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1. (WO1983001545) CODEUR POUR UN CODE DE DESACTIVATION DE MESSAGES TRANSMIS
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Claims

1. An encoding device for generating sequential code signals containing information which is to be transmitted by means of electromagnetic radiation to selected receivers in a plural population of receivers comprising:
means for generating coded signals to address at least one receiver, in said plural population;
means for producing coded information to be processed by addressed receivers; and
means for generating coded deactivation signals subsequent to said coded information to cause said addresed receivers to terminate processing of coded information.

2. The method of encoding information signals for transmission of information to a plural population of receivers comprising the steps of:
generating coded signals to address designated ones of said plural receiver population; and
generating coded information to be processed by addressed receivers; and
generating coded deactivation signals subsequent to said coded information to cause addressed receivers to terminate processing of coded information.