发明授权
- 专利标题: Apparatus for high-density minimal crosstalk recording and reproducing of terminance and chrominance signals using a magnetic tape
- 专利标题(中): 用于使用磁带记录和再现终端和色度信号的高密度最小串扰的装置
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申请号: US890347申请日: 1986-07-30
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公开(公告)号: US4811119A公开(公告)日: 1989-03-07
- 发明人: Masaaki Kobayashi , Akihiro Takeuchi , Kazuhiro Yamanishi , Sukeichi Miki , Yoshitomi Nagaoka
- 申请人: Masaaki Kobayashi , Akihiro Takeuchi , Kazuhiro Yamanishi , Sukeichi Miki , Yoshitomi Nagaoka
- 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: JPX60-171505 19850802
- 主分类号: H04N9/81
- IPC分类号: H04N9/81 ; H04N9/825 ; H04N5/782 ; H04N9/79
摘要:
A magnetic tape recording/reproducing apparatus for recording video signals on a magnetic tape without providing a guard band between each two adjacent signal tracks. The apparatus comprises a first switching circuit for exchanging 2-channel component signals every nH period to obtain two combined signals each composed of the 2-channel signals which alternate every nH period, two modulators for modulating the two combined signals, a head section having two pairs of rotarty magnetic heads for recording the modulated signals on the magnetic tape so that each two adjacent blocks contain a same channel component signal and for reproducing the recorded signals from the magnetic tape, two demodulators for demodulating the reproduced signals, and a second switching circuit for exchanging the demodulated signals every nH to obtain the 2-channel component signals. With this arrangement, the recording density is remarkably increased and the cross talk interference hardly occur.
公开/授权文献
- US5907686A Display control system having a PCMCIA interface 公开/授权日:1999-05-25