BPSK modulator for a digital signal transmitter

Details BPSK modulator for a digital signal transmitter BPSK modulator for a digital signal transmitter

1993-12-21

1996-03-26

Chin, Stephen

Pulse or digital communications

Systems using alternating or pulsating current

Angle modulation

375308, 375284, 332103, H04L 2503

Patent

active

055027458

ABSTRACT:
An improved digital data modulator is provided for a digital transmitter. The digital data modulator comprises of a pair of digital data synthesizers which are controlled in a manner which produces complex conjugate modulated data signals of the input signals. Summing means are provided to sum the outputs of the digital data synthesizers in a manner which removes the imaginary components and simultaneously reduces the side load power without employing conventional filters.

REFERENCES:
patent: 4930141 (1990-05-01), Ohmagari
patent: 5162763 (1992-11-01), Morris
patent: 5172394 (1992-12-01), Kuster et al.
patent: 5225795 (1993-07-01), Iinuma

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