Acoustic sensor system, signal processing system and method, and electronic equipment
An acoustic sensor and processing system technology, applied in the direction of sensors, sensor components, microphones, etc., can solve the problems of high manufacturing cost, high power consumption and large area of acoustic sensor systems, and achieve the effect of reducing power consumption
Active Publication Date: 2021-06-15
芜湖每刻深思智能科技有限公司
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[0004] The present invention provides an acoustic sensor system, signal processing system, method and electronic equipment, which are used to solve the problems of high power consumption, large area and high manufacturing cost of the acoust
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[0050]In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0051] It can be understood that the terms "first", "second", etc. used in the present invention can be used to describe various components herein, but these components are not limited by these terms. These terms are only used to distinguish one component from another. For example, a first MEMS could be termed a second MEMS, and, similarly, a second MEMS could be termed a first MEMS, without ...
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The invention provides an acoustic sensor system, a signal processing system, a signal processing method and electronic equipment, and belongs to the technical field of acoustoelectric signal processing. The acoustic sensor system comprises a first micro electro mechanical system, a first application-specific integrated circuit and an analog signal processor; the first micro-electro-mechanical system transmits collected acoustic signals to the first application-specific integrated circuit, and the first application-specific integrated circuit converts received signals from the first micro-electro-mechanical system into analog electric signals and outputs the analog electric signals to the analog signal processor. The analog signal processor carries out filtering processing or feature extraction on the analog electric signals, then the neural network circuit carries out calculation processing on the analog electric signals, and a processing result is output to a post-stage processing system. The analog signal processor is adopted to directly process the analog electric signal output by the microphone, so the problem of over-high power consumption caused by data conversion of an ADC is solved, and the power consumption, the area and the cost of the intelligent acoustic microphone can be effectively reduced.
Description
technical field [0001] The invention relates to the technical field of acoustic-electric signal processing, in particular to an acoustic sensor system, a signal processing system, a method and electronic equipment. Background technique [0002] A microphone is an energy conversion device that converts an incoming acoustic signal into an electrical signal. Acoustic sensors, that is, MEMS (English: Micro Electrical Mechanical System, Chinese: microelectromechanical system) microphones, rely on their good temperature characteristics, improved noise cancellation performance, good RF (English: Radio Frequency, Chinese: radio frequency) and EMI (electromagnetic Interference) suppression performance, smaller area and other advantages, have been widely used in smart phones, bluetooth headsets. [0003] A MEMS microphone is composed of MEMS and an ASIC (Application Specific Integrated Circuit) chip. The MEMS digital microphone converts the analog signal output by the ASIC chip into...
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Login to View More IPC IPC(8): H04R3/00H04R3/06H04R19/04
CPCH04R3/00H04R3/06H04R19/04H04R2203/00H04R2201/003
Inventor 邹天琦任二祥
Owner 芜湖每刻深思智能科技有限公司