Global Patent Index - EP 1051637 A1

EP 1051637 A1 2000-11-15 - RECEIVER FOR DS-CDMA SIGNALS

Title (en)

RECEIVER FOR DS-CDMA SIGNALS

Title (de)

EMPFÄNGER FÜR DS-CDMA SIGNALE

Title (fr)

RECEPTEUR DE SIGNAUX DS-CDMA

Publication

EP 1051637 A1 (EN)

Application

EP 99960990 A

Priority

  • EP 9908934 W
  • GB 9826043 A

Abstract (en)

[origin: WO0033102A1] A receiver for direct sequence code division multiple access (DS-CDMA) signals particularly for GPS signals includes a plurality of correlators. The correlators include a multiple delay and summing circuit (29) which produces mutually offset versions of the received signal which are summed and then correlated with the spreading code. Alternatively an element (39) takes the output of the code NCO (26) and produces from it multiple offset versions of the spreading code summed together which are correlated with the received signal. Correlation will be achieved if any one of the multiple offset received signals correlates with the locally generated spreading code or if any one of the offset spreading codes correlates with the received signal.

IPC 1-7 (main, further and additional classification)

G01S 1/04; G01S 5/14; H04B 1/707

IPC 8 full level (invention and additional information)

G01S 1/00 (2006.01); G01S 19/30 (2010.01); H04B 1/707 (2011.01); H04Q 7/38 (2006.01)

CPC (invention and additional information)

G01S 19/30 (2013.01); H04B 1/709 (2013.01); H04B 2201/70715 (2013.01)

Citation (search report)

See references of WO 0033102A1

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

WO 0033102 A1 20000608; EP 1051637 A1 20001115; GB 9826043 D0 19990120; JP 2002531965 A 20020924

INPADOC legal status


2005-12-14 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20050601

2001-01-31 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20001208

2000-11-15 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB