Improving medical imaging with direct radiography Design How-To 9/10/2012 3 comments Traditional analog X-ray imaging systems is being replaced by Direct Radiography. The DR X-ray image is available within seconds after exposure of the patient and can be distributed immediately for consultation with medical experts anywhere. This article focuses on design challenges with respect to digital X-ray flat panel detectors.
Infrared LEDs for camera systems Design How-To 9/7/2012 1 comment This article explains that powerful infrared LEDs, or IRED, facilitate compact illumination units for video and CCTV systems on infrared basis. They reduce the cost for packages, optics, reflectors and production.
Energy harvesting from thermoelectric sources gets a boost Product How-To 9/4/2012 6 comments Powering a wireless sensor node from ambient or “free” energy is attractive because it can supplement or eliminate the need for batteries or wires. This is a clear benefit when battery replacement or servicing is inconvenient, costly or dangerous.
As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.
January 2016 Cartoon Caption ContestBob's punishment for missing his deadline was to be tied to his chair tantalizingly close to a disconnected cable, with one hand superglued to his desk and another to his chin, while the pages from his wall calendar were slowly torn away.122 comments