Patent
Multi-function logic circuit
TLDR
In this article, the authors describe a multi-function logic circuit which simultaneously receives data signals and control signals, and output logic signals, representing the result of the selected logical operation, are generated by the circuits.Abstract:Â
Disclosed are multi-function logic circuits which simultaneously receive data signals and control signals. The control signals select logic operations for the multi-function logic circuits to perform on the data signals. Output logic signals, representing the result of the selected logical operation, are generated by the circuits. A four transistor embodiment selectively performs an EXCLUSIVE OR, OR, and NAND operation. A six transistor embodiment selectively performs a FULL ADD, NOR, OR NAND, and AND operation. The six transistor embodiment is suitable for use as an arithmetic logic unit in a digital computer.read more
Citations
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Patent
Combinational logic structure using pass transistors
TL;DR: Pass transistors as mentioned in this paper are used to reduce the layout complexity of logic circuits by using PASS transistors connected to pass a first and second input function to an output node in response to selected CONTROL signals, thereby to generate a selected output function on the output node.
Patent
Field reconfigurable logic/memory array
TL;DR: In this paper, a mode select circuit is designed to operate in plural modes, a two-mode mode select circuits being the preferred embodiment, where unused or unrequired circuitry is either isolated from the active portion of the circuit or used to enhance operation of required circuitry, such as operating in parallel therewith or in series therewith.
Patent
Transmission-gate structured logic circuits
TL;DR: In this article, the basic logic building blocks for AND and OR circuits comprise a plurality of transmission-gates some of which may be simplified to a reduced form of a single pass transistor resulting in fewer transistors for implementing logic functions without loss of logic circuit performance characteristics.
Patent
Universal logic circuit
TL;DR: A universal logic circuit as mentioned in this paper performs a selected one of several logic operations on a pair of input signals in response to the receipt of a control signal and the terminals to which the input signals and control signal are coupled.
Patent
Complementary field effect transistor EXCLUSIVE OR logic gates
TL;DR: In this paper, a complementary MOS static EXCLUSIVE OR gate is formed by a PMOS logic network having a pair of cross-coupled PMOS transistors and an NMOS logic networks having two parallel branches.
References
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Patent
Exclusive or integrated logic circuits using complementary MOSFET technology
TL;DR: In this paper, an Exclusive OR circuit fabricated in CMOS technology is arranged to minimize circuit switching elements and generate inverted inputs within the circuit, and an exclusive OR circuit is constructed to minimize the circuit switching element.
Patent
Convertible nand/nor gate
Forlani Franco,Rodari Gianpiero +1 more
TL;DR: In this paper, a novel integrated circuit element for use as a dual functioning NAND/NOR gate for a digital data processing circuit is described, which contains a first set of field effect transistors that can be operatively connected in either series or parallel to perform a NAND or NOR function on any inputed signals.
Patent
Complementary metal oxide semiconductor exclusive or gate
TL;DR: In this article, a complementary metal oxide semiconductor (CMOS) exclusive OR gate is shown having a minimum number of devices for performing the exclusive OR function, which is performed by utilizing the normal two input signals as logic indicating signals and generating a control signal which is a complement of one of the two logic signals.
Patent
Logic gating system and method
TL;DR: In this article, the first and second subsets are of one conductivity type while the first, second and third additional devices are of another conductivities type, and first logic signals are applied to the first subsets for turning on the first subset and the first additional device for producing at the first gate output a first function of the first logic signal.
Patent
Exclusive and/or circuit device
TL;DR: In this paper, an exclusive AND/OR circuit device consisting of a pair of first and second field-effect transistors having substantially the same properties is described, the source of one of them being connected to the gate of the other; another pair of third and fourth field effect transistors whose sources are grounded; the drains of the latter transistors being connected with the input terminal of the exclusive and/or circuit element and also to a power source through load elements respectively.