BR9816143A - Modulação digital empregando banda adjacente única com portadora cortada - Google Patents

Modulação digital empregando banda adjacente única com portadora cortada

Info

Publication number
BR9816143A
BR9816143A BR9816143-1A BR9816143A BR9816143A BR 9816143 A BR9816143 A BR 9816143A BR 9816143 A BR9816143 A BR 9816143A BR 9816143 A BR9816143 A BR 9816143A
Authority
BR
Brazil
Prior art keywords
carrier
temporal
bit
digital
adjacent band
Prior art date
Application number
BR9816143-1A
Other languages
English (en)
Inventor
Harold Walker
Original Assignee
Harold Walker
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 Harold Walker filed Critical Harold Walker
Publication of BR9816143A publication Critical patent/BR9816143A/pt

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00—Conversion of the form of the representation of individual digits
    • H03M5/02—Conversion to or from representation by pulses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/493—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems by transition coding, i.e. the time-position or direction of a transition being encoded before transmission
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00—Conversion of the form of the representation of individual digits
    • H03M5/02—Conversion to or from representation by pulses
    • H03M5/04—Conversion to or from representation by pulses the pulses having two levels
    • H03M5/06—Code representation, e.g. transition, for a given bit cell depending only on the information in that bit cell
    • H03M5/08—Code representation by pulse width
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00—Conversion of the form of the representation of individual digits
    • H03M5/02—Conversion to or from representation by pulses
    • H03M5/04—Conversion to or from representation by pulses the pulses having two levels
    • H03M5/06—Code representation, e.g. transition, for a given bit cell depending only on the information in that bit cell
    • H03M5/12—Biphase level code, e.g. split phase code, Manchester code; Biphase space or mark code, e.g. double frequency code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4904—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using self-synchronising codes, e.g. split-phase codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • 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
    • H04L27/2021—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change per symbol period is not constrained
    • H04L27/2025—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change per symbol period is not constrained in which the phase changes in a piecewise linear manner within each symbol period

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Dc Digital Transmission (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

"MODULAçãO DIGITAL EMPREGANDO BANDA ADJACENTE úNICA COM PORTADORA SUPRIMIDA". A presente invenção se refere a um método para transmissão "bifásica" de sinais digitais codificados, que gera um sinal digital de banda de base derivado de uma multiplicidade de bits de dados de entrada. Cada bit de dados de entrada é caracterizado por uma extensão de bit de dados temporal, um bit central temporal e um estado indicativo temporal de um lógico 1 ou 0. O método de codificação compreende as etapas de receber um da multiplicidade de bits de dados de entrada e gerar um sinal digital de banda de base codificado, caracterizado por um estado temporal indicativo de um estado lógico, cujo sinal digital de banda de base codificado modifica seu estado temporal em um tempo anterior ou posterior ao bit central temporal. Uma base adjacente única com essa codificação é gerada independentemente por síntese digital e é transmitida através de linhas condutoras ou canais de radiofreq³ência, para detecção através de um circuito detector. A detecção não requer a reinserção da portadora. As características da banda adjacente individual são reproduzíveis por meio de um sintetizador digital contínuo. Embora o sinal possa ser detectado por meios normais, isto é, mediante reconstrução da portadora e reinserção da mesma no detector para recuperar a sinal de banda de base codificado, isso não é necessário. Existe suficiente informação na banda de base individual para ser detectada sem a presença de uma portadora.
BR9816143-1A 1997-11-03 1998-10-30 Modulação digital empregando banda adjacente única com portadora cortada BR9816143A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/963,237 US5930303A (en) 1996-11-04 1997-11-03 Digital modulation employing single sideband with suppressed carrier
PCT/US1998/023140 WO1999023754A1 (en) 1997-11-03 1998-10-30 Digital modulation employing single sideband with suppressed carrier

Publications (1)

Publication Number Publication Date
BR9816143A true BR9816143A (pt) 2002-04-09

Family

ID=25506957

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9816143-1A BR9816143A (pt) 1997-11-03 1998-10-30 Modulação digital empregando banda adjacente única com portadora cortada

Country Status (14)

Country Link
US (1) US5930303A (pt)
EP (1) EP1027768A1 (pt)
JP (1) JP2001522186A (pt)
KR (1) KR20010031763A (pt)
CN (1) CN1285972A (pt)
AU (1) AU1293599A (pt)
BR (1) BR9816143A (pt)
CA (1) CA2308064A1 (pt)
HU (1) HUP0101472A3 (pt)
IL (1) IL135917A0 (pt)
NO (1) NO20002329L (pt)
RU (1) RU2000114241A (pt)
TR (1) TR200001208T2 (pt)
WO (1) WO1999023754A1 (pt)

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US5963595A (en) * 1997-09-08 1999-10-05 Tut Systems, Inc. Method and apparatus for encoding and decoding a bit sequence for transmission over POTS wiring
US7079584B2 (en) 1998-08-10 2006-07-18 Kamilo Feher OFDM, CDMA, spread spectrum, TDMA, cross-correlated and filtered modulation
US8050345B1 (en) 1999-08-09 2011-11-01 Kamilo Feher QAM and GMSK systems
US7548787B2 (en) 2005-08-03 2009-06-16 Kamilo Feher Medical diagnostic and communication system
US6470055B1 (en) * 1998-08-10 2002-10-22 Kamilo Feher Spectrally efficient FQPSK, FGMSK, and FQAM for enhanced performance CDMA, TDMA, GSM, OFDN, and other systems
US6678321B1 (en) 1998-09-15 2004-01-13 Tut Systems, Inc. Method and apparatus for transmitting and receiving a symbol over pots wiring using a multi-cycle waveform
US9373251B2 (en) 1999-08-09 2016-06-21 Kamilo Feher Base station devices and automobile wireless communication systems
US7260369B2 (en) 2005-08-03 2007-08-21 Kamilo Feher Location finder, tracker, communication and remote control system
US9813270B2 (en) 1999-08-09 2017-11-07 Kamilo Feher Heart rate sensor and medical diagnostics wireless devices
US9307407B1 (en) 1999-08-09 2016-04-05 Kamilo Feher DNA and fingerprint authentication of mobile devices
AU2001229568A1 (en) * 2000-01-18 2001-07-31 Harold Walker A method and apparatus for improved cellular telephone communications
US6775323B1 (en) 2000-02-25 2004-08-10 National University Of Singapore Data coding system
US6937664B1 (en) * 2000-07-18 2005-08-30 Integrated Memory Logic, Inc. System and method for multi-symbol interfacing
US6862317B1 (en) 2000-07-25 2005-03-01 Thomson Licensing S.A. Modulation technique providing high data rate through band limited channels
US6512799B2 (en) 2001-02-06 2003-01-28 University Of South Alabama Digital communication system and method for increased bit rates
US20040096021A1 (en) * 2002-11-14 2004-05-20 Unb Technologies, Inc. Communications methods for narrow band demodulation
US20040096010A1 (en) * 2002-11-14 2004-05-20 Unb Technologies Inc. Communications system including a narrow band modulator
US20040109497A1 (en) * 2002-11-14 2004-06-10 Unb Technologies, Inc. Communications system including a narrow band demodulator
US7359449B2 (en) * 2004-10-05 2008-04-15 Kamilo Feher Data communication for wired and wireless communication
US7421004B2 (en) * 2004-10-05 2008-09-02 Kamilo Feher Broadband, ultra wideband and ultra narrowband reconfigurable interoperable systems
US7269230B2 (en) * 2004-11-08 2007-09-11 Photron Research And Development Pte Ltd. Systems and methods for designing a high-precision narrowband digital filter for use in a communications system with high spectral efficiency
US7336723B2 (en) * 2004-11-08 2008-02-26 Photron Research And Development Pte Ltd. Systems and methods for high-efficiency transmission of information through narrowband channels
TW200631361A (en) * 2004-11-08 2006-09-01 Photron Res & Dev Pte Ltd Systems and methods for high-efficiency transmission of information through narrowband channels
JP2006303663A (ja) * 2005-04-18 2006-11-02 Nec Electronics Corp 光結合型絶縁回路
US7280810B2 (en) 2005-08-03 2007-10-09 Kamilo Feher Multimode communication system
US10009956B1 (en) 2017-09-02 2018-06-26 Kamilo Feher OFDM, 3G and 4G cellular multimode systems and wireless mobile networks
CN101673336B (zh) * 2008-09-12 2012-05-23 晨星软件研发(深圳)有限公司 译码装置及译码方法
US20100183053A1 (en) * 2009-01-20 2010-07-22 Tran Duke H System and apparatus for data transmission
US11876659B2 (en) 2017-10-27 2024-01-16 Terawave, Llc Communication system using shape-shifted sinusoidal waveforms
MX2020004321A (es) 2017-10-27 2020-08-03 Terawave Llc Receptor para sistema de comunicaciones de datos de alta eficiencia espectral utilizando formas de onda sinusoidales codificadas.
CN108040022B (zh) * 2017-12-25 2023-12-29 中天启明石油技术有限公司 一种用于随钻测量仪器的总线编解码装置及方法
RU2770420C1 (ru) * 2021-05-25 2022-04-18 Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский автомобильно-дорожный государственный технический университет (МАДИ)" Способ кодирования цифровой информации в радиоканале

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Also Published As

Publication number Publication date
WO1999023754A1 (en) 1999-05-14
CN1285972A (zh) 2001-02-28
TR200001208T2 (tr) 2000-08-21
KR20010031763A (ko) 2001-04-16
RU2000114241A (ru) 2002-05-27
HUP0101472A2 (hu) 2001-09-28
NO20002329D0 (no) 2000-05-03
CA2308064A1 (en) 1999-05-14
JP2001522186A (ja) 2001-11-13
EP1027768A1 (en) 2000-08-16
AU1293599A (en) 1999-05-24
NO20002329L (no) 2000-06-28
HUP0101472A3 (en) 2002-05-28
IL135917A0 (en) 2001-05-20
US5930303A (en) 1999-07-27

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]