Matches 101 - 150 out of 204 < 1 2 3 4 5 >
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5880644 N-bit pulse width modulated signal generator  
A pulse width modulated signal generator is comprised of an N-bit ripple counter (12) that generates a down counted output value which is input to a combinatorial logic circuit for generating a...
5870380 Method and apparatus for reception of signals from several transmitters wherein each transmitter is characterized by their output pulse train  
The disclosure relates to a method of reception of signals from at least two transmitters (RCi), wherein for each transmitter the data ("0", "1") are represented by the time interval (T0i, T1i)...
5864582 Pulse width extension with analog command  
A method of modulating the pulse width of a pulse width signal in response to an analog signal. The steps include changing the analog signal to a digital signal, changing the digital signal to a...
5838210 Method and apparatus for generating a modulated signal  
A method and apparatus for generating a modulated signal include a pulse modulation source (215), a pulse modulator (20) for modulating a pulsed signal, a high efficiency power amplifier (230) for...
5789992 Method and apparatus for generating digital pulse width modulated signal using multiplied component and data signals  
A method for generating a pulse width modulated signal having a linear relationship to a digital input data signal includes generating a series of PWM component signals, multiplying (ANDing) each...
5686869 Pulse-width modulating device  
A pulse-width modulating device comprises: a counter for generating a plurality of counter signals of n-bit, where n is an integer of 2 or more; a fundamental waveform generator for outputting a...
5677476 Sensor and transmitter with multiple outputs  
A measuring transmitter assembly using the same lines for power input and for output signals and using a single power supply, has a first power input and signal output loop coupled to the power...
5675297 Integrated pulse-width modulation circuit with thermal shutdown circuit  
An integrated pulse-width modulation circuit with conditional temperature protection circuitry includes logic circuitry, a power output device, thermal shutdown circuitry to disable the power...
5640131 Pulse width modulation signal generator and triangular wave signal generator for the same  
A triangular wave generator circuit having a triangular wave generator unit for generating a triangular wave signal, and a comparator for comparing the generated triangular wave signal with a...
5625508 Method and apparatus for servo demodulation in a direct access storage device  
A method and apparatus are provided for servo demodulation in a direct access storage device. A readback signal is sensed from at least one disk surface and locations of positive and negative peaks...
5615228 Apparatus and method to decode a pulse width modulated serial data stream  
An integrated circuit (IC) configurable as transmitter/receiver includes a microcontroller to aid in decoding a pulse width modulated serial dam stream. The microcontroller accomplishes the...
5606296 Pulse width modulation control circuit  
A pulse width modulation control circuit of the present invention causes variation amplitudes of a sawtooth voltage in a sawtooth oscillator being synchronized by an external signal to be lowered...
5589805 Enhanced resolution pulse width modulation control  
A pulse width modulation system provides for enhanced output resolution through software control. The pulse width modulation control system normally has a control period during which the pulse...
5568095 Balanced oscillator and transmitter arrangement  
The present invention teaches an oscillator and transmitter. The balanced oscillator comprises a resonator for generating a reference signal having a resonating frequency, a first oscillator for...
5561402 Pulse width modulation method for triggering analog actuators  
For triggering analog actuators with pulse-width modulation, a pulse duty factor (TV) is specified as relative ratio of pulse time (t PU ) to period duration (T) of a triggering period. An add...
5541543 Regulating device for a telephone loud-speaker  
A fixed impedance load is provided with a signal having a variable frequency F from a line capable of supplying a variable available power. The device comprises a pulse width modulator that...
5524121 Digital data modulating method  
Disclosed is an improved digital data modulating method appropriate for stable and high-speed communication. It comprises the step of allotting each of N sequential digital data bit combinations to...
5519361 Pulse width controller adopting feedback PWM integration system employing carrier-synchronous signal  
A pulse width controller comprising a circuit for generating a carrier signal; a carrier synchronization circuit for generating a carrier synchronous variable pulse signal that varies in accordance...
5519190 Heater driving device for supplying AC power to a heater  
A heater driving device for supplying AC power to a heater of a fixing device of an image forming apparatus. The heater driving device has self arc suppression type elements between an AC power...
5504462 Apparatus for enhancing pixel addressability in a pulse width and position modulated system  
The present invention is a digital electronics system for generating multiple pulses within a predefined pixel clock period in a digital output device, where both a leading edge delay and a...
5502419 Pulse width modulation signal generation and triangular wave signal generator for the same  
A triangular wave generator circuit having a triangular wave generator unit for generating a triangular wave signal, and a comparator for comparing the generated triangular wave signal with a...
5495209 Switched-inverter modulator for producing modulated high voltage pulses  
A switched-inverter modulator for use in driving a load that comprises master and slave high voltage power supplies for providing output pulses that directly drive the load. A synchronized pulse...
5486793 Balanced RF oscillator and transmitter  
A balanced oscillator and transmitter circuit is provided which includes a pair of balanced Colpitts-type oscillators for generating an enhanced power radiating output signal. The balanced...
5485487 Reconfigurable counter and pulse width modulator (PWM) using same  
A pulse width modulator (20) includes a reconfigurable counter (30) whose width is determined by mode control bits. In one embodiment, a decoder (24) decodes the mode control bits to provide...
5473633 Process and a system for digital modulation  
A digital modulation process and apparatus for converting an input signal comprising a time variable series of sampling values, each of which sampling values remains constant within a fixed...
5457435 Pulse width modulated driver  
The present invention an apparatus provides a pulse width modulated signal to a load in response to an input signal. The apparatus receives the input signal and a feedback signal, determines a...
5438303 Pulse with modulation apparatus with plural independably controllable variable delay devices  
A pulse width modulation apparatus outputs an output pulse having an arbitrary width with respect to an arbitrary point in a pulse period. A delay means associated with a pulse cycle have...
5428639 Two's complement pulse width modulator and method for pulse width modulating a two's complement number  
A pulse width modulator (PWM) (20) receives a two's complement input number and separates a sign bit from remaining less significant bits. The PWM converts these bits into an unsigned number in...
5428321 Pulse width modulator having controlled delay circuit  
A pulse width modulation circuit apparatus of a digital type using a delay circuit and a decoder, which is provided with a delay control circuit for driving the reset-set type flip-flop of a last...
5404116 Circuit for generating pulse width modulation signal  
A circuit for generating pulse width modulation (PWM) signal is formed of an U/D counter 4 for regulating a control cycle of a PWM waveform, a register 1C for storing on-timing information of the...
5387822 Error signal isolator circuit  
An error signal isolator circuit for conveying an error signal across an electrical isolation boundary such as an external pulse transformer employs a level shifting process whereby a controllable...
5363405 Vehicle communications network transceiver, bus driver therefor  
A transceiver device for use with a microcontroller and a symbol encoder decoder device (forming a node in a communications network) for transmitting and receiving variable pulse width modulated...
5363406 Pulse width modulation apparatus  
A pulse width modulation apparatus having a storage circuit for temporarily storing pulse width data inputted over a data bus and then inverting it, the pulse width data determining a pulse width,...
5361048 Pulse width modulator having a duty cycle proportional to the amplitude of an input signal from a differential transducer amplifier  
A pulse width modulator generates a linear sawtooth ramp waveform from a pulse signal to compare against an amplified input signal derived from a transducer output voltage signal. A first circuit...
5357219 Pulse width modulator including incrementer/decrementer  
A pulse width modulator comprises: a reload register (8) which stores data D1 set as an initial value of data D and loads to a waveform timer (3), every time one waveform cycle is counted; a...
5298871 Pulse width modulation signal generating circuit  
A microcomputer having a signal generating circuit which generates pulse width modulation signals defined by a carrier wave, and which controls controlled portions according to pulse width...
5295158 Dynamically selectable multimode pluse width modulation system  
A dynamically selectable multimode pulse width modulation system includes ramp generator means for generating a ramp; pulse edge modulation means responsive to the ramp generator means for defining...
5291562 Image signal processing apparatus producing a narrowed pulse width modulated signal using an asymmetrically centered triangle reference waveform  
An image signal processing apparatus including an image signal output device activated in synchronism with a pixel synchronizing signal for outputting therefrom an image signal which defines, as a...
5231363 Pulse width modulating producing signals centered in each cycle interval  
A pulse width modulating circuit including a shift register and a subtraction circuit, with first and second binary counters respectively connected to the outputs of the shift register and the...
5208559 Pulse shaping system for a pulse width modulation system  
A pulse shaping system for a pulse width modulation system includes: a ramp generator for generating a ramp signal having a ramp portion and a rest portion; a latch signal generator providing a...
5198785 Dual edge pulse width modulation system  
A dual edge pulse width modulation system includes a ramp generator for generating a voltage ramp; an n bit digital to analog converter having a normal and an inverted output for establishing a...
5192922 Anti-false triggering system for a pulse width modulation system  
An anti-false triggering system for a pulse width modulation system includes a ramp generator for generating a ramp signal having a ramp portion and a rest portion; a latch enable signal generator...
5185765 High speed data communication system using phase shift key coding  
An improved binary data communication system employs an improved VPSK encoding procedure wherein each input data bit has a bit period of M clock periods, and the data bit polarity changes are phase...
5148168 Digital-to-analog converter using pulse-width modulation  
A digital-to-analog converter utilizing a PWM system for converting input digital data to PWM signals and finally to an analog signal divides the sampling period of the input digital data into an...
5144265 Pulse width modulation technique  
Improved pulse width modulation technique provides for an increased sampling rate without an increased ON/OFF rate at associated control devices. Both ON/OFF and OFF/ON edges in a PWM signal are...
5140611 Pulse width modulated self-clocking and self-synchronizing data transmission and method for a telephonic communication network switching system  
Transmissions of synchronous digital data from a master control unit (50A) to a slave, network termination unit (50B) are via a pulse width modulated data stream including pulse width modulated...
5119045 Pulse width modulation circuit  
A pulse width modulation circuit comprising a voltage control type oscillator composed of a ring oscillator which comprises a plurality of delay elements and generates a plurality of output signals...
5113158 Pulse width modulation circuit  
A pulse width modulation circuit includes an operation unit which generates a compensation signal based on the product of a deviation of an input signal from a first reference value and a deviation...
5070312 Pulse width modulation circuit of programmable subframe system  
A PWM circuit of programmable subframe system includes a control circuit 20 for generating control signals Cm-CO according to the number of subframes, a PWM data register 60 for storing PWM data, a...
5053729 Pulse-width modulator  
A pulse-width modulator accepts a 7 bit binary signal input which is gated to an adder circuit. The adder is also supplied with a constant binary 1 input and has an output that is coupled to an 8...
Matches 101 - 150 out of 204 < 1 2 3 4 5 >