The learn to post video

[SeanPaul_031]

OK I watched the video and I didnt want to make a new thread about this (especially after watching the vid) but Infanteer locked the other thread so there couldnt be a discussion.

Whats the history on the loading screen (with the circles and the picture of the indian)????

This screen appeared in the movie Amityville horror. Its on the basement TV that apparently talks to the guy telling him to murder his family.......Jus wondering what the history behind that is or if there even is one?

 

[Fishbone Jones]

It's a test pattern that would be broadcast when there was no programming. Mostly from the days when it was all live TV. IIRC, programming used to start about 06:00 and finish around midnight. The rest of the time the station would broadcast a test pattern. Each station had their own, but the pattern was about the same.

It also represents a prior technology, being designed for early black and white television. Yes, there was a functional purpose to it, as there remains for its multitude of colorful successors. The test pattern is a standardized image used for the adjustment of vertical and horizontal linearity (proportions), scanning linearity (even spacing of the scan lines), video frequencies (shadings), and picture detail resolution (focus), interlacing and oscillation, both at the center of the screen and at the corners (where performance is most likely to degrade). The circles, shadings, grids, diagonals, and converging lines of this early test pattern, as well as the ones in use today, are all there for a reason.

 

[SeanPaul_031]

oh, makes sense, thats interesting. All along Im thinking its some brainwashing subliminal message... ;D

The circles, shadings, grids, diagonals, and converging lines of this early test pattern, as well as the ones in use today, are all there for a reason.

Whats with the Indian though?

 

[Fishbone Jones]

A google search keeps turning up the same info:

"Probably the most famous American B&W test pattern is the so-called "Indian Head" monoscope pattern. This pattern was originated by RCA in 1939; it was designed to be generated using a special tube called a monoscope, a CRT which had a metal plate target on which the pat- tern was printed. The black lines of the pattern would interrupt current flow as the pattern was scanned to provide the desired video output. These tubes could only handle black and white - no shades of gray hence they had to be simulated either with a halftone dot pattern or with patterns of fine lines.[2]"

None of the sites indicate the reason for the "Indian Head". The reason is probably lost in the annals of time. Most all stations at the time used the RCA test card though.

 

[45506445210414924]

I must say, watching that brought back some good highschool videos! Great video

I remember reading it somewhere throughout this forum, not sure if it has been done or not, but deffinetly giving a link or attatching it even to this url under the guidelines would save a lot of repeated questions and would prob. cut down quite a bit of bandwidth too!

Cheers

 

[Fishbone Jones]

Thanks. Already in use.