MX9709127A - Sistema de difusion de datos. - Google Patents

Sistema de difusion de datos.

Info

Publication number
MX9709127A
MX9709127A MX9709127A MX9709127A MX9709127A MX 9709127 A MX9709127 A MX 9709127A MX 9709127 A MX9709127 A MX 9709127A MX 9709127 A MX9709127 A MX 9709127A MX 9709127 A MX9709127 A MX 9709127A
Authority
MX
Mexico
Prior art keywords
audio
broadcasting system
data broadcasting
human ear
band
Prior art date
Application number
MX9709127A
Other languages
English (en)
Other versions
MXPA97009127A (es
Inventor
Patrice Bourcet
Denis Masse
Bruno Jahan
Original Assignee
Telediffusion Fse
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 Telediffusion Fse filed Critical Telediffusion Fse
Publication of MX9709127A publication Critical patent/MX9709127A/es
Publication of MXPA97009127A publication Critical patent/MXPA97009127A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
    • H04H20/30—Arrangements for simultaneous broadcast of plural pieces of information by a single channel
    • H04H20/31—Arrangements for simultaneous broadcast of plural pieces of information by a single channel using in-band signals, e.g. subsonic or cue signal
    • 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
    • H04B1/66—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 for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/665—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 for reducing bandwidth of signals; for improving efficiency of transmission using psychoacoustic properties of the ear, e.g. masking effect

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Television Systems (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

La invencion se refiere a un sistema de difusion de datos (D), esas informaciones son transmitidas en la banda pasante de una señal audiofrecuencial (S) difundida, caracterizada en que incluye los medios de determinacion en por lo menos una banda de frecuencia (F'13,...,F'24) de la amplitud (A'13,...,A'24) de la señal de radiofrecuencia (S) y en comparacion de esta amplitud con un nivel de ocultacion auditivo Nm(13),...,Nm(24))asociado a esta banda de frecuencia, los medios de eliminacion de los componentes de frecuencia de la señal audiofrecuencial en dicha banda de frecuencia si la amplitud de las señal es inferior al nivel de ocultacion auditivo de dicha banda, y los medios de insercion de dichos datos en esta banda de frecuencia a un nivel inferior o igual al nivel de ocultacion auditivo de dicha banda de frecuencia.
MXPA/A/1997/009127A 1995-06-02 1997-11-26 Sistema de difusion de datos MXPA97009127A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR95/06727 1995-06-02
FR9506727A FR2734977B1 (fr) 1995-06-02 1995-06-02 Systeme de diffusion de donnees.
FR9506727 1995-06-02

Publications (2)

Publication Number Publication Date
MX9709127A true MX9709127A (es) 1998-08-30
MXPA97009127A MXPA97009127A (es) 1998-11-12

Family

ID=

Also Published As

Publication number Publication date
AU702731B2 (en) 1999-03-04
WO1996038927A1 (fr) 1996-12-05
CA2222198C (fr) 2007-09-25
FR2734977A1 (fr) 1996-12-06
PL179960B1 (pl) 2000-11-30
TR199701496T1 (xx) 1998-03-21
EP0829145A1 (fr) 1998-03-18
AU6228796A (en) 1996-12-18
BR9608865A (pt) 1999-06-15
DE69601465T2 (de) 1999-06-10
FR2734977B1 (fr) 1997-07-25
US6151578A (en) 2000-11-21
JP3033193B2 (ja) 2000-04-17
PL323534A1 (en) 1998-03-30
JPH10507054A (ja) 1998-07-07
EP0829145B1 (fr) 1999-01-27
DE69601465D1 (de) 1999-03-11
CA2222198A1 (fr) 1996-12-05
ES2129975T3 (es) 1999-06-16

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Legal Events

Date Code Title Description
FA Abandonment or withdrawal