enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Vertical blanking interval - Wikipedia

    en.wikipedia.org/wiki/Vertical_blanking_interval

    1135×624 4fsc decoded frame (Luma) from a Composite 4fsc decode of a LaserDisc via ld-decode.. In a raster scan display, the vertical blanking interval (VBI), also known as the vertical interval or VBLANK, is the time between the end of the final visible line of a frame or field [1] [2] and the beginning of the first visible line of the next frame or field.

  3. Vertebrobasilar insufficiency - Wikipedia

    en.wikipedia.org/wiki/Vertebrobasilar_insufficiency

    Vertebrobasilar insufficiency (VBI) describes a temporary set of symptoms due to decreased blood flow in the posterior circulation of the brain. The posterior circulation supplies the medulla , pons , midbrain , cerebellum and (in 70-80% of people) supplies the posterior cerebellar artery to the thalamus and occipital cortex . [ 1 ]

  4. Vertical blank interrupt - Wikipedia

    en.wikipedia.org/wiki/Vertical_blank_interrupt

    A vertical blank interrupt (or VBI) is a hardware feature found in some legacy computer systems that generate a video signal.Cathode-ray tube based video display circuits generate vertical blanking and vertical sync pulses when the display picture has completed and the raster is being returned to the start of the display.

  5. CGMS-A - Wikipedia

    en.wikipedia.org/wiki/CGMS-A

    The signal itself can be easily stripped by normalizing the VBI, e.g. using a video stabilizer to counter the side effects from Macrovision's manipulation of the VBI. CGMS-A VBI data is commingled or generally near captioning signals, so removal of CGMS-A will likely remove captioning as well.

  6. Teletext - Wikipedia

    en.wikipedia.org/wiki/Teletext

    Exurb cut-out of VBI space of Teletext data from a 4fsc sampled vhs tape. Teletext information is broadcast in the vertical blanking interval between image frames in a broadcast television signal, in numbered "pages". For example, a list of news headlines might appear on page 110; a teletext user would type "110" into the TV's remote control to ...

  7. Ancillary data - Wikipedia

    en.wikipedia.org/wiki/Ancillary_data

    Ancillary data (commonly abbreviated as ANC data), in the context of television systems, refers to a means which by non-video information (such as audio, other forms of essence, and metadata) may be embedded within the serial digital interface.

  8. Analog Protection System - Wikipedia

    en.wikipedia.org/wiki/Analog_Protection_System

    Known as the vertical blanking interval (VBI), these extra lines historically served no purpose other than to contain the vertical synchronizing pulses, but in more modern implementations they are used to carry or convey different things in different countries; for example closed captioning. Macrovision pulses in an otherwise unused video line.

  9. List of copy protection schemes - Wikipedia

    en.wikipedia.org/wiki/List_of_copy_protection...

    Inserts a waveform into the non-picture Vertical Blanking Interval (VBI) of the analog video signal so compatible device can block or restrict recording when the waveform is detected. Spiradisc (Floppy Disk) Writes data on spiraling paths rather than in concentric circles. USB-Cops (USB-stick) Using a normal USB-stick as a key.