Patent ID: 7194095
Filing Date: 2007-03-20
Classification: H04R

Abstract:
1. A noise-canceling pickup, comprising a main cylinder body and a rear cylinder body, wherein the main cylinder body has one or more pickups with one or more noise-canceling sensors and/or one or more non-noise-canceling sensors, the main cylinder body has one or more front and/or rear sound inlets on its sidewall, wherein an intersection angle between a direction of an opening of a front sound inlet and a direction of an opening of a corresponding rear sound inlet is within about 0°˜135°; wherein there is provided a diaphragm-stretching ring in the main cylinder body, a division plate with an extrusion at its center portion is placed between a front spacer in front of the diaphragm-tightening ring and a division plate spacer, the extrusion of the division plate is inserted into the diaphragm-tightening ring, with the edge of the extrusion in tight contact with an inner edge of the diaphragm-tightening ring, forming a cavity between the division plate and a vibration diaphragm.