Patent ID: 9407356
Filing Date: 2016-08-02
CPC Classification: H04B,H04M,H04R

Claim Text:
1. A digital audio system of an aircraft comprising: one or more pieces of audio equipment, one or more pieces of radio equipment, an audio-terminal and a radio-terminal installed, respectively, in a proximity of the pieces of audio and radio equipment, the audio equipment, the radio equipment and the audio-terminal and radio-terminal being connected to a digital communications network, each piece of audio equipment comprising a microphone, a headset for receiving analog audio messages and an actuator of a discrete signal for emitting analog audio messages, each piece of radio equipment comprising transmission/reception means for an analog audio message including a transmitter, a receiver with a reception potentiometer, a control unit and a switch for controlling a signal addition from the transmitting line to the receiving line, each audio-terminal comprising adjustment and conversion means of digital messages in analog messages and of analog messages in digital messages, a digital messages management unit and a digital signal processor, each radio-terminal comprising adjustment and conversion means of analog messages into digital messages and of digital messages into analog messages, a digital messages management unit and a digital signal processor, wherein the digital messages management unit of each radio-terminal includes a computer program adapted to generate a side tone of an analog audio message emitted by the microphone and to activate/deactivate its sending to the headset when the radio-terminal in the proximity of the radio equipment to which said audio analog message is sent detects a successful transmission and generates a command of activation/deactivation of said side tone depending on the transmission/non-transmission of the analog audio message by the radio equipment.