non-return - определение. Что такое non-return
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Что (кто) такое non-return - определение

LINE CODE IN WHICH THE SIGNAL VALUE DOES NOT RETURN TO ZERO AFTER EACH PULSE
Non-return-to-zero, inverted; NRZI; Non return to zero; Non return to zero, inverted; Non-return-to-zero space; Nrz-l; Polar encoding; NRZ encoding; NRZ-L; NRZ-I; NRZS; NRZM; NRZL; Non-Return-to-Zero; Non-Return-to-Zero Inverted; Non-return to zero; NRZI-S; SNRZI; Synchronized NRZI; Randomized NRZ; Randomized NRZI; RNRZI; RNRZ; Randomised NRZI; Randomised NRZ; Synchronised NRZI; NRZ-S; NRZ-M; NRZ(M); NRZ(S); NRZ(I); NRZ(L); NRZ-C; NRZC; NRZ(C); Inhibit code; IBM code; Non-Return to Zero; Non-Return to Zero Inverting; Non-return to zero inverting; Non-return-to-zero inverting; Non-return-to-zero-inverting
  • An example of the NRZI encoding,  transition on 1
  • The binary signal is encoded using rectangular pulse-amplitude modulation with polar NRZ(L), or polar non-return-to-zero-level code
  • The opposite convention, transition on 0
  •  Unipolar NRZ(L), or unipolar non-return-to-zero level
  • Non-return-to-zero space
  • Encoder for NRZI, toggle on one
  • Encoder for NRZS, toggle on zero

non-return      
¦ adjective permitting the flow of air or liquid in one direction only.
Pneumatic non-return valve         
Pneumatic non-return valves
Pneumatic non-return valves are used where a normal non-return valve would be ineffective. This is for example where there is a risk of flood water entering a site but an equal risk of pollution or a chemical spills leaving a site and polluting the environment.
Non-return-to-zero         
In telecommunication, a non-return-to-zero (NRZ) line code is a binary code in which ones are represented by one significant condition, usually a positive voltage, while zeros are represented by some other significant condition, usually a negative voltage, with no other neutral or rest condition.

Википедия

Non-return-to-zero

In telecommunication, a non-return-to-zero (NRZ) line code is a binary code in which ones are represented by one significant condition, usually a positive voltage, while zeros are represented by some other significant condition, usually a negative voltage, with no other neutral or rest condition.

For a given data signaling rate, i.e., bit rate, the NRZ code requires only half the baseband bandwidth required by the Manchester code (the passband bandwidth is the same). The pulses in NRZ have more energy than a return-to-zero (RZ) code, which also has an additional rest state beside the conditions for ones and zeros.

When used to represent data in an asynchronous communication scheme, the absence of a neutral state requires other mechanisms for bit synchronization when a separate clock signal is not available. Since NRZ is not inherently a self-clocking signal, some additional synchronization technique must be used for avoiding bit slips; examples of such techniques are a run-length-limited constraint and a parallel synchronization signal.

Примеры употребления для non-return
1. The 1.28–million–dollar project has been financed by Iran as non–return relief aid.
2. Thanking China for its non–return financial aid for Afghanistan‘s reconstruction, he said that his country is in favor of the policy of a unified China and will attempt to expand bilateral relations.
3. For his part, the Managing Director of Khorasan Razavi province Telecommunications Department, Ali Kargozar said that a 560–million–dollar non–return credit allocated to the project by Iran facilitated the implementation of the fiber optic network.