EP 1421683 A2 20040526 - WIRELESS SIGNAL AMPLIFICATION SYSTEM AND A TELEVISION SIGNAL DECODER COMPRISING ONE SUCH SYSTEM
Title (en)
WIRELESS SIGNAL AMPLIFICATION SYSTEM AND A TELEVISION SIGNAL DECODER COMPRISING ONE SUCH SYSTEM
Title (de)
SYSTEM ZUR VERSTÄRKUNG EINES HOCHFREQUENZSIGNALS UND DEKODIERER FÜR FERNSEHSIGNALE MIT EINEM SOLCHEN SYSTEM
Title (fr)
SYSTEME D'AMPLIFICATION D'UN SIGNAL HERTZIEN ET DECODEUR DE SIGNAUX DE TELEVISION COMPORTANT UN TEL SYSTEME
Publication
Application
Priority
- FR 0201759 W 20020524
- FR 0108206 A 20010621
Abstract (en)
[origin: FR2826525A1] The invention relates to a wireless signal amplification system (1) comprising amplification means (6) consisting of numerous different amplifiers (61 to 6n) which are distributed in an analogue processing chain (4). Said invention also comprises means for converting (12) analogue signals into digital signals which, at input, are connected to the outlet of said analogue processing chain (4) and, at output, are connected to at least the gain control means (16) of said amplification means (6) according to a value that is representative of a characteristic of said wireless signal (1). In this way, the sampling of said wireless signal (1) by the converter (12) is optimised. Said control means (16) comprise means for establishing an average gain control signal (18). The inventive system is characterised in that said control means (16) also comprise, for each of said amplifiers (61 to 6n), means for calculating an individual gain control signal (20i to 20n) according to a transfer function (H1 to Hn) which is specific to each amplifier and which is applied to the average gain control signal.
IPC 1-7
IPC 8 full level
H03G 3/00 (2006.01); H03G 3/30 (2006.01); H03M 1/18 (2006.01)
CPC (source: EP KR US)
H03G 3/001 (2013.01 - EP US); H03G 3/3068 (2013.01 - EP US); H03M 1/185 (2013.01 - EP US); H04N 5/14 (2013.01 - KR)
Citation (search report)
See references of WO 03001689A2
Designated contracting state (EPC)
DE FI FR GB IT NL
DOCDB simple family (publication)
FR 2826525 A1 20021227; FR 2826525 B1 20031003; AU 2002304493 A1 20030108; CN 1258261 C 20060531; CN 1543706 A 20041103; EP 1421683 A2 20040526; KR 100753589 B1 20070830; KR 20040010745 A 20040131; US 2004171362 A1 20040902; US 7054604 B2 20060530; WO 03001689 A2 20030103; WO 03001689 A3 20040212
DOCDB simple family (application)
FR 0108206 A 20010621; AU 2002304493 A 20020524; CN 02812327 A 20020524; EP 02732884 A 20020524; FR 0201759 W 20020524; KR 20037016572 A 20031218; US 48101403 A 20031217