Method and circuit for controlling the peak power of a...

Pulse or digital communications – Transmitters – Antinoise or distortion

Reexamination Certificate

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C375S229000, C375S265000, C714S752000, C714S782000

Reexamination Certificate

active

10695768

ABSTRACT:
Disclosed is a method for controlling the peak power of a filtered signal in a single carrier data transmission system. The method comprises the steps of receiving a digital sequence (13) from a data source; generating a new digital sequence (a(k)); shaping filtering (34) the new digital sequence (a(k)) and producing a filtered digital sequence (y(k)) Characterized in that the step of generating a new digital sequence (a(k)) comprises the steps of: encoding data by an algebraic error correcting code (28); and performing a bit modification (30) by deliberately adding errors in such a way that the peak power of the filter signal affected by the deliberately introduced errors is lower than the peak power of the signal unaffected by errors. Disclosed is also a circuit for performing the method.

REFERENCES:
patent: 6201836 (2001-03-01), Kim
patent: 2263849 (1993-08-01), None
Spalvieri et al, “Codes for the peak power constrained channel” IEEE Global Telecommunications Conference, Nov. 14-16, 1995, pp. 639-643 XP000621561.
Luise De Gaudenzi, “Trellis-coded 16-QAM transmission over a nonlinear satellite channel”, International Conference on Communications, May 23-26, 1993, pp. 1723-1727, XP000448420.

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