EP 0042360 A3 19811230 - ELECTRONIC WATCH, IN PARTICULAR WRIST WATCH, WITH DIGITAL DISPLAY AND GEOGRAPHIC-SOLAR FUNCTIONS
Title (en)
ELECTRONIC WATCH, IN PARTICULAR WRIST WATCH, WITH DIGITAL DISPLAY AND GEOGRAPHIC-SOLAR FUNCTIONS
Publication
Application
Priority
CH 445380 A 19800610
Abstract (en)
[origin: US4479722A] In order to provide easily accessible knowledge of the correlations between time, the geographical locale and the solar positions, the watch in question in addition to time-keeping means capable of displaying the current time (8.46A) also provides means capable of storing, processing in a microprocessor mode and displaying in a particular panel mode data of solar elevation and azimuth (h 35.4) as well as date data (11 27), a computer performing correlating operations between these various values. Pushbuttons (BPH', BPM', BPB') allow using this watch in various operational and correction situations, and other pushbuttons (BPH, BPM, BPB) allow more specific commands for correction, for search operations regarding date and place based on the solar data, for storage and call from memory of the various processed data. This watch can easily be implemented as a small wrist watch. It will be advantageously used by those interested in knowing the solar positions, by solar facility engineers, architects, airline pilots, believers in the Moslem faith etc.
IPC 1-7
IPC 8 full level
G04G 99/00 (2010.01); G04G 9/00 (2006.01)
CPC (source: EP US)
G04G 9/0076 (2013.01 - EP US)
Citation (search report)
- US 4077032 A 19780228 - VOLKMAN S ALAN
- JP 2000447878 A
- DE 2742242 A1 19790322 - ROETHKE ERNST ING GRAD
- FR 2295470 A1 19760716 - SEIKO INSTR & ELECTRONICS [JP]
- FR 2327583 A1 19770506 - SEIKO INSTR & ELECTRONICS [JP]
- FR 2282130 A1 19760312 - BULOVA WATCH CO INC [US]
- US 4136397 A 19790123 - PIERCE DARREL J
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0042360 A2 19811223; EP 0042360 A3 19811230; EP 0042360 B1 19850918; CH 641310 B; CH 641310G A3 19840229; DE 3172316 D1 19851024; HK 94687 A 19871218; JP S5724883 A 19820209; SG 67187 G 19880916; US 4479722 A 19841030
DOCDB simple family (application)
EP 81810235 A 19810610; CH 445380 A 19800610; DE 3172316 T 19810610; HK 94687 A 19871210; JP 8877881 A 19810609; SG 67187 A 19870818; US 27426481 A 19810616