发明名称 MAGNETIC RECORDING AND REPRODUCING DEVICE
摘要 PURPOSE:To obtain a TV picture with normal arrangement in reproducing a tape at a tape speed earlier than that at recording by providing a magnetic head moving means moving a magnetic head in the track width direction and returning it to the initial state, and reproducing a split track sequentially in order of 1-field forming. CONSTITUTION:Video tracks T1, T2- are recorded on a magnetic tape 23 by dividing alternately one field into three with heads 28, 29 different in azimuth, and vertical synchronizing signals V1, V2- are recorded at each 3-track. Further, control signals P1, P2- in synchronizing with a period two times that of the vertical synchronizing signal are recorded to the lower part of the magnetic tape 23. In reproducing the recorded signal as above at a tape feeding speed being twice that at recording, since the arrangement of TV pictures is changed as a conventional system if the magnetic heads are fixed similarly as at recording, the magnetic heads scanning the part whose arrangement is changed are adhered together and moved to a track having the normal arrangement by piezoelectric elements 26, 27, then the signal is reproduced, in order to correct the arrangement change.
申请公布号 JPS60264175(A) 申请公布日期 1985.12.27
申请号 JP19840121422 申请日期 1984.06.12
申请人 MATSUSHITA DENKI SANGYO KK 发明人 UMEE KAZUNORI
分类号 G11B5/588;H04N5/783 主分类号 G11B5/588
代理机构 代理人
主权项
地址