In palm recognition a 3-dimensional image of the hand is collected and compared to the stored sample. Palm recognition devices are cumbersome artefacts (unlike fingerprint and iris recognition devices) but can absorb perform a great amount of identification acts in a short time. They are therefore preferably installed in situations where a large number of people is identified, as in airports.
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Copyright protection generally means that certain uses of a work are lawful only if they are done with the authorization of the owner of the copyright. The most typical are the following:
- copying or reproducing a work
- performing a work in public
- making a sound recording of a work
- making a motion picture of a work
- broadcasting a work
- translating a work
- adapting a work
Under certain national laws, some of these rights, which are referred to, as "economic rights'" are not exclusive rights of authorization but in specific cases, merely rights to remuneration. Some strictly determined uses (for example quotations or the use of works by way of illustration for teaching) are completely free, that is, they require neither authorization of, nor remuneration for, the owner of the copyright. This practice is described as
In addition to economic rights, authors enjoy "moral rights" on the basis of which they have the right to claim their authorship and require that their names be indicated on the copies of the work and in connection with other uses thereof. They also have the right to oppose the mutilation or deformation of their creations.
The owner of a copyright may usually transfer his right or may license certain uses of his work. Moral rights are generally inalienable and remain with the creator even after he has transferred his economic rights, although the author may waive their exercise.
Furthermore there exist rights related to copyright that are referred to as "neighboring rights". In general there are three kinds of neighboring rights: 1) the rights of performing artists in their performances, 2) the rights of producers of phonograms in their phonograms, and 3) the rights of broadcasting organizations in their radio and television programs. Neighboring rights attempt to protect those who assist intellectual creators to communicate their message and to disseminate their works to the public at large.
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Since the invention of appropriate means and technologies, communication no longer requires face-to-face meetings.
From writing and reading to using computers, expanding and exhausting one's possibilities to communicate relies more and more on the application of skills we have to learn. With the increasing importance of communication technologies, learning to apply them properly becomes a kind of rite of passage.
A Small World
From the very beginning - the first Sumerian pictographs on clay tablets - to today's state of the art technologies - broadband communication via
Since the invention of the electrical telegraph, but especially with today's growing digital communication networks, every location on earth seems to be close, however distant it may be, and also time no longer remains a significant dimension.
Threatened Cultural Memory
More and more information is transmitted and produced faster and faster, but the shelf life of information becomes more and more fragile. For more than 4500 years Sumerian pictographs written on clay tablets remained intact, but newspapers and books, printed some decades ago, crumble into pieces; film reels, video tapes and cassettes corrode. Digitalization of information is not a cure; on the contrary it even intensifies the danger of destroying cultural heritage. Data increasingly requires specific software and hardware, but to regularly convert all available digitized information is an unexecutable task.
Compared to the longevity of pictographs on clay tablets, digitized information is produced for instant one-time use. The increasing production and processing of information causes a problem hitherto unknown: the loss of our cultural memory.
For further information see
For another history of communication systems see
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In this essay, Friedrich Kittler, one of the world's leading media theorists and media historicist, offers a concise and fascinating history of communication technologies in general terms from its beginnings up to now, provoking new insights by showing interesting interdependencies.
http://www.ctheory.com/ga1.14.html
Headquartered in San Jose, USA, AboveNet Communications is a
http://www.above.net
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It is a system, where letters get converted into numeric characters.
The numbers were not written down and sent but signaled with torches.
for example:
A=1-1
B=1-2
C=1-3
W=5-2
for more information see: