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7400282 Quantum turing machine  
A quantum Turing machine constituted using a quantum bit created by localizing a phase difference soliton S between superconducting electrons existing in each of multiple of bands in a ring R 0 ...
7365663 Flux-quantizing superconducting analog to digital converter (ADC)  
A superconducting analog-to-digital converter includes a superconducting input loop to which is applied an analog voltage to be converted to a digital format. The superconducting loop includes two...
7345604 Analog to digital conversion using recurrent neural networks  
A system for converting an analog signal into a digital data stream includes a recurrent network with a plurality of converter circuits that individually receive the same analog signal as input....
7330138 Asynchronous sample rate correction by time domain interpolation  
A circuit is provided to correct a sample rate by way of time domain interpolation having a first circuit loop having an up/down counter configured to receive an input signal and a feedback signal...
7307266 Method and apparatus for an optically clocked optoelectronic track and hold device  
A method and apparatus for optically clocked optoelectronic track and hold (“OCOETH”) device. The OCOETH device includes a diode bridge, input node, at least two current sources and at least...
7274317 Transmitter using vertical BJT  
A transmitter having a vertical BJT, capable of reducing power consumption, carrier leakage of a local oscillator and an error vector magnitude (EVM), is disclosed. In the transmitter, vertical...
7268713 Superconducting circuit  
A circuit includes a latch circuit including a Josephson junction and configured to perform a latch operation based on a hysteresis characteristic in response to a single flux quantum, a load...
7253759 Continuous-time delta-sigma modulators using distributed resonators  
A distributed resonator or filter in a continuous-time delta-sigma modulator is disclosed, where the transfer function of the resonator or filter repeats every F s , where F s is the sampling...
7227480 Current steering type single flux quantum circuit  
Disclosed is a single flux quantum circuit that uses a flux quantum as an information carrier, which generates a SFQ clock signal with little clock jitter and supplies the SFQ clock signal to a SFQ...
7224301 Floating gate digital-to-analog converter  
The present invention provides a DAC constructed from a series of floating gate devices which are programmable to a series of predetermined values. Addressing one or more of the programmed floating...
7158062 Clocked DAC current switch  
A switch having a first arrangement for providing a first set of first and second complementary intermediate signals; a second arrangement for providing a second set of third and fourth...
7129872 Audio signal analog-to-digital converter utilizing a transformed-based input circuit  
An apparatus for converting an input analog audio signal into digital form including an analog-to-digital converter. An amplifier circuit and step-down transformer provide an interface for the...
7129870 Superconducting latch driver circuit generating sufficient output voltage and pulse-width  
A circuit includes a latch circuit including a Josephson junction and configured to perform a latch operation based on a hysteresis characteristic in response to a single flux quantum, a load...
7129869 Superconductor semiconductor integrated circuit  
In an A/D converter having a single flux quantum circuit having a flux quantum as an information carrier, a superconducting amplifier circuit driven by an AC current, and a semiconductor circuit,...
7075467 Analog/digital converter for microwave frequencies  
The converter of the invention essentially comprises, along the path of the microwave signal to be measured, a series of superconducting loops spaced apart by x/2 and each having a critical current...
7071858 Method and system for a glitch-free differential current steering switch circuit for high speed, high resolution digital-to-analog conversion  
Provided are a method and system for reducing glitch in a switch circuit. A system includes a current-steering switch circuit including a main differential pair switch coupled to a first tail...
7049609 Method of verifying proximity effect correction in electron beam lithography  
Verifying whether correcting data used for proximity effect correction is normal before or during actual lithographic writing. A lithographically written region is virtually divided into subfields....
7038604 Superconducting multi-stage sigma-delta modulator  
There is provided a superconducting multi-stage sigma-delta modulator including a first superconducting sigma-delta modulator having a first integrator and a first comparator and outputting a...
7038603 Analog to digital converter using analog-valued floating-gate transistors  
Analog-valued floating-gate transistors are used as trimmable circuit components for modifying and/or controlling the gain, phase, offset, frequency response, current consumption, and/or transfer...
6972702 1-Of-N A/D converter  
A flash analog-to-digital converter (ADC). Each comparator of the flash ADC has an OFF-ON-OFF transfer function. For each analog value to be converted, only one comparator is in the ON condition,...
6917319 Digital to analog converter using tunneling current element  
A method and structure for a digital-to-analog converter comprising a voltage source supply; a voltage division stack connected to the voltage source supply; a multiplexer connected to the voltage...
6907090 Method and apparatus to recover data from pulses  
Methods and corresponding apparatus to recover data from a signal comprising groups of pulses generated in response to analog waveforms are described. Data recovery in accordance with the invention...
6906650 Method and apparatus for generating a pulse of very narrow width  
A circuit includes a resonant tunneling device which is responsive to an input signal for causing an electrical signal characteristic to undergo a quantum jump in magnitude that takes an interval...
6885325 Sub-flux quantum generator  
A sub-flux quantum generator includes an N-turn ring having a plurality of connected turns about a common aperture. The width of each respective turn in the N-turn ring exceeds the London...
6882293 Method for forming Josephson junction, Josephson junction and apparatus using Josephson junction  
A Josephson junction has a Si substrate, a two layer film comprising an amorphous MgO layer and a high orientation MgO layer on the Si substrate, and a NbN film or the NbCN film laminated on the...
6864816 Method and apparatus for high-speed quantization using resonant tunneling technology  
An apparatus includes a quantizer circuit having a resonant tunneling device with an operational characteristic that includes a first region of unstable operation, and second and third regions of...
6853323 Differential voltage output digital-to-analog converter  
A digital-to-analog converter (DAC) for use in high-speed wireless communications. The DAC of the invention comprises a plurality of current steering cells to bi-directionally provide a...
6756925 PSK RSFQ output interface  
A Rapid Single-Flux-Quantum (“RSFQ”) encoder output interface device is provided. The RSFQ output interface device includes a variable phase multi-junction voltage controlled oscillator (VCO)...
6750794 Application of single flux quantum pulse interaction to the simultaneous sampling in-phase and quadrature analog-to-digital converter  
A superconducting oscillator/counter analog-to-digital converter ( 50 ) that provides simultaneous in-phase and quadrature-phase of an RF input signal. The RF input signal is converted to a series...
6664909 Method and apparatus for trimming high-resolution digital-to-analog converter  
A method and apparatus for trimming a high-resolution digital-to-analog converter (DAC) utilizes floating-gate synapse transistors to trim the current sources in the DAC by providing a trimmable...
6653962 Superconducting dual function digitizer  
A dual function superconducting digitizer circuit which can selectively function either as an analog-to-digital converter (ADC) or as a time-to-digital converter (TDC). Superconducting ADCs and...
6650268 Method and apparatus for a pulse decoding communication system using multiple receivers  
A multiple receiver approach is disclosed for a pulse decoding communication system, which can enhance system robustness and increase information carrying capacity. Two or more receivers are used...
6603417 CMOS DAC with high impedance differential current drivers  
High-performance, digital-to-analog conversion (DAC) suitable for use in systems implemented with low-voltage, low-power integrated circuit fabrication processes is disclosed. Encoder circuitry...
6509853 Subranging technique using superconducting technology  
Subranging techniques using “digital SQUIDs” are used to design systems with large dynamic range, high resolution and large bandwidth. Analog-to-digital converters (ADCs) embodying the...
6498578 Method and apparatus for generating pulses using dynamic transfer function characteristics  
A method and apparatus for generating pulses that includes a circuit having a dynamical transfer function is disclosed. The circuitry exhibits oscillatory behavior when its operating point is...
6498572 Method and apparatus for delta modulator and sigma delta modulator  
According to the invention, oscillating signals are generated from analog signals by providing an analog signal having a variable slope or amplitude to a circuit with a variable operating point and...
6486819 Circuitry with resistive input impedance for generating pulses from analog waveforms  
A decoder for generating output pulses or oscillations in response to input analog waveforms includes a circuit having a variable operating point and having a transfer function characterized by an...
6476744 Method and apparatus for generating pulses from analog waveforms  
A method and apparatus that allows an analog waveform to carry multilevel of information is disclosed. This allows information capacity enhancement in pulse decoding communication system by...
6459396 Electric current switch circuit and D/A converter using same  
An electric current switch circuit in accordance with the present invention is arranged so that an output of an IIL logic circuit is connected with the base of the first transistor of NPN type that...
6456216 Method and apparatus for generating pulses from analog waveforms  
A method and apparatus are provided for generating output pulses or oscillations in response to input analog waveforms which involves exciting, with a known but arbitrary analog waveform, a circuit...
6456215 Method and system for quantizing an input signal  
In one aspect of the invention, a system for quantizing an input signal having a time-varying voltage includes a voltage-to-current converter operable to convert the input signal to a proportional...
6456214 High-speed comparator utilizing resonant tunneling diodes and associated method  
A high-speed comparator and an associated method are disclosed. The comparator utilizes input circuitry to receive the input signal and utilizes resonant tunneling diode (RTD) circuitry to provide...
6452530 Method and apparatus for a pulse decoding communication system using multiple receivers  
A multiple receiver approach is disclosed for a pulse decoding communication system, which can enhance system robustness and increase information carrying capacity. Two or more receivers are used...
6452520 Gated counter analog-to-digital converter with error correction  
A superconducting A/D converter ( 10 ) has an error correction system ( 70 ) for eliminating non-linearities in a primary quantizer ( 30 ). The converter ( 10 ) includes a primary quantizer ( 30 ),...
6407688 CMOS DAC with high impedance differential current drivers  
High-performance, digital-to-analog conversion (DAC) suitable for use in systems implemented with low-voltage, low-power integrated circuit fabrication processes is disclosed. Encoder circuitry...
6388600 Asynchronous superconductor serial multiply-accumulator  
An oscillator/multiply-accumulator AID converter ( 100 ) which simultaneously provides frequency downconversion, band pass filtering and analog-to-digital conversion of an analog signal, where the...
6388597 &Dgr -&Sgr modulator and &Dgr -&Sgr A/D converter  
A Δ-Σ converter comprises a Δ-Σ modulator and a digital filter. The Δ-Σ modulator has a comparator having two resonant tunnel diodes connected to each other in series between two terminals...
RE37619 Skewless differential switch and DAC employing the same  
A differential switch accepts a binary control signal and its complement (which may be skewed with respect to the control signal) and latches both signals simultaneously. The latched output signals...
6366229 System for continuous-time modulation  
A continuous-time modulator comprises a modulator bridge having a bridge input terminal, an inverted bridge input terminal, a clock terminal and an inverted clock terminal. The modulator further...
6366226 System for quantizing an analog signal utilizing a resonant tunneling diode differential ternary quantizer  
A system for quantizing an analog signal comprises an input terminal for receiving an analog input signal, an inverted input terminal for receiving an inverted input signal, a clock terminal for...
Matches 1 - 50 out of 307 1 2 3 4 5 6 7 >