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JPH0521246B2 |
An integrated circuit device for an electronic equipment having an internal bus, the integrated circuit device comprising a digital-to-analog converter for converting a serial digital control signal to a corresponding analog control sign...
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JPH0521245B2 |
An integrated circuit device for an electronic equipment having an internal bus, the integrated circuit device comprising a plurality of input terminals, a switch circuit connected to the plurality of input terminals for selecting any on...
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JPH0474753B2 |
This invention provides a uniquely designed switched capacitor multiplier/adder (129) which also functions as a digital-to-analog converter in a single subcircuit. The multiplier/adder, in a single operation, multiplies an analog voltage...
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JPH0473343B2 |
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JPH04318658A |
PURPOSE: To enable a signal processing unit to eliminate time loss and to speed up signal processing by improving the method to count the final output signal in a digitalized neuron circuit network. CONSTITUTION: The present signal proce...
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JPH04306016A |
PURPOSE: To provide an inverse time delay trip capable of satisfactory operation in a wide-range operation condition. CONSTITUTION: An inverse time delay circuit has an integrator 10 which receives a signal Vs indicating the voltage or t...
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JPH04284045A |
PURPOSE: To provide a device which is used for making the communication between an analog device and a digital device easier. CONSTITUTION: A device used for making communication between analog device and digital device easier is compose...
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JPH04251389A |
PURPOSE: To obtain an arithmetic unit which does not use any digital arithmetic circuit as the arithmetic unit for making arithmetic operations on plural digital signals and outputs obtained results in the form of analog signals. CONSTIT...
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JPH04245389A |
PURPOSE: To obtain the error signal between a tutor signal and an output by a simple logic circuit by using a neural network composed of a digital circuit which uses pulse density as a signal. CONSTITUTION: The AND of the NOT of the tuto...
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JPH04232516A |
PURPOSE: To optimally set delay amount of an operation clock to plural analog function modules and digital function modules without being influenced by the variance of elements on production. CONSTITUTION: A master generating circuit 50 ...
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JPH04229361A |
PURPOSE: To adapt a back-propagation learning rule by adding a learning function to a digital neural network of simple circuit constitution. CONSTITUTION: An error signal regarding a neuron is found in each step of learning and a couplin...
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JPH0450631B2 |
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JPH0442713B2 |
PURPOSE:To simplify circuit constitution by changing the analog voltage of the current output edge of a current mirror circuit based on the current difference between two current generating means. CONSTITUTION:P channel MOS transistors 1...
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JPH0496880A |
PURPOSE: To always enable an accurate arithmetic processing regardless of the magnitude of an input signal by adding or subtracting both the output signal of a limiter amplifier which is performed an positive feedback to the side of the ...
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JPH0496411A |
PURPOSE: To make an attenuation factor coincident for analog and digital signal levels by providing an analog signal level attenuation part equipped with a first analog signal attenuating means and a digital signal level attenuation part...
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JPH0442566A |
PURPOSE: To prevent from the deterioration of property of an analog circuit by separating a power source line of a digital circuit and an analog circuit in an analog/digital circuit mixed LSI, and supplying the lower source voltage than ...
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JPH0421962A |
PURPOSE: To analyze information concerning the floating state of a construction at high speed by providing a floating analysis part and a result output part to output analyzed result information analyzed by the floating analysis part. CO...
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JPH041519A |
PURPOSE:To attain a fast processing by using a normal computer by accumulating charges in a charge storage circuit by an amount corresponding to the arithmetic values of pixel signals corresponding to plural images and then finding the r...
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JPH03296308A |
PURPOSE: To obtain an output waveform with remarkably low distortion by generating a waveform data whose distortion is reduced when the data is D/A- converted by a D/A converter to be an output signal for an amplifier and writing the wav...
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JPH03124257U |
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JPH03278000A |
PURPOSE: To analyze the track of a charged particle within a short time with high accuracy by calculating the track of the charged particle according to the equation of motion of the quadratic equation of the charged particle within the ...
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JPH0376493B2 |
A circuit (10) for extracting the square root of an incoming voltage signal utilizes a four-bit up/down counter (14) to control the output duty cycle of a pair of four-bit rate multipliers (16, 18) connected in a cascaded configuration. ...
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JPH0376494B2 |
A function generator for extracting the square root or other function of a pulse width modulated input signal utilizes a ROM table (12) which contains values of the inverse of the desired function. Two eight-bit counters (26, 28) are clo...
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JPH03227177A |
PURPOSE: To execute various DSP algorithms maintaining complete general purpose processor capability by providing shared internal memory that is freely accessed by both a digital signal processor(DSP) and a general purpose processor on a...
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JPH03196658A |
PURPOSE: To enable dynamic treatment of the movement of charged particles in an electromagnetic field by subjecting the analysis area to element breakdown to treat the charge density of charged particles and current density as unknown qu...
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JPH03196357A |
PURPOSE: To facilitate wiring by providing a light source part which emits light with intensity corresponding to the output of the output part of a neuron unit and at different polarization angles, unit by unit and providing an analyzer ...
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JPH03196251A |
PURPOSE: To facilitate the wiring of a neuron simulation circuit by providing a vibration generator and a vibration detector to the output part and the input part of each neuron unit respectively and securing the connection between the o...
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JPH03196250A |
PURPOSE: To facilitate the wiring of a neuron simulation circuit by providing an oscillator to the output part of each neuron unit to oscillate the oscillation frequencies different for each unit together with a modulator which modulates...
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JPH03179942A |
PURPOSE: To save labor for engineering setting and to attain its manufacturing by providing the device with a digital signal processing circuit for outputting an interpolated digital signal and constituting the digital signal processing ...
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JPH0343665B2 |
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JPH03139921A |
PURPOSE: To highly accurately evaluate the characteristics of an A/D conversion circuit part by supplying A/D-converted digital data obtained in each sampling period to a whole bit testing circuit in samples in accordance with a cycle sy...
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JPH03132885A |
PURPOSE: To simplify the circuit constitution and to reduce the circuit scale by deriving a difference between a converted digital signal, and a digital offset value held in a register by an arithmetic circuit, and compensating an offset...
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JPH0335631B2 |
PURPOSE:To remove an offset voltage, and to reduce the number of D-A converters to only one set for every voltage generating circuit, and to reduce the cost by varying an offset bias which is in a digital signal state. CONSTITUTION:A dat...
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JPH0388508A |
PURPOSE: To mix many channels with a small number of conductors by providing an analog adding means, an A/D converting means, and a digital adding means, and performing the analog addition of parallel input data of plural channels throug...
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JPH0375976A |
PURPOSE: To prevent the malfunction of an analog processing part caused by a noise of a power source corresponding to the system clock signal synchronization by shifting relatively phases of a clock signal applied to a digital processing...
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JPH0314075A |
PURPOSE: To speed up the operation of the document retrieval device greatly by finding the evaluated value of each document by an analog arithmetic means by using key word relativity indicating the strength of relation between key words ...
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JPH03925B2 |
A high speed four quadrant multiplier is current controlled and uses a high speed differential output current digital to analog converter. Independent adjustment of the multiplying factor without changing the DC offset is accomplished. A...
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JPH02289098A |
PURPOSE: To autonomously perform desired control or intelligent interface and/or control by receiving and transmitting both of analog and digital signals after a program which can be used for a general purpose. CONSTITUTION: The output o...
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JPH02261219A |
PURPOSE: To attain extremely fast division and digitization with a more excellent differential linearity for an averaging result by using a circuit calculating a specific equation in place of a calculation of A/B, where A is an input sig...
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JPH02242375A |
PURPOSE: To execute simulation in a digital computer by showing the input signal name, the input signal value, the output signal name and the signal value of an analog circuit block with a computer program. CONSTITUTION: At the time of s...
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JPH02236791A |
PURPOSE: To prevent an integral error from being accumulated by quantization by adding the quantization error, which is generated at the time of A-D conversion, obtained by an analog subtracter to the input voltage of the next A-D conver...
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JPH02205987A |
PURPOSE: To shorten the program execution time in a central processing unit and to execute high speed processing and analog arithmetic processing by providing an analog arithmetic circuit to execute the prescribed analog arithmetic proce...
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JPH02181284A |
PURPOSE: To process the data of a large scale with a small area by using a means which converts the output value of an output terminal into a pulse signal that shows its value in the pulse width or the pulse density. CONSTITUTION: All ou...
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JPH02159124A |
PURPOSE: To attain a comparatively inexpensive monotonous 24-bit digital-analog converter by using an 8-bit digital-analog converter and a simple mutual conductance amplifier as a multiplier in a feedback circuit of a square root amplifi...
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JPH0225213B2 |
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JPH02113382A |
PURPOSE: To eliminate DC voltage offsets by constituting transistors connected with the form of a gilbert cell as multi-emitter transistors. CONSTITUTION: The multi-emitter transistors with the same constitution are provided as the trans...
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JPH02105532A |
PURPOSE: To eliminate the restriction to a layout by removing any influence of noise by surrounding and shielding the side and bottom of a current wiring with a conductive material whose one end is connected to a low impedance point. CON...
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JPH0264785A |
PURPOSE: To analyze and reconstitute source analog signals by detecting the maximum points and minimum points of respective signals and recording a time between the pair of the respective adjacent maximum point and minimum point. CONSTIT...
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JPH0219780A |
PURPOSE: To test both analog and digital circuits by providing them with mutual I/O terminals and delivering a signal selectively from a digital output terminal or an analog test signal source to an analog input terminal. CONSTITUTION: A...
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JPH02500134A |
An analog-digital correlator 10 utilizes a plurality of sample and hold cirucits 16-0 to 16-(M-1) to directly store samples of a received analog signal. Bits of a correlation pattern are shifted through stages in a correlation pattern sh...
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