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1. 发明授权

CN1026530C 旋转磁头式的录制和/或重放设备失效
公开(公告)号：CN1026530C
公开(公告)日：1994-11-09
申请号：CN90110000.5
申请日：1990-12-07
申请人：索尼公司
发明人：田中正人
IPC分类号： G11B15/467 , G11B15/46
CPC分类号： G11B15/185 , G11B15/4676
摘要：一种旋转磁头式录放设备用一公用驱动电动机驱动旋转磁鼓和主导轴。在重放方式下，旋转磁头通过从记录磁迹上拾取出表示现行扫描位置的地址信号来产生扫描位置检测信号，驱动电动机受到控制以使扫描位置检测信号与基准扫描位置信号相匹配。

2. 发明公开

CN1052390A 旋转磁头式的录制和/或重放设备失效
公开(公告)号：CN1052390A
公开(公告)日：1991-06-19
申请号：CN90110000.5
申请日：1990-12-07
申请人：索尼公司
发明人：田中正人
IPC分类号： G11B15/46
CPC分类号： G11B15/185 , G11B15/4676
摘要：一种旋转磁头式录放设备用一公用驱动电动机驱动旋转磁鼓和主导轴。在重放方式下，旋转磁头通过从记录磁迹上拾取出表示现行扫描位置的地址信号来产生扫描位置检测信号，驱动电动机受到控制以使扫描位置检测信号与基准扫描位置信号相匹配。

3. 发明授权

US5050018A Apparatus and method for reading helically recorded tracks and rereading tracks as necessary 失效
标题翻译：根据需要读取螺旋记录的轨道和重新读取轨迹的装置和方法
公开(公告)号：US5050018A
公开(公告)日：1991-09-17
申请号：US511312
申请日：1990-04-19
申请人： Steven P. Georgis , E. Christopher Pisciotta
发明人： Steven P. Georgis , E. Christopher Pisciotta
IPC分类号： G11B5/09 , G11B5/588 , G11B15/18 , G11B15/467 , H04N5/7826
CPC分类号： G11B15/4675 , G11B15/185 , G11B5/588
摘要： A helical drive system (10) reads tracks (18) on a storage medium (12), including tracks which appear as distorted tracks. Each track (18) comprises a plurality of blocks of data, with each block having unique block-identifying information. A track-following servo system (84) causes a read head (16C) to traverse predetermined original azimuthal paths (P0) across the storage medium (12) for reading the blocks recorded along each of the original azimuthal paths (P0). A controller (50) uses the block-identifying information to determine whether any blocks expected to be read during the traversal of the original azimuthal paths (P0) were not read. If expected blocks were not read, the controller (50) repositions the storage medium (12) and directs that the medium (12) be re-read with the head (16C) positionally offset until the expected blocks are actually read. During the re-read attempts, the read head (16C) is positionally offset to traverse sets of modified azimuthal paths (P1, P2, P3, . . . P10 ). Each set of modified azimuthal paths (P2, P3, . . . P10) is offset with respect to the original azimuthal paths (P0) relative to a direction of medium travel (15), thereby providing opportunities to read blocks which would not otherwise be read due to distortion of the tracks (18). In one mode of the invention, the controller (50) dynamically selects from among a plurality of offset degree values based on the historical success rate of the differing offsets in reading blocks which formerly were missing blocks.
摘要翻译：螺旋驱动系统（10）读取存储介质（12）上的轨道（18），包括出现为失真轨道的轨道。每个轨道（18）包括多个数据块，每个块具有唯一的块识别信息。跟踪跟踪伺服系统（84）使得读取头（16C）跨过存储介质（12）穿过预定的原始方位路径（P0），用于读取沿着每个原始方位路径（P0）记录的块。控制器（50）使用块识别信息来确定是否未读取在原始方位路径（P0）遍历期间期望被读取的块。如果预期的块未被读取，则控制器（50）重新定位存储介质（12）并且指示用头部（16C）重新读取介质（12）的位置偏移直到预期的块被实际读取。在重新读取尝试期间，读取头（16C）位置偏移以遍历经修改的方位角路径（P1，P2，P3，...，P10）的集合。每组修改的方位角路径（P2，P3，...，P10）相对于原始方位路径（P0）相对于中等行程（15）的方向偏移，从而提供了读取不另外的块的机会由于轨道（18）的失真而被读取。在本发明的一个模式中，控制器（50）基于以前是丢失块的读取块中的不同偏移量的历史成功率，从多个偏移度值中动态地选择。

4. 发明授权

US5517370A Single motor driver for a helical scan recording/reproducing device 失效
标题翻译：用于螺旋扫描记录/再现装置的单电机驱动器
公开(公告)号：US5517370A
公开(公告)日：1996-05-14
申请号：US371513
申请日：1995-01-11
申请人： Masato Tanaka
发明人： Masato Tanaka
IPC分类号： G11B15/18 , G11B15/467 , G11B27/28
CPC分类号： G11B15/185 , G11B15/4676
摘要： A rotary head tape recording and reproducing apparatus drives a rotary drum and a capstan by a common driving motor. In the reproducing mode, rotary heads generate a scanning position detection signal by picking up an address signal indicating the current scanning position from the recording track, and the driving motor is controlled so as to match the scanning position detection signal with a reference scanning position signal.
摘要翻译：旋转磁带记录和再现装置通过公共驱动电机驱动旋转磁鼓和主导轴。在再现模式中，旋转头通过从记录轨道拾取表示当前扫描位置的地址信号来产生扫描位置检测信号，并且控制驱动电机以使扫描位置检测信号与参考扫描位置信号。

5. 发明授权

US4183067A Helical scan VTR with means for displacing head along track direction 失效
标题翻译：螺旋扫描VTR，具有沿磁道方向移位磁头的装置
公开(公告)号：US4183067A
公开(公告)日：1980-01-08
申请号：US862052
申请日：1977-12-19
申请人： Nobutoshi Kihara , Yoshimi Watanabe
发明人： Nobutoshi Kihara , Yoshimi Watanabe
IPC分类号： G11B5/027 , G11B5/588 , G11B15/14 , G11B15/18 , G11B15/467 , G11B15/473 , H04N5/7826 , G11B5/52 , G11B21/04 , H04N5/78
CPC分类号： H04N5/7826 , G11B15/14 , G11B15/185 , H04N5/78266
摘要： In a VTR for recording and/or reproducing video signals in parallel tracks extending obliquely on a magnetic tape which is wrapped helically on a guide drum, rotary magnetic heads are associated with the guide drum to move in respective circular paths which coincide with the guide drum surface and which are axially spaced apart on the latter so that the heads obliquely traverse respective longitudinal zones substantially equally dividing the width of the magnetic tape. The angular spacing between the heads and the angular extent of the guide drum surface about which the tape is wrapped are selected so that, when the heads are rotated for obliquely traversing the respective tape zones in a repeating cyclic order, the latter has at least one overlapping interval in which two of the heads simultaneously scan oblique tracks in the respective zones. In the reproducing mode of the VTR, signals reproduced by the heads from tracks in the respective zones and being scanned in the repeating cyclic order are sequentially combined and, during each overlapping interval, a comparator senses phase differences between signals reproduced by the two heads which are then simultaneously traversing the respective zones and provides a corresponding compared output. A head shift signal is generated in response to such compared output and is employed, for example, by application to a bimorph leaf mounting at least one of the heads, for displacing such head in a direction along the respective tracks scanned thereby so as to eliminate the phase differences.
摘要翻译：在用于记录和/或再现在平行轨道中的视频信号的VTR中，所述视频信号在螺旋地缠绕在导向鼓上的磁带上倾斜地延伸，旋转磁头与导向鼓相关联，以便在与导向鼓重合的各个圆形路径中移动表面，并且在后者上轴向间隔开，使得头部倾斜地横穿相应的纵向区域，基本上等分地分割磁带的宽度。选择头部之间的角度间隔和引导鼓表面围绕其缠绕的角度范围，使得当头部以重复的循环顺序旋转以斜向穿过各个带区域时，后者具有至少一个其中两个头部同时扫描各个区域中的倾斜轨迹的重叠间隔。在VTR的再现模式中，由各个区域的磁道重放并以重复的循环次序扫描的信号被顺序组合，并且在每个重叠间隔期间，比较器感测由两个磁头再现的信号之间的相位差，然后同时遍历各个区域并提供相应的比较输出。响应于这种比较的输出产生头移动信号，并且例如通过应用于安装至少一个头部的双压电晶片，用于沿着沿其扫描的各个轨道的方向移位这种头部，以消除相位差。

6. 发明公开

EP0431897A3 Rotary head recording and reproducing apparatus 失效
标题翻译：旋转头记录和再现装置
公开(公告)号：EP0431897A3
公开(公告)日：1991-09-18
申请号：EP90313161.3
申请日：1990-12-04
申请人： SONY CORPORATION
发明人： Tanaka, Masato, c/o Patent Division
IPC分类号： G11B15/18 , G11B15/467
CPC分类号： G11B15/185 , G11B15/4676
摘要： A rotary head tape recording and reproducing apparatus drives a rotary drum (3) and a capstan (15) by a common driving motor (2). In the reproducing mode, rotary heads (12A, 12B) generate a scanning position detection signal by picking up an address signal indicating the current scanning position from a recording track, and the driving motor (2) is controlled so as to match the scanning position detection signal with a reference scanning position signal.

7. 发明授权

EP0525108B1 APPARATUS AND METHOD FOR READING HELICALLY RECORDED TRACKS 失效
标题翻译：设备和方法用来读取记录螺丝形轨道。
公开(公告)号：EP0525108B1
公开(公告)日：1995-06-21
申请号：EP91908955.7
申请日：1991-04-19
申请人： EXABYTE CORPORATION
发明人： PISCIOTTA, E., Christopher , GEORGIS, Steven, Philip
IPC分类号： G11B5/588 , G11B5/09 , G11B15/20
CPC分类号： G11B15/4675 , G11B5/588 , G11B15/185
摘要： A helical system (10) reads tracks (18) on a storage medium (12), including distorted tracks. Each track (18) comprises a plurality of blocks, with each block having unique block-identifying information. A servo system (84) causes a head (16C) to traverse predetermined original azimuthal paths (P0) across the medium (12) for reading the blocks recorded along each of the original path (P0). A controller (50) uses the block-identifying information to determine whether any blocks expected to be read during traversal of the original path (P0) were not read. If expected blocks were not read, the controller (50) repositions the medium (12) and directs that the medium (12) be re-read with the head (16C) offset until the expected blocks are actually read. During the re-read attempts, the read head (16C) is positionally offset to traverse modified azimuthal paths (P1, P2, P3, ... P10).

8. 发明授权

EP0431897B1 Rotary head recording and reproducing apparatus 失效
标题翻译：记录，并且具有一个旋转磁头再现装置。
公开(公告)号：EP0431897B1
公开(公告)日：1995-04-12
申请号：EP90313161.3
申请日：1990-12-04
申请人： SONY CORPORATION
发明人： Tanaka, Masato, c/o Patent Division
IPC分类号： G11B15/18 , G11B15/467
CPC分类号： G11B15/185 , G11B15/4676

9. 发明申请

WO1991016704A1 APPARATUS AND METHOD FOR READING HELICALLY RECORDED TRACKS 审中-公开
标题翻译：读取简易记录轨迹的装置和方法
公开(公告)号：WO1991016704A1
公开(公告)日：1991-10-31
申请号：PCT/US1991002623
申请日：1991-04-19
申请人： EXABYTE CORPORATION
发明人： EXABYTE CORPORATION , PISCIOTTA, E., Christopher , GEORGIS, Steven, Philip
IPC分类号： G11B05/588
CPC分类号： G11B15/4675 , G11B5/588 , G11B15/185
摘要： A helical system (10) reads tracks (18) on a storage medium (12), including distorted tracks. Each track (18) comprises a plurality of blocks, with each block having unique block-identifying information. A servo system (84) causes a head (16C) to traverse predetermined original azimuthal paths (P0) across the medium (12) for reading the blocks recorded along each of the original path (P0). A controller (50) uses the block-identifying information to determine whether any blocks expected to be read during traversal of the original path (P0) were not read. If expected blocks were not read, the controller (50) repositions the medium (12) and directs that the medium (12) be re-read with the head (16C) offset until the expected blocks are actually read. During the re-read attempts, the read head (16C) is positionally offset to traverse modified azimuthal paths (P1, P2, P3, ... P10).

10. 发明公开

EP0525108A4 APPARATUS AND METHOD FOR READING HELICALLY RECORDED TRACKS 失效
标题翻译：读取简易记录轨迹的装置和方法
公开(公告)号：EP0525108A4
公开(公告)日：1993-07-07
申请号：EP91908955
申请日：1991-04-19
申请人： EXABYTE CORPORATION
发明人： PISCIOTTA, E., CHRISTOPHER , GEORGIS, STEVEN, PHILIP
IPC分类号： G11B5/09 , G11B5/588 , G11B15/18 , G11B15/467 , H04N5/7826 , G11B15/20
CPC分类号： G11B15/4675 , G11B5/588 , G11B15/185

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