Time delay estimation in a transmitter

Details Time delay estimation in a transmitter Time delay estimation in a transmitter

2006-02-21

2006-02-21

Fan, Chieh M. (Department: 2638)

Pulse or digital communications

Transmitters

Antinoise or distortion

Reexamination Certificate

active

07003051

ABSTRACT:
In an embodiment, a transmitter section for a mobile device includes a predistorter for predistorting an input signal input to a modulation section. Predistortion values may be selected from a look-up table in response to a fed back signal from the output of the modulation section. A delay between the input signal and the fed back signal may be determined in two stages: a coarse delay estimation for determining a whole number of sample cycles, and a fine delay estimation for determining a fraction of a sample cycle to be added to the coarse delay estimation value.

REFERENCES:
patent: 6741662 (2004-05-01), Francos et al.
patent: 6836517 (2004-12-01), Nagatani et al.
patent: WO 01/80471 (2001-10-01), None
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