a small local pattern covering only a single character, and stepping to a position for the following character, e.g. in rectangular or polar co-ordinates, or in the form of a framed star

Full Title

Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; (cathode-ray oscilloscopes G01R13/20; ) > using single beam tubes (G09G1/26, G09G1/28 take precedence), > the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible > a small local pattern covering only a single character, and stepping to a position for the following character, e.g. in rectangular or polar co-ordinates, or in the form of a framed star