FR3131150B1 - Method and device for quickly searching for digital radio stations - Google Patents

Method and device for quickly searching for digital radio stations Download PDF

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Publication number
FR3131150B1
FR3131150B1 FR2113818A FR2113818A FR3131150B1 FR 3131150 B1 FR3131150 B1 FR 3131150B1 FR 2113818 A FR2113818 A FR 2113818A FR 2113818 A FR2113818 A FR 2113818A FR 3131150 B1 FR3131150 B1 FR 3131150B1
Authority
FR
France
Prior art keywords
digital signal
frequency
radio stations
signal
digital radio
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.)
Active
Application number
FR2113818A
Other languages
French (fr)
Other versions
FR3131150A1 (en
Inventor
Chao Lin
Grégoire Hivert
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.)
Continental Automotive GmbH
Original Assignee
Continental Automotive GmbH
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 Continental Automotive GmbH filed Critical Continental Automotive GmbH
Priority to FR2113818A priority Critical patent/FR3131150B1/en
Priority to PCT/EP2022/083083 priority patent/WO2023110348A1/en
Publication of FR3131150A1 publication Critical patent/FR3131150A1/en
Application granted granted Critical
Publication of FR3131150B1 publication Critical patent/FR3131150B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
    • H04H60/38—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space
    • H04H60/41—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
    • H03J1/0058—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor provided with channel identification means
    • H03J1/0066—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor provided with channel identification means with means for analysing the received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H2201/00—Aspects of broadcast communication
    • H04H2201/10—Aspects of broadcast communication characterised by the type of broadcast system
    • H04H2201/18—Aspects of broadcast communication characterised by the type of broadcast system in band on channel [IBOC]

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

L’invention concerne un procédé de recherche de stations radio diffusées conformément à un standard CDR, comprenant des étapes de syntonisation (300) sur une fréquence, d’acquisition (301) d’un signal en bande de base diffusé sur ladite fréquence, de division (303) du spectre du signal acquis en N sous-bandes (LN/2, …, L1, R1, ..., RN/2) de 50 KHz, également réparties de part et d’autre de la fréquence syntonisée, de détermination (304) qu’un signal numérique est présent ou absent par détection d’une répartition particulière de la puissance du signal acquis dans les sous-bandes définies (LN/2, …, L1, R1, ..., RN/2), et lorsqu’il est déterminé qu’un signal numérique est présent, de détection (306) d’un code de synchronisation et décodage du signal numérique, et lorsqu’il est déterminé qu’un signal numérique est absent, syntonisation (300) sur une fréquence suivante. Figure 3.The invention relates to a method for searching for radio stations broadcast in accordance with a CDR standard, comprising steps of tuning (300) to a frequency, acquiring (301) a baseband signal broadcast on said frequency, division (303) of the spectrum of the acquired signal into N sub-bands (LN/2, ..., L1, R1, ..., RN/2) of 50 KHz, equally distributed on either side of the tuned frequency, determining (304) that a digital signal is present or absent by detecting a particular distribution of the power of the acquired signal in the defined sub-bands (LN/2, …, L1, R1, ..., RN/ 2), and when it is determined that a digital signal is present, detecting (306) a synchronization code and decoding the digital signal, and when it is determined that a digital signal is absent, tuning ( 300) on a following frequency. Figure 3.

FR2113818A 2021-12-17 2021-12-17 Method and device for quickly searching for digital radio stations Active FR3131150B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR2113818A FR3131150B1 (en) 2021-12-17 2021-12-17 Method and device for quickly searching for digital radio stations
PCT/EP2022/083083 WO2023110348A1 (en) 2021-12-17 2022-11-24 Method and device for quickly searching for digital radio stations

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2113818 2021-12-17
FR2113818A FR3131150B1 (en) 2021-12-17 2021-12-17 Method and device for quickly searching for digital radio stations

Publications (2)

Publication Number Publication Date
FR3131150A1 FR3131150A1 (en) 2023-06-23
FR3131150B1 true FR3131150B1 (en) 2024-07-05

Family

ID=80735533

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2113818A Active FR3131150B1 (en) 2021-12-17 2021-12-17 Method and device for quickly searching for digital radio stations

Country Status (2)

Country Link
FR (1) FR3131150B1 (en)
WO (1) WO2023110348A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4076912B2 (en) * 2003-06-10 2008-04-16 アルパイン株式会社 IBOC broadcast receiver
JP4488983B2 (en) * 2005-08-24 2010-06-23 富士通テン株式会社 Radio receiver and reception method
US7933367B2 (en) * 2007-06-04 2011-04-26 Ibiquity Digital Corporation Method and apparatus for implementing seek and scan functions for an FM digital radio signal
KR102277569B1 (en) * 2021-03-02 2021-07-14 주식회사 알에프투디지털 Fast detection and synchronization method of Convergence Digital Radio signal

Also Published As

Publication number Publication date
FR3131150A1 (en) 2023-06-23
WO2023110348A1 (en) 2023-06-22

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Year of fee payment: 2

PLSC Publication of the preliminary search report

Effective date: 20230623

PLFP Fee payment

Year of fee payment: 3