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Digital communication controller and control method

A control method and controller technology, which is applied in the field of digital communication, can solve problems such as the inability to filter breathing sound, and the analog communication controller is susceptible to electromagnetic interference, so as to achieve the effect of improving the anti-whistling ability

Active Publication Date: 2017-05-24
CHENGDU AEROSPACE COMM EQUIP CO LTD
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Problems solved by technology

[0004] The purpose of the present invention is to provide a digital communication controller and a control method for the problems existing in the prior art, so as to solve the problem that the existing analog communication controller is susceptible to electromagnetic interference and unable to filter breathing sound

Method used

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Embodiment

[0033] The digital communication controller of the present invention is mainly equipped with Jiaojiu aircraft, which not only collects all the audio signals of the aircraft, but also cooperates with the radio station to carry out air-to-air and air-to-ground communications. The digital communication controller receives ten channels of audio signals and performs digital processing on the ten channels of signals, and the processed voice signals are sent to the pilot. At the same time, it also performs digital processing on the voice signals to be transmitted to suppress breathing sounds and mute processing. Compared with the previous analog communication controller, the digital communication controller has the following different functions:

[0034] Compress the audio signals received by the ten channels separately to adapt to a wider range of audio signals;

[0035] Perform digital mute, volume control, volume display, and digital combination processing on the audio signals rec...

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Abstract

The invention provides a digital communication controller and a control method. The controller is mainly composed of a display board, an audio board and a digital processing board, wherein the audio board comprises a power circuit, an audio receiving amplifier, a microphone signal compression amplifier, a volume gating and control digital output circuit and a switching circuit. Received audio signals are subjected to voltage and power amplification through the audio receiving amplifier and are then converted to differential output, differential input is converted to single-end input for received microphone signals through the microphone signal compression amplifier, and compression amplification and transmission out are then carried out. The communication controller is not subjected to electromagnetic interference, breath sounds can be filtered well, and the speech definition is enhanced.

Description

technical field [0001] The invention relates to the field of digital communication, in particular to a digital communication controller and a control method. Background technique [0002] The flexibility requirements for voice, navigation, and alarm signal volume control on airborne equipment are getting higher and higher. Not only is the communication controller required to be small in size, light in weight, wide in working environment temperature, and stable and reliable in performance, but it is also required to have the function of digital processing of voice to adapt to the harsher flight environment. [0003] However, the communication controller used on Jiaojiu aircraft is an analog communication controller. The quality of voice communication is very good without interference. However, there are more and more electronic devices on the aircraft, and the electromagnetic environment is getting worse. Complicated, analog communication controllers can no longer meet the r...

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Application Information

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IPC IPC(8): H04R3/00
CPCH04R3/00H04R2430/00
Inventor 王昱孔辉余擎阳何宁贾巧伶
Owner CHENGDU AEROSPACE COMM EQUIP CO LTD
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