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In telecommunications, a line code is a pattern of voltage, current, or photons used to represent digital data transmitted down a communication channel or written to a storage medium. This repertoire of signals is usually called a constrained code in data storage systems. [ 1 ]
ISDB supports RMP (Rights management and protection). Since all digital television (DTV) systems carry digital data content, a DVD or high-definition (HD) recorder could easily copy content losslessly. US major film studios requested copy protection; this was the main reason for RMP being mandated. The content has three modes: "copy once ...
In telecommunication, an enhanced-non-return-to-zero-level (E-NRZ-L) line code is a binary code in which 1s are represented as low level and 0s are represented as high level condition with no other neutral or rest condition, similar to Non-return-to-zero; However, the major enhancement over NRZ is the addition of a parity bit (usually odd parity) to the end of the bit stream.
Sri Lanka Freedom Party: 19 August 1994: D. B. Wijetunga [21] [22] Nimal Siripala de Silva: Sri Lanka Freedom Party: 19 October 2000: Chandrika Kumaratunga [23] [24] Indika Gunawardena: Sri Lanka Freedom Party: 14 September 2001 [24] [25] D. M. Jayaratne: Sri Lanka Freedom Party: 10 April 2004: Minister of Post, Telecommunications and Udarata ...
Centre for Telecommunication Research is a research-based institute at the Sri Lanka Technological Campus (SLTC) to carry out innovative, collaborative and industry-sponsored research works in wireless communications and networking. Research activities at the CTR, both fundamental and applied, mainly focus on technologies related to the ...
Some more sophisticated schemes vary these durations to convey additional information. It is analogous to unipolar encoding line code . On–off keying is most commonly used to transmit Morse code over radio frequencies (referred to as CW ( continuous wave ) operation), although in principle any digital encoding scheme may be used.
Early disk drives used very simple encoding schemes, such as RLL (0,1) FM code, followed by RLL (1,3) MFM code, which were widely used in hard disk drives until the mid-1980s and are still used in digital optical discs such as CD, DVD, MD, Hi-MD and Blu-ray. Higher-density RLL (2,7) and RLL (1,7) codes became the de facto industry standard for ...
It was established to develop the economy of Sri Lanka through ICT. To this end, it works to improve the country's technological capacity, such as building infrastructure, and the readiness of its people, through education and human resources. It is also active in developing regulations around the use of technology and disseminating information ...