PSEUDO-POLAR MODULATION FOR RADIO TRANSMITTERS

Title:

PSEUDO-POLAR MODULATION FOR RADIO TRANSMITTERS

Document Type and Number:

WIPO Patent Application WO2005020430

Kind Code:

A3

Abstract:

Methods of modulating a radio transmitter. An amplitude modulation signal is generated based on in-phase (I) and quadrature (Q) components of an information signal, and so that it has a reduced predetermined characteristic compared to the magnitude of the I and Q components of the information signal. A complex signal is formed that has substantially the same phase angle variation and as the I and Q components of the information signal so that the product of the complex signal and the amplitude modulation signal is substantially equal to the information signal.

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Inventors:

DENT PAUL W (US)

Application Number:

PCT/US2004/022345

Publication Date:

July 28, 2005

Filing Date:

July 13, 2004

Export Citation:

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Assignee:

ERICSSON TELEFON AB L M (SE)
DENT PAUL W (US)

International Classes:

H03C3/40; H03C5/00; (IPC1-7): H03C5/00

Foreign References:

US5420536A	1995-05-30
US6194963B1	2001-02-27
EP1035701A1	2000-09-13
GB2363535A	2001-12-19

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