ES2044536T3 - Generador de perfiles de onda. - Google Patents

Generador de perfiles de onda.

Info

Publication number
ES2044536T3
ES2044536T3 ES90850072T ES90850072T ES2044536T3 ES 2044536 T3 ES2044536 T3 ES 2044536T3 ES 90850072 T ES90850072 T ES 90850072T ES 90850072 T ES90850072 T ES 90850072T ES 2044536 T3 ES2044536 T3 ES 2044536T3
Authority
ES
Spain
Prior art keywords
stores
unit
theta
sct
bhr
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES90850072T
Other languages
English (en)
Inventor
Bjorn Olof Peter Ekelund
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 by Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of ES2044536T3 publication Critical patent/ES2044536T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2003—Modulator circuits; Transmitter circuits for continuous phase modulation
    • H04L27/2007—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained
    • H04L27/2017—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained in which the phase changes are non-linear, e.g. generalized and Gaussian minimum shift keying, tamed frequency modulation

Landscapes

  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Electrotherapy Devices (AREA)
  • Peptides Or Proteins (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Holo Graphy (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Amplitude Modulation (AREA)
  • Details Of Television Scanning (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Saccharide Compounds (AREA)

Abstract

UN GENERADOR EN FORMA DE ONDA INCORPORADO EN UN TRANSMISOR RADIO DEL TIPO DE CUADRATURA PARA MODULACION EN FASE CONTINUA BINARIA (CPM). SE LE CONOCE PREVIAMENTE PARA ALMACENAR LAS FORMAS DE ONDA DE LOS DOS CANALES L Y Q DE CUADRATURA, EN DOS UNIDADES DE TABLA DIRECCIONABLES, EN LAS QUE LA UNIDAD UNO ALMACENA EL SEN DE P Y LA UNIDAD ALMACENA EL COS P, DONDE P ES EL ANGULO DE FASE. LAS UNIDADES DE TABLA SE DIRECCIONAN POR MEDIO DE UN REGISTRO DE HISTORIA DE BIT (BHR) QUE ALMACENA LA FASE INSTANTANEA, Y UNA MEMORIA DE CUADRANTE QUE ALMACENA LA FASE ACUMULADA. DE ACUERDO AL INVENTO, LAS DOS UNIDADES DE TABLA SE SUSTITUYEN CON UNA UNIDAD DE TABLA UNICA (SCT) QUE ALMACENA SEGMENTOS EN CURVA (A-H) SOLAMENTE PARA UNA DE LAS FORMAS DE ONDA SEN P O COS P. LA UNIDAD DE TABLA (SCT) SE DIRECCIONA POR MEDIO DE UNA CONVERSION DE DIRECCION (ADR) ENTRE LA MEMORIA DE REGISTRO/CUADRANTE DE HISTORIA DE BIT (BHR Y QM RESPECTIVAMENTE) Y LA UNIDAD DE TABLA (SCT). EL GENERADOR INCLUYE IGUALMENTE UNA UNIDAD DE NEGACION CONTROLABLE (NP) Y UN CIRCUITO DE ENGANCHE (LS) CORRIENTE ARRIBA DE LOS ADAPTADORES D/A (DA1,DA2) Y LOS CIRCUITOS DEL MODULADOR (M1,M2,ADD) DEL TRANSMISOR.
ES90850072T 1989-03-13 1990-02-20 Generador de perfiles de onda. Expired - Lifetime ES2044536T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8900883A SE463390B (sv) 1989-03-13 1989-03-13 Vaagformsgenerator

Publications (1)

Publication Number Publication Date
ES2044536T3 true ES2044536T3 (es) 1994-01-01

Family

ID=20375326

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90850072T Expired - Lifetime ES2044536T3 (es) 1989-03-13 1990-02-20 Generador de perfiles de onda.

Country Status (17)

Country Link
EP (1) EP0388381B1 (es)
JP (1) JPH03504675A (es)
CN (1) CN1045902A (es)
AT (1) ATE95360T1 (es)
AU (1) AU619398B2 (es)
DE (1) DE69003564T2 (es)
DK (1) DK0388381T3 (es)
ES (1) ES2044536T3 (es)
FI (1) FI905562A0 (es)
HK (1) HK66894A (es)
IE (1) IE62929B1 (es)
MY (1) MY105264A (es)
NO (1) NO301920B1 (es)
NZ (1) NZ232485A (es)
PT (1) PT93422B (es)
SE (1) SE463390B (es)
WO (1) WO1990010986A1 (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5237324A (en) * 1991-09-04 1993-08-17 Advanced Micro Devices, Inc. System and method for producing baseband analog modulation signals
US5784402A (en) 1995-01-09 1998-07-21 Kamilo Feher FMOD transceivers including continuous and burst operated TDMA, FDMA, spread spectrum CDMA, WCDMA and CSMA
JPH10501674A (ja) * 1995-04-03 1998-02-10 モトローラ・インコーポレーテッド マルチアクセスアップコンバータ／変調器および方法
FR2746562B1 (fr) * 1996-03-22 1998-06-05 Thomson Csf Emetteur de signaux de radiophonie digitale
KR100239169B1 (ko) * 1996-04-04 2000-01-15 윤종용 파이/n 쉬프티트 n차분위상쉬프트키잉 변조신호 발생장치
US6865170B1 (en) 1997-06-19 2005-03-08 Idt Corporation Metropolitan wide area network
WO1999003302A1 (en) 1997-07-09 1999-01-21 Winstar Communications, Inc. A wireless system for providing symmetrical, bidirectional broadband telecommunications and multimedia services employing a computer-controlled radio system
US6757268B1 (en) 1997-07-21 2004-06-29 Winstar Corporation Metropolitan wide area network
FR2777145B1 (fr) * 1998-04-02 2000-04-28 Alsthom Cge Alcatel Modulateur multiporteuses large bande et procede de programmation correspondant
US7065157B2 (en) * 2003-03-11 2006-06-20 Qualcomm Inc. GMSK modulation techniques
CN101710136B (zh) * 2009-11-26 2011-08-17 电子科技大学 一种序列波形发生器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7709917A (nl) * 1977-09-09 1979-03-13 Philips Nv Systeem voor datatransmissie met behulp van een hoekgemoduleerde draaggolf van constante amplitude.
CH670178A5 (es) * 1986-06-24 1989-05-12 Bbc Brown Boveri & Cie

Also Published As

Publication number Publication date
JPH03504675A (ja) 1991-10-09
IE62929B1 (en) 1995-03-08
NO904756D0 (no) 1990-11-01
NZ232485A (en) 1992-04-28
PT93422B (pt) 1996-01-31
EP0388381A1 (en) 1990-09-19
MY105264A (en) 1994-09-30
SE8900883D0 (sv) 1989-03-13
SE8900883L (sv) 1990-09-14
CN1045902A (zh) 1990-10-03
NO301920B1 (no) 1997-12-22
DK0388381T3 (da) 1994-02-07
EP0388381B1 (en) 1993-09-29
DE69003564D1 (de) 1993-11-04
PT93422A (pt) 1990-11-07
SE463390B (sv) 1990-11-12
AU619398B2 (en) 1992-01-23
ATE95360T1 (de) 1993-10-15
DE69003564T2 (de) 1994-02-10
NO904756L (no) 1990-11-01
HK66894A (en) 1994-07-22
FI905562A0 (fi) 1990-11-09
WO1990010986A1 (en) 1990-09-20
AU5337190A (en) 1990-10-09
IE900641L (en) 1990-09-13

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