Transceiver for transmitting and receiving stair-stepped sinusoi

Details Transceiver for transmitting and receiving stair-stepped sinusoi Transceiver for transmitting and receiving stair-stepped sinusoi

1993-07-14

1995-04-18

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

375 36, 370116, 34082568, 327126, 327129, H04B 138

Patent

active

054084970

ABSTRACT:
A transceiver for transmitting and receiving digital data represented as stair-stepped sinusoidal waveforms over twisted pair lines interconnecting nodes of a network. The transmitter of the transceiver converts square waves into the stair stepped sinusoidal waveforms by utilizing a number of current sources for supplying differing amounts of current to a resistor coupled across the twisted pair lines. Shift registers control a set of switches which control the direction and the amount of current flowing through the resistor. Thereby, the output voltage across the resistor can be controlled to produce the stair-stepped sinusoidal waveform by clocking the digital signal to the shift registers. The receiver of the transceiver re-converts received stair-stepped sinusoidal waveforms back to their respective digital signals.

REFERENCES:
patent: 4563548 (1986-01-01), Misherghi et al.
patent: 4896333 (1990-01-01), Can
patent: 4977334 (1990-12-01), Handler
patent: 5237561 (1993-08-01), Pyhalammi

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