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1. (WO1991008626) METHOD OF LABELLING A BROADCAST SIGNAL
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/008626 International Application No.: PCT/GB1990/001888
Publication Date: 13.06.1991 International Filing Date: 04.12.1990
Chapter 2 Demand Filed: 27.06.1991
IPC:
H04H 20/28 (2008.01) ,H04N 7/08 (2006.01) ,H04N 7/081 (2006.01) ,H04N 7/088 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
H
BROADCAST COMMUNICATION
20
Arrangements for broadcast or for distribution combined with broadcast
28
Arrangements for simultaneous broadcast of plural pieces of information
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
7
Television systems
08
Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
7
Television systems
08
Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band
081
the additional information signals being transmitted by means of a subcarrier
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
7
Television systems
08
Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band
087
with signal insertion during the vertical blanking interval
088
the inserted signal being digital
Applicants:
BRITISH BROADCASTING CORPORATION [GB/GB]; Broadcasting House London W1A 1AA, GB (AllExceptUS)
CHAMBERS, John, Philip [GB/GB]; GB (UsOnly)
Inventors:
CHAMBERS, John, Philip; GB
Agent:
HARLAND, Linda, Jane; Reddie & Grose 16 Theobalds Road London WC1X 8PL, GB
Priority Data:
8927615.806.12.1989GB
Title (EN) METHOD OF LABELLING A BROADCAST SIGNAL
(FR) PROCEDE DE MARQUAGE D'UN SIGNAL DE DIFFUSION
Abstract:
(EN) A method of labelling a broadcast signal in which a special label, preferably, a label for the next following programme transmitted repeatedly at predetermined intervals prior to the programme change indicates that an event is to occur after a predetermined interval.
(FR) Procédé de marquage d'un signal de diffusion dans lequel une marque spéciale, de préférence, une marque destinée au programme suivant, transmise de manière itérative à intervalles prédéterminés avant le changement de programme, indique qu'un événement va avoir lieu après un intervalle prédéterminé.
Designated States: JP, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0504175US5469207JP3251940JPH05500892DE000069022430GB2238925