Abstract: Embodiments can provide a visual indicator system, attachable to a medical imaging patient bed. The visual indicator system comprising: one or more light strips, each light strip comprising a plurality of lights; a distance meter, attachable to one end of the medical imaging patient bed; a storage device, configured to store one or more preconfigured finger gestures; and a microcontroller. The one or more light strips are attachable to the medical imaging patient bed; wherein the microcontroller is configured to illuminate the one or more light strips after the one or more preconfigured finger gestures are made with respect to the one or more light strips. A position of the illumination of the light strip corresponds to a position of performing the one or more preconfigured finger gestures and one or more distance measurements received from the distance meter.

Abstract: Embodiments can provide a visual indicator system, attachable to a medical imaging patient bed. The visual indicator system comprising: one or more light strips, each light strip comprising a plurality of lights; a distance meter, attachable to one end of the medical imaging patient bed; a storage device, configured to store one or more preconfigured finger gestures; and a microcontroller. The one or more light strips are attachable to the medical imaging patient bed; wherein the microcontroller is configured to illuminate the one or more light strips after the one or more preconfigured finger gestures are made with respect to the one or more light strips. A position of the illumination of the light strip corresponds to a position of performing the one or more preconfigured finger gestures and one or more distance measurements received from the distance meter.

Abstract: In some implementations, a distributed, trustless transaction network can be used to improve scalability of electronic transaction systems. The structure of the transaction network enables a transaction system to achieve high transaction throughout and low confirmation latency. In some instances, each account on the network has an individual chain that is tracks its transactions and allows independent transactions to be processed in parallel. A main settlement chain can provide universal synchronization of nodes as well as dynamic validator sets. Transactions can be validated and approved by a small number of delegates elected via a representative system, which reduces redundant operations while preserving safety. Consensus can be achieved using a delegated PBFT-based algorithm that is optimized for speed. Techniques described herein can be used to provide both accountable safety and plausible liveness through slashing conditions and other game theoretic incentives.