发明名称 |
Method and apparatus for creating a composite waveform |
摘要 |
A method and apparatus is provided for creating a composite waveform. This composite waveform is created by coding a plurality of input digital information signals. Subsequently, the plurality of coded input digital information signals are communicated over a communication medium to a digital combiner. The digital combiner combines the plurality of coded input digital information signals. Finally, the digitally combined information signal is spectrally shaped to form a composite waveform. These composite waveform creation principals may be applied to digitally encoded voice subbands in a subband coding system as well as channel information in a direct sequence code division multiple access (DS-CDMA) communication system transmitter.
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申请公布号 |
US5418813(A) |
申请公布日期 |
1995.05.23 |
申请号 |
US19930163101 |
申请日期 |
1993.12.06 |
申请人 |
MOTOROLA, INC. |
发明人 |
SCHAFFNER, TERRY M.;KOTZIN, MICHAEL D.;VAN DEN HEUVEL, ANTHONY P. |
分类号 |
H04L27/18;H04B1/69;H04B1/707;H04J13/00;H04L1/00;H04L5/12;(IPC1-7):H04L27/30 |
主分类号 |
H04L27/18 |
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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