发明授权
US5388007A Apparatus for recording and reproducing signals which provides guard
bands between sets of recording tracks to improve editing
失效
用于记录和再现信号的装置,其在记录轨道组之间提供保护带以改善编辑
- 专利标题: Apparatus for recording and reproducing signals which provides guard bands between sets of recording tracks to improve editing
- 专利标题(中): 用于记录和再现信号的装置,其在记录轨道组之间提供保护带以改善编辑
-
申请号: US110678申请日: 1993-08-09
-
公开(公告)号: US5388007A公开(公告)日: 1995-02-07
- 发明人: Kunio Sekimoto
- 申请人: Kunio Sekimoto
- 申请人地址: JPX Osaka
- 专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址: JPX Osaka
- 优先权: JPX1-33989 19890214
- 主分类号: G11B5/008
- IPC分类号: G11B5/008 ; G11B5/48 ; G11B5/53 ; G11B20/00 ; G11B27/024 ; G11B27/02 ; G11B5/03 ; G11B15/14
摘要:
A recording and reproducing apparatus includes two recording heads, two re-recording heads and one erasing head. The two recording heads are utilized to record directly adjacent recording tracks having no guard band therebetween. The adjacent recording tracks constitute a recording track set, and a plurality of such recording track sets are recorded on a recording medium such that a guard band is provided between adjacent ones of the recording track sets. The erasing head has an erasing width which is greater than a corresponding width of each recording track set, and it utilized to erase an already recording track set which was recorded using the two recording heads. The re-recording heads each have a recording width which is greater than that of each of the two recording heads, and are utilized to record newly recorded track sets in place of the already recorded track sets erased by the erasing head.
公开/授权文献
- US4301699A Drill actuating mechanism 公开/授权日:1981-11-24