Matrix circuit for processing plural signals

Details Matrix circuit for processing plural signals Matrix circuit for processing plural signals

1981-12-18

1985-01-01

Martin, John C.

Amplifiers

Sum and difference amplifiers

358 24, 358 31, 328158, 307362, 381 20, H03F 345, H04N 950, G06G 700, H04S 100

Patent

active

044918011

ABSTRACT:
Unbalanced two input signals are applied to a buffer. The buffer provides to an balanced adder with balanced buffer output signals. The adder adds the buffer output signals and generates an unbalanced addition output signal. The addition output signal is inputted to one of balanced inputs of a first subtractor the other input of which is supplied with a reference potential. The buffer output signals are supplied to balanced inputs of a second subtractor. The first subtractor generates a sum of unbalanced two input signals of the buffer, and the second subtractor generates a difference thereof.

REFERENCES:
patent: 3707596 (1972-12-01), Kuhn
patent: 3761831 (1973-09-01), Foerster
patent: 3992590 (1976-11-01), Takahashi et al.

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