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| Number | Title | Issue Date |
| 5874964 | Method for modeling assignment of multiple memberships in multiple groups Collections of articles or entities are represented on a video display in a manner that allows one to view the relationship, if any, between those articles. One embodiment uses circular representations to model set membership of the entities in one or mor... | 02/23/1999 |
| 5638515 | Method for stripping dataframes from the communicating medium in an FDDI communications network A dataframe filter is provided a local area network bridge to monitor the dataframes transmitted on one network to determine those dataframes destined to be communicated to another network by the network bridge. The filter receives and examines the destin... | 06/10/1997 |
| 5630113 | Method and apparatus for reducing jitter accumulation in a series of repeating devices A data stream is received by a first in a series of repeating devices and retransmitted from repeating device to repeating device. As the data stream is retransmitted, the data stream accumulates jitter. A jitter reduction apparatus therefore is used afte... | 05/13/1997 |
| 5568613 | Dataframe bridge filter with communication node recordkeeping A dataframe filter is provided a local area network bridge to monitor the dataframes transmitted on one network to determine those dataframes destined to be communicated to another network by the network bridge. The filter receives and examines the destin... | 10/22/1996 |
| 5412656 | Network hub for maintaining node bandwidth in a single-node network A hub network system is provided for communication between nodes. The system can be used, e.g., when one node can be configured for baseband bus topology communication, such as LocalTalk™ communication. The node can communicate using the entire bandwidt... | 05/02/1995 |
| 5400334 | Message security on token ring networks Two message security methods and apparatus for the same for token ring local area networks. According to a first method, a port in a ring central controller examines the source and destination addresses of a received data packet and stores a received data... | 03/21/1995 |
| 5177788 | Network message security method and apparatus A security system for local area networks (LAN) to prevent eavesdropping of or to control access to LAN traffic at repeater or concentrator ports. The security system determines which repeater ports are to have security activated according to a given set ... | 01/05/1993 |
| 5077543 | Balanced low-pass common mode filter A balanced T-section low-pass common mode filter is connected in series with balanced data I/O lines to remove common mode signals from balanced line difference mode signals. The filter includes input and output series transformers configured so that the ... | 12/31/1991 |
