you can fingerprint the phones — if you can detect the IR from a long enough distance to be useful. And that brings us to IR photodetector amplifiers. The circuit is “almost” a simple op-amp ...

IN THE BOX: You will receive an In-Line telephone sound amplifier with a strobe light that amplifies ringer volume from the corded telephone for the hearing-impaired to recognize the call!

While the Tele-Phonographers won’t make your iPhone sound like a high quality tube amp, they do undoubtedly increase the phone’s volume and they are nice to look at. We can certainly get ...

and the realization of full systems including power amplifiers, linearization techniques, beamforming transceivers, access points, and radar detection. In today’s connected world, the demand for ...

Abstract: This article proposes a full-duplex (FD) receiver (Rx) with highly isolated antennas and highly linear low-noise amplifier (LNA) for mobile phased array systems. The shared-aperture antennas ...