020/1287 ,  G11B2220/216 ,  G11B2220/2525 ,  G11B2220/2529 ,  G11B2220/2545 ,  G11B2220/2562 ,  G11B7/00454

Abstract: In an optical disc, a sector is sequentially formed with a first gap field, a first guard data recording field, a data recording field composed of synchronous signal and user data, a second guard data recording field, and a second gap field, wherein the length of the first and second gap fields, and the length of the first and second guard data recording fields is changed randomly in every recording, and the changing amount of the first and second guard data recording fields is set smaller than the changing amount of the first and second guard data recording fields, thereby suppressing optical disc medium deterioration in every sector and every mark resulting from repeated recording.

Abstract translation: 在光盘中，扇区依次形成有第一间隙场，第一保护数据记录区，由同步信号和用户数据组成的数据记录区，第二保护数据记录区和第二间隙场，其中， 第一和第二间隙场的长度以及第一和第二保护数据记录场的长度在每次记录中随机改变，并且将第一和第二保护数据记录场的改变量设置为小于 第一和第二保护数据记录区，从而抑制每个扇区的光盘介质劣化和由重复记录引起的每个标记。

公开(公告)号：US5933410A

公开(公告)日：1999-08-03

申请号：US883443

申请日：1997-06-26

Applicant: Kazuhiko Nakane ,  Hiroyuki Ohata ,  Masato Nagasawa ,  Kenji Gotoh ,  Yoshinobu Ishida ,  Isao Satoh ,  Shunji Ohara ,  Takashi Ishida ,  Yoshinari Takemura

Inventor： Kazuhiko Nakane ,  Hiroyuki Ohata ,  Masato Nagasawa ,  Kenji Gotoh ,  Yoshinobu Ishida ,  Isao Satoh ,  Shunji Ohara ,  Takashi Ishida ,  Yoshinari Takemura

IPC: G11B20/12 ,  G11B7/007 ,  G11B7/09 ,  G11B20/14 ,  G11B27/19 ,  G11B27/24 ,  G11B27/30 ,  G11B7/26

CPC classification number: G11B7/00718 ,  G11B27/19 ,  G11B27/3027 ,  G11B7/00745 ,  G11B7/0901 ,  G11B7/0938 ,  G11B27/24 ,  G11B7/094

Abstract: An optical disc using a single-spiral land and groove track format enabling accurate tracking offset correction and reliable detection of the transition point between a land track and a groove track, and a driving apparatus therefor. Four physical address areas PID1, PID2, PID3, and PID4 are recorded to a header area such that PID1 and PID2 are offset one-half track pitch toward the outside circumference of the disc from the groove track center, and PID3 and PID4 are offset one-half track pitch toward the inside circumference of the disc from the groove track center, and the physical address areas PID1-PID4 can be detected by means of a difference signal in the radial direction. The single frequency pattern area VFO at the beginning of each PID is lengthened by PID1 and PID3, thereby enabling tracking offset correction using a sum signal, and detection of the land-groove transition point using a difference signal obtained from the PID offset.

Abstract translation: 一种使用单螺旋纹脊和凹槽轨道格式的光盘，其能够进行轨迹和凹槽轨道之间的转变点的精确跟踪偏移校正和可靠的检测，以及用于其的驱动装置。 四个物理地址区域PID1，PID2，PID3和PID4被记录到标题区域，使得PID1和PID2从凹槽轨道中心向盘的外圆周偏移二分之一道距，PID3和PID4偏移一个 从凹槽轨道中心朝向盘的内圆周的磁道间距，并且物理地址区域PID1-PID4可以通过径向上的差分信号来检测。 每个PID开始时的单频模式区域VFO由PID1和PID3延长，从而可以使用和信号进行跟踪偏移校正，并使用从PID偏移获得的差分信号来检测纹沟转换点。

公开(公告)号：US5923640A

公开(公告)日：1999-07-13

申请号：US883445

申请日：1997-06-26

Applicant: Yoshinari Takemura ,  Shunji Ohara ,  Takashi Ishida ,  Isao Satoh ,  Kazuhiko Nakane ,  Masato Nagasawa ,  Yoshinobu Ishida

Inventor： Yoshinari Takemura ,  Shunji Ohara ,  Takashi Ishida ,  Isao Satoh ,  Kazuhiko Nakane ,  Masato Nagasawa ,  Yoshinobu Ishida

IPC: G11B7/00 ,  G11B7/004 ,  G11B7/007 ,  G11B7/30 ,  G11B7/24

CPC classification number: G11B7/00745 ,  G11B7/007 ,  G11B7/00718 ,  G11B7/00736 ,  G11B7/0079

Abstract: An optical disc having both rewritable area and read-only area is disclosed. The rewritable area has a single spiral pattern of start track land at a leading edge, and a single spiral pattern of end track land at a trailing edge, whereby portions of the physical address area PID deviated approximately Pa/2 from the track of the rewritable area are being intruded into the start track land and the end track land.

公开(公告)号：US5872767A

公开(公告)日：1999-02-16

申请号：US601263

申请日：1996-02-14

Applicant: Takahiro Nagai ,  Isao Satoh ,  Yuji Takagi ,  Yuji Hisakado ,  Yoshito Aoki ,  Shunji Ohara ,  Takashi Ishida

Inventor： Takahiro Nagai ,  Isao Satoh ,  Yuji Takagi ,  Yuji Hisakado ,  Yoshito Aoki ,  Shunji Ohara ,  Takashi Ishida

IPC: G11B7/005 ,  G11B7/007 ,  G11B7/09 ,  G11B20/10 ,  G11B27/19 ,  G11B27/30 ,  G11B7/00

CPC classification number: G11B20/10009 ,  G11B27/19 ,  G11B27/3027 ,  G11B7/005 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0904 ,  G11B2220/20

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5796949A

公开(公告)日：1998-08-18

申请号：US529568

申请日：1995-09-18

Applicant: Takashi Ishida ,  Yasuhiro Yoshida ,  Hideyuki Oka

Inventor： Takashi Ishida ,  Yasuhiro Yoshida ,  Hideyuki Oka

IPC: H04L29/06 ,  H04N21/231 ,  H04N21/239 ,  H04N21/426 ,  H04N21/643 ,  H04N21/81 ,  G06F15/16 ,  H04N7/14

CPC classification number: H04L65/4084 ,  H04L29/06 ,  H04N21/23109 ,  H04N21/2393 ,  H04N21/42684 ,  H04L29/06027 ,  H04N21/643 ,  H04N21/81

Abstract: A video data sending device comprises a receiving part for receiving sending requests from terminals, a second request section part for determining whether the sending request is for video data, a video data management part for executing sending control of the video data, a video data sending part for returning the video data to the terminal corresponding to the sending request for the video data, a data management part for executing sending control data other than video data and a data sending part for returning the data other than video data to the terminal. A data high-rate returning device comprises a data storing part for storing returning data; a receiving part for receiving a packet having a sending request from each terminal; a header information storing part for storing sending-request-packet header information and returning packet header information; a returning packet preparation part which obtains i) sending-request-packet header information from the packet, ii) returning packet header information from the header information storing part, and iii) returning data from the data storing part, and prepares a returning packet and a sending part for sending the returning packet to the terminal.

Abstract translation: 视频数据发送装置包括用于从终端接收发送请求的接收部分，用于确定发送请求是否用于视频数据的第二请求部分部分，用于执行视频数据发送控制的视频数据管理部分，视频数据发送 用于将视频数据返回到与视频数据的发送请求相对应的终端的部分，用于执行除视频数据之外的发送控制数据的数据管理部分和用于将视频数据以外的数据返回到终端的数据发送部分。 数据高速返回装置包括用于存储返回数据的数据存储部分; 用于从每个终端接收具有发送请求的分组的接收部分; 标题信息存储部分，用于存储发送请求包头信息并返回包标题信息; 从分组获得i）发送请求包头信息的返回分组准备部分，ii）从头信息存储部分返回分组报头信息，以及iii）从数据存储部分返回数据，并准备返回分组， 发送部分，用于将返回的分组发送到终端。