Patent ID: 6340958
Filing Date: 2002-01-22
Classification: G06F,G09G,H04B

Abstract:
A system for displaying product information, comprising:a controller; a ceiling node having IR transmitter and an RF receiver; a first bus coupling said controller and said ceiling node for carrying messages between said controller and said ceiling node; an end cap having IR receiver and RF transmitter, said end cap being mounted to a display shelf or gondola; an individually addressable display module; a rail for mounting said end cap and said individually addressable display module; a second bus for carrying messages between said end cap and said individually addressable display module; a third bus for carrying power, said individually addressable display module coupled to said third bus; wherein said IR transmitter consumes more power than said IR receiver when said IR transmitter and IR receiver are operative, and said RF receiver consumes more power than said RF transmitter when said RF transmitter and RF receiver are operative.