| 1 2 |
| Patent ID | Title | Date Filed |
| 5862136 | Telecommunications apparatus and method
| May 30, 1996 |
| 5841771 | Telecommunications switch apparatus and method for time switching
| July 3, 1996 |
| 5841766 | Diversity-oriented channel allocation in a mobile communications system
| August 12, 1996 |
| 5828664 | Integrated network switch having mixed mode switching with selectable full frame/half frame switching
| February 18, 1997 |
| 5825768 | Interface for an asymmetric digital subscriber line transceiver
| September 30, 1996 |
| 5715247 | Method of sending and receiving setting information and monitoring information in communication apparatus
| March 18, 1996 |
| 5678178 | SDH network having dynamic allocation of transmission capacity
| December 30, 1994 |
| 5654967 | Delay-in-frames correcting system in a PCM transmission line
| November 30, 1995 |
| 5648962 | Base station in a cellular radio system and a cellular radio system
| April 10, 1996 |
| 5555245 | Method for implementing time switching and a time switch
| March 7, 1995 |
| 5544163 | Expandable telecommunications system
| March 8, 1994 |
| 5495477 | Signal transmission system including allocation of signal elements to different categories
| March 16, 1994 |
| 5448556 | Exchange system handling an in-band signal
| January 21, 1994 |
| 5408460 | Device for processing signals in the form of packets
| March 26, 1993 |
| 5388096 | Distributed circuit switch having switch memory and control memory
| June 23, 1993 |
| 5359596 | Apparatus and method for finding bandwidth and making circuits in a telecommunications transport network
| October 1, 1992 |
| 5291484 | Relay and exchange system for time division multiplex data
| May 3, 1991 |
| 5229989 | Method and apparatus for processing digital signals
| December 21, 1992 |
| 5187705 | Data error detecting apparatus for key telephone system and the detecting method therefor
| January 16, 1991 |
| 5136578 | Transposed multi-channel switching
| September 21, 1990 |
| 5130979 | Frame converter using a dual-port random access memory
| July 6, 1989 |
| 5040174 | Time division speech path apparatus
| August 3, 1990 |
| 4905225 | Communication system for timing multiplex hybrids
| February 8, 1988 |
| 4887264 | Digital key telephone system
| August 10, 1988 |
| 4876682 | Switching tdm digital signals
| May 13, 1986 |
| 4873682 | Digital key telephone system
| November 30, 1987 |
| 4858222 | Circuit arrangement for serial data transmission
| July 29, 1987 |
| 4835766 | Monitoring system capable of monitoring a sequence of digital signals flowing through a subscriber line
| May 19, 1987 |
| 4773065 | Data framing system for time division multiplexing transmission
| January 2, 1987 |
| 4747130 | Resource allocation in distributed control systems
| December 17, 1985 |
| 4740953 | Time division speech path switch
| May 7, 1986 |
| 4686669 | Path hunting in a distributed control switching system
| February 7, 1985 |
| 4597076 | Data transmission system
| October 5, 1984 |
| 4543653 | Modular self-routing PCM switching network for distributed-control telephone exchange
| June 22, 1983 |
| 4543652 | Time-division switching unit
| July 27, 1983 |
| 4538260 | Electronic time switch
| August 22, 1983 |
| 4512012 | Time-switch circuit
| February 10, 1983 |
| 4485467 | Digital information switch matrix with on-line/off-line diagnostic features
| February 18, 1982 |
| 4468767 | Drop-and-insert multiplex digital communications system
| December 7, 1981 |
| 4455648 | Time division multiplex switching network unit
| February 4, 1982 |
| 4420832 | Concentrator-deconcentrator devices
| April 21, 1980 |
| 4402074 | Switching network test system
| October 14, 1980 |
| 4398285 | Time-division multiplex switching network
| February 5, 1981 |
| 4382294 | Telephone switching control arrangement
| October 26, 1981 |
| 4345273 | Broad band switching system
| November 4, 1980 |
| 4317008 | Modular time-division switching network
| April 25, 1980 |
| 4296492 | Continuity verification arrangement
| December 26, 1979 |
| 1 2 |