Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alps Electric Co LtdfiledCriticalAlps Electric Co Ltd
Priority to KR7401339ApriorityCriticalpatent/KR790000449B1/en
Application grantedgrantedCritical
Publication of KR790000449B1publicationCriticalpatent/KR790000449B1/en
Time digit for time setting was selected and charged freely and other needed signals were generated together with the time setting signal. One line of each direction of a matrix circuit was selected by a time scan circuit and a channel scan circuit. The device had a decoder which generates a time digit signal without relation to the line connection of the matrix circuit. At the designated set time, a time setting signal and other needed signals were generated automatically.