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Linux console - Control characters ... during display of the frame buffer, while the 68000 has unrestricted access to DRAM during vertical and horizontal blanking ...

1.• Blanking Interval https://store.theartofservice.com/the-blanking-interval-toolkit.html

2. Analog television Structure of a video signal 1 The front porch is a brief (about 1.5 microsecond) period inserted between the end of each transmitted line of picture and the leading edge of the next line sync pulse. Its purpose was to allow voltage levels to stabilise in older televisions, preventing interference between picture lines. The front porch is the first component of the horizontal blanking interval which also contains the horizontal sync pulse and the back porch. https://store.theartofservice.com/the-blanking-interval-toolkit.html

3. Analog television Vertical synchronization 1 Vertical synchronization (Also vertical sync or VSYNC) separates the video fields. In PAL and NTSC, the vertical sync pulse occurs within the vertical blanking interval. The vertical sync pulses are made by prolonging the length of HSYNC pulses through almost the entire length of the scan line. https://store.theartofservice.com/the-blanking-interval-toolkit.html

4. Analog television Vertical synchronization 1 Software such as Video Games and computer aided design (CAD) packages often allow vertical synchronization as an option, because it delays the image update until the vertical blanking interval https://store.theartofservice.com/the-blanking-interval-toolkit.html

5. Linux console - Control characters 1 The console also supports extended escape sequences, ANSI CSI Mode sequences, and DEC Private Mode sequences. These extended sequences can control colors, visual effects like blinking, underline, intensity and inverse video, bell tone frequency and duration, VESA screen blanking interval. Aside from the textual blanking, there is no known way to place the VGA adapter into standby. https://store.theartofservice.com/the-blanking-interval-toolkit.html

6. Digital Video Broadcasting - Content 1 Older technologies such as teletext (DVB- TXT) and vertical blanking interval data (DVB-VBI) are also supported by the standards to ease conversion. However, for many applications more advanced alternatives like DVB-SUB for subtitling are available. https://store.theartofservice.com/the-blanking-interval-toolkit.html

7. Seven-segment display - Implementations 1 To operate any particular segment of any digit, the controlling integrated circuit would turn on the cathode driver for the selected digit, and the anode drivers for the desired segments; then after a short blanking interval the next digit would be selected and new segments lit, in a sequential fashion https://store.theartofservice.com/the-blanking-interval-toolkit.html

8. Macintosh 128K - Processor and memory 1 The 68000 and video controller take turns accessing DRAM every four CPU cycles during display of the frame buffer, while the 68000 has unrestricted access to DRAM during vertical and horizontal blanking intervals. Such an arrangement reduces the overall performance of the CPU as much as 35% for most codes as the display logic often blocks the CPU's access to RAM. This made the machine appear to run slower than several of its competitors, despite the nominally high clock rate. https://store.theartofservice.com/the-blanking-interval-toolkit.html

9. Electronic program guide - Current applications 1 Older television IPGs like Guide Plus+ relied on analog technology (such as the vertical blanking interval of analog television video signals) to distribute listings data to IPG-enabled consumer receiving equipment https://store.theartofservice.com/the-blanking-interval-toolkit.html

10. HDMI 1.4 - TMDS 1 During the Data Island period (which occurs during the horizontal and vertical blanking intervals), audio and auxiliary data are transmitted within a series of packets https://store.theartofservice.com/the-blanking-interval-toolkit.html

11. Composite video - Extensions to the composite video standard 1 Since TV screens hide the vertical blanking interval of a composite video signal and even overscan|crop the edges of the picture, extensions have been implemented by taking advantage of these unseen parts of the signal. Examples of these extensions include teletext, closed captioning, digital information regarding the show title, transmitting a set of reference colors that allows TV sets to automatically correct the hue mal-adjustments common with the NTSC color encoding system, etc. https://store.theartofservice.com/the-blanking-interval-toolkit.html

12. Atari 2600 - Hardware 1 After the controller scanned the last active line, a more leisurely vertical blanking interval began, during which the game could process input and update the positions and states of objects in the world https://store.theartofservice.com/the-blanking-interval-toolkit.html

13. Digital Millennium Copyright Act - Effect on analog video equipment 1 The technology works by adding additional lines to the video signal. In the NTSC video standard, blank lines (vertical blanking intervals) that the user cannot see are used for functions like closed captioning. Rovi Corporation uses these blank lines to implement its ACP technology. https://store.theartofservice.com/the-blanking-interval-toolkit.html

14. Digital Visual Interface - Technical overview 1 In single-link mode, the maximum pixel clock frequency is 165MHz that supports a maximum resolution of 2.75megapixels (including blanking interval) at 60Hz refresh https://store.theartofservice.com/the-blanking-interval-toolkit.html

15. Type A videotape 1 The VPR-1 had several problems, it did not record the vertical blanking interval, which is why it was not compliant to FCC broadcast standards. The video quality was not as good as other broadcast VTRs. Thus Sony and Ampex agreed to make a SMPTE approved type Type C videotape|C format VTR (which was based on Type A). Hitachi also later made a C format VTR. https://store.theartofservice.com/the-blanking-interval-toolkit.html

16. D-1 (Sony) - Format 1 Ancillary data can be put in H/V blanking intervals https://store.theartofservice.com/the-blanking-interval-toolkit.html

17. LaserDisc - Advantages 1 The vertical blanking interval, where the Macrovision signal would be implemented, was also used for the internal timing on LaserDisc players, so test discs with Macrovision would not play at all https://store.theartofservice.com/the-blanking-interval-toolkit.html

18. Video - Analog television 1 An analog video format consists of more information than the visible content of the frame. Preceding and following the image are lines and pixels containing synchronization information or a time delay. This surrounding margin is known as a 'blanking interval' or 'blanking region'; the horizontal and vertical front porch and back porch are the building blocks of the blanking interval. https://store.theartofservice.com/the-blanking-interval-toolkit.html

19. Kinescope - Technology 1 The time taken physically to move the film on by one frame and stop it so that the gate can be opened to expose a new frame of film to the two field (video)|fields of television picture is much longer than the vertical blanking interval between these fields—so the film is still moving when the start of the next field is being displayed on the television screen https://store.theartofservice.com/the-blanking-interval-toolkit.html

20. D-3 (video) 1 Four channels of 48 kHz 16-20 bit PCM audio, and other ancillary data, are inserted during the vertical blanking interval https://store.theartofservice.com/the-blanking-interval-toolkit.html

21. Dynamic random-access memory - Refresh rate 1 A few real-time systems refresh a portion of memory at a time determined by an external timer function that governs the operation of the rest of a system, such as the vertical blanking interval that occurs every 10–20ms in video equipment https://store.theartofservice.com/the-blanking-interval-toolkit.html

22. NTSC - Lines and refresh rate 1 This blanking interval was originally designed to simply blank the receiver's CRT to allow for the simple analog circuits and slow vertical retrace of early TV receivers https://store.theartofservice.com/the-blanking-interval-toolkit.html

23. Display Serial Interface 1 When in HS mode, commands are transmitted during the vertical blanking interval. https://store.theartofservice.com/the-blanking-interval-toolkit.html

24. Broadcast television systems - Viewing technology 1 For this reason, it is necessary to shut off the electron beam (corresponding to a video signal of zero luminance) during the time it takes to reorient the beam from the end of one line to the beginning of the next (horizontal retrace) and from the bottom of the screen to the top (vertical retrace or vertical blanking interval) https://store.theartofservice.com/the-blanking-interval-toolkit.html

25. Framebuffer - Page flipping 1 This switch is usually done during the vertical blanking interval to prevent the screen from Screen tearing|tearing (i.e., half the old frame is shown, and half the new frame is shown). https://store.theartofservice.com/the-blanking-interval-toolkit.html

26. Teletext 1 Teletext is a means of sending text and diagrams to a properly equipped television screen by use of one of the vertical blanking interval lines that together form the dark band dividing pictures horizontally on the television screen. [http://news.google.com/newspapers? nid=950dat=19790516id=DwEMAAAAIBAJsjid=21gD AAAAIBAJpg=6334,14832 Teletext: Soon You'll Be Punching Buttons And Talking Back To Your TV] It offers a range of text-based information, typically including news, weather and TV schedules https://store.theartofservice.com/the-blanking-interval-toolkit.html

27. Teletext - Invention Design 1 His configuration contained all the fundamental elements of classic Teletext including 24 text rows of 40 characters each, page selection, multiple screens of information and vertical blanking interval data transmission https://store.theartofservice.com/the-blanking-interval-toolkit.html

28. Teletext - Technology 1 Teletext information is broadcast in the vertical blanking interval between image frames in a broadcast television signal https://store.theartofservice.com/the-blanking-interval-toolkit.html

29. Teletext - Data transmission 1 Teletext in the PAL B system can make use the Vertical Blanking Interval|VBI lines 6–22 in first half image and 318–334 in the other to transmit 360 data bits including clock run-in and framing code during the PAL#PAL signal details|active video period at a rate of using binary Non-return-to-zero|NRZ line coding. [ http://www.ee-techs.com/tv/teletext-fullerton.pdf ee-techs.com – What is Teletext?], 2004ETS 300 706 – Enhanced Teletext specification, May 1997 The amplitude for a 0 is black level ±2% and a 1 is 66±6% of the difference between black and peak white level https://store.theartofservice.com/the-blanking-interval-toolkit.html