A loudspeaker mounting frame (1) for an electronic apppliance 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) ar...

The invention relates to a method and an arrangement for a replay or recording appliance for optical recording media having an inclination control system for vertical alignment of the scanning beam with respect to optical recording media. In order to exclu...

A process allows the relative locating of a first electrical appliance and a second electrical appliance by the measurement of a first number of alternations or of electrical periods by the first electrical appliance from the energizing of the said first p...

The present invention relates to a device and a method for electrically recognizing if a battery is of a rechargeable or non-rechargeable type. The invention is also related to a portable electronic device equipped with a charging device according to the i...

The invention relates to a battery discharger comprising a controlled switch (46) which is conductive for discharging a battery when the voltage of this battery is greater than a first reference voltage (Vr1). The controlled switch is periodically opened a...

The invention relates to a battery discharger comprising a controlled switch (46) which is conductive for discharging a battery when the voltage of this battery is greater than a first reference voltage (Vr1). The controlled switch is periodically opened a...