Multiple communication protocols with common sampling rate

Details Multiple communication protocols with common sampling rate Multiple communication protocols with common sampling rate

2007-01-02

2007-01-02

Ghayour, Mohammed (Department: 2611)

Pulse or digital communications

Receivers

C455S456100, C370S329000

Reexamination Certificate

active

10615902

ABSTRACT:
A radio including a first channel for receiving signals at a first frequency and a second channel for receiving and transmitting signals at a second frequency. A multiplexer connects the first and second channels through an A/D and D/A converter to a digital signal processor. An oscillator is connected to and provides a common sampling frequency to the A/D and D/A converters. The digital signal processor controls the multiplexer and modifies the received digital signals to accommodate for the different carrier frequencies of the channels using the common sampling rate. A frequency synthesizer is connected to the oscillator and provides different frequency signals for the channels. A third channel may be provided for receiving and transmitting signals at a third frequency and is also connected to the multiplexer. The processor is capable of performing communication protocols for at least two of the channels simultaneously.

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Harada, H. et al.: “A new small-size multi-mode and multi-task software radio prototype for future intelligent transport systems,” IEEE Vehicular Technology Conference, New York, NY, pp. 2366-2370 (Sep. 2002).

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