PARADYNE CORPORATION
285Patents
13Active
285Granted
45Portfolio score
Filing activity: Sep 24, 1974 → Oct 20, 2010 · 11 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6311288A | System and method for virtual circuit backup in a communication network | Electricity | 270 | Expired |
| US4811357A | Secondary channel for digital modems using spread spectrum subliminal induced modulation | Electricity | 176 | Expired |
| US5841840A | Multiple line modem and method for providing voice on demand | Electricity | 175 | Expired |
| US6061392A | Apparatus and method for communicating voice and data between a customer premises and a central office | Electricity | 153 | Expired |
| US5848150A | Passive distributed filter system and method | Electricity | 147 | Expired |
| US6038219A | User-configurable frame relay network | Electricity | 130 | Expired |
| US7039015B1 | System and method for the collection and display of network performance data in a communication network | Electricity | 115 | Expired |
| US6111936A | Method and apparatus for automatically detecting and measuring distortion in a DSL system | Electricity | 105 | Expired |
| US5970066A | Virtual ethernet interface | Electricity | 102 | Expired |
| US5724262A | Method for measuring the usability of a system and for task analysis and re-engineering | Physics | 98 | Expired |
| US6580785B2 | Apparatus and method for simultaneous multiple telephone type services on a single telephone line | Emerging Cross-Sectional Technologies | 91 | Expired |
| US5898674A | System and method for performing non-disruptive diagnostics through a frame relay circuit | Electricity | 90 | Expired |
| US5796808A | System and method for automatically selecting the mode of communication between a plurality of modems | Electricity | 87 | Expired |
| US5636282A | Method for dial-in access security using a multimedia modem | Electricity | 87 | Expired |
| US5748426A | Method for interfacing to a powered bus | Electricity | 86 | Expired |
| US5602846A | Simultaneous voice and data call establishment using a simultaneous voice and data modem pool and private branch exchange facilities | Electricity | 85 | Expired |
| US5655010A | Line-powered modem with capacitive isolation | Electricity | 83 | Expired |
| US5826034A | System and method for transmission of communication signals through different media | Physics | 83 | Expired |
| US6160790A | Crosstalk canceller system and method | Electricity | 83 | Expired |
| US4677625A | Distributed trellis encoder | Electricity | 77 | Expired |
| US5600712A | Enabling technique for quickly establishing high speed PSTN connections in telecommuting applications | Electricity | 75 | Expired |
| US5901205A | Adaptive voice and data bandwidth management system for multiple-line digital subscriber loop data communications | Electricity | 72 | Expired |
| US6826620B1 | Network congestion control system and method | Electricity | 69 | Expired |
| US5805669A | "Rate adaptaptive subscriber line (""RADSL"") modem and method of operation" | Electricity | 65 | Expired |
| USD408796S | Housing | General | 64 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.