EP 1500253 A2 20050126 - METHOD AND DEVICE FOR TRANSFORMING AN ANALOGUE RADIOTELEPHONE FROM ANALOGUE OPERATING MODE INTO DIGITAL MODE AND VICE VERSA
Title (en)
METHOD AND DEVICE FOR TRANSFORMING AN ANALOGUE RADIOTELEPHONE FROM ANALOGUE OPERATING MODE INTO DIGITAL MODE AND VICE VERSA
Title (de)
VERFAHREN UND VORRICHTUNG ZUR UMSCHALTUNG EINES ANALOGEN FUNKTELEFONS VON ANALOG- ZU DIGITAL-BETRIEB UND UMGEKEHRT
Title (fr)
PROCEDE ET DISPOSITIF DE TRANSFORMATION D UN RADIOTELEPHONE ANALOGIQUE D UN MODE DE FONCTIONNEMENT ANALOGIQUE EN UN MODE NUMERIQUE ET RECIPROQUEMENT
Publication
Application
Priority
- FR 0301321 W 20030425
- FR 0205345 A 20020426
Abstract (en)
[origin: WO03092246A2] The invention relates to a method of transforming an analogue radiotelephone from analogue operating mode into digital operating mode and vice versa owing to the fact that send (11) and receive (12) vocoders may or may not be activated manually or automatically depending on whether the radiotelephone is operating in an analogue or digital network respectively. For this purpose, the invention involves the use of a single emitter modulator (3) which is compatible with both digital signals and analogue signals and a single reception demodulator (8) which is compatible with both digital signals and analogue signals.
IPC 1-7
IPC 8 full level
H04B 1/40 (2006.01); H04Q 7/32 (2006.01); H04W 88/06 (2009.01)
CPC (source: EP)
H04B 1/406 (2013.01); H04W 88/06 (2013.01)
Citation (search report)
See references of WO 03092246A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 03092246 A2 20031106; WO 03092246 A3 20040715; AU 2003263330 A1 20031110; AU 2003263330 A8 20031110; EP 1500253 A2 20050126; FR 2839235 A1 20031031; FR 2839235 B1 20040820
DOCDB simple family (application)
FR 0301321 W 20030425; AU 2003263330 A 20030425; EP 03740673 A 20030425; FR 0205345 A 20020426