发明名称 |
Simultaneous analog and digital communication with improved phase immunity |
摘要 |
A first phase change is introduced to an analog signal based on a symbol specified by a data signal, where the symbol is one of a plurality of symbols in a symbol constellation. The analog signal is added to the data signal to form a combined signal which is transmitted over a communication channel that introduces a channel phase change to the analog and data signals. After transmission through the communication channel, the combined signal comprises a phase changed analog signal and a phase changed data signal. A received symbol is specified by the phase changed data signal, and a phase shift is introduced to the phase changed analog signal based on the identity of the received symbol.
|
申请公布号 |
US5881047(A) |
申请公布日期 |
1999.03.09 |
申请号 |
US19940327270 |
申请日期 |
1994.10.21 |
申请人 |
PARADYNE CORPORATION |
发明人 |
BREMER, GORDON;KO, KENNETH DAVID;SMITHWICK, LUKE J. |
分类号 |
H04L27/18;H04J7/00;H04L27/34;(IPC1-7):H04J11/00 |
主分类号 |
H04L27/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|