Masahiro Shinbashi

Switching redundancy control

System for switching from working units to stand-by units

Add/drop multiplexer for supporting fixed length cell

Jitter suppression circuit for clock signals used for sending data from a synchronous transmission network to an asynchronous transmission network

Switching complex architecture and operation

Add-drop multiplexer with enhancement of accessibility to signals in different hierarchical levels and flexibility in various services and circuit setting operations

Dialable data services/tdm bandwidth management

Alarm system for station in a communications system using asynchronous third-digital-stage signal

Apparatus for detecting error in a communications line

Spare switching control system