A communication system for transmitting voice and data information is disclosed. The communication system includes subscriber modems, system converters and at least one system data pump. The system also includes buffer memory interposed, in the upstream direction, between the convert
A communication system for transmitting voice and data information is disclosed. The communication system includes a system converter and a system data pump configured to transform and transmit information between a subscriber and a central location. The system converters convert inf
A vertical bipolar transistor is formed along with an IGFET transistor in a process in which the bipolar transistor collector, base and emitter structure is formed in the body of a semiconductor mesa-like structure while the IGFET transistor is formed in and along one of the sidewalls of
