EP 0254525 A2 19880127 - Programmable time switch.
Title (en)
Programmable time switch.
Title (de)
Programmierbare Schaltuhr.
Title (fr)
Interrupteur horaire programmable.
Publication
Application
Priority
GB 8617760 A 19860721
Abstract (en)
A microprocessor controlled time switch has a liquid crystal display device (13) with provision for displaying day of the week and time. Below the display a row of four keys (21 to 24) are used to select programming functions and a key (20) can be pressed at either end to increment and decrement numerical values. The keys (21 to 24) are multi-function and, above each key, the display device (13) includes a column of three legends, of which only one is ever displayed at a time. The microprocessor controls the legends (27) so that, in all phases of operation, the functions performed by the keys (21 to 24) are apparent.
IPC 1-7
IPC 8 full level
G04G 15/00 (2006.01); G04G 21/00 (2010.01)
CPC (source: EP)
G04G 15/006 (2013.01); G04G 21/00 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0254525 A2 19880127; EP 0254525 A3 19880330; GB 2193011 A 19880127; GB 2193011 B 19910130; GB 8617760 D0 19860828
DOCDB simple family (application)
EP 87306424 A 19870720; GB 8617760 A 19860721