UY26890A1 - Mejora para sistemas de comunicación que amplia la capacidad de información de los sistemas existentes de transmisión de comunicaciones por medio de técnicas de espectro expandido - Google Patents

Mejora para sistemas de comunicación que amplia la capacidad de información de los sistemas existentes de transmisión de comunicaciones por medio de técnicas de espectro expandido

Info

Publication number
UY26890A1
UY26890A1 UY26890A UY26890A UY26890A1 UY 26890 A1 UY26890 A1 UY 26890A1 UY 26890 A UY26890 A UY 26890A UY 26890 A UY26890 A UY 26890A UY 26890 A1 UY26890 A1 UY 26890A1
Authority
UY
Uruguay
Prior art keywords
systems
expanded spectrum
processes
programming
expands
Prior art date
Application number
UY26890A
Other languages
English (en)
Inventor
Walter S Ciciora
Ted Hartson
Original Assignee
Dotcast Inc
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 Dotcast Inc filed Critical Dotcast Inc
Publication of UY26890A1 publication Critical patent/UY26890A1/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/081—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division the additional information signals being transmitted by means of a subcarrier
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/025—Systems for the transmission of digital non-picture data, e.g. of text during the active part of a television frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/083—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical and the horizontal blanking interval, e.g. MAC data signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70715—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation with application-specific features

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Television Systems (AREA)

Abstract

Sistemas y procesos para incluir trasmisiones de espectro expandido dentro de canales de difusión de televisión y radio sin que se produzca una sustancial degradación de la programación de la difusión. Las trasmisiones de espectro expandido pueden transportar componentes de la misma programación de televisión o radio, pueden ser la propia programación o pueden tener un contenido que no esté relacionado con la programación. Se describen sistemas y procesos para lograr dichas trasmisiones de espectro expandido de una forma que compense la fortaleza de los componentes de la senal variando entre otros el tiempo y/o la frecuencia de las trasmisiones de espectro expandido. También se describen sistemas y procesos para reducir las senales de la onda portadora para compensar los efectos de las trasmisiones de espectro expandido en el canal. Se describen asimismo sistemas y procesos para llevar a cabo dichas trasmisiones en un sistema de comunicaciones celular.
UY26890A 2000-08-15 2001-08-15 Mejora para sistemas de comunicación que amplia la capacidad de información de los sistemas existentes de transmisión de comunicaciones por medio de técnicas de espectro expandido UY26890A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22548300P 2000-08-15 2000-08-15

Publications (1)

Publication Number Publication Date
UY26890A1 true UY26890A1 (es) 2002-02-28

Family

ID=22845053

Family Applications (1)

Application Number Title Priority Date Filing Date
UY26890A UY26890A1 (es) 2000-08-15 2001-08-15 Mejora para sistemas de comunicación que amplia la capacidad de información de los sistemas existentes de transmisión de comunicaciones por medio de técnicas de espectro expandido

Country Status (3)

Country Link
AU (1) AU2001287182A1 (es)
UY (1) UY26890A1 (es)
WO (1) WO2002015428A2 (es)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838444A (en) * 1972-10-30 1974-09-24 Hazeltine Research Inc System for transmitting auxiliary information in low energy density portion of color tv spectrum
EP0208425A3 (en) * 1985-06-13 1988-01-13 Devon County Council Television sub-carrier transmission
US5550579A (en) * 1986-05-14 1996-08-27 Radio Telecom & Technology, Inc. Two-way cable tv conversion system

Also Published As

Publication number Publication date
WO2002015428A2 (en) 2002-02-21
WO2002015428A3 (en) 2002-06-13
AU2001287182A1 (en) 2002-02-25

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Legal Events

Date Code Title Description
109 Application deemed to be withdrawn

Effective date: 20150907