EP 0008234 A1 19800220 - Electronic calendar device.
Title (en)
Electronic calendar device.
Title (de)
Elektronische Kalenderanordnung.
Title (fr)
Dispositif calendrier électronique.
Publication
Application
Priority
GB 7833124 A 19780811
Abstract (en)
An electronic calendar device comprises an array of thirteen liquid crystal devices each carrying a four-numeral column of a conventional calendar. By selecting an appropriate seven consecutive liquid crystal devices for display, the correct calendar display for a particular month can be generated. The numerals 29, 30 and 31 are carried on separate liquid crystal devices and can be energised when required for a particular month. Logic circuitry is provided to enable the calendar device to run rapidly forward or backward to provide calendars for selected months in the future or in the past.
IPC 1-7
IPC 8 full level
CPC (source: EP)
G04G 9/025 (2013.01); G09D 3/12 (2013.01)
Citation (search report)
- US 3792541 A 19740219 - ENGLE R
- FR 2156015 A1 19730525 - SEIKO INSTR & ELECTRONICS
- US RE29250 E 19770607
- [X] PATENT ABSTRACTS OF JAPAN, Vol. 2, No. 92, July 28, 1978, page 4325E78 & JP-A-53 057 067 (24.05.1978)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LU NL SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 79301616 A 19790809