Eta Sa Fabriques D'ebauches

Gay Freres Vente Et Exportation S.a.

Other

Gay Freres S. A.

Jean-Claude Berney

Watch comprising sensing and saving means in case of insufficiency of

Electronic memory device having a non-peripheral contact for reading and

An electronic watch with a minute-repeater function wherein the strike is accompanied by characteristic movements of the hands. In a simple alternative embodiment, the watch comprises two independent hour and minute hands, driven by their own motor. When the minute-repeater function is activated, the two hands come first of all to 0, then return to their initial position making movements corresponding to each type of strike, hour strike=+1 hour, 15 minutes strike=+15 minutes, etc.

Electronic watch with minute-repeater function

In a method for bidirectional serial data transmission between an integrated memory circuit and a reading/writing circuit which are separated from each other, an integrated memory circuit having two electrical contact points and a reading/writing circuit with a connecting element having two contacts are provided. Data transmission is enabled by connecting the two-contact connecting element to the two electrical contact points of the integrated memory circuit. Data are transmitted from the reading/writing circuit to the integrated memory circuit by superimposing voltage pulses on the voltage supplied to the integrated memory circuit. Data are transmitted from the integrated memory circuit to the reading/writing circuit by modulating supply current consumed by the integrated memory circuit. The integrated memory circuit is driven with an internal clock output and signals corresponding with data to be transmitted to the reading/writing circuit. The generation of cycles of voltage pulses is synchronized in the reading/writing circuit with received cycles of supply current modulations to thereby synchronize the transmission of data between the reading/writing circuit and the integrated memory circuit.

Transmission system

The memory device according to the invention has a rigid metallic part (1) ensuring a mechanical and electrical connection with a reading system. It incorporates an integrated EEPROM circuit with reading/writing by a power supply located internally of a hollow contact connected to the first power supply terminal of the IC and serving as a protective case. Everything is installed on a support (3) fixed in a slot (2) of the metallic part (1), which is connected to the second power supply terminal of the IC. It is possible to install several IC's in the same metallic part, so as to produce a multifunction device.

Electronic label and carriers therefor

'Golf Counter' device and watch combined with such a device

Watch with date dial

Growing community of inventors

Les Charbonnieres, Switzerland

Jean-Claude Berney