Abstract: The present invention provides methods and systems of using wavelet transform in a dual-track architecture to process ECG signals of patients and reference ECG signals of previously studied subjects to assess the cardiovascular health of the patients. The dual-track architecture refers to running wavelet transform on the ECG signals of the patients and the reference ECG signals to extract and analyze 2-dimensional time-domain signal characteristics of the ECG signals, and to build and analyze a 3-dimensional model of frequency-domain and time-domain information of the ECG signals. The characteristics of the ECG signals of the patients and the reference ECG signals may be compared and used to identify a cardiovascular disease of the patient or to recommend follow-up tests. The results of the comparison may also be used to configure the ECG device used to acquire the ECG signals of the patient and/or to optimize the parameters of the 2-D/3-D analysis.

Abstract: Systems and methods are provided for managing the batteries and the power source as a single combined output to power the load, allowing the system to use power source with reduced maximum power output, reducing system cost and complexity. Furthermore, the switch matrix controller efficiently and dynamically manages the internal power transfer to minimize the charging/discharging cycle of the batteries while ensuring that the power source and the batteries meet changing load power demand. Finally, maximizing charging time and having independent control of each battery increase power efficiency, prolong the operational life of the battery, and increase overall system life.

Abstract: A computer, such as a portable computer, can include a removable interface module. The module can contain a device having a computer interface. The device can be a radio or a fiber optic communications device, for example. The use of such a module can facilitate repair and reconfiguration of the portable computer in the field. Such computers can be used by military personnel, police, emergency medical personnel, fire fighters, and the like.

Abstract: A computer, such as a portable computer, can include a removable interface module. The module can contain a device having a computer interface. The device can be a radio or a fiber optic communications device, for example. The use of such a module can facilitate repair and reconfiguration of the portable computer in the field. Such computers can be used by military personnel, police, emergency medical personnel, fire fighters, and the like.

Abstract: Systems and methods are disclosed for improving power efficiency in battery-charging DC power control systems when a power source input voltage is fluctuating. Power is received from the power sources in the form of AC or DC electrical energy and is controlled and regulated by the DC power control systems into DC voltages for charging batteries and/or for driving output loads. Input voltage from the power sources may fluctuate and may drop below a voltage level required to charge the batteries, resulting in a loss in power conversion efficiency. Embodiments of the present disclosure detect low input voltage, boost the low input voltage to a sufficient voltage level for charging the batteries, and manage the distribution of the battery power and input power to the loads to increase power efficiency while meeting load power demands.