Inventor: Fernand Chetelat

Address: Cortaillod, CH
No. of patents: 4
Last patent issue date: 05/15/1979

Number	Title	Issue Date
4154053	Electronic timepiece having an adjustable rate of division and method for its manufacture An internal correction circuit is provided to correct the timepiece error caused by the crystal oscillator frequency changes. The timepiece operates by frequency dividing the oscillator frequency to obtain a predetermined operating frequency. The correcti...	05/15/1979
4094138	Electronic chronograph The chronograph comprises a device allowing to memorize at least two lapses of time and a subtraction device to effect the absolute difference between two lapses of time or time intervals which are memorized and preselected. The subtraction device include...	06/13/1978
4040245	Electronic watch An electronic watch having an alpha-numeric display for displaying the time in seconds, minutes and hours and the date and day of the week. The date and day of the week is displayed in an abbreviated form and the language used for the display can be optio...	08/09/1977
4011557	Device in a time piece for feeding an electro-luminescent display It is known that an electro-luminescent display increases its light emitting efficiency with the current through it. Such a display in a watch run from a small battery, is fed by short impulses of high-intensity current by means of discharges from two cap...	03/08/1977

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