Assignee
MADGE NETWORKS LTD
GB21 patents
Top patents by PatentIndex Score
US5825259AOct 20, 1998
Electromagnetic interference isolator with common mode choke
MADGE NETWORKS LTD138 citations95
US4905230AFeb 27, 1990
Token ring expander and/or hub
MADGE NETWORKS LTD62 citations92
US5991295ANov 23, 1999
Digital switch
MADGE NETWORKS LTD161 citations90
US5459440AOct 17, 1995
Automatic impedance matching with potential monitoring means
MADGE NETWORKS LTD66 citations90
US6539020B1Mar 25, 2003
Bridge device
MADGE NETWORKS LTD22 citations87
US5924112AJul 13, 1999
Bridge device
MADGE NETWORKS LTD34 citations87
US5515404AMay 7, 1996
Data communication systems
MADGE NETWORKS LTD41 citations87
US6172964B1Jan 9, 2001
Clock synchronization
MADGE NETWORKS LTD20 citations85
US6018518AJan 25, 2000
Flow control in a cell switched communication system
MADGE NETWORKS LTD41 citations84
US5710777AJan 20, 1998
Communication system
MADGE NETWORKS LTD51 citations81
US5905712AMay 18, 1999
Data communication network
MADGE NETWORKS LTD18 citations80
US5541853AJul 30, 1996
Processor configurable for both virtual mode and protected mode
MADGE NETWORKS LTD24 citations80
US6275549B1Aug 14, 2001
Methods and apparatus for synchronizing a clock
MADGE NETWORKS LTD15 citations79
US6351725B1Feb 26, 2002
Interface apparatus
MADGE NETWORKS LTD19 citations74
US5548280AAug 20, 1996
Local area network hub unit
MADGE NETWORKS LTD14 citations74
US4985888AJan 15, 1991
Token ring system hierarchy
MADGE NETWORKS LTD16 citations70
US6101553AAug 8, 2000
Communication network end station and adaptor card therefor eliminating on-board storage of operating control code in adaptor card
MADGE NETWORKS LTD11 citations69
US5926048AJul 20, 1999
Method and apparatus for synchronizing clock signals
MADGE NETWORKS LTD13 citations66
US6201816B1Mar 13, 2001
Token ring speed detection
MADGE NETWORKS LTD4 citations62
US5805598ASep 8, 1998
End station port
MADGE NETWORKS LTD8 citations58
US5754551AMay 19, 1998
Ring communication system and method for connecting a plurality of end stations
MADGE NETWORKS LTD3 citations56