EP 2033328 A1 20090311 - RADIO LOOP-BACK
Title (en)
RADIO LOOP-BACK
Title (de)
FUNK-PRÜFSCHLEIFE
Title (fr)
BOUCLAGE RADIO
Publication
Application
Priority
- CA 2007001059 W 20070615
- US 80489406 P 20060615
Abstract (en)
[origin: WO2007143846A1] A radio having a transmitter, a receiver, and a loop-back circuit is provided. The loop-back circuit, when engaged, feeds a transmission from the transmitter to the receiver. According to an embodiment of the invention, the loop-back circuit utilises at least one electronic component that is also used by the transmitter or the receiver. This can reduce a number of electronic components of the radio. The at least one electronic component might for example include a mixer and/or an oscillator. The mixer generates a mixer output by mixing a signal from the oscillator with the transmission from the transmitter. The loop-back circuit provides the mixer output to the receiver when the loop-back circuit is engaged. In specific implementations, both the mixer and the oscillator are used by the transmitter.
IPC 8 full level
H04B 1/40 (2006.01); H04B 1/04 (2006.01); H04B 1/16 (2006.01); H04B 17/00 (2006.01)
CPC (source: EP)
H04B 17/102 (2015.01); H04B 17/19 (2015.01)
Citation (search report)
See references of WO 2007143846A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
DOCDB simple family (application)
CA 2007001059 W 20070615; EP 07719975 A 20070615