发明名称 |
TRANSMISSION SYSTEM OF INFORMATION DEPENDENT UPON TELEVISION SIGNAL |
摘要 |
PURPOSE:To prevent color information from being lost by modulating color burst signals in position by additional information in the system where additional information is superposed onto television signals. CONSTITUTION:Time width Td of gate signal G is increased or reduced according to contents of additional information by integral multiples of one period T of color burst signals. Gate signal G2 rises simultaneously with the rise of gate signal G1 and has a time width which covers completely the eight-cycle color burst signal. The position of gate signal G2 is modulated by time width Td of gate signal G1 which synchronizes with the horizontal synchronizing signal, and eight-cycle components of the reference burst signal are taken out by gate signal G2 and are superposed as color burst onto video signals. |
申请公布号 |
JPS5498112(A) |
申请公布日期 |
1979.08.02 |
申请号 |
JP19780005055 |
申请日期 |
1978.01.19 |
申请人 |
MATSUSHITA ELECTRIC IND CO LTD |
发明人 |
AOKI NORIO |
分类号 |
H04N11/00;H04N7/00;H04N7/025;H04N7/03;H04N7/035;H04N7/08;H04N11/24 |
主分类号 |
H04N11/00 |
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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