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Matches 151 - 200 out of 4,502

Document Document Title
WO/2010/145836A1
An integrator (100) comprises an amplification and phase shifting element (170) with a feedback path (130) forming a loop and comprising a capacitive element (140). An input signal is summed into the loop, and the loop is arranged to osc...  
WO/2010/147292A1
An audio amp with a spurious wave noise reduction circuit according to the present invention comprises: an input unit receiving an audio signal for each channel; a modulation unit converting the audio signal into a pulse width modulation...  
WO/2010/136225A1
The present application is directed generally to switch mode power supplies operating in a master-slave configuration and provides a method of synchronizing the PWM outputs from the master and slave devices to avoid problems such, for ex...  
WO/2010/132460A2
A DC-coupled two-stage gate driver circuit for driving a junction field effect transistor (JFET) is provided. The JFET can be a wide bandgap junction field effect transistor (JFET) such as a SiC JFET. The driver includes a first turn-on ...  
WO/2010/132460A3
A DC-coupled two-stage gate driver circuit for driving a junction field effect transistor (JFET) is provided. The JFET can be a wide bandgap junction field effect transistor (JFET) such as a SiC JFET. The driver includes a first turn-on ...  
WO/2010/129824A1
All-digital techniques for generating periodic digital signals having selectable duty cycles. In one aspect, a computation block (210) is provided for computing the product of a selected duty cycle (C) and a discrete ratio (L) between a ...  
WO/2010/120252A1
An amplitude of a carrier signal at an output of an impedance matching block is measured as a first amplitude value. A value of the signal amplitude at the output of the impedance matching block is calculated as a second amplitude value ...  
WO/2010/109453A1
A method for reducing the transition rate of a PWM signal representing an original signal, thus reducing energy losses of devices stimulated by the signal, while decreasing jitter and SNR of the output low passed signal. Every R pulses o...  
WO/2010/098202A1
A resistor (16) is provided between an input terminal and a node (N0). A switch (15) is provided between the node (N0) and a ground voltage (GND) and closes according to the voltage level of the node (NC). A resistor (13) is provided bet...  
WO/2010/088661A1
In a particular embodiment, a device (102) includes a reference voltage circuit (110) to generate a controlled voltage. The device includes a frequency circuit (106) configured to generate a frequency output signal (328) having a pre-set...  
WO/2010/083628A1
A method for generating an actuation signal for a light source is provided. A random phase delay for each period of an input signal is generated, where each period is a predetermined length. Each phase delay is added to a predetermined a...  
WO/2010/082954A1
A pulse width modulation circuit may generate an adjustable output signal that periodically transitions between a first and a second state with an adjustable duty cycle. A first pulse generator circuit may be configured to generate a fir...  
WO/2010/082245A1
A load driving device able to reduce offset voltage without requiring a configuration for resetting the charge of the integrating capacitance and terminals for correcting offset. In the load driving device, an input selector selects an ...  
WO/2010/078501A1
Input data is encoded using a look-up table and then transmitted over a conductive transmission medium as a series of electrical pulses. The look-up table includes data elements. The length of each pulse is calibrated to correspond to on...  
WO/2010/072550A1
The invention relates to a series unit (1) for a switching power amplifier (2) for a high-frequency transmission circuit (16). The series unit (1) feeds a pulse-duration modulated HF pulse signal (22) to the switching power amplifier (2)...  
WO/2010/058310A2
A quadrature out-phasing system comprising: a first baseband signal modifier (6) arranged to receive a first baseband signal component (2) and output a first constant envelope RF carrier (12) and a second constant envelope RF carrier (14...  
WO/2010/059938A1
In one embodiment, the digital pulse width modulator of these teachings includes comparators and a number of phases and capable of increasing resolution without increasing clock frequency. In another embodiment, the digital pulse width m...  
WO/2010/040692A1
Instead of reducing the pulse widths of all pulses simultaneously in order to reduce the output power of a switched-mode amplifier linearized by a pulse-width modulator, the width of every other (or every n-th) pulse is reduced. When the...  
WO/2010/038166A2
Transceivers for wireless nodes often contain both a crystal and an acoustic wave device. The present invention directly uses an acoustic wave device for modulation and demodulation. As a result the crystal, which is both bulky and expen...  
WO/2010/025626A1
A device for controlling a pulse width is disclosed. The device comprises: a first univibrator (U1A) for receiving a syncpulse and generating and outputting a negative pulse whose width is a first presetted threshold, a second univibrato...  
WO/2010/014085A1
A signal processor (30) is provided. The signal processor (30) is configured to receive a first analog signal and convert the first analog signal into a digital signal. The digital signal is transmitted across an electrical barrier and c...  
WO/2010/010278A1
The invention relates to a method for transmitting an at least synchronization and data signal (S) on a unifilar bus between a master device and at least one slave device, wherein a first transmission channel (C1) from the master device ...  
WO/2010/006836A1
In order to actuate a controllable electronic switch (S) at precisely defined switching levels, a micro-controller (MC) controls a comparator (K) via a resistance network comprising a first voltage divider having two resistors (R1, R2) a...  
WO/2009/156795A1
A semiconductor device (200) comprising timer logic (210) for generating a first modulated waveform signal, and delay logic (220), operably coupled to the timer logic (210) and arranged to provide a first delay in a rising edge of the fi...  
WO/2009/146083A3
Methods, systems, and devices are described for providing a communication system for handling pulse information. Embodiments of the invention provide a pulse shaping unit operable to avoid saturation of the pulse transformer, while being...  
WO/2009/146083A2
Methods, systems, and devices are described for providing a communication system for handling pulse information. Embodiments of the invention provide a pulse shaping unit operable to avoid saturation of the pulse transformer, while being...  
WO/2009/137573A1
Dead time compensated complementary pulse width modulation (PWM) signals (PWMH, PWML) are derived from a PWM generator by first applying time period compensation to the PWM generator signal (450) based upon the direction of current flow ...  
WO/2009/137702A1
Embodiments of the present invention provide for improved estimation of environmental parameters in a dual-polarization radar system. In some embodiments, environmental parameters can be estimated using a linear combination of data recei...  
WO/2009/131440A1
The invention provides a method and a modulation circuit for pulse width modulation with feedback, wherein a pulse width modulated signal is provided on the basis of an input signal and a reference signal that is periodic and has a refer...  
WO/2009/131440A8
The invention provides a method and a modulation circuit for pulse width modulation with feedback, wherein a pulse width modulated signal is provided on the basis of an input signal and a reference signal that is periodic and has a refer...  
WO/2009/127036A1
A method and apparatus are provided for implementing an impulse ultra-wideband communications system which combines the technique of transmitted reference (TR) with a code-sifted reference scheme that separates the reference and the data...  
WO/2009/127739A1
There is disclosed a method and apparatus for generating, in an envelope tracking modulator of a mobile radio transmission apparatus, a pulse width modulated, PWM, signal representing a time-varying signal, the method comprising, for eac...  
WO/2009/127361A1
The present invention relates to a method for generating an analog signal generated by a PWM signal, the cyclic relationship and period of which are parameterizable. It is thus possible to select the pair formed from the cyclic relations...  
WO/2009/125377A1
A driver for driving an LED uses PWM in a sequence of the periods. The driver has a modulo counter, that is reset after each period. The driver has a first adder for combining the count value with a quantity indicative of a shift of the ...  
WO/2009/124221A3
A direct current to pulse amplitude modulated ("PAM") current converter, denominated a "PAMCC", is connected to an individual source of direct current. Some embodiments provide a PAMCC for each direct current source in an array, for exam...  
WO/2009/124224A3
A direct current to pulse amplitude modulated ("PAM") current converter, denominated a "PAMCC", is connected to an individual source of direct current. The PAMCC receives direct current and provides pulse amplitude modulated current at i...  
WO/2009/102128A3
The invention relates to a pulse width modulator, more particularly to a cross-coupled pulse width modulator. A crossing input signal modulator according to the invention comprises: a positive path block which includes a first integrato...  
WO/2009/102128A2
The invention relates to a pulse width modulator, more particularly to a cross-coupled pulse width modulator. A crossing input signal modulator according to the invention comprises: a positive path block which includes a first integrato...  
WO/2009/098603A1
The present invention relates to an electronic device (1) comprising a controller (4) which produces different control signals (S1, S2) by making changes in a master signal and controls the circuits (2) to which spread spectrum is applie...  
WO/2009/092722A1
Sigma delta pulse length modulator, comprising a signal input with a difference stage, the first input of which receives an analog input signal, said stage being configured to produce and output a difference signal corresponding to the d...  
WO/2009/094352A3
Waveform errors between multiphase PWM signals caused by external synchronization signals is solved by providing a capture register in a master time base circuit. The capture register is triggered by the external sync signal so as to 'ca...  
WO/2009/088886A3
Systems and methods for implementing over-current protection in amplifiers are provided, including systems, methods and devices for specifying a clip level at which to clip an audio signal in response to an over-current condition being d...  
WO/2009/088886A2
Systems and methods for implementing over-current protection in amplifiers are provided, including systems, methods and devices for specifying a clip level at which to clip an audio signal in response to an over-current condition being d...  
WO/2009/084201A1
Provided is a signal modulation circuit which can control a transmission power even when performing a level adjustment of continuous signals from an oscillation circuit. A pulse generation circuit as an example of the signal modulation c...  
WO/2009/078811A1
A method for transmitting data between first and second nodes in a network comprises (a) the first node sending a start packet to the second node, (b) the first node starting a first counter concurrently with sending the start packet, wh...  
WO/2009/068370A1
The invention relates to a regulating device for regulating an average current through an inductive load (L, Rl), wherein the load can be connected by a switch (T1) to a voltage source (U) and the average current can be set by the duty c...  
WO/2009/054503A1
A PWM control method increases/decreases a PWM signal duty ratio with a predetermined resolution so as to control the PWM signal duty ratio in case of PWM control. When the High period in the PWM signal duty ratio is shorter than the ris...  
WO/2009/051499A1
The present invention relates to a method of simulating an initial component of a signal to approximate a component of a reference signal, the method characterised by the steps of; i) generating a source signal which includes at least on...  
WO/2009/034146A1
The present invention relates to a method for generating a pulse width modulated (PWM) signal, which includes determining a PWM period and/or a pulse width of the pulse width modulated signal (fpwwi) by counting the number of clock cycle...  
WO/2009/018222A2
Briefly, in accordance with one or more embodiments, in a pulse position and pulse position modulation out-phasing transmitter, the range of the phase angle, theta, may be divided into more than one range to drive a first power amplifier...  

Matches 151 - 200 out of 4,502