Appeal No. 2000-0229
Application No. 08/603,005 Page 8
price label. In Poland, pricing information is displayed
according to the location determined by an electronic overlay
(col. 1, lines 9-11). When a store person presses overlay 14
onto a shelf display strip 24, tag computer 22 detects the
occurrence of overlay 14 being mounted on display strip 24 by
polling an aisle controller 26 at a frequent interval (col. 3,
lines 39-43). Tag computer 22 searches the product location
table in the memory to determine whether the store person mounted
overlay 14 in the proper location (col. 4, lines 27-30). In the
event tag controller 22 receives an invalid aisle number for a
newly mounted overlay 14, tag computer 22 sends an error
condition packet to aisle controller 26 indicating the aisle
number of the correct location. "In the event the aisle number
is correct but the shelf location is incorrect, aisle controller
26 sends buffers to display guiding hints comprised of arrow
annunciators and display segments arranged to form indications"
(col. 5, lines 6-18). If the new product location is incorrect,
the aisle controller leaves the price display blank at the
incorrect strip location and asserts the annunciator data to
guide the store person as to which direction to move overlay 14
(col. 2, lines 25-29).
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Last modified: November 3, 2007