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Power and data interface for peripheral devices

  • US 5,514,859 A
  • Filed: 04/14/1995
  • Issued: 05/07/1996
  • Est. Priority Date: 10/03/1990
  • Status: Expired due to Fees
First Claim
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1. An interface, for coupling the serial port of a computer to a bar code scanner that requires energy, said interface comprising:

  • power transmission means for transferring substantially all of the energy required by the bar code scanner from the serial port to the bar code scanner; and

    data transmission means for transferring unformatted pulse data between the bar code scanner and the serial port for processing by the computer.

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