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Patent Searching and Data


Matches 351 - 400 out of 4,563

Document Document Title
WO/2005/074135A1
The invention is a system for selecting a peripheral, the peripheral receiving a first clock frequency. The invention comprises the following. A processing circuit receives a second clock frequency, where the first and second clock frequ...  
WO/2005/065070A2
A system and method for generating transmit weighting values (514) for signal weighting that may be used in various transmitter and receiver structures is disclosed herein. The weighting values are determined as a function of frequency b...  
WO2005038645A3
A product-sum operation circuit includes a pulse width/digital conversion circuit (9) which converts a pulse signal having a pulse width representing an operand value into a digital signal, a sorting circuit (4) which outputs, in descend...  
WO/2005/057787A1
A bi-phase modulator for Ultra Wideband (UWB) waveforms uses a symmetrical transformation device and a selector device to produce bi-phase modulated UWB waveforms in response to an information signal. The symmetrical transformation devic...  
WO2005046056A3
A technique to provide a distortionless and predictable real-time PWM waveform based on a sequence of combinations of programmed period and width values received from a processor. In one example embodiment, this is accomplished by using ...  
WO2005018083A3
A self-adjusting PWM regulator which minimizes undershoot and overshoot conditions is disclosed. The regulator includes a charge pump, a voltage comparator circuit, and a latch circuit. The input of the voltage comparator circuit include...  
WO/2005/048459A2
An electrical signalling system comprises a modulator arranged to accept information and encode that information in an alternating signal containing repeated rising and falling edges, the encoding being by way of the time between consecu...  
WO/2005/046056A2
A technique to provide a distortionless and predictable real-time PWM waveform based on a sequence of combinations of programmed period and width values received from a processor. In one example embodiment, this is accomplished by using ...  
WO2004059848A3
A digital signal modulator modulates a digital input signal (507) to drive a load (324) such as an opposed current amplifier or other opposed current converter. In one embodiment, a digital signal modulator modulates a digital input sign...  
WO2005011118A3
A DPWM (1) has a delay lock loop (4) which receives an input clock signal and provides an out-of-phase delayed clock at the output of each of eight delay cells (35). A multiplexer (5) selects one of the delay cell outputs at any one time...  
WO/2005/038645A2
A product-sum operation circuit includes a pulse width/digital conversion circuit (9) which converts a pulse signal having a pulse width representing an operand value into a digital signal, a sorting circuit (4) which outputs, in descend...  
WO/2005/038577A2
A modulation method, referred to as dual phase pulse modulation (DPPM), represents digital data as a series of high and low pulses (Fig. 2B) whose widths represent groups of M data bits (00, 01, 10, 11), with both the high and low pulses...  
WO/2005/036747A2
A programmable pulse generator (100) having a clock signal delay chain (10), multiplexer (20), and reduced voltage charge circuit (60). The clock delay chain (10) comprises a plurality of propagated delays, coupled to the multiplexer (20...  
WO2003023962A8
A mono-cycle generating circuit includes a multiplexer, a pulse generating circuit, and a buffer circuit. The multiplexer receives data of a logical 1 or a logical 0, determines whether to generate a positive mono-cycle or a negative mon...  
WO/2005/027337A1
An RF power oscillator for contactless card antennas shapes a carrier signal at the operating frequency utilizing a delay circuit having a number of taps for delaying the carrier signal by different lengths of time. The delayed signals a...  
WO/2005/018083A2
A self-adjusting PWM regulator which minimizes undershoot and overshoot conditions is disclosed. The regulator includes a charge pump, a voltage comparator circuit, and a latch circuit. The input of the voltage comparator circuit include...  
WO/2005/011118A2
A DPWM (1) has a delay lock loop (4) which receives an input clock signal and provides an out-of-phase delayed clock at the output of each of eight delay cells (35). A multiplexer (5) selects one of the delay cell outputs at any one time...  
WO2004084388B1
A sinewave inverter for converting unstable DC voltage from a variable source (10) such as batteries, fuel cells, wind mills and the like into a distortionless sinusoidal AC voltage of constant amplitude and constant frequency is provide...  
WO/2005/004330A1
The invention relates to a method of establishing a PWM-modulated output signal representation (OS), providing a stream of parallelly determined intersection representations (PIR) on the basis of a stream of parallel reference signal rep...  
WO/2004/109917A1
A high resolution pulse width modulation (PWM) or voltage controlled output (DCO) generator is disclosed. The resolution is increased over that of the circuit clock by delaying the generated signal through a series of delays, all of whic...  
WO/2004/109901A1
A PWM control system includes: PWM basic wave generation means (12) for forming a PWM basic wave by dividing a basic frequency signal; PWM cycle setting means (22) for setting a PWM cycle according to the PWM basic wave; duty ratio forma...  
WO2004084392A3
A DC-DC converter includes a variable frequency oscillator (36), a control system and a power train. The DC-DC converter is well suited for use in a cell phone. The control system uses the output of the oscillator to control the power tr...  
WO/2004/105233A1
The invention relates to a method of estimating an intersection between at least two continuous signal representations (SR1, SR2) in a pulse width modulator, at least one of said continuous signal representations (SR1, SR2) being non-lin...  
WO/2004/105242A2  
WO2004084388A3
A sinewave inverter for converting unstable DC voltage from a variable source (10) such as batteries, fuel cells, wind mills and the like into a distortionless sinusoidal AC voltage of constant amplitude and constant frequency is provide...  
WO/2004/100373A1
The present invention includes a system that has been developed to vary the starting and stopping of a pulse train of arbitrary phase without glitches, spurious pulses, or spurious change in duty cycle. This is accomplished by a system f...  
WO2004034564A3
Method and system are disclosed for automated calibration of the VCO gain in phase modulators. The method and system of the invention comprises synthesizing, in a phase modulator, a signal having a given output frequency using a controll...  
WO2004075403A3
An electronic circuit has a programmable logic cell with a plurality of programmable logic units that are capable of being configured to operate in a multi-bit operand mode and a multiplexing mode. The programmable logic units are couple...  
WO/2004/084392A2
A DC-DC converter includes a variable frequency oscillator (36), a control system and a power train. The DC-DC converter is well suited for use in a cell phone. The control system uses the output of the oscillator to control the power tr...  
WO/2004/084388A2
A sinewave inverter for converting unstable DC voltage from a variable source (10) such as batteries, fuel cells, wind mills and the like into a distortionless sinusoidal AC voltage of constant amplitude and constant frequency is provide...  
WO2004065198A3
The invention relates to a pulse-width modulator circuit for the production of a reference signal exhibiting a desired pulse duty factor, comprising an adjustment unit comprising at least one memory register and a counter. The memory reg...  
WO/2004/075403A2
An electronic circuit has a programmable logic cell with a plurality of programmable logic units that are capable of being configured to operate in a multi-bit operand mode and a multiplexing mode. The programmable logic units are couple...  
WO/2004/065198A2
The invention relates to a pulse-width modulator circuit for the production of a reference signal exhibiting a desired pulse duty factor, comprising an adjustment unit comprising at least one memory register and a counter. The memory reg...  
WO2004030211A3
The invention relates to a circuit configuration for determining the average value of an input signal (s), comprising a signal input (1) for receiving the input signal (s) and comprising a signal output (13) for outputting an output sign...  
WO/2004/059848A2
A digital signal modulator modulates a digital input signal (507) to drive a load (324) such as an opposed current amplifier or other opposed current converter. In one embodiment, a digital signal modulator modulates a digital input sign...  
WO/2004/055964A1
A pulse modulation arrangement for a switch mode regulator includes a frequency controlled oscillator (20). A counter (22) is enabled by a clock signal (Fs) for the regulator to count a controlled number of output pulses of the oscillato...  
WO/2004/054104A1
A method and apparatus is provided to generate a pulse-width modulated (PWM) waveform with enhanced features in accordance with a pre-determined protocol using a standard microprocessor. The method and apparatus is able to handle both va...  
WO/2004/049569A1
A PWM generator (100; 200; 300; 400) is described, which does not require a separate saw-tooth generator and a separate comparator for generating a modulated pulsed signal. According to the invention, the input signal (Sin) is supplied t...  
WO/2004/047275A1
A pulse width modulation system for use in a switching power supply circuit provides high-resolution pulse width modulated signals. The pulse width modulation system is configured to receive a control signal comprising a (m+n)-bit binary...  
WO/2004/040759A1
A circuit and method for providing a linear power to a load uses pulse modulation technique where the frequency and pulse width of the pulse width modulated waveform driving the load are varied simultaneously. In one aspect of the disclo...  
WO/2004/036749A1
The invention relates to a method and a device for the production of two-channel or multi-channel pulse-width-modulated rectangular pulses (Aa, Ab, Ac; Ba, Bb, Bc). According to the invention, exactly one pulse is discharged within a per...  
WO/2004/034564A2
Method and system are disclosed for automated calibration of the VCO gain in phase modulators. The method and system of the invention comprises synthesizing, in a phase modulator, a signal having a given output frequency using a controll...  
WO/2004/030211A2
The invention relates to a circuit configuration for determining the average value of an input signal (s), comprising a signal input (1) for receiving the input signal (s) and comprising a signal output (13) for outputting an output sign...  
WO2003067839A3
A modulated ultra wideband pulse generation system is provided. The system comprises a pulse waveform generator circuit (101) operable to generate an on-off pulse waveform (102), and a modulating circuit operable to receive a modulating ...  
WO2003021778A3
A monocycle forming network may include a monocycle generator, up and down pulse generators, data modulators and clock generation circuits. The network may generate monocycle pulses having very narrow pulse widths, approximately 80 picos...  
WO2002078184A3
A pulse-width modulation technique uses a counter load value that alternates between a duty-cycle defining value and its complement. In one embodiment, a pulse-width modulated signal is produced as a function of a control signal used to ...  
WO2003085699A3
A method and an image sensor circuit (2) for providing a bit stream pulse modulated signal at a controlled bit rate. The image sensor circuit (2) has a two-dimensional array of pixel signal pulse frequency modulators (22) each having a p...  
WO/2004/004123A1
A signal generator has matched reference (4) and modulation (6) ramp circuits, each including current source (8, 32), capacitance (10) charged by the current source, voltage detector (18) and switch (24). The output of one of the voltage...  
WO2002078179B1
A pulse width modulator (PWM) audio power amplifier (10) with a switch mode power converter (206) is provided that may adjust the duty of the switch mode power converter (206) based on output current. The PWM audio power amplifier (10) m...  
WO2003085415A3
Direct up-conversion of a signal (10) is accomplished using a sampling pulse generator circuit (12, 16, 20, 24) and a gated differential amplifier 26, enabled by the sampling signal (25). When not enabled, the output of the differential ...  

Matches 351 - 400 out of 4,563