BR9709870A - "transmission system for improved bandwidth compression, complete dupex transmission system for improved bandwidth compression, and, process for improved bandwidth compression" - Google Patents

"transmission system for improved bandwidth compression, complete dupex transmission system for improved bandwidth compression, and, process for improved bandwidth compression"

Info

Publication number
BR9709870A
BR9709870A BR9709870-1A BR9709870A BR9709870A BR 9709870 A BR9709870 A BR 9709870A BR 9709870 A BR9709870 A BR 9709870A BR 9709870 A BR9709870 A BR 9709870A
Authority
BR
Brazil
Prior art keywords
improved bandwidth
bandwidth compression
transmission system
compression
voltage amplitude
Prior art date
Application number
BR9709870-1A
Other languages
Portuguese (pt)
Inventor
Elliot L Gruenberg
Richard B Marsten
Xiaomei Qian
Dhadesugoor R Vaman
Original Assignee
Digital Compression Technology
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 Digital Compression Technology filed Critical Digital Compression Technology
Publication of BR9709870A publication Critical patent/BR9709870A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/143—Two-way operation using the same type of signal, i.e. duplex for modulated signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

"SISTEMA DE TRANSMISSãO PARA MELHORADA COMPRESSãO DE LARGURA DE BANDA, SISTEMA DE TRANSMISSãO DUPLEX COMPLETO PAA MELHORADA COMPRESSãO DE LARGURA DE BANDA, E, PROCESSO PARA MELHORADA COMPRESSãO DE LARGURA DE BANDA". Um melhorado sistema de codificação (figura 1) para compressão digital aplicável como um algoritmo de compressão digital para aumentar a largura de banda de redes de radiodifusão e telecomunicações. O sistema opera em um modo de transmissão, não em uma banda base (fonte) de modo que um canal de transmissão tendo uma capacidade de Mbits/s pode mandar um canal de Nbit/s, onde N bits em paralelo são combinados aos mandados no canal 1 Mbit/s. O sistema inclui as etapas de simultaneamento codificar (2) um primeiro grupo de bits binários paralelos (1a-1d) em um sinal de amplitude de tensão digitalizado em um intervalo de bit pré-determinado, modulando uma portadora com o sinal de amplitude de tensão digitalizado, transmitindo a portadora modulada (figura 2) sobre uma via de comunicação limitada em largura de banda tendo ruído intrínseco no mesmo, desmodulando referido sinal de portadora modulada e recebendo o sinal de amplitude de tensão digitalizado, referido meio de desmodulação (figura 3) substancialmente o referido ruído intrínseco e melhorando a relação sinal de saída ruído, e decodificando (5 figura 1), o sinal de amplitude de tensão digitalizado recebido no intervalo de bit pré-determinado em um segundo grupo de bits binários paralelos que correspondem ao primeiro grupo de bits binários paralelos."TRANSMISSION SYSTEM FOR IMPROVED BANDWIDTH COMPRESSION, COMPLETE DUPLEX TRANSMISSION SYSTEM FOR IMPROVED BANDWIDTH COMPRESSION, AND, PROCESS FOR IMPROVED BANDWIDTH COMPRESSION". An improved encoding system (figure 1) for digital compression applicable as a digital compression algorithm to increase the bandwidth of broadcasting and telecommunications networks. The system operates in a transmission mode, not in a base band (source) so that a transmission channel having a capacity of Mbits / s can send an Nbit / s channel, where N bits in parallel are combined with the mandates in the channel 1 Mbit / s. The system includes the steps of simultaneous encoding (2) a first group of parallel binary bits (1a-1d) in a voltage amplitude signal digitized in a predetermined bit interval, modulating a carrier with the voltage amplitude signal digitized, transmitting the modulated carrier (figure 2) over a bandwidth-limited communication path with intrinsic noise in it, demodulating said modulated carrier signal and receiving the digitized voltage amplitude signal, referred to demodulation means (figure 3) substantially said intrinsic noise and improving the output signal-to-noise ratio, and decoding (5 figure 1), the digitized voltage amplitude signal received in the predetermined bit interval in a second group of parallel binary bits corresponding to the first group of parallel binary bits.

BR9709870-1A 1996-06-19 1997-05-30 "transmission system for improved bandwidth compression, complete dupex transmission system for improved bandwidth compression, and, process for improved bandwidth compression" BR9709870A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66859496A 1996-06-19 1996-06-19
PCT/US1997/009374 WO1997049216A1 (en) 1996-06-19 1997-05-30 Improved coding system for digital transmission compression

Publications (1)

Publication Number Publication Date
BR9709870A true BR9709870A (en) 2000-01-11

Family

ID=24682977

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9709870-1A BR9709870A (en) 1996-06-19 1997-05-30 "transmission system for improved bandwidth compression, complete dupex transmission system for improved bandwidth compression, and, process for improved bandwidth compression"

Country Status (7)

Country Link
EP (1) EP0906681A4 (en)
JP (1) JP2002503403A (en)
AU (1) AU3292997A (en)
BR (1) BR9709870A (en)
CA (1) CA2258682A1 (en)
RU (1) RU2181526C2 (en)
WO (1) WO1997049216A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10114159C2 (en) * 2001-03-22 2003-09-11 Infineon Technologies Ag Method and device for data transmission
RU2510930C1 (en) * 2012-12-03 2014-04-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Уральский государственный университет путей сообщения" (УрГУПС) Method of transmitting information signals and apparatus for realising said method
WO2015139260A1 (en) * 2014-03-20 2015-09-24 华为技术有限公司 Compressive sensing-based signal processing method and device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4601046A (en) * 1984-05-15 1986-07-15 Halpern Peter H System for transmitting data through a troposcatter medium
US4805216A (en) * 1987-01-08 1989-02-14 Compfax Corporation Method and apparatus for continuously acknowledged link encrypting
US4881241A (en) * 1988-02-24 1989-11-14 Centre National D'etudes Des Telecommunications Method and installation for digital communication, particularly between and toward moving vehicles
US5095497A (en) * 1989-10-02 1992-03-10 At & T Bell Laboratories Technique for achieving the full coding gain of encoded digital signals

Also Published As

Publication number Publication date
WO1997049216A1 (en) 1997-12-24
AU3292997A (en) 1998-01-07
RU2181526C2 (en) 2002-04-20
JP2002503403A (en) 2002-01-29
EP0906681A1 (en) 1999-04-07
EP0906681A4 (en) 2002-10-16
CA2258682A1 (en) 1997-12-24

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Legal Events

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B08F Application fees: dismissal - article 86 of industrial property law

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B08K Lapse as no evidence of payment of the annual fee has been furnished to inpi (acc. art. 87)

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