Abstract: The invention relates to a sound-reproducing transducer (60) connected to a printed circuit (50). This transducer (60) has the shape of a hollow cylinder whose cylindrical wall (66) delimits two circular faces, one front face (66c) and one rear face (66d) that are opposed and planar. The transducer (60) comprises at least one diaphragm (64) that makes it possible to convert electric signals into sound waves and conversely. This diaphragm (64) is a circular membrane parallel to the front face (66c) and rear face (66d) of the transducer (60). The diaphragm (64) delimits two distinct volumes in the transducer (60), the first volume being bordered on one side by the circular face (66c) of the transducer (60) and on the other by the diaphragm (64) while forming a front acoustic cavity (61), and the second volume being bordered on one side by the circular face (66d) of the transducer (60) and on the other by the diaphragm (64) while forming a rear acoustic cavity (62).

Abstract: A fixed electrical connection member of an electronic device for connecting one or more electrical conductors of the electronic device to a mobile electrical connection member external to the electronic device includes, on the side external to the electronic device, 2N conductive terminals disposed on a front face and connected, inside the electronic device, to the electrical conductor of the electronic device, and aligned in pairs. The N pairs are aligned to form two rows of N terminals that are symmetrical with respect to a longitudinal axis. Each terminal of a pair is electrically connected to the terminal of the adjacent pair on the other side of the longitudinal axis.

Abstract: The invention concerns the devices which make it possible to connect a plug (116) to a radio frequency circuit (207) whilst simultaneously breaking the connection from this radio frequency circuit to an antenna circuit (201). It consists in using the ends of the earth plane (203) and of the antenna circuit (201) in order to directly establish respectively contact between the external casing (116) of the plug with the earth plane (203) when the plug is connected, and contact between a spring connector (204) itself connected to the radio frequency circuit (207) and the antenna circuit (201) when the plug is disconnected. This spring connector (204) is held captive in a cylindrical protrusion (213) on the support (202) for the antenna circuit and the earth plane.

Abstract: A fixed electrical connection member of an electronic device for connecting one or more electrical conductors of the electronic device to a mobile electrical connection member external to the electronic device includes, on the side external to the electronic device, 2N conductive terminals disposed on a front face and connected, inside the electronic device, to the electrical conductor of the electronic device, and aligned in pairs. The N pairs are aligned to form two rows of N terminals that are symmetrical with respect to a longitudinal axis. Each terminal of a pair is electrically connected to the terminal of the adjacent pair on the other side of the longitudinal axis.

Abstract: In a structural arrangement for radio communication terminals comprising a casing in which are disposed at least a first sound transducer having an earpiece function and a second sound transducer having a loudspeaker function, the two transducers being respectively connected to two opposite faces of a printed circuit card, and each transducer comprising at least one resonating membrane vibrating in a front acoustical cavity and a rear acoustical cavity. The rear acoustical cavities of the transducers communicate with each other via orifices formed in the printed circuit card to form a twin rear acoustical cavity.

Abstract: A spring connector for connecting at least one electrical track of a display screen with an electrical circuit also holds the display screen in position. A flexible metal foil forms a spring and a plastics material film which includes at least one electrical track has substantially the same shape as the metal foil and is fixed to one face of the metal foil. At least one of the tracks of the plastics material film connects tracks of the display screen with the electrical circuit.

Abstract: The invention concerns the devices which make it possible to connect a plug (116) to a radio frequency circuit (207) whilst simultaneously breaking the connection from this radio frequency circuit to an antenna circuit (201).

Abstract: The invention relates in particular to a fixed electrical connection member for use on an electronic device to connect an electrical conductor of the device to a mobile electrical connection member outside the electronic device, wherein the fixed electrical connection member includes, on a front face adapted to be disposed on the outside of the electronic device, a conductive circular track connected to said electrical conductor of the electronic device, inside the electronic device, on a rear face, by an electrical conductor disposed in a bore passing through the fixed member.

Abstract: The invention relates to microchip card readers in mobile telephones. A device for inserting and retaining a microchip card consists in a partial depression of the upper portion of the shielding cover, with the exception of a tongue. The depression has an opening for the spring contacts to pass through. The distance between the plane of the spring contacts and the tongue allows the microchip card to pass through it in order to insert it and retain it in the depression.

Abstract: The present invention provides an actuator member of the multifunction key type, in particular of the navigation key type, consisting of a rigid button mounted with limited mobility and a separate detector component having a plurality of active sites. The button has underside formations each intended to come into contact with one of the active sites. Three active sites are disposed at the corners of a triangle, wherein a non-active bearing site is disposed between two of the active sites, alone or in conjunction with the third active site, so as to allow tilting of the button by pivoting on the non-active site toward one of the first two active sites situated on respective sides thereof until the corresponding formation comes into contact with one of the active sites to activate it, for example by compressing it or depressing it.

Abstract: A press switch comprises an insulating substrate with two conductive zones suitable for triggering first and second functions, respectively. The first zone has at least two portions that are electrically insulated from each other. A spring has two contact zones, one of which includes at least two regions that are electrically interconnected and suitable for making contact with respective portions. In a rest position, the spring makes contact with at least part of the first conductive zone, and no function is performed. In a first actuated position, a first amount of pressure applied to the spring causes it to make full contact with the first conductive zone, thereby causing the first function to be performed. In a second actuated position, a second amount of pressure causes contact to be made by each contact zone with the respective conductive zone, and the said function is performed.

Abstract: The invention relates in particular to a fixed electrical connection member for use on an electronic device to connect an electrical conductor of the device to a mobile electrical connection member outside the electronic device, wherein the fixed electrical connection member includes, on a front face adapted to be disposed on the outside of the electronic device, a conductive circular track connected to said electrical conductor of the electronic device, inside the electronic device, on a rear face, by an electrical conductor disposed in a bore passing through the fixed member.

Abstract: The present invention provides an actuator member of the multifunction key type, in particular of the navigation key type, consisting of a rigid button mounted with limited mobility and a separate detector component having a plurality of active sites, said button having on its underside formations each intended to come into contact with one of the active sites of said [sic]. Which member includes three active sites which are disposed at the corners of a triangle and wherein a non-active bearing site disposed between a first two of said active sites, alone or in conjunction with the third site, authorizes tilting of said button by pivoting on said non-active site toward one of said first two active sites situated on respective sides thereof until the corresponding formation comes into contact with one of said active sites to activate it, for example by compressing it or depressing it.

Abstract: A spring connector for connecting at least one electrical track of a display screen with an electrical circuit also holds the display screen in position. A flexible metal foil forms a spring and a plastics material film which includes at least one electrical track has substantially the same shape as the metal foil and is fixed to one face of the metal foil. At least one of the tracks of the plastics material film connects tracks of the display screen with the electrical circuit.

Abstract: A plug for connection by pressure contact is provided with metal zones. The metal zones are brought into contact with metal zones of a socket. The plug is secured to the socket by catches. The catches are situated in intermediate positions relative to two reaction forces exerted by the socket. At least one of the reaction forces is resilient. Accordingly, the combined pressure and insertion connectors enable at least two connections to be made simultaneously from the socket to two different items of equipment.

Abstract: In an insertion connection assembly, a wall of a cavity of a socket which receives a plug to be inserted is provided with a tongue. The tongue is designed to lock resiliently in a plane notch on the plug. By making such provision, the sides of the connector are left free to form guides for inserting the plug.

Abstract: To improve the connection possibilities offered by a socket for receiving mobile equipment, provision is made for the socket to accommodate a pressure connection plug and an insertion connection plug simultaneously. The two plugs have complementary profiles in order to enable them to be received simultaneously in this way.

Abstract: The electrostatic protection consists in a protective sheet incorporated in the set between the shell and the elements to be protected, the sheet comprising a conductive layer and an insulating layer, the sheet being cut to the appropriate shape, and being made of materials, such as a foam made of a plastics material, that make it easily formable so that it fits the shape of a space left empty to receive it inside the set. The conductive layer is a thin sheet of metal or of metal fibers.

Abstract: A radiotelephone has a housing for receiving an adaptor member for adapting an antenna plug to a socket. The adaptor member has an electrical connection and mechanical coupling end designed to cooperate with the antenna plug and an at least electrical connection arrangement adapted to cooperate with the socket. The socket comes into electrical contact with the connection arrangement purely by axial insertion of the adaptor member into the housing. The adaptor member is held in the housing by a manually operable holding device to provide an electrical connection between the antenna plug and the socket. The system may be used to connect any commercially available antenna to a specific radiotelephone and is compatible with a large number of antenna attachment/detachment maneuvers.

Abstract: A switch knob has a mobile first part adapted to switch from one connection to another by rotation and a second part fixed to a support of the device on which the knob is mounted by an assembly device and a clamping device. The assembly device comprises two prism-shape members linked by a ring in two parts each including a hinge and is disposed between the second part and the support in a housing of the support provided for this purpose. The top of the prism-shape members faces towards the interior of the housing and their bases outside the housing so that clamping of the clamping device, by applying a force to the bases of the prism-shape members, moves the members towards each other and locks the second part to the support. Movement of the prism-shape members towards each other is facilitated by the hinges of the ring.