Patent ID: 9210508
Filing Date: 2015-12-08
Classification: H04R

Abstract:
1. An integrated phantom-powered inline preamplifier with proximity effect response filtering inside an active ribbon or dynamic microphone casing, the integrated phantom-powered inline preamplifier comprising: a set of input terminals inside the active ribbon or dynamic microphone casing, wherein the set of input terminals are configured to receive a microphone electrical signal from a passive circuit portion within the active ribbon or dynamic microphone casing, and wherein the set of input terminals is operatively connected to a first set of one or more transistors inside the integrated phantom-powered inline preamplifier; a set of output terminals configured to load phantom power and also configured to transmit an amplified signal from the microphone electrical signal, wherein the set of output terminals is operatively connected to a second set of one or more transistors inside the integrated phantom-powered inline preamplifier; a phantom-powered preamplifier gain circuit comprising the first set of one or more transistors, the second set of one or more transistors, and/or a resistor-capacitor network that includes a resistor and an RF shunt capacitor; a full frequency response and low frequency response reduction and high pass filtering adjustment interface, with a “music” mode that activates the full frequency response, and a “voice” mode that activates the low frequency response reduction and high pass filtering; and a high-pass filter circuit operatively connected to the full frequency response reduction and low frequency response adjustment interface, wherein the high-pass filter circuit is integrated inside the active ribbon or dynamic microphone casing.