Device for calculating trigonometric functions

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to computer engineering, specifically special-purpose computers. The technical result is achieved by a device for calculating trigonometric functions, which comprises sine and cosine registers, increment registers of the same values, two converters for converting direct code into complementary code, connected, besides by connections between said units, with a clock pulse generator, a memory unit and an argument counter.

EFFECT: method of removing limitations on an argument of calculated functions in the range from 0 to + when calculating trigonometric functions.

1 dwg

 



 

Same patents:

FIELD: computer engineering, in particular, functional transformers of angle code to sine-cosine voltages, possible use in data processing systems.

SUBSTANCE: device contains block for functional transformation of angle code to code of sine and cosine, generator of impulse pack, NOT element, registers, support voltage source, digital-analog converter, switch, capacitors, buffer repeaters, modulators, threshold block.

EFFECT: increased precision of transformation.

2 cl, 2 dwg

FIELD: computer engineering; automation, data processing and measurement technology.

SUBSTANCE: proposed converter has two registers, NOT gate, angle-code-to-sine/cosine-code functional conversion unit, two digital-to-analog converters, reference voltage supply, pulse generator, counter, two capacitors, subtracting amplifier, two modulators, threshold unit, two selector switches, two buffer followers, threshold voltage supply, comparison circuit, D flip-flop, and reference code shaper; all these components enable functional control of converter during recording pulse time and supply of signal indicating normal or abnormal operation of converter to user thereby essentially raising its self-control ability and yielding profound and reliable information.

EFFECT: enhanced comprehensiveness of control and reliability of converter output data.

1 cl, 2 dwg

The invention relates to computer technology and can be used in automatics and information measuring technique

The invention relates to computing and can be used in a hybrid analog-digital circuits and systems analog signal processing

The invention relates to analog computing can be used to build a special processor, to calculate the value of SIN (P1/2 X) at the output of the device when applying the values of X to the input device in the range from 0 to 1

The invention relates to the field of measurement technology and can be used as functional Converter to calculate values of the function arcsin X, arccos X

The invention relates to information-measuring technique and can be used in navigation systems

The invention relates to the field of computer engineering and can be used in measurement and information systems

The invention relates to the field of computer engineering and can be used in a hybrid analog-digital circuits and systems analog signal processing to determine the module of the second orthogonal component, known modules of the vector and its first orthogonal component

The invention relates to computer technology and can be used in information-measuring systems

Neurocomputer // 2553098

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to computer engineering and can be used in designing strapdown inertial reference systems which are part of automatic control systems for highly-manoeuvrable ships, aircraft, space rockets and spacecraft in particular, as well as mobile robotic systems which are characterised by operability in extreme conditions. The device includes a microprogramme control unit, two matrix neuroprocessor units, an operational device, matrix memory, a secondary power source, a communication unit, authorised access memory and an environment sensor.

EFFECT: faster matrix computations.

23 cl, 20 dwg

FIELD: physics; calculation.

SUBSTANCE: invention relates to the automatics and information-computer techniques and can be used for computation of direct trigonometric functions. The device contains the microcontroller, configuring unit, unit of configuration loading, memory block, dynamically reconfigurable logic integrated circuit.

EFFECT: decreasing of the computation time.

1 dwg

The invention relates to computer technology and can be used when modeling the dynamics and flight control of aircraft

The invention relates to computing, computer vision systems, training simulators for various purposes, and can also be used in television technician

The invention relates to computing, and in particular to devices transformations of coordinates, and can be used in specialized solvers when converting addresses of the television display

FIELD: physics; calculation.

SUBSTANCE: invention relates to the automatics and information-computer techniques and can be used for computation of direct trigonometric functions. The device contains the microcontroller, configuring unit, unit of configuration loading, memory block, dynamically reconfigurable logic integrated circuit.

EFFECT: decreasing of the computation time.

1 dwg

Neurocomputer // 2553098

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to computer engineering and can be used in designing strapdown inertial reference systems which are part of automatic control systems for highly-manoeuvrable ships, aircraft, space rockets and spacecraft in particular, as well as mobile robotic systems which are characterised by operability in extreme conditions. The device includes a microprogramme control unit, two matrix neuroprocessor units, an operational device, matrix memory, a secondary power source, a communication unit, authorised access memory and an environment sensor.

EFFECT: faster matrix computations.

23 cl, 20 dwg

FIELD: computer engineering.

SUBSTANCE: invention can be used in special-purpose computers using a binary number system with an integer format of presenting initial data. Device includes a control unit, storage shift registers, a write register, shift registers, an encoder, AND elements, adders-subtractors, logic-switching unit.

EFFECT: possibility of calculating an argument of complex numbers.

1 cl, 2 dwg

FIELD: computer engineering.

SUBSTANCE: invention relates to computer engineering and can be used on-board aircraft, as well as in simulating dynamics and controlling aircraft flight. Device for determining spatial orientation angles of aircraft, comprising an angular velocity sensor unit and a direction cosine matrix integration unit, further includes six squaring units, two multipliers, five adders, four dividers, three square-rooting devices, three inverters and three arccosine determination units, connected to each other so that, based on signals from direction cosine matrix integration unit, angles of roll, pitch and yaw can be determined. For determination of spatial orientation angles, disclosed device implements use of maximum possible number of elements of direction cosine matrix, as a result of which, by performing multiple direct measurements with due allowance for random errors, by averaging obtained values across N measurements, variance of signal estimate is reduced N times.

EFFECT: higher accuracy of determining spatial orientation angles of aircraft.

1 cl, 1 dwg

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to computer engineering, specifically special-purpose computers. The technical result is achieved by a device for calculating trigonometric functions, which comprises sine and cosine registers, increment registers of the same values, two converters for converting direct code into complementary code, connected, besides by connections between said units, with a clock pulse generator, a memory unit and an argument counter.

EFFECT: method of removing limitations on an argument of calculated functions in the range from 0 to + when calculating trigonometric functions.

1 dwg

FIELD: physics.

SUBSTANCE: device is a digital computer and can be used to speed up the calculation of the function. The method is performed by a device to calculate a function that includes the first argument register, the second argument register, the first and the second switches, an adder, a subtractor, the first, the second, the third, and the fourth memory blocks, the first, the second, and the third buffer registers, a result register, a synchronization block, a shear block with connections between them.

EFFECT: increasing the accuracy of the specified function calculation.

1 dwg

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