Electronic devices for detecting and locating objects within a certain distance using proximity sensors.; Proximity sensors; Wearable electronic proximity sensors with embedded contact tracing software for distance measuring and alerting of distances among wearers

'alert':30 'among':33 'certain':10 'contact':23 'detect':4 'devic':2 'distanc':11,27,32 'electron':1,18 'embed':22 'locat':6 'measur':28 'object':7 'proxim':13,15,19 'sensor':14,16,20 'softwar':25 'trace':24 'use':12 'wearabl':17 'wearer':34 'within':8

C4U

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