EP 1228573 A1 20020807 - NOISE MANAGEMENT TECHNIQUE FOR SWITCHED VOLTAGE SUPPLIES
Title (en)
NOISE MANAGEMENT TECHNIQUE FOR SWITCHED VOLTAGE SUPPLIES
Title (de)
VERFAHREN ZUR GERÄUSCHMANAGEMENT FÜR GESCHALTETE SPANNUNGSVERSORGUNGEN
Title (fr)
TECHNIQUE DE REGULATION DU BRUIT POUR ALIMENTATIONS EN TENSION COMMUTEES
Publication
Application
Priority
- US 0035276 W 20001227
- US 50000600 A 20000208
Abstract (en)
[origin: WO0159944A2] A noise management method and apparatus for electronic devices using switch voltage supplies includes producing a noise signal at one or more noise frequencies and moving the noise signal out of a frequency band of interest during processing of a signal in the frequency band of interest. In one embodiment, a multiplier and divider shift a stable reference frequency out of the receive signal band of a radiotelephone. The shift is programmable and is controlled in relation to the channel currently being received by the radiotelephone.
IPC 1-7
IPC 8 full level
H04B 1/16 (2006.01); H04B 15/04 (2006.01)
CPC (source: EP)
H04B 1/1607 (2013.01); H04B 15/04 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0159944 A2 20010816; WO 0159944 A8 20020822; AU 2913201 A 20010820; CN 1354910 A 20020619; EP 1228573 A1 20020807
DOCDB simple family (application)
US 0035276 W 20001227; AU 2913201 A 20001227; CN 00808575 A 20001227; EP 00993830 A 20001227