•October 22, 2009 •
Leave a Comment
•October 9, 2009 •
Leave a Comment
I read often about augmented reality applications being developed. Some are available on the iPhone. It fires me up because I am working in this area, but I am focusing on actual computer vision for augmented reality. Most of the apps I have seen are only using GPS plus the compass to layer up some graphics on the camera view. What is needed is a lock with the real time image and that is the technology I have developed. Here is another article about AR on phones.
Posted in Graphics and Augmented Reality
Tags: augmented reality, computer vision, mobile phone
•October 1, 2009 •
Leave a Comment
•September 22, 2009 •
Leave a Comment
This guy Jon Stanley does some really great vintage projects and I love his web site.
Posted in Weird or Obsolete Technology
•September 21, 2009 •
Leave a Comment
This page is interesting detailing Hewlett Packard frequency counters using vacuum tube and cold cathode tube based decade counters and divider chains. What is particularly interesting is that in order to decode the count from the vacuum tube flip flops, they use neon lights and associated light sensitive resistors which drive the nixie tube cathodes to ground.
Posted in Weird or Obsolete Technology
Tags: decade counter, flip-flop, frequency counter, hewlett packard, nixie, vacuum tube
•September 20, 2009 •
Leave a Comment
Here is a photo of the count register and one digit of the AE register displaying the result of the data entry on a nixie tube. The lights indicate which relays are on. This is actually in mid count so the lights are flashing pretty fast. Note the phone dial on the lower left.

Relay counter and nixie display
I posted a
video of this counter register on youtube.
Posted in Relay Square Root Computer
•September 20, 2009 •
Leave a Comment
This page has is a great resource for information about calculators from long ago. In particular the section on the Anita desktop calulator is interesting to me using vacuum tubes, cold cathode tubes, nixies and a dekatron.
Posted in Relay Square Root Computer