Abstract: An intelligent weightlifting apparatus includes a frame including vertically oriented members and safety rails that are selectively moveable up and down relative to the vertically oriented members. The apparatus includes a position sensor that is configured to detect a position of a barbell. The apparatus includes a computer that is configured to control movement of the safety rails based on data from the position sensor such that a predefined distance is maintained between the safety rails and the barbell during a free weight exercise.

Abstract: Systems, methods, and devices to facilitate insertion of certain leads with electrode(s) into patients are described. Leads can be implanted to work in conjunction with a cardiac pacemaker or cardiac defibrillator. A lead for cardiac therapy may be inserted into an intercostal space associated with the cardiac notch of a patient. Devices for delivery may include, for example, a delivery system coupled with an electrical lead and having a handle, a component advancer and insertion tips. The handle is configured to be actuated by an operator and the component advancer is configured to advance an electrical lead into the patient. The insertion tips can be configured to close around the electrical lead within the component advancer, to push through biological tissue, and to open to enable the lead to advance into the patient. The electrical lead can also be maintained in a particular orientation during the advancement into the patient.

Abstract: Information relating to a non-qualified digital identifier in a context of a digital service being provided is received. The non-qualified digital identifier is associated with one or more qualified digital identifiers. It is determined that the one or more qualified digital identifiers would be authorized for the digital service. The non-qualified digital identifier is authorized to access to the digital service as a result of the association of the nonqualified digital identifier with the one or more qualified digital identifiers.

Abstract: A device comprises filter circuitry and non-linear mixing devices. The filter circuitry comprises a first port, a second port, a first bandpass filter, and a second bandpass filter. The non-linear mixing devices are responsive to control signals to couple poles of the first bandpass filter to respective poles of the second bandpass filter to cause non-reciprocal transmission of signals from the first port to the second port.

Abstract: A system comprises a superconducting quantizing inductor and superconducting control circuitry, which is coupled to the superconducting quantizing inductor to form a superconducting loop, and which is configured to selectively inject a quantized amount of positive or negative current into the superconducting loop to generate a quantized circulating current in the superconducting loop. The quantized circulating current comprises a time-varying or static circulating current. The superconducting control circuitry comprises first and second current generator circuits which comprise a first and second plurality of Josephson junctions, respectively, which are configured to inject quantized amounts of positive current and negative current into the superconducting loop in response to single flux quantum pulses.

Abstract: A system comprises a superconducting quantizing inductor and superconducting control circuitry, which is coupled to the superconducting quantizing inductor to form a superconducting loop, and which is configured to selectively inject a quantized amount of positive or negative current into the superconducting loop to generate a quantized circulating current in the superconducting loop. The quantized circulating current comprises a time-varying or static circulating current. The superconducting control circuitry comprises first and second current generator circuits which comprise a first and second plurality of Josephson junctions, respectively, which are configured to inject quantized amounts of positive current and negative current into the superconducting loop in response to single flux quantum pulses.

Abstract: According to one embodiment, a method, computer system, and computer program product for wrong way driving detection is provided. The embodiment may include monitoring indications of wrong way traversal along a traversal path through one or more on-board, Internet of Things (IOT) sensors. The embodiment may also include determining whether wrong way traversal of the traversal path is occurring based on a risk assessment value satisfying a preconfigured threshold. The embodiment may further include, in response to determining the risk assessment value satisfies the preconfigured threshold, performing a corrective action to ameliorate the wrong way traversal.

Abstract: A device includes a logic circuit comprising a clockless single flux quantum logic gate which comprises a plurality of input ports, an output port, an output Josephson junction, and a plurality of dynamic storage loop circuits and isolation buffer circuits. The output Josephson junction is coupled to an output of each dynamic storage loop circuit and configured to drive the output port. Each isolation buffer circuit is coupled to a respective input port, and a respective dynamic storage loop circuit and configured to absorb a circulating current of an antifluxon which is injected into the respective dynamic storage loop circuit to prevent the antifluxon from being output from the respective input port, and to inject a fluxon into the respective dynamic storage loop circuit in response to a single flux quantum pulse applied to the respective input port, and annihilate an antifluxon present in the respective dynamic storage loop circuit.

Abstract: A radio-frequency (RF) to direct current (DC) converter is provided. When a DC electrical current is applied via a DC input port of the converter, the DC electrical current is shunted to ground through a Josephson junction (JJ) of the converter and substantially no DC electrical current flows through a resistor of the converter, and when an RF electrical current is applied via an RF input port of the converter, output trains of SFQ current pulses from a DC to SFQ converter of the RF-to-DC converter with pulse-to-pulse spacing inversely proportional to the RF electrical current frequency cause the JJ to switch at a rate commensurate with an RF frequency of the RF electrical current to generate a steady state voltage across the JJ linearly dependent on the RF frequency.

Abstract: A device includes a logic circuit comprising a clockless single flux quantum logic gate which comprises a plurality of input ports, an output port, an output Josephson junction, and a plurality of dynamic storage loop circuits and isolation buffer circuits. The output Josephson junction is coupled to an output of each dynamic storage loop circuit and configured to drive the output port. Each isolation buffer circuit is coupled to a respective input port, and a respective dynamic storage loop circuit and configured to absorb a circulating current of an antifluxon which is injected into the respective dynamic storage loop circuit to prevent the antifluxon from being output from the respective input port, and to inject a fluxon into the respective dynamic storage loop circuit in response to a single flux quantum pulse applied to the respective input port, and annihilate an antifluxon present in the respective dynamic storage loop circuit.

Abstract: A method of using Josephson Junctions to convert the envelope of radio-frequency signals into baseband control pulses includes injecting a biasing current into an envelope detector circuit. The biasing current is identified based on first and second critical currents of superconducting devices in the envelope detector circuit. The first critical current corresponds to the envelope detector circuit receiving no RF signals. The second critical current corresponds to the envelope detector circuit receiving maximum RF signals. The method further includes receiving a modulated radio frequency (RF) signal at the envelope detector circuit to detect an envelope of the received RF signal. The output of the envelope detector circuit is used to drive an output load. The output is generated based on the detected envelope by the envelope detector circuit.

Abstract: Techniques facilitating a quantum gate between qubits using a tunable coupler are provided. In one example, a quantum coupler device can comprise a Josephson ring modulator (JRM) that is operatively coupled to first and second qubits in a balanced bridge topology via respective first and second capacitive devices. The JRM provides tunable coupling between the first and second qubits.

Abstract: A method of using Josephson Junctions to convert the envelope of radio-frequency signals into baseband control pulses includes injecting a biasing current into an envelope detector circuit. The biasing current is identified based on first and second critical currents of superconducting devices in the envelope detector circuit. The first critical current corresponds to the envelope detector circuit receiving no RF signals. The second critical current corresponds to the envelope detector circuit receiving maximum RF signals. The method further includes receiving a modulated radio frequency (RF) signal at the envelope detector circuit to detect an envelope of the received RF signal. The output of the envelope detector circuit is used to drive an output load. The output is generated based on the detected envelope by the envelope detector circuit.

Abstract: One or more processors receive data associated with delivery of a package to a delivery drop-off area. The data includes delivery history of the drop-off area, current and predicted weather conditions, customer profile data, and package content information. The one or more processors detect surface conditions of the delivery drop-off area. The one or more processors determine a hazardous condition for retrieval of a delivered package in the delivery drop-off area, based on the images and sensor data received from the delivery vehicle and processed by one or more machine learning models. The one or more processors perform actions to mitigate the hazardous condition at the delivery drop-off area, and the one or more processors provide a notification updating the hazardous condition in the delivery drop-off area and the at least one mitigating action taken.

Abstract: One or more systems, devices and/or methods of use provided herein relate to a device that can facilitate selective switching between band pass and band stop filter modes and/or can provide reflectionless or near reflectionless function. A device can comprise a filter circuit coupled between a pair of ports and comprising a direct current superconducting quantum interference device (DC SQUID), wherein the filter circuit is selectively activatable by varying the inductance of the DC SQUID. Applying flux bias to the DC SQUID can allow for the switching between the band pass and band stop filter modes.

Abstract: A retrieving component connects to a server to download a cue stack for the interactive event with the cue stack having a series of cues for a plurality of effects, including at least one of a screen color effect, a screen image effect, and a flashing effect, arranged in a predetermined order. A receiving component receives at least one cue trigger from a localized trigger generator. A rendering component matches the cue trigger to a cue within the cue stack. The rendering component can activate the screen to display a color in response to a cue for a screen color effect, can activate the screen to display an image in response to a cue for a screen image effect, and can activate the flashing device in response to a cue for a flashing effect.

Abstract: A radio-frequency (RF) to direct current (DC) converter is provided. When a DC electrical current is applied via a DC input port of the converter, the DC electrical current is shunted to ground through a Josephson junction (JJ) of the converter and substantially no DC electrical current flows through a resistor of the converter, and when an RF electrical current is applied via an RF input port of the converter, output trains of SFQ current pulses from a DC to SFQ converter of the RF-to-DC converter with pulse-to-pulse spacing inversely proportional to the RF electrical current frequency cause the JJ to switch at a rate commensurate with an RF frequency of the RF electrical current to generate a steady state voltage across the JJ linearly dependent on the RF frequency.

Abstract: An embodiment of the invention may include a circuit structure. The circuit structure may include a wiring tree located between a feeding Josephson transmission line (FJTL) and a global bias line. The circuit may include the wiring tree having an H-tree structure, wherein each branch of the H-tree is connected by a current limiting junction of the FJTL, and wherein a single output port of the H-tree structure is connected to the global bias line. Another embodiment of the invention may include a circuit structure a circuit structure a plurality of feeding Josephson transmission lines (FJTLs) located between a feed line and a global bias line. The path of from the feed line through each FJTL and to the global bias line is substantially similar.

Abstract: One or more systems, devices and/or methods of use provided herein relate to a device that can facilitate selective switching between band pass and band stop filter modes and/or can provide reflectionless or near reflectionless function. A device can comprise a filter circuit coupled between a pair of ports and comprising a direct current superconducting quantum interference device (DC SQUID), wherein the filter circuit is selectively activatable by varying the inductance of the DC SQUID. Applying flux bias to the DC SQUID can allow for the switching between the band pass and band stop filter modes.

Abstract: One or more systems, devices, methods of use and/or methods of fabrication provided herein relate to a device that can facilitate qubit measurement with isolation imposed between a quantum processor and a respective qubit measurement circuit and/or which respective qubit measurement circuit can have a small footprint, such as within a respective cryogenic chamber of a quantum system. According to one embodiment, a device comprises an isolator circuit having a bandpass filter configuration coupled between a pair of ports and the bandpass filter configuration comprising two or more poles. Two or more shunt resonators can be realized as the two or more poles, wherein the two or more shunt resonators can comprise DC SQUIDs and can be coupled together with one or more admittance inverters. A non-reciprocal signal transmission can be generated between the two ports by RF pumping the DC SQUIDs.