EP 2243269 A1 20101027 - RADIOFREQUENCY TRANSMISSION SYSTEM
Title (en)
RADIOFREQUENCY TRANSMISSION SYSTEM
Title (de)
FUNKFREQUENZENÜBERTRAGUNGSSYSTEM
Title (fr)
SYSTEME D'EMISSION RADIOFREQUENCE
Publication
Application
Priority
- FR 2009050050 W 20090114
- FR 0850233 A 20080115
Abstract (en)
[origin: WO2009092963A1] The invention relates to a radiofrequency transmission system that comprises: a means (18) for producing at least one digital signal quantified on N bits; for each of said at least one digital signal, digital processing means (20, 22) including: sigma-delta filters (42, 44) capable of producing, on the basis of a digital input signal quantified on N bits, a digital output signal quantified on M bits, where M is lower than N; downstream from the sigma-delta filters (42, 44), a means (46) for repetition over-sampling; and downstream from the means (46) for repetition over-sampling, a convolution means (48); digital-analog conversion means (50, 52) capable of converting a digital output signal into an analog signal; and an analog filtration means (14) capable of filtering said analog signal so as to select a narrow frequency band including the second frequency.
IPC 8 full level
H04L 27/36 (2006.01); H03M 3/02 (2006.01); H04B 7/005 (2006.01); H04W 88/02 (2009.01)
CPC (source: EP US)
H04B 1/0053 (2013.01 - EP US)
Citation (search report)
See references of WO 2009092963A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
FR 2926422 A1 20090717; FR 2926422 B1 20130816; EP 2243269 A1 20101027; US 2010272213 A1 20101028; US 8284858 B2 20121009; WO 2009092963 A1 20090730
DOCDB simple family (application)
FR 0850233 A 20080115; EP 09704910 A 20090114; FR 2009050050 W 20090114; US 83229110 A 20100708