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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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
3544910 ANALOG TO DIGITAL METHOD AND APPARATUS FOR MONITORING THE STATUS OF A PARAMETER  
3518555 PULSE TRAIN DETECTORS  
3458660 PULSE PARAMETER MEASURING SYSTEM  
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