Abstract: An audio appliance includes two external connections for connection to external loudspeakers, and includes means for establishing an electrical signal between the external terminals that is representative of an audio source in order to inject an excitation electric current into each external loudspeaker. Means are provided for incorporating a component at a “detection” frequency that is situated outside the audible spectrum in the electrical signal that is established between the external terminals, together with means for detecting an electric current flowing between the external terminals and having a frequency corresponding to the detection frequency. This is applicable in particular to systems comprising a mobile appliance and a fixed docking station incorporating a woofer and designed to receive the mobile appliance.

Abstract: The present invention relates to the field of telephony and specifically to a method for correcting the degradation of telephone signal quality caused by analogue lines. The invention describes managing, via the receiver, a specific correction of telephone signal degradation caused by the length of the analogue line between the parties. Said line length between the receiver and the telephone switchboard to which said receiver is connected is stored in the receiver. Advantageously, the line lengths between the receiver of the called party and the corresponding switchboard are stored, for example in the director of the apparatus. During the call, said line length is taken into account by a specific correction means for said correction inside the receiver.

Abstract: A wireless telephone handset includes a processing unit having associated therewith a microphone, an earpiece, and a loudspeaker mounted on a wall of an enclosure provided with a vent having dimensions adapted to co-operate with the enclosure to form a Helmholtz resonator.

Abstract: A loudspeaker mounting frame (1) for an electronic appliance has a central opening for receiving a loudspeaker membrane (24), and a plurality of through holes (11) surrounding said central opening for receiving fixing means (25). The through holes (11) are tapered so as to accommodate the fixing means (25) in varying orientations. Spherical bosses (6) surrounding said through holes (11) are formed at a rear side (5) of the mounting frame (1).

Abstract: An electronic device such as a TV set has a casing (11), a loudspeaker unit (18, 24), a first surface (21) of which faces a wall (11) of the casing. Retaining means (17) are formed in the casing so as to face a second surface (20) of the loudspeaker unit (18, 24). The loudspeaker unit (18, 24) is received between the wall (11) and the retaining means (17) of the casing, and there are at least one first vibration absorbing body (19) forming a spacer between the first surface (21) and the wall (11) and at least one second vibration absorbing body (19) forming a spacer between the second surface (20) of the loudspeaker unit and the retaining means (17).

Abstract: The acoustic enclosure comprises a box, on which is mounted at least one electro-acoustic transducer, and a vent which together with the box produces a bass-reflex system with a specified bass-reflex resonant frequency. The vent comprises means of attenuation at the bass-reflex resonant frequency. Included is an audiovisual apparatus comprising a display device and such an enclosure.

Abstract: A loudspeaker mounting frame (1) for an electronic appliance has a central opening for receiving a loudspeaker membrane (24), and a plurality of through holes (11) surrounding said central opening for receiving fixing means (25). The through holes (11) are tapered so as to accommodate the fixing means (25) in varying orientations.

Abstract: An electronic device such as a TV set has a casing (11), a loudspeaker unit (18, 24), a first surface (21) of which faces a wall (11) of the casing. Retaining means (17) are formed in the casing so as to face a second surface (20) of the loudspeaker unit (18, 24). The loudspeaker unit (18, 24) is received between the wall (11) and the retaining means (17) of the casing, and there are at least one first vibration absorbing body (19) forming a spacer between the first surface (21) and the wall (11) and at least one second vibration absorbing body (19) forming a spacer between the second surface (20) of the loudspeaker unit and the retaining means (17).

Abstract: The present invention relates to an acoustic enclosure (2) comprising a box (8), on which is mounted at least one electro-acoustic transducer (4), and a vent (16) which together with the box (8) produces a bass-reflex system with a specified bass-reflex resonant frequency (F0). The vent (16) comprises means of attenuation at the bass-reflex resonant frequency (F0).