Interline spacing adjustment circuit in a scanning crt...

Details Interline spacing adjustment circuit in a scanning crt... Interline spacing adjustment circuit in a scanning crt...

G - Physics

09

G

375/46

G09G 1/00 (2006.01) G09G 5/18 (2006.01)

Patent

CA 1206282

Abstract A scanning CRT visual display system 10 is provided in which the operation of the CRT controller 21 which provides video blanking pulses and horizontal and vertical sync pulses (at B, 25 and 26) for controlling the CRT display is temporarily halted when a larger than normal vertical spacing between horizontal scan lines is desired. During the time that the operation of the CRT controller is halted, which is accomplished by the selective blocking of clock timing pulses (at 33) to the controller 21, an auxiliary synchronous counter circuit 62 effectively counts the clock timing pulses and provides a substitute horizontal sync pulse (at G) for the CRT display such that during the implementation of a larger than normal vertical step for the scanning CRT display system, horizontal sync pulses are always provided even though the operation of the CRT controller is temporarily suspended during this time.

430737

Affiliated with

Also associated with

Rating

Interline spacing adjustment circuit in a scanning crt... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Interline spacing adjustment circuit in a scanning crt..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interline spacing adjustment circuit in a scanning crt... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1252267