Abstract: A method stores data and check bits for that data within a memory chip. The memory chip stores the data and check bits in a plurality of pages contained in the memory chip, each page including a plurality of storage locations with each storage location having an associated address. The method includes receiving data to be stored in the memory, calculating check bits for the received data, mapping the data to addresses associated with the storage locations in a given page in the memory chip, mapping the check bits to addresses associated with the storage locations contained in the same page as the data, and storing the data and check bits in the page. The method may be applied to a single memory chip or to multiple memory chips.

Abstract: A method stores data and check bits for that data within a memory chip. The memory chip stores the data and check bits in a plurality of pages contained in the memory chip, each page including a plurality of storage locations with each storage location having an associated address. The method includes receiving data to be stored in the memory, calculating check bits for the received data, mapping the data to addresses associated with the storage locations in a given page in the memory chip, mapping the check bits to addresses associated with the storage locations contained in the same page as the data, and storing the data and check bits in the page. The method may be applied to a single memory chip or to multiple memory chips.

Abstract: A method of caching counter values in network packet traffic sampling, includes: generating a pre-sample strobe; loading the pre-sample strobe into a counter cache; waiting for the next strobe; and generating a sample pulse when the next strobe arrives. An apparatus for counting packet values and for sampling the values, includes: a packet sampling processor including a counter cache, the packet sampling processor responsive to a pre-sample strobe so that the pre-sample strobe updates the counter cache, where a sample pulse is generated when the next strobe arrives.

Abstract: A method of caching counter values in network packet traffic sampling, includes: generating a pre-sample strobe; loading the pre-sample strobe into a counter cache; waiting for the next strobe; and generating a sample pulse when the next strobe arrives. An apparatus for counting packet values and for sampling the values, includes: a packet sampling processor including a counter cache, the packet sampling processor responsive to a pre-sample strobe so that the pre-sample strobe updates the counter cache, where a sample pulse is generated when the next strobe arrives.

Abstract: The present invention provides the compounds of the formula (II): ##STR1## and salts and esters thereof wherein R.sub.1 is a hydrogen atom or an alkyl group of 1-4 carbon atoms and R.sub.2 is a hydrogen atom or an alkyl group of 1-4 carbon atoms or is joined to R.sub.1 to form part of a 5-, 6- or 7 membered carbocyclic ring. These compounds are .beta.-lactamase inhibitors able to enhance the effectiveness of pencillins and cephalosporins. Their preparation and compositions containing them are described.