EP 0235264 A4 19900226 - DIGITAL RADIO FREQUENCY RECEIVER.
Title (en)
DIGITAL RADIO FREQUENCY RECEIVER.
Title (de)
DIGITALER FUNKEMPFÄNGER.
Title (fr)
RECEPTEUR DE FREQUENCE RADIO NUMERIQUE.
Publication
Application
Priority
US 77173685 A 19850903
Abstract (en)
[origin: WO8701531A1] The digital receiver (100) contemplates a digital radio receiver which operates on a received analog signal which has been converted to a digital form after preselection at the output of the antenna. The digital receiver (100) of the present invention comprises a preselector (106), a high-speed analog-to-digital (A/D) converter (108), a digitally implemented itermediate-frequency (IF) selectively section (110) having an output signal at substantially baseband frequencies, and digital signalprocessor (DSP) circuit (120) performing demodulation and audio filtering. The radio architecture of the present invention is programmably adaptable to virtually every known modulation scheme and is particularly suitable for implementation on integrated circuits.
IPC 1-7
IPC 8 full level
H03H 17/02 (2006.01); H03D 1/22 (2006.01); H03D 3/00 (2006.01); H04B 1/26 (2006.01); H04B 14/04 (2006.01)
CPC (source: EP KR)
H03D 1/2245 (2013.01 - EP); H03D 1/24 (2013.01 - KR); H03D 3/007 (2013.01 - EP); H03D 3/006 (2013.01 - EP); H03D 2200/005 (2013.01 - EP); H03D 2200/0052 (2013.01 - EP)
Citation (search report)
- WO 8605936 A1 19861009 - MOTOROLA INC [US]
- DE 3138464 A1 19830414 - BOSCH GMBH ROBERT [DE]
- EP 0035166 A1 19810909 - LICENTIA GMBH [DE]
- EP 0074858 A2 19830323 - INT STANDARD ELECTRIC CORP [US]
- US 4560941 A 19851224 - WELLES II KENNETH B [US], et al
- See references of WO 8701531A1
Designated contracting state (EPC)
DE FR GB IT NL SE
DOCDB simple family (publication)
WO 8701531 A1 19870312; AU 4009989 A 19891207; AU 4010089 A 19891207; AU 4010189 A 19891207; AU 591181 B2 19891130; AU 611317 B2 19910606; AU 611318 B2 19910606; AU 611584 B2 19910613; AU 6335586 A 19870324; CA 1304786 C 19920707; DK 184287 A 19870410; DK 184287 D0 19870410; EP 0235264 A1 19870909; EP 0235264 A4 19900226; FI 85076 B 19911115; FI 85076 C 19920225; FI 871897 A0 19870429; FI 871897 A 19870429; JP 2829605 B2 19981125; JP S63500766 A 19880317; KR 880700532 A 19880315; MY 103057 A 19930430
DOCDB simple family (application)
US 8601764 W 19860825; AU 4009989 A 19890821; AU 4010089 A 19890821; AU 4010189 A 19890821; AU 6335586 A 19860825; CA 517169 A 19860829; DK 184287 A 19870410; EP 86905578 A 19860825; FI 871897 A 19870429; JP 50479186 A 19860825; KR 870700384 A 19870502; MY PI19880103 A 19880204