125results about "Gear train" patented technology

Multilayer ceramic chip capacitors which satisfy COG requirements and which are compatible with reducing atmosphere sintering conditions so that non-noble metals such as copper and copper alloys thereof may be used for internal and external electrodes are made in accordance with the invention. The capacitors exhibit desirable dielectric properties (high capacitance, low dissipation factor, high insulation resistance), excellent performance on highly accelerated life testing, and very good resistance to dielectric breakdown. The dielectric layers comprise a composite oxide formed by calcining rare earth titanates, barium titanate, together with other metal oxides such as MgO, CaO, ZnO, MnO₂, ZrO₂, SiO₂, Ga₂O₃, Nd₂O₃, Nb₂O₅, and Y₂O₃.

The part is made from a plate (1) made of a brittle material, such as glass, quartz or silicon and includes at least one aperture (2, 4, 6) for driving in a shaft (5). This aperture is characterized in that it includes alternately rigidifying and positioning zones (8) and resilient deformation zones (10). Application to securing a shaft onto the moving parts of a timepiece movement.

We describe a multi level flash memory device and program method. The multi level flash memory device includes a plurality of memory cells, each storing an amount of charge indicative of more than two possible states and control circuitry coupled to the memory cells. The control circuitry to applying a programming voltage alternating with a verification voltage to the memory cells until all are at a desired state and applying at least one additional programming voltage to the cells in a highest state without applying a verification voltage. The method includes applying at least one programming pulse to the cells, verifying that each cell has reached the desired state, selecting the cells that are programmed for a highest state, and applying at least one additional programming pulse to the selected cells without further verifying their state.

The invention proposes an analogue display member (10) fitted to a timepiece, of the type including a main body in which an arbour hole is arranged, characterized in that the main body is made of silicon based crystalline material. The invention also proposes a timepiece provided with such a display member (10). The invention also proposes a method of fabricating analogue display members (10) to be fitted to timepieces, each analogue display member (10) including a main body, characterized in that it includes at least one step of micro-machining a wafer of silicon based crystalline material to form at least one main body in said material.

Platform escapement assembly (1) comprising a balance (3) with a roller (4), a balance spring (5), and escape wheel (6) controlled by a pallet lever (7) cooperating with said roller (4).

An escapement bridge (10) comprises, on both sides of a bottom surface (11), first (20) and second (21) spacers respectively comprising first (22) and second (23) bearing surfaces for receiving first (24) and second (25) complementary surfaces of a balance cock (30) on both sides of a top surface (11A), and said top surface (11A) is more flexible in bending than said bottom surface (11), so as to allow mobility, as a result of a perpendicular force applied to said top surface (11A), of said first complementary surface (24) relative to said first bearing surface (22) when said second complementary surface (25) is locked in position on said second bearing (23) surface.

Assembly element (18) made in a plate of brittle material, including an aperture (32) provided for the axial insertion of an arbour (26), the inner wall (33) of the aperture (32) including elastic structures (34), which are etched into the plate to grip the arbour (26) radially. Each elastic structure (34) includes a first rectilinear elastic strip (L₁) which extends along a tangential direction relative to the arbour (26). According to the invention, each elastic structure (34) is formed by a radial stack of several parallel elastic strips.

The invention also proposes a timepiece fitted with this assembly element (18).

Timepiece brake wheel assembly, including an arbor comprising a first surface cooperating, to guide pivoting, with a second surface of a wheel pivotally mounted on the arbor around a pivot axis, this second surface including one braking surface comprised in a brake shoe subjected to the action of a first spring, in one-piece with the wheel, and arranged to exert a radial force with respect to the pivot axis on the first surface, this assembly including notches forming a comb or a toothing, arranged to retain a finger-piece for discrete value adjustment of the friction exerted by the braking surface on the first surface, this assembly being arranged to be included in a timepiece mechanism or in a timepiece.

The invention relates to a system (9) for securing a part (7) made of a material with no usable plastic domain, including a securing device (11) on an arbour (3) passing through a hole (8) in said part. According to the invention, the securing device (11) includes a recess (4) that communicates with the hole (8) in said part and securing means (6) attached to the arbour (3) and at least partially matching the shape of the recess (4), so as to make the movement of the part (7) integral with that of the arbour (3).

The invention concerns the field of timepiece manufacture.

An audio control device for use by one or two individuals lying in bed. The device includes a flat outer housing with two display surfaces aligned in opposite directions to face the two individuals when placed between them. Located inside the outer housing are two audio control units. Each audio control unit is connected to at least one input port, and an audio output port. An earphone, pillow speaker or a speaker wing component may be attached to each output port. An external audio source may be connected to each input port. Each control unit may include an illuminated display is mounted on each display surface. A volume switch is provided that enables the user to adjust the volume of sound heard. Mounted inside the outer housing is an optional internal audio source and an optional recording/playback unit and one or more mute buttons.

A retrograde display mechanism including a main plate and a rack pivoting on a first arbor about a first axis centring its toothing, and including a sensing element following a cam pivoting on a second arbor about a second axis, the position of the first pivot axis and/or of the second pivot axis is adjustable with respect to the main plate with an adjustment plate carrying the first arbor and/or respectively the second arbor, and movable with at least one degree of freedom with respect to the main plate whose position with respect to the main plate is adjustable by an adjustment control device or an eccentric screw secured to the main plate and cooperating with a notch in the adjustment plate, or vice versa.

An analog electronic timepiece includes a stepping motor, a gear train mechanism having gears, a pointer, a drive control unit, a control content changing unit, and a pointer position adjustment unit. If an operational command to rotate the pointer to a different moving target position is obtained while an operational control for rotating the pointer to a certain moving target position is in progress, the control content changing unit terminates the control and changes a control content to an operational control according to the command. If the reverse rotation driving operation is being performed, the pointer position adjustment unit performs an adjustment operation for removing shifting between a predicted position of the printer and an actual position of the pointer which occurs because of rotational input from the stepping motor not being transmitted to the pointer due to gaps relating to the mesh of the gears.