发明名称 |
HYBRIDES UND VOLLDIGITALES FM IN-BAND AUF-KANAL DIGITALES AUDIO-RUNDFUNK VERFAHREN UND SYSTEM |
摘要 |
This invention provides a method of broadcasting including the steps of providing a broadcast signal in a central frequency band of an FM radio channel; providing a first plurality of sub-carriers in an upper sideband of the FM radio channel; providing a second plurality of sub-carriers in a lower sideband of the FM radio channel; modulating a first group of the first plurality of sub-carriers with a complementary punctured convolution coded encoded version of program material; modulating a first group of the second plurality of sub-carriers with the complementary punctured convolution coded version of the program material; and transmitting the broadcast signal, the first group of the first plurality of sub-carriers and the first group of the second plurality of sub-carriers. In an all-digital version of the invention, the central frequency band may include a plurality of sub-carriers transmitted at a lower power level than that of the sub-carriers in the upper and lower sidebands. These additional sub-carriers can be used to transmit additional data. Transmitters and receivers which utilized the method are also included. |
申请公布号 |
DE69928918(T2) |
申请公布日期 |
2006.08.17 |
申请号 |
DE1999628918T |
申请日期 |
1999.02.24 |
申请人 |
IBIQUITY DIGITAL CORP. |
发明人 |
KROEGER, WILLIAM;CAMMARATA, MAUREEN;MARTINSON, EDWARD;BAIRD, SCOTT;PEYLA, JAMES;WALDEN, GLYNN |
分类号 |
H04H20/48;H01S5/30;H01S5/40;H04B1/04;H04J11/00;H04L5/02;H04L5/06;H04L27/26 |
主分类号 |
H04H20/48 |
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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