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Data transfer device, transaction system and method for exchanging control and I/O data with a data processing system

  • US 20020091889A1
  • Filed: 12/18/2001
  • Published: 07/11/2002
  • Est. Priority Date: 12/19/2000
  • Status: Active Grant
First Claim
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1. A data transfer device, having first data interface means for exchanging data with a data processing system, second data interface means for exchanging data with a user of said data transfer device, and control means for controlling data transfer between said first and second data interface means wherein said control means are configured for receiving control data from said first data interface means for selectively enabling data exchange between said first and second data interface means.

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