|
Match
|
Document |
Document Title |
|
|
7554368 |
Frequency adjusting circuit for CPU
A frequency adjusting circuit for a central processing unit (CPU) includes a transforming unit for transforming a change of a current signal of the CPU into a voltage signal, an amplifying unit for...
|
|
|
7511545 |
Analog duty cycle replicating frequency converter for PWM signals
An analog, duty cycle replicating frequency converter extracts duty cycle information from an input, pulse width modulated signal and generates an output pulse width modulated signal of the same...
|
|
|
7436234 |
Signal oversampling for improved S:N in reflector movement system
Eight or more transition points are generated during a given period, and are used in tracking movement of an interferometer reflector. Duty cycles of generated square waves are used to establish...
|
|
|
7348863 |
Simple time domain pulse generator
A pulse generating circuit and related method, for producing extremely narrow pulses for use in monolithic microwave integrated circuits (MMICs) for radar, high-speed sampling, pulse radio and...
|
|
|
6400205 |
Diode detection circuit
A diode detection circuit is capable of obtaining an ideal rectification voltage even the case of a minute input high-frequency voltage. The circuit includes a first diode that accepts an AC...
|
|
|
6384620 |
Signal deciding apparatus
A signal deciding apparatus which can obtain a stable digital signal OUT irrespective of an amplitude and a duty ratio of an input signal IN is provided. The input signal IN is amplified by...
|
|
|
6194936 |
Pulse generator provided with a duty-factor limiting function
In a pulse generator, a sawtooth-shaped wave generator circuit generates a sawtooth-shaped wave by charging and discharging a capacitor. The sawtooth-shaped wave is fed to a comparator that...
|
|
|
6091272 |
Low power clock squarer with tight duty cycle control
The present invention is directed to a method and apparatus for producing a square wave output signal with a clock circuit that possesses characteristics of low current consumption, relatively...
|
|
|
6031404 |
Analog-signal to square-wave-signal reshaping system with offset compensation
An analog-signal to square-wave-signal reshaping system for threshold-dependent reshaping of an analog input signal to a square wave signal; comprising an offset-inflicted reshaping circuit having...
|
|
|
5883536 |
Digital phase detector device ultilizing dither generator
A phase detector provides a digital output having a linear relationship to the phase difference between a reference signal and an applied input signal. The phase detector counts the number of...
|
|
|
5847570 |
Low jitter trigger circuit for electro-optic probing apparatus
A trigger circuit is composed of a frequency multiplying portion which receives an electric signal to be measured and multiplies its repetitive frequency so as to output a multiple signal, a...
|
|
|
5821790 |
Power line synchronization conditioner
A circuit for generating a time base signal from a power line signal produced by an alternating current (AC) power source. The circuit sets the output of a latch to a first state when a positive...
|
|
|
5767743 |
Radio frequency power amplifier having a tertiary harmonic wave feedback circuit
An RF power amplifier includes an input-side tertiary harmonic wave control circuit and an output-side tertiary harmonic wave control circuit, respectively connected to a gate and a drain of a...
|
|
|
5656961 |
High frequency clock signal distribution with high voltage output
A clock signal is distributed over a circuit board and across a connector as a sine wave. A circuit located near the clocked circuitry converts the sine wave into a same frequency square wave for...
|
|
|
5554947 |
Wave-shaping circuit with feedback circuit for adjusting central voltage level of input alternating signal
A wave-shaping circuit is provided which converts an input alternating signal into a pulse signal. The wave-shaping circuit includes a level-adjusting circuit which is designed to integrate the...
|
|
|
5548219 |
Digital two frequency generator for use in borehole heterodyne measurement systems
A system for generating two or more frequencies for a borehole heterodyne measurement system for use in measuring electromagnetic propagation properties of rock is disclosed. A precision clock...
|
|
|
5528180 |
Steerable pulse phase controller
An impedance-steerable circuit for an industrial phase controller inserts precise steerable trigger pulses in the sine and cosine excursions of a sine wave of high-energy capacitive and related...
|
|
|
5519352 |
Integrator system with variable gain feedback
An integrating circuit includes first and second amplifiers for use during a zero-integrate mode and a X10 mode, respectively. The first amplifier is a low gain amplifier to ensure stability,...
|
|
|
5504446 |
AC voltage clipper in MOS-technology
AC voltage clipper for a MOS-circuit having two input terminals (In1, In2) receiving an ac supply voltage, wherein one input terminal (In1) is connected to a point of common voltage through a first...
|
|
|
5500627 |
Precision duty cycle phase lock loop
An up/down counter within a phase locked loop is gated to count high frequency clock pulses during the first cycle of the input signal. Upon detection of a transition in the input signal indicating...
|
|
|
5498985 |
Dual comparator trigger circuit for glitch capture
A glitch trigger circuit for measuring glitches that appear on power line signals includes two comparators and two independently controllable voltage trigger levels to allow proper trigger on...
|
|
|
5477171 |
Full wave rectifier using current mirror bridge
A full wave rectifier includes an amplifier having a minus input, a plus input and an amplifier output; an input resistor connected between a circuit input and the minus input; and a current bridge...
|
|
|
5469091 |
Data slice circuit
A data slice circuit is provided for slicing the caption data or the likes included in a television signal at an optimum voltage. A product between a clock-run signal sliced by a comparator at a...
|
|
|
5442313 |
Resolution multiplying circuit
Peak and valley voltages of signals from at least two analog sensors are held by the circuit. A plurality of threshold voltages is generated from the previous peak and valley voltages of the...
|
|
|
5414354 |
Apparatus and method for generating a substantially rectangular output signal
A squaring amplifier circuit (300) generates a substantially rectangular output signal from an a.c. input signal. An amplifier stage (303) is biased at a low quiescent current by a current source...
|
|
|
5394023 |
Circuit arrangement for genrating square-shaped signals
A first input signal has successive zero amplitude crossings. A first comparator generates a first bilevel output signal responsive to the first input signal. The first comparator has a hysteresis...
|
|
|
5353019 |
Process for monitoring the output signals from a transmitting device
By rectifying, comparing and X-OR gating two signals (A,B) from a transmitting device (G) that are to be sinusoidal and have a corresponding rotational frequency, of the same amplitude, and ideally...
|
|
|
5315260 |
Apparatus for converting an AC component of a signal to a square wave
An output signal of a magnetoelectrical transducer of a capstan DC motor used in a magnetic tape recorder includes a DC offset voltage. The output signal of the transducer is coupled to a...
|
|
|
5200648 |
Emulator circuit and method for generating CMOS level clock input
A method and apparatus for generating a CMOS level clock signal from RC components for use in a microcontroller. The emulator includes an emulation chip and an emulation circuit. The emulation chip...
|
|
|
5157277 |
Clock buffer with adjustable delay and fixed duty cycle output
A clock buffer circuit for a computer system, and a computer system incorporating the same, are disclosed. The clock buffer circuit includes a differential input buffer for receiving the input...
|
|
|
5144233 |
Crankshaft angular position voltage developing apparatus having adaptive control and diode control
Apparatus for developing a series of square-wave pulses from an alternating voltage that is generated in the pick-up coil of a variable reluctance sensor that is associated with a slotted wheel...
|
|
|
5113086 |
Polarotator pulse generator circuit for a receiver of satellite broadcasting
A polarotator pulse generator circuit is disclosed in which a sine-to-square converter converts a sine wave of AC power supply to a square wave, a clock synchronizer synchronizes the square ware of...
|
|
|
5107135 |
Sinusoidal-to-squarewave converter with variable thereshold level
A bivalent signal generating circuit in which an input signal having a substantial sinusoidal waveform can be converted to a bivalent signal without causing chattering: in this bivalent signal...
|
|
|
4922126 |
Circuit for shaping a measurement-signal voltage into a square-wave signal
To derive a stable square-wave signal from a measurement-signal voltage obtained from a voltage divider and containing a DC component and an AC component, the low end of the voltage divider is...
|
|
|
4885475 |
Precision 50 percent duty cycle controller
A sine wave locked in phase and frequency to a carrier having a high second harmonic content, carrying information on the magnitude of a parameter, is applied to an open loop operational amplifier...
|
|
|
4835415 |
Circuit for amplifying and shaping an AC signal
A circuit for amplifying a measurement signal having an AC component and obtained from the tap of a voltage divider which is connected via a dropping resistor to a supply voltage and includes at...
|
|
|
4825178 |
Oscillator with noise rejection and square wave output
An oscillator with noise rejection which may be used in a gate array in a semiconductor chip including a first amplifier circuit, a circuit, for connecting an external feedback element (crystal)...
|
|
|
4728815 |
Data shaping circuit
A circuit for producing output pulses in response to an alternating signal supplied to the input thereof which is comprised of a pair of complementary transistors cascoded between a pair of current...
|
|
|
4703281 |
Clocking pulse generator
A clocking pulse generator includes means for receiving voltage from a multi-phase alternating current electrical power source. A vector summing circuit provides a non-zero resultant vector for...
|
|
|
4686385 |
Waveform converter circuit
A waveform converter circuit for producing an output square waveform, having a unity mark/space ratio, from an input sinusoidal waveform which can have a large peak-to-peak amplitude range and a...
|
|
|
4672642 |
Circuit for generating a clock signal at an AC line frequency
A periodic signal, at the frequency of the AC mains supply voltage, contains signal pulses, each having a duration that is substantially shorter than half the period of the AC mains supply voltage....
|
|
|
4638255 |
Rectangular wave pulse generators
The present disclosure of the invention is directed to rectangular wave pulse generators. The rectangular wave pulse generators comprise a circuit for providing a train of voltage pulses each...
|
|
|
4634983 |
Circuit arrangement for converting an a.c. signal into a binary signal
The described circuit arrangement converts an alternating current signal into a binary signal when the level of the alternating current signal exceeds an initial threshold voltage. During the...
|
|
|
4613973 |
Digital data decoder and method
A system, including methods and apparatus, requiring digital communication between two devices using radio frequency communications to provide the link. Apparatus for decoding a digital data stream...
|
|
|
4563741 |
Rotational angle signal generating system for internal combustion engines
A rotational angle signal generating system for an internal combustion engine produces its signal from the a.c. signal generated by a magneto-generator mounted in the ignition distributor of the...
|
|
|
4507571 |
Optically coupled input circuit for digital control
An a.c. input circuit for converting a sensed a.c. voltage into a logic level voltage includes a rectifier for converting the sensed a.c. voltage to a d.c. voltage which is supplied through a...
|
|
|
4335301 |
Wave shaping circuit for electro-optical code readers
An electrical output signal from an electro-optical code reader is amplified (U1) to develop a first signal which is applied to a positive peak detector (U2D1, C2) and a negative peak detector (U3,...
|
|
|
4300059 |
Sequential logical electronic circuit controlling the discharge of controllable semiconductors
The present disclosure refers to a sequential logical electronic circuit for operating the discharge gates of a plurality of controllable semiconductors with the object of regulating outputs of...
|
|
|
4291240 |
Two output clock for integrated semiconductor digital circuits
A pulse converter for transforming periodic signals of any waveform into two output series of digital pulses such that the duty cycle of one of the series is temporarily separated from the duty...
|
|
|
4283639 |
Device for producing two clock pulse trains from a periodic signal of any waveform
A device for producing two clock pulse trains from a periodic signal comprised of waveforms of any shape produces digital pulses having the same period and further having respective duty cycles...
|