Multi-functional electronic watch
AssigneeCentre Electronique Horloger S.A.
InventorsJean Felix Perotto, Eric Vittoz
Life of this patent
Estimating the term…
Abstract
A multifunctional wrist watch combining the functions of time-indication with other functions, for example a calculator. The watch has a glass in which pick-ups are provided for detecting the passage of a finger of a user over the surface of the glass and recognition circuits for converting the trace detected into a logic signal for processing by a calculator circuit provided in the watch case. The output of the calculator is then displayed by the electro-optical display on the watch. The detection and recognition facility may also be utilized for correction of the date and time settings of the watch.
Claims13
A multi-functional electronic watch, comprising an electro-optical digital display means;
- circuit means coupled to said display means for measuring time;
- a data processing circuit coupled to said display means;
- a writing surface including a plurality of pick-up electrodes embedded in the glass of said watch, said pick-up electrodes delivering a series of signals corresponding to the given order in which each of them is excited when an alpha-numerical symbol is traced analogically on the surface of said glass, said series of signals forming a combinatory code;
- and interface means connecting said pick-up electrodes to said data processing circuit for recognizing said combinatory code and supplying data signals to said processing circuit, said data signals corresponding unequivocally to said symbol.
Dependencies are inferred from the claim text.