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  2. Defective pixel - Wikipedia

    en.wikipedia.org/wiki/Defective_pixel

    A stuck sub-pixel or stuck pixel is a pixel that is always "on". [2] This is usually caused by a transistor that is getting power all the time (VA/IPS) or not getting any power (TN) and is therefore continuously allowing light at that point to pass through to the RGB layer. Any given pixel will stay red, blue, or green and will not change when ...

  3. ISO 13406-2 - Wikipedia

    en.wikipedia.org/wiki/ISO_13406-2

    Three distinct types of defective pixels are described: Type 1 = a hot pixel (always on, being colour white) Type 2 = a dead pixel (always off, meaning black) Type 3 = a stuck pixel (one or more sub-pixels (red, blue or green) are always on or always off) The table below shows the maximum number of allowed defects (per type) per 1 million pixels.

  4. Compression artifact - Wikipedia

    en.wikipedia.org/wiki/Compression_artifact

    Lossy data compression involves discarding some of the media's data so that it becomes small enough to be stored within the desired disk space or transmitted (streamed) within the available bandwidth (known as the data rate or bit rate). If the compressor cannot store enough data in the compressed version, the result is a loss of quality, or ...

  5. ‘Army of the Dead’ Viewers Question Dead Pixels on Screens

    www.aol.com/army-dead-viewers-dead-pixels...

    If you happened to watch Zack Snyder’s “Army of the Dead” this weekend, you might have noticed something was not quite right. You weren’t alone — quite a few Twitter and Reddit users ...

  6. PACE (communication methodology) - Wikipedia

    en.wikipedia.org/wiki/PACE_(communication...

    Primary, alternate, contingency and emergency (PACE) is a methodology used to build a communication plan. [1] The method requires the author to determine the different stakeholders or parties that need to communicate and then determine, if possible, the best four, different, redundant forms of communication between each of those parties.

  7. Wavelength selective switching - Wikipedia

    en.wikipedia.org/wiki/Wavelength_Selective_Switching

    The inter-pixel gaps must be small compared to the beam size, to avoid perturbing the transmitted light significantly. Furthermore, each grid must be replicated for each of the switching stages creating the requirement of individually controlling thousands of pixels on different substrates so the advantages of this technology in terms of ...

  8. Head-of-line blocking - Wikipedia

    en.wikipedia.org/wiki/Head-of-line_blocking

    Head-of-line blocking example: The 1st and 3rd input flows are competing to send packets to the same output interface. In this case if the switching fabric decides to transfer the packet from the 3rd input flow, the 1st input flow cannot be processed in the same time slot.

  9. Mark and space - Wikipedia

    en.wikipedia.org/wiki/Mark_and_space

    Mark and space are terms used in telecommunications to describe two different signal states of a communications signal, generally at the physical layer of a communications system. The terms derive from the early days of the electric telegraph system, where the marking state would cause a mark to be output on paper, and the spacing state would ...