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Matches 251 - 300 out of 4,538

Document Document Title
WO/2008/076021A1
A switch-modulator (15) for a radio-frequency power amplifier, arranged to modulate the I-signal and the Q-signal of the complex components (I + j.Q) separately in an I-signal part (2a) and a Q-signal part (2b) in order to create a modul...  
WO/2008/072182A2
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/2008/029091A3
A switching amplifier includes a modulator, which includes a pulse generator. The pulse generator generates positive and negative pulses, in response to an input signal, and the frequency of the negative pulses can be controlled independ...  
WO/2008/050267A2
A driver (Highside Driver, Lowside Driver) adapted to drive each of final transistors (MH,Ml,Mpower) included in a power amplifier, the driver includingra first plurality of switches (Mpslow,Mpmoderates, Mpfast) having their respective m...  
WO/2008/008777A3
An amplifier (300) having improved distortion characteristics is set forth. The amplifier (300) includes an interleaved PWM amplifier that generates interleaved PWM pulses in response to a modified input signal (325) and one or more carr...  
WO/2008/029091A2
A switching amplifier includes a modulator, which includes a pulse generator. The pulse generator generates positive and negative pulses, in response to an input signal, and the frequency of the negative pulses can be controlled independ...  
WO/2008/025153A1
The present invention provides a pulse-width modulation (PWM) method and apparatus, and light source driven thereby. In particular, the present invention provides a PWM method and apparatus for generating a PWM signal having a desired re...  
WO/2008/020384A1
The present invention relates to an electronic device that includes an integrated power comparator circuit (1) for a self - oscillating class D system (100). The integrated power comparator circuit (1) has a modulation stage (10), wherei...  
WO/2008/013023A1
Provided is a processing method in an operation system, which performs an operation treatment on the basis of a detected quantity detected by a detecting means and which sends out the operated result of the operation treatment as a pulse...  
WO/2007/125496A3
A transmitter comprises a pulse shaper that replaces a portion of a pulse in a basic signal (RFP) by a neutral value (0). Accordingly, the pulse shaper provides a pulse- shaped signal (RFS) that comprises a thinned version of the pulse a...  
WO/2008/008949A2
Signal-integrity measurement systems and methods utilizing unique time-base generation techniques for controlling the sampling of one or more signals under test. A time-base generator made in accordance with the present disclosure includ...  
WO/2008/008777A2
An amplifier (300) having improved distortion characteristics is set forth. The amplifier (300) includes an interleaved PWM amplifier that generates interleaved PWM pulses in response to a modified input signal (325) and one or more carr...  
WO/2007/148879A1
A headphone driver without use of an inductor or a capacitor and a method of driving the headphone driver are provided. The headphone driver includes three drivers, wherein signals applied to input ports of the drivers have the same duty...  
WO/2007/148691A1
Provided is a pulse modulation circuit capable of generating a pulse modulation signal with a steep rise and a desired pulse width at a desired timing not depending on a transmission signal sequence. In this circuit, a control signal gen...  
WO/2007/036464A3
The invention relates to a frequency modulation switching circuit (1) for controlling a useful circuit (30), said switching circuit comprising an integrated component (10) provided with a saw tooth generator (11) for generating a saw too...  
WO/2007/031940A3
Generating an output pulse signal (Y), which has an output signal period (Ty), which is divided by a magnitude transition into a leading part (LP) and a trailing part (TP). During each output signal period (Ty) altering means (27 to 36) ...  
WO/2007/115250A3
A pulse width modulation (PWM) generator having asynchronous updating of its PWM duty cycle and/or period values allows immediate correction for the new PWM duty cycle and/or period values instead of waiting until the end of a PWM period...  
WO/2007/139131A1
A burst oscillation device (20) includes a data generation unit (21), a calculation unit (11), a signal selection unit (40), and a burst generation unit (50). The data generation unit (21) outputs encoded data obtained by encoding commun...  
WO/2007/125496A2
A transmitter comprises a pulse shaper that replaces a portion of a pulse in a basic signal (RFP) by a neutral value (0). Accordingly, the pulse shaper provides a pulse- shaped signal (RFS) that comprises a thinned version of the pulse a...  
WO/2007/122295A1
A modulator (610), comprising an input unit configured to receive a modulating signal, a control unit configured to provide a control signal on the basis of the modulating signal, an oscillating unit (606) configured to provide a plurali...  
WO/2007/114523A1
In an apparatus for converting an analog signal having a high periodicity to a digital signal by use of an A/D converter for a digital processing, the occurrence of spurious output caused by a malfunction of the A/D converter can be redu...  
WO/2007/115250A2
A pulse width modulation (PWM) generator having asynchronous updating of its PWM duty cycle and/or period values allows immediate correction for the new PWM duty cycle and/or period values instead of waiting until the end of a PWM period...  
WO/2005/048462A3
A signal transmitter for sending a radio signal is made up of an input for receiving input data and a first circuit for generating an inphase signal (I) and a quadrature signal (Q) from the input data. An upconverter having first through...  
WO/2006/000088A3
Disclosed is a method and apparatus for amplitude modulation of an RF transmit signal using pulse width modulation to control an amount of energy within each period. The apparatus includes a signal processing circuit with an input port f...  
WO/2007/101014A2
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/2007/087766A1
The invention relates, inter alia, to an arrangement (10) for converting a first digital signal (Uh) with a first voltage swing into a second digital signal (Un) with a voltage swing which is smaller than the first voltage swing. The inv...  
WO/2007/083281A1
A system and method for Cartesian modulation achieved via generation of a three-level pulse width modulated signal. The system in overview comprises two binary pulse width modulated signal generators receiving signals related to the in-p...  
WO/2007/081327A1
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/2007/077821A1
A stepwise control signal (S1) generated from a control signal generator (1) and a triangular carrier signal (S2) generated from a carrier generator (2) are compared by a digital comparator (3) and its comparison signal (S3) is provided ...  
WO/2006/097718A3
A method and apparatus, for displaying the value of an operating parameter of an electronically controlled power unit such as an internal combustion engine, comprising: deriving a signal from an ECU of the power unit to represent the ope...  
WO/2007/055519A1
Disclosed is a constant current driving circuit for driving a constant current in the form of a Pulse Width Modulation (hereinafter referred to as "PWM") current (hereinafter referred to as "PWM constant current"), and a Light Emitting D...  
WO/2007/046363A1
After a moment in time when the level of an output signal (S4) is inverted by first and second short circuit FETs (55, 56) as a circuit for inhibiting level inversion, the inverted state is sustained and level inversion is inhibited. At ...  
WO/2007/048014A2
A system for and method of reducing power consumed by an electronic system is disclosed. The system includes an energy controller for controlling power to one or more functional modules or regions on the electronic system. Each of the fu...  
WO/2007/028236A3
The present application describes a method and filter for shaping a series of pulses spaced in time for subsequent transmission in a communications system, each of the pulses having a magnitude comprising the steps of providing a generic...  
WO/2005/034366A3
An ultra-wideband receiver is provided. A receiver constructed according to one embodiment enables the simultaneous coexistence of ultra-wideband pulses with conventional carrier-wave signals.  
WO/2007/040814A1
A clock oscillator system for use in providing the switching regulator duty cycle control in a fixed frequency (no cycle skipping) operation is provided. In one embodiment, the circuit according to the invention uses an analog feedback l...  
WO/2007/019498A3
A method for coding time signals based on generating an asynchronous biphasic pulse train is provided. The method includes generating response signals based upon one or more input signals. A pulse comprises a positive pulse if a voltage ...  
WO/2007/036464A2
The invention relates to a frequency modulation switching circuit (1) for controlling a useful circuit (30), said switching circuit comprising an integrated component (10) provided with a saw tooth generator (11) for generating a saw too...  
WO/2007/031940A2
Generating an output pulse signal (Y), which has an output signal period (Ty), which is divided by a magnitude transition into a leading part (LP) and a trailing part (TP). During each output signal period (Ty) altering means (27 to 36) ...  
WO/2007/031840A1
A PWM signal generating circuit according to the invention includes a digital PWM signal generating circuit that generates a digital PWM signal having a resolution of 2n based on a clock signal CLK and n-bits (n ≥ 1) of digital informa...  
WO/2007/028236A2
The present application describes a method and filter for shaping a series of pulses spaced in time for subsequent transmission in a communications system, each of the pulses having a magnitude comprising the steps of providing a generic...  
WO/2007/028275A1
The prevent invention provides a pulse generating circuit and a circuit which utilizes the pulse generating circuit to implement LCD gray scale. Said LCD gray scale implementing circuit possesses pulse generating unit, gray data reading ...  
WO/2006/057649A3
A flexible and programmable circuit for generating a radio frequency signal for transmission includes two delta-sigma modulators (62,64), a quadrature clock generator (70) for generating two clock signals (71, 73) having a 90 degree phas...  
WO/2007/019498A2
A method for coding time signals based on generating an asynchronous biphasic pulse train is provided. The method includes generating response signals based upon one or more input signals. A pulse comprises a positive pulse if a voltage ...  
WO/2005/079206A3
Apparatus and methods to optimize ultra-wideband communication through wire and cable media are provided. One apparatus comprises an ultra- wideband transmitter structured to transmit a training set of ultra- wideband pulses through the ...  
WO/2007/005109A2
Methods, system (10), and computer programs for compensating for jitter in a communication system are described. A transfer function of a transmission medium (16) is measured and an output signal (20) that results from propagating an inp...  
WO/2007/000943A1
A counter circuit (6) increments the count value by one in synchronization with a clock pulse received from an oscillating part (4). A lower-order decoder (12) receives a count value from the counter circuit (6) and compares a lower-orde...  
WO2005017669A3
A system, method and apparatus for sampling an electromagnetic signal is provided. In one embodiment of the present invention, data is obtained from an electromagnetic signal by sampling the received signal and demodulating the signal wi...  
WO/2006/124155A2
A digital amplifier system for driving a capacitive load includes a digital amplifier controller responsive to a digital input command for producing a pulse density modulation signal representative of the digital input command; a switchi...  
WO2006015000A3
A method is disclosed for generating pulse width modulated pulse control signals for controlling switches in a switching power supply. First, a count value is determined of a master clock (5618) within a switching cycle of the power supp...  

Matches 251 - 300 out of 4,538