公开(公告)号：US5852593A

公开(公告)日：1998-12-22

申请号：US890799

申请日：1997-07-11

申请人： Masayuki Ishida ,  Kazuhito Endo ,  Manabu Tsukamoto ,  Nobuaki Hirai ,  Yoshinobu Ishida

发明人： Masayuki Ishida ,  Kazuhito Endo ,  Manabu Tsukamoto ,  Nobuaki Hirai ,  Yoshinobu Ishida

IPC分类号： G11B19/02 ,  G11B19/04 ,  G11B20/10 ,  G11B27/00 ,  G11B27/10 ,  G11B27/22 ,  G11B27/34 ,  G11B27/36 ,  G11B7/00

CPC分类号： G11B20/10527 ,  G11B19/02 ,  G11B19/04 ,  G11B27/002 ,  G11B27/105 ,  G11B27/22 ,  G11B27/34 ,  G11B27/36 ,  G11B2020/10592 ,  G11B2220/2529 ,  G11B2220/2545

摘要： An information reproduction apparatus capable of reducing or eliminating the mute period when a pickup jumps during the reproduction or when a disk is changed in an information reproduction system provided with a disk changer mechanism for selecting one disk from plural disks, or when a disk is forced to change, or an information reproduction apparatus of displaying the time information corresponding to the actual outputting time of information from the output terminal by correcting the time information included in the information read from the recording medium or determined by the recording address, or an information reproduction system provided with a disk changer mechanism capable of checking the contents of other disks during reproduction, or system of reproducing only parts of information which allow to view the contents of all disks.

摘要翻译： 一种信息再现装置，其能够减少或消除在再现期间拾取器跳跃或当设置有用于从多个盘选择一个盘的盘片更换器机构的信息再现系统中或当盘被强制时的盘改变时的静音时段 或者通过校正从记录介质读取的信息中包含的或由记录地址确定的信息再现来显示来自输出端的信息的实际输出时间的时间信息的信息再现装置，或信息再现装置 具有能够在再现期间检查其他盘的内容的盘片更换器机构的系统或仅再现允许查看所有盘的内容的信息的部分的系统。

公开(公告)号：US5848050A

公开(公告)日：1998-12-08

申请号：US799421

申请日：1997-02-12

申请人： Masato Nagasawa ,  Kazuhiko Nakane ,  Tsuyoshi Katayama ,  Koiti Komawaki ,  Yoshinobu Ishida

发明人： Masato Nagasawa ,  Kazuhiko Nakane ,  Tsuyoshi Katayama ,  Koiti Komawaki ,  Yoshinobu Ishida

IPC分类号： G11B7/007 ,  G11B7/09 ,  G11B27/19 ,  G11B27/30 ,  G11B7/24

CPC分类号： G11B7/00718 ,  G11B27/19 ,  G11B27/3027 ,  G11B7/00745 ,  G11B7/0901

摘要： In an optical disk having information recording tracks of lands and grooves, the grooves are wobbled in a radial direction of the disk so as to represent rotation information and sector management information, at least one pair of a wobbling part and an unwobbling part arranged one after another are provided every revolution, such that the wobbling parts in the grooves next to each other do not overlap in the radial direction of the disk. Since the wobble parts in the grooves next to each other do not overlap in the radial direction, the wobble data can be obtained regardless of whether a beam spot is tracing a land track or a groove track, and even in a data part of each sector.

摘要翻译： 在具有信息记录道脊和槽的轨道的光盘中，槽在盘的径向方向上摆动，以便表示旋转信息和扇区管理信息，至少一对摆动部分和排列后的部分 每转一圈，使得彼此相邻的凹槽中的摆动部分在盘的径向方向上不重叠。 由于彼此相邻的凹槽中的摆动部分在径向方向上不重叠，所以可以获得摆动数据，而不管束点是跟踪脊轨道还是凹槽轨迹，并且甚至在每个扇区的数据部分中 。

公开(公告)号：US5838658A

公开(公告)日：1998-11-17

申请号：US883173

申请日：1997-06-26

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

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

IPC分类号： G11B20/12 ,  G06F20060101 ,  G06F17/30 ,  G11B7/00 ,  G11B7/007 ,  G11B7/08 ,  G11B7/24073 ,  G11B20/18 ,  G11B27/24 ,  G11B27/30 ,  H04N20060101 ,  H04N7/62

CPC分类号： G11B27/3027 ,  G11B27/24 ,  G11B7/00718 ,  G11B7/00745 ,  G11B2220/216 ,  G11B2220/2562

摘要： An optical disc using a single-spiral land and groove track format and an address signal enabling simple sector address management and format compatibility with read-only optical disc media is disclosed. Four physical address areas PID1-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 header area is shared by groove track sectors and land track sectors. A groove track sector address is written to PID3 and PID4, and the sector address of the land track sector adjacent on the outside circumference side of that groove sector is written to PID1 and PID2. The address of each sector increases 1 in the same sequence as the sectors are formed in the recording spiral.

摘要翻译： 公开了一种使用单螺旋焊盘和凹槽磁道格式的光盘以及能够实现简单的扇区地址管理和与只读光盘介质的格式兼容性的地址信号。 四个物理地址区域PID1-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的轨道间距，并且PID3和PID4偏移一半的轨道间距 盘从槽轨道中心的内周，并且标头区域由凹槽轨道扇区和脊轨道扇区共享。 凹槽轨道扇区地址被写入PID3和PID4，并且在该凹槽扇区的外圆周侧相邻的脊轨道扇区的扇区地址被写入PID1和PID2。 每个扇区的地址以与记录螺旋形成的扇区相同的顺序增加1。

公开(公告)号：US5233480A

公开(公告)日：1993-08-03

申请号：US941012

申请日：1992-09-04

申请人： Kazuhito Endo ,  Masayuki Ishida ,  Yoshinobu Ishida

发明人： Kazuhito Endo ,  Masayuki Ishida ,  Yoshinobu Ishida

IPC分类号： G11B20/10 ,  G11B20/18

CPC分类号： G11B20/10527 ,  G11B20/1809 ,  G11B20/1876

摘要： A magnetic recorder/reproducer converts two-channel analog signals into digital signals by a sample-and-hold/A-D converter circuit (3) and controls addresses in a memory circuit (4) by a memory address control circuit (5), to distribute the digital signals into odd sample groups and even sample groups per each channel for arraying the odd sample groups and the even sample groups of the same channel in alternate scanning intervals, thereby to write the same in the memory circuit so that the odd samples and the even samples of the same channel are arrayed in positions separated from each other along the direction of scanning by rotary heads (10, 11). The digital signals thus permutated are modulated by a modulation circuit (7), to be recorded in a magnetic tape by the rotary heads. The digital signals reproduced by the rotary heads are demodulated by a demodulation circuit (14), to be stored in a memory circuit (15). A memory address control circuit (16) controls addresses so as to permutate samples of the reproduced digital signals stored in the memory circuit to be in the original array thereof. The reproduced digital signals read from the memory circuit are converted into analog signals by a D-A converter (18), to be outputted through a low-pass filter (19).

摘要翻译： 磁记录器/再现器通过采样保持/ AD转换器电路（3）将双通道模拟信号转换为数字信号，并通过存储器地址控制电路（5）控制存储器电路（4）中的地址，以分布 每个通道将数字信号转换成奇数采样组和均匀采样组，用于以交替扫描间隔排列相同通道的奇数采样组和偶采样组，从而将其写入存储电路，使奇数采样和 相同通道的均匀样品被排列在沿着旋转头（10,11）的扫描方向彼此分开的位置。 这样排列的数字信号由调制电路（7）调制，由旋转磁头记录在磁带中。 由旋转磁头重放的数字信号由解调电路（14）进行解调，存储在存储电路（15）中。 存储器地址控制电路（16）控制地址，以便将存储在存储器电路中的再现的数字信号的采样置换成其原始阵列。 从存储电路读出的再现的数字信号由D-A转换器（18）转换为模拟信号，通过低通滤波器（19）输出。

公开(公告)号：US5146370A

公开(公告)日：1992-09-08

申请号：US732020

申请日：1991-07-18

申请人： Kazuhito Endo ,  Masayuki Ishida ,  Yoshinobu Ishida

发明人： Kazuhito Endo ,  Masayuki Ishida ,  Yoshinobu Ishida

IPC分类号： G11B20/10 ,  G11B20/18

CPC分类号： G11B20/1876 ,  G11B20/10527 ,  G11B20/1809

摘要： A magnetic recorder/reproducer converts two-channel analog signals into digital signals by a sample-and-hold/A-D converter circuit (3) and controls addresses in a memory circuit (4) by a memory address control circuit (5), to distribute the digital signals into odd sample groups and even sample groups per each channel for arraying the odd sample groups and the even sample groups of the same channel in alternate scanning intervals, thereby to write the same in the memory circuit so that the odd samples and the even samples of the same channel are arrayed in positions separated from each other along the direction of scanning by rotary heads (10, 11). The digital signals thus permutated are modulated by a modulation circuit (7), to be recorded in a magnetic tape by the rotary heads. The digital signals reproduced by the rotary heads are demodulated by a demodulation circuit (14), to be stored in a memory circuit (15). A memory address control circuit (16) controls addresses so as to permutate samples of the reproduced digital signals stored in the memory circuit to be in the original array thereof. The reproduced digital signals read from the memory circuit are converted into analog signals by a D-A converter (18), to be outputted through a low-pass filter (19).

摘要翻译： 磁记录器/再现器通过采样保持/ AD转换器电路（3）将双通道模拟信号转换为数字信号，并通过存储器地址控制电路（5）控制存储器电路（4）中的地址，以分布 每个通道将数字信号转换成奇数采样组和均匀采样组，用于以交替扫描间隔排列相同通道的奇数采样组和偶采样组，从而将其写入存储电路，使奇数采样和 相同通道的均匀样品被排列在沿着旋转头（10,11）的扫描方向彼此分开的位置。 这样排列的数字信号由调制电路（7）调制，由旋转磁头记录在磁带中。 由旋转磁头重放的数字信号由解调电路（14）进行解调，存储在存储电路（15）中。 存储器地址控制电路（16）控制地址，以便将存储在存储器电路中的再现的数字信号的采样置换成其原始阵列。 从存储电路读出的再现的数字信号由D-A转换器（18）转换为模拟信号，通过低通滤波器（19）输出。

公开(公告)号：US4905100A

公开(公告)日：1990-02-27

申请号：US214275

申请日：1988-06-30

申请人： Kazuhito Endo ,  Masayuki Ishida ,  Yoshinobu Ishida

发明人： Kazuhito Endo ,  Masayuki Ishida ,  Yoshinobu Ishida

IPC分类号： G11B20/10 ,  G11B20/18

CPC分类号： G11B20/1876 ,  G11B20/10527 ,  G11B20/1809

摘要： A magnetic recorder/reproducer converts two-channel analog signals into digital signals by a sample-and-hold/A-D converter circuit (3) and controls addresses in a memory circuit (4) by a memory address control circuit (5), to distribute the digital signals into odd sample groups and even sample groups per each channel for arraying the odd sample groups and the even sample groups of the same channel in alternate scanning intervals, thereby to write the same in the memory circuit so that the odd samples and the even samples of the same channel are arrayed in positions separated from each other along the direction of scanning by rotary heads (10, 11). The digital signals thus permutated are modulated by a modulation circuit (7), to be recorded in a magnetic tape by the rotary heads. The digital signals reproduced by the rotary heads are demodulated by a demodulation circuit (14), to be stored in a memory circuit (15). A memory address control circuit (16) controls addresses so as to permutate samples of the reproduced digital signals stored in the memory circuit to be in the original array thereof. The reproduced digital signals read from the memory circuit are converted into analog signals by a D-A converter (18), to be outputted through a low-pass filter (19).