EP 1175732 A1 20020130 - SYSTEM AND METHOD FOR SELECTIVELY CONTROLLING AMPLIFIER PERFORMANCE
Title (en)
SYSTEM AND METHOD FOR SELECTIVELY CONTROLLING AMPLIFIER PERFORMANCE
Title (de)
SYSTEM UND VERFAHREN ZUM SELEKTIVEN STEUERN EINER VERSTÄRKERLEISTUNG
Title (fr)
SYSTEME ET PROCEDE POUR LA COMMANDE SELECTIVE DU FONCTIONNEMENT D'UN AMPLIFICATEUR
Publication
Application
Priority
- US 0010239 W 20000413
- US 29375199 A 19990416
Abstract (en)
[origin: WO0064062A1] A system for extending the battery life of a wireless phone has four circuits. A first circuit (20) provides a control signal (40) indicative of a mode of the wireless phone. A second circuit (20), which may be the same as the first circuit, provides a transmit signal (Tx). A third circuit (32) receives a biasing signal (42) and amplifies the transmit signal in preparation for transmission. A fourth circuit (12) selectively alters the power dissipated by the third circuit by selectively changing the biasing signal in response to the control signal.
IPC 1-7
IPC 8 full level
H03F 1/02 (2006.01); H04B 1/16 (2006.01); H04B 1/40 (2006.01); H04B 1/04 (2006.01)
CPC (source: EP KR)
H03F 1/02 (2013.01 - EP); H03F 1/0216 (2013.01 - EP KR); H03F 1/0261 (2013.01 - EP KR); H03F 3/24 (2013.01 - EP); H04B 1/40 (2013.01 - KR); H04B 2001/045 (2013.01 - EP KR)
Citation (search report)
See references of WO 0064062A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0064062 A1 20001026; AU 4463200 A 20001102; CA 2370209 A1 20001026; CN 1352826 A 20020605; EP 1175732 A1 20020130; JP 2002542708 A 20021210; KR 20020005686 A 20020117
DOCDB simple family (application)
US 0010239 W 20000413; AU 4463200 A 20000413; CA 2370209 A 20000413; CN 00807791 A 20000413; EP 00926034 A 20000413; JP 2000613085 A 20000413; KR 20017013198 A 20011016