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Pulse oximeters, a type of photoplethysmography (PPG) sensor, are electronic devices that measure a person’s blood-oxygen saturation (SpO 2) and heart-rate (HR) levels. Since their inception in the ...

Signal processing is a multidisciplinary field concerned with the analysis, transformation, and interpretation of signals—functions that convey information about physical phenomena. At its core, ...

How analog signal engineering is performed, in broad strokes. What are the component-selection considerations for new designs? What are VFAs and how are they used? Analog signal engineers specialize ...

Engineers at Caltech have developed a switch—one of the most fundamental components of computing—using optical, rather than electronic, components. The development could aid efforts to achieve ...

HAUPPAUGE, N.Y., July 15, 2025 (GLOBE NEWSWIRE) -- AmpliTech Group, Inc. (Nasdaq: AMPG, AMPGW), a designer, developer, and manufacturer of state-of-the-art signal processing components for satellite, ...