| 摘要 |
A multichoice programme transmission and reception system comprises a plural iy of programme sources (1) coupled to a plurality of receivers (11) via a transmission path (3, 5, 7, 9). Further outputs (12) of the sources (1) supp ly identifications of the programmes they are currently transmitting to a processor (15). The processor (15) includes a database of the ratings users of the receivers (11) have previously given to various programmes, and the processor (15) uses these to estimate the order of preference which the user of each receiver (11) has for the programmes currently being transmitted. Th e processor (15) sends the corresponding order of the sources (1) to a data input (13) of the relevant receiver (11), and the receiver (11) responds by adjusting the mapping between specific actuations of its channel selector an d the sources selected by these actuations to accord with the received order o f sources, thereby facilitating selection by the user from a large number of available programmes.
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