Title: Procedure of bargraph display for measured quantities

Abstract: A procedure for the display of measured quantities as a bargraph with the help of a row of addressable display elements, whereby the display elements are interconnected on one side into contiguous groups and on the other side according to like position within each group. Either the on-groups, in which all display elements are to be excited, or the mixed group, in which only a part of the display elements are to be excited, are addressed in a rapid alteration imperceptible to the eye of the beholder. The amplitude of the driving voltage across display elements in the mixed group is zero during the strobe interval for the on-groups.

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Inventors: Kmetz, Allan R. (Nussbaumen, CH)

Application Number: 909724
Filing Date: 1978-05-26
Publication_date: 1980-05-13
Assignee: BBC Brown Boveri & Company Limited (Baden, CH)
Primary Class(es): 345/40 345/208
Other Classes:
US Patent Ref:

3877017	Apr, 1975	Kawakami et al.	340/805.
3973252	Aug, 1976	Mitomo et al.	340/805.
3976362	Aug, 1976	Kawakami	340/805.
4110665	Aug, 1978	Moore	340/754.
4117472	Sep, 1978	Freer et al.	340/805.
4121203	Oct, 1978	Edwards et al.	340/805.

Other Refs:
Primary Examiner: Trafton, David L.
Assistant Examiner:
Attorney: Oblon, Fisher, Spivak, McClelland & Maier