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Publication of CH1318973A4publicationCriticalpatent/CH1318973A4/xx
G04C21/00—Producing acoustic time signals by electrical means
G04C21/16—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times
G04C21/38—Adjusting the duration of signals
G—PHYSICS
G04—HOROLOGY
G04F—TIME-INTERVAL MEASURING
G04F10/00—Apparatus for measuring unknown time intervals by electric means
G04F10/04—Apparatus for measuring unknown time intervals by electric means by counting pulses or half-cycles of an AC
G—PHYSICS
G04—HOROLOGY
G04G—ELECTRONIC TIME-PIECES
G04G15/00—Time-pieces comprising means to be operated at preselected times or after preselected time intervals
G—PHYSICS
G04—HOROLOGY
G04G—ELECTRONIC TIME-PIECES
G04G5/00—Setting, i.e. correcting or changing, the time-indication
G04G5/04—Setting, i.e. correcting or changing, the time-indication by setting each of the displayed values, e.g. date, hour, independently
G—PHYSICS
G04—HOROLOGY
G04G—ELECTRONIC TIME-PIECES
G04G9/00—Visual time or date indication means
G04G9/08—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques
G04G9/087—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques provided with means for displaying at will a time indication or a date or a part thereof