Honeywell International Inc.

Joe Reyes

Ken L Snodgrass

Mark L Goldberg

A communications system having a plurality of radio communication modes with an audio component, the audio component of the radio communication modes being controlled through an audio panel, and a radiotelephony mode with an audio component being controlled by a radiotelephony device, the audio component of the radiotelephony mode having an audio input for supplying audio to the radiotelephony device. The radiotelephony audio component is integrated with the audio panel, by providing an interface between the audio panel and the radiotelephony device, coupling the audio input of the radiotelephony mode to the audio panel, and directing the audio input of the radiotelephony mode to the interface, the interface coupling the audio input of the radiotelephony mode to the radiotelephony device.

Telephony control in the flight deck

Methods and apparatus are provided for handling a STUCK-ON microphone push-to-talk (PTT) switch. The apparatus comprises an input device receiving the PTT output, switches for selecting a radio, and a controller that receives this information and determines whether the PTT switch is STUCK-ON. Until STUCK-ON occurs, the controller passes the microphone signal and a PTT initiated TRANSCVER-ON command to the radio causing it to transmit. When STUCK-ON occurs, the state of the PTT switch is ignored and the transmitter shut off. The status of other PTT switches and radios are not affected. In the method, the active PTT signal results in a TRASNCVR-ON command to the transmitter until a PTT-ON timer reaches a predetermined critical value Tc, whereupon the PTT-ON signal is blocked, the transmitter returned to stand-by and an alarm turned on to warn the pilot of the stuck PTT switch.

Growing community of inventors

Glendale, AZ, United States of America

Joe Reyes