Digital setting device for electronic alarm clock - providing coded signal used to correct store contents to indicate angular position of rotatable element

摘要

The digital alarm clock has a mechanically movable setting element, providing coded signal at its output corresponding to its setting position. This signal is supplied to a logic network with at least one electronic store, the storage state of which is corrected in accordance with the position of the setting element. Pref. the latter comprises at least one manually rotatable element, with a digital scale visible through a viewing window, to indicate the angular position of the rotatable element, together with digital value representing the coded signal obtained from the setting element.