Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 201 - 250 out of 4,539

Document Document Title
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/2009/102128A3
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/2009/137573A1
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/2009/127036A1
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/2009/094352A3
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/2009/102128A2
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/2009/088886A2
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/2006/020503A3
A digital timing read back and an adaptive feedforward compensation algorithm to reduce harmonic distortion is disclosed. More specifically, the approach generates harmonic components digitally with the same magnitude but at an opposite ...  
WO/2007/101014A3
A hybrid digital pulse width modulator can have a delay line with digitally programmable delay cells. The digitally programmable delay cells can be adjusted by a digital correction signal from a delay matching circuit.  
WO/2005/099131A3
A method of communicating over a wideband communication channel (1502) divided into a plurality of sub-channels (1520) comprises dividing a single serial message intended for one of the plurality of communication devices into a pluralit ...  
WO/2008/134094A3
An apparatus for generating a pulse at a particular time dictated by an input. The apparatus may comprise an offset voltage generator for generating an offset voltage that is a function of the input, a current generator for generating a ...  
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/2009/018222A3
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...  
WO/2009/001254A3
Apulse width modulation (PWM) circuit comprises a first integrator (g m1) witha first feedback capacitor (C1), a second integrator (gm1) with a second feedback capacitor (C2) and a comparator (A0) having a first input (V1) connected to t...  
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...  
WO/2009/008862A1
Disclosed herein are mud pulse telemetry systems and methods that employ some combination of modulated pulse positions, modulated pulse widths, and modulated pulse amplitudes to increase telemetry data rates. In at least some of the empl...  
WO/2009/006238A1
Using a combination of frequency dithering of a PWM counter and a variable time delay circuit yields improved PWM frequency resolution with realizable circuit components and clock operating frequencies. A controllable time delay circuit ...  
WO/2009/001254A2
Apulse width modulation (PWM) circuit comprises a first integrator (g m1) witha first feedback capacitor (C1), a second integrator (gm1) with a second feedback capacitor (C2) and a comparator (A0) having a first input (V1) connected to t...  
WO/2008/151251A1
Techniques for multi-wire encoding with an embedded clock are disclosed. In one particular exemplary embodiment, the techniques may be realized as a transmitter component. The transmitter component may comprise at least one encoder modul...  
WO/2008/109061A3
Methods and apparatus are described for time domain signals. A method includes creating a bipolar pulse whose high (up) and low (down) periods are separately and precisely controllable.  
WO/2008/072182A3
The present invention relates to the application of a free-tunning clock signal in a pulse- width modulator (PWM) Specifically there is disclosed an integrated circuit comprising a pulse-width modulator (2) for converting an input signal...  
WO/2007/149630A3
A receiver and method of enhancing transmitted data signals in a wireless communications system includes wirelessly transmitting and receiving a data signal over a wireless channel in the communications system; providing known channel pa...  
WO/2008/110987A3
A device (100) for processing data, the device (100) comprising an integrator unit(103, 104) adapted for integrating an input signal (V I) and a correction unit (101, 102) adapted for correcting a clipping integrator unit (103, 104) by f...  
WO/2008/005853A3
A digital audio system including a digital phase-locked-loop (26) circuit for generating a pulse- width-modulation (PWM) clock signal, applied to a pulse-code- modulation to pulse-width-modulation converter, is disclosed. The digital pha...  
WO/2008/019287A3
A power amplifier includes a power amplifier core in which a transmit signal having an amplitude-modulated (AM) component and a phase-modulated (PM) component is passed and amplified, the power amplifier comprising a forward path, and an...  
WO/2008/137652A1
A power control system (300) includes a switching power converter (306) and a power factor correction (PFC) and output voltage controller (302). The switching power converter (306) utilizes a nonlinear energy transfer process to provide ...  
WO/2008/110987A2
A device (100) for processing data, the device (100) comprising an integrator unit(103, 104) adapted for integrating an input signal (V I) and a correction unit (101, 102) adapted for correcting a clipping integrator unit (103, 104) by f...  
WO/2008/109061A2
Methods and apparatus are described for time domain signals. A method includes creating a bipolar pulse whose high (up) and low (down) periods are separately and precisely controllable.  
WO/2008/106456A2
A multiphase hybrid digital pulse width modulator can comprise a counter that is selectable between at least two different numbers of states to indicate a first portion of a switching period. Unclocked logic can indicate a second portion...  
WO/2008/084419A3
The present invention relates to a circuit arrangement and method of applying predistortion to a baseband signal used for modulating a pulse-shaped signal, wherein an envelope information of the baseband signal is detected and slewing di...  
WO/2008/042221A3
A method of signal processing comprises receiving an unknown input signal that includes a distorted component and an undistorted component, the unknown input signal having a sampling rate of R; and performing self-linearization based at ...  
WO2007081327A8
A method and apparatus modulate a polarity of a burst of pulses of the impulse radio signal using a first pseudo noise sequence generated by a shift register and a position of the burst of pulses using a second pseudo noise sequence gene...  
WO/2008/095145A1
Switching amplifier includes first and second output terminals that may be connected to a load. A pulse-width modulator receiving an input signal to obtain respective positive and negative values of the input signal. The modulator is con...  
WO2007124235B1
A packet communications system includes a method for maintaining quality of service by dynamically determining a m aximum packet size for a communications system that transports at least one of real-time and time-sensitive data and other...  
WO/2007/090164A3
Systems and methods for pulse width modulating waveforms to represent asymmetric signal levels using pulses that are symmetric within their respective switching periods. One embodiment comprises a pulse width modulation system including ...  
WO/2008/084419A2
The present invention relates to a circuit arrangement and method of applying predistortion to a baseband signal used for modulating a pulse-shaped signal, wherein an envelope information of the baseband signal is detected and slewing di...  
WO/2008/077381A2
The invention relates to a control unit for controlling a number of electrical loads with a number of input signals, wherein the electrical loads are controlled by means of pulse width modulated signals and the input signals are PWM-sign...  

Matches 201 - 250 out of 4,539