| 摘要 |
A message transmission system, such as a paging system, in which message compression is practised through the use of identical memories (46, 80 (not shown)) in a primary station (10) and a secondary station (20 - not shown) storing identically the most frequently used n (where n is an integer) items of numeric only or alpha-numeric data. The contents of the memories (46, 80) are updatable dynamically to reflect changes in the most frequently used items by the primary station examining messages to be sent to a particular addressee to see if an item is being used more frequently than one of those stored in which case the primary station at its own volition re-writes the data in the memories (46, 80). The secondary station automatically acknowledges that its memory has been updated. The inventive technique may also be applied to frequently used phrases and also to complex graphical data which it is more efficient to store in the primary and secondary stations and to transmit a memory location indicator. |
