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JPH08256055A |
To lower the overhead of a circuit more and to provide a large scale long counter test method and its device. While n bits counter 18 in a test mode, when it is continuously clocked, the counter is tested by first reconfiguring the count...
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JPH08251017A |
PURPOSE: To simplify the constitution of a test control circuit. CONSTITUTION: A decoder 12 checks the contents of an internal state signal generated in the sequential circuit 11. With a test mode instruction, a closed loop consisting of...
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JP2535016B2 |
PURPOSE:To simplify a circuit and to compress the scale of hardware, by performing the detection of specific bits on plural signal lines by multiplexing the specific bit detected on each signal line. CONSTITUTION:Specific bit detecting p...
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JP2536222B2 |
PURPOSE:To suppress self-oscillation specific to a frequency dividing circuit while the difference of an input DC offset current is minimized by selecting the size of the emitter of a transistor(TR) through which a current for a slave am...
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JPH08237112A |
PURPOSE: To divide a counter circuit into plural counters of an optional bit length by allowing a register group to designate enable/inhibit a carry output A/a level of power supply and count operation of a unit counter group outputting ...
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JP2532413B2 |
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JPH08223028A |
PURPOSE: To reduce the scale and the power consumption of an apparatus and to improve the reliability of a binary counter by securing the same connection among the JK flip-flops and the logical combination circuits and controllings optio...
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JP2527781B2 |
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JP2521294B2 |
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JP2514666B2 |
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JPH08163100A |
PURPOSE: To obtain relation of quantity and a difference between two counts accurately in a method for generating a difference between two counts and its device. CONSTITUTION: A two-count difference output device providing an output of a...
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JPH08152488A |
PURPOSE: To surely measure time between start time and end time of time measurement even if counting number of a counter is insufficient while at least either of the start time and the end time of the time measurement being an event occu...
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JPH08146022A |
PURPOSE: To prevent uncounting of pulses from occurring when count value is read. CONSTITUTION: The circuit is constituted of 2n pieces of counters 1 to 4 connected in parallel on the input side, a timer 5 for shifting a measuring cycle ...
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JPH08148992A |
PURPOSE: To reduce number of test pins in the case of testing plural counters by discriminating the coincidence of all common bit outputs of the plural counters and configuring discrimination of even/odd number of 1s in a most frequent b...
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JP2500868B2 |
PURPOSE:To offer an image pickup device with a little fixed pattern noise and the counter circuit used for the device. CONSTITUTION:The counter circuit in which a gray code where the number of simultaneous change of output signals 60-65 ...
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JPH08102657A |
PURPOSE: To attain this parallel data counter circuit by slightly increasing circuit size even at the time of increasing the number of parallel data or a count value. CONSTITUTION: Adders 1, 2 add each two data out of n parallel data, in...
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JPH0894660A |
PURPOSE: To obtain a pulse measuring apparatus by which the frequency or the cycle of a pulse signal changing its frequency with the passage of time is measured with good accuracy over a wide frequency range. CONSTITUTION: Frequency info...
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JPH0888560A |
PURPOSE: To prevent erroneous detection of data by shifting a data detection signal so that the timing of the change of the output of a data output means is not within the setup time of a data detection means. CONSTITUTION: Synchronous c...
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JPH0831791B2 |
A semiconductor device constituting a frequency divider circuit, comprising circuit elements including a field effect transistor which are produced on a semi-insulating substrate, includes a means for giving a voltage higher than the low...
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JPH0884070A |
PURPOSE: To provide an asynchronous counter circuit capable of surely performing counting by using an inexpensive asynchronous counter. CONSTITUTION: The BO terminal (least significant bit) of a digital comparator 26 is set at high. When...
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JPH0884067A |
PURPOSE: To surely detect a fault that reset or set is not performed even when reset signals or set signals are inputted to respective flip-flops inside a counting circuit. CONSTITUTION: This counting circuit is provided with a fault det...
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JPH0884079A |
PURPOSE: To provide a reconstructible counter which has a small circuit area and does not consume much electric power and a pulse width modulator. CONSTITUTION: A pulse width modulator 20 incorporates a reconstructible counter 30 the wid...
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JPH0877321A |
PURPOSE: To provide the document counter which is electronic for exactly counting the number of documents up to a large numerical value at a certain degree with high reliability. CONSTITUTION: A CPU 43 in a main substrate 41 counts the n...
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JPH0828660B2 |
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JPH0828656B2 |
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JPH0828655B2 |
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JPH089936Y2 |
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JPH0869514A |
PURPOSE: To facilitate summing up of data and to secure secrecy. CONSTITUTION: Each time an operator operates a count key 6c, a CPU 1 counts the operation and its counter value is recorded in an IC module at specific intervals of timer t...
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JPH087701Y2 |
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JPH0821854B2 |
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JPH0856150A |
PURPOSE: To correct a pulse count difference longer than the address length of a memory by detecting the pulse count difference between a reference signal and a non-reference signal, correcting the count difference when the difference ex...
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JPH0854449A |
PURPOSE: To simplify the counter of a timing generator of IC tester. CONSTITUTION: The counter groups 13(1)-13(7) of the timing generator 10 have the number of digits corresponding to low speed rate signals [R], and two sets of binary co...
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JPH0851426A |
PURPOSE: To always calculate a pulse generation rate and to execute monitoring without a detection error in a counter circuit for monitoring whether pulses are generated more than within the time (t) or not. CONSTITUTION: In a pulse gene...
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JPH0851344A |
PURPOSE: To obtain a bounce signal preventing circuit outputting the same number of bounce signals as the number of operation times of a mechanical switch by eliminating even the switch bounce signals generated at the time of turning off...
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JPH0843562A |
PURPOSE: To obtain a crystal oscillation electronic clock in which output voltage can be set to an optimum value by providing a constant-voltage circuit with a reference-voltage device and a differential amplifier whose amplification fac...
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JPH0844456A |
PURPOSE: To suppress the expansion of a hardware circuit without increasing the load on a CPU and reducing the efficiency of the whole device by recording plural timer values at a time interval counted by a timer counter by the use of a ...
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JPH0815260B2 |
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JPH0832444A |
PURPOSE: To make the size small and to facilitate the revision in the number of digits and the number of channels by using a changeover means so as to switch plural counters to be one composite counter. CONSTITUTION: A pulse signal ea is...
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JPH0832445A |
PURPOSE: To attain a secure frequency division operation by forming a delay circuit with a microstrip line on a printed circuit board and adjusting a transmission delay time by the length of the line. CONSTITUTION: A latch circuit 2-0 us...
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JPH088486B2 |
PURPOSE:To improve the reliability of a clock, by counting a 0-phase clock by an N-ary counter, delaying a generated ripple carrier by the 0-phase and a pi-phase clocks, and switching the 0-phase and the pi-phase clocks by the output sig...
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JPH083514B2 |
PURPOSE:To conduct a test in a short time by dividing cascaded counter units into >=2 with a signal outputted by a latch circuit group for preset data setting and putting them in operation. CONSTITUTION:When the cascaded counter units 11...
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JPH087585A |
PURPOSE: To obtain a count end-detecting apparatus for nonvolatile memory of the simplified structure. CONSTITUTION: A count end detecting apparatus 1 for nonvolatile memory is provided with a decoder 2 of the wired OR structure consisti...
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JPH085336A |
PURPOSE: To improve measurement resolution without increasing the frequency of a clock signal by delaying target signals so that the signals are at nearly equal interval within the period of the clock signal. CONSTITUTION: A crystal osci...
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JPH07122894B2 |
Apparatus for counting compact discs stacked on a spindle with outer portions of adjacent discs normally separated by gaps formed by central bosses of the discs in which the stack is moved vertically through the space between transmittin...
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JPH07336210A |
PURPOSE: To obtain a pulse input measurement device in which additional processing of pulse count is conducted during or after power failure even on the occurrence of power failure. CONSTITUTION: In the pulse input measurement device pro...
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JPH07120938B2 |
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JPH07120931B2 |
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JPH0753312Y2 |
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JPH07114361B2 |
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JPH07109986B2 |
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