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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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7612587 |
Semiconductor circuits
Semiconductor circuit capable of selecting a corresponding adjusting parameter to adjust the received signal according to different voltages and frequencies. A voltage detector detects a voltage...
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7602195 |
Single pin multi-state identifier using RC timing element
In a circuit identifier, an electrical circuit includes an output node to output an electrical signal. A resistor device and a capacitor device, electrically in series with the resistor device,...
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7579818 |
Current regulator and method therefor
In one embodiment, a current regulator is configured to form a first signal representative of a current flow through a power switch and to use the first signal to determine an off-time of the power...
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7489575 |
Noise resistant small signal sensing circuit for a memory device
Apparatus and method for data sensing circuitry that uses averaging to sense small differences in signal levels representing data states. The apparatus periodically switches the coupling of input...
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7453298 |
PWM controller and method therefor
In one embodiment, a PWM controller is configured to form a control signal that has reduced noise. The control signal is used to adjust a frequency of a clock signal of the PWM controller.
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7436233 |
Normal mode and green mode pulse width modulation controller
A PWM controller that effectively transitions between normal mode and green power mode is disclosed. A driver provides a normal drive signal during normal operation. A pulse width detector detects...
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7406135 |
Reducing power consumption in signal detection
Methods, systems, and media to time-share the signal detection between reference voltages for a data transmission are contemplated. Embodiments include a time-sharing detector that is designed to...
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7376201 |
System and method for reducing crest factor of signal
A new system and method is developed for reducing the crest factor of a signal. The system includes a large signal extraction module for receiving the input signal and the magnitude of the input...
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7263151 |
High frequency loss of signal detector
Methods and circuitry for implementing high speed loss-of-signal detectors for use in Gb/s telecommunication applications. The invention measures bit error rate (BER) of the incoming data by...
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7259607 |
Integrated semiconductor memory with clock generation
An integrated semiconductor memory includes a clock generator circuit driven by an external clock signal and a control circuit driven by the external clock signal. The clock generator circuit...
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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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7245167 |
Clock regulation apparatus and circuit arrangement
Clock regulation apparatus for preventing a logic switching mechanism from operating incorrectly. The apparatus has a supply voltage input that receives a supply voltage, which is also applied to...
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7224751 |
Device and method for checking whether a signal with a predetermined frequency is being received
A device and method are disclosed, whereby the normally complicated and difficult frequency determination is achieved by simply arranged and executed measures, namely by means of larger, smaller...
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7133751 |
Method and apparatus for detecting on-die voltage variations
On-die voltage and/or frequency detectors. For one aspect, an adaptive frequency clock generation circuit includes a droop detector to detect a supply voltage level and to cause the frequency of an...
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7061277 |
Low power differential-to-single-ended converter with good duty cycle performance
A differential-to-single-ended (DSE) converter receives a positive differential input and a negative differential input and generates a single-ended output. The DSE converter comprises: 1) a first...
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7053685 |
Frequency signal enabling apparatus and method thereof
The present invention discloses a frequency signal enabling apparatus and the method thereof for filtering noises and glitch when entering an operating mode from a power-saving mode. When the pulse...
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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,...
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7034515 |
Instantaneous voltage lowering detection device
An instantaneous voltage dip detection device is provided with: all-pass filter ( 2 ) for phase shifting a supply voltage waveform ( 11 ) by 90°; a comparator 7 that outputs a signal when 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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6859423 |
Motor drive circuit for a disk drive apparatus
When a circuit that is likely to cause noise is enabled, a control circuit turns on a switch so that an inverter will be formed by one P-channel MOSFET and two parallel-connected N-channel MOSFETs....
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6788111 |
One cell programmable switch using non-volatile cell
A one transistor, non-volatile programmable switch comprises a first node and a second node coupled with corresponding circuit elements in an integrated circuit. A single, non-volatile programmable...
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6775809 |
Technique for determining performance characteristics of electronic systems
A technique for determining performance characteristics of electronic systems is disclosed. In one exemplary embodiment, the technique may be realized as a method for determining performance...
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6762636 |
Circuit and method for adjusting duty cycle of a high speed, low swing output signal
A circuit, system, and method is provided for regulating the pulse width and/or duty cycle of a signal indirectly or directly used to drive, e.g., a transmitter. The load of the transmitter can be,...
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6545509 |
Voltage measurement circuit using an improved comparator
A comparator circuit with comparing means for comparing first and second voltages, has current source circuitry for providing current to said comparing means, said current source circuitry having...
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6535024 |
Clock signal filtering circuit
A clock signal filtering circuit includes a bistable flip-flop and a controller for controlling state changes of the flip-flop. A first activation circuit activates the controller by edges of...
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6456134 |
Duty cycle discriminating circuit having variable threshold point
A duty cycle discriminating circuit used, for example, in a VTR includes an up/down counter with sign bit for counting up or counting down a count clock signal depending on a potential level of a...
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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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6337649 |
Comparator digital noise filter
Spurious pulses are eliminated in the output of a comparator performing analog to digital conversion by addition of logic which eliminates pulses having a width less than a selected width from the...
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6320438 |
Duty-cycle correction driver with dual-filter feedback loop
A clock generator has a duty cycle correction circuit that adjusts the duty cycle to 50%. A modulator is an inverter with extra source-limiting transistors in series to the power and ground...
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6292524 |
Counting apparatus and rotation stopped detection apparatus which uses a counting apparatus
A counting apparatus having excellent fail-safe characteristics can be used in a rotation-stopped detection apparatus. As a first feature, timing of a high-frequency signal P 2 is carried out by a...
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6255860 |
Pulse detection circuit, method of operation thereof and fan assembly test circuit employing the same
A pulse detection circuit, a method of operation and a fan assembly test circuit employing the same. In one embodiment, the pulse detection circuit includes a charge pump that receives an input...
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6198310 |
Circuit arrangement for monitoring a clock-timed load
A circuit arrangement for monitoring a load operated with a clock signal is provided. The circuit arrangement may be applied to the field of automotive engineering. The circuit arrangement includes...
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6184720 |
Internal voltage generating circuit of a semiconductor device using test pad and a method thereof
An internal voltage generating circuit and method for generating thereof in semiconductor device capable of performing test without any needless transfer between a test equipment and a repair...
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6169765 |
Apparatus and method for output signal pulse width error correction in a communications receiver
An output signal pulse width error correction circuit and method wherein errors in a data signal conforming to a communications protocol having a prescribed duty cycle are corrected by monitoring 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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6047032 |
Signal equalization and data recovery with non-linear digital threshold feedback
In a digital communication system, analog equalization and data recovery are provided with non-linear digital feedback at the receiver, to overcome frequency domain distortion imposed by the...
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5880615 |
Method and apparatus for detecting differential threshold levels while compensating for baseline wander
A method and an apparatus for detecting differential threshold levels of a differential signal being carried in first and second lines while compensating for baseline wander. In one embodiment,...
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5841301 |
Valuable threshold waveform shaping apparatus
A waveform shaping apparatus includes a comparing device for comparing a sensor output signal with a threshold voltage to convert the sensor output signal into a waveform shaped signal. The...
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5834968 |
Low pass filter
A low pass filter comprises a complementary signal generator circuit for receiving an input pulse signal to output a first and a second signals having phases inverse to each other, a first CR...
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5737140 |
Simple pulse position modulation channel/decoder
In a magnetic recording reproducing apparatus, a detecting and decoding circuit comprising: a first integrator having an input for receiving a pulse position modulated (PPM) encoded signal...
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5703504 |
Feedforward adaptive threshold processing method
A signal processing circuit (10) generates a bias signal (27) that is used for biasing a comparator (26). An input signal (14) is compared to the bias signal (27) in order to reconstruct the input...
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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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5686846 |
Time duration trigger
An oscilloscope has a trigger circuit which is operable in any one of three different modes. The trigger circuit has a number of edge detect circuits which generate pulses in response to a rising...
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5680265 |
Circuit for detecting contact of MR head with disk surface
A circuit for detecting contact of a magneto-resistive (MR) head with a disk surface by properly sensing disturbance signals without being effected by noises using a simple configuration. The...
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5646565 |
Pulse-width-extension circuit and electronic device including the circuit
A pulse-width-extension circuit for producing an output pulse signal whose pulse width is extended as compared with a pulse width of an input pulse signal when the pulse width of the input pulse...
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5631567 |
Process for predicting propagation delay using linear interpolation
According to the present invention, a process for use with automatic test equipment ("ATE") for determining a propagation delay in a semiconductor circuit is provided. In one embodiment of the...
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5631585 |
Wave-shaping circuit
A wave-shaping circuit comprises a dynamic hysteresis generating circuit for generating a dynamic hysteresis voltage having a certain crest value and whose signal level attenuates at a speed...
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5483154 |
Apparatus for detecting signal frequency and controlling indicating device
An apparatus and a method for discriminating the frequency of an input signal and for providing a binary output signal. The binary output signal can be used to control an indicating device and/or...
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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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