The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 2001
Filed:
Dec. 17, 1998
Gerhard Bethscheider, Ayl, DE;
Guy Harles, Howald, LU;
Abstract
For determining the operating point of a non-linear amplifier,of a communication channel,, for example of a transponder in a communication satellite, a first input signal I,is transmitted through the communication channel,at a power level P,which drives the non-linear amplifier,in a non-linear operation mode. In addition, a second input signal i,is transmitted through the communication channel,simultaneously with the first input signal I,. The second input signal i,is transmitted at a level below the level of the first input signal I,. If the contribution of the second input signal i,to the total input of the non-linear amplifier is small, the operating point of the non-linear amplifier is determined almost only by the first input signal. Therefore, the output power P,corresponding to the second signal i,is determined most strongly by the input power P,of the first signal I,. The operating point (I,, P,) of said non-linear amplifier (,) is determined ont he basis of an output signal (o,) of said communication channle (,) corresponding to said second signal (i,)