发明名称 |
TELEVISION TRANSMISSION METHOD, TRANSMITTER AND RECEIVER WITH A PLURALITY OF SOUND CHANNELS |
摘要 |
1. A television transmission method combining the transmission of images with that of a plurality of sound channels in which amplitude modulation of a carrier (7) is employed for transmitting a first sound channel, said carrier being also frequency or phase shift keying modulated by so as to transmit at least a second sound channel, characterized in that the modulating signal used for said frequency or phase shift keying is a sub-carrier which is directly modulated by the audio frequency signal of a second sound channel. |
申请公布号 |
DE3365374(D1) |
申请公布日期 |
1986.09.25 |
申请号 |
DE19833365374 |
申请日期 |
1983.02.02 |
申请人 |
LA RADIOTECHNIQUE, SOCIETE ANONYME DITE:;N.V. PHILIPS' GLOEILAMPENFABRIEKEN |
发明人 |
GEOFFRAY, CHRISTIAN;LECAT, JEAN |
分类号 |
H04J9/00;H04N7/06;(IPC1-7):H04N7/06 |
主分类号 |
H04J9/00 |
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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