FR2757725B1 - Procede hierarchique de transmission et de radiodiffusion numerique d'emission radiophoniques - Google Patents

Procede hierarchique de transmission et de radiodiffusion numerique d'emission radiophoniques

Info

Publication number
FR2757725B1
FR2757725B1 FR9615743A FR9615743A FR2757725B1 FR 2757725 B1 FR2757725 B1 FR 2757725B1 FR 9615743 A FR9615743 A FR 9615743A FR 9615743 A FR9615743 A FR 9615743A FR 2757725 B1 FR2757725 B1 FR 2757725B1
Authority
FR
France
Prior art keywords
transmission
digital broadcasting
radio transmissions
hierarchical method
hierarchical
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
FR9615743A
Other languages
English (en)
Other versions
FR2757725A1 (fr
Inventor
Cedric Demeure
Pierre Andre Laurent
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR9615743A priority Critical patent/FR2757725B1/fr
Publication of FR2757725A1 publication Critical patent/FR2757725A1/fr
Application granted granted Critical
Publication of FR2757725B1 publication Critical patent/FR2757725B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/2604—Multiresolution systems
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/26035—Maintenance of orthogonality, e.g. for signals exchanged between cells or users, or by using covering codes or sequences
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
FR9615743A 1996-12-20 1996-12-20 Procede hierarchique de transmission et de radiodiffusion numerique d'emission radiophoniques Expired - Lifetime FR2757725B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9615743A FR2757725B1 (fr) 1996-12-20 1996-12-20 Procede hierarchique de transmission et de radiodiffusion numerique d'emission radiophoniques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9615743A FR2757725B1 (fr) 1996-12-20 1996-12-20 Procede hierarchique de transmission et de radiodiffusion numerique d'emission radiophoniques

Publications (2)

Publication Number Publication Date
FR2757725A1 FR2757725A1 (fr) 1998-06-26
FR2757725B1 true FR2757725B1 (fr) 2001-10-05

Family

ID=9498920

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9615743A Expired - Lifetime FR2757725B1 (fr) 1996-12-20 1996-12-20 Procede hierarchique de transmission et de radiodiffusion numerique d'emission radiophoniques

Country Status (1)

Country Link
FR (1) FR2757725B1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2784822A1 (fr) * 1998-10-16 2000-04-21 Motorola Inc Systeme de telecommunications, recepteur radio associe et procede de reception
SE515837C2 (sv) 1999-01-22 2001-10-15 Ericsson Telefon Ab L M Adapterbar bandbredd
DE19918829A1 (de) * 1999-04-22 2000-10-26 Deutsche Telekom Ag Verfahren zur Qualitätskontrolle für digitale Rundfunkübertragung im Mittel- und Kurzwellenbereich

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4425642A (en) * 1982-01-08 1984-01-10 Applied Spectrum Technologies, Inc. Simultaneous transmission of two information signals within a band-limited communications channel
FR2639495B1 (fr) * 1988-11-18 1993-12-17 Etat Francais Cnet Procede de diffusion de donnees numeriques, notamment pour la radiodiffusion a haut debit vers des mobiles, a entrelacement temps-frequence et synchronisation analogique
FR2660137B1 (fr) * 1990-03-23 1994-02-04 Etat Francais Cnet Procede de diffusion flexible de sequences d'images vers des mobiles, et recepteur correspondant.
US5588022A (en) * 1994-03-07 1996-12-24 Xetron Corp. Method and apparatus for AM compatible digital broadcasting
FR2721461B1 (fr) * 1994-06-16 1996-09-06 France Telecom Signal formé d'une pluralité de fréquences porteuses orthogonales organisé de façon à simplifier la réception d'un des signaux source le composant, procédé d'émission et récepteur correspondants.

Also Published As

Publication number Publication date
FR2757725A1 (fr) 1998-06-26

Similar Documents

Publication Publication Date Title
DE69840564D1 (de) Informationsübertragungsverfahren und fernsehempfänger
EP0715456A3 (fr) Récepteur de télévision et procédé de sélection de la chaîne de radiodiffusion
GB2325363B (en) Frequency searching method and digital broadcast receiver
FI982715A0 (fi) Menetelmä ja radiojärjestelmä digitaalisen signaalin siirtoon
AU1704900A (en) System and method for determining the audience of digital radio programmes broadcast through the internet
IL120569A (en) Transmission system for digital audio broadcasting
HUP0101257A3 (en) System for broadcast transmission of media objects
AU5802498A (en) Internet multiplexer for broadcast and other information
SG70674A1 (en) Digital broadcast receiving and reproducing apparatus
HK1027931A1 (en) Digital broadcast method
IL120568A0 (en) Transmission system for digital audio broadcasting
AU2795299A (en) Method and apparatus for am digital broadcasting
DE69427847D1 (de) Mittelfrequenzrundfunkübertragungssystem
IL120570A0 (en) Transmission system for digital audio broadcasting
PL332953A1 (en) Method of and system for message broadcasting
GB9702491D0 (en) Digital broadcast receiver, and method of tuning control
EP0923033A4 (fr) Procede de transmission d'informations et emetteur d'informations
DE69124912D1 (de) Automatische Übertragungssysteme zur Fernseh- und Rundfunkübertragung
FR2632148B1 (fr) Procede de diffusion et de reception de messages de gestion de titres d'acces
GB2324426B (en) Downloading apparatus and method thereof for digital broadcast receiver
FR2746264B1 (fr) Procede de fabrication d'un entoilage thermocollant et entoilage thermocollant ainsi obtenu
FR2757725B1 (fr) Procede hierarchique de transmission et de radiodiffusion numerique d'emission radiophoniques
EP0667470A3 (fr) Levier de changement de vitesse et procédé d'assemblage associé.
FR2752501B1 (fr) Procede et dispositif de transmission par radiodiffusion
GB2287384B (en) Digital broadcast systems for local transmissions

Legal Events

Date Code Title Description
CD Change of name or company name
CA Change of address
TP Transmission of property
PLFP Fee payment

Year of fee payment: 20