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US 4,788,693 AGranted
Data communication replicator
AssigneeAmerican Telephone and Telegraph Company, AT&T Bell Laboratories
InventorsLaurence E. Bays, Walter P. Hays, III
Life of this patent
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Abstract
A data bus having a given size (e.g., 32 bits) provides for transfer of information between various logic and memory elements within, or among, one or more integrated circuits. Certain of the information transfers require the full information path, while others use only a portion (e.g., 8 or 16 bit transfers). To expedite the transfers of the smaller size words, a given word is replicated to fill up the full data base. This avoids the necessity of specifying the exact location of the smaller word on the data bus.
Claims12
A data system comprising:
- a data bus adapted to transmit data words of differing sizes;
- a data source adapted to transmitting in parallel the bits of a data word on a first group of conductors of said bus;
- a destination adapted to receiving in parallel data bits from a second group of conductors of said bus;
- a replicator for replicating the bits of said data word;
- and control means adapted to receive from said data source the location of said first group of conductors on said bus, and to cause said replicator to replicate the bits of said data word onto said second group of conductors.
2 more elements
Dependencies are inferred from the claim text.