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8159272 |
System and method for on-chip jitter and duty cycle measurement
An apparatus for measuring time interval between two selected edges of a clock signal. includes an edge generator, a first multi-tap delay module, a second multi-tap delay module, and a...
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8125354 |
Complex switch control system
A complex switch control system including many switches, a switching voltage control circuit and a comparator is provided. The switching voltage control circuit converts an operating voltage into a...
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8120403 |
Duty detection circuit
A semiconductor device includes a first duty determining circuit (20) and a second duty determining circuit (30). The first duty determining circuit (20) determines a duty correction condition for...
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8058932 |
Digital pulse width modulation device
A digital pulse width modulation device includes a counter, a first comparator and a second comparator, wherein the first and second comparators are connected in parallel with each other and in...
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7961023 |
Pulse width modulation sequence maintaining maximally flat voltage during current transients
A digital circuit implementing pulse width modulation controls power delivered in what one can model as a second order or higher order system. An exemplary control plant could embody a step-down...
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7933325 |
Antenna driving apparatus
A transmitter portion 14 includes a control circuit 32, a driver circuit 33, and a wave detector circuit 35. The control circuit 32 generates control signals Vp, Vn based on a pulsed transmission...
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7881397 |
Wireless communication system
Methods and systems for modulating a signal are described. A phase-modulated signal that includes a sequence of contiguous one-cycle sinusoidal waveforms having a frequency above 50 MHz is...
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7830180 |
Noise protector
A noise protector includes a first noise control block for NORing an input signal and a first trimmed input signal and providing an output; a second noise control block for NANDing the input signal...
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7778324 |
System for dynamic time offsetting in interleaved power amplifiers
A system for controlling the delay applied to one branch of a pulse width modulation amplifier. The delay typically incorporated whether input signal level is low and diminished when the input...
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7733248 |
Measuring and regenerating a variable pulse width
A system and process for receiving a variable pulse width signal and measuring and serially sending the measurements to a receiver that deserializes and regenerates the variable pulse width signal....
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7719336 |
Pulse width modulation sequence maintaining maximally flat voltage during current transients
A digital circuit implementing pulse width modulation controls power delivered in what one can model as a second order or higher order system. An exemplary control plant could embody a step-down...
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7705651 |
Delay circuit of semiconductor memory apparatus
A delay circuit of a semiconductor memory apparatus can include a clock period sensing unit for generating a sensing signal in response to a clock frequency, and a selective delay unit for delaying...
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7643981 |
Pulse waveform timing in EinsTLT templates
The present invention provides for simulating signal transitions. Circuit characteristics are generated. Circuit characteristics are loaded into memory. Circuit behaviour is simulated. A...
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7627053 |
Apparatus and method for driving a pulse width modulation reference signal
An apparatus for driving a pulse width modulation reference signal includes: (a) A converting unit receiving an input signal at an input locus and presenting an output current at an output locus....
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7612593 |
Duty detection circuit
Semiconductor memory device with duty correction circuit includes a clock edge detector configured to generate first and second detection pulses in response to a transition timing of a common clock...
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7508873 |
Digital amplifier, pulse width modulator thereof and method for reducing pop noise for the same
A pulse width modulator for use in a digital amplifier, includes a pop noise reducer for reducing pop noise by controlling a width and a phase of a pulse of a PWM signal output from the pulse width...
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7504865 |
Frequency sensor and semiconductor device
A frequency sensor includes at least one a resistor element and a capacitor. A frequency is detected according to a charging/discharging time to/from the capacitor, thereby realizing a frequency...
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7495428 |
Pulse generator, timing generator, and pulse width adjusting method
The present invention provides, a pulse generator, which is configured so as to generate pulses with a predetermined pulse width, comprises: multiple pulsers each of which is configured so as to...
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7426239 |
Method and transmission apparatus for transmitting a bivalent signal
A method and an apparatus for transmitting information contained in a transmission signal via at least one channel includes a number of processing steps at the transmitter end. At least one pulse...
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7400282 |
Quantum turing machine
A quantum Turing machine constituted using a quantum bit created by localizing a phase difference soliton S between superconducting electrons existing in each of multiple of bands in a ring R0 that...
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7266039 |
Circuitry and method for adjusting signal length
A circuit for adjusting a signal length is adapted for a memory device. The circuit adjusts a signal length of an ATD signal. The circuit includes a timing module, an encoding module and a logical...
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7256632 |
Pulse width modulation (PWM) controlling module and method for adjusting a PWM signal thereof
A pulse width modulation (PWM) controlling module, includes: a PWM controller, a load detector, and an adjusting module. The PWM controller generates a PWM signal that is utilized for controlling a...
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7233618 |
Circuit configuration and method for transmitting digital signals
To transmit digital signals, binary signals are transformed into a series of pulses, the pulses being modulated in their pulse length as a function of an information content of the binary signals....
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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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7200187 |
Modulator for digital amplifier
A digital modulator for driving a digital amplifier. The digital modulator has a subtractor which receives a digital input signal. A filter amplifier receives the output of the filter amplifier and...
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7053667 |
Single wire digital interface
A single-wire digital interface for receiving digital data as a stream of pulses, with ‘1’ and ‘0’ logic levels represented with pulses having “first” and “second” pulse widths, respectively. A...
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6940325 |
DLL circuit
A DLL circuit synchronizes an external input clock applied from an outside of a system with an internal input clock used inside the system using a divider unit. The DLL circuit includes a detection...
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6930526 |
Quasi-feedforward PWM modulator
Devices, circuits, and methods generate a substantially constant output voltage. A power storage element generates a DC output voltage from an input voltage. The output is sampled to generate a...
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6925170 |
Wire-bound telecommunication device and a circuit for use in such a device
In known telephone subscriber end stations a caller_ID IC detects a tone alerting signal TAS alerting that successive caller_ID information can be received for displaying on a display of the phone....
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6859912 |
Method and circuit arrangement for clock recovery
Clock recovery from transmitted data signals is carried out entirely digitally, and in a manner that is essentially insensitive to dynamic changes in the phase of the data signal. To this end, at...
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6650403 |
Distance measuring device for a vehicle
In a distance measuring device, reflected pulsed light beams with respect to one transmitted light beam are amplified by plural amplifiers (22a, 22b) of different gains. The retroreflection times...
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6573759 |
Apparatus and method for extracting data values from a signal encoded with AES3 data
Apparatus for determining nominal pulse duration values in a signal encoded with an AES3 data stream includes a first circuit for measuring duration of each pulse of the signal and providing a...
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6532260 |
Pulse transmission device for use in long-distance communication
A device for transmitting a pulse signal via a metallic line to a receiver end at which equalization is applied to the received pulse signal. The device includes a waveform adjustment unit which...
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6469544 |
Device for detecting abnormality of clock signal
A circuit for detecting abnormality of a subject clock signal, includes a frequency dividing circuit for frequency-dividing a monitoring clock signal to provide a frequency-divided monitoring clock...
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6393069 |
Circuit and method for compensating for degradation in pulse width of burst data
The output from a digital signal amplitude regenerator circuit in which the amplitude of a transmitted burst data signal is amplified, and an initial potential generator circuit, are connected to a...
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6392459 |
Gate signal generating circuit, semiconductor evaluation apparatus, and semiconductor evaluating method
When continuously outputted pulses from a first pulse to an (N+1)th (where N is an integer) are received, a pulse specifying circuit specifies a number N of a pulse whose properties are to be...
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6389548 |
Pulse run-length measurement for HF data signal by dividing accumulated phase difference between first and second zero-crossings by single-cycle range using multiple cycle range sawtooth waveform
A system and method for accurately measuring a pulse run length in a high frequency (HF) data signal while utilizing a low analog-to-digital conversion (ADC) sampling rate. Four bits are added to...
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6108528 |
Receive squelch circuit having function of detecting pulse width
A receive squelch circuit detects a pulse width of an input data signal to prevent errors from occurring during detection of received data. The squelch circuit adds a function of detecting a pulse...
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6075751 |
Signal transition detector for asynchronous circuits
An apparatus for synchronizing a plurality of signals entering an electronic device. In one embodiment, the apparatus comprises a filter to receive a signal of the plurality of signals entering the...
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6075750 |
Method and circuit for generating an ATD signal to regulate the access to a non-volatile memory
A method and a circuit generate a pulse synchronization signal (ATD) for timing the memory cell read phase in semiconductor integrated electronic memory devices. The pulse signal (ATD) is generated...
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6072338 |
Method of and device for determining pulse width
A pulse width determining device includes a down counter for counting down from a first initial count value reloaded thereinto. If the down counter underflows, it can start counting down from a...
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6064237 |
Device for removing noise
A device for removing a noise, in which a delay circuit is used for positively removing a noise contained in a signal regardless of the signal transitioning either from high to low or vice versa....
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6049358 |
Counter control circuit for controlling counter having a pulse period measuring function
A counter control circuit of a counter for measuring a pulse period of a video synchronization signal includes a main control unit having a synchronization signal input Sync, and a control signal...
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5966034 |
Method and device for the filtering of a pulse signal
In a pulse filtering device, the pulse signal is sampled to enable the counting of this signal by an asynchronous counter. A pulse of calibrated duration is generated when the counting reaches a...
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5949255 |
Method and apparatus for generating active pulse of desired polarity
A method for generating an output signal of desired polarity from an input periodical signal of frequency f1 via a clock signal of frequency f2, wherein f2 is substantially greater than f1, is...
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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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5874839 |
Timer apparatus
In a timer apparatus, the clock controlling circuit thereof outputs a clock signal during a period in which an input signal is significant. The counter thereof counts the number of pulses of the...
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5808484 |
Method and apparatus for detecting changes in a clock signal to static states
An integrated detection circuit (10) linearly charges capacitors (14) and (16) over time in response to particular states of an input signal (12). Outputs from the integrated detection circuit (10)...
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5805460 |
Method for measuring RF pulse rise time, fall time and pulse width
A method for measuring the rise/fall time and pulse width of RF pulses using multi-purpose, commercial-off-the-shelf test devices, such as an RF signal down converter, a digitizer and a signal...
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5781037 |
Method and apparatus for an address transition detection circuit
The present invention relates to an improvement to an address transition detection (ATD) circuit in an IC chip, a method related to the improved ATD circuit is also disclosed. The improved ATD...
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