Assignee
COM21 INC
US9 patents
Top patents by PatentIndex Score
US5425027AJun 13, 1995
Wide area fiber and TV cable fast packet cell network
COM21 INC244 citations99
US5421030AMay 30, 1995
Communications system and method for bi-directional communications between an upstream control facility and downstream user terminals
COM21 INC274 citations99
US6137793AOct 24, 2000
Reverse path multiplexer for use in high speed data transmissions
COM21 INC389 citations96
US6075972AJun 13, 2000
CATV network and cable modem system having a wireless return path
COM21 INC117 citations96
US6028860AFeb 22, 2000
Prioritized virtual connection transmissions in a packet to ATM cell cable network
COM21 INC312 citations96
US5870134AFeb 9, 1999
CATV network and cable modem system having a wireless return path
COM21 INC111 citations96
US6094211AJul 25, 2000
TV and data cable system ingress noise blocker
COM21 INC132 citations95
US6081533AJun 27, 2000
Method and apparatus for an application interface module in a subscriber terminal unit
COM21 INC336 citations95
US6049693AApr 11, 2000
Upstream ingress noise blocking filter for cable television system
COM21 INC140 citations95