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JPH024001A |
PURPOSE: To correct an element network by a digital control by arranging a unit element group having individually different inherent characteristics of optional batteries substantially in parallel or like a matrix. CONSTITUTION: Plural p...
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JPH01177660U |
An image signal processing device includes an A/D converter which detects a white peak level of an analog image signal corresponding to the intensity of light obtained by an optical scan and for outputting a corresponding digital signal ...
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JPH0141233Y2 |
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JPH01292482A |
PURPOSE: To suppress overhead for an interface between a digital part and an analog part at its minimum and to efficiently simulate a large D/A coexisting circuit including a feedback loop by dividing the D/A converter into blocks and ex...
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JPH0146835B2 |
A digital phase detector includes a hard limiter which transforms an incoming signal of known frequency into a binary signal at the same frequency. A reference generator produces two binary references at the signal frequency, one referen...
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JPH0144055B2 |
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JPH0140525B2 |
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JPH01171076A |
PURPOSE:To cause the consuming rate of necessary memory capacity to be small by converting an inputted analog data value to a digital data value, converting again the value to the analog data value, dividing a voltage into 1/n, executing...
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JPH01164124A |
PURPOSE: To decrease the number of parts of an IC and to reduce the area of the IC by converting the binary weighted sum into the analog value. CONSTITUTION: The current sources 23A and 23B of every cell are placed in parallel to each ot...
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JPH01501436A |
A method and apparatus for converting a digital signal into a band-limited analog signal with variable bandwidths, a high level of performance, high spurious frequency rejection, and simple implementation, employing polyphase interpolati...
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JPH0116165Y2 |
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JPH0123807B2 |
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JPH0122956B2 |
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JPH0122955B2 |
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JPS6478029A |
PURPOSE: To obtain the computed result of a product even when a digital input values shows a negative value by providing a complementary operation circuit at an A/D converter in which an encoder circuit provided with a control circuit is...
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JPH0115912B2 |
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JPS6468130A |
PURPOSE: To obtain a semiconductor integrated circuit having an analog input digital multiplier in high speed and with high accuracy by converting the result of multiplication of two analog inputs into a binary code digital data by an en...
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JPS6461121A |
PURPOSE: To decrease the wiring region by applying multiplication with a selected selection discrimination output as a multiplier and a digital input as a multiplicand and adding a digital input shifted to the high-order by a prescribed ...
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JPH0113247B2 |
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JPS6410874B2 |
In a graphic display system a plurality of sets of first, second and third geometrical digital signals and a pictorial signal are stored in a memory and read therefrom at the raster speed of a display unit into plural latches with which ...
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JPS6410873B2 |
PURPOSE:To speed up drawing by calculating a picture drawing address by an interpolating device that works as a single function interpolating arithmetic unit constituting hardware. CONSTITUTION:The difference DELTAY of the coordinate val...
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JPS6410130B2 |
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JPS644880A |
PURPOSE: To eliminate the need of an inversion amplifier of the gain for which high accuracy is required, by using a clamping circuit. CONSTITUTION: The titled unit is provided with a second CCD 12 to which a signal of N bits is inputted...
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JPS63290413A |
PURPOSE: To reduce the circuit scale and the arithmetic speed by using a bit signal of a prescribed multiple factor so as to switch an output current of a prescribed current mirror circuit respectively and obtaining its total sum. CONSTI...
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JPS63217219A |
PURPOSE:To attain R/D conversion even for a resolver signal which varies stepwise by 180 deg. by inputting a certain voltage to a voltage-controlled oscillator and operating a reversible counter according to a decision on a difference in...
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JPS63215915A |
PURPOSE:To enable the following of a resolver signal rotating at a high speed, by a method wherein an output value of a phase detector is converted into digital from analog and added to a digital value to vary digital values at a time. C...
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JPS63215914A |
PURPOSE:To enable the conversion of a synchronous signal into a digital signal varying by 180 deg. in step, by judging a cos value of an angle difference between the synchronous signal and an output signal of a S/D (synchro-digital) conv...
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JPS63209209A |
PURPOSE: To minimize the influence of the converting error of an A/D conversion and to prevent the deterioration of S/N providing a means to attenuate to an A/D converted digital signal to the value in which the digital signal processing...
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JPS6342309B2 |
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JPS63197119A |
PURPOSE: To extract the result of multiplication of n×m-bit by constituting an encoder circuit of an n-bit serial/parallel comparison system A/D converter by a control signal generating circuit by m/2-bit digital input and a control cir...
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JPS63121987A |
PURPOSE: To obtain the minimal solution of a problem with an optional n-degree polynominal as an evaluation function by connecting amplifiers by means of computing elements calculating a sum of an n-degree polynominal. CONSTITUTION: The ...
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JPS63115424A |
PURPOSE: To obtain a semiconductor integrated circuit having a high function, a high working speed and a high degree of integration, by processing directly the output of a comparator and having output of the product of both analog and di...
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JPS62279478A |
PURPOSE: To execute an arithmetic conversion of a high luminance of an image sensor output, and to obtain a good image signal extending over a wide dynamic range, by setting an average value of every picture element of a dark current at ...
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JPS62217380A |
PURPOSE: To obtain the degree of correlation which scarcely causes an operation delay, by a simple constitution, by corresponding an input digital signal with a code pattern set in advance at every bit, synthesizing the signals of dissid...
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JPS62146244U |
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JPS6230670B2 |
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JPS62138936A |
A cellular array processor chip includes a common bus communicating with the individual cells thereof. The common bus can be monitored during chip testing to detect the presence, or absence, of a defective cell. Each cell can be inactiva...
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JPS6296758U |
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JPS62114071A |
A network comprising analog amplifiers (10) with a resistive interconnection matrix (20) that connects each amplifier output to the input of all other amplifiers. The connections embodied in the matrix are achieved with conductances whos...
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JPS6210452B2 |
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JPS6210453B2 |
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JPS6242068A |
A digital representation of the time-integral of the illumination-dependent electric current flowing in a photo- conductive diode (1) is produced by feeding the current initially to the first (3a) of a series of capacitors (3a-3d). When ...
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JPS627585B2 |
Circuitry and method for adding, subtracting, multiplying and/or dividing a plurality of multi-bit, arbitrarily signed, changeable, coded digital input signals representing numerical values to convert said signals into a single analog ou...
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JPS6233302A |
PURPOSE: To attain recording/reproduction of a digital and an analog data by using a magnetic tape having plural tracks to record the digital and the analog data on the tracks. CONSTITUTION: When a data or a program to be written is fed ...
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JPS61293024A |
A D/A/ converter for use in a microprocessor comprises first and second timers (3A, 3B), first and second modulus latches (2A, 2B) associated respectively with said first and second timers for holding respective digital values, the timer...
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JPS6142192Y2 |
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JPS61256826A |
PURPOSE: To make a D/A conversion output being a product among plural digital input signals from one D/A converter by controlling a switched capacitor provided between an integration circuit and a constant current circuit depending on th...
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JPS6146873B2 |
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JPS61160558U |
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JPS61221975A |
PURPOSE: To obtain the mean value of data on four samples with simple constitution by using an arithmetic circuit to calculate the mean value of the count value of reference clock signals equivalent to four cycles. CONSTITUTION: When a c...
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