Light pen detection system

Details Light pen detection system Light pen detection system

G - Physics

06

F

375/23

G06F 3/14 (2006.01) G06F 3/033 (2006.01)

Patent

CA 1120620

Title of the Invention LIGHT PEN DETECTION SYSTEM Abstract of the Disclosure A light pen detection system used in a data display system utilizes a cathode ray tube (CRT) in which characters displayed on the screen of the cathode ray tube are detected by the light pen, the detection of the character by the light pen resulting in the background inversion of the character sensed thereby providing a visual indication to the operator the character sensed by the light pen. A locking circuit is provided which, upon the sensing of a displayed character by the light pen, conditions the sensing circuits connected to the light pen to continually output the character sensed until the light pen is moved completely away from the locked character.

315861

Affiliated with

Also associated with

Rating

Light pen detection system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Light pen detection system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light pen detection system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-325192