Copyright Management and Control Systems: Pre-Infringement Pre-infringement copyright management and control systems that inhibit or control infringement of intellectual property may be put into place by copyright owners before distributing their works. Examples are: Contracts Contracts are a pre-infringement control method, which very often is underestimated. Properly formed contracts enable copyright holders to restrict the use of their works in excess of the rights granted under copyright laws. Copy Protection This approach was standard in the 1980s, but rejected by consumers and relatively easy to break. Still copy protection, whereby the vendor limits the number of times a file can be copied, is used in certain situations. Limited Functionality This method allows copyright owners to provide a copy of the work, which is functionally limited. Software creators, for example, can distribute software that cannot print or save. A fully functional version has to be bought from the vendor. Date Bombs Here the intellectual property holder distributes a fully functional copy but locks off access at a pre-specified date or after a certain number of uses.

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Braille Universally accepted system of writing used by and for blind persons and consisting of a code of 63 characters, each made up of one to six raised dots arranged in a six-position matrix or cell. These Braille characters are embossed in lines on paper and read by passing the fingers lightly over the manuscript. Louis Braille, who was blinded at the age of three, invented the system in 1824 while a student at the Institution Nationale des Jeunes Aveugles (National Institute for Blind Children), Paris.

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