Embodiments relate to identifying frequencies to be protected at a victim integrated circuit (IC) and sending protection information including the identified frequencies to an aggressor IC. The aggressor IC configures its subsystems or circuits to operate using operating frequencies that prevents spurs that may interfere with the frequencies identified in the protection information. If not all of the frequencies in the protection information can be protected, the aggressor IC selects a subset of the frequencies to be protected. Then, the aggressor IC configures the operating frequencies of its subsystems or circuits so that spurs that they generate do not interfere with the selected frequencies.

Embodiments relate to identifying frequencies to be protected at a victim integrated circuit (IC) and sending protection information including the identified frequencies to an aggressor IC. The aggressor IC configures its subsystems or circuits to operate using operating frequencies that prevents spurs that may interfere with the frequencies identified in the protection information. If not all of the frequencies in the protection information can be protected, the aggressor IC selects a subset of the frequencies to be protected. Then, the aggressor IC configures the operating frequencies of its subsystems or circuits so that spurs that they generate do not interfere with the selected frequencies.

A method of operating a reconfigurable quadrature coupler is disclosed. The method includes determining a first switchable impedance to provide a second port reflection coefficient by operating a coupled port transformer, which coupled port transformer is coupled to a second port having a coupled port transmission line connected to a first transistor; determining a second switchable impedance to provide a third port reflection coefficient by operating an isolation port transformer, which isolation port transformer is coupled to a third port having an isolation port transmission line connected to a second transistor; and determining a fourth switchable impedance to provide a fourth port reflection coefficient by operating a through port transformer, which through port transformer is coupled to a fourth port having a through port transmission line connected to a third transistor, and switching on or off selected ones of the first, second, and third transistors by operating a controller.

A method of operating a reconfigurable quadrature coupler is disclosed. The method includes determining a first switchable impedance to provide a second port reflection coefficient by operating a coupled port transformer, which coupled port transformer is coupled to a second port having a coupled port transmission line connected to a first transistor; determining a second switchable impedance to provide a third port reflection coefficient by operating an isolation port transformer, which isolation port transformer is coupled to a third port having an isolation port transmission line connected to a second transistor; and determining a fourth switchable impedance to provide a fourth port reflection coefficient by operating a through port transformer, which through port transformer is coupled to a fourth port having a through port transmission line connected to a third transistor, and switching on or off selected ones of the first, second, and third transistors by operating a controller.

A single-signal receiver including an active inductor continuous time linear equalizer and a reference voltage selection equalizer is provided. The single-signal receiver includes a continuous time linear equalizing unit to receive a single signal, and compensate for distortion of the single signal to generate an output, and a reference voltage selection equalizing unit to select one of a first reference voltage value and a second reference voltage value based on a previous output from a comparator, and sample the output from the continuous time linear equalizing unit, based on the one of the first reference voltage value and the second reference voltage value.

A single-signal receiver including an active inductor continuous time linear equalizer and a reference voltage selection equalizer is provided. The single-signal receiver includes a continuous time linear equalizing unit to receive a single signal, and compensate for distortion of the single signal to generate an output, and a reference voltage selection equalizing unit to select one of a first reference voltage value and a second reference voltage value based on a previous output from a comparator, and sample the output from the continuous time linear equalizing unit, based on the one of the first reference voltage value and the second reference voltage value.

In an aspect, the present disclosure provides a superconducting circuit including: a ground plane including a superconducting member; a plurality of superconducting parts surrounded by a non-conductive part with space from the ground plane, each of the plurality of superconducting parts including four coupling ports each configured to enable the superconducting part to interact with another superconducting part; a superconducting quantum interference device configured to set a resonance frequency of a first superconducting part included in the plurality of superconducting parts; and a multilevel wiring line configured to form, in cooperation with the ground plane, a superconducting loop surrounding the superconducting quantum interference device, in which the superconducting quantum interference device is disposed, in an area inside the superconducting loop, at a place where a magnetic field generated by a current from a bias line for the first superconducting part is applied.

In an aspect, the present disclosure provides a superconducting circuit including: a ground plane including a superconducting member; a plurality of superconducting parts surrounded by a non-conductive part with space from the ground plane, each of the plurality of superconducting parts including four coupling ports each configured to enable the superconducting part to interact with another superconducting part; a superconducting quantum interference device configured to set a resonance frequency of a first superconducting part included in the plurality of superconducting parts; and a multilevel wiring line configured to form, in cooperation with the ground plane, a superconducting loop surrounding the superconducting quantum interference device, in which the superconducting quantum interference device is disposed, in an area inside the superconducting loop, at a place where a magnetic field generated by a current from a bias line for the first superconducting part is applied.

A corrosion protection device, system, and method are provided. The device may operate while being coupled to the object being protected and to a power source using a total of only two terminals. This may be accomplished by de-referencing the return path node of the circuit using a choke device that blocks a temporal AC component of an anti-corrosion signal. The choke device therefore diverts the anti-corrosion signal to a single negative/ground path to the object and then returns through a positive lead of the circuit. A two terminal corrosion protection device may thereby simplify the installation process, for example on a vehicle, by not requiring that another connection be made to the object at a spaced apart location from a first connection to the object.

A corrosion protection device, system, and method are provided. The device may operate while being coupled to the object being protected and to a power source using a total of only two terminals. This may be accomplished by de-referencing the return path node of the circuit using a choke device that blocks a temporal AC component of an anti-corrosion signal. The choke device therefore diverts the anti-corrosion signal to a single negative/ground path to the object and then returns through a positive lead of the circuit. A two terminal corrosion protection device may thereby simplify the installation process, for example on a vehicle, by not requiring that another connection be made to the object at a spaced apart location from a first connection to the object.