发明名称 A tape medium recording and/or reproducing apparatus.
摘要 A tape medium recording and/or reproducing apparatus for use in recording or reproducing information on or from a plurality of tracks (34a, 34b, 34c) on a tape medium in which each track (34a, 34b, 34c) has first and second regions (31, 32, 33) defined therein in a direction conforming to the direction of scan and each first region (31) has a positioning signal recorded in it and selected ones also have a tracking pilot signal recorded in it. The apparatus includes a positioning signal detector (7) for detecting the positioning signal to provide a reproducing position signal (104), and a reproduction timing generator (8) for generating a reproduction timing signal (105) at a first timing determined by the reproducing position signal (104) . A timing memory (9) is provided to store the length of time from the timing, at which the rotational reference position of a cylinder (2) has been detected, to the first timing. When no positioning signal can be detected, a timing protector (10) generates a pseudo timing signal (115) based on a previously detected timing stored in the timing memory (9) and also for combining the pseudo timing signal (115) with the reproduction timing signal (105) to provide a protection timing signal (107). A tracking control section (21) performs tracking control in reference to a level determined by the pilot signals sampled by the sample timing signal (108) . The apparatus can perform insert recording by determining the timing therefor based on the reproduction timing signal (105). <IMAGE>
申请公布号 EP0580306(A3) 申请公布日期 1995.01.04
申请号 EP19930305185 申请日期 1993.07.01
申请人 MATSUSHITA ELECTRIC IND CO LTD 发明人 SAKAKIBARA YOSHIO;GOTOU MAKOTO;ISAKA HARUO
分类号 G11B15/467;G11B15/04;G11B15/473;G11B15/60;G11B27/032;G11B27/036;G11B27/30;H04N5/7826 主分类号 G11B15/467
代理机构 代理人
主权项
地址