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6870929 |
High throughput system for encryption and other data operations
According to one embodiment, an encryption system ( 500 ) includes an input buffer ( 504 ) that can provide data blocks from different contexts ( 522 - 1 to 522 -n) to a selected encryption...
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6430585 |
Noise tolerant conductance-based logic gate and methods of operation and manufacturing thereof
A logic gate, an adder and methods of operating and manufacturing the same. In one embodiment, the logic gate includes: (1) a summer, having at least two single-bit inputs and a noise-suppression...
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6205458 |
Adder and multiplier circuits employing logic gates having discrete, weighted inputs and methods of performing combinatorial operations therewith
A circuit and method for deriving an adder output bit from adder input bits, a multiplier circuit, a method of multiplying, a microprocessor and digital signal processor (DSP) employing the circuit...
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6119141 |
Resistive decoupling of function selection signals from input multiplexers in arithmetic logical units ALU
The function selection signal of an ALU is resistively decoupled or serially coupled to the input multiplexers of the ALU. By producing delayed function selection signals and decoupling the delayed...
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6119048 |
Integrated circuit for processing digital signal
A digital signal process of a plurality of functions is enabled by a common hardware constructed on one chip having input terminals t1, t2 and t2'; output terminals t3 and t4; and a control signal...
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5892890 |
Computer system with parallel processor for pixel arithmetic
A pixel processor, for use in conjunction with a color video monitor or an all points addressable color print engine, includes brush logic, mask logic, clip logic, and a multi-pixel logic unit to...
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5442577 |
Sign-extension of immediate constants in an alu
An arithmetic-logic unit (ALU) includes a Boolean logic unit and an integer logic unit, both of which are adapted to incorporate the sign extension function for immediate constants or reduced-width...
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5327364 |
Arithmetic logic unit for microprocessor with sign bit extended
An arithmetic logic unit for a microprocessor is shown and described for use in a 24-bit data path where the ALU includes three separate ALU portions, one for each byte of the data path, and three...
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5130704 |
Logic operation circuit
A logic operation circuit includes an instruction signal generating circuit for generating an instruction signal which designates a bit of a predetermined n-bit code signal in accordance with a...
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5055712 |
Register file with programmable control, decode and/or data manipulation
A programmable logic device is constructed having a novel architecture. A plurality of control input signals are applied to a programmable mapping array in order to generate control functions for...
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4875181 |
Method of apparatus for realizing a logical operation by modifying a flow of energy
A device for realizing logical operations operates extremely fast and exhibits the particular advantage that it can be converted from one logical operation to another so that a plurality of logical...
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4860235 |
Arithmetic unit with alternate mark inversion (AMI) coding
An arithmetic unit having true and false deciding circuits (21 to 24) for receiving a first input signal A and a second input signal B to output the second input signal or complement of the same in...
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4823295 |
High speed signal processor
A high speed signal processor contains a set of repetitive architecture functional units including an input data storage unit for storing quantized data values, a data shifting unit, an output data...
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4218747 |
Arithmetic and logic unit using basic cells
An arithmetic and logic unit (ALU) formed by a small number of different types of basic cells suitable for cellular integration to form large scale integrated (LSI) semiconductor circuits. The...
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4157589 |
Arithmetic logic apparatus
A system includes arithmetic logic units, each including two 2:1 multiplexers, one 8:1 multiplexer, and a three input majority gate. Each 2:1 multiplexer provides a specific one of two data inputs...
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4064421 |
High speed modular arithmetic apparatus having a mask generator and a priority encoder
In a high speed arithmetic apparatus, the tally coded output of a modular mask generator addressed by a binary first operand and the tally coded input of a priority encoder are joined together by...
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3925651 |
Current mode arithmetic logic array
An arithmetic logic array employing soft-saturating current mode logic gates receives two binary input signals and a binary operation mode signal and includes a half-adder and logic function...
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3811039 |
BINARY ARITHMETIC, LOGICAL AND SHIFTER UNIT
The arithmetic logic unit and position scaler receives information from a data bus, provides arithmetic functions such as add, logical AND and exclusive OR, and shift manipulations to the...
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3752394 |
MODULAR ARITHMETIC AND LOGIC UNIT
A modular and arithmetic logic unit (ALU) for performing logic functions of AND, OR and exclusive OR and arithmetic functions of binary and decimal subtract/add where decimal subtract/add operates...
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3751650 |
VARIABLE LENGTH ARITHMETIC UNIT
An arithmetic unit in which a plurality of arithmetic and logic functions are performed using either one or both of two inputs X and Y, each input providing a variable number of bits in parallel....
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3700868 |
LOGICAL FUNCTION GENERATOR
Apparatus and technique for generating logical functions and circuits, and for defining the circuit connections required to generate these functions thereby providing an aid in designing and...
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3676656 |
ELECTRONIC DIGITAL SLIDE RULE
An electronic digital slide rule in the form of a small hand-carried, battery powered digital electronic calculator capable of performing substantially all of the mathematical operations performed...
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3596074 |
SERIAL BY CHARACTER MULTIFUNCTIONAL MODULAR UNIT
An arithmetic and logic unit consisting of a plurality of interconnected logic modules, each module operating as a subtracter in a manner that one operand is base data and the other is a modifier...
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3584207 |
ARRANGEMENT FOR CARRYING OUT ALTERNATIVELY ADDITION OR ONE OF A NUMBER OF LOGICAL FUNCTIONS BETWEEN THE CONTENTS IN A POSITION OF TWO BINARY WORDS
There is disclosed a multicell arithmetic unit which can either perform an addition of two binary words or one of a plurality of logical operations on the two binary words. Each cell of the unit...
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3584205 |
BINARY ARITHMETIC AND LOGIC MANIPULATOR
A programmable binary arithmetic and logic manipulator which comprises a rectangular array of (M) (N+1) logic cells and N+1 columnar control cells. The columnar control cells are designated as U...
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3400259 |
Multifunction adder including multistage carry chain register with conditioning means
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3388239 |
Adder
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3308285 |
Logic networks for realizing associative logic functions
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3252004 |
Multistate memory circuit
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2981471 |
Information manipulating apparatus
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