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Priority to ES120102UpriorityCriticalpatent/ES120102Y/en
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Publication of ES120102YpublicationCriticalpatent/ES120102Y/en
Telephone amplifier characterized essentially by the fact of being constituted by a support structure on which the handset is placed, said structure comprising an acoustic bell next to the microphone which transmits the sounds to said microphone and because an inductive sensor is arranged under the earphone that receives the sound and transmits it to an electronic amplifier and this to a loudspeaker having arranged the sound input by the bell and the output of sounds by the loudspeaker so that they present the minimum possibility of coupling. (Machine-translation by Google Translate, not legally binding)
Improvements in electro-acoustic transducer which is incorporated in a capsule and comprises a transistor amplifier particularly for telephone handsets
Improvements in microphones, particularly for duplex installations with speakers and microphone (Machine-translation by Google Translate, not legally binding)