Hollow Ring Shaped Object During The Day, Just Above Tree Line

I saw this as a kid and was more interested if anyone had ever seen a similar shaped UFO.  I was eight years old and my parents and I were visiting their friends, somewhere rural outside of Toronto.  Not exactly sure of where but it would have been in the GTA, summer, late in the afternoon. As the only kid there, I was told to go play outside. The backyard was a large grass area, with large trees( pines and such) and wooded areas around the perimeter of the property.
Anyway, I saw a movement in the sky and looked up. Gliding through the air was a ring shaped object. Not a disk, more like a substantial wedding band, with tall sides but a hollow narrow body. There was no noise, no smoke, no vapor. It was moving quite slow and low, maybe twice the height of the tree line.  The outer side of the "band" was black and had little white dot lights on it, similar to an electronic score board.  The ring itself did not appear to be spinning, but the white dots seemed to be scrolling around  and changing their configuration, but nothing that I could read.  The little dot symbols seemed very simple, just randomly changing and moving around.  There was no discernible front or back. It just quietly glided past with nothing changing other than the dots.  I watched it quite calmly for about 30 seconds and then it went past the treeline and I couldn't see it anymore.I then went in to get everyone to come out to the front yard to see if we could still see it.  The adults weren't that interested in my rambling about a spaceship and when I went back outside, of course it had not reappeared.
Being 8 at the time, I don't seem to have a good grasp of the size. I seem to recall it being small, maybe 15 to 15 feet across. I remember thinking that it had to have very small spacemen or that it was being controlled remotely, being that the shape didn't seem like anyone could be inside. But who knows, maybe it was bigger than I remember or maybe they were really really small, lol.
Over the years I have wondered if it was some sort of remote controlled aircraft or weird balloon, etc. but it just doesn't seem plausible. It was definitely flying, with no noise, no vapor, no strings and looked like a simple band horizontally gliding above the trees. I thought I would put it out there to see if anyone has ever seen anything similar
Witness indicates that the date of the sighting is approximate.  PD