Csem Centre Suisse D'electronique Et De Microtechnique Sa

Centre Electronique Horloger S. A.

Semtech Corporation

Michel Alain Chevroulet

Viron Teodoridis

Jean-Michel Mayor

Yves De Coulon

Ted Smith

This micromachined inductive sensor is used to detect, without contact and through the intermediary of a radiated alternating magnetic field, the position and/or the movement of an object capable of modifying this magnetic field and including for this purpose at least one discontinuity. The sensor comprises a planar transmitter coil for transmitting the alternating magnetic field and planar receiver coils located so as to sense a determined portion of said field and the variations of this magnetic portion sensed due to the discontinuity of the object. The coils are disposed on a common substrate and obtained by selective photolithography operations. According to the invention, in the areas of the substrate in which the transmitter coil is contiguous with a receiver coil, there is provided at least one shielding band electrically independent of the coils and connected to a reference potential. The shielding band is formed from a metallization layer deposited on the substrate.

Micromachined inductive sensor having capacitively decoupled coils

In an integrated circuit, a central reference generator (3) generates a setpoint signal determining the operating characteristic required to be common to some of the functional components of the circuit. Lines (4-1 to 4-n) distribute this signal among units of the circuit, each unit comprising a functional Component (2-n). In each unit, a local adjustment circuit (5-n) receives the setpoint signal and generates an adjustment value. Correction circuitry adjusts the operating characteristic of a device in the local adjustment circuit (5-n) as a function of the adjustment value. The device is placed in proximity to the functional component and configured in such a way that the operating characteristic which is thus imposed on the device is also imposed on this component.

Integrated circuit in which some functional components are made to work

A watch (31) comprises an horological movement (32) associated with a liquid crystal display arrangement (34) located under the crystal (8) of such watch. The watch (31) comprises an active display arrangement (36) located within the watch case (4). In addition, the watch comprises a mirror (40) arranged in the back cover (6) of the watch and an enlarging lens (38) arranged under the crystal (8). The optical elements are arranged so that the light coming from the active display arrangement (36) is reflected by the mirror (40) in the direction of the enlarging lens (38).

Watch comprising a display arrangement associated with an optical

The device for measuring a force, and notably an inertial force corresponding to an acceleration, comprises a capacitive detector comprising two capacitors, the difference between the capacitances of which is a function of the force measured. The measuring device further comprises an electronic circuit permitting the creation of an output signal determined by a comparison of the value of the two capacitances. The signal is created in the form of a digital signal having a modulated pulse density.

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Neuchatel, Switzerland

Michel Alain Chevroulet