Third-Party Copyright Notices

Duxbury Use of Third-Party Proprietary Software

Duxbury Systems makes some use of third-party software that is not Open Source (a term explained in the next section). This category of proprietary software is included with permission of the copyright owner, and we acknowledge that copyright.

In the Windows version, certain Duxbury applications, including DBT, PerkyDuck, and BERT, use a third-party dynamic library to maintain communications with the eBrailler Cosmo device.

ftd2xx.dll
Copyright © 2001-2012 FTDI Ltd.

Duxbury Use of Open Source Software

Open Source software often provides useful tools and functions that advance the state of the art for all software developers as well as software users. Generally speaking, Open Source software is available on the Internet in source code form, where any developer or user can obtain it and compile it into new works subject to the restrictions of the original authors and contributors. Several Duxbury products include Open Source software from a third party.

The compiled, binary form of such software is often referred to as a library, package, or component. In many cases, the compiled forms of Open Source software are likewise available for copying and re-use, and once again this use is subject to the restrictions imposed by the original authors and contributors. To redistribute any such component, one must include the copyright statement and terms of use that accompany that component.

Most Duxbury products on the Windows and MacOS platforms use the wxWidgets Cross-Platform GUI Libraries to implement the user interface and provide a number of low-level functions. The wxWidgets libraries have a number of authors and contributors.

wxExpat (XML Parsing) Library
For copyright information, see wxExpat Library.
wxRegEx (Regular Expressions) Library
For copyright information, see wxRegEx Library
wxTIFF (Tagged Image File Format) Library
For copyright information, see wxTIFF Library.
wxPng (Portable Network Graphics) Library
This software is based in part on the work of the Independent JPEG Group.
wxWidgets (other libraries)
For copyright and license terms, see wxWidgets Library.
See also the external link, https://www.wxwidgets.org, for more information on wxWidgets.

All other third-party open source software used in Duxbury products is listed below and in the related subtopics. Note that components shipped with a Duxbury product and not listed below should be understood to be subject to the copying restrictions outlined in the Duxbury End-User License Agreement (EULA).

The lists below do not include information about Open Source software that may be included in the operating system software on which the Duxbury applications run. The manufacturer of the operating system should post information about its use of Open Source software.

Open Source Components by Duxbury Product

Apart from wxWidgets, Open Source software components included with each Duxbury product appear in the lists below.

DBT (Duxbury Braille Translator)

DBT includes these Open Source components on the Windows platform. They are used to support importing various document file formats.

libxml2.dll
For copyright and restrictions, see Licence for libxml2 and Supplemental Licence for libxml2.
libxslt.dll
For copyright and restrictions, see Licence for libxslt.
libexslt.dll
For copyright and restrictions, see Licence for libexslt.

DBT for the macOS uses three dynamic libraries to maintain communications with eBrailler Cosmo devices.

libftdi.dylib
For copyright and restrictions, see License for libftdi.
libusb-0.1.4.dylib
For copyright and restrictions, see License for libusb-compat.
libusb-1.0.0.dylib
For copyright and restrictions, see License for libusb.

NimPro

NimPro includes two data files that are used to interpret the symbols that may appear in DAISY/NIMAS input documents that include MathML.

mathml2.ent
© International Organization for Standardization 1991
See comments within mathml2.ent for license terms and further information.

Perky Duck

PerkyDuck on macOS uses three dynamic libraries to maintain communications with eBrailler Cosmo devices.

libftdi.dylib
For copyright and restrictions, see License for libftdi.
libusb-0.1.4.dylib
For copyright and restrictions, see License for libusb-compat.
libusb-1.0.0.dylib
For copyright and restrictions, see License for libusb.

BERT (Braille Education Remote Training)

BERT on macOS uses three dynamic libraries to maintain communications with eBrailler Cosmo devices.

libftdi.dylib
For copyright and restrictions, see License for libftdi.
libusb-0.1.4.dylib
For copyright and restrictions, see License for libusb-compat.
libusb-1.0.0.dylib
For copyright and restrictions, see License for libusb.

QuickTac

QuickTac for macOS includes additional copyrighted Open Source software to implement curve drawing.