Updated license clarification and documents.

COPYING

-Copyright 2012 Mathis Rosenhauer, Moritz Hanke, Jörg Behrens
+Copyright 2012 
 
-Deutsches Klimarechenzentrum GmbH
-Bundesstr. 45a 
-D-20146 Hamburg
-Germany
+Mathis Rosenhauer, Moritz Hanke, Jörg Behrens             Luis Kornblueh
+
+Deutsches Klimarechenzentrum GmbH                         Max Planck Institute for Meteorology 
+Bundesstr. 45a                                            Bundesstr. 53
+D-20146 Hamburg                                           D-20146 Hamburg               
+Germany                                                   Germany
 
 All rights reserved.
 

README

-eszip - Earth System ZIP
+libae - Adaptive entropy encoding library
+----------------------------------------------------------------------------------------------
+Copyright 2012 
+
+Mathis Rosenhauer, Moritz Hanke, Jörg Behrens             Luis Kornblueh
+
+Deutsches Klimarechenzentrum GmbH                         Max Planck Institute for Meteorology 
+Bundesstr. 45a                                            Bundesstr. 53
+D-20146 Hamburg                                           D-20146 Hamburg               
+Germany                                                   Germany
+----------------------------------------------------------------------------------------------
+
+The implementation is based on:
+
+Lossless Data Compression. Recommendation for Space Data System
+Standards, CCSDS 121.0-B-2. Blue Book. Issue 2. Washington, D.C.:
+CCSDS, May 2012.
+
+A copy is made available, with some additional documents in the docs directory.
+Additional, in doc/license.txt a clarification on eventually applying intellectual
+property rights is given.
+
+----------------------------------------------------------------------------------------------
\ No newline at end of file

doc/license.txt

+-----------------------------------------------------------------------------------
+Lossless Data Compression,Recommended Standard, Issue 2, MAy 2012, CCSDS, 121.0-B-2
+-----------------------------------------------------------------------------------
+License Considerations, Section A3, page 37
+
+With respect to this issue we got the following information from the aforementioned
+NASA contact:
+
+From: Geurts, Bryan A. (GSFC-1401)
+Sent: Tuesday, April 21, 2009 12:14 PM
+To: Yeh, Pen-Shu (GSFC-5670)
+Subject: RE: Need help from you again
+
+Pen-Shu,
+
+The license agreement with ICs, LLC, for Patent Numbers US 5,448,642,
+US 5,687,255 and US 5,822,457, has been terminated effective March 31,
+2009. NASA has no other licensee of these patents. It is NASA's intent
+to not pay the remaining maintenance fees owing on these patents,
+thereby allowing them to eventually become abandoned, and to not
+enforce the patents.
+
+If you have any questions or concerns, please do not hesitate to contact me.
+
+Bryan A. Geurts
+Chief Patent Counsel
+NASA Goddard Space Flight Center
+Code 140.1, 8800 Greenbelt Road
+Greenbelt, MD 20771
+Phone:  (301) 286-7352
+Fax:  (301) 286-9502
+
+Reassuring this information in August 2012 because of the license
+considerations in the above referenced CCSDS standard:
+
+From: Geurts, Bryan A. (GSFC-1401)
+Sent: Friday, August 31, 2012 10:36 AM
+To: Luis Kornblueh
+Subject: RE: Patent 5448642
+
+Dear Mr. Kornblueh
+
+Per my email cited above, NASA has no interest in licensing or
+maintaining US Patent No. 5448642 and therefore has no objection to
+your use of its teachings and claims.  However, while NASA has
+effectively abandoned this patent, any use of the subject matter is at
+your own risk and NASA cannot warrant that its use will satisfy your
+particular needs or that your use will not infringe on another's
+intellectual property rights.
+
+-----------------------------------------------------------------------------------
+
+The cited CCSDS standard does not refer to any other intellectual property rights.
+
+-----------------------------------------------------------------------------------