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7577863 |
Addressing type frequency counter circuit
An addressing type frequency counter circuit is disclosed, which receives a multiple parameter and a clock of addressing input from an external circuit, and uses a hardware address to perform the...
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6707874 |
Multiple-output counters for analog-to-digital and digital-to-analog conversion
A machine used for digital counting which can provide multiple output counts. The machine is particularly useful in analog-to-digital (A/D) converters and in digital-to-analog (D/A) converters. The...
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6700946 |
System and method for automatic generation of an at-speed counter
Methods and systems for automatic generation of an at-speed binary counter are described. The binary counter includes a slow counter that increments when a fast counter overflows to keep up with a...
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6449327 |
Counter circuit
A system and method are presented for providing a multi-stage counter. In one embodiment, a signal propagates from the most significant bit of the counter to the least significant bit of the...
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6097781 |
Shared counter
A shared counter performs multiple counting functions in an electronic circuit, such as a memory integrated circuit. An input selection circuit selects one of M input data sets at a given time to...
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6064712 |
Autoreload loop counter
There is disclosed a loop counter reload circuit loads an initial count value into a counter and a shadow register. A count value output from the counter is changed by a predetermined displacement...
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5923718 |
Binary counter reading circuit
An asynchronous reading circuit improves reliability of data read from a binary counter. Count data generated by a binary counter 101 according to a counting clock is converted into a gray code by...
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5878250 |
Circuitry for emulating asynchronous register loading functions
Circuitry is provided that allows a register without an asynchronous loading capability to be asynchronously loaded. Logic gates are provided before and after the register. The logic gates are...
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5596616 |
Burst address sequence generator for addressing static random-access-memory devices
A burst address sequence generator includes a counter, a latch and an exclusive-OR gate. The counter is controlled by a mode signal for generating count values. The latch generates pre-address...
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5561674 |
Synchronous counter and method for propagation carry of the same
A synchronous counter performing a count operation in response to an input of a clock having a fixed frequency. The synchronous counter including a first transmission gate receiving a counter...
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5539795 |
Sector pulse generating apparatus for multiple zone recording of a disk memory
A sector pulse generating apparatus for multiple zone recording includes only first and second counters. The first counter counts reference clock pulses and outputs a present position signal. The...
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5526391 |
N+1 frequency divider counter and method therefor
An N+1 frequency divider counter (20) has a binary counter (22), ones detect circuitry (26), control logic (24), and an output flip-flop (28). The binary counter (22) counts from an initial value...
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5512846 |
Signal selecting device controlled by a serially transmitted mode signal requiring but one terminal
In a signal selecting device, a mode determination portion 61 comprises a shift register 11, a clock generating portion 20 and decoder 51. The clock generating portion 20 receives a mode signal M...
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5506878 |
Programmable clock having programmable delay and duty cycle based on a user-supplied reference clock
An input clock delay circuit includes an up counter for estimating the approximate number of internal clock cycles that occur during one cycle of the input clock signal and another up counter for...
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5477179 |
Apparatus for generating a modulated pulse signal
A device for printing an image onto a surface, such as food containers, employs a laser that is scanned across a surface to produce a latent image on a charged photosensitive surface formed on the...
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5430781 |
Variable pulse width generator circuit
A comparator is provided in the counter circuit to compare the counted value of clocks by a counter with the value of a register in which a target changing value of a comparison register which sets...
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5426387 |
Device for generating an electrical voltage of predetermined waveform, iontophoresis apparatus for transdermally administering medicinal products and electrical stimulation apparatus, which apparatuses are equipped with such a device
The device comprises a switched-mode power supply (1) equipped with an electronic switching member (T 1 ), the closing of which controls the power supply to an inductor (L 1 ) which discharges,...
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5410582 |
Reference-signal generating apparatus
A reference signal generator that operates in response to a digital control signal has an increased resolving power without the requirement for increasing the basic clock rate or increasing the bit...
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5402009 |
Pulse generator for generating a variable-width pulse having a small delay
A pulse generator has a presetting clock synchronous counter having a count enable terminal, the counter which counts up input data using a clock signal whose basic unit of time width corresponds...
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5398270 |
Data coincidence detecting circuit
A data coincidence detecting circuit including a register for receiving n-bit data, a counter for counting up until 2 n to compare the n-bit data with it, a comparator for comparing the outputs of...
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5390224 |
Clock control apparatus
A clock control apparatus having a basic period clock and a plurality of clocks with different phases from the basic period clock by t/N period, is used with an information processing unit. The...
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5383230 |
Reload-timer/counter circuit
A reload-timer/counter circuit provides a reload-timer function and a counter function commonly and selectively. The circuit is comprised of first, second, third, and fourth registers. The third...
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5381454 |
Circuit and method of resetting a data compressor/decompressor
A data compressor generates codewords representative of the location and length of a string match between an input data stream and a CAM array vocabulary table. A data decompressor looks up the...
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5376834 |
Initialization circuit for automatically establishing an output to zero or desired reference potential
A circuit for initializing the output voltage of an analog circuit includes a switch operative to connect an input of the analog circuit to a first reference potential during an initializing...
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5371773 |
Driving circuit for solid-state image sensor and counter circuit used therein
A counter circuit includes counting stages of n bits where n is a natural number. The counter circuit also includes a logic decoding circuit for determining the inputs of the counting stages, a...
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5371770 |
Pulse generating circuit for microcomputers
The invention provides a pulse generating circuit including a single timer or counter which conducts both a event base count and a subsequent time base count according to clock signals about the...
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5355397 |
Clock start up stabilization for computer systems
Utilization circuits, such as logic chip circuits, are prevented from receiving the initial one or more pulses of a train of clock pulses produced after the master system clock is started, while...
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5349621 |
Method and circuit arrangement for transmitting data blocks through a bus system
In the transmission of variable length data blocks, where data and addresses share the same bus lines, one of the other signals, which are present anyway (chip-select, CS-, read, write), indicates...
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5347559 |
Apparatus and method of data transfer between systems using different clocks
According to one aspect of the invention, an apparatus includes a first processor coupled to a first system bus to provide data to a cache and a memory, and a second processor coupled to the first...
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5347182 |
Device for indicating that an optional component is mounted on a board
The invention concerns a device for indicating the presence of optional components (01-04) that can be inserted on a microprocessor board, each component having a first pin (10) associated to a...
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5339345 |
Frequency divider circuit
A frequency divider state machine synchronously divides an input clock's frequency by 1.5. The clock divider circuit includes two storage elements which are clocked on different edges of the input...
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5325411 |
Display driving circuit
A display driving circuit includes a latch circuit provided with a resetting terminal for receiving a pulse signal having a constant period and a setting terminal, a logic product circuit for...
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5313509 |
Pulse counter with arbitrary output characteristic
A pulse counter has a programmable prescaler that divides the frequency of an input clock pulse signal by a factor designated by a code signal. A counter counts the prescaled clock pulse signal...
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5309494 |
Circuit configuration for generating logical butterfly structures
A circuit configuration includes k linking cells each generating one of k output states from two of k input states. Each of the linking cells have two counters. Each of the counters have a serial...
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5303279 |
Timer circuit
An n-bit input count value is split into high-order n-1 bits and a low-order one bit so that the overflow signal 3a of the n-1 bit counter 2 for counting the high-order n-1 bits and the output...
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5303278 |
Circuit for compensating waveform shaping error
In a capstan servo circuit, a waveform shaping error which might occur while shaping the waveform of an FG signal is suppressed to control the speed of a capstan motor stably. An FG signal from a...
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5221906 |
Program control digital pulse generator
A pulse generating circuit equipped with a data register (17) in which there are stored data to designate output terminals (14a to 14m) which generate output pulses and data to define the output...
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5214682 |
High resolution digitally controlled oscillator
A high resolution digitally controlled oscillator is in the form of a digital frequency divider, which uses calculation logic to utilize both the rising edge and the falling edge (start edge and...
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5206890 |
Counter circuit with direction of count indication
A counter circuit comprises a signal detector for providing an up/down indication signal and a count clock signal according to an up/down signal and a reference clock signal. A n-bit counter for...
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5204885 |
Method and device for evaluating a digital signal using a digital counter with LSB signal separately applied to both counter and register
A digital counting method and device for evaluating a digital signal (S S ) using a digital counter (Z) applies the digital signal (S s ) that is received by the input (ZE) of the digital counter...
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5187725 |
Data detector at output of counter
A data detector comprises a counter having a plural-bit parallel output, compensation means for compensating a shift of output times of a low order bit and a high order bit of the counter caused by...
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5170417 |
Preset number of pulses generated within given time period even when time period changes
A circuit arrangement generates a preset number of output pulses each time between two consecutive input pulses, the distance between the input pulses being subject to variation. The output pulses...
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5170416 |
Encoder duty-cycle error correction
The present invention (50) corrects duty-cycle errors generated by imperfections in encoder scales and encoder detectors. A preferred embodiment of the invention operates by detecting successive...
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5166959 |
Picosecond event timer
A circuit for time stamping event signals, e.g. zero-crossings, using coarse and fine timers. The fine timer is a circuit section which subdivides a period from a phase-locked ring-oscillator into...
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5164970 |
Cascaded driver circuit
A cascaded driver circuit has two or more stages connected to a common serial data signal line and a common clock pulse signal line. Each stage has a counter circuit for dividing the frequency of...
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5159615 |
Digital frequency detection circuit
A digital frequency detection circuit, or frequency discriminator, is implemented for use as a synchronization field detector for the synchronization field frequency in the data stream read from a...
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5157701 |
High speed counter circuit
A high speed counter employs a number of functional blocks, flexibly interconnected on a bus structure, to provide efficient and high speed implementation of arbitrary range measuring tasks. A set...
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5155748 |
Programmable multi-source IR detector
A programmable circuit for sampling an IR signal is responsive to a clock signal and a plurality of programmable factors which establish the characteristics of the sampling pattern. The circuit...
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5150390 |
High-rate pulse pattern generator
Frequency division circuits in n stages sequentially 1/2-frequency-divide an input clock signal. Pattern generating circuit generates and issues a plurality of pattern data parallel to each other...
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5109395 |
Decimetor circuit of simple construction and high speed operation
A decimetor circuit is constructed to execute an FIR filtering of "n" taps for input data sampled with a sampling frequency "f" and then to resample an output of the FIR filter at a frequency of...
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