Transmitter comprising an eletronic arrangement for generating a

Details Transmitter comprising an eletronic arrangement for generating a Transmitter comprising an eletronic arrangement for generating a

1991-05-31

1995-11-21

Safourek, Benedict V.

Pulse or digital communications

Pulse code modulation

Differential

341 77, 375252, 375260, H04L 2704

Patent

active

054694752

ABSTRACT:
An electronic arrangement for generating a modulated carrier signal in a transmitter includes a sigma-delta (one-bit) signal converter and a mixer. The sigma-delta converter includes, in a closed signal loop, an adder, a low pass filter, and a pulse shaper driven with a specific sample rate. The mixer is driven with a carrier frequency fc and has an input coupled with an output of the pulse shaper. The carrier frequency fc is equal to or an integer multiple of the half sample rate.

REFERENCES:
patent: 4291300 (1981-09-01), Bader
patent: 4485357 (1984-11-01), Voorman
patent: 4507792 (1985-03-01), Yamakido et al.
patent: 4851841 (1989-07-01), Sooch

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