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Abstract

Apparatus and process for processing and memorizing in a differentiated form data relating to data recorded over a long time period, in particular in an active implantable medical device, more particularly, Holter functions. This process includes the steps of: a) memorizing in a first memory sector (10) a detailed representation of the data, e.g., Holter data (14, 16, 18, 20), over a plurality of short successive time periods (22), in particular one hour intervals, these intervals following one another over a longer but still short or intermediate time period, corresponding in particular to a one day interval; b) periodically, reading in the first memory sector the detailed representation and processing the data so as to work out over the intermediate time period (24), in particular a one day period, a consolidated representation of the data recorded over the successive shorter intervals constituting the aforementioned short or intermediate period; c) cumulatively memorizing in a second memory sector (12) the consolidated representation, to give a representation of the data over a series of the intermediate periods (24) following one another over a relatively long time period, in particular a period of several days or several months; and d) freeing a portion of the first memory sector to allow to memorize therein another detailed representation of new data for the plurality of successive short time periods for the following intermediate period.

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