Quadriphase — A new approach to time-division multiplexing
William E. Evans, R. F. Lowe · Electrical Engineering · 1955
Time-division multiplex systems once required either complex waveforms or multiple complex networks to overcome the master timing or synchronization problem. Now this newly designed quadriphase system, using a completely new approach to the problem, presents simplicity of design, operation, and maintenance, with similar reliability and excellent performance.