发明名称 |
MAGNETIC REPRODUCING DEVICE |
摘要 |
PURPOSE:To obtain a magnetic reproducing device where the blur of reproduced pictures is eliminated at a still picture reproducing time and a slow picture reproducing time by generating a false vertical synchronizing signal so that there is no error with respect to time between this signal and a prescribed horizontal synchronizing signal. CONSTITUTION:A false vertical synchronizing signal generating circuit 5 generates a false vertical synchronizing signal synchronously with the rise and the fall of a head switching signal inputted from a head switching signal input terminal 10 and adds this generated signal to a reproduced video signal inputted from a reproduced video signal input terminal 11. The reproduced video signal to which the false vertical synchronizing signal is added is outputted from a video output terminal 12, and simultaneously, a prescribed horizontal synchronizing signal is detected by a synchronizing signal separating circuit 7. A timing rithmetic circuit 8 operates intervals of time between the false vertical synchronizing signal and the prescribed horizontal synchronizing signal in two fields on a basis of the detected prescribed horizontal synchronizing signal and changes the generation timing of the false vertical synchronizing signal so that they are equal to each other. |
申请公布号 |
JPS59216385(A) |
申请公布日期 |
1984.12.06 |
申请号 |
JP19830091718 |
申请日期 |
1983.05.23 |
申请人 |
MITSUBISHI DENKI KK |
发明人 |
FUJII TOSHIFUMI;UCHIDA RIYOUHEI |
分类号 |
H04N5/93;G11B5/027;H04N5/783;(IPC1-7):H04N5/783 |
主分类号 |
H04N5/93 |
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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