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JPS58205283A |
This invention concerns an analog-to-digital correlator with programmable coefficients with values of +1, -1 or 0. This correlator comprises a charge-transfer shift register to receive samples of the analog input signal for correlation, ...
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JPS58198916A |
PURPOSE: To calculate the product and sum of the values of a digital and an analog signal at a high speed without performing D/A conversion and A/D conversion by setting the capacity Cb of the capacitor of each gate block to (2b-1).C0 (C...
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JPS58195980A |
PURPOSE: To shorten processing time, by providing a multiplexer and inputting the digital output of an A/D converter to a digital function circuit selectively. CONSTITUTION: An input voltage Vx is supplied to a successive comparison type...
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JPS58195274A |
PURPOSE: To output the product of digital and analog values and to integrate the titled circuit without usinga a D/A converter and an A/D converter, by providing said circuit with plural capacitors, gate circuits and switching bodies. CO...
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JPS5850377B2 |
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JPS5848931B2 |
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JPS5848929B2 |
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JPS5848930B2 |
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JPS58186245A |
A clock recovery apparatus for generating an output clock signal locked to the phase and frequency of an input data rate which comprises a sequence of encoded data signals, comprises a data detector (10) for detecting the data signals, a...
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JPS5847737B2 |
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JPS5847736B2 |
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JPS58150149U |
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JPS58150104U |
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JPS58170142A |
PURPOSE: To avoid deterioration of the converting accuracy for a large-level signal and at the same time to obtain an effect of companding transmission for a small-level signal, by providing two D/A converting circuits and processing the...
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JPS5844257B2 |
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JPS5840421Y2 |
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JPS5840780B2 |
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JPS5833725B2 |
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JPS58119079A |
PURPOSE: To facilitate high-level processing by a simple clock by allowing a major analog shift register to add and transfer its operation output. CONSTITUTION: While an analog input is circulated in the analog shift register as a minor ...
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JPS5830605B2 |
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JPS5894021A |
PURPOSE: To generate easily an analog waveform for simulation, by using a microcomputer, a memory and a D/A converter. CONSTITUTION: A memory 2 is successively addresses with the output signal produced from an output port P1 of a microco...
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JPS5815808B2 |
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JPS5813050B2 |
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JPS5833751A |
PURPOSE: To decrease a computer load, by varying the reading period in response to the rate of change in time of an analog input. CONSTITUTION: An analog input reader 26 is started with an incorporated timer and reads analog input data f...
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JPS589970B2 |
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JPS5827271A |
PURPOSE: To complete one multiplication of complex numbers within the reference time of a memory by regarding a maltiplic and expressed by a binary number as an address in an ROM and writing the real and imaginary number parts of the mul...
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JPS5824967A |
PURPOSE:To perform averaging with high accuracy through a simple constitution, by comparing a data signal with a reference signal, and increasing or decreasing the reference signal and the data signal so as to approximate the reference s...
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JPS5812071A |
PURPOSE: To obtain a highly accurate operating device, by providing a function selecting a register inputted with the number of times of sampling for a circuit which A/D-converts an instantaneous value of an analog quantity, D/A-converts...
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JPS5810800A |
For amplitude-controlled generation of an audible signal from stored digital signals, a digital-analog conversion is carried out through changeover of the base current of a bipolar transistor which is controlled with the digital signals,...
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JPS57202161U |
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JPS57198644U |
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JPS5757721B2 |
An electric controller system includes a comparator at the input of a processor, the processor including a program memory, an operation control unit and a data memory. A digital/analog converter is provided at the processor output. Analo...
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JPS5757745B2 |
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JPS5751294B2 |
An analog signal comparator is coupled to provide its output to a data processor which has digital outputs coupled through a digital-to-analog converter to an input of the comparator, for periodically producing in the processor digital r...
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JPS5751066B2 |
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JPS5746582B2 |
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JPS57150460U |
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JPS57123074A |
PURPOSE: To enable printing in high speed and with superior quality, by a method wherein in a printing device which includes an optical signal generator comprising a liquid-crystal light valve and a liquid-crystal drive circuit, a temper...
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JPS57120150A |
PURPOSE: To simplify the constitution and to increase the practical efficiency for a peripheral circuit which is used for a digital process of analog signals, by using a single D/A converter, an analog comparator and a sample holding cir...
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JPS57119941U |
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JPS5734524B2 |
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JPS57118462U |
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JPS57112126A |
Signal comparison arrangement for comparing a first and a second analog signal with each other. For each of these signals the number of zero-crossings occurring within each measuring interval of a sequence of N consecutive measuring inte...
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JPS57105081A |
PURPOSE: To ensure the even accuracy regardless of the level of a input voltage, by providing a digital integrating function by an up-down counter and applying negative feedback to an operational amplifying circuit. CONSTITUTION: Receivi...
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JPS5728102Y2 |
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JPS5794699U |
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JPS5792242U |
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JPS5718621B2 |
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JPS5760706A |
PURPOSE: To obtain a variable frequency voltage easily, by causing a frequency to correspond to an address of an ROM after fractionalizing the frequency by a digital quantity, writing a desired voltage values in each address of the ROM a...
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JPS5715426B2 |
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