WO2000057586A2 - Signaux de radiodiffusion - Google Patents

Signaux de radiodiffusion Download PDF

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Publication number
WO2000057586A2
WO2000057586A2 PCT/GB2000/001025 GB0001025W WO0057586A2 WO 2000057586 A2 WO2000057586 A2 WO 2000057586A2 GB 0001025 W GB0001025 W GB 0001025W WO 0057586 A2 WO0057586 A2 WO 0057586A2
Authority
WO
WIPO (PCT)
Prior art keywords
time
information
signal
variable
broadcast
Prior art date
Application number
PCT/GB2000/001025
Other languages
English (en)
Other versions
WO2000057586A3 (fr
Inventor
William Stanley Poel
Original Assignee
Enformatica Limited
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 Enformatica Limited filed Critical Enformatica Limited
Priority to AU33077/00A priority Critical patent/AU3307700A/en
Publication of WO2000057586A2 publication Critical patent/WO2000057586A2/fr
Publication of WO2000057586A3 publication Critical patent/WO2000057586A3/fr

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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
    • 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
    • H04H60/68—Systems specially adapted for using specific information, e.g. geographical or meteorological information
    • H04H60/73—Systems specially adapted for using specific information, e.g. geographical or meteorological information using meta-information
    • H04H60/74—Systems specially adapted for using specific information, e.g. geographical or meteorological information using meta-information using programme related information, e.g. title, composer or interpreter

Definitions

  • This invention relates to methods of identifying components of broadcast signals.
  • This invention further relates to apparatus for storing items of information identified from broadcast signals.
  • Music is widely broadcast so that people can listen to it whist undertaking various activities, quite apart from when people deliberately set out to listen to various works, such as may be the case at a concert.
  • the music may be broadcast in an immediately audible form, such as from loudspeakers so that anyone in the vicinity of the loudspeakers can hear it, or it may be broadcast electronically, optically or with electro-magnetic radiation, for reception, decoding and driving a suitable transducer having an audio output which again can be heard by someone in the vicinity of the transducer.
  • examples of electronic broadcasting include the dissemination along wires of electronic signals suitably modulated with audio data, of optical broadcasting the transmission of optical signals along optical fibres or the dissemination of infra-red signals in either case modulated with audio data, and of electromagnetic radiation broadcasting the dissemination of radio-frequency signals modulated with audio data; in each of these cases a suitable receiver is required to recover the audio data from the broadcast signal.
  • the audio content of a broadcast music signal is time-variable, firstly from moment to moment consequent upon the music itself and secondly from one time period to another dependent upon the program material being broadcast - that is, the work and version (i.e. the artist, group, band or orchestra performing and the particular recording) being broadcast.
  • the present invention is concerned with identifying the latter.
  • a method of identifying a time-variable component of a broadcast signal comprising encoding on the broadcast signal time-variable information the instantaneous value of which identifies said component of the signal, receiving the signal and extracting therefrom the time-variable information, and storing selected instantaneous values of said information for later retrieval.
  • a method of identifying a time-variable component of a broadcast signal comprising broadcasting an audio time-variable component, simultaneously broadcasting a signal by means of a different medium which signal contains time-variable information the instantaneous value of which identifies said audio time-variable component, receiving the signal and extracting therefrom the time-variable information, and storing selected instantaneous values of said information for later retrieval.
  • apparatus for storing selected items of information comprising a receiver for a broadcast signal having a time-variable component, said signal carrying encoded time-variable information the instantaneous value of which identifies said component of the signal, a decoder to extract from the signal the time- variable information, a store for extracted information, and a manually operable control to cause selected information to be placed in the store for later retrieval.
  • the broadcast signal may comprise any signal which is distributed for use by the general public; it may thus be (without limitation) any one of an audible acoustic signal, an optical or infra-red signal propagated along a suitable carrier such as an optical fibre or transmitted as electromagnetic radiation, a radio transmission or an electronic signal carried on wires.
  • the time-variable component of that signal will ordinarily be a musical work of one kind or another, though it could take some other form, such as the spoken word or a video signal, but the latter will ordinarily include at least part of a musical work.
  • the time-variable component could also comprise pure alpha-numerical information.
  • the time-variable information transmitted with the broadcast signal preferably is a unique identifier for or associated with the time-variable component of the broadcast signal.
  • the time-variable information should be a unique identifier for the work itself, taking into account (for instance) the name of the artist, the title of the work, and - if appropriate - the recording details.
  • every new recording should be assigned a new and unique data identifier which is logged into appropriate databases to include the relevant information for that work, such that the work may subsequently be identified from the database, when one has knowledge of the identifier.
  • a 64-bit binary signal has approximately 1.8 x 10 17 unique values, and that should be more than sufficient to identify all existing recorded works as well as those likely to be recorded for a very large number of years, even allowing for a hierarchical data structure to be employed. However, greater flexibility may be obtained by a larger signal, perhaps of up to 2048 bits or even more.
  • the time-variable information may be encoded on the broadcast signal in any of a number of well-known and understood different ways.
  • the time-variable information may be carried by that broadcast in the form of a sub-carrier.
  • the time-variable information may be carried in a brief tone burst the duration of which is below the limit of human perceptibility. If the time-variable information requires a transmission time which is too great to be inserted imperceptibly, it may be broken into a number of segments which are transmitted at spaced intervals and subsequently re-assembled to reconstruct the time-variable information.
  • the time-variable information may be inserted into the digital data stream in any convenient manner; most such digital schemes have a measure of redundancy built into them as well as spare channels, depending upon the system employed and there should be no problem encoding the information into the data stream.
  • the extraction regime to obtain the time-variable information at the time of reception of the time-variable component of the transmitted signal obviously will depend upon the nature of the transmitted signal and the encoding mechanism.
  • a suitable decoder may be inserted in the signal path of an existing receiver or a receiver may be constructed ab initio with the decoder built into the original circuitry.
  • the receiver should have a time-variable information output which is available for storing in the event that a listener to the time-variable component wishes to record that information for later recall.
  • the receiver of the broadcast signal not to have an output for the time-variable component; in such a case the receiver may be arranged solely to extract the time-variable information for selective storage. This is particularly so for a case where the time-variable information is carried by or transmitted simultaneously with an acoustic signal which is immediately audible by a listener, without the need for any kind of receiver.
  • the receiver has a relatively simple control which causes the time-variable information currently being broadcast to be stored in memory device for later recall.
  • a push-button may be provided on the receiver which, when depressed, enables the storage of the time-variable information.
  • a fixed installation such as a domestic television receiver
  • Yet another possibility is to build the receiver into the remote control unit of a fixed installation, along with the activating control for the identifying code.
  • the receiver may also be combined with a traditional identifying mechanism, such as a bar-code reader, allowing the receiver to act as a conduit for both direct time variable and time invariant information.
  • the store for time-variable information in the receiver preferably is resettable, whereby once stored information has been read from the store, the previously stored information may be erased to permit the storage of further information.
  • the store may be arranged to permit the storage of several or even many distinct items of information. In the case of a portable receiver, it may be especially constructed for the purpose of extracting time-variable information and storing the same, though it could be built into some other portable equipment.
  • a particularly preferred arrangement is for the device to be built into a mobile telephone, especially for the case of a device intended to receive an acoustic audio signal, such as may be encountered in a discotheque; a typical mobile telephone includes a microphone for reception of acoustic information and also significant processing power which could run a program adapted to extract the time- variable information.
  • the store could be built into the battery packs of the telephone, and so could be interrogated by disconnecting the battery and coupling the pack to a computer system.
  • the receiver may be capable of communication with a transmitter for the time-variable information, especially in an area where an audio signal is transmitted and listeners directly hear that signal, such as may occur in a discotheque or in a shop.
  • the transmitter may interrogate the receiver to see what time-variable information has already been stored and then adjust the transmitted time-variable component of the signal dependent thereupon.
  • the listener may give the receiver device a personality, pre-storing therein the kind of music that the listener likes, or perhaps the kind of product in which that person has an interest. Then, on interrogating the receiver device, the transmitter may take appropriate action, possibly by averaging the wishes and likes of a number of people in the listening area.
  • the listener may have control of when his device is interrogated, or to permit his device to transmit to the time-variable component transmitter only when he so wishes.
  • the device may have a profile control, which when operated transmits information to a central point.
  • An advantage of incorporating stored information in the case of a radio transmission receiver of this invention is that the stored information may be used to modify the operation of the receiver itself.
  • the receiver may be arranged to search through all the transmissions it is receiving for occurrences of the work the time-variable information (unique identifier) of which has been stored.
  • This operation may be yet further modified, for example to have the receiver tune in to a transmission broadcasting a work by the same artist or the same tune by another artist, if it cannot locate exactly the same work.
  • the principal purpose for the storage of the information is for a listener to be able to identify and obtain a recording of the work which attracted the listener's attention.
  • a stored item of time-variable information (the unique identifier of the work in question) must be available for subsequent recall and decoding.
  • this may be taken to a source of recorded works such as a record store and the device interrogated there by suitable equipment such as a computer having a an interface to which the device may be connected.
  • suitable equipment such as a computer having a an interface to which the device may be connected.
  • there may be a removable memory module which similarly can be taken to a record store, for interrogation.
  • a home computer may have access to the database and an interface for the device, whereby the device may be interrogated by the computer at the listener's home and the name of the work and other relevant information retrieved from the database.
  • the database may be maintained centrally and accessed via the Internet, from the listener's computer.
  • the music may be purchased through the Internet, either for delivery by the postal services of a CD or other music carrier, or for downloading from a music site on the Internet, using one of the protocols for that purpose such as MP3.
  • the centrally-maintained database may provide a link directly to the appropriate music source site.
  • the format for the time-variable information may include unused bits into which further information may be inserted.
  • a work may have assigned to it a unique identifier which is transmitted with the time-variable information, but the transmitter of that information may add to the unique identifier an further code identifying the transmitter, and so the source of the time-variable information being stored.
  • This will give a kind of "audit trail" which has the combined advantage of giving more information about the habits of customers and also discouraging piracy or casual copying of copyright works, since the source can be traced.

Abstract

L'invention concerne un procédé permettant d'identifier un composant variable dans le temps d'un signal de radiodiffusion (par exemple une chanson), et par conséquent, d'identifier, par exemple, le titre ou l'interprète de la chanson en cours d'émission. Les informations requises sont codées sur le signal de radiodiffusion et modifiées, par exemple, chaque fois que la chanson en cours d'émission change. Les informations sont extraites du signal de radiodiffusion reçu, puis elles sont stockées afin d'être récupérées plus tard. Par exemple, une personne entendant une chanson peut appuyer sur un bouton de stockage d'un récepteur, lequel stocke ensuite le titre de la chanson et le nom de l'artiste, lesquels peuvent être rappelés ultérieurement par cette personne.
PCT/GB2000/001025 1999-03-20 2000-03-20 Signaux de radiodiffusion WO2000057586A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU33077/00A AU3307700A (en) 1999-03-20 2000-03-20 Broadcast signals

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9906373.7A GB9906373D0 (en) 1999-03-20 1999-03-20 Broadcast signals
GB9906373.7 1999-03-20

Publications (2)

Publication Number Publication Date
WO2000057586A2 true WO2000057586A2 (fr) 2000-09-28
WO2000057586A3 WO2000057586A3 (fr) 2001-01-04

Family

ID=10849974

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2000/001025 WO2000057586A2 (fr) 1999-03-20 2000-03-20 Signaux de radiodiffusion

Country Status (3)

Country Link
AU (1) AU3307700A (fr)
GB (1) GB9906373D0 (fr)
WO (1) WO2000057586A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001006686A2 (fr) * 1999-07-19 2001-01-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Procede et dispositif pour identifier des morceaux de musique

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4887308A (en) * 1987-06-26 1989-12-12 Dutton Bradley C Broadcast data storage and retrieval system
US5063610A (en) * 1989-09-27 1991-11-05 Ing Communications, Inc. Broadcasting system with supplemental data transmission and storage
US5119507A (en) * 1991-02-19 1992-06-02 Mankovitz Roy J Receiver apparatus and methods for identifying broadcast audio program selections in a radio broadcast system
US5134719A (en) * 1991-02-19 1992-07-28 Mankovitz Roy J Apparatus and methods for identifying broadcast audio program selections in an FM stereo broadcast system
US5214792A (en) * 1989-09-27 1993-05-25 Alwadish David J Broadcasting system with supplemental data transmission and storge
WO1994024782A1 (fr) * 1993-04-22 1994-10-27 Koerber Walter E J Procede et systeme permettant d'identifier des informations concernant une emission
GB2293683A (en) * 1994-09-01 1996-04-03 Hanson Plc Apparatus for generating signals representing textual information relating to recorded matter
EP0726660A1 (fr) * 1995-02-08 1996-08-14 Casio Computer Co., Ltd. Récepteur de modulation de fréquence pour la réception de données supplémentaires dans un programme radio et des moyens de stockage et de présentation des données
WO1997034384A1 (fr) * 1996-03-13 1997-09-18 Digital D.J. Incorporated Systeme de radiodiffusion mettant en oeuvre une structure de donnees adaptative

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4887308A (en) * 1987-06-26 1989-12-12 Dutton Bradley C Broadcast data storage and retrieval system
US5063610A (en) * 1989-09-27 1991-11-05 Ing Communications, Inc. Broadcasting system with supplemental data transmission and storage
US5214792A (en) * 1989-09-27 1993-05-25 Alwadish David J Broadcasting system with supplemental data transmission and storge
US5119507A (en) * 1991-02-19 1992-06-02 Mankovitz Roy J Receiver apparatus and methods for identifying broadcast audio program selections in a radio broadcast system
US5134719A (en) * 1991-02-19 1992-07-28 Mankovitz Roy J Apparatus and methods for identifying broadcast audio program selections in an FM stereo broadcast system
WO1994024782A1 (fr) * 1993-04-22 1994-10-27 Koerber Walter E J Procede et systeme permettant d'identifier des informations concernant une emission
GB2293683A (en) * 1994-09-01 1996-04-03 Hanson Plc Apparatus for generating signals representing textual information relating to recorded matter
EP0726660A1 (fr) * 1995-02-08 1996-08-14 Casio Computer Co., Ltd. Récepteur de modulation de fréquence pour la réception de données supplémentaires dans un programme radio et des moyens de stockage et de présentation des données
WO1997034384A1 (fr) * 1996-03-13 1997-09-18 Digital D.J. Incorporated Systeme de radiodiffusion mettant en oeuvre une structure de donnees adaptative

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001006686A2 (fr) * 1999-07-19 2001-01-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Procede et dispositif pour identifier des morceaux de musique
WO2001006686A3 (fr) * 1999-07-19 2001-04-12 Fraunhofer Ges Forschung Procede et dispositif pour identifier des morceaux de musique

Also Published As

Publication number Publication date
AU3307700A (en) 2000-10-09
WO2000057586A3 (fr) 2001-01-04
GB9906373D0 (en) 1999-05-12

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