EP 1177635 A1 20020206 - RECEIVER CIRCUIT
Title (en)
RECEIVER CIRCUIT
Title (de)
EMPFÄNGERSCHALTUNG
Title (fr)
CIRCUIT RECEPTEUR
Publication
Application
Priority
- GB 9910662 A 19990507
- US 0012298 W 20000504
Abstract (en)
[origin: GB2349783A] A radio frequency receiver circuit, for example for receiving digital terrestrial television broadcast signals. Such signals include wanted signals in wanted frequency bands, and may also include interference signals close to the wanted frequency bands. The receiver circuit receives a first intermediate frequency signal (10), and achieves downconversion by sub-sampling in an analog-digital converter (12). The sampling rate of the analog-digital converter is chosen relative to the intermediate frequency such that a known interference signal does not alias into the wanted frequency band, allowing it to be removed at baseband. The system may also include tuning circuits (6/16), automatic gain control (11), filtering (8/18) and demodulation (14).
IPC 1-7
IPC 8 full level
CPC (source: EP)
H04B 1/28 (2013.01)
Citation (search report)
See references of WO 0069083A1
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)
GB 2349783 A 20001108; GB 9910662 D0 19990707; EP 1177635 A1 20020206; JP 2002544703 A 20021224; JP 4594535 B2 20101208; WO 0069083 A1 20001116
DOCDB simple family (application)
GB 9910662 A 19990507; EP 00930391 A 20000504; JP 2000617568 A 20000504; US 0012298 W 20000504