Registers – Systems controlled by data bearing records – Credit or identification card systems
Patent
1992-07-16
1994-08-02
Ritts, Harold
Registers
Systems controlled by data bearing records
Credit or identification card systems
235375, 235381, G06K 500
Patent
active
053348214
ABSTRACT:
A point of sale terminal is disclosed that provides all of the usual point of sale terminal functions, but that is entirely field portable. Data pertinent to each purchase can be input to the terminal via a keyboard assembly, a touch-screen display or a signature-capture screen assembly, or via an antenna and radio link from an associated bar code scanner. Data may be communicated at any time to a remote host computer, also via a separate antenna and radio link. The communication links with the host computer and the bar code scanner operate independently and simultaneously, using mutually compatible modulation schemes such as a spread spectrum scheme for the host computer link and a narrowband or spread spectrum scheme for the bar code scanner link. The terminal thereby functions as a portable repeater or node in a data communications network.
REFERENCES:
patent: 4947028 (1990-08-01), Gorog
patent: 5189287 (1993-02-01), Parienti
Anderson Fred J.
Campo James A.
Embree Donald M.
Hofstetter Charles J.
Sloan Donald I.
Ritts Harold
Telxon Corporation
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