| 摘要 |
The invention provides a device for coupling at least one non-wired data unit with first and second wired segments, the first wired segment concurrently carrying a first wired digital data signal and a telephone signal using frequency division multiplexing over a high frequency band and a low frequency band, respectively, the second wired segment concurrently carrying a second wired digital data signal in a data signal frequency band and a service signal in a service signal frequency band using frequency division multiplexing, the data signal frequency band being distinct from the service signal frequency band. |
