Copyrights and Legal Notices

The authors make NO WARRANTY or representation, either express or implied, with respect to this software, its quality, accuracy, merchantability, or fitness for a particular purpose. This software is provided "AS IS", and you, its user, assume the entire risk as to its quality and accuracy.

This software is copyright (C) 1991-2010, Thomas G. Lane, Guido Vollbeding. All Rights Reserved except as specified below.

Permission is hereby granted to use, copy, modify, and distribute this software (or portions thereof) for any purpose, without fee, subject to these conditions:

1.If any part of the source code for this software is distributed, then this README file must be included, with this copyright and no-warranty notice unaltered; and any additions, deletions, or changes to the original files must be clearly indicated in accompanying documentation.

2.If only executable code is distributed, then the accompanying documentation must state that "this software is based in part on the work of the Independent JPEG Group".

3.Permission for use of this software is granted only if the user accepts full responsibility for any undesirable consequences; the authors accept NO LIABILITY for damages of any kind.

These conditions apply to any software derived from or based on the IJG code, not just to the unmodified library. If you use our work, you ought to acknowledge us.

Permission is NOT granted for the use of any IJG author's name or company name in advertising or publicity relating to this software or products derived from it. This software may be referred to only as "the Independent JPEG Group's software".

We specifically permit and encourage the use of this software as the basis of commercial products, provided that all warranty or liability claims are assumed by the product vendor.

ansi2knr.c is included in this distribution by permission of L. Peter Deutsch, sole proprietor of its copyright holder, Aladdin Enterprises of Menlo Park, CA.ansi2knr.c is NOT covered by the above copyright and conditions, but instead by the usual distribution terms of the Free Software Foundation; principally, that you must include source code if you redistribute it. (See the file ansi2knr.c for full details.) However, since ansi2knr.c is not needed as part of any program generated from the IJG code, this does not limit you more than the foregoing paragraphs do.

The Unix configuration script "configure" was produced with GNU Autoconf. It is copyright by the Free Software Foundation but is freely distributable. The same holds for its supporting scripts (config.guess, config.sub, ltmain.sh). Another support script, install-sh, is copyright by X Consortium but is also freely distributable.

The IJG distribution formerly included code to read and write GIF files. To avoid entanglement with the Unisys LZW patent, GIF reading support has been removed altogether, and the GIF writer has been simplified to produce "uncompressed GIFs". This technique does not use the LZW algorithm; the resulting GIF files are larger than usual, but are readable by all standard GIF decoders.

We are required to state that "The Graphics Interchange Format(c) is the Copyright property of CompuServe Incorporated. GIF(sm) is a Service Mark property of CompuServe Incorporated."

REFERENCES

We recommend reading one or more of these references before trying to understand the innards of the JPEG software.

The best short technical introduction to the JPEG compression algorithm is Wallace, Gregory K. "The JPEG Still Picture Compression Standard", Communications of the ACM, April 1991 (vol. 34 no. 4), pp. 30-44. (Adjacent articles in that issue discuss MPEG motion picture compression, applications of JPEG, and related topics.) If you don't have the CACM issue handy, a PostScript file containing a revised version of Wallace's article is available at http://www.ijg.org/files/wallace.ps.gz. The file (actually a preprint for an article that appeared in IEEE Trans. Consumer Electronics) omits the sample images that appeared in CACM, but it includes corrections and some added material. Note: the Wallace article is copyright ACM and IEEE, and it may not be used for commercial purposes.

A somewhat less technical, more leisurely introduction to JPEG can be found in "The Data Compression Book" by Mark Nelson and Jean-loup Gailly, published by M&T Books (New York), 2nd ed. 1996, ISBN 1-55851-434-1. This book provides good explanations and example C code for a multitude of compression methods including JPEG. It is an excellent source if you are comfortable reading C code but don't know much about data compression in general. The book's JPEG sample code is far from industrial-strength, but when you are ready to look at a full implementation, you've got one here.

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Polycom 3725-26792-003, A, 5.2.0 manual References
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5.2.0, A specifications

The Polycom A,3725-61955-004 is an advanced audio conferencing solution renowned for its quality and reliable performance. Designed to enhance communication in diverse settings, from large conference rooms to small meeting spaces, this device integrates cutting-edge technologies to ensure crystal-clear audio and seamless connectivity.

One of the standout features of the Polycom A,3725-61955-004 is its high-definition audio capabilities. Utilizing Polycom's patented HD Voice technology, this conference phone delivers a rich sound experience, providing natural warmth and clarity to conversations. This technology significantly reduces background noise and enhances the quality of voice transmission, thereby improving the overall meeting experience.

In terms of design, the Polycom A,3725-61955-004 is sleek and user-friendly. Its intuitive interface makes it easy for users to navigate through functions, allowing quick access to dialing and conferencing features. The device often includes a graphical user interface on a color display, providing visual cues for easier operation and management of calls.

Connectivity is another essential characteristic of the Polycom A,3725-61955-004. The device supports SIP (Session Initiation Protocol) and H.323 protocols, ensuring compatibility with a wide range of VoIP (Voice over IP) systems. This versatility allows organizations to integrate the conference phone seamlessly into their existing communication infrastructure. Additionally, the device usually features a variety of connectivity options, including standard telephone lines and network connections, facilitating an easier setup.

Another key technological feature is the advanced echo cancellation and noise reduction capabilities. Polycom’s Acoustic Clarity technology helps eliminate echoes and unwanted sounds, making it easier for participants to engage in a natural conversation without interruptions.

Security is also a priority with the Polycom A,3725-61955-004. The device is equipped with robust encryption protocols to ensure that sensitive conversations remain private and secure from potential eavesdropping.

Overall, the Polycom A,3725-61955-004 combines state-of-the-art audio technology, user-friendly design, and flexible connectivity options to create an exceptional conferencing experience. Its focus on audio quality, ease of use, and security makes it an invaluable tool for organizations looking to enhance their communication capabilities in any setting. With reliability and performance at its core, this conferencing solution is well-suited for modern business needs.
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