Global Patent Index - EP 1090465 A1

EP 1090465 A1 2001-04-11 - METHOD AND APPARATUS FOR STORING AND ACCESSING DIFFERENT CHIP SEQUENCES

Title (en)

METHOD AND APPARATUS FOR STORING AND ACCESSING DIFFERENT CHIP SEQUENCES

Title (de)

VERFAHREN UND VORRICHTUNG ZUR SPEICHERUNG VON VERSCHIEDENEN SPREIZ-FOLGEN UND ZUM ZUGRIFF AUF DIESELBEN

Title (fr)

PROCEDE ET DISPOSITIF SERVANT A MEMORISER DIFFERENTES SEQUENCES D'ELEMENTS ET A ACCEDER A CES SEQUENCES

Publication

EP 1090465 A1 (EN)

Application

EP 99933343 A

Priority

  • SE 9901078 W
  • US 10277098 A

Abstract (en)

[origin: WO9967895A1] A chip sequence generator (160) stores sequences in a memory (190) having a memory address system. A chip sequence reader uses a memory read address generator (150) to access different phases of the sequences. The reader delivers the different phases to correlators or circuits in a spread spectrum receiver. The memory read address generator generates addresses dependant on a finger select value and a counter value. Each finger select value corresponds to a particular phase of a sequence. The counter value corresponds to a position in time. In sleep mode, the counter value is changed to correspond to the number of clock cycles in a sleep period. The receiver conserves power during sleep and accesses the correct phase of the sequence at wake up. The memory can also store paging sequences. The chip sequence generator generates new sequences as needed and writes them to addresses used to store sequences no longer needed.

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

H04B 1/707

IPC 8 full level (invention and additional information)

H04B 1/707 (2011.01); H04Q 7/38 (2006.01)

CPC (invention and additional information)

H04B 1/7115 (2013.01); H04B 1/709 (2013.01); H04B 1/7117 (2013.01); H04B 2201/70707 (2013.01)

Citation (search report)

See references of WO 9967895A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9967895 A1 19991229; AR 018927 A1 20011212; AU 4941099 A 20000110; BR 9911434 A 20010320; CA 2335742 A1 19991229; CN 1307756 A 20010808; EE 200000777 A 20020415; EP 1090465 A1 20010411; ID 27301 A 20010322; IL 139840 D0 20020210; JP 2002519887 A 20020702; NO 20006509 A 20001220; NO 20006509 D0 20001220; RU 2001101930 A 20021220

INPADOC legal status


2007-01-10 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20060705

2004-05-06 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

2001-04-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001012

2001-04-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE