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1. 发明授权

US4540897A Digital modulation signal reading device 失效
标题翻译：数字调制信号读取装置
公开(公告)号：US4540897A
公开(公告)日：1985-09-10
申请号：US507645
申请日：1983-06-27
申请人： Saburo Takaoka , Ryuichi Naito , Fumihiko Yokogawa , Youichi Ogawa
发明人： Saburo Takaoka , Ryuichi Naito , Fumihiko Yokogawa , Youichi Ogawa
IPC分类号： G11B20/14 , G11B5/09 , G11B20/10 , H03K5/08 , H04L25/03 , H04L27/00 , H04L27/14
CPC分类号： G11B20/10009 , G11B20/10527
摘要： A data reading device for reading out data modulated according to a system wherein the time ratio of low to high level signals is substantially unity employs a time ratio detector and an intermediate level detector. A comparator compares the reproduced output level with a synthesized signal which may represent a combination of the outputs of the time ratio detector and the intermediate level detector.
摘要翻译：一种用于读出根据其中低电平信号的时间比基本上为单位的系统调制的数据的数据读取装置，其使用时间比率检测器和中间电平检测器。比较器将再现的输出电平与可以表示时间比率检测器和中间电平检测器的输出的组合的合成信号进行比较。

2. 发明授权

US4145664A Audio signal compression and expansion system 失效
标题翻译：音频信号压缩和扩展系统
公开(公告)号：US4145664A
公开(公告)日：1979-03-20
申请号：US892356
申请日：1978-03-31
申请人： Saburo Takaoka , Fumihiko Yokogawa , Tadahiro Yamaguchi
发明人： Saburo Takaoka , Fumihiko Yokogawa , Tadahiro Yamaguchi
IPC分类号： H04B1/62 , G11B20/04 , H03G7/00 , H03G9/02 , H04B1/64 , H03G7/08
CPC分类号： H04B1/64 , H03G9/025
摘要： The auxilliary signal path in a compander system includes, in series, a first amplifier 7, a weighting function amplifier 8, and a detection circuit 9. The output of the latter controls the gain of a voltage-controlled variable gain circuit 11 also connected to the first amplifier output, and the integrated output of the variable gain circuit is fed back to the input of the first amplifier via a subtraction circuit 13 also supplied with the auxilliary signal path input. Alternatively, the first amplifier may comprise an operational amplifier, in which case the integrated signal is directly coupled to one of its inputs.
摘要翻译：压缩扩展器系统中的辅助信号路径包括串联的第一放大器7，加权函数放大器8和检测电路9.后者的输出控制也连接到的控制可变增益电路11的增益第一放大器输出和可变增益电路的积分输出经由还具有辅助信号路径输入的减法电路13反馈到第一放大器的输入端。或者，第一放大器可以包括运算放大器，在这种情况下，集成信号直接耦合到其输入之一。

3. 发明授权

US4929917A Phase-locked loop circuit 失效
标题翻译：锁相环电路
公开(公告)号：US4929917A
公开(公告)日：1990-05-29
申请号：US288575
申请日：1988-12-22
申请人： Fumihiko Yokogawa , Ryuichi Naito
发明人： Fumihiko Yokogawa , Ryuichi Naito
IPC分类号： G11B7/005 , G11B20/14 , H03L7/00 , H03L7/089 , H03L7/093 , H03L7/10 , H03L7/14
CPC分类号： H03L7/089 , G11B20/1403 , H03L7/093 , G11B7/005
摘要： A phase-locked loop circuit (PLL) to which a phase-synchronization signal is intermittently supplied, both of the natural angular frequency of the PLL and the damping factor of the same are so determined as to prevent a phase difference produced at the next sampling point from exceeding the linear property range of a phase comparator even when the extraneous electrical disturbance enters the PLL. In addition, when the level of a clock control signal supplied to a variable frequency oscillator which varies the clock signal of the PLL in phase and frequency exceeds a predetermined value, the level of the clock control signal is limited to the predetermined value. As a result, it is possible to prevent the output signal of the phase difference from having any discontinuity.
摘要翻译：间歇地提供相位同步信号的锁相环电路（PLL）被确定为PLL的固有角频率和其阻尼因子，以防止在下一次采样时产生的相位差即使当外部电气干扰进入PLL时，超出相位比较器的线性特性范围。此外，当提供给变频PLL的时钟信号在相位和频率上变化的可变频率振荡器的时钟控制信号的电平超过预定值时，时钟控制信号的电平被限制为预定值。结果，可以防止相位差的输出信号具有任何不连续性。

4. 发明授权

US4829502A Automatic loading disc player 失效
标题翻译：自动加载光盘播放器
公开(公告)号：US4829502A
公开(公告)日：1989-05-09
申请号：US81441
申请日：1987-08-04
申请人： Yoshiro Aoyagi , Toshiyuki Kimura , Susumu Niinuma , Minoru Yoshioka , Fumihiko Yokogawa , Keiichi Matsumoto , Akira Haeno , Takashi Sato , Yoshiro Nishi , Yoshihiko Watanabe , Hiroyuki Hirano , Youichi Ogawa
发明人： Yoshiro Aoyagi , Toshiyuki Kimura , Susumu Niinuma , Minoru Yoshioka , Fumihiko Yokogawa , Keiichi Matsumoto , Akira Haeno , Takashi Sato , Yoshiro Nishi , Yoshihiko Watanabe , Hiroyuki Hirano , Youichi Ogawa
IPC分类号： G11B7/0037 , G11B7/085 , G11B17/00 , G11B19/00 , G11B19/04 , G11B21/02 , G11B27/10 , G11B33/08 , G11B33/10 , G11B33/14
CPC分类号： G11B19/00 , G11B17/00 , G11B19/04 , G11B21/02 , G11B27/105 , G11B33/08 , G11B33/10 , G11B33/14 , G11B7/0037 , G11B7/08547
摘要： An automatic disc player including a housing, disc carrier means to convey a disc between predetermined playback position and a predetermined withdrawal position ready to be withdrawn out of the housing upon termination of plaback operation, signal generating means for producing control signals to be predominant over various steps of the playback operation, and an electric control circuit responsive to the control signals to control the various steps of the playback operation, the signal generating means comprising position detecting means responsive to movement of the disc to the withdrawal position and operative to produce a signal when the disc being moved away from the playback position reaches the withdrawal position, and playback re-start switch means which is operative to produce a signal in response to slight movement of the disc from the withdrawal position toward the playback position, the control signals to be produced by the signal generating means including signals to control the start of playback operation. The position detecting means and the playback re-start switch means are connected in series with between ground and the control circuit, and the signals to control the start of playback operation include the signal from the playback re-start switch means.
摘要翻译：一种自动盘片播放器，包括一个外壳，盘片承载装置，用于在预定播放位置和一个预定的撤销位置之间传送一个盘片，准备在平板打印操作终止时将其从外壳中取出;信号发生装置，用于产生控制信号，重放操作的步骤，以及响应于控制信号来控制重放操作的各种步骤的电气控制电路，信号产生装置包括位置检测装置，其响应于盘的移动到撤回位置并且可操作以产生信号当光盘离开播放位置移动到达取出位置时，以及播放重启开关装置，其响应于从取出位置向重放位置的轻微移动而产生信号，控制信号到由信号产生装置产生，包括信号 rol开始播放操作。位置检测装置和重放重启开关装置与接地和控制电路串联连接，控制重放操作开始的信号包括来自重放重启开关装置的信号。

5. 发明授权

US4701902A Automatic loading disc player 失效
标题翻译：自动加载光盘播放器
公开(公告)号：US4701902A
公开(公告)日：1987-10-20
申请号：US727780
申请日：1985-04-26
申请人： Yoshiro Aoyagi , Toshiyuki Kimura , Susumu Niinuma , Minoru Yoshioka , Fumihiko Yokogawa , Keiichi Matsumoto , Akira Haeno , Takashi Sato , Yoshiro Nishi , Yoshihiko Watanabe , Hiroyuki Hirano , Youichi Ogawa
发明人： Yoshiro Aoyagi , Toshiyuki Kimura , Susumu Niinuma , Minoru Yoshioka , Fumihiko Yokogawa , Keiichi Matsumoto , Akira Haeno , Takashi Sato , Yoshiro Nishi , Yoshihiko Watanabe , Hiroyuki Hirano , Youichi Ogawa
IPC分类号： G11B7/0037 , G11B7/085 , G11B17/00 , G11B19/00 , G11B19/04 , G11B21/02 , G11B27/10 , G11B33/08 , G11B33/10 , G11B33/14 , G11B25/04
CPC分类号： G11B19/00 , G11B17/00 , G11B19/04 , G11B21/02 , G11B27/105 , G11B33/08 , G11B33/10 , G11B33/14 , G11B7/0037 , G11B7/08547
摘要： An automatic disc player including a housing, disc carrier means to convey a disc between predetermined playback position and a predetermined withdrawal position ready to be withdrawn out of the housing upon termination of playback operation, signal generating means for producing control signals to be predominant over various steps of the playback operation, and an electric control circuit responsive to the control signals to control the various steps of the playback operation, the signal generating means comprising position detecting means responsive to movement of the disc to the withdrawal position and operative to produce a signal when the disc being moved away from the playback position reaches the withdrawal position, and playback re-start switch means which is operative to produce a signal in response to slight movement of the disc from the withdrawal position toward the playback position, the control signals to be produced by the signal generating means including signals to control the start of playback operation. The position detecting means and the playback re-start switch means are connected in series with between ground and the control circuit, and the signals to control the start of playback operation include the signal from the playback re-start switch means.
摘要翻译：一种自动盘片播放机，包括一个外壳，一个盘载体装置，用于在重放操作终止之后，在预定播放位置和预定的取出位置之间传送一个盘，以便将其从外壳中取出;信号发生装置，用于产生控制信号，重放操作的步骤，以及响应于控制信号来控制重放操作的各种步骤的电气控制电路，信号产生装置包括位置检测装置，其响应于盘的移动到撤回位置并且可操作以产生信号当光盘离开播放位置移动到达取出位置时，以及播放重启开关装置，其响应于从取出位置向重放位置的轻微移动而产生信号，控制信号到由包括信号的信号发生装置产生开始播放操作。位置检测装置和重放重启开关装置与接地和控制电路串联连接，控制重放操作开始的信号包括来自重放重启开关装置的信号。

6. 发明授权

US4879705A Automatic loading disc player 失效
标题翻译：自动加载光盘播放器
公开(公告)号：US4879705A
公开(公告)日：1989-11-07
申请号：US244641
申请日：1988-09-12
申请人： Yoshio Aoyagi , Hiroyuki Hirano , Toshiyuki Kimura , Susumu Niinuma , Minoru Yoshioka , Akira Haeno , Takashi Sato , Yoshiro Nishi , Yoshihiko Watanabe , Fumihiko Yokogawa , Keiichi Matsumoto , Youichi Ogawa
发明人： Yoshio Aoyagi , Hiroyuki Hirano , Toshiyuki Kimura , Susumu Niinuma , Minoru Yoshioka , Akira Haeno , Takashi Sato , Yoshiro Nishi , Yoshihiko Watanabe , Fumihiko Yokogawa , Keiichi Matsumoto , Youichi Ogawa
IPC分类号： G11B7/09 , G11B17/04 , G11B21/08 , G11B27/10
CPC分类号： G11B17/051 , G11B21/085 , G11B27/105 , G11B7/0946
摘要： A disc player comprising a signal pickup unit to read information from a disc on which program information including address information is recorded, the signal pickup unit being movable with respect to the disc, pickup drive means to drive the pickup unit for movement with respect to the disc, and a control circuit including an address memory for storing the newest one of the addresses read from the disc, a counter operative to count addresses at predetermined time intervals for producing a signal representative of an expected address indicative of the position to which the pickup unit is expected to move in the next, the expected address being updated at predetermined time intervals, a detector circuit to produce a signal each time a discrepancy is found to exist between the newest address and the expected address. In response to the signal from the detector circuit, the pickup drive means is actuated to drive the pickup unit for movement to the position dictated by the newest address or the expected address.
摘要翻译：一种光盘播放器，包括信号拾取单元，用于从盘上读取包含地址信息的节目信息的信息，信号拾取单元可相对于盘移动;拾取驱动装置，用于驱动拾取单元相对于盘，以及包括用于存储从盘读取的最新地址的地址存储器的控制电路，用于以预定时间间隔对地址进行计数的计数器，用于产生代表指示拾取器的位置的预期地址的信号预期单元在下一个移动，预期地址以预定的时间间隔更新，检测器电路每当在最新地址和预期地址之间存在差异时产生信号。响应于来自检测器电路的信号，拾取器驱动装置被致动以驱动拾取单元移动到由最新地址或预期地址指定的位置。

7. 再颁专利

USRE40312E1 Digital data transmitting method 有权
标题翻译：数字数据传输方式
公开(公告)号：USRE40312E1
公开(公告)日：2008-05-13
申请号：US10785864
申请日：2004-02-25
申请人： Tadashi Kojima , Koichi Hirayama , Hisashi Yamada , Yoshiaki Moriyama , Fumihiko Yokogawa , Takao Arai , Toshifumi Takeuchi , Shinichi Tanaka , Akira Kurahashi , Toshiyuki Shimada
发明人： Tadashi Kojima , Koichi Hirayama , Hisashi Yamada , Yoshiaki Moriyama , Fumihiko Yokogawa , Takao Arai , Toshifumi Takeuchi , Shinichi Tanaka , Akira Kurahashi , Toshiyuki Shimada
IPC分类号： H04B14/04
CPC分类号： H03M5/145 , G11B20/1426 , H04L7/041 , H04L25/4906
摘要： A transmitting method of digital data whereby information data can be reproduced at a high precision. In order to retain digital data in sectors comprising a plurality of sync frames and sequentially transmit, the sync frame is comprised of the sync signal and the run length limited code which satisfies the limitations of the minimum run length and the maximum run length, and the sync signal includes the sync pattern constituted by a bit pattern of a run length that is longer than the maximum run length by only 3T and addition bit patterns which are arranged before and after the bit pattern and each of which has a urn length that is longer than the minimum run length. The sync signal includes a specific code which indicates a position in the sector and which enables the DC control to be performed.
摘要翻译：数字数据的发送方法，可以高精度地再现信息数据。为了在包括多个同步帧的扇区中保留数字数据并顺序地发送，同步帧包括满足最小游程长度和最大游程长度的限制的同步信号和游程长度限制码，并且同步信号包括由游程长度比最大游程长度仅3T的位模式构成的同步模式，以及排列在位模式之前和之后的相加位模式，并且每个模式的urn长度为长于最小游程长度。同步信号包括指示扇区中的位置并且能够执行DC控制的特定代码。

8. 发明授权

US06968121B2 Video disc having an aspect ratio information and video disc player having an aspect ratio converting function 失效
标题翻译：具有宽高比信息的视频盘和具有纵横比转换功能的视频盘播放器
公开(公告)号：US06968121B2
公开(公告)日：2005-11-22
申请号：US10231340
申请日：2002-08-30
申请人： Fumihiko Yokogawa
发明人： Fumihiko Yokogawa
IPC分类号： H04N3/22 , H04N5/85 , H04N5/91 , H04N7/00 , H04N7/015 , H04N9/79 , H04N9/82
CPC分类号： H04N9/7925 , H04N5/85 , H04N9/8205
摘要： Image information is reproduced in respectively correspondence to monitors of different aspect ratios as in the NTSC system or HDTV system adaptive type. The image information recorded on a video disc is reproduced. An ID signal held in the video disc is detected. The aspect ratio of the image information to be generated is designated. Only when the aspect ratio indicated by the detected ID signal differs from the designated aspect ratio, the reproduced image information is converted into the image information of the designated aspect ratio. A standardized image signal is produced on the basis of the converted image information.
摘要翻译：图像信息分别对应于NTSC制或HDTV系统自适应型的不同宽高比的监视器。记录在视频盘上的图像信息被再现。检测保持在视频盘中的ID信号。指定要生成的图像信息的纵横比。只有当由检测到的ID信号指示的宽高比与指定的宽高比不同时，再现的图像信息才被转换成指定宽高比的图像信息。基于转换的图像信息生成标准化图像信号。

9. 发明授权

US5646932A Optical disk, tracking error signal generating apparatus, and tracking control apparatus 失效
标题翻译：光盘，跟踪误差信号发生装置和跟踪控制装置
公开(公告)号：US5646932A
公开(公告)日：1997-07-08
申请号：US371119
申请日：1995-01-11
申请人： Hiroki Kuribayashi , Fumihiko Yokogawa
发明人： Hiroki Kuribayashi , Fumihiko Yokogawa
IPC分类号： G11B7/00 , G11B7/005 , G11B7/007 , G11B7/085 , G11B7/09 , G11B7/095 , G11B21/10 , G11B7/24
CPC分类号： G11B7/0938 , G11B7/0903
摘要： An optical disk includes: a plurality of recording tracks, each of the recording tracks having a data area for storing data, and a servo control information area for storing servo information; and tracking pits respectively formed on n neighboring recording tracks, which are adjacent to each other in a radial direction of the optical disk, where n is an integer not less than 3. The tracking pits are located in the servo control information area of each of the n neighboring recording tracks and are spaced apart from each other by a distance not less than a radius of a beam spot for reading data from the optical disk. The tracking pits of the n neighboring recording tracks are located on different radial lines of the optical disk.
摘要翻译：光盘包括：多个记录道，每个记录道具有用于存储数据的数据区，以及用于存储伺服信息的伺服控制信息区; 以及分别形成在光盘的径向上彼此相邻的n个相邻记录磁道上的跟踪凹坑，其中n是不小于3的整数。跟踪凹坑位于每个的伺服控制信息区域中 n个相邻的记录轨道，并且彼此间隔开不少于用于从光盘读取数据的光束点的半径的距离。 n个相邻记录磁道的跟踪凹坑位于光盘的不同径向线上。

10. 发明授权

US5583846A Optical disc and system for generating a tracking error signal for the optical disc 失效
标题翻译：用于产生光盘跟踪误差信号的光盘和系统
公开(公告)号：US5583846A
公开(公告)日：1996-12-10
申请号：US512345
申请日：1995-08-08
申请人： Fumihiko Yokogawa
发明人： Fumihiko Yokogawa
IPC分类号： G11B7/00 , G11B7/005 , G11B7/007 , G11B7/09 , G11B7/095 , G11B7/24 , G11B27/19
CPC分类号： G11B7/00745 , G11B27/19 , G11B7/0901 , G11B7/0938
摘要： A first tracking pit is disposed on one of sides of a track of an optical disc at a position corresponding to a first timing, and a second tracking pit is disposed on the other side of the track at a position corresponding to a second timing. The first tracking pits and the second tracking pits of adjacent two tracks are deflected in a time axis direction.
摘要翻译：在与第一定时对应的位置处，在光盘的轨道的一侧设置第一跟踪凹坑，并且在对应于第二定时的位置处，在轨道的另一侧上设置第二跟踪凹坑。相邻两个轨道的第一跟踪凹坑和第二跟踪凹坑在时间轴方向上偏转。

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