Communications: electrical – Continuously variable indicating – With meter reading
Patent
1994-02-22
1995-11-07
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
235383, 34082515, G06F 1516, G09G 300
Patent
active
054650852
ABSTRACT:
A system for electronically displaying item data available in updatable form from a computer, such as item prices, for purchaser viewing. The system provides an infrared encoded signal containing item data applicable to an item on a shelf associated with an electronic display unit. The electronic display unit receives, decodes and displays the data relating to the item. The display units include a display for displaying the data; a photovoltaic cell for providing all necessary power without need for any other external or internal power source; a controller; and a non-volatile, semiconductor memory powered by the photovoltaic cell for retaining the data even in the absence of light energy being applied to the photovoltaic cell. Upon receiving the encoded signal, the display unit determines that the infrared encoded signal is intended for it, and if so, it prepares and displays the data.
REFERENCES:
patent: 4002886 (1977-01-01), Sundelin
patent: 4139149 (1979-02-01), Crepeau et al.
patent: 4438432 (1984-03-01), Hercum
patent: 4500880 (1985-02-01), Gomersall et al.
patent: 4521677 (1985-06-01), Sarwin
patent: 4654514 (1987-03-01), Watson et al.
patent: 4766295 (1988-08-01), Davis et al.
patent: 4879756 (1989-11-01), Stevens et al.
patent: 4888709 (1989-12-01), Revesz et al.
patent: 4937586 (1990-06-01), Stevens et al.
patent: 5019811 (1991-05-01), Olson et al.
patent: 5089813 (1992-02-01), De Luca et al.
patent: 5111196 (1992-05-01), Hunt
patent: 5198644 (1993-03-01), Pfeiffer et al.
patent: 5202923 (1993-04-01), Kuriyama
Blankenstein Hendrik
Caldwell Michael W.
Borovoy Roger S.
Display Network, Inc.
Merz Edward
Yusko Donald J.
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