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The unit interval is the minimum time interval between condition changes of a data transmission signal, also known as the pulse time or symbol duration time. A unit interval (UI) is the time taken in a data stream by each subsequent pulse (or symbol). When UI is used as a measurement unit of a time interval, the resulting measure of such time interval is dimensionless. It expresses the time interval in terms of UI. Very often, but not always, the UI coincides with the bit time, i.e. with the time interval taken to transmit one bit (binary information digit).

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  • Unit Interval (de)
  • Intervalo unitário (transmissão de dados) (pt)
  • Unit interval (data transmission) (en)
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  • O intervalo unitário é o intervalo de tempo mínimo entre mudanças de condição de um sinal de transmissão de dados, também conhecido como Baud. (pt)
  • Das Unit Interval, abgekürzt UI, ist eine Hilfsmaßeinheit zur Bewertung von Jitter im Rahmen der digitalen Signalverarbeitung und wird unter anderem in der ITU-T G.810 und bei digitalen Videoschnittstellen wie dem Serial Digital Interface (SDI) verwendet. (de)
  • The unit interval is the minimum time interval between condition changes of a data transmission signal, also known as the pulse time or symbol duration time. A unit interval (UI) is the time taken in a data stream by each subsequent pulse (or symbol). When UI is used as a measurement unit of a time interval, the resulting measure of such time interval is dimensionless. It expresses the time interval in terms of UI. Very often, but not always, the UI coincides with the bit time, i.e. with the time interval taken to transmit one bit (binary information digit). (en)
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  • Das Unit Interval, abgekürzt UI, ist eine Hilfsmaßeinheit zur Bewertung von Jitter im Rahmen der digitalen Signalverarbeitung und wird unter anderem in der ITU-T G.810 und bei digitalen Videoschnittstellen wie dem Serial Digital Interface (SDI) verwendet. Ein Unit Intervall (1 UI) entspricht der Zeitdauer zur Übertragung eines Sendesymbols. Durch Jitter treten bei der konkreten Zeitdauer Abweichungen auf, wodurch es infolgedessen zu Übertragungsfehlern kommen kann. Typische Grenzwerte für Jitter liegen im Bereich von 0,1 UI bis 0,3 UI. Ab 0,5 UI ist die so genannte horizontale Öffnung im Augendiagramm geschlossen und es tritt Symbolübersprechen auf. (de)
  • The unit interval is the minimum time interval between condition changes of a data transmission signal, also known as the pulse time or symbol duration time. A unit interval (UI) is the time taken in a data stream by each subsequent pulse (or symbol). When UI is used as a measurement unit of a time interval, the resulting measure of such time interval is dimensionless. It expresses the time interval in terms of UI. Very often, but not always, the UI coincides with the bit time, i.e. with the time interval taken to transmit one bit (binary information digit). The two coincide in fact in NRZ transmission; they do not coincide in a 2B1Q transmission, where one pulse takes the time of two bits. For example, in a serial line with a baud rate of 2.5 Gbit/s, a unit interval is 1/(2.5 Gbit/s) = 0.4 ns/baud. (en)
  • O intervalo unitário é o intervalo de tempo mínimo entre mudanças de condição de um sinal de transmissão de dados, também conhecido como Baud. (pt)
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