Browse Prior Art Database

Wireless Point of Sale Terminal Input/Output Utilizing Radio Frequency Identification Communication and Solar or Battery Power

IP.com Disclosure Number: IPCOM000118526D
Original Publication Date: 1997-Mar-01
Included in the Prior Art Database: 2005-Apr-01
Document File: 2 page(s) / 48K

Publishing Venue

IBM

Related People

Cato, RT: AUTHOR

Abstract

Disclosed is a method for using Radio Frequency Identification (RFID) tag technology for communication between a Point of Sale (POS) terminal's logic unit and Input/Output (I/O) devices. Some I/O devices can be made to consume a small amount of power (keyboard, Liquid Crystal Display (LCD), and hand held scanner, for example) and can be solar or battery powered. Other I/O devices (printer, flat bed scanner, Cathode Ray Tube (CRT) display) are Alternate Current (AC) powered and could still benefit from the elimination of the communication cable.

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Wireless Point of Sale Terminal Input/Output Utilizing Radio Frequency
Identification Communication and Solar or Battery Power

      Disclosed is a method for using Radio Frequency Identification
(RFID) tag technology for communication between a Point of Sale (POS)
terminal's logic unit and Input/Output (I/O) devices.  Some I/O
devices can be made to consume a small amount of power (keyboard,
Liquid Crystal Display (LCD), and hand held scanner, for example) and
can be solar or battery powered.  Other I/O devices (printer, flat
bed scanner, Cathode Ray Tube (CRT) display) are Alternate Current
(AC) powered and could still benefit from the elimination of the
communication cable.

Use of Non-RF Powered RFID Tags in POS Terminal I/O Devices for
Communication

      Modification of Tags to Accept Power from Their "Host" I/O
Device:  RFID tags that are powered by their "host" I/O device will
have a significantly larger range than RFID tags powered by the RF
field generated by the RFID base station.  This range will enable
significant flexibility in the placement of the I/O devices relative
to the base station.

Enabling Tags to Communicate with Their "Host" I/O Device's Processor

      Increase RFID base station-to-RFID tag link data rate for Video
Graphics Adapter (VGA) display data:  This is possible because of the
strength of the RF signal from the RFID base station and the fact
that power for the tag is provided by the I/O device.  The speed of
the link in th...