发明名称 |
FARBFERNSEHGERAET MIT EINEM EINGEBAUTEN TELETEXTEMPFAENGER |
摘要 |
A demodulating means receiving television broadcasting electric waves and demodulating the received television video signal and multiplexed teletext signal respectively to primary color signals of R, G and B and a double speed converting means for time-axially compressing within one horizontal period the demodulated R, G and B primary color signals of both are provided so that the television video signal and teletext signal double speed converted within opne horizontal scanning period may be alternately switched by a first switching means and may be displayed on a picture tube through a driving means. Further, in the case of displaying them, by a deflecting means, the vertical amplitude can be made smaller than at the normal time and the vertical picture position can be set in a proper position. Thereby, a television video signal and teletext signal in which the horizontal amplitude and vertical amplitude are set to be, for example, 1/2 those at the normal time can be simultaneously displayed on the picture tube. |
申请公布号 |
DE3923907(A1) |
申请公布日期 |
1990.02.22 |
申请号 |
DE19893923907 |
申请日期 |
1989.07.19 |
申请人 |
KABUSHIKI KAISHA TOSHIBA, KAWASAKI, KANAGAWA, JP |
发明人 |
KAMEMOTO, KAZUHIRO, KUMAGAYA, SAITAMA, JP |
分类号 |
H04N9/00;H04N3/22;H04N7/025;H04N7/03;H04N7/035;H04N7/088 |
主分类号 |
H04N9/00 |
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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