发明名称 |
RECORDING/REPRODUCING DEVICE OF VIDEO AND SOUND |
摘要 |
PURPOSE:To utilize effectively a magnetic tape and to attain recording and reproducing of a video or sound signal alone by making the record of a video signal per unit time with use of a sound-only magnetic head and plural video signal magnetic head longer than that of a sound signal. CONSTITUTION:A rotational magnetic head cylinder 7 is provided with video signal magnetic heads 8 and 9 spaced by 180 deg. and a sound signal magnetic head 10. A video signal is recorded on a video track 14a by the head 9, and by a head 10 a sound is recorded on a sound track 16a, while by the head 8 a video signal is recorded on a video track 15a. The recording is repeated in the same way afterward. In this case, the frequency band of a sound signal is dropped so that data of a half-period can be matched to that of the whole period, and the record of a sound signal per unit time is made shorter than that of a video signal. Thus a magnetic tape 13 can be effectively used. |
申请公布号 |
JPS6174483(A) |
申请公布日期 |
1986.04.16 |
申请号 |
JP19840197172 |
申请日期 |
1984.09.20 |
申请人 |
MATSUSHITA ELECTRIC IND CO LTD |
发明人 |
KUGI HIDEO;ISHII SHINICHIRO |
分类号 |
G11B5/008;G11B5/027;H04N5/782;H04N5/91 |
主分类号 |
G11B5/008 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|