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7580434 |
Dual laser driver architecture in an optical transceiver
Embodiments disclosed herein relate to a dual laser driver architecture configured to be implemented on a single IC chip. The dual laser driver architecture includes at least a first laser driver...
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7489173 |
Signal adjustment for duty cycle control
Signal phase adjustment for duty cycle control is described. A first sample clock signal and a second sample clock signal are provided. A first phase signal and a second phase signal are generated...
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7227387 |
Measuring pulse edge delay value relative to a clock using multiple delay devices to address a memory to access the delay value
A pulse width measurement system is provided with components in an FPGA so that pulse widths can be measured that are smaller than the frequency limits of the FPGA system clock. For the...
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6960951 |
Circuit for detecting a logic transition with improved stability of the length of a detection signal pulse
A circuit for detecting a logic transition is proposed. The circuit includes an input terminal for receiving a logic signal, an output terminal for generating a detection signal, two capacitors, in...
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5995444 |
Edge transition detection control of a memory device
The pulse width of an internal edge transition detection signal of a memory device is selectably varied by varying the logic state of one or more control signals of the memory device. A number of...
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5923191 |
Device and a method for monitoring a system clock signal
A system clock signal monitor that monitors a system clock signal by comparing a pulse width of a logic high pulse and a pulse width of a logic low pulse of each system clock duty cycle of the...
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5696463 |
Address transition detecting circuit which generates constant pulse width signal
An address transition detecting circuit comprising a first address transition detecting stage for generating a first address transition detection signal, the first address transition detection...
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5686855 |
Process monitor for CMOS integrated circuits
A process monitor for a CMOS integrated circuit includes first and second delay units that are connected in a ring to constitute a ring oscillator that generates pulses having different phases at...
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5631596 |
Process monitor for CMOS integrated circuits
A process for evaluating acceptability of a digital circuit having a first type of circuit element for a first change of state and a second type of circuit element for a second change of state, the...
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5479118 |
Pulse width discriminating circuit
A pulse width discriminating circuit comprises an edge detecting circuit receiving an input signal for generating a detection signal when the input signal rises up, first to third counters each...
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5430403 |
Field effect transistor with switchable body to source connection
To avoid forward biasing the diodes within an N-channel transistor, the body and source of the N-channel transistor are switchably connected via a high-voltage FET. The gates of the N-channel...
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4857760 |
Bipolar glitch detector circuit
A circuit for detecting positive and negative pulses of a predetermined maximum duration of an input signal includes a first monostable circuit for generating a first pulse having a duration equal...
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4745365 |
Digital receiver with dual references
A pair of comparators is provided with attenuated input signals. Each comparator is provided with a different reference level so that two sets of complementary digital outputs may be obtained with...
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4710653 |
Edge detector circuit and oscillator using same
A circuit useful as an edge detector or pulse width encoder which receives an input signal and supplies a logic output signal includes a delay and inverting circuit for logically inverting and...
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4670665 |
Digital pulse width detector
Apparatus for passing digital pulses from a bilevel digital signal source having widths wider than a given minimum and narrower than a given maximum is described. A first duration sensitive signal...
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4634984 |
Duration-sensitive digital signal gate
One-bit stream of clocked control information is applied to the input of delay means, having a succession of signal takeoff points, with the delay between successive takeoff points being the same...
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4583008 |
Retriggerable edge detector for edge-actuated internally clocked parts
A retriggerable edge detector is provided having a means for receiving digital input signals, at least two signal transmitting paths connected to that signal receiving means, one of which paths...
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4571514 |
Amplitude adjusted pulse width discriminator and method therefor
An amplitude adjusted pulse width discriminator and method therefor wherein a received video pulse is sampled and held when it crosses a threshold. An indication of a valid pulse being present is...
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4475086 |
Duty cycle detector
Apparatus is disclosed for determining whether the duty cycle of a periodic signal produced by an incremental encoder is within a predetermined acceptable range. The apparatus includes an...
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4403193 |
Pulse detection circuit
A pulse detection circuit, for detecting pulses contained in output signals derived from an encoder such as rotary encoder which converts any physical quantity like spatial position, displacement...
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4399412 |
Duty cycle monitor circuit
A duty cycle monitor circuit which detects variations in the duty cycle of a monitored pulse by comparing its duty cycle with the pulse width of an external reference signal. A detection circuit...
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4223267 |
Circuit arrangement for measuring pulse widths
A pulse width measuring apparatus including a threshold-level trigger, which receives the pulses to be measured and a threshold voltage. At the instant at which the pulse voltage exceeds the...
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4214270 |
Digital vertical sync signal separator
A signal detector circuit comprises a plurality of series-connected data latch circuits. An input signal and clock signals are applied to the first data latch circuit, the clock signals being...
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4086538 |
Gated pulse generator
A gated pulse generator produces on output pulse for every period in which an input signal is continuously in a particular state for longer than a minimum gating interval. If the input signal...
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3984694 |
Pulse width regulator for a pulsed neutron source
A pulsed neutron system includes an accelerator tube having a target, an ionization section, and a replenisher for supplying accelerator gas. The power supplied to the replenisher is controlled to...
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3980960 |
Signal width and width ratio determining apparatus
Apparatus for determining whether the ratio of the widths of a pair of signals is within acceptable limits including integrator means, including a first integrator responsive to a first signal to...
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3949293 |
Apparatus and method for detecting a moving metal mass including means to discriminate signals having a particular period
In an electronic detection system, signals indicative of a detected mass of material are related to a selected mass velocity and a detection aperture through which the mass is moved. The pulse...
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3944982 |
Remote control system for electric apparatus
A remote control system for selectively controlling plural functions of electric apparatus comprising a combination of an improved transmitter for generating a command signal of a single frequency...
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3938038 |
Method and apparatus for providing primary coincidence correction during particle analysis
A method and apparatus are disclosed wherein each particle pulse developed in response to passage of particles in a particulate system through a sensing zone is integrated to develop a first...
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3906379 |
Threshold error compensator for pulse width measurement circuit
A threshold error compensator circuit responsive to an input signal and a pulse derived therefrom and having a width determined by the width of the input signal at a predetermined relative...
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3835336 |
PULSE WIDTH SENSING CIRCUIT
A circuit for producing an output signal indicative of the presence of an input signal of duration greater than a given duration, T. The circuit includes a first stage which in response to a...
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3831039 |
SIGNAL RECOGNITION CIRCUITRY
Signal recognition circuitry provides a control signal which is initiated following the receipt of successive input signals provided they are spaced less than a first duration apart and have been...
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3801828 |
PULSE WIDTH DISCRIMINATOR
A pulse width discriminator is disclosed which discriminates between horizontal sync pulses and vertical sync pulses by producing an output pulse in response to the trailing edge of each horizontal...
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3800234 |
METHOD FOR IDENTIFICATION OF DIFFERENT TIME INTERVALS BETWEEN PULSES IN AN ELECTRICAL PULSE TRAIN AND A DEVICE FOR PERFORMING THE METHOD
A method and circuit for detecting two different time intervals between consecutive pulses of a pulse train includes a first counter to provide a count value which represents the elapsed time...
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3794854 |
SIGNAL SENSING AND STORAGE CIRCUIT
Circuit for distinguishing signals of relatively long duration (information) on a plurality of input lines from one or more signals of relatively short duration (noise) on these same lines. Any...
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3790881 |
PULSE WIDTH SELECTOR
An apparatus for accepting or rejecting pulses on the basis of pulse duration. Each pulse in an incoming pulse train is clocked into a first shift register, while a counter records the duration of...
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3772534 |
LOW POWER, HIGH SPEED, PULSE WIDTH DISCRIMINATOR
A pulse width discriminator which compares a received pulse with a reference pulse of specified width and produces an output pulse whenever the received pulse width is less than the width of the...
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3753135 |
PULSE WIDTH DISCRIMINATOR
An output pulse connects a timing pulse source to a first counter. A first flip flop produces a 1 level when a predetermined count is exceeded. A negative transition of the input pulse interrupts...
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3713145 |
PULSE WIDTH CONTROL FOR RADAR TRANSPONDERS
A radar transponder is disclosed which discriminates between the lengths of the pulses received and retransmits a pulse of one length upon receipt of a pulse of a short time duration and...
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3705358 |
DIGITAL PRF FILTER
A pulse repetition frequency (PRF) filter circuit for selectively passing pulse trains over a wide bandwidth. The filter circuit utilizes the pulse repetition interval (PRI) between the first and...
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3699949 |
PULSE JITTER MEASUREMENT ESPECIALLY FOR HEART BEAT MEASUREMENT
Apparatus for measuring the difference in intervals between pulses of a pulse train and providing a continuous output indicative of the interval variation or the pulse jitter. Circuitry having the...
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3667054 |
PULSE TRAIN DECODER WITH PULSE WIDTH REJECTION
Logic circuitry to decode a series of pulses in an IFF system. Decoding is accomplished by sensing the presence of multiple pulses in a distinct time relationship with each other and excluding...
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3660680 |
FAIL-SAFE DUTY CYCLE CHECKING CIRCUIT
This invention relates to a fail-safe duty cycle checking circuit comprising an amplifier circuit having a first input for receiving a square wave of fixed peak to peak amplitude and a second input...
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3634869 |
INTERPULSE TIME INTERVAL DETECTION CIRCUIT
Circuit for producing an output signal when a group of serial input signals, which are separated by decreasing intervals of time, are separated by a given interval of time. The input signals set a...
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3609555 |
DIGITAL FM RECEIVER
A digital FM receiver for receiving information in the form of analog signals on a frequency-modulated carrier at its input and providing said information in digital form at its output. The input...
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3601706 |
PULSE INTERVAL DECODER
A system for determining the average length of intervals between pulses in a finite train, including a pulse counter, two alternately operating interval timing devices, an arithmetic divider, and...
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3555305 |
PULSE GENERATING CIRCUIT ARRANGMENT FOR PRODUCING PULSES OF DIFFERENT ADJUSTABLE DURATIONS
A pulse generating circuit arrangement comprises a sawtooth generator. The sawtooth generator comprises an adjustable potentiometer connected in series with a capacitor. The input of a...
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3544910 |
ANALOG TO DIGITAL METHOD AND APPARATUS FOR MONITORING THE STATUS OF A PARAMETER
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3518555 |
PULSE TRAIN DETECTORS
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3458660 |
PULSE PARAMETER MEASURING SYSTEM
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