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Controlling communication between a point of sale terminal and a printer without changing an application on the point of sale terminal

  • US 9,047,209 B2
  • Filed: 07/09/2014
  • Issued: 06/02/2015
  • Est. Priority Date: 07/18/2013
  • Status: Active Grant
First Claim
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1. A communication control method that executes a communication control process in a computer that operates according to an operating system on an OS kernel layer, has an application on an application layer that outputs a first unit of command data causing a connected electronic device to perform an operation, and has a communication port on a physical layer that sends data output from the application to the electronic device, the communication control method comprising:

  • receiving data output from the application on the OS kernel layer before the data is received by the communication port;

    accumulating the received data and generating a second unit of data that is larger than the first unit;

    outputting the generated second unit of data to the communication port;

    sending a signal to stop data output to the application after the data generating step; and

    sending a signal to resume data output to the application after the data output in the output step is sent to the electronic device.

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