Patent ID: 9554214
Date: 2017-01-24
CPC Classifications: B81B,H04R

Claim:
1. A microphone, the microphone comprising: a base; a micro electro mechanical system (MEMS) device disposed on the base; a front end processing apparatus disposed on the base and coupled to the MEMS device, the front end processing apparatus configured to convert analog signals received from the MEMS device into digital signals; and a DSP apparatus coupled to the front end processing apparatus, the DSP apparatus being a digital programmed device with a computer memory, the DSP apparatus configured to process the digital signals received from the front end processing apparatus, wherein the MEMS device, the front end processing apparatus, and DSP apparatus are enclosed within a single microphone enclosure or assembly, wherein during operation the DSP apparatus generates DSP noise, wherein the DSP apparatus includes a noise reduction structure that reduce an amount of the generated DSP noise from reaching or interfering with the operation of the MEMS device or the front end processing apparatus, and wherein the DSP apparatus has multiple layers of materials including a top layer and the noise reduction apparatus is disposed above the top layer.