The python-deltasigma project aims to provide a python package fully
compatible with Richard Schreier's MATLAB Delta Sigma Toolbox
(aka delsigma), a specialized Matlab(R) toolkit.

All original MATLAB code is Copyright (c) 2009, Richard Schreier.

The Python code here provided is a derivative work from the above toolkit
and subject to the same license terms.

This package contains some source code from pydsm, also based on the
same MATLAB toolbox. The pydsm package is copyright (c) 2012, Sergio Callegari.

When not otherwise specified, the source code is Copyright 2013,
Giuseppe Venturini and the python-deltasigma contributors.

The Python code here distribued is a derivative work from the MATLAB Delta
Sigma Toolbox and it is distributed under the same license terms.

MATLAB is a registered trademark of The MathWorks, Inc.

Original license follows.

----- 

Copyright (c) 2009, Richard Schreier
All rights reserved.

Redistribution and use in source and binary forms, with or without 
modification, are permitted provided that the following conditions are 
met:

    * Redistributions of source code must retain the above copyright 
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright 
      notice, this list of conditions and the following disclaimer in 
      the documentation and/or other materials provided with the distribution
      
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
POSSIBILITY OF SUCH DAMAGE.