Compact multifunction logic circuit

Details Compact multifunction logic circuit Compact multifunction logic circuit

1989-10-10

1991-05-14

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307243, 307469, 36518908, 36518911, G06F 738, H03K 1756, G11C 700

Patent

active

050158830

ABSTRACT:
The invention is a compact multifunction logic circuit, offering low power operation and compact layout. It has utility in computer graphics processing circuitry. Internal and external data and inverse data inputs are provided to the three passthrough gates 21E, 21F and 21G. The circuit is designed so that one and only one of the passthrough gates 21E, 21F and 21G is activated at any given time. Therefore, even though all three passthrough gates 21E, 21F and 21G have inputs supplied by the outputs of NOR 22, XOR 20 and NAND 23 only one of the three gate outputs is passed to the final output node 19.

REFERENCES:
patent: 4567385 (1986-01-01), Falater et al.
patent: 4839539 (1989-06-01), Takata et al.
patent: 4893031 (1990-01-01), Masuda
patent: 4933577 (1990-06-01), Wong et al.
Digital Principles and Applications, by Albert Paul Malvino on pp. 100-103.
Digital Fundamentals, fourth edition, by Thomas L. Floyd, pp. 153 and 154.

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