Isolating device of active noise-reducing system
A technology of active noise reduction and isolation device, applied in transmission systems, transmission noise suppression, electrical components, etc., can solve the problems of reducing noise signal processing effect, unclear signal, affecting the identifiability, authenticity and quality of the final signal. , to achieve the effect of improving effectiveness and reducing the possibility of receiving
Inactive Publication Date: 2013-06-12
拉迪
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However, due to the unclear signal between the surrounding noise signal and the identifiable signal, part of the identifiable signal 110 will be captured by the noise signal detector 150, which will affect the processing effect of reducing the noise signal, and further affect the final signal. Distinction, authenticity and quality
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[0023] Preferred embodiments of the present invention are described in detail below.
[0024] The active noise reduction system isolation device provided by the present invention, such as figure 2 As shown, it is arranged on a body, and an audio signal detector 130 and a noise signal detector 150 are arranged on the body. These two detectors are arranged in a direction away from the pickup direction, facing different directions, and the The audio signal detector 130 is arranged towards the identifiable audio signal source 100 for simultaneously receiving the useful identifiable signal 110 and the surrounding noise signal 120, and the noise signal detector is specially used for receiving the surrounding noise signal 140, The audio signal detector 130 and the noise signal detector 150 are simultaneously connected to an active noise reduction system circuit 170, and the active noise reduction system circuit 170 is used to compare the identifiable signal detected from the audio s...
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The invention discloses an isolating device of an active noise-reducing system. The device is arranged on a main body, a sound signal detector and a noise signal detector are arranged on the main body in the way that the pickup directions are opposite and are connected to an active noise-reducing system circuit, wherein the active noise-reducing system circuit is used for eliminating noise signals which are detected by the noise signal detector from identifiable signals detected by the sound signal detector; and an isolating plate device used for isolating signals is arranged between the sound signal detector and the noise signal detector. The probability that the identifiable signals are received by the noise signal detector is prevented and reduced, so that the effectiveness that the active noise-reducing system uses the noise signals to actively reduce noise and identify the sound signals is improved.
Description
technical field [0001] The invention relates to an active noise reduction circuit device, in particular to an improvement of an isolation device of an active noise reduction system. Background technique [0002] The active noise reduction circuit device in the prior art is mainly realized by a processing circuit with an active noise reduction function, such as figure 1 As shown, it is the microphone of the existing known main drive noise reduction circuit, which is usually used in the communication system, while transmitting the identifiable signal, the identifiable signal detector can detect and transmit various surrounding noises . Therefore, the signal transmitted by the discriminable signal detector is mixed with the discriminable signal to be transmitted (signal to be transmitted) and noise. This will impair the receiver's intelligibility, fidelity and quality of the signal. The resulting lack of signal will likely cause displeasure to the receiving party. [0003] ...
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IPC IPC(8): H04B15/00
Inventor 拉迪大汉黄光强哈桑
Owner 拉迪