Multifunctional electronic devices for use in receiving, displaying, measuring, and communicating information concerning the playing of racket sports, namely, the occurrence of shots as well as speed, spin, direction and other information about the shots, and for providing coaching through audible, visual, and haptic feedback

'audibl':41 'coach':39 'communic':11 'concern':13 'devic':3 'direct':29 'display':8 'electron':2 'feedback':45 'haptic':44 'inform':12,32 'measur':9 'multifunct':1 'name':19 'occurr':21 'play':15 'provid':38 'racket':17 'receiv':7 'shot':23,35 'speed':27 'spin':28 'sport':18 'use':5 'visual':42 'well':25

RACKET COACH

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