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A chipset, including one master chip and six same slave chips, is designed and implemented for the endoscopic Micro-Ball, which has six cameras to minimize the blind area while examining the human gastrointestinal (GI) tract. For lowering power consumption, a multi-level clock management for the whole chipset is implemented. A power and area efficient 4 × 4 JPEG image compressor with high image quality...
This paper proposes an omnidirectional wireless power receiving IC for implanted biomedical applications. The IC consists of new power receiving circuits (switch-mode CMOS Rectifier) and new power combination circuits (Skipping Booster). By predicting the coming of the current zero-cross-point (ZCP), the proposed CMOS rectifier switches current with more precise timing. By skipping the rectification...
The wireless endoscopic Micro-Ball is used to capture images of gastrointestinal (GI) tracts and save them into Flash memories. The batteries will be exhausted after the Micro-Ball is excreted from human body. So a new wireless power transmission (WPT) solution is proposed to deliver energy from an image reader to the Micro-Ball to fetch the stored images. In this solution, considering that the posture...
This paper proposes a new Wireless-Powered Micro-Ball Endoscopy system, in which wireless power is emitted from an emitter array embedded in a floor and resonantly relayed by a passive wireless power jacket on patients. Comparing to other wireless powering endoscopy systems, both the patients' freedom of movement and the power efficiency are improved. To enhance the power efficiency, an End-Fire Helix...
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