Method of coding and decoding for a coin-operated television system

摘要

The coding method according to the invention allows an access unit to be formed which authorises or bars access to a coin-operated television network.
<??>According to the invention, the access unit comprises at least two words: a selection word which represents the authorised transmission, and an access word which is formed from a coded combination of the first word and a further word which represents the authorisation period.
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