H - Electricity – 04 – N
Patent
H - Electricity
04
N
355/15
H04N 9/28 (2006.01) H04N 3/22 (2006.01)
Patent
CA 1244962
Abstract A CRT calibration system is provided having a CRT with a display screen, an electron gun system, and a plurality of feedback elements. Each feedback element has an active area disposed proximately to the display screen at a preselected location such that an electron beam from the electron gun system can strike at least a portion of the active area. In response to being struck by electrons, each feedback element provides a feedback signal related to the area of the portion struck. The system also includes a detector system for detecting each feedback signal, and an integrating analog-to-analog converter which, in response, provides a digital signal related to the portion of the active area struck and thereby to the position of the electron beam relative to the particular feedback element interrogated. Also included is a control system for directing the electron beam to strike a sequence of portions of the active area for each feedback element, thereby evoking a corresponding sequence of feedback signals for each feedback element and a corresponding sequence of digital signals, enabling the control system to determine the location of each feedback element.
496559
Kirby Eades Gale Baker
Tektronix Inc.
LandOfFree
Autoconvergence of a cathode ray tube using a semiconductor... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Autoconvergence of a cathode ray tube using a semiconductor..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Autoconvergence of a cathode ray tube using a semiconductor... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1245546