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    • 5. 发明申请
    • MAGNETIC RECORDING/REPRODUCING DEVICE
    • 磁记录/再现设备
    • WO01001399A1
    • 2001-01-04
    • PCT/JP2000/001265
    • 2000-03-03
    • G11B5/008G11B5/53G11B5/584G11B5/588G11B15/12G11B15/18H04N5/7826H04N9/79
    • G11B5/0086G11B5/534G11B5/584G11B5/588G11B15/125G11B15/1875H04N5/78263H04N9/7921
    • In order to obtain an excellent sound quality and excellent picture quality which is free from crosstalk from a track adjacent to a target track by preventing a Hi-Fi head from picking up a 3rd track from the target track and in order to effect a special reproduction without using a field memory in a long time recording mode which provides five or more times the recording time of a standard recording mode without reducing the track pitch of the Hi-Fi head in a magnetic recording/reproducing device, when an image in the long time mode of five or more times is recorded, a pair of standard/triple-mode double-azimuth system heads are used for recording, a head which is exclusively for reproduction and has a head width smaller than the width of the recording track is provided and, further, 4 heads of conventional double-azimuth system are used.
    • 为了通过防止Hi-Fi头从目标轨道拾取第三轨道并且为了实现特殊再现而获得优良的声音质量和优良的图像质量,其不受来自与目标轨道相邻的轨道的串扰 在长时间记录模式中不使用场记忆,其提供标准记录模式的记录时间的五倍或更多倍,而不会降低磁记录/再现装置中的Hi-Fi头的轨道间距,当长时间的图像 记录五次以上的时间模式,使用一对标准/三模双方位系统头进行记录,专门用于再现的头部的头部宽度小于记录轨道的宽度 此外,使用4个常规双方位系统的头。
    • 7. 发明申请
    • RECORDING AND REPRODUCING DEVICE FOR MULTIPLE-SPEED REPRODUCTION
    • 用于多速再现的记录和再现装置
    • WO00000973A2
    • 2000-01-06
    • PCT/IB1999/001186
    • 1999-06-24
    • G11B5/008G11B15/12G11B15/18G11B15/467G11B20/12G11B27/00G11B27/30H04N5/7826H04N5/783H04N5/92H04N9/804H04N9/82
    • H04N5/783G11B5/0086G11B15/125G11B15/1875G11B15/4673G11B20/1208G11B27/005G11B27/3063G11B2220/90H04N5/78263H04N9/8042H04N9/8227
    • A recording and reproducing device (1) comprises recording means (4) which include at least two magnetic heads (A, B), mounted on a rotatably supported head disc (14) and having Z different azimuth angles, for the recording of recording data (AD) in helical recording tracks (S) on a magnetic tape (12), a part of the recording data (AD) being recordable as information data (ID) in an information data recording area (SC) of each helical recording track (S), which recording area is always the same as regards its position in a helical recording track (S), and comprises reproducing means (5) for reproducing at a maximum N-fold reproducing speed information data (ID) recorded on a magnetic tape (12), each of the at least two magnetic heads (A, B) being capable of scanning a helical reproducing track (W) which traverses N helical recording tracks (S), which device now further comprises partitioning means (35) for partitioning additional data (ZU) into K=(N*Z)-1 partitions of information data (ID) which can each be recorded in an information data recording area (SC), the recording means (4) being adapted to at least K times record the K partitions of information data (ID), which can each be recorded in an information data recording area (SC) of a helical recording track (S), in total in at least K * K information data recording areas (SC) of at least K * K helical recording tracks (S).
    • 记录和再现装置(1)包括记录装置(4),其包括安装在可旋转支撑的头盘(14)上并具有Z个不同方位角的至少两个磁头(A,B),用于记录数据 (AD)在磁带(12)上的螺旋记录轨道(S)中的一部分,记录数据(AD)的一部分可作为信息数据(ID)记录在每个螺旋记录轨道的信息数据记录区域(SC)中 S),其记录区域总是与其在螺旋记录轨道(S)中的位置相同,并且包括用于以记录在磁带上的最大N倍重放速度信息数据(ID)再现的再现装置(5) (12)中,所述至少两个磁头(A,B)中的每一个能够扫描穿过N个螺旋记录轨道(S)的螺旋形再现轨迹(W),该装置现在还包括用于分割的分隔装置(35) 附加数据(ZU)成K =(N * Z)-1分区的信息数据 (ID),其可以分别记录在信息数据记录区域(SC)中,所述记录装置(4)适于至少记录K次记录信息数据(ID)的K个分区,其可以记录在信息 至少K * K个螺旋形记录磁道(S)的至少K * K个信息数据记录区域(SC)中的螺旋式记录磁道(S)的数据记录区域(SC)。