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1. 发明授权

EP0469931B1 Magnetic recording and reproduction apparatus for data processing unit and magnetic tape for use in such apparatus 失效
标题翻译：磁记录和再现装置的数据处理装置和磁带为
公开(公告)号：EP0469931B1
公开(公告)日：1996-03-20
申请号：EP91307146.0
申请日：1991-08-02
申请人： SHARP KABUSHIKI KAISHA
发明人： Ishikawa, Toshio , Terashima, Shigeo , Sasada, Taizo
IPC分类号： G11B23/18
CPC分类号： G11B15/087 , G11B5/0083 , G11B15/005 , G11B20/10 , G11B20/1202 , G11B27/107 , G11B27/3027 , G11B27/3063 , G11B2020/10592 , G11B2020/10888 , G11B2220/90 , G11B2220/913

2. 发明授权

EP0344754B1 Video tape recorder 失效
标题翻译： VCR。
公开(公告)号：EP0344754B1
公开(公告)日：1995-08-02
申请号：EP89109854.3
申请日：1989-05-31
申请人： SHARP KABUSHIKI KAISHA
发明人： Ikushima, Yoshiyuki , Sasada, Taizo , Tabuchi, Toshiaki
IPC分类号： G11B5/008 , G11B5/53
CPC分类号： H04N5/78266 , G11B5/0086

3. 发明公开

EP0300826A2 Digital data detector 失效
标题翻译： Digitaler Datendetektor。
公开(公告)号：EP0300826A2
公开(公告)日：1989-01-25
申请号：EP88306788.6
申请日：1988-07-22
申请人： SHARP KABUSHIKI KAISHA
发明人： Takeuchi, Hitoshi , Sasada, Taizo
IPC分类号： G11B20/10
CPC分类号： G11B20/10203 , G11B20/10009 , G11B20/10037 , G11B20/10527
摘要： A digital modulation signal is sampled by an A/D converter (1) in a predetermined cycle. A phase interval P between a zero level crossing and the current sampling point using sampling data S i+1 at the current sampling point and sampling data S i at a sampling point which is located one point before the current sampling point. A phase P i+1 of the current sampling point is found using the phase interval P, a phase P i of the sampling point which is located one point before the current sampling point, a phase P i-1 of a sampling point which is located two points before the current sampling point and a phase P i-2 of a sampling point which is located three points before the current sampling point. A clock signal is detected using the phases P i+1 and P i . Digital data is detected using the phase interval P, the phase P i+1 and the sampling data S i at the sampling point which is located one point before the current sampling point.
摘要翻译：数字调制信号由A / D转换器（1）以预定的周期取样。使用当前采样点的采样数据Si + 1和位于当前采样点前一点的采样点的采样数据Si，在零电平交叉点与当前采样点之间的相位间隔P。使用相位间隔P，位于当前采样点前一点的采样点的相位Pi，位于两点的采样点的相位Pi-1，找出当前采样点的相位Pi + 1 在当前采样点之前的三点的采样点的相位Pi-2之前。使用相位Pi + 1和Pi检测时钟信号。使用位于当前采样点之前一点的采样点处的相位间隔P，相位Pi + 1和采样数据Si来检测数字数据。

4. 发明授权

EP0469931B2 Magnetic recording and reproduction apparatus for data processing unit and magnetic tape for use in such apparatus 失效
标题翻译：磁记录和再现装置的数据处理装置和磁带为
公开(公告)号：EP0469931B2
公开(公告)日：1999-02-03
申请号：EP91307146.0
申请日：1991-08-02
申请人： SHARP KABUSHIKI KAISHA
发明人： Ishikawa, Toshio , Terashima, Shigeo , Sasada, Taizo
IPC分类号： G11B23/18
CPC分类号： G11B15/087 , G11B5/0083 , G11B15/005 , G11B20/10 , G11B20/1202 , G11B27/107 , G11B27/3027 , G11B27/3063 , G11B2020/10592 , G11B2020/10888 , G11B2220/90 , G11B2220/913

5. 发明授权

EP0196034B1 Apparatus for recording and reproducing digital signal 失效
标题翻译：记录和复制数字信号的装置
公开(公告)号：EP0196034B1
公开(公告)日：1990-05-23
申请号：EP86103950.1
申请日：1986-03-22
申请人： SHARP KABUSHIKI KAISHA
发明人： Yasuda, Syuhei , II, Hiroshi , Sasada, Taizo
IPC分类号： G11B20/10 , G11B5/008 , G11B20/22
CPC分类号： G11B20/22 , G11B5/00817 , G11B20/10009 , G11B20/10527 , H04L7/0334

6. 发明授权

EP0300826B1 Digital data detector 失效
标题翻译：数字数据检测器
公开(公告)号：EP0300826B1
公开(公告)日：1993-07-07
申请号：EP88306788.6
申请日：1988-07-22
申请人： SHARP KABUSHIKI KAISHA
发明人： Takeuchi, Hitoshi , Sasada, Taizo
IPC分类号： G11B20/10
CPC分类号： G11B20/10203 , G11B20/10009 , G11B20/10037 , G11B20/10527

7. 发明公开

EP0344754A3 Video tape recorder 失效
标题翻译：记录视频信号记录和/或复制设备的记录头安排
公开(公告)号：EP0344754A3
公开(公告)日：1991-03-13
申请号：EP89109854.3
申请日：1989-05-31
申请人： SHARP KABUSHIKI KAISHA
发明人： Ikushima, Yoshiyuki , Sasada, Taizo , Tabuchi, Toshiaki
IPC分类号： G11B5/008 , G11B5/53
CPC分类号： H04N5/78266 , G11B5/0086
摘要： A recording head arrangement employed in a video signal recording and/or reproducing device in which a video tape is helically wound on a drum carrying recording heads for recording and/or reproducing video signal which is so divided for representing upper and lower half images on a screen. The recording head arrangement includes first and second heads (3, 4) mounted on the drum adjacent each other. The first and second heads (3, 4) have the same azimuth angle which is inclined in a first direction with respect to a direction perpendicular to the head advancing direction. Also provided are third and fourth heads (5, 6) mounted on the drum 180 degrees spaced from the first and second heads (3, 4), respsectively. The third and fourth heads (5, 6) have the same azimuth angle which is inclined in a second direction, opposite to the first direction, with respect to the direction perpendicular to the head advancing direction. Thus, the first and second heads (3, 4) are scanned to form first and second tracks spaced approximately one track width for recording and/or reproducing the first half image, and the third and fourth heads (5, 6) are scanning to form third and fourth tracks spaced approximately one track width and in an interlaced manner with the first and second tracks for recording and/or reproducing the second half image.

8. 发明公开

EP0344754A2 Video tape recorder 失效
标题翻译： Aufnahme-Kopfanordnungfüreine Videosignal-Aufzeichnungs- oder Wiedergabevorrichtung。
公开(公告)号：EP0344754A2
公开(公告)日：1989-12-06
申请号：EP89109854.3
申请日：1989-05-31
申请人： SHARP KABUSHIKI KAISHA
发明人： Ikushima, Yoshiyuki , Sasada, Taizo , Tabuchi, Toshiaki
IPC分类号： G11B5/008 , G11B5/53
CPC分类号： H04N5/78266 , G11B5/0086
摘要： A recording head arrangement employed in a video signal recording and/or reproducing device in which a video tape is helically wound on a drum carrying recording heads for recording and/or reproducing video signal which is so divided for representing upper and lower half images on a screen. The recording head arrangement includes first and second heads (3, 4) mounted on the drum adjacent each other. The first and second heads (3, 4) have the same azimuth angle which is inclined in a first direction with respect to a direction perpendicular to the head advancing direction. Also provided are third and fourth heads (5, 6) mounted on the drum 180 degrees spaced from the first and second heads (3, 4), respsectively. The third and fourth heads (5, 6) have the same azimuth angle which is inclined in a second direction, opposite to the first direction, with respect to the direction perpendicular to the head advancing direction. Thus, the first and second heads (3, 4) are scanned to form first and second tracks spaced approximately one track width for recording and/or reproducing the first half image, and the third and fourth heads (5, 6) are scanning to form third and fourth tracks spaced approximately one track width and in an interlaced manner with the first and second tracks for recording and/or reproducing the second half image.
摘要翻译：一种在视频信号记录和/或再现装置中采用的记录头装置，其中录像带被螺旋地缠绕在承载用于记录和/或再现视频信号的记录头的鼓上，该视频信号被划分以表示上下半图像屏幕。记录头装置包括彼此相邻安装在滚筒上的第一和第二头部（3,4）。第一和第二磁头（3,4）具有相对于垂直于磁头前进方向的方向在第一方向上倾斜的相同的方位角。还提供了安装在与第一和第二头部（3,4）间隔开180度的滚筒上的第三和第四头部（5,6）。第三和第四头部（5,6）具有相对于垂直于头前进方向的方向在与第一方向相反的第二方向上倾斜的相同的方位角。因此，第一和第二磁头（3,4）被扫描以形成间隔大约一个磁道宽度的第一和第二磁道，用于记录和/或再现第一半图像，并且第三和第四磁头（5,6）扫描到形成间隔大约一个轨道宽度的第三和第四轨道，并且以与第一和第二轨道交错的方式隔开以记录和/或再现第二半图像。

9. 发明公开

EP0196034A3 Apparatus for recording and reproducing digital signal 失效
标题翻译：记录和复制数字信号的装置
公开(公告)号：EP0196034A3
公开(公告)日：1987-08-19
申请号：EP86103950
申请日：1986-03-22
申请人： SHARP KABUSHIKI KAISHA
发明人： Yasuda, Syuhei , II, Hiroshi , Sasada, Taizo
IPC分类号： G11B20/10 , G11B05/008 , G11B20/22
CPC分类号： G11B20/22 , G11B5/00817 , G11B20/10009 , G11B20/10527 , H04L7/0334
摘要： 57 An apparatus for recording and reproducing digital signal comprises detector (ZC, PD, 8) for detecting and producing a phase data (P) of a sampled point, a first comparator (16) for comparing a first phase data (P i+1 ) at one sampling point and a second phase data (P;) at one previous sampling point, a second comparator (17) for comparing a predetermined value (N/2) with a phase difference (P-P i ) between the second phase data and newly detected phase data, a condition detecting means (G1, G3, G4), utilizing the results of the first and second comparators, for detecting whether or not two reference phases (pi's) are contained, or no reference phase (pi) is contained, between the first and second sampling points, and for producing an insert signal (P I ) when two reference phases are detected, and producing a delete signal (P D ) when no reference phase is detected, and sampling pulse generating means (f s , 2f s G5, G7, G8) for generating one sampling pulse when neither of the insert signal and delete signal is produced, two sampling pulses when the insert signal is produced; and no sampling pulse when the delete signal is produced.

10. 发明公开

EP0469931A1 Magnetic recording and reproduction apparatus for data processing unit and magnetic tape for use in such apparatus 失效
标题翻译： Magnetaufzeichnungs- undWiedergabegerätfüreinDatenverarbeitungsgerätund Magnetbanddafür。
公开(公告)号：EP0469931A1
公开(公告)日：1992-02-05
申请号：EP91307146.0
申请日：1991-08-02
申请人： SHARP KABUSHIKI KAISHA
发明人： Ishikawa, Toshio , Terashima, Shigeo , Sasada, Taizo
IPC分类号： G11B23/18
CPC分类号： G11B15/087 , G11B5/0083 , G11B15/005 , G11B20/10 , G11B20/1202 , G11B27/107 , G11B27/3027 , G11B27/3063 , G11B2020/10592 , G11B2020/10888 , G11B2220/90 , G11B2220/913
摘要： Disclosed are a magnetic recording and reproduction apparatus for a data processing unit, which includes a plurality of magnetic heads formed integrally by a thin-film forming technology, and a magnetic tape. A magnetic tape (3) has a plurality of recording tracks (1-1 to 1-n) corresponding to a plurality of independent data. The recording tracks are arranged in parallel to a moving direction of the magnetic tape and share the same starting position (Y). A plurality of magnetic heads (H1-Hn) are arranged in parallel to a width direction of the magnetic tape to correspond to the recording tracks in a one-to-one correspondence, and are fixed at the starting position of the recording tracks. The magnetic tape is moved in a direction in which the starting position is away from the magnetic heads for data recording onto the magnetic tape and for data reproduction from the magnetic tape. Further, the magnetic tape is controlled to automatically move in an opposite direction to the previous direction until the starting position reaches the position of the magnetic heads in response to each of the end of the data recording and the end of the data reproduction. Thus, the starting positio of the recording tracks is absolutely at the position of magnetic heads upon the start of data recording and the start of data reproduction.
摘要翻译：公开了一种用于数据处理单元的磁记录和再现装置，其包括通过薄膜形成技术一体地形成的多个磁头和磁带。磁带（3）具有对应于多个独立数据的多个记录磁道（1-1至1-n）。记录轨道与磁带的移动方向平行地布置，并且共享相同的起始位置（Y）。多个磁头（H1-Hn）与磁带的宽度方向平行配置，以一一对应的方式对应于记录磁道，并固定在记录磁道的起始位置。磁带沿开始位置离开磁头的方向移动，用于数据记录到磁带上，并从磁带进行数据再现。此外，磁带被控制成在与先前方向相反的方向上自动移动，直到起始位置响应于数据记录的每个结束和数据再现的结束而到达磁头的位置。因此，在开始数据记录和开始数据再现时，记录磁道的起始位置绝对位于磁头的位置。

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