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1. 发明授权

US5841752A Disc drive unit 失效
标题翻译：光盘驱动器
公开(公告)号：US5841752A
公开(公告)日：1998-11-24
申请号：US512889
申请日：1995-08-09
申请人： Kiyoshi Ohmori , Sunao Aoki , Takeshi Funahashi , Yoshikatsu Niwa
发明人： Kiyoshi Ohmori , Sunao Aoki , Takeshi Funahashi , Yoshikatsu Niwa
IPC分类号： G11B21/12 , G11B5/54 , G11B11/105 , G11B17/04 , G11B19/00 , G11B33/02
CPC分类号： G11B17/041 , G11B11/10558 , G11B17/043 , G11B17/0438 , G11B19/00
摘要： A disc drive unit for driving a disc recording medium such as a magneto-optical disc accommodated in a disc cassette, comprises a chassis, a cassette holder having a pair of wall sections and moveable up and down between upper and lower positions with respect to the chassis, and the disc cassette being injectable into and ejectable from the cassette holder, a disc rotating mechanism being moveable up and down between upper and lower positions with respect to the chassis and chucked with the disc recording medium for rotatively driving the disc recording medium, height-level positioning members provided at the chassis, so that at least their upper ends are located at a higher level than the lower wall section of the cassette holder, when the cassette holder is held at its lower position, and a loading motor unit for shifting the cassette holder from its upper position to its lower position and for shifting the disc rotating mechanism from its lower position to its upper position, during loading of the disc cassette.
摘要翻译：用于驱动容纳在盘盒中的诸如磁光盘的盘记录介质的盘驱动单元包括底盘，具有一对壁部分的盒保持器，并且在上下位置之间相对于底盘，并且该盒式磁带可注射到盒式磁带架中并可从盒式磁带保持器中弹出，盘式旋转机构可相对于底架在上下位置之间上下移动，并与用于旋转驱动盘式记录介质的盘式记录介质夹紧，设置在底盘上的高度定位构件，使得当盒座保持在其下部位置时，至少其上端位于比盒座的下壁部更高的高度;以及装载电动机单元，将盒座从其上部位置移动到其下部位置，并且用于将盘旋转机构从其下部位置移动到其上部位置装载光盘盒。

2. 发明授权

US5815470A Disc drive unit 失效
标题翻译：光盘驱动器
公开(公告)号：US5815470A
公开(公告)日：1998-09-29
申请号：US843649
申请日：1997-04-10
申请人： Kiyoshi Ohmori , Sunao Aoki , Takeshi Funahashi , Yoshikatsu Niwa
发明人： Kiyoshi Ohmori , Sunao Aoki , Takeshi Funahashi , Yoshikatsu Niwa
IPC分类号： G11B21/12 , G11B5/54 , G11B11/105 , G11B17/04 , G11B19/00 , G11B5/012 , G11B33/02
CPC分类号： G11B17/041 , G11B11/10558 , G11B17/043 , G11B17/0438 , G11B19/00
摘要： A disc drive unit for a magneto-optical disc accommodated in a disc cassette, comprises a magnetic head for applying a magnetic field to the magneto-optical disc, a magnetic head moving mechanism for moving the magnetic head between a loading and unloading position, an eject mechanism for ejecting the disc cassette, a reversible motor, and a transmission device for transmitting a rotational force of the reversible motor to the magnetic-head moving mechanism by rotation of the motor in its one rotational direction and for transmitting the rotational force of the reversible motor to the eject mechanism in its other rotational direction whereby a controller is provided for controlling the reversible motor so that a rotational speed of the motor in the other rotational direction used for the eject mechanism is faster that the rotational speed of the reversible motor in the one rotational direction used for the magnetic-head moving mechanism in order to ensure the quick ejection of the disc cassette.
摘要翻译：用于容纳在盘盒中的磁光盘的盘驱动单元包括用于向磁光盘施加磁场的磁头，用于在加载和卸载位置之间移动磁头的磁头移动机构，用于弹出盘盒的弹出机构，可逆电动机和用于通过电动机沿其一个旋转方向的旋转将可逆电动机的旋转力传递到磁头移动机构的传动装置，可逆电动机在其另一转动方向上到排出机构，由此提供控制器来控制可逆电动机，使得用于排出机构的另一旋转方向上的电动机的转速快于可逆电动机的转速用于磁头移动机构的一个旋转方向，以确保盘的快速排出盒式磁带

3. 发明授权

US5508989A Optical disc apparatus 失效
标题翻译：光盘装置
公开(公告)号：US5508989A
公开(公告)日：1996-04-16
申请号：US517593
申请日：1995-08-22
申请人： Takeshi Funahashi , Yoshikatsu Niwa
发明人： Takeshi Funahashi , Yoshikatsu Niwa
IPC分类号： G11B20/10 , G11B7/0037 , G11B20/12 , G11B20/18 , G11B7/00
CPC分类号： G11B20/1883 , G11B2020/10759 , G11B2020/1893 , G11B2020/1896 , G11B2220/20 , G11B2220/2537 , G11B7/0037
摘要： A disc driving apparatus using SSA (sector slipping algorithm) and LRA (linear replacement algorithm) for defective sectors. This disc driving apparatus is simple in arrangement and can reproduce data at high speed in a simple processing on the basis of attribute data representing whether a defective sector is processed by the SSA or the LRA. This disc driving apparatus includes an optical head for reproducing data recorded in an optical disc, drive controller for controlling operation of the optical head, a memory for temporarily storing reproduced data, a DMA (dynamic memory access) controller for controlling access to the memory, and a system controller for controlling the drive controller and the DMA controller by supplying first and second command signals thereto in response to a main command signal requesting a write or read operation on a series of sectors.
摘要翻译：一种使用SSA（扇区滑动算法）和用于缺陷扇区的LRA（线性替换算法）的盘驱动装置。该盘驱动装置的布置简单，并且可以在表示是否由SSA或LRA处理缺陷扇区的属性数据的简单处理中高速再现数据。该盘驱动装置包括用于再现记录在光盘中的数据的光头，用于控制光头的操作的驱动控制器，用于临时存储再现数据的存储器，用于控制对存储器的访问的DMA（动态存储器访问）控制器，以及系统控制器，用于响应于请求对一系列扇区的写入或读取操作的主命令信号，通过向其提供第一和第二命令信号来控制驱动控制器和DMA控制器。

4. 发明授权

US5528571A Optical disc apparatus 失效
标题翻译：光盘装置
公开(公告)号：US5528571A
公开(公告)日：1996-06-18
申请号：US254971
申请日：1994-06-07
申请人： Takeshi Funahashi , Yoshikatsu Niwa
发明人： Takeshi Funahashi , Yoshikatsu Niwa
IPC分类号： G11B20/10 , G11B7/0037 , G11B20/12 , G11B20/18 , G11B7/00
CPC分类号： G11B20/1883 , G11B2020/10759 , G11B2020/1893 , G11B2020/1896 , G11B2220/20 , G11B2220/2537 , G11B7/0037
摘要： A disc driving apparatus using SSA (sector slipping algorithm) for defective sectors and LRA (linear replacement algorithm). This disc driving apparatus is simple in arrangement and can reproduce data at high speed in a simple processing on the basis of attribute data representing whether a defective sector is processed by the SSA or the LRA. This disc driving apparatus includes an optical head for reproducing data recorded in an optical disc, a drive controller for controlling operation of the optical head, a memory for temporarily storing reproduced data, a DMA (dynamic memory access) controller for controlling an access to the memory, and a system controller for controlling the drive controller and the DMA controller by supplying first and second command signals thereto in response to a main command signal requesting a write or read operation on a series of sectors.
摘要翻译：一种使用SSA（扇区滑动算法）用于缺陷扇区和LRA（线性替换算法）的盘驱动装置。该盘驱动装置的布置简单，并且可以在表示是否由SSA或LRA处理缺陷扇区的属性数据的简单处理中高速再现数据。该盘驱动装置包括用于再现记录在光盘中的数据的光头，用于控制光头的操作的驱动控制器，用于临时存储再现数据的存储器，用于控制对光盘的访问的DMA（动态存储器存取）控制器存储器和系统控制器，用于响应于请求对一系列扇区的写入或读取操作的主命令信号，通过向其提供第一和第二命令信号来控制驱动控制器和DMA控制器。

5. 发明授权

US5541903A System for accessing a disc drive with defect information 失效
标题翻译：用于访问具有缺陷信息的磁盘驱动器的系统
公开(公告)号：US5541903A
公开(公告)日：1996-07-30
申请号：US326026
申请日：1994-10-19
申请人： Takeshi Funahashi , Yoshikatsu Niwa
发明人： Takeshi Funahashi , Yoshikatsu Niwa
IPC分类号： G11B7/0037 , G11B20/18 , G11B23/03 , G11B27/10 , G11B7/00
CPC分类号： G11B20/1883 , G11B23/0302 , G11B27/105 , G11B2220/20 , G11B7/0037
摘要： A method of accessing a disc-shaped recording medium including the steps of (a) recording defect information on the disc-shaped recording medium including a first logical address data of defective sectors, the first logical address data being a serial logical address data assigned to all sectors including both effective and defective sectors, (b) recording on a predetermined physical location of the disc-shaped recording medium disc information containing recorded physical position information of the defect information which represents a physical data structure, (c) reading out the disc information from the disc-shaped recording medium, (d) reading out the defect information using the physical recorded position information contained in the disc information read out at step (c), (e) generating a first table using the defect information which is used to convert the first logical address data into a second logical address data, the second logical address data being an address data assigned only to the effective sectors, (f) generating a second table using the disc information read out at step (c) which is used to convert the second logical address data into a physical address data of the disc-shaped recording medium, (g) using the first table to convert the first logical address data to be accessed into the second logical address data, (h) using the second table to convert the second logical address data into the physical address data and (i) accessing the disc-shaped recording medium using the physical address data generated at step (h).
摘要翻译：一种访问盘形记录介质的方法，包括以下步骤：（a）在包括有缺陷扇区的第一逻辑地址数据的盘形记录介质上记录缺陷信息，第一逻辑地址数据是分配给包括有效扇区和缺陷扇区的所有扇区，（b）在盘状记录介质的预定物理位置上记录包含表示物理数据结构的缺陷信息的记录物理位置信息的盘信息，（c）读出盘来自盘状记录介质的信息，（d）使用包含在步骤（c）中读出的盘信息中的物理记录位置信息读出缺陷信息，（e）使用所使用的缺陷信息产生第一表将第一逻辑地址数据转换为第二逻辑地址数据，第二逻辑地址数据是地址数据分配（f）使用用于将第二逻辑地址数据转换为盘形记录介质的物理地址数据的步骤（c）读出的盘信息产生第二表，（g ）使用第一表将第一逻辑地址数据转换成第二逻辑地址数据，（h）使用第二表将第二逻辑地址数据转换成物理地址数据，以及（i）访问盘形记录介质，使用在步骤（h）生成的物理地址数据。

6. 发明授权

US07630303B2 Communication control method and network system 失效
标题翻译：通信控制方法和网络系统
公开(公告)号：US07630303B2
公开(公告)日：2009-12-08
申请号：US10266473
申请日：2002-10-08
申请人： Shinya Masunaga , Kuniyuki Manaka , Yoshikatsu Niwa
发明人： Shinya Masunaga , Kuniyuki Manaka , Yoshikatsu Niwa
IPC分类号： H04L1/00 , H04J3/18 , G06F15/16
CPC分类号： H04L47/30 , H04L47/10 , H04L47/11 , H04L47/12 , H04L47/2408 , H04L47/2416
摘要： Disclosed herein are a communication control method and a network system. When a total band of a priority flow and a best-effort flow in any one of switches SW1 and SW2 and hosts H1 to H3 connected to a network exceeds a predetermined value, priority control is executed to make the priority flow take precedence of the best-effort flow and flow control is executed to limit the band of the best-effort flow. Thus, priority data such as sounds and moving pictures can be transmitted in a high-quality and reliable transmission without turbulence. As a result, it is possible to provide a communication control method and a network system offering high-quality communications even if transmitted data includes sounds and/or moving pictures.
摘要翻译：这里公开了通信控制方法和网络系统。当连接到网络的交换机SW1和SW2以及主机H1至H3中的任何一个中的优先级流程和尽力而为流量的总带宽超过预定值时，执行优先级控制使得优先级流优先于最优执行流量和流量控制以限制尽力而为流动的频带。因此，优先数据如声音和运动图像可以以高质量可靠的传输而无湍流地传输。结果，即使发送的数据包括声音和/或运动图像，也可以提供提供高质量通信的通信控制方法和网络系统。

7. 发明授权

US08255555B2 Reception apparatus and method for reducing time delay in channel switching 失效
标题翻译：用于减少信道切换时延的接收装置和方法
公开(公告)号：US08255555B2
公开(公告)日：2012-08-28
申请号：US12575194
申请日：2009-10-07
申请人： Tomoaki Takemura , Yoshikatsu Niwa , Shinya Masunaga , Tsunemitsu Takase , Junichi Otani
发明人： Tomoaki Takemura , Yoshikatsu Niwa , Shinya Masunaga , Tsunemitsu Takase , Junichi Otani
IPC分类号： G06F15/16
CPC分类号： H04N21/64322 , H04N21/4331 , H04N21/4384 , H04N21/44222 , H04N21/6125 , H04N21/6405
摘要： A reception apparatus receiving a stream delivered by multicast through a network includes: a stream receiving a stream of a first channel as a viewing stream and one or more streams of second channels as viewing candidate streams; a buffer section storing the streams of the channels received by the stream reception section; a reproduction processing section performing processing for viewing the stream stored as the viewing stream in the buffer section; and a channel causing, when an instruction to switch over, as a viewing target, from the first channel to any one of the second channels of the streams being received as the viewing candidate streams is input, the reproduction processing section to process as the viewing stream the stream corresponding to the second channel and stored in the buffer section, and the stream to receive the stream as the viewing stream.
摘要翻译：接收通过网络通过多播传送的流的接收装置包括：接收作为观看流的第一频道的流和作为观看候选流的一个或多个第二频道的流的流; 存储由流接收部接收的信道的流的缓冲部; 再现处理部分执行用于观看在缓冲部分中作为观看流存储的流的处理; 以及当作为观看候选流被输入作为观看目标的切换指示从第一通道传送到正在接收的流的第二通道中的任何一个的通道，所述再现处理部分作为观看进行处理流对应于第二信道的流并存储在缓冲区中，流接收流作为观看流。

8. 发明授权

US06310851B1 Frequency demodulating circuit, optical disk apparatus thereof and preformating device 失效
标题翻译：频率解调电路，其光盘装置和预处理装置
公开(公告)号：US06310851B1
公开(公告)日：2001-10-30
申请号：US09660889
申请日：2000-09-13
申请人： Minoru Tobita , Susumu Tosaka , Yoshikatsu Niwa , Shinichi Nakao , Goro Fujita
发明人： Minoru Tobita , Susumu Tosaka , Yoshikatsu Niwa , Shinichi Nakao , Goro Fujita
IPC分类号： G11B700
CPC分类号： G11B27/24 , G11B7/007 , G11B7/00718 , G11B7/00745 , G11B7/128 , G11B7/24082 , G11B7/26 , G11B7/261 , G11B11/10565 , G11B11/10578 , G11B11/10582 , G11B20/1403 , G11B27/19 , G11B2220/2525
摘要： A frequency demodulating circuit, optical disk and preformatting device having a decoder for decoding a bit “0” and a bit “1” for reproducing address information recorded as a wobble groove. The decoder determines whether an output is a digital “1” or a digital “0” so that even if the waveform of the reproduced signal is erratic or unstable due to a defect, a digital “1” or a digital “0” can be correctly identified by utilizing window pulses. Changes in the slop of a zero cross point of the groove wobble are prevented from occurring by making the groove wobble amplitude fluctuate according to the signal frequency modulation which also greatly reduces jitter and allowing satisfactory acquisition of the address information. Oversampling clock signals of biphase bits are generated by frequency division of data clock signals. Since demodulation is accomplished with a single phase lock loop circuit in the data system using clock signals for both the data and the addresses, the configuration can be made extremely simple. By means of polarity of the playback signal mark having phase information, it is determined whether the beam that scans the optical disk is above the land or above the groove. The marks containing phase information are formed on the base disk surface solely by the on and off control of the paired cutting beams with respect to the direction of the time axis, for easy preformatting of a mark to permit acquiring (phase) position information with high precision.
摘要翻译：一种频率解调电路，光盘和预格式化装置，其具有用于解码位“0”的解码器和用于再现记录为摆动槽的地址信息的位“1”。解码器确定输出是数字“1”还是数字“0”，使得即使再现信号的波形由于缺陷而不稳定或不稳定，数字“1”或数字“0”可以是通过利用窗口脉冲正确识别。通过根据信号频率调制使槽摆动幅度波动，防止槽摆动的零交叉点的变化发生，这也大大降低了抖动，并且令人满意地获取了地址信息。双相位的过采样时钟信号由数据时钟信号的分频产生。由于使用数据系统和地址的时钟信号的数据系统中的单相锁定环电路来实现解调，所以可以使结构非常简单。通过具有相位信息的重放信号标记的极性，确定扫描光盘的光束是否在凹槽之上或之上。包含相位信息的标记仅通过相对于时间轴的方向的成对的切割光束的开和关控制形成在基盘表面上，以便容易地预格式化标记以允许获取（相位）位置信息精确。

9. 发明授权

US07870281B2 Content playback device, content playback method, computer-readable storage medium, and content playback system 有权
标题翻译：内容再现装置，内容回放方法，计算机可读取存储介质和内容再现系统
公开(公告)号：US07870281B2
公开(公告)日：2011-01-11
申请号：US12187485
申请日：2008-08-07
申请人： Shinya Masunaga , Yoshikatsu Niwa , Tsunemitsu Takase , Tomoaki Takemura , Junichi Otani
发明人： Shinya Masunaga , Yoshikatsu Niwa , Tsunemitsu Takase , Tomoaki Takemura , Junichi Otani
IPC分类号： G06F15/16
CPC分类号： H04N9/8042 , G11B27/105 , H04N5/782 , H04N7/17336 , H04N21/4333 , H04N21/47202 , H04N21/6587 , H04N21/8455
摘要： A content playback device has a processor, a memory, a data acquisition portion that acquires streaming data for content from a data transmission device, and a storage portion that stores the acquired streaming data in a storage medium. The content playback device also has a playback portion that plays back the content based on the stored streaming data, a playback control portion that causes the playback portion to halt playback of the content in response to a halt playback request, and an acquisition control portion. The acquisition control portion causes the data acquisition portion to stop acquisition of the streaming data in response to the halt playback request, and causes the data acquisition portion to restart acquisition of the streaming data in response to a resume playback request. The storage portion stores, in the storage medium, the streaming data acquired in response to the resume playback request, starting from a position at which acquisition of the streaming data was stopped.
摘要翻译：内容回放装置具有处理器，存储器，从数据发送装置获取内容的流式数据的数据取得部，以及将获取的流式数据存储在存储介质中的存储部。内容再现装置还具有基于所存储的流式数据播放内容的重放部分，响应于停止重放请求使重放部分停止内容的重放的重放控制部分和获取控制部分。采集控制部分使得数据采集部分响应于停止重放请求停止对流数据的采集，并且响应于恢复重放请求使得数据获取部分重新开始流数据的采集。存储部在存储介质中存储响应于恢复重放请求而获取的流数据，从流动数据的获取停止的位置开始。

10. 发明申请

US20100100635A1 Reception Apparatus, Content Reception Method, and Program 审中-公开
标题翻译：接收设备，内容接收方法和程序
公开(公告)号：US20100100635A1
公开(公告)日：2010-04-22
申请号：US12579048
申请日：2009-10-14
申请人： Tomoaki TAKEMURA , Shinya Masunaga , Yoshikatsu Niwa
发明人： Tomoaki TAKEMURA , Shinya Masunaga , Yoshikatsu Niwa
IPC分类号： G06F15/16
CPC分类号： H04L67/06 , H04L65/4084 , H04L67/322 , H04N7/173 , H04N21/4334 , H04N21/44004 , H04N21/44209 , H04N21/4508 , H04N21/458 , H04N21/4758 , H04N21/4782
摘要： A reception apparatus includes a download section, a storage section, a judgment section, and a presentation section. The download section downloads a content via a network. The storage section stores the content being downloaded. The judgment section judges, based on a transmission rate of the content being downloaded and a standard reproduction rate of the content, whether the content can be reproduced continuously. The presentation section presents a result of the judgment to a user.
摘要翻译：接收装置包括下载部，存储部，判断部，呈现部。下载部分通过网络下载内容。存储部分存储正在下载的内容。判断部基于正在下载的内容的传输速度和内容的标准再现速率来判断内容是否可以连续再现。呈现部分向用户呈现判断结果。

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