Xem 1-5 trên 5 kết quả Digital scrambling
  • In this section, we see how we can represent digital data by using digital signals. The conversion involves three techniques: line coding, block coding, and scrambling. Line coding is always needed; block coding and scrambling may or may not be needed.

    ppt71p trada85 22-01-2013 21 6   Download

  • With the development of computing technologies, digital media security becomes an ever increasing issue of daily life. As computer software and hardware evolves and as more of it becomes accessible as an Internet application or service, information security has gone from initially protecting digital images, into the area of multimedia. This area of multimedia includes computer graphics, images, digital video and digital audio. As the Internet expands, so does the significance of multimedia security.

    pdf110p tuanloc_do 03-12-2012 18 3   Download

  • In the last two years, optical networking has risen into the public consciousness in many different ways. It has become the next great technological thing — businesses want it, service providers want to sell it, device manufacturers want to provide equipment, and component manufacturers are scrambling to supply pieces and parts to all of them. At the time of this writing, an 18-month backlog on optical fiber and some optical amplifiers exists because of the enormous and unanticipated demand for highbandwidth optical connectivity.

    pdf289p taurus23 02-08-2012 43 8   Download

  • Atlas DMT and Other Industry Leaders Prove the Effectiveness of Online Advertising Online Advertising has been much maligned in recent months. Following the tumble of the NASDAQ, many in the industry are scrambling to prove the viability of their advertising-supported business models. Ironically, the Internet’s own accountability has been its downfall. Due to reports of declining click-through rates (CTR), banner advertising is suddenly the black-sheep marketing channel. The problem is that focusing on click-through rates misses the point of advertising.

    pdf4p khangoc23910 19-09-2012 21 2   Download

  • Encryption is a widely used technique which involves making information indecipherable to protect it from unauthorised viewing or use, especially during transmission or when it is held on removable magnetic media. Encryption is usually based on a key(s) without which the information cannot be decoded (decrypted). The most widely used encryption system is DES (Data Encryption Standard) although increasingly this is being replaced commercially by the more secure public key system RSA.

    pdf21p doipassword 01-02-2013 17 3   Download

Đồng bộ tài khoản