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JPH0479412A |
PURPOSE: To change the frequency division ratio in a wide range with a small amount of hardware and to obtain a counter circuit capable of counting many pulses by properly using a count register consisting of plural bits for a frequency ...
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JPH0472815A |
PURPOSE: To correct an error of a read value completely on the occurrence of carry from a low-order counter to a high-order counter by inputting a count output bit by N bits lower than a most significant count output bit of the low- orde...
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JPH0461420A |
PURPOSE: To attain high speed processing by compensating a deviation in an output time between a low-order bit and a high-order bit of a counter caused when a carry takes place from the low-order bit to the high-order bit and detecting t...
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JPH0411133B2 |
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JPH0411134B2 |
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JPH0443715A |
PURPOSE: To set an initial value even when an initial set signal is activated simultaneously with a holding signal by controlling the advance and hold of the counted value depending on the holding signal. CONSTITUTION: The holding signal...
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JPH0440116A |
PURPOSE: To obtain an arbitrary divided frequency by outputting a thinning-out data, which is provided on a memory, to clock synchronizing serial communication. CONSTITUTION: In the clock synchronizing serial communication, a parallel da...
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JPH047133B2 |
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JPH0437314A |
PURPOSE: To simplify the test of a circuit to be tested and to decrease the test time by adding an initial value setting circuit to the frequency dividing circuit so that the phase of a basic clock and a 1/2 frequency division clock is a...
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JPH0437904A |
PURPOSE:To enable a counter device to perform its counting action while skipping over the count value of an optional range by correcting the count value of a counter by a desired amount when the count value is coincident with a desired l...
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JPH046134B2 |
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JPH046110B2 |
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JPH0410434U |
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JPH0423613A |
PURPOSE: To allow a microcomputer to read out a pulse counting data even with a high frequency pulse input by adding a storage circuit to a pulse counting circuit. CONSTITUTION: A storage circuit 5 is connected to the post stage of a cou...
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JPH042504Y2 |
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JPH042505Y2 |
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JPH043132B2 |
A counting circuit includes a digital counter for counting the pulses of an input signal during a counting interval and a pair of digital latches for latching the binary state of the input signal at the beginning and end of the counting ...
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JPH043129B2 |
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JPH043517A |
PURPOSE: To improve the test efficiency by providing 1st-m-th OR circuit ORing a carry input signal of 1st-m-th counters and a specific test signal between stages of the 1st-m-th counters and counting simultaneously the 1st-m-th counter....
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JPH04417B2 |
A possibility to check a binary counter for proper operation is to duplicate the counter. The isochronism of the counters (CNT) can be checked by comparing the counting positions. If in a system two counters are, for example, required wh...
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JPH03287012A |
PURPOSE:To obtain the counter which has high resolution by multiplying two sine waves which have a specific phase difference and generating two rectangular wave signals, and detecting and counting their rise and fall. CONSTITUTION:A sine...
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JPH0378586B2 |
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JPH0378008B2 |
PURPOSE:To ensure a high-speed operation of a frequency divider with a simple circuit constitution by applying simultaneously the input signals shorter than the current transfer time of a current flip-flop to two Josephson elements. CONS...
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JPH03280715A |
PURPOSE: To terminate the confirmation of the operation of a counter in a short time by enabling each counter only when the operation of the counter is confirmed and outputting an output of each counter from a respective output terminal....
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JPH03276920A |
PURPOSE: To prevent generation of self-oscillation even when an input signal application terminal is opened by providing a resistor between the input signal application terminal and a complementary input signal application terminal of an...
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JPH0376060B2 |
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JPH03267820A |
PURPOSE: To attain count without malfunction even to a high speed clock by providing a frequency divider applying 1/N frequency division to an input clock, and outputting N series of frequency division signals whose phases are deviated b...
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JPH03263283A |
PURPOSE: To eliminate the necessity of unit conversion and to improve the operation convenience by setting the number of carrying a count value and a display unit by an operation part and displaying a display unit corresponding to this s...
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JPH0373176B2 |
A clock generator circuit of this invention is for an integrated circuit which is controlled by clock signals obtained by frequency-dividing a standard clock. Three flip-flops, two of which are connected in series, and two logical gates ...
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JPH0373178B2 |
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JPH0373179B2 |
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JPH03259618A |
PURPOSE: To decrease the pattern number of a test data and a test pin by providing a pattern generating circuit and a selector to prevent the output count of a storage element every time the output data of an adder received via the selec...
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JPH03258019A |
PURPOSE: To eliminate the need for a cost for the system and to set the frequency division ratio freely by subtracting the counting operation number of times of a pulse signal by the prescribed number for each count signal input, and out...
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JPH03254215A |
PURPOSE: To obtain a pulse output from each stage counter in a short time by providing an enable signal transmission means enabling a next-stage counter in place of a carryout signal when a control signal in the test mode is inputted to ...
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JPH0352041Y2 |
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JPH0368567B2 |
PURPOSE:To obtain a circuit not affecting malfunction to the post-stage circuits even when an output of an FF of the pre-stage reaches an intermediate level by an asynchronous input by using an activated signal of the post-stage so as to...
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JPH0368322B2 |
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JPH0349474Y2 |
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JPH03234117A |
PURPOSE: To attain the conduction/interruption of a power supply current while an operating section is connected to a power line as it is by turning on/off a switching element with an external signal to generate a control voltage and usi...
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JPH0365053B2 |
An improved counter wherein consecutively cascaded flip-flops of the prior art are divided into two groups. A first detector produces a first signal in response to a predetermined set of flip-flop states of the first group. A second dete...
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JPH03227120A |
PURPOSE: To surely propagate an asynchronous clock signal and to ensure a carry to a succeeding counter section by providing a delay inversion circuit and setting its delay time longer than the propagation delay time of an n-ary counter ...
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JPH0363851B2 |
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JPH03218119A |
PURPOSE: To take synchronization of two counters in a short time with simple constitution by detecting that an output of one counter and an output of the other counter are in a different logic state and controlling the one counter with a...
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JPH0361890B2 |
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JPH0345143Y2 |
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JPH03191616A |
PURPOSE: To exactly detect the malfunction of a counter circuit and to improve the reliability by providing plural sequence logic circuits for counting separately the same input signal with each different circuit constitution, and a comp...
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JPH03190427A |
PURPOSE: To attain optional irregular frequency division by writing a frequency division data to a ROM in advance, reading it and shifting the data one by one bit each. CONSTITUTION: A reference clock 16 outputted from a reference clock ...
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JPH0353955B2 |
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JPH0352254B2 |
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JPH03171819A |
PURPOSE: To count a large number of events by a small memory with good resolution by using linearly arrayed memory cells and a binary register for storing high-level data and making variation from 1 to 0, after all the cells in the linea...
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