BR9611934B1 - receptor para receber méltiplos sinais superpostos de espectro espalhado e decodificar pelo menos um dos citados sinais. - Google Patents

receptor para receber méltiplos sinais superpostos de espectro espalhado e decodificar pelo menos um dos citados sinais.

Info

Publication number
BR9611934B1
BR9611934B1 BRPI9611934-9A BR9611934A BR9611934B1 BR 9611934 B1 BR9611934 B1 BR 9611934B1 BR 9611934 A BR9611934 A BR 9611934A BR 9611934 B1 BR9611934 B1 BR 9611934B1
Authority
BR
Brazil
Prior art keywords
signals
decode
receiver
spread spectrum
receive multiple
Prior art date
Application number
BRPI9611934-9A
Other languages
English (en)
Other versions
BR9611934A (pt
Inventor
Paul W Dent
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of BR9611934A publication Critical patent/BR9611934A/pt
Publication of BR9611934B1 publication Critical patent/BR9611934B1/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • H04B1/7107—Subtractive interference cancellation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/71—Interference-related aspects the interference being narrowband interference
    • H04B1/7101—Interference-related aspects the interference being narrowband interference with estimation filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Noise Elimination (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
BRPI9611934-9A 1995-12-11 1996-12-10 receptor para receber méltiplos sinais superpostos de espectro espalhado e decodificar pelo menos um dos citados sinais. BR9611934B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/570,431 US5862173A (en) 1995-12-11 1995-12-11 Re-orthogonalization of wideband CDMA signals
PCT/US1996/020023 WO1997022185A2 (en) 1995-12-11 1996-12-10 Re-orthogonalization of wideband cdma signals

Publications (2)

Publication Number Publication Date
BR9611934A BR9611934A (pt) 1999-06-29
BR9611934B1 true BR9611934B1 (pt) 2008-11-18

Family

ID=24279627

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9611934-9A BR9611934B1 (pt) 1995-12-11 1996-12-10 receptor para receber méltiplos sinais superpostos de espectro espalhado e decodificar pelo menos um dos citados sinais.

Country Status (11)

Country Link
US (1) US5862173A (pt)
EP (2) EP0867077B1 (pt)
JP (1) JP3753156B2 (pt)
KR (1) KR100447550B1 (pt)
CN (1) CN1188955C (pt)
AU (1) AU715112B2 (pt)
BR (1) BR9611934B1 (pt)
CA (1) CA2239232C (pt)
DE (2) DE69623988T2 (pt)
SG (1) SG85665A1 (pt)
WO (1) WO1997022185A2 (pt)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6233272B1 (en) * 1996-03-19 2001-05-15 Yrp Mobile Telecommunications Key Technology Research Laboratories Co., Ltd. Spread spectrum communication receiver
GB2314237B (en) * 1996-06-11 2000-12-20 Plextek Ltd Communications system
FI104020B (fi) * 1997-06-23 1999-10-29 Nokia Telecommunications Oy Vastaanottomenetelmä ja vastaanotin
KR100682816B1 (ko) * 1998-01-21 2007-02-15 소니 가부시끼 가이샤 정보 수신 장치 및 정보 수신 방법
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
KR100268227B1 (ko) 1998-09-22 2000-10-16 윤종용 광대역 코드분할 다중접속 시스템의 이진 위상 천이 변조/구적위상 천이 변조 겸용 변조기
US6038271A (en) * 1999-03-02 2000-03-14 Harris Corporation Correlator with cascade data paths to facilitate expansion of correlator length
US6493405B1 (en) 1999-03-02 2002-12-10 Harris Corporation Correlator having enhanced memory for reference and input data
US6438182B1 (en) 1999-03-02 2002-08-20 Harris Corporation Correlator with serial-parallel partition
EP1517436B1 (en) * 1999-10-07 2016-05-04 Parkervision, Inc. Down converter using subsampling
US6934317B1 (en) 2000-10-11 2005-08-23 Ericsson Inc. Systems and methods for communicating spread spectrum signals using variable signal constellations
CA2356077A1 (en) * 2001-08-28 2003-02-28 Sirific Wireless Corporation Improved apparatus and method for down conversion
US7046720B2 (en) * 2001-11-12 2006-05-16 Telefonktiebolaget Lm Ericsson (Publ) System and method for DC offset compensation in a WCDMA receiver
AU2003205477A1 (en) * 2002-02-25 2003-09-09 Sirific Wireless Corporation Frequency down converter using a multitone local oscillator
US20040087296A1 (en) * 2002-10-25 2004-05-06 Gct Semiconductor, Inc. Radio receiver and method for AM suppression and DC-offset removal
EP1630713B1 (en) * 2004-08-24 2020-05-20 Sony Deutschland GmbH Backscatter interrogator reception method and interrogator for a modulated backscatter system
US7502410B2 (en) * 2005-09-30 2009-03-10 Freescale Semiconductor, Inc. Method and system for controlling a notching mechanism
JP2007215100A (ja) * 2006-02-13 2007-08-23 Japan Radio Co Ltd 受信装置
US20090088106A1 (en) * 2007-09-27 2009-04-02 Nanoamp Solutions Inc. (Cayman) Radio frequency filtering
US20140369395A1 (en) * 2013-06-13 2014-12-18 Lsi Corporation Error Detection Based on Superheterodyne Conversion and Direct Downconversion
US10305651B2 (en) * 2014-10-03 2019-05-28 University Of South Florida Superposed signaling for bandwidth efficiency
CN105208565A (zh) * 2015-07-06 2015-12-30 国网天津市电力公司 用于微功率无线的区域覆盖电力通信专网的物理层构架
CN105071999A (zh) * 2015-07-06 2015-11-18 国网天津市电力公司 微功率无线的区域覆盖电力通信专网

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5241702A (en) * 1990-09-06 1993-08-31 Telefonaktiebolaget L M Ericsson D.c. offset compensation in a radio receiver
US5218619A (en) * 1990-12-17 1993-06-08 Ericsson Ge Mobile Communications Holding, Inc. CDMA subtractive demodulation
US5151919A (en) * 1990-12-17 1992-09-29 Ericsson-Ge Mobile Communications Holding Inc. Cdma subtractive demodulation
US5105435A (en) * 1990-12-21 1992-04-14 Motorola, Inc. Method and apparatus for cancelling spread-spectrum noise
US5467367A (en) * 1991-06-07 1995-11-14 Canon Kabushiki Kaisha Spread spectrum communication apparatus and telephone exchange system
US5353352A (en) * 1992-04-10 1994-10-04 Ericsson Ge Mobile Communications Inc. Multiple access coding for radio communications
MX9301888A (es) * 1992-04-10 1993-11-30 Ericsson Telefon Ab L M Acceso multiple de division de tiempo para acceso de un movil en un sistema de acceso multiple de division de codigo.
US5224122A (en) * 1992-06-29 1993-06-29 Motorola, Inc. Method and apparatus for canceling spread-spectrum noise
US5323418A (en) * 1993-01-13 1994-06-21 Motorola, Inc. Code division multiple access (CDMA) inbound messaging system utilizing interference cancellation to recover inbound messages
US5553062A (en) * 1993-04-22 1996-09-03 Interdigital Communication Corporation Spread spectrum CDMA interference canceler system and method
US5546424A (en) * 1993-06-30 1996-08-13 Casio Computer Co., Ltd. Spread spectrum communication system
US5490165A (en) * 1993-10-28 1996-02-06 Qualcomm Incorporated Demodulation element assignment in a system capable of receiving multiple signals
US5414728A (en) * 1993-11-01 1995-05-09 Qualcomm Incorporated Method and apparatus for bifurcating signal transmission over in-phase and quadrature phase spread spectrum communication channels

Also Published As

Publication number Publication date
JP3753156B2 (ja) 2006-03-08
DE69636940D1 (de) 2007-04-12
CA2239232C (en) 2006-02-21
CN1188955C (zh) 2005-02-09
CA2239232A1 (en) 1997-06-19
EP1271797B1 (en) 2007-02-28
CN1208517A (zh) 1999-02-17
WO1997022185A3 (en) 1997-09-18
BR9611934A (pt) 1999-06-29
DE69636940T2 (de) 2007-12-13
US5862173A (en) 1999-01-19
EP1271797A3 (en) 2003-04-16
SG85665A1 (en) 2002-01-15
KR19990072070A (ko) 1999-09-27
DE69623988T2 (de) 2003-04-10
EP0867077A2 (en) 1998-09-30
EP0867077B1 (en) 2002-09-25
EP1271797A2 (en) 2003-01-02
JP2000502226A (ja) 2000-02-22
KR100447550B1 (ko) 2004-10-15
WO1997022185A2 (en) 1997-06-19
DE69623988D1 (de) 2002-10-31
AU715112B2 (en) 2000-01-20
AU1335197A (en) 1997-07-03

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 02/12/2008, OBSERVADAS AS CONDICOES LEGAIS.

B15K Others concerning applications: alteration of classification

Free format text: PROCEDIMENTO AUTOMATICO DE RECLASSIFICACAO. AS CLASSIFICACOES IPC ANTERIORES ERAM: H04B 1/707; H04J 13/00; H04J 13/04.

Ipc: H04B 1/7107 (2011.01), H04J 13/00 (2011.01), H04B

Ipc: H04B 1/7107 (2011.01), H04J 13/00 (2011.01), H04B

B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 02.12.2018