SOGI based apparatus and methods for providing balanced three phase output signals free of harmonics, DC components and imbalance present in the input signals, are disclosed. In addition, such apparatus and methods for providing corresponding output signals which are drift-free integrals of the input signals and which signals may enable the control of a power electronics inverter for improved and robust grid power injection and for motor control are disclosed.

Systems and methods may be used to measure a frequency of a power delivery system and/or of a supply signal transmitted to a load. A system may record an input waveform, determine a frequency of the input waveform at a present time based at least in part on the input waveform and a derivative of the input waveform, and control an operation of a power delivery system based at least in part on the determined frequency.

Systems and methods may be used to measure a frequency of a power delivery system and/or of a supply signal transmitted to a load. A system may record an input waveform, determine a frequency of the input waveform at a present time based at least in part on the input waveform and a derivative of the input waveform, and control an operation of a power delivery system based at least in part on the determined frequency.

Embodiments that translate a sensor measurement to a frequency characteristic are disclosed. The frequency characteristic can be wirelessly detected by a reader device. The detected frequency characteristic can be used to determine the corresponding sensor measurement. Devices utilizing this approach can be characterized or calibrated to increase accuracy. Systems and methods utilizing the approaches are also described.

Embodiments that translate a sensor measurement to a frequency characteristic are disclosed. The frequency characteristic can be wirelessly detected by a reader device. The detected frequency characteristic can be used to determine the corresponding sensor measurement. Devices utilizing this approach can be characterized or calibrated to increase accuracy. Systems and methods utilizing the approaches are also described.

Disclosed are systems and methods for measuring vibrational spectra of a living cells and tissue that includes a low noise consistent optical source creating a photon beam, a support device, a photon-to-electron converter/detector outputting a streamed analog electrical signal, an analog-to-digital converter, and a digital signal processor with specialized software for measuring and characterizing the signal contained in the photon beam and its subsequent detector's streamed analog converted to digital signal. Motion of the living sample causes modulation to the photon beam as it passes through the living samples by how much of the photon beam is blocked, absorbed or deflected. In addition, specific sub-cellular vibrational features can be segregated utilizing fluorescent markers.

Disclosed are systems and methods for measuring vibrational spectra of a living cells and tissue that includes a low noise consistent optical source creating a photon beam, a support device, a photon-to-electron converter/detector outputting a streamed analog electrical signal, an analog-to-digital converter, and a digital signal processor with specialized software for measuring and characterizing the signal contained in the photon beam and its subsequent detector's streamed analog converted to digital signal. Motion of the living sample causes modulation to the photon beam as it passes through the living samples by how much of the photon beam is blocked, absorbed or deflected. In addition, specific sub-cellular vibrational features can be segregated utilizing fluorescent markers.

A technique is described for metering signals transmitted from a variety of frequency bands. As an example, receiving, at the software-defined multiband power meter, a first selection of a first modulation scheme corresponding to a first frequency range, configuring the software-defined multiband power meter to accept detection of a first set of one or more signals within the first frequency range, wherein the software-defined multiband power meter is configured to isolate the first set of one or more signals of the first frequency range, detecting the first set of one or more signals within the first frequency range, measuring a first signal quality of the first set of one or more signals, and transmitting one or more data packets identifying at least one signal quality measurement of the first set of one or more signals.

A technique is described for metering signals transmitted from a variety of frequency bands. As an example, receiving, at the software-defined multiband power meter, a first selection of a first modulation scheme corresponding to a first frequency range, configuring the software-defined multiband power meter to accept detection of a first set of one or more signals within the first frequency range, wherein the software-defined multiband power meter is configured to isolate the first set of one or more signals of the first frequency range, detecting the first set of one or more signals within the first frequency range, measuring a first signal quality of the first set of one or more signals, and transmitting one or more data packets identifying at least one signal quality measurement of the first set of one or more signals.

An apparatus comprising a frequency monitor circuitry to receive a first clock signal, a second clock signal and an expected frequency ratio, determine whether a ratio between the first clock signal and the second clock signal matches an expected an expected frequency ratio and generate an error signal upon a determination that the ratio between the first clock signal and the second clock signal does not match the expected frequency ratio.