User manual

ECE 477 Final Report Spring 2004
ordering system. The search for patents was quite difficult and time consuming because a
similar device was not found that could help narrow down a search.
D371,054 Coaster and Pager [4-4]
Figures portray a square coaster with an arrangement of LEDs inside its transparent
casing. Nothing is said about how the coaster is alerted to light up.
6,681,109 Server Call System [4-5]
This patent covers a system where each table has a keypad and they enter a code for what
they want and the information is transmitted to a central computer. The keypads contain an LED
that lights up when the order is confirmed. The central computer alerts servers, who carry
remote units for this purpose, when orders are made by their tables. Both table keypads and
server units contain transponders used to locate the units. This patent covers many features of
our system. It describes a central computer and remote units that communicate user input to the
central computer, wireless communication between central computer and remote devices, and a
need for a communication protocol. The crux of our project lies in the concept of a central
computer and remote units transmitting information back and forth.
6,208,976 Order Management and System with Auto Menu Updating [4-6]
This patent describes an ordering device that utilizes a menu layout almost exactly like
the layout designed for the project. It uses a hierarchical list with sub menus organized into a
tree. When the ordering device is started up, it queries a central computer to see if any changes
have been made to the menu, receiving any new information if changes have been made. The
patent describes using interfaces like touch screens and keypads. The perceived use of this
system is for drive-thrus at fast food establishments. The claims section specifically describes
the system as wired.
Analysis of Patent Liability
D371,054 Coaster and Pager [4-4]
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