公开(公告)号：US5363362A

公开(公告)日：1994-11-08

申请号：US48359

申请日：1993-04-15

申请人： Yasuaki Maeda ,  Ryo Ando ,  Hideo Obata ,  Hideki Nagashima ,  Tadao Yoshida ,  Kazuhiko Fujiie ,  Hirotoshi Fujisawa ,  Hiroshi Mukawa

发明人： Yasuaki Maeda ,  Ryo Ando ,  Hideo Obata ,  Hideki Nagashima ,  Tadao Yoshida ,  Kazuhiko Fujiie ,  Hirotoshi Fujisawa ,  Hiroshi Mukawa

IPC分类号： G11B20/12 ,  G11B7/013 ,  G11B20/00 ,  G11B20/10 ,  G11B27/00 ,  G11B27/10 ,  G11B27/30 ,  G11B27/34 ,  G11B5/09

CPC分类号： G11B20/00007 ,  G11B20/10527 ,  G11B27/005 ,  G11B27/3027 ,  G11B27/34 ,  G11B7/013 ,  G11B2020/1277 ,  G11B2220/2525 ,  G11B2220/2545 ,  G11B2220/255 ,  G11B27/3063

摘要： There is provided a disc recording apparatus for recording digital data by an optical unit in such a manner that time compressed digital data are arranged into a plurality of clusters at an interval of a predetermined number of sectors, a cluster-linking sector having a length longer than an interleaving length is provided at each linking part of each cluster, and the digital data are subsequently interleaved and recorded on a disc-shaped recording medium so that interleaving at the time of data recording on the cluster-by-cluster basis is within the range of the cluster-linking sector. There is also provided a disc reproducing apparatus for reproducing digital data by an optical unit in which playback data are obtained by reproducing record data recorded on a disc-shaped recording medium in such a manner that a cluster-linking sector longer than an interleaving length is provided in a linking section of each cluster composed of a predetermined number of sectors, the resulting data is interleaved and recorded on the disc-shaped recording medium, and the playback data are deinterleaved and freed or the cluster-linking sectors so as to be stored transiently in a storage unit. Playback data are written in the storage unit when the data volume of playback data stored in the storage unit becomes smaller than a predetermined volume to maintain a readout space in the storage unit which is in excess of the predetermined data volume. In this manner, data may be read out continuously from the storage unit at a predetermined rate without interrupting the reproducing operation at the cluster-linking sector of the data recorded on the medium.

摘要翻译： 提供了一种用于以光学单元记录数字数据的盘记录装置，使得时间压缩的数字数据以预定数量的扇区的间隔被布置成多个簇，具有长度更长的簇连接扇区 比在每个簇的每个链接部分处提供交织长度，并且数字数据随后被交织并记录在盘形记录介质上，使得在逐个簇的基础上的数据记录时的交织在 集群链接部门的范围。 还提供了一种用于通过光学单元再现数字数据的盘再现装置，其中通过以记录在盘形记录介质上的记录数据来再现数据，使得长于交织长度的簇链接扇区 提供在由预定数量的扇区组成的每个簇的链接部分中，所得到的数据被交织并记录在盘形记录介质上，并且重放数据被去交织和释放，或者聚类链接扇区被存储 暂时在存储单元中。 当存储在存储单元中的重放数据的数据量变得小于预定的音量时，将重放数据写入存储单元，以保持存储单元中超出预定数据量的读出空间。 以这种方式，可以以预定的速率从存储单元以连续的数据读取数据，而不会中断记录在介质上的数据的聚类链接扇区的再现操作。

公开(公告)号：US5963521A

公开(公告)日：1999-10-05

申请号：US151894

申请日：1998-09-11

申请人： Hideki Nagashima ,  Ryo Ando ,  Yasuaki Maeda ,  Hideo Obata ,  Tadao Yoshida ,  Kazuhiko Fujiie

发明人： Hideki Nagashima ,  Ryo Ando ,  Yasuaki Maeda ,  Hideo Obata ,  Tadao Yoshida ,  Kazuhiko Fujiie

IPC分类号： G11B7/28 ,  G11B11/105 ,  G11B27/034 ,  G11B27/30 ,  G11B7/00

CPC分类号： G11B27/034 ,  G11B11/10502 ,  G11B7/28 ,  G11B11/10504 ,  G11B11/10515 ,  G11B11/10595 ,  G11B2220/213 ,  G11B2220/2525 ,  G11B2220/2545 ,  G11B2220/255 ,  G11B27/3063

摘要： A high speed dubbing is to be realized with two recording and/or reproducing units for compressed data. To this end, a magneto-optical disc 32 is read by an optical head 33 and compressed data produced via a decoder 41 are delivered to a memory 14 via a switch 37. The data are then delivered to a magnetic head driving circuit 16 via an encoder 15 for direct writing on a magneto-optical disc 2. In this manner, compressed data are directly dubbed without expansion to realize high speed dubbing.

摘要翻译： 要实现用于压缩数据的两个记录和/或再现单元的高速配音。 为此，光学磁头33读取磁光盘32，经由解码器41产生的压缩数据经由开关37被传送到存储器14.然后，数据经由 编码器15，用于直接写在磁光盘2上。以这种方式，压缩数据直接配音而不扩展，以实现高速配音。

公开(公告)号：US06205104B1

公开(公告)日：2001-03-20

申请号：US08129029

申请日：1993-09-29

申请人： Hideki Nagashima ,  Ryo Ando ,  Yasuaki Maeda ,  Hideo Obata ,  Tadao Yoshida ,  Kazuhiko Fujiie

发明人： Hideki Nagashima ,  Ryo Ando ,  Yasuaki Maeda ,  Hideo Obata ,  Tadao Yoshida ,  Kazuhiko Fujiie

IPC分类号： G11B70045

CPC分类号： G11B7/28 ,  G11B11/10502 ,  G11B11/10504 ,  G11B11/10515 ,  G11B11/10595 ,  G11B27/034 ,  G11B27/3063 ,  G11B2220/213 ,  G11B2220/2525 ,  G11B2220/2545 ,  G11B2220/255

摘要： A high speed dubbing is to be realized with two recording and/or reproducing units for compressed data. To this end, a magneto-optical disc 32 is read by an optical head 33 and compressed data produced via a decoder 41 are delivered to a memory 14 via a switch 37. The data are then delivered to a magnetic head driving circuit 16 via an encoder 15 for direct writing on a magneto-optical disc 2. In this manner, compressed data are directly dubbed without expansion to realize high speed dubbing.

摘要翻译： 要实现用于压缩数据的两个记录和/或再现单元的高速配音。 为此，光学磁头33读取磁光盘32，经由解码器41产生的压缩数据经由开关37被传送到存储器14.然后，数据经由 编码器15，用于直接写在磁光盘2上。以这种方式，压缩数据直接配音而不扩展，以实现高速配音。

公开(公告)号：US5243588A

公开(公告)日：1993-09-07

申请号：US746787

申请日：1991-08-16

申请人： Yasuaki Maeda ,  Ryo Ando ,  Hideo Obata ,  Hideki Nagashima ,  Tadao Yoshida ,  Kazuhiko Fujiie ,  Hirotoshi Fujisawa ,  Hiroshi Mukawa

发明人： Yasuaki Maeda ,  Ryo Ando ,  Hideo Obata ,  Hideki Nagashima ,  Tadao Yoshida ,  Kazuhiko Fujiie ,  Hirotoshi Fujisawa ,  Hiroshi Mukawa

IPC分类号： G11B20/12 ,  G11B7/013 ,  G11B20/00 ,  G11B20/10 ,  G11B27/00 ,  G11B27/10 ,  G11B27/30 ,  G11B27/34

CPC分类号： G11B20/00007 ,  G11B20/10527 ,  G11B27/005 ,  G11B27/3027 ,  G11B27/34 ,  G11B7/013 ,  G11B2020/1277 ,  G11B2220/2525 ,  G11B2220/2545 ,  G11B2220/255 ,  G11B27/3063

摘要： There is provided a disc recording apparatus for recording digital data by an optical unit in such a manner that time compressed digital data are arranged into a plurality of clusters at an interval of a predetermined number of sectors, a cluster-linking sector having a length longer than an interleaving length is provided at each linking part of each cluster, and the digital data are subsequently interleaved and recorded on a disc-shaped recording medium so that interleaving at the time of data recording on the cluster-by-cluster basis is within the range of the cluster-linking sector. There is also provided a disc reproducing apparatus for reproducing digital data by an optical unit in which playback data are obtained by reproducing record data recorded on a disc-shaped recording medium in such a manner that a cluster-linking sector longer than an interleaving length is provided in a linking section of each cluster composed of a predetermined number of sectors, the resulting data is interleaved and recorded on the disc-shaped recording medium, and the playback data are deinterleaved and freed of the cluster-linking sectors so as to be stored transiently in a storage unit. Playback data are written in the storage unit when the data volume of playback data stored in the storage unit becomes smaller than a predetermined volume to maintain a readout space in the storage unit which is in excess of the predetermined data volume.

公开(公告)号：US5224087A

公开(公告)日：1993-06-29

申请号：US747182

申请日：1991-08-19

申请人： Yasuaki Maeda ,  Ryo Ando ,  Hideki Nagashima

发明人： Yasuaki Maeda ,  Ryo Ando ,  Hideki Nagashima

IPC分类号： G11B11/105 ,  G11B7/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/013 ,  G11B7/09 ,  G11B19/04 ,  G11B20/00 ,  G11B20/10 ,  G11B20/12 ,  G11B20/18 ,  G11B27/034 ,  G11B27/36 ,  H04N7/24

CPC分类号： G11B20/1254 ,  G11B11/10504 ,  G11B11/10595 ,  G11B20/00007 ,  G11B20/10 ,  G11B27/034 ,  G11B27/36 ,  G11B7/013 ,  G11B2020/1277 ,  G11B2220/2525

摘要： An apparatus for recording compressed digitized information to an optical disc by reading the digital data into a memory for transient storage. The digital input data thus written into the memory are sequentially read out of the memory and into an encoder at a transfer rate faster than the input transfer rate where the digital data are arranged in discrete clusters of record units including cluster-linking groups such that each record unit can be interleaved independently and without affecting other record units. The interleaved record units are then recorded onto an optical disc. Reproduction of the record units from the optical disk is carried out by reversing the process.

公开(公告)号：US5109369A

公开(公告)日：1992-04-28

申请号：US357262

申请日：1989-05-26

申请人： Yasuaki Maeda ,  Ryo Ando ,  Hideo Obata

发明人： Yasuaki Maeda ,  Ryo Ando ,  Hideo Obata

IPC分类号： G11B19/28 ,  G11B19/247 ,  G11B20/18 ,  G11B27/19 ,  G11B27/30

CPC分类号： G11B27/19 ,  G11B19/247 ,  G11B20/1833 ,  G11B27/3027 ,  G11B2220/2525

摘要： An optical disc drive is disclosed in which an optical disc on which pregrooves are formed for affording wobble signals frequency modulated by predetermined data signals is driven at a constant linear velocity. Until the time that the data signals obtained upon demodulating the wobble signals are taken out correctly, the reproduced wobble signals are compared with a predetermined reference signal so that a spindle motor for rotating the optical disc is controlled so as to be driven at an approximately constant linear velocity. After it is detected that the data signals obtained upon demodulating the wobble signals are taken out correctly, the spindle motor is driven in a controlled manner on the basis of data signals obtained upon demodulating the reproduced wobble signals so that the spindle motor is controlled so as to be driven at a constant linear velocity. In this manner, the optical disc is controlled immediately at the start time of the optical disc or at the time of track jump by the optical head so that the optical disc is driven a constant linear velocity.

公开(公告)号：US09128707B2

公开(公告)日：2015-09-08

申请号：US13234360

申请日：2011-09-16

申请人： Motofumi Baba ,  Kazuhiko Narushima ,  Kenta Ogata ,  Masafumi Ono ,  Mitsunobu Mamiya ,  Kenji Kuroishi ,  Kouichi Azuma ,  Hidenori Horie ,  Masato Ishiyama ,  Keiko Shiraishi ,  Ryo Ando

发明人： Motofumi Baba ,  Kazuhiko Narushima ,  Kenta Ogata ,  Masafumi Ono ,  Mitsunobu Mamiya ,  Kenji Kuroishi ,  Kouichi Azuma ,  Hidenori Horie ,  Masato Ishiyama ,  Keiko Shiraishi ,  Ryo Ando

IPC分类号： G06F1/00 ,  G06F1/32 ,  G03G15/00

CPC分类号： G06F1/3203 ,  G03G15/5004 ,  G06F1/3231 ,  Y02D10/173

摘要： A power-supply control device includes a power-supply-state transition control section, body-capable-of-movement detection sections, and an instruction section. The power-supply-state transition control section shifts a state of an operation target section from one state to another state among power-supply states and a non-power-supply state. The body-capable-of-movement detection sections detect a body capable of movement in a region. The instruction section provides, on the basis of results of detection of the body capable of movement by the body-capable-of-movement detection sections, at least an instruction for shifting between one of the power-supply states and the non-power-supply state, among instructions for shifting the state of the operation target section from one state to another state with the power-supply-state transition control section.

摘要翻译： 电源控制装置包括电源状态转变控制部，移动体检测部和指示部。 电源状态转移控制部将电力供给状态和非供电状态之间的操作对象部的状态从一种状态转移到另一状态。 身体能力检测部检测能够在区域内移动的身体。 指令部根据能够通过身体检测部移动的身体的检测结果，提供至少一个用于在一个电源状态和非供电状态之间进行移位的指令， 在用电源状态转移控制部分将用于将操作目标部件的状态从一个状态转换到另一状态的指令中。

公开(公告)号：US07006413B2

公开(公告)日：2006-02-28

申请号：US10189392

申请日：2002-07-08

申请人： Seiryu Takayama ,  Takao Maruyama ,  Ryo Ando

发明人： Seiryu Takayama ,  Takao Maruyama ,  Ryo Ando

IPC分类号： G11B5/09

CPC分类号： G11B19/28

摘要： The present invention provides a disk driving apparatus which includes an interpolating edge circuit for generating an interpolating signal in accordance with a cycle of an edge detection signal, and a phase switching unit for performing phase switching by both the timing signal and the interpolating signal when a period for which the edge detection signal is normally generated reaches a predetermined value.

公开(公告)号：US20050237095A1

公开(公告)日：2005-10-27

申请号：US11107905

申请日：2005-04-18

申请人： Ryo Ando

发明人： Ryo Ando

IPC分类号： H03K19/003 ,  G01F15/00 ,  G01F15/06 ,  H03F3/45 ,  H03K17/16 ,  H03K19/0175 ,  H03K3/017

CPC分类号： H03F3/45085 ,  G01F15/00 ,  G01F15/068 ,  H03F2200/114 ,  H03F2203/45674 ,  H03F2203/45686

摘要： Unwanted electromagnetic waves are eliminated in a frequency output circuit comprising an open-collector output terminal whereby radio noise can be reduced. A frequency output circuit 10 comprises an open-collector transistor Q4 with an open-collector output terminal connected to a pull-up resistor Rf connected to an external power supply Vex. A current limiting circuit 16 limits a current through the output terminal such that a high potential and a low potential of the output waveform of a frequency signal outputted by an output circuit 12 are smoothly switched. The current limiting circuit 16 is formed by a differential pair circuit of transistors Q1 and Q2 each with a resistor provided in the emitter thereof, and a current mirror circuit comprising an open-collector transistor, for example.

摘要翻译： 在包括集电极开路输出端子的频率输出电路中消除了不需要的电磁波，从而可以降低无线电噪声。 频率输出电路10包括开集电极晶体管Q 4，集电极输出端连接到连接到外部电源Vex的上拉电阻Rf。 限流电路16限制通过输出端子的电流，使得输出电路12输出的频率信号的输出波形的高电位和低电位平滑地切换。 电流限制电路16由晶体管Q 1和Q 2的差分对电路形成，每个晶体管Q 1和Q 2都具有设置在其发射极中的电阻器，以及包括集电极晶体管的电流镜电路。

公开(公告)号：US20050185550A1

公开(公告)日：2005-08-25

申请号：US11057339

申请日：2005-02-11

申请人： Takeshi Yamaguchi ,  Ryo Ando

发明人： Takeshi Yamaguchi ,  Ryo Ando

IPC分类号： G11B7/005 ,  G11B20/10

CPC分类号： G11B20/10203

摘要： An optical disk reproducing device has a defect-signal generating circuit including a peak-holding-signal generating circuit for generating a peak-hold signal based on an RF signal read from a recording medium, an intermediate-signal generating circuit for generating an intermediate signal based on the peak-hold signal, a signal-level adjusting circuit for generating a threshold signal based on the intermediate signal, a threshold-signal adjusting circuit for adjusting the level of the threshold signal, and a comparator for generating a defect signal based on the peak-hold signal and threshold signal. The threshold-signal adjusting circuit includes at least one of: a first adjusting circuit for raising the threshold signal in the event the peak-hold signal falls below the threshold signal due to the peak-hold signal and the threshold signal being reversed; and a second adjusting circuit for lowering the threshold signal in the event the peak-hold signal exceeds the threshold signal, due to the reversal.

摘要翻译： 光盘再现装置具有缺陷信号发生电路，该缺陷信号产生电路包括：峰值保持信号产生电路，用于根据从记录介质读取的RF信号产生峰值保持信号;产生中间信号的中间信号产生电路 基于所述峰值保持信号，生成基于所述中间信号的阈值信号的信号电平调整电路，用于调整所述阈值信号的电平的阈值信号调整电路，以及基于 峰值保持信号和阈值信号。 阈值信号调整电路包括以下至少一个：第一调整电路，用于在峰值保持信号由于峰值保持信号和阈值信号反相而在阈值信号下降的情况下提升阈值信号; 以及第二调整电路，用于在峰值保持信号超过阈值信号的情况下，由于反转而降低阈值信号。