Abstract: In a linear electric generator (LEG) which includes apparatus for passing a permanent magnetic assembly (PMA) along linearly disposed sections of coils of an induction coil assembly (ICA) for generating voltages and power, a switching arrangement for coupling only selected sections of coils of the ICA across the power output lines of the LEG. The selected coil sections include the sections of coils of the ICA in close proximity to the passing PMA. In accordance with different embodiments, the non selected coils of the ICA may be either short circuited or disconnected (open circuited) from the power output lines.

Abstract: A method of provisioning a secured storage device for use with a trusted host platform enables the trusted host platform to access both a first secured network operating in a first security domain and a second secured network operating in a second security domain without exposing the first and second security domains to one another. An enrollment agent provides access to a certificate authority associated with the first security domain to obtain authentication and authorization materials for a user authorized to access the first secured network. Likewise, an enrollment agent provides access to a certificate authority associated with the second security domain to obtain authentication and authorization materials for the user when the user is authorized to access the second secured network.

Abstract: The invention provides methods and apparatus, including computer program products, implementing and using techniques for providing access from a trusted host platform to a first secured network operating on a first security domain and a second secured network operating on a second security domain. In some embodiments, a first virtual machine associated with the first secured network is instantiated on the trusted host platform. A second virtual machine associated with the second secured network is also instantiated on the trusted host platform. A first connection is established between the first virtual machine on the trusted host platform and the first secured network using at least a first virtual secure storage device. A second connection also established between the second virtual machine on the trusted host platform and the second secured network using at least a second virtual secure storage device.

Abstract: In a linear electric generator (LEG) which includes apparatus for passing a permanent magnetic assembly (PMA) along linearly disposed sections of coils of an induction coil assembly (ICA) for generating voltages and power, a switching arrangement for coupling only selected sections of coils of the ICA across the power output lines of the LEG. The selected coil sections include the sections of coils of the ICA in close proximity to the passing PMA. In accordance with different embodiments, the non selected coils of the ICA may be either short circuited or disconnected (open circuited) from the power output lines.

Abstract: A wave energy converter (WEC) including an electric generator for capturing energy contained in ocean waves and converting it to electrical energy at the output of the electric generator may be characterized as an effective capacitive (or inductive) element. Systems embodying the invention include an inductive (or capacitive) element inserted in the circuit between the output of the electric generator and a load in order to achieve resonance with the effective capacitance (inductance) of the WEC and so as to increase the efficiency of the power transfer to the load. In certain embodiments the load coupled to the system has an optimum value which is made a function of the frequency of the ocean waves and the effective capacitance (or inductance). The effective capacitance (inductance) of the converter varies as a function of the frequency of the ocean waves.

Abstract: A transducer operated as power generating device is driven at a low frequency and collects energy at the low frequency rate. The collected energy is extracted at a much higher frequency. Extracting the energy at a higher frequency enables the use of components, such as inductors, having reasonable values and sizes. In one embodiment, a power extracting circuit which includes elements designed to resonate with the transducer at a higher frequency than the frequency at which the transducer is being driven is periodically switched in circuit with the transducer. Thus, the electric power generator device operated and controlled by a slowly changing source of energy (e.g., ocean waves, wind, eddies of water) may develop energy at one frequency and may be operated to transfer the energy at another frequency.

Abstract: A transducer operated as power generating device is driven at a low frequency and collects energy at the low frequency rate. The collected energy is extracted at a much higher frequency. Extracting the energy at a higher frequency enables the use of components, such as inductors, having reasonable values and sizes. In one embodiment, a power extracting circuit which includes elements designed to resonate with the transducer at a higher frequency than the frequency at which the transducer is being driven is periodically switched in circuit with the transducer. Thus, the electric power generator device operated and controlled by a slowly changing source of energy (e.g., ocean waves, wind, eddies of water) may develop energy at one frequency and may be operated to transfer the energy at another frequency.

Abstract: A wave energy converter (WEC) including an electric generator for capturing energy contained in ocean waves and converting it to electrical energy at the output of the electric generator may be characterized as an effective capacitive (or inductive) element. Systems embodying the invention include an inductive (or capacitive) element inserted in the circuit between the output of the electric generator and a load in order to achieve resonance with the effective capacitance (inductance) of the WEC and so as to increase the efficiency of the power transfer to the load. In certain embodiments the load coupled to the system has an optimum value which is made a function of the frequency of the ocean waves and the effective capacitance (or inductance). The effective capacitance (inductance) of the converter varies as a function of the frequency of the ocean waves.

Abstract: Energy from a naturally recurring source of variable mechanical energy is captured and transmitted to an electrical generator causing it to rotate at speeds proportional to the amount of energy captured. The output voltage produced by the generator is a function of the rotational speed imparted to the generator and a load impedance which is coupled via controllable switching circuitry to the generator output. The effective load impedance is varied and controlled by means of a control mechanism responsive to the rotational speed of the generator and the output voltage of the generator which selectively turns the controllable switching circuitry on and off.

Abstract: The electric energy generated by a piezoelectric device (PEG), when mechanically stressed, is transferred from the PEG to a storage element (e.g., a capacitor or a battery) by selectively coupling an inductor in the conduction path between the PEG and the storage element. In one embodiment, the transfer of energy is optimized by allowing the amplitude of the electric signal to reach a peak value before transferring the electrical energy via an inductive network to a capacitor or a battery for storage. Electrically, the PEG is operated without a significant loading (e.g., essentially open circuited) when the amplitude of the voltage generated by the PEG is increasing. When the amplitude of the voltage has peaked, or reached a predetermined value, the electrical energy generated by the PEG is coupled to an inductive-capacitive network for absorbing and storing the energy produced by the PEG.