发明名称 |
Video player/recorder for recording on a blank disk and method for home recording. |
摘要 |
A blank disc (12) for a home video player/recorder has two or more reference tracks (41, 42) that are formed with the precision of a factory record and under the controlled environmental conditions of disc replication in a factory. When the disc is loaded into the player/recorder for a write operation, the player/recorder reads the reference tracks and simultaneously samples the track error signal and stores the error signal values in the data store of a processor. During the actual write operation, the processor operates on the stored values to generate a control signal to position the write head to define a track that follows the shape of the two adjacent reference tracks in proportion to the spacing of the track (40) between the reference tracks. Thus the player/recorder follows the precision factory reference tracks in spite of track distortion that usually occurs in a home redorder and in a home recording environment, and the track distortion of the home recorded disc is limited to about the track distortion of a factory recording.
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申请公布号 |
EP0023767(A1) |
申请公布日期 |
1981.02.11 |
申请号 |
EP19800302240 |
申请日期 |
1980.07.02 |
申请人 |
DISCOVISION ASSOCIATES |
发明人 |
GREEN, ROBERT CHARLES;KAPPEL, GERTRUDE;STIGLIANI JR., DANIEL JOHN |
分类号 |
G11B7/24;G11B7/00;G11B7/0045;G11B7/095;G11B21/10;G11B23/30;G11B27/10;(IPC1-7):G11B7/08;G11B23/18 |
主分类号 |
G11B7/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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