Gunn-effect device modulatable by coded pulses, and a parallel-s

Details Gunn-effect device modulatable by coded pulses, and a parallel-s Gunn-effect device modulatable by coded pulses, and a parallel-s

1979-09-13

1982-03-16

Larkins, William D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307478, 357 3, 357 15, H01L 4702, H01L 2726

Patent

active

043203132

ABSTRACT:
A Gunn-effect device originated from a Gunn-triode wherein electrodes are added between gate and anode for receiving high and low potentials representing states 1 and 0 of a binary code. In a normal Gunn-triode a very short pulse on the gate produces a dipole domain which is propagated to the anode within a time of the order of the nanosecond. In the present device, under each finger brought temporarily to a low potential, there is produced a space charge which induces a negative pulse in the anode current of the Gunn device upon the passage of a dipole domain under the finger. Consequently, a series of successive pulses corresponds to a combination of simultaneous binary states. A digital converter using this device is proposed for converting simultaneous binary signals into successive binary signals.

REFERENCES:
patent: 3452222 (1969-06-01), Shoji
patent: 3518502 (1970-06-01), Dorman et al.
patent: 3553677 (1971-01-01), Cattermole
patent: 3587000 (1971-06-01), Heeks
patent: 3667003 (1972-05-01), Hilsum et al.
patent: 3766372 (1973-10-01), Kataoka et al.
patent: 4047199 (1977-09-01), Kataoka et al.
Mizatani et al., Electronics Letters, vol. 11, Nos. 25-26, Dec. 11, 1975, pp. 638-639.
Hilsum, Proceedings of the IRE, vol. 50, pp. 185-189, Feb. 1962.
Tanimoto et al., Annu. Rep. Eng. Res. Inst. Fac. Eng. Univ. Tokyo (Japan), vol. 34, Sep. 1975, pp. 205-210.

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