Method and apparatus for controlling communications

  • US 7,302,683 B2
  • Filed: 08/22/2005
  • Issued: 11/27/2007
  • Est. Priority Date: 03/14/1997
  • Status: Expired due to Fees
First Claim
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1. A communications device which is arranged to process messages for communications, comprising a virtual machine means which includes:

  • a virtual function processor and function processor instructions for controlling operation of the device, andmessage instruction means including a set of descriptions of message data;

    a virtual message processor, which is arranged to be called by the function processor and which is arranged to carry out the message handling tasks of assembling the messages, disassembling messages and comparing the messages under the direction of the message instruction means that is arranged to provide directions for operation of the virtual message processor, whereby when a message is required to be handled by the communications device the message processor is called to carry out the message handling task,wherein the virtual machine means is emulatable in different computers having incompatible hardwares or operating systems,wherein said device is a payment terminal device and wherein said virtual message processor is used to communicate with peripheral units associated with said device.

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