Communications: electrical – Continuously variable indicating – With meter reading
Patent
1986-10-16
1988-05-17
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
379292, 307241, H04Q 900, H04Q 352
Patent
active
047454091
ABSTRACT:
In a broadband signal space switching device, the respective switching elements are controllable by a decoder-controlled, crosspoint-associated memory cell and are respectively formed with a CMOS inverter circuit having MOS transistors of the enhancement type which lie between a switching element input and a switching element output. A further p-channel transistor, likewise of the enhancement type, is inserted between the p-channel enhancement transistor and the appertaining feed voltage source and a further n-channel transistor, likewise of the enhancement type, is inserted between the n-channel enhancement transistor and the appertaining feed voltage source. The control electrodes of the further enhancement transistors are connected to the outputs of the memory cell.
REFERENCES:
patent: 3618024 (1971-11-01), Leger et al.
patent: 3832495 (1974-08-01), Hovagimyan et al.
patent: 3980831 (1976-09-01), Mertel
patent: 4156153 (1979-05-01), Szechenyi
patent: 4446552 (1985-05-01), Tweedy
Pfannschmidt, "Arbeitsgeschwindigkeitsgrenzen von Koppelnetzwerken fur Breitband-Digitalsignale", Dissertation, Braunschweig 1978, pp. 120-125.
ISS '84 Conference Papers 23C1, p. 7, (FIG. 9), May 1984.
ISS '84 Conference Papers 31C3, pp. 1-6, May 1984, C. Duret et al., Integrated Crosspoint Technology for Wideband Space Division Switching Networks".
Siemens Aktiengesellschaft
Yusko Donald J.
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