专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5543937A Apparatus for recording and playing back digital data 失效
标题翻译：用于记录和播放数字数据的设备
公开(公告)号：US5543937A
公开(公告)日：1996-08-06
申请号：US235956
申请日：1994-05-02
申请人： Shinji Hamai , Akira Iketani , Chiyoko Matsumi , Tatsuro Juri , Masazumi Yamada , Yasunori Kawakami , Yuuzou Murakami
发明人： Shinji Hamai , Akira Iketani , Chiyoko Matsumi , Tatsuro Juri , Masazumi Yamada , Yasunori Kawakami , Yuuzou Murakami
IPC分类号： H04N5/783 , H04N5/926 , H04N5/93 , H04N5/945
CPC分类号： H04N5/945 , H04N5/9268 , H04N5/93 , H04N5/783
摘要： An apparatus serving as a digital videocassette recorder (VCR) for recording analog video and audio signals as digital signals. The apparatus serves also as a digital data storage drive. The digital VCR and the storage drive share common circuitry and a common magnetic recording medium. This reduces the cost and enhances the efficiency at which tracks are used. The apparatus has a large storage capacity. The apparatus divides input digital data into two parts and performs error correction encoding for each of these two data parts to form sync blocks. These sync blocks are recorded in an audio signal recording area and a video signal recording area, respectively, on the recording medium. Error correction codes used during reading of digital data are the same as those used during recording of video and audio signals. The same track structure and the same sync block structure are used for these two modes of operation.
摘要翻译：一种用作数字录像机（VCR）的装置，用于将模拟视频和音频信号作为数字信号进行记录。该装置还用作数字数据存储驱动器。数字VCR和存储驱动器共享公共电路和公共磁记录介质。这降低了成本并提高了使用轨道的效率。该设备具有大的存储容量。该装置将输入数字数据分成两部分，并对这两个数据部分中的每一个执行纠错编码以形成同步块。这些同步块分别记录在记录介质上的音频信号记录区和视频信号记录区中。在数字数据读取期间使用的纠错码与记录视频和音频信号时使用的纠错码相同。对于这两种操作模式，使用相同的轨道结构和相同的同步块结构。

2. 发明授权

US5655050A Apparatus and method for recording and reproducing digital signal in synchronization blocks 失效
标题翻译：用于在同步块中记录和再现数字信号的装置和方法
公开(公告)号：US5655050A
公开(公告)日：1997-08-05
申请号：US659623
申请日：1996-06-06
申请人： Yoshiki Yamamoto , Tetsuya Mizushima , Akira Iketani , Yasunori Kawakami , Chiyoko Matsumi
发明人： Yoshiki Yamamoto , Tetsuya Mizushima , Akira Iketani , Yasunori Kawakami , Chiyoko Matsumi
IPC分类号： G11B20/12 , G11B5/008 , G11B5/09 , G11B20/18 , G11B27/28 , G11B27/30 , H04N5/926 , H04N5/935 , H04N5/945 , H04N5/76
CPC分类号： G11B20/1208 , G11B27/3027 , H04N5/9261 , H04N5/935 , G11B20/1833 , G11B2220/90 , G11B5/0086 , G11B5/09 , H04N5/945
摘要： A digital signal recording apparatus for recording digital signal in synchronization blocks includes a generator for generating a synchronization pattern for indicating the beginning of each synchronization block, a generator for generating an ID data for indicating the sequence of the synchronization blocks, a generator for generating an ID parity for checking the ID data, a generator for generating additional information signal, which is a track width data, a generator for generating audio and video signals. Above data are applied to a pattern generator for generating track data comprising plural consecutive normal synchronization blocks immediately preceded by two mini-synchronization blocks and immediately followed by one mini-synchronization block. Each mini-synchronization block includes the synchrionization pattern, ID data, ID parity, and additional information signal. Each normal synchronization block includes the synchronization pattern, ID data, ID parity, and audio and video signal.
摘要翻译：用于在同步块中记录数字信号的数字信号记录装置包括用于产生用于指示每个同步块的开始的同步模式的发生器，用于产生用于指示同步块的序列的ID数据的发生器，用于生成用于检查ID数据的ID奇偶校验，用于产生作为轨道宽度数据的附加信息信号的发生器，用于产生音频和视频信号的发生器。上述数据被应用于模式发生器，用于产生包括紧接在两个小型同步块之前的多个连续正常同步块的跟踪数据，并且紧随其后的是一个小型同步块。每个小型同步块包括同步模式，ID数据，ID奇偶校验和附加信息信号。每个正常同步块包括同步模式，ID数据，ID奇偶校验以及音频和视频信号。

3. 发明授权

US5867626A Data transmission apparatus for transmitting digital video and audio data between respective audio visual apparatuses, and method therefor 失效
公开(公告)号：US5867626A
公开(公告)日：1999-02-02
申请号：US884394
申请日：1997-06-27
申请人： Yasunori Kawakami , Tatsuro Juri
发明人： Yasunori Kawakami , Tatsuro Juri
IPC分类号： H04N3/20 , H04N5/765 , H04N5/92 , H04N5/926 , H04N7/24 , H04N7/52 , H04N7/56 , H04N9/00 , H04N11/00 , H04N7/13
CPC分类号： H04N21/4402 , H04N21/4341 , H04N21/43622 , H04N5/765 , H04N5/9208 , H04N5/9268 , H04N7/56
摘要： In a data transmission apparatus for transmitting digital video and audio data, a block forming circuit forms a plurality of data blocks of transmission data composed of at least one of digital video data, digital audio data, and digital auxiliary data related to the digital video data and the digital audio data. Thereafter, a grouping circuit groups a plurality of data blocks outputted from the block forming circuit so as to form transmission group data of one transmission unit block having a time length of approximately one three-hundredth second, and then transmits the transmission group data. Further, a classifying circuit preferably classifies the transmission group data into a plurality of sections, by adding section identification data to each transmission group data.

4. 发明授权

US06421091B1 Data transmission apparatus for transmitting digital video and audio data between respective audio visual apparatuses, and method therefor 失效
标题翻译：用于在各个视听设备之间传输数字视频和音频数据的数据传输设备及其方法
公开(公告)号：US06421091B1
公开(公告)日：2002-07-16
申请号：US08995525
申请日：1997-12-22
申请人： Yasunori Kawakami , Tatsuro Juri
发明人： Yasunori Kawakami , Tatsuro Juri
IPC分类号： H04N320
CPC分类号： H04N21/4402 , H04N5/765 , H04N5/9208 , H04N5/9268 , H04N7/56 , H04N21/4341 , H04N21/43622
摘要： In a data transmission apparatus for transmitting digital video and audio data, a block forming circuit forms a plurality of data blocks of transmission data composed of at least one of digital video data, digital audio data, and digital auxiliary data related to the digital video data and the digital audio data. Thereafter, a grouping circuit groups a plurality of data blocks outputted from the block forming circuit so as to form transmission group data of one transmission unit block having a time length of approximately one three-hundredth second, and then transmits the transmission group data. Further, a classifying circuit preferably classifies the transmission group data into a plurality of sections, by adding section identification data to each transmission group data.
摘要翻译：在用于发送数字视频和音频数据的数据传输装置中，块形成电路形成由数字视频数据，数字音频数据和数字视频数据相关的数字辅助数据中的至少一个组成的传输数据的多个数据块和数字音频数据。此后，分组电路对从块形成电路输出的多个数据块进行分组，以形成具有大约三分之一秒的时间长度的一个发送单位块的发送组数据，然后发送发送组数据。此外，分类电路优选地通过将部分识别数据添加到每个发送组数据来将发送组数据分类成多个部分。

5. 发明授权

US6118930A Apparatus for recording digital signals by controlling frequency characteristics of digital signals utilizing bit extraction and interleaved NRZI modulation 失效
标题翻译：用于通过利用位提取和交错NRZI调制控制数字信号的频率特性来记录数字信号的装置
公开(公告)号：US6118930A
公开(公告)日：2000-09-12
申请号：US5484
申请日：1998-01-12
申请人： Shinji Hamai , Masao Okabe , Yasunori Kawakami
发明人： Shinji Hamai , Masao Okabe , Yasunori Kawakami
IPC分类号： G11B5/008 , G11B5/09 , G11B5/592 , G11B15/46 , G11B20/10 , G11B20/14 , H04N5/926 , H04N5/917 , H04N7/26
CPC分类号： G11B20/1426 , G11B15/463 , G11B20/10009 , G11B5/0086 , G11B5/09 , G11B2020/10537 , G11B5/5921
摘要： When modulating by an interleaved NRZI technique by inserting one bit per every m bits of input data series, the frequency characteristics of bit rows varying by the polarity ("0" or "1") of the bit to be inserted are compared, and the bit row closer to the desired frequency characteristic is selected as the output series, so that recording is effected by controlling the frequency characteristics of the digital signal.
摘要翻译：当通过插入的NRZI技术通过每输入数据串的每m位插入一位进行调制时，比较要被插入的位的极性（“0”或“1”）变化的位行的频率特性，并且选择靠近期望频率特性的位行作为输出序列，从而通过控制数字信号的频率特性来进行记录。

6. 发明授权

US5825567A Apparatus for recording digital signals by controlling frequency characteristics of digital signals utilizing bit extraction and interleaved NRZI molulation 失效
标题翻译：用于通过利用位提取和交织的NRZI摩擦来控制数字信号的频率特性来记录数字信号的装置
公开(公告)号：US5825567A
公开(公告)日：1998-10-20
申请号：US674870
申请日：1996-07-02
申请人： Shinji Hamai , Masao Okabe , Yasunori Kawakami
发明人： Shinji Hamai , Masao Okabe , Yasunori Kawakami
IPC分类号： G11B5/008 , G11B5/09 , G11B5/592 , G11B15/46 , G11B20/10 , G11B20/14
CPC分类号： G11B20/1426 , G11B15/463 , G11B20/10009 , G11B5/0086 , G11B5/09 , G11B2020/10537 , G11B5/5921
摘要： When modulating by an interleaved NRZI technique by inserting one bit per every m bits of input data series, the frequency characteristics of bit rows varying by the polarity ("0" or "1") of the bit to be inserted are compared, and the bit row closer to the desired frequency characteristic is selected as the output series, so that recording is effected by controlling the frequency characteristics of the digital signal.
摘要翻译：当通过插入的NRZI技术通过每输入数据串的每m位插入一位进行调制时，比较要被插入的位的极性（“0”或“1”）变化的位行的频率特性，并且选择靠近期望频率特性的位行作为输出序列，从而通过控制数字信号的频率特性来进行记录。

7. 发明授权

US5579182A Apparatus for recording digital signals superposed with controlled frequency components 失效
标题翻译：用于记录叠加有受控频率分量的数字信号的装置
公开(公告)号：US5579182A
公开(公告)日：1996-11-26
申请号：US453777
申请日：1995-05-30
申请人： Shinji Hamai , Masao Okabe , Yasunori Kawakami
发明人： Shinji Hamai , Masao Okabe , Yasunori Kawakami
IPC分类号： G11B5/008 , G11B5/09 , G11B5/592 , G11B15/46 , G11B20/10 , G11B20/14 , G11B20/16
CPC分类号： G11B20/1426 , G11B15/463 , G11B20/10009 , G11B5/0086 , G11B5/09 , G11B2020/10537 , G11B5/5921
摘要： When modulating by an interleaved NRZI technique by inserting one bit per every m bits of input data series, the frequency characteristics of bit rows varying by the polarity ("0" or "1") of the bit to be inserted are compared and the bit row closer to the desired frequency characteristic is selected as the output series, so that recording is effected by controlling the frequency characteristics of the digital signal.
摘要翻译：当通过插入的NRZI技术通过每输入数据串的每m位插入一位进行调制时，将要插入的位的极性（“0”或“1”）变化的位行的频率特性进行比较，选择靠近期望频率特性的行作为输出序列，使得通过控制数字信号的频率特性来进行记录。

8. 发明授权

US5535208A Data transmission system and method 失效
标题翻译：数据传输系统及方法
公开(公告)号：US5535208A
公开(公告)日：1996-07-09
申请号：US399587
申请日：1995-03-07
申请人： Yasunori Kawakami , Hiroyuki Iitsuka , Takuya Nishimura , Shinji Hamai , Yasuyuki Sahara
发明人： Yasunori Kawakami , Hiroyuki Iitsuka , Takuya Nishimura , Shinji Hamai , Yasuyuki Sahara
IPC分类号： H04L12/18 , H04L12/28 , H04L12/40 , H04L12/403 , H04L12/42 , H04L12/54 , H04L12/64 , H04L12/911 , H04L12/927 , H04L29/06 , H04M3/22 , H04M3/58 , H04M7/00 , H04N7/16 , H04J3/17
CPC分类号： H04L12/40052 , H04L12/1818 , H04L12/2803 , H04L12/40058 , H04L12/40065 , H04L12/40071 , H04L12/40117 , H04L12/403 , H04L12/42 , H04L12/5695 , H04L12/64 , H04L12/6418 , H04L29/06 , H04L29/06027 , H04L47/72 , H04L47/801 , H04L65/4084 , H04L65/80 , H04L69/22 , H04M3/2281 , H04M3/58 , H04N21/43632 , H04N7/163 , H04L2012/2849 , H04M7/00 , H04M7/0006
摘要： The data transmission method employs IEEE P1394 protocol. The data header of the transmitted isochronous packet is added with a node identifier identifying the transmitter node, so that the receiver node can immediately identify the transmitter node, and can thereby request the transmitter node to maintain transmission. A Broadcast channel is a default channel used for isochronous packet transmission, unless a different channel number is otherwise specified. Thus, it is not necessary for the user to coordinate the channel number used by the transmitting and receiver nodes. It is also not necessary for the transmitter node to notify the receiver node, or the receiver node to notify the transmitter node, of the channel number used.
摘要翻译：数据传输方式采用IEEE P1394协议。发送的同步分组的数据报头中加上标识发射机节点的节点标识符，使得接收机节点可以立即识别发射机节点，从而可以请求发射机节点保持传输。广播频道是用于等时包传输的默认频道，除非另有规定，否则不同频道号码。因此，用户不需要协调发送和接收节点使用的信道号。发射机节点也不必通知接收机节点或接收机节点通知发射机节点所使用的信道号。

9. 发明授权

US5455719A Data recording method in which pilot signal period coincides with cumulative bit disparities of insert data 失效
标题翻译：导频信号周期与插入数据的累积比特差异一致的数据记录方法
公开(公告)号：US5455719A
公开(公告)日：1995-10-03
申请号：US205415
申请日：1994-03-03
申请人： Yasunori Kawakami , Akira Iketani , Kei Ichikawa , Makoto Goto , Haruo Isaka
发明人： Yasunori Kawakami , Akira Iketani , Kei Ichikawa , Makoto Goto , Haruo Isaka
IPC分类号： G11B15/46 , G11B20/12 , G11B20/14 , G11B27/30 , G11B5/09 , G11B20/16 , H04N9/89
CPC分类号： G11B15/463 , G11B20/1208 , G11B20/1426 , G11B27/3027 , G11B2220/90
摘要： A pilot signal is superposed and recorded on data at the beginning of each track. The beginning portion of the track is constituted only of codewords having a disparity of each 10 bits which is +2, 0 or -2. Also, the cumulative value of the disparities of every 10 bits may fluctuate in a period coinciding with the period of the pilot signal to be superposed. Therefore, the frequency spectrum in the beginning part of the track has a peak at the frequency of pilot signal, and using this peak as the pilot signal, tracking is controlled during reproduction.
摘要翻译：导频信号被叠加并记录在每个轨道的开始处的数据上。轨道的开始部分仅由具有+ 2,0或-2的每10位差异的码字构成。此外，每10位的差异的累积值可以在与要叠加的导频信号的周期相符的周期中波动。因此，轨道的开始部分的频谱在导频信号的频率处具有峰值，并且使用该峰值作为导频信号，在再现期间控制跟踪。

10. 发明授权

US09136737B2 Stator and resolver 有权
标题翻译：定子和解析器
公开(公告)号：US09136737B2
公开(公告)日：2015-09-15
申请号：US13462369
申请日：2012-05-02
申请人： Motozumi Yura , Yasunori Kawakami
发明人： Motozumi Yura , Yasunori Kawakami
IPC分类号： H01F5/00 , H02K3/28 , H02K24/00
CPC分类号： H02K3/28 , H02K24/00
摘要： Coils are formed into a coil group for a single phase by serially connecting a plurality of coils so that the resulting magnetic flux distribution is a sine wave distribution. The coil group for a single phase is constituted by a plurality of coil sets, formed from two coils that are wound around two adjacent magnetic pole teeth, connected in series. Each coil set includes coils of the two magnetic pole teeth constituting that coil set wound in opposite directions to each other looking from the inside of the stator. An electrical wire extending from an end winding of each coil is turned back so as to run in a direction opposite to an electrical wire connection to a start winding of that coil, and is connected to either a start winding of the next coil or a connection terminal.
摘要翻译：通过串联多个线圈将线圈形成为单相的线圈组，使得所得到的磁通分布为正弦波分布。用于单相的线圈组由多个线圈组构成，其由缠绕在两个相邻磁极齿上的两个线圈组成，该线圈组串联连接。每个线圈组包括构成从定子内部彼此相反缠绕的线圈组的两个磁极齿的线圈。从每个线圈的端部绕组延伸的电线被转回，以便沿与该线圈的起始绕组的电线连接相反的方向延伸，并且连接到下一个线圈的起始绕组或连接终奌站。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式