Abstract: Aspects of the disclosure relate to cash handling devices that provide intelligent monitoring and management of cash cycles. A cash handling device having at least one processor, a communication interface, and memory may receive, from a mobile device, a request to process a pre-staged transaction. Subsequently, the cash handling device may generate and present a graphical identifier based on the mobile device requesting access to the cash handling device. Next, the cash handling device may verify that the mobile device is authorized to perform the pre-staged transaction based on the graphical identifier being scanned by the mobile device and cause a connection to be established between the cash handling device and the mobile device. Thereafter, the cash handling device may identify and process the pre-staged transaction associated with the mobile device. Then, the cash handling device may generate a notification indicating completed processing of the identified pre-staged transaction.

Abstract: Example embodiments involve a metrics collection system for collecting software usage metrics from one or more client devices at deployments. A computer, such as a server configured to execute the metrics collection system, collects software usage metrics (e.g., as a metrics submission from a client device) of the software product at the deployment, identifies a metrics type of the software usage metrics collected, assigns the software usage metrics to a metrics category, and calculates and updates a metrics score of the metrics category, based on the software usage metrics collected.

Abstract: Apparatus incorporating a water trap allows vent air to flow into a sewer system under low pressure differential conditions and allows gaseous emissions from the sewer system to exit the vent pipe only under greater differential pressure conditions.

Abstract: A buoyant liquid level indicator device is positioned within liquid drain apparatus having a trough accommodating liquid to form a liquid seal to prevent passage of gas through the liquid drain apparatus. The indicator device will float and be exposed to an outside observer only when a liquid seal is formed by the liquid drain apparatus.

Abstract: A tunable optical local oscillator is used for optical heterodyne signal detection using an electrooptic Mach-Zehnder modulator to produce a rapidly tunable optical signal from a tunable RF frequency generator. A combination of the Mach-Zehnder modulator and optical fibers for providing stimulated Brillouin scattering are used to suppress unwanted signals for providing a spectrally pure optical local oscillator waveform. Suppression of unwanted optical signals, up to 50 dB, generated by the Mach-Zehnder modulator is obtained, resulting in high spectral purity of the optical local oscillator waveform with an extended tuning range of the tunable optical oscillator equal to the operating bandwidth of up to 60 GHz of the Mach-Zehnder modulators.

Abstract: An optical fiber quadrature demodulator, for use in optical receivers, has an optical local oscillator for providing a coherent pilot tone that is mixed with an optical input signal to provide a piloted optical input signal. The pilot tone tracks phase shifts through the optical fibers for tracking the phase shift to the optical input signal as a phase shift reference in the demodulator providing coherent signal demodulation. The demodulator maintains optical phase coherence between the physically separated I and Q optical channels in the presence of unknown and time varying phase perturbations that occur in optical fibers used in photonic processing and communication systems.

Abstract: A tunable optical local oscillator is used for optical heterodyne signal detection using an electrooptic Mach-Zehnder modulator to produce a rapidly tunable optical signal from a tunable RF frequency generator. A combination of the Mach-Zehnder modulator and optical fibers for providing stimulated Brillouin scattering are used to suppress unwanted signals for providing a spectrally pure optical local oscillator waveform. Suppression of unwanted optical signals, up to 50 dB, generated by the Mach-Zehnder modulator is obtained, resulting in high spectral purity of the optical local oscillator waveform with an extended tuning range of the tunable optical oscillator equal to the operating bandwidth of up to 60 GHz of the Mach-Zehnder modulators.

Abstract: An optical fiber quadrature demodulator, for use in optical receivers, has an optical local oscillator for providing a coherent pilot tone that is mixed with an optical input signal to provide a piloted optical input signal. The pilot tone tracks phase shifts through the optical fibers for tracking the phase shift to the optical input signal as a phase shift reference in the demodulator providing coherent signal demodulation. The demodulator maintains optical phase coherence between the physically separated I and Q optical channels in the presence of unknown and time varying phase perturbations that occur in optical fibers used in photonic processing and communication systems.

Abstract: A tunable optical local oscillator is used for optical heterodyne signal detection using an electrooptic Mach-Zehnder modulator to produce a rapidly tunable optical signal from a tunable RF frequency generator. A combination of the Mach-Zehnder modulator and optical fibers for providing stimulated Brillouin scattering are used to suppress unwanted signals for providing a spectrally pure optical local oscillator waveform. Suppression of unwanted optical signals, up to 50 dB, generated by the Mach-Zehnder modulator is obtained, resulting in high spectral purity of the optical local oscillator waveform with an extended tuning range of the tunable optical oscillator equal to the operating bandwidth of up to 60 GHz of the Mach-Zehnder modulators.