Registers – Transfer mechanism – Traveling pawl
Patent
1975-08-04
1977-01-18
Ruggiero, Joseph F.
Registers
Transfer mechanism
Traveling pawl
307229, 328145, G06G 716, G06G 724
Patent
active
040041417
ABSTRACT:
An analog device for generating an output signal which is proportional to the linear product between a first input signal and the antilogarithm of the second input signal, and comprising a means for applying the second input signal simultaneously and identically across the base-emitter junction of two electrically matched transistors; a means for summing each differential component of the first input signal with the second input signal across one of the same base-emitter junctions is provided; and further including a means for differencing the signals developed in the collectors of the two transistors so that the output signal is comprised only of the desired product of the two input signals.
REFERENCES:
patent: 3152250 (1964-10-01), Platzer, Jr.
patent: 3329836 (1967-07-01), Pearlman et al.
patent: 3492497 (1970-01-01), Gilmour et al.
patent: 3676661 (1972-07-01), Sprowl
patent: 3714462 (1973-01-01), Blackmer
Ruggiero Joseph F.
Veneman Dirk J.
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