Abstract: The present disclosure relates to a system and a method for enabling blockchain based transaction authorization. The system includes an authenticating device to receive a request for transaction authorization from a terminal device, where the request includes a plurality of credentials pertaining to transaction information, The authenticating device autonomously generates a first component and a second component of a digital signature, based on the plurality of credentials. The authenticating device encapsulates the second component into one or more discretionary data fields of a data object. The authenticating device generates a digital signature by combining the first component and the encapsulated second component. The authenticating device authorizes and transmits the digital signature to the terminal device to determine a status of a transaction, and receives the status of the transaction from the terminal device.

Abstract: An inverter controller configured to control an inverter includes a microprocessor that is configured to measure or estimate a temperature of a first phase and to measure or estimate a temperature of a second phase; determine whether the temperature of the first phase is greater than the second phase; and select a switch in the inverter to clamp based on the determination.

Abstract: A method of operating a power inverter for an electric machine includes selecting an inverter switching technique; determining a frequency range for inverter switching; determining a direct current (DC) voltage range for inverter switching; determining an optimal switching map including an inverter switching technique and frequency selection for each value of torque-speed on a torque-speed curve; and controlling switches included in the power inverter using the optimal switching map.

Abstract: A method of operating a power inverter for an electric machine includes selecting an inverter switching technique; determining a frequency range for inverter switching; determining a direct current (DC) voltage range for inverter switching; determining an optimal switching map including an inverter switching technique and frequency selection for each value of torque-speed on a torque-speed curve; and controlling switches included in the power inverter using the optimal switching map.

Abstract: According to some aspects of this disclosure a radio frequency signal coupler is provided. The radio frequency coupler includes an input port, an output port, a main transmission line extending between the input port and the output port, a coupled transmission line electromagnetically coupled to the main transmission line, at least one coupled port coupled to the coupled transmission line, and a plurality of termination ports connected to the coupled transmission line, each termination port of the plurality of termination ports being connected to the coupled transmission line at a different location to provide a plurality of coupling factors corresponding to a plurality of signal frequencies.

Abstract: According to some aspects of this disclosure a radio frequency signal coupler is provided. The radio frequency coupler includes an input port, an output port, a main transmission line extending between the input port and the output port, a coupled transmission line electromagnetically coupled to the main transmission line, at least one coupled port coupled to the coupled transmission line, and a plurality of termination ports connected to the coupled transmission line, each termination port of the plurality of termination ports being connected to the coupled transmission line at a different location to provide a plurality of coupling factors corresponding to a plurality of signal frequencies.

Abstract: Examples of the disclosure include a coupler comprising an input port, an output port, a coupled port, an isolated port, a main line coupled between the input port and the output port, a coupled line coupled between the coupled port and isolated port, and one or more elements switchably coupled between the coupled port and the isolated port, the one or more elements including at least one of an inductive, capacitive, or resistive element.

Abstract: Examples of the disclosure include a coupler comprising an input port, an output port, a coupled port, an isolated port, a main line coupled between the input port and the output port, a coupled line coupled between the coupled port and the isolated port, and at least one capacitive element switchably coupled between at least one of the input port or the main line and at least one of the coupled port or the coupled line.

Abstract: A system and method for scalable, adaptive, real-time generation of personalized offers is disclosed. A profile of a user is generated, the profile being a summarized representation of historical behavior of the user, the profile containing recursively updated variables. The profile is updated for each new transaction and/or a time dependent event, the new transaction and/or time dependent event including purchase transaction data, user, item hierarchy, and offer data. A affinity scores is generated for the user based on the updated profile, and for each new transaction, one or more offers are generated for the user based on the updated user profile and the affinity scores.

Abstract: A system and method for scalable, adaptive, real-time generation of personalized offers is disclosed. A profile of a user is generated, the profile being a summarized representation of historical behavior of the user, the profile containing recursively updated variables. The profile is updated for each new transaction and/or a time dependent event, the new transaction and/or time dependent event including purchase transaction data, user, item hierarchy, and offer data. A affinity scores is generated for the user based on the updated profile, and for each new transaction, one or more offers are generated for the user based on the updated user profile and the affinity scores.