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    • 3. 发明公开
    • Recording apparatus and reproducing apparatus with editing function
    • Aufnahme- undWiedergabegerät。
    • EP0437315A1
    • 1991-07-17
    • EP91300042.8
    • 1991-01-03
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.NIPPON HOSO KYOKAI
    • Togashi, SigekazuSuesada, KunioSekimoto, KunioOba, YoshinobuNakayama, Tadashi
    • G11B27/00
    • G11B15/1875G11B27/024G11B27/029G11B27/032G11B27/036G11B2220/90
    • A recording apparatus of the present invention comprises selective guard adding means (7) for predicting, at the time of editing, positions of adjacency of new tracks to previously recorded tracks obtained at the time of completion of new track recording, and adds, at the time of editing, guards to locations where disturbance due to residue of erasing of the same azimuth might occur in order to remove or reduce the disturbance due to residue of erasing of the same azimuth caused at the editing point.
      When performing reproduction from a recording medium whereon tracks recorded by heads of at least two kinds of azimuth angles are disposed alternately and a plurality of tracks are handled as one recording unit and recorded, a reproducing apparatus of the present invention is so configured that the center of each of heads located at both ends of reproducing heads may be shifted to the inside as compared with each corresponding recording track. When disturbance due to the residue of erasing of the same azimuth occurs at the editing point, therefore, more signals of tracks to be originally reproduced can be reproduced, resulting in a greater resistance to disturbance of the same azimuth.
    • 本发明的记录装置包括选择性保护加法装置(7),用于在编辑时将新轨道的邻接位置预测到在新轨道记录完成时获得的先前记录的轨迹,并在 编辑时间,可能发生由于残留擦除相同方位角而引起干扰的位置,以消除或减少由于在编辑点引起的相同方位角的擦除残留而引起的干扰。 当从记录介质执行再现时,由至少两种方位角的记录头记录的轨迹交替地设置并且多个轨迹被作为一个记录单元被处理并被记录,本发明的再现装置被配置成使得该中心 位于再现磁头的两端的每个磁头可以与每个对应的记录磁道相比移动到内部。 由于在编辑点发生由于相同方位的擦除残留而导致的干扰,因此可以再现更多的原始再现的轨道的信号,导致对相同方位角的较大的抗干扰性。