Recovering analog and digital signals from superimposed analog a

Details Recovering analog and digital signals from superimposed analog a Recovering analog and digital signals from superimposed analog a

1994-04-29

1996-08-27

Bocure, Tesfaldet

Pulse or digital communications

Apparatus convertible to analog

375316, H04L 2700, H04L 2706

Patent

active

055508596

ABSTRACT:
The recovery of each signal in a transmitted signal including a pair of superimposed signals is improved by the use of linear prediction. The pair of signals includes various combinations of analog and digital signals, e.g., an analog signal sample superimposed upon a digital signal sample, or a digital signal sample superimposed upon another digital signal sample. In a first embodiment, prediction coefficients for the analog signal are generated from the received signal. These coefficients are then used to recover the analog and digital signals from the received signal. In a second embodiment, the analog signal recovered, pursuant to the first embodiment, is considered a tentative estimate of the analog signal, and prediction coefficients for this tentative analog signal estimate are formed and used to generate final estimates of the analog and digital signal.

REFERENCES:
patent: 5231494 (1993-07-01), Wachob
patent: 5287200 (1994-02-01), Sullivan et al.
patent: 5347305 (1994-09-01), Belch et al.
patent: 5440585 (1995-08-01), Partridge III

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