everyone (I'm new to the forum)

I've written a program to retreive data from a badge system via serial port.
The problem is that the data I receive is in some sort of code, I believe it is ANSI but I'm not sure.

Here's the input I get:

]À&DUÃ

Normally this code must contain at least the following (human readable):
28633 (this is the id of my badge)

Here's my code for input:

-------------------------------------------------------------------------
StringBuffer inputBuffer = new StringBuffer();
int newData = 0;

while (input.available() > 0)
{
newData = input.read();

if (newData == -1)
{
break;
}

if ('\r' == (char)newData)
{
inputBuffer.append('\n');
}

else
{
inputBuffer.append((char)newData);
}

System.out.println(new String(inputBuffer));

-------------------------------------------------------------------------

Does anyone know how I can handle this?

thx in advance