Patent ID: 11937045
Assignee: nan
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 9:
10. A headphone attachment configured to be installed on a headphone/speaker having an earpad configured to surround an auricle of the user using the headphone/speaker, and to control localization of an audio image in a space between the headphone/speaker and the auricle, the headphone attachment comprising:
a rear insulating plate disposed within an inner periphery of the earpad to be at a first position between a rear of the auricle and the diaphragm, inclined with respect to the diaphragm, and configured to
insulate a rearward sound radiated toward the auricle from the diaphragm as an acoustic radiation surface of the headphone/speaker at the rear of the auricle, and
reflect the rearward sound back toward a front of the auricle, wherein the front of the auricle is defined as a side with a face of the user; and

a reflecting plate disposed within the inner periphery of the earpad to be at a second position between the front of the auricle and the diaphragm, and configured to
reflect (i) the reflected rearward sound reflected by the rear insulating plate, and (ii) a forward scattering sound radiated from the diaphragm at the front of the auricle to be transmitted away from the auricle, and
guide each of the reflected rearward sound and the reflected forward scattering sound, as a reflected forward sound, toward the external acoustic meatus of the auricle from the front of the auricle.