专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明授权

US06275175B1 Device for encoding/decoding n-bit source words into corresponding m-bit channel words, and vice versa 失效
标题翻译：将n位源字编码/解码为相应的m位通道字的装置，反之亦然
公开(公告)号：US06275175B1
公开(公告)日：2001-08-14
申请号：US09702914
申请日：2000-10-27
申请人： Josephus A. H. M. Kahlman , Toshiyuki Nakagawa , Yoshihide Shimpuku , Tatsuya Narahara , Kousuke Nakamura
发明人： Josephus A. H. M. Kahlman , Toshiyuki Nakagawa , Yoshihide Shimpuku , Tatsuya Narahara , Kousuke Nakamura
IPC分类号： H03M700
CPC分类号： G11B20/1426 , H03M5/145
摘要： A device is disclosed for encoding a stream of databits of a binary source signal (S) into a stream of databits of a binary channel signal (C), wherein the bitstream of the source signal is divided into n-bit source words (x1, x2), which device comprises converting means (CM) adapted to convert said source words into corresponding m-bit channel words (y1, y2, y3). The converting means (CM) are further adapted to convert n-bit source words into corresponding m-bit channel words, such that the conversion for each n-bit source word is parity preserving (table I) (FIG. 1). The relations hold that m>n≧1, p≧1, and that p can vary. Preferably, m=n+1. The device is adapted to convert the 8-bit bit sequence ‘00010001’ in the source signal into the 12-bit bitsequence ‘100010010010’ and to convert the 8-bit bitsequence ‘10010001’ into the 12-bit bitsequence ‘000010010010’, in order to limit the repeated minimum transition runlength in the channel signal. Also other 8-bit sequences require a specific encoding into 12-bit bitsequences in order to limit the k-constraint of the channel signal to 7. Further, a decoding device is disclosed for decoding the channel signal obtained by means of the encoding device.
摘要翻译：公开了一种用于将二进制源信号（S）的数据位流编码成二进制信道信号（C）的数据位流的装置，其中源信号的比特流被划分为n位源字（x1， x2），该装置包括适于将所述源字转换成对应的m位通道字（y1，y2，y3）的转换装置（CM）。转换装置（CM）还适于将n位源字转换成相应的m位通道字，使得每个n位源字的转换是奇偶校验（表1）（图1）。关系认定m> n> = 1，p> = 1，p可以变化。优选地，m = n + 1。该装置适于将源信号中的8位比特序列“00010001”转换为12比特比特序列“100010010010”，并将8比特比特序列“10010001”转换为12 比特序列“000010010010”，以便限制信道信号中重复的最小过渡游程长度。而且其他8位序列还需要对12位比特序列进行特定编码，以将信道信号的k约束限制为7.此外，公开了一种解码装置，用于对通过编码装置获得的信道信号进行解码。

62. 发明授权

US5559766A Rotary drum tape recording apparatus with controlling optical recording tracks using stored results of scanning of reference tracks 失效
标题翻译：旋转鼓带记录装置，具有使用存储的参考轨道扫描结果控制光记录轨道
公开(公告)号：US5559766A
公开(公告)日：1996-09-24
申请号：US500028
申请日：1995-07-10
申请人： Takashi Nakao , Kiyoshi Ohsato , Yoshiteru Kamatani , Tatsuya Narahara , Tadashi Ozue
发明人： Takashi Nakao , Kiyoshi Ohsato , Yoshiteru Kamatani , Tatsuya Narahara , Tadashi Ozue
IPC分类号： G11B7/09 , G11B7/003 , G11B7/0033
CPC分类号： G11B7/0031 , G11B7/0901 , G11B7/0033
摘要： An optical recording method and an optical recording apparatus enable recording information on recording tracks substantially corresponding to ideal reference tracks, on an optical recording medium without preformatted tracks. The optical recording medium is scanned by a rotating optical scanning system using a scanning light beam emitted by an external light source to record information on the optical recording medium. Prior to recording the information on the optical recording medium, information recorded on a reference track recording medium provided with ideal reference tracks is reproduced in a tracking control mode to acquire tracking control data and the tracking control data is stored in a waveform memory. In recording information on the optical recording medium, the rotating optical scanning system is controlled on the basis of the previously stored tracking control data so that the scanning spot traces recording tracks corresponding to the ideal reference tracks.
摘要翻译：光学记录方法和光学记录装置使得能够在没有预格式化轨道的光学记录介质上将基本上对应于理想基准轨道的记录轨道上的信息进行记录。光记录介质通过使用由外部光源发射的扫描光束的旋转光学扫描系统进行扫描，以在光学记录介质上记录信息。在光记录介质上记录信息之前，以跟踪控制模式再现记录在具有理想基准轨道的基准轨道记录介质上的信息，以获取跟踪控制数据，并且将跟踪控制数据存储在波形存储器中。在光记录介质上记录信息时，基于先前存储的跟踪控制数据来控制旋转光扫描系统，使得扫描点跟踪对应于理想参考轨道的记录道。

63. 发明授权

US5465241A Optical tape recording and reproducing apparatus 失效
标题翻译：光带记录和再现装置
公开(公告)号：US5465241A
公开(公告)日：1995-11-07
申请号：US264625
申请日：1994-06-23
申请人： Tatsuya Narahara
发明人： Tatsuya Narahara
IPC分类号： G11B7/00 , G11B7/003 , G11B7/09 , G11B7/12
CPC分类号： G11B7/0031 , G11B7/0908 , G11B7/12
摘要： An optical tape recording and reproducing apparatus wherein dynamic tracking can be started at a position at or near the center of a track to reduce the settling time upon leading-in of tracking and increase the recording and/or reproducing range and the operating range of a tracking actuator is kept small to achieve save of power and reduction in size of the actuator and besides a sudden variation of the feeding speed of an optical tape is eliminated to minimize the variation of the tension of the optical tape thereby to minimize possible damage to the optical tape. The position of a spot of a laser beam with respect to a object track of the optical tape is controlled in response to a displacement of the position of the spot of the laser beam at a predetermined sampling point of the object track of the optical tape from the center line of the object track and another displacement of the tracking actuator, which effects tracking of the laser beam, from its central position.
摘要翻译：一种光带记录和再现装置，其中可以在轨道中心处或附近的位置处开始动态跟踪以减少在跟踪时引入的建立时间，并且增加记录和/或再现的范围和操作范围跟踪致动器保持较小以实现功率的节省和致动器的尺寸的减小，并且消除了光带的进给速度的突然变化，以最小化光学胶带的张力变化，从而最小化对光带。激光束相对于光带的物体轨道的位置的位置响应于在光带的物体轨道的预定采样点处的激光束的位置的位移而被控制，物体轨迹的中心线和跟踪致动器的另一个位移，其实现激光束的跟踪，其从其中心位置。

64. 发明授权

US5155720A Servo control circuit for image rotator 失效
标题翻译：图像转台伺服控制电路
公开(公告)号：US5155720A
公开(公告)日：1992-10-13
申请号：US597151
申请日：1990-10-15
申请人： Tatsuya Narahara , Yoshiteru Kamatani , Takashi Nakao , Hiroshi Miyoshi
发明人： Tatsuya Narahara , Yoshiteru Kamatani , Takashi Nakao , Hiroshi Miyoshi
IPC分类号： G11B7/00 , G11B7/003 , G11B7/08 , G11B7/09 , G11B7/12 , G11B7/135
CPC分类号： G11B7/0031 , G11B7/08 , G11B7/12 , G11B7/1359
摘要： A servo control circuit for an image rotator used in an optical tape recording apparatus that employs a rotary tape drum. Pairs of pulse generators and frequency generators are provided on the image rotator and on the tape drum, respectively. Initially, the pulse generators are used for servo control and, upon detecting a phase lock, servo control is subsequently switched over to be controlled by the frequency generators.

65. 发明授权

US5063555A Rotary optical head 失效
标题翻译：旋转光头
公开(公告)号：US5063555A
公开(公告)日：1991-11-05
申请号：US618116
申请日：1990-11-26
申请人： Hiroshi Miyoshi , Yoshiteru Kamatani , Tadashi Ozue , Tatsuya Narahara , Kiyoshi Ohsato
发明人： Hiroshi Miyoshi , Yoshiteru Kamatani , Tadashi Ozue , Tatsuya Narahara , Kiyoshi Ohsato
IPC分类号： G11B7/003 , G11B7/085 , G11B7/09 , G11B7/135 , G11B11/105
CPC分类号： G11B7/1359 , G11B11/10532 , G11B11/10576 , G11B7/0031 , G11B7/08564
摘要： A rotary optical head apparatus comprises a first rotary member carrying an objective lens and a second rotary member carrying an image rotator. The two rotary members are supported for rotation by means of a single common support shaft so that the axes of rotation of the two rotary members coincide with each other with a high degree of accuracy. Consequently, the linearity of a scanning line of a beam spot which is scanned on an optical magnetic tape is ensured with a high degree of accuracy.

66. 发明申请

US20120169725A1 HEAD-MOUNTED DISPLAY 有权
标题翻译：头安装显示
公开(公告)号：US20120169725A1
公开(公告)日：2012-07-05
申请号：US13334460
申请日：2011-12-22
申请人： Masayuki Shimizu , Tatsuya Narahara
发明人： Masayuki Shimizu , Tatsuya Narahara
IPC分类号： G06T15/00
CPC分类号： G02B27/0172 , G02B27/017 , G02B2027/0123 , G02B2027/0127 , G02B2027/0134
摘要： A head-mounted display includes a left-eye display panel that displays a left-eye image, a left-eye optical system that has an angle of view from 45 to 55 degrees and forms a virtual image of the left-eye image, a right-eye display panel that displays a right-eye image, a right-eye optical system that has an angle of view from 45 to 55 degrees and forms a virtual image of the right-eye image, and a display control unit that controls the screen display of the left-eye display panel and the right-eye display panel.
摘要翻译：头戴式显示器包括显示左眼图像的左眼显示面板，具有45度至55度的视角的左眼光学系统，并形成左眼图像的虚像; 显示右眼图像的右眼显示面板，具有45度至55度的视角并形成右眼图像的虚像的右眼光学系统，以及控制该右眼图像的显示控制单元左眼显示面板和右眼显示面板的屏幕显示。

67. 发明申请

US20090077039A1 Information processing apparatus, and method and program for searching text information candidate 失效
标题翻译：信息处理装置，以及用于搜索文本信息候选的方法和程序
公开(公告)号：US20090077039A1
公开(公告)日：2009-03-19
申请号：US12228425
申请日：2008-08-12
申请人： Tatsuya Narahara
发明人： Tatsuya Narahara
IPC分类号： G06F7/06 , G06F17/30
CPC分类号： G06F3/0236
摘要： An information processing apparatus for searching for a target text information candidate from among text information candidates stored in order to search for and/or input target information, may include a display information generating unit for generating and displaying display information, the display information including only both a first character line of characters extending in a first direction including a character set to be selected, and a second character line of characters related to the first character line, extending in a second direction and intersecting the first character line, out of a two-dimensional matrix of rows and columns of characters arranged for selection, and a shift instruction receiving unit for receiving a shift instruction to shift from the character set to be selected.
摘要翻译：一种用于从为了搜索和/或输入目标信息而存储的文本信息候选中搜索目标文本信息候选的信息处理装置可以包括用于生成和显示显示信息的显示信息生成单元，所述显示信息仅包括两者在包括要选择的字符集的第一方向上延伸的字符的第一字符行和与第一字符行相关的字符的第二字符行在第二方向上延伸并且与第一字符行相交，排列用于选择的字符和列的三维矩阵，以及移位指令接收单元，用于接收从要选择的字符集移位的移位指令。

68. 发明申请

US20090030947A1 Information processing device, information processing method, and program therefor 有权
标题翻译：信息处理装置，信息处理方法及程序
公开(公告)号：US20090030947A1
公开(公告)日：2009-01-29
申请号：US12220385
申请日：2008-07-24
申请人： Shunji Yoshimura , Hiroshige Okamoto , Tatsuya Narahara
发明人： Shunji Yoshimura , Hiroshige Okamoto , Tatsuya Narahara
IPC分类号： G06F7/00
CPC分类号： H04N9/8205 , G11B27/28 , H04N5/782
摘要： An information processing device processes content according to an identified category for the content, the category being identified by first extracting characteristic data from the content. An extractor extracts characteristic data from the content. An identifying component identifies a category for the content on the basis of the characteristic data extracted by the extracting means. An executing component executes set processing of the content using a method according to the category identified by the identifying component. In so doing, the optimal content category for the set processing is identified.
摘要翻译：信息处理设备根据内容的识别类别处理内容，通过首先从内容中提取特征数据来识别类别。提取器从内容中提取特征数据。识别组件基于由提取装置提取的特征数据来识别内容的类别。执行部件使用根据由识别部件识别的类别的方法来执行内容的集合处理。在这样做时，识别用于集合处理的最佳内容类别。

69. 发明授权

US07283592B2 Method and apparatus for modulating and demodulating data into a variable length code and a providing medium for implementing the method 有权
标题翻译：用于将数据调制和解调成可变长度码的方法和装置以及用于实现该方法的提供媒体
公开(公告)号：US07283592B2
公开(公告)日：2007-10-16
申请号：US11525484
申请日：2006-09-22
申请人： Toshiyuki Nakagawa , Yoshihide Shimpuku , Tatsuya Narahara
发明人： Toshiyuki Nakagawa , Yoshihide Shimpuku , Tatsuya Narahara
IPC分类号： H04B14/04
CPC分类号： G11B20/1426 , G11B20/1403 , G11B2020/1287 , G11B2020/1453 , G11B2020/1457 , H03M5/145 , H04L7/0083 , H04L7/041 , H04L7/044
摘要： A digital sync signal added in a modulator to a train of codes having a digital sum value, and detected in a demodulator. The digital sync signal has a pattern that breaks a maximum run and a pattern that preserves a minimum run and a maximum run. The digital sync signal has a bit that is selectively determined to be a “0” or a “1” for controlling the digital sum value of the train of codes. The minimum run is repeated no more than a predetermined number of times irrespective of whether the digital sync signal includes the minimum run.
摘要翻译：将调制器中的数字同步信号加到具有数字和值的代码串中，并在解调器中检测。数字同步信号具有断开最大运行的模式和保持最小运行和最大运行的模式。数字同步信号具有选择性地被确定为“0”或“1”的位，用于控制代码列的数字和值。无论数字同步信号是否包括最小运行，最小运行重复不超过预定次数。

70. 发明授权

US07190726B2 Method and apparatus for modulating and demodulating data into a variable-length code and providing a sync signal to the train of codes 有权
标题翻译：用于将数据调制和解调为可变长度代码并向代码串提供同步信号的方法和装置
公开(公告)号：US07190726B2
公开(公告)日：2007-03-13
申请号：US11088712
申请日：2005-03-24
申请人： Toshiyuki Nakagawa , Yoshihide Shimpuku , Tatsuya Narahara
发明人： Toshiyuki Nakagawa , Yoshihide Shimpuku , Tatsuya Narahara
IPC分类号： H04B14/04
CPC分类号： G11B20/1426 , G11B20/1403 , G11B2020/1287 , G11B2020/1453 , G11B2020/1457 , H03M5/145 , H04L7/0083 , H04L7/041 , H04L7/044
摘要： An apparatus and method for modulating and demodulating data to transmit or record the data on a recoding medium. Data is modulated and demodulated into a variable-length code. The modulated data comprises a sync signal adding means for adding a sync signal to a train of codes after adding a minimum run. The demodulated data comprises a sync signal detecting means for detecting, from a train of codes, a sync signal having a pattern that breaks a maximum run, after detecting a minimum run. A SYNC bit inserting section adds a sync signal to a train of codes, after adding a minimum run, where the sync signal has a pattern that breaks a maximum run.
摘要翻译：一种用于调制和解调数据以在记录介质上传送或记录数据的装置和方法。数据被调制并解调成可变长度码。调制数据包括一个同步信号添加装置，用于在添加最小运行之后将一个同步信号添加到一列代码。解调数据包括同步信号检测装置，用于在检测到最小运行之后，从代码串中检测具有断开最大运行的模式的同步信号。在添加最小运行之后，SYNC位插入部分将同步信号添加到一串代码，其中同步信号具有破坏最大运行的模式。

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