METHOD AND DEVICE FOR PHASE REGULATION

WIPO Patent Application WO1999033169

A3

The invention relates to a method for the regulation of transmitted phase of a signal in a device (100) which is part of a system for electromagnetic signal transmission, in which system the transmitted signal has periods when it contains information and periods when it does not contain information. The method comprises the control of the modulation position of a phase shifter (110) which has a linear and a non-linear range, power amplification (120) of the signal, detection of unwanted phase shifts in the signal transmitted by the device (100) caused within the power amplifier (120), and the detection of the information content of the signal, and is characterized in that the phase shifter (110) is reset to a particular predetermined modulation position phi ini in the event of detection of the absence of information in the signal. The predetermined modulation position phi ini to which the phase shifter (110) is reset is preferably situated within the linear range of the phase shifter.

JPS6442904	HIGH FREQUENCY POWER MONITOR
JP3371837	INDUSTRIAL APPLICABILITY: Feedforward Amplifier and Amplification Method
JP4127639	Non-linear compensator

BERGMAN JOHAN
LOEFVING PER
HEDSTROEM JAN ROBERT
KRAUS THORSTEN

PCT/SE1998/002416

September 10, 1999

December 22, 1998

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ERICSSON TELEFON AB L M (SE)

H03F1/32; (IPC1-7): H03F1/32; H03G3/20

WO1997028598A1	1997-08-07
WO1996030997A1	1996-10-03
WO1994010765A1	1994-05-11

GB2240893A	1991-08-14
US5426641A	1995-06-20

PATENT ABSTRACTS OF JAPAN; & JP 8008653 A (KOKUSAI DENKI KK) 12 January 1996.
PATENT ABSTRACTS OF JAPAN; & JP 6037831 A (FUJITSU LTD) 10 February 1994.
PATENT ABSTRACTS OF JAPAN; & JP 9116474 A (SONY CORP) 2 May 1997.

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