The first patent announced on 30.08.1999 you can find here:
http://www.patents.ibm.com/details?pn=US05935230__
If you like have a look at a lot of other patents from AMIGA:
http://www.patents.ibm.com/details?pn=WO09935849A1
http://www.patents.ibm.com/details?pn=WO09935848A1
http://www.patents.ibm.com/details?pn=WO09935845A1
http://www.patents.ibm.com/details?pn=WO09935844A1
http://www.patents.ibm.com/details?pn=WO09935843A1
http://www.patents.ibm.com/details?pn=WO09935842A1
http://www.patents.ibm.com/details?pn=WO09935841A1
http://www.patents.ibm.com/details?pn=WO09935833A1
http://www.patents.ibm.com/details?pn=WO09935832A1
http://www.patents.ibm.com/details?pn=WO09935829A1
http://www.patents.ibm.com/details?pn=WO09935828A1
http://www.patents.ibm.com/details?pn=WO09935823A1
http://www.patents.ibm.com/details?pn=WO09935822A1
http://www.patents.ibm.com/details?pn=WO09935584A2
http://www.patents.ibm.com/details?pn=WO09935569A1
http://www.patents.ibm.com/details?pn=WO09935561A1
http://www.patents.ibm.com/details?pn=WO09935560A1
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