Storage module including a refresh device for storing start and stop refresh addresses
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United States of America Patent
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Feb 1, 1994
Issued Date -
N/A
app pub date -
Sep 14, 1992
filing date -
Sep 9, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A storage module which can be inserted into a data processing apparatus, such as a dictating apparatus, includes an at least partly random accessible storage device (5) for the storage of digital data signals and an access device for serially accessing storage locations in the storage device. The storage device requires refreshing and cooperates with a refresh device (6) for refreshing data signals stored in the storage device (5). The refresh device (6) includes additional storage devices (11) which store, upon writing in the storage locations of the storage device (5), start addresses and stop addresses from the access device (9), under the control of a control circuit (12). Only storage locations which are situated between a pair of start and stop addresses are timely refreshed via a refresh control device (20). Such a storage module is preferably used in conjunction with the dictating apparatus for the storage of speech signals.
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