Matches 251 - 300 out of 1023 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >
Match Document Document Title
6965273 Oscillator with improved parameters variation tolerance  
A design for an inverting delay component of an oscillator is disclosed, which enables the oscillator to be more tolerant of parameter variations. This increased parameter variation tolerance...
6963251 High noise rejection voltage-controlled ring oscillator architecture  
A ring oscillator circuit, such as a VCO, with a relatively high level of noise rejection for noise originating from both the voltage supply and ground. The ring oscillator circuit is composed of a...
6963250 Voltage controlled oscillator with selectable frequency ranges  
A VCO is configured using a ring oscillator with voltage controlled feedforward inverting stages coupled around the inverting stages making up the basic ring oscillator to enable the frequency of...
RE38862 Oscillator with two outputs in quadrature  
An oscillator includes four identical cells each producing a phase shift of 90 degrees. The output signal from one cell is applied to the input of the next cell, and with the cells looping back to...
6958659 Test method and apparatus for verifying fabrication of transistors in an integrated circuit  
A ring oscillator for a test apparatus and method for verifying fabrication of transistors in an integrated circuit on a die under test is implemented. The ring oscillator is fabricated on the die...
6956442 Ring oscillator with peaking stages  
A ring oscillator with a plurality of delay stages having selectable active loads for selecting an R-C time constant that defines a delay through the delay stage. The ring oscillator oscillation...
6954110 Replica cell for ring oscillator  
In some embodiments, a ring oscillator includes a plurality of delay cells coupled in series as a ring, and a replica cell coupled to the delay cells to provide at least one bias signal to the...
6952117 Distributed clock generator for semiconductor devices and related method of operating semiconductor devices  
A distributed clock generator for a semiconductor device. In one embodiment, the clock generator is not localized in one particular location on the semiconductor die and then distributed, but...
6948388 Wireless remote sensor  
A sensing system includes a ring oscillator that emits electromagnetic radiation at a characteristic frequency. The ring oscillator comprises an odd number plurality of inverters that are...
6946918 Differential voltage to current converter having transistors of different sizes  
A voltage/current converting circuit has a differential circuit. The differential circuit has a first input terminal coupled to receive an input voltage signal, a second input terminal coupled to...
6943633 Widely tunable ring oscillator utilizing active negative capacitance  
A ring oscillator that uses active negative capacitance at one or more stages of the ring oscillator to adjust the frequency of oscillation. By using a negative capacitance generator, negative...
6933731 Method and system for determining transistor degradation mechanisms  
According to one embodiment, a method for isolating degradation mechanisms in transistors includes providing a ring oscillator having a plurality of delay elements. Each delay element operates as a...
6927639 Method and apparatus for generating high frequency signals by a plurality of low frequency signals with multiple phases  
Method and related apparatus for realizing frequency-multiplication by generating a high frequency signal according to a plurality of low frequency signals. The method includes: according to a...
6922112 Clock signal generation and distribution via ring oscillators  
According to some embodiments, a plurality of ring oscillators are associated with a generation and/or distribution of a clock signal.
6922113 Semiconductor integrated circuit having oscillators or oscillation circuits connected to a wiring line at connection points with intervals in length there between  
The oscillation circuit includes at least two ring oscillation circuits in each of which a plurality of inverters are connected in a ring shape in a multi-stage fashion, and a conductive wiring...
6914492 Digital programmable delay scheme with automatic calibration  
The digital programmable delay scheme with automatic calibration is an alternative to PLLs, DLLs, fixed delay cells and other methods of delay. The method and circuit sets a delay in a programmable...
6911871 Circuit with voltage clamping for bias transistor to allow power supply over-voltage  
A ring oscillator stage includes two differential transistor pairs configured to add an adjustable amount of delay to a differential input signal. Each differential pair is biased with a bias...
6903615 Digitally-controlled oscillator with switched-capacitor frequency selection  
A digitally-controlled oscillator (DCO) ( 60 ), such as may be used in clock generator or clock recovery circuitry in an integrated circuit, is disclosed. The disclosed DCO ( 60 ) is a single-stage...
6903616 Startup circuit and method for starting an oscillator after power-off  
A method and circuit are disclosed for enabling an oscillator circuit to oscillate a predetermined period of time following completion of a power-up operation. The circuit may include a counter...
6900703 Method and system for adjusting a frequency range of a delay cell of a VCO  
The present invention describes aspects of adjusting a frequency range of a delay cell of a VCO. The aspects include providing a CMOS latch of predetermined gain, and altering transconductance in...
6891442 Ring oscillator gates in a matrix for aberrant logic gate timing detection  
An array of circuitry forming row and column ring oscillators is provided to determine aberrant gates in an integrated circuit. Control logic is coupled to the rows and columns to enable a ring...
6888417 Voltage controlled oscillator  
A folded starved inverter differential output apparatus for use in a voltage controlled oscillator includes a first polarity of two transistors that are cross-coupled and a second polarity of four...
6888415 Ring oscillator devices and methods of generating signals  
Techniques to tune a frequency of a sinusoidal signal using devices having controllable signal phase delay times. One implementation may include an input terminal to receive an input signal; a...
6888414 Controllable and testable oscillator apparatus for an integrated circuit  
An integrated circuit (IC) includes an internal clock generator apparatus that provides various modes of operation of the integrated circuit. The internal clock generator apparatus includes a clock...
6882231 Adjustable frequency oscillator with programmable calibrating circuit and related system and method  
An adjustable frequency oscillator circuit includes: an odd number of inverters connected so as to form a loop; a plurality of capacitive elements each connected to an output terminal of a...
6879928 Method and apparatus to dynamically recalibrate VLSI chip thermal sensors through software control  
The present invention provides an integrated circuit VLSI temperature system for the calibration of threshold temperatures. A temperature sensitive ring oscillator (TSRO) generates a TSRO...
6861911 Self-regulating voltage controlled oscillator  
The present invention relates to the improvement of a phase noise characteristics of supply voltage in VCO. The delay in delay cells may be controlled to use the resistor of a transmission gate...
6861918 Compensation circuit for current control oscillator  
A compensation circuit for current control oscillator to correct the frequency curve of an oscillator includes a compensation circuit which has a plurality of P transistors and N transistors to...
6861912 Oscillator method and apparatus for a test chip  
A method and apparatus for modifying a frequency of an oscillating signal comprises generating an oscillating signal of a predetermined frequency on a semiconductor device used as an evaluation...
6859744 Method and device for carrying out frequency synthesis in a distance measuring device  
In a method and a device for carrying frequency synthesis, in particular in a distance measuring device based on the principle of evaluating the change over time in the phase of an electromagnetic...
6859106 PLL circuit and phase difference detecting circuit that can reduce phase pull-in time and adjust a skew at a higher precision  
A PLL circuit for comparing with a phase comparator 1 a phase between an input signal and one of multiphase pulse signals CK 0 DIV to CKNDIV used as a channel clock generated by an output of a...
6856208 Multi-phase oscillator and multi-phase oscillation signal generation method  
The invention provides a multi-phase oscillator includes a delay loop buffer and plurality of oscillators. The delay loop buffer has N delay units. The oscillator can be a single phase oscillator,...
6850124 Circuit, architecture and method for tracking loop bandwidth in a frequency synthesizer having a wide frequency range  
Circuits, architectures, and methods for tracking a phase locked loop (PLL) configuration such that its VCO gain is essentially a linear function of its feedback divider factor over a wide...
6850123 Circuits and methods for characterizing the speed performance of multi-input combinatorial logic  
A test oscillator circuit separately measures the signal propagation delay for both rising and falling edges through one or more multi-input combinatorial logic circuits. A number of components are...
6842082 Programmable voltage-controlled oscillator with self-calibration feature  
A programmable voltage-controlled oscillator includes a ring oscillator having a number of selectable delay stages, and a resistor value detection circuit configurable for coupling to an external...
6842079 High-speed, high PSRR, wide operating range voltage controlled oscillator  
A VCO for a PLL may include a ring oscillator having a power supply controlled in response to the VCO's control voltage input and an inverter having an input coupled to the ring oscillator's output...
6842078 Ring oscillator with variable loading  
A ring oscillator circuit device is achieved. The device comprises an odd number of inverting stages. Each inverting stage has an input terminal and an output terminal. The inverter stages are...
6833745 Signal generator for charge pump in an integrated circuit  
The invention relates to a signal generating device ( 10 ) for a charge pump for an integrated circuit, comprising: N signal outputs D 1 , . . . , D N and a signal setting input ( 12 ) for...
6831524 Feed forward voltage controlled ring oscillator  
According to one embodiment of the invention, a ring oscillator is provided that includes a number of stages, each of the stages being coupled to an output of at least two previous stages. This...
6825731 Voltage controlled oscillator with frequency stabilized and PLL circuit using the same  
A voltage controlled oscillator includes N (N is an integer equal to or more than 2) inversion-type differential amplifiers and a level converter. The N (N is an integer equal to or more than 2)...
6825735 Power supply voltage and temperature-independent RC oscillator using controllable Schmitt trigger  
A power supply voltage-independent and temperature-independent RC oscillator using a controllable Schmitt trigger comprises a transition voltage generator circuit, a Schmitt trigger circuit, an RC...
6825733 Low jitter integrated phase locked loop with broad tuning range  
System and method for providing a low noise signal having a broad tuning range (1 GHz to 10 GHz, or larger), with associated jitter no more than about 10 percent of the selected period of a target...
6825732 Ring oscillator with a digitally programmable frequency  
One embodiment of the present invention provides a ring oscillator with a digitally programmable frequency. This ring oscillator includes an odd number of inverting stages coupled input to output...
6819189 Voltage-controlled oscillator having short synchronous pull-in time  
A voltage-controlled oscillator includes a control terminal having a control voltage applied thereto, first and second output terminals, first and second ring oscillators, first and second output...
6819123 Extraction of interconnect parasitics  
The apparatus for detecting the effects of interconnect resistance and capacitance (RC) in a logic circuit includes a first ring oscillator with the interconnect RC parasitics in a logic circuit...
6819190 Robust fractional clock-based pulse generator for digital pulse width modulator  
A tapped delay line generates a fractional clock pulse signal for controlling a PWM pulse generator, such as used in a DC-DC converter. Operational parameters of the tapped delay are adjusted to...
6809602 Multi-mode VCO  
A voltage controlled oscillator (VCO) is constructed using a series ring connection of an odd number K of logic inverters where K is greater than three. Each sequence of three of the logic...
6809603 Ring oscillator having a stable output signal without influence of MOS devices  
A ring oscillator having a stable output signal without influence of MOS devices is disclosed. The ring-oscillator has a bias circuit to drive a plurality of delay cells. The bias circuit has a...
6803831 Current starved inverter ring oscillator having an in-phase signal transmitter with a sub-threshold current control unit  
A ring oscillator according to the present invention comprises: a ring oscillation unit, including a current starved inverter CSI having a current control P channel transistor P 2 , a signal...
6803826 Delay-locked loop circuit and method using a ring oscillator and counter-based delay  
A delay-locked loop includes a ring oscillator that generates a plurality of tap clock signals, with one tap clock signal being designated an oscillator clock signal. Each tap clock signal has a...
Matches 251 - 300 out of 1023 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >