Canadian Patents Database / Patent 2323937 Summary

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(12) Patent Application: (11) CA 2323937
(54) English Title: AUDIENCE RATING SYSTEM FOR DIGITAL TELEVISION AND RADIO
(54) French Title: SYSTEME DE CALCUL DU TAUX D'ECOUTE POUR TELEVISION ET RADIO NUMERIQUES
(51) International Patent Classification (IPC):
  • H04N 7/16 (2006.01)
  • H04N 5/00 (2006.01)
  • H04H 9/00 (2006.01)
(72) Inventors (Country):
  • MASSETTI, ENRICO EMILIO (United States of America)
(73) Owners (Country):
  • MASSETTI, ENRICO EMILIO (United States of America)
(71) Applicants (Country):
  • MASSETTI, ENRICO EMILIO (United States of America)
(74) Agent: MACRAE & CO.
(45) Issued:
(86) PCT Filing Date: 1999-05-21
(87) PCT Publication Date: 1999-12-02
(30) Availability of licence: N/A
(30) Language of filing: English

(30) Application Priority Data:
Application No. Country Date
09/085,501 United States of America 1998-05-27
09/289,758 United States of America 1999-04-12

English Abstract




An audience rating system for digital television and radio, using
identification codes in control streams (C) of time-multiplexed digital
transmissions (12). When a television set (22) or radio, that is being
monitored pursuant to the system is turned on and tuned to a channel, and each
time that the channel is changed, an identification code for each audio, video
or auxiliary digital stream of the channel is extracted from the control
stream, and recorded along with the time. The time is also recorded when the
television set or radio is turned off. This data makes it possible to
determine what stations, channels, and programs members of the audience being
monitored are watching or listening to at any particular time.


French Abstract

L'invention concerne un système de calcul du taux d'écoute pour télévision et radio numériques. Ce système fait appel à des codes d'identification compris dans des trains (C) de contrôle d'émissions (12) numériques à multiplexage dans le temps. Lorsqu'un poste (22) de télévision ou de radio contrôlé au moyen de ce système est allumé et réglé sur un canal, et à chaque changement de canal, un code d'identification pour chaque train numérique audio, vidéo ou train numérique auxiliaire du canal est extrait du train de contrôle et enregistré en même temps que l'heure. L'heure est également enregistrée lorsque le poste de télévision ou de radio est éteint, Ces données permettent de déterminer quelles stations, canaux et émissions sont regardés ou écoutés à un quelconque moment par les auditeurs faisant l'objet du contrôle.


Note: Claims are shown in the official language in which they were submitted.


CLAIMS
I claim:
1. An audience rating system for digital television
and radio, comprising the steps of:
extracting at least one identification code for at
least one digital stream of a first channel, from a control
stream of a multiplexed digital transmission, when
reception of the first channel by a receiver begins;
recording at least one identification code extracted
and the time reception of the first channel begins;
extracting at least one identification code for at
least one digital stream of any subsequent channel, from
the control stream of the multiplexed digital transmission,
when reception of the subsequent channel by the receiver
begins;
recording at least one identification code extracted
and the time reception of the subsequent channel begins;
and
recording the time that reception by the receiver is
ended.
20


2. An audience rating system for digital television
and radio according to claim 1, wherein the multiplexed
digital transmission is transmitted by electromagnetic
radiation.
3. An audience rating system for digital television
and radio according to claim 1, wherein the multiplexed
digital transmission is transmitted by electricity.
4. An audience rating system for digital television
and radio according to claim 1, wherein the identification
codes, the time reception of each channel begins, and the
time reception ends, are recorded by a meter and stored in
a memory unit of the meter.
5. An audience rating system for digital television
and radio according to claim 1, wherein the identification
codes, the time reception of each channel begins, and the
time reception ends, are recorded by a meter and
transmitted to a computer.

21



6. An audience rating system for digital television
and radio according to claim 1, wherein the multiplexed
digital transmission is received separately by the receiver
and by a meter;
when the receiver is turned on, and when the channel
that the receiver is tuned to is changed, the meter
compares digital streams of the channel that the receiver
is tuned to, to digital streams of each of the channels in
the multiplexed digital transmission, until it finds a
match and extracts at least one identification code for at
least one digital stream of the channel from the control
stream, and records the identification code along with the
time; and
when reception by the receiver is ended, the meter
records the time.
22


7. An audience rating system for digital television
and radio according to claim 6, wherein a plurality of
multiplexed digital transmissions can be received at
different frequencies;
when the receiver is turned on, the meter records a
first frequency received, and the time reception of the
first frequency,begins; and
when the frequency received is changed, the meter
records any subsequent frequency received, and the time
reception of the subsequent frequency begins.
8. An audience rating system for digital television
and radio according to claim 7, wherein:
the receiver has a first tuner; and
the meter has a second tuner which is automatically
tuned to the first frequency received when reception
begins, and to any subsequent frequency when the frequency
received is changed.
9. An audience rating system for digital television
and radio according to claim 6, wherein the control stream
is accessed by the meter through an access control card
connector.
23



10. An audience rating system for digital television
and radio according to claim 1, wherein
when the receiver is turned on, and when the channel
that the receiver is tuned to is changed, an elementary
stream is extracted from the multiplexed digital
transmission, the elementary stream is passed to a meter,
the meter extracts at least one identification code from
the elementary stream, and the meter records the
identification code along with the time; and
when reception by the receiver is ended, the meter
records the time.
11. An audience rating system for digital television
and radio according to claim 10, wherein the control stream
is accessed by the meter through an auxiliary connector in
a digital decoder.
12. An audience rating system for digital television
and radio according to claim 10, wherein the control stream
is accessed by the meter through an access control card
connector.
24




13. An audience rating system for digital television
and radio according to claim 10, wherein a plurality of
multiplexed digital transmissions can be received at
different frequencies;
when the receiver is turned on, the meter records a
first frequency received, and the time reception of the
first frequency begins; and
when the frequency received is changed, the meter
records any subsequent frequency received, and the time
reception of the subsequent frequency begins.
14. An audience rating system for digital television
and radio according to claim 13, wherein:
the receiver has a first tuner; and
the meter has a second tuner which is automatically
tuned to the first frequency received when reception
begins, and to any subsequent frequency when the frequency
received is changed.



25




15. An audience rating system for digital television
and radio according to claim 14, wherein the first tuner
and the second tuner are both integrated receivers and
decoders, and the second tuner has a conditional access
module for specific broadcaster.
16. A system for recording reception of pay programs
on digital television and radio, comprising the steps of:
extracting at least one identification code for at
least one digital stream of a first channel, from a control
stream of a multiplexed digital transmission, when
reception of the first channel by a receiver begins;
recording at least one identification code extracted
and the time reception of the first channel begins;
extracting at least one identification code for at
least one digital stream of any subsequent channel, from
the control stream of the multiplexed digital transmission,
when reception of the subsequent channel by the receiver
begins;
recording at least one identification code extracted
and the time reception of the subsequent channel begins;
and



26




recording the time that reception by the receiver is
ended.
17. An apparatus for audience rating of digital
television and radio, comprising:
means for extracting at least one identification code
for at least one digital stream of a first channel, from a
control stream of a multiplexed digital transmission, when
reception of the first channel by a receiver begins;
means for recording at least one identification code
extracted and the time reception of the first channel
begins;
means for extracting at least one identification code
for at least one digital stream of any subsequent channel,
from the control stream of the multiplexed digital
transmission, when reception of the subsequent channel by
the receiver begins;
means for recording at least one identification code
extracted and the time reception of the subsequent channel
begins; and
means for recording the time that reception by the
receiver is ended.



27




18. An apparatus for audience rating of digital
television and radio according to claim 17, wherein the
multiplexed digital transmission is received separately by
the receiver and by a meter;
when the receiver is turned on, and when the channel
that the receiver is tuned to is changed, the meter
compares digital streams of the channel that the receiver
is tuned to, to digital streams of each of the channels in
the multiplexed digital transmission, until it finds a
match and extracts at least one identification code for at
least one digital stream of the channel from the control
stream, and records the identification code along with the
time; and
when reception by the receiver is ended, the meter
records the time.



28




19. An apparatus for audience rating system of
digital television and radio according to claim 18, wherein
a plurality of multiplexed digital transmissions can be
received at different frequencies;
when the receiver is turned on, the meter records a
first frequency received, and the time reception of the
first frequency begins; and
when the frequency received is changed, the meter
records any subsequent frequency received, and the time
reception of the subsequent frequency begins.
20. An apparatus for audience rating of digital
television and radio according to claim 17, wherein
when the receiver is turned on, and when the channel
that the receiver is tuned to is changed, an elementary
stream is extracted from the multiplexed digital
transmission, the elementary stream is passed to a meter,
the meter extracts at least one identification code from
the elementary stream, and the meter records the
identification code along with the time; and
when reception by the receiver is ended, the meter
records the time.



29


A single figure which represents the drawing illustrating the invention.

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Admin Status

Title Date
(86) PCT Filing Date 1999-05-21
(87) PCT Publication Date 1999-12-02
(85) National Entry 2000-09-14
Dead Application 2003-05-21

Payment History

Fee Type Anniversary Year Due Date Amount Paid Paid Date
Filing $300.00 2000-09-14
Maintenance Fee - Application - New Act 2 2001-05-22 $100.00 2001-04-23

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Cover Page 2000-12-14 1 49
Representative Drawing 2000-12-14 1 6
Abstract 2000-09-14 1 56
Description 2000-09-14 19 672
Claims 2000-09-14 10 272
Drawings 2000-09-14 4 83
PCT 2000-09-14 6 240