Direct-Radiating Earphone Drivers
Assignee1964 Ears, LLC
InventorsVitaliy Y. BELONOZHKO, Vitaliy GORDEYEV, Christopher E. OGUT
Life of this patent
Estimating the term…
Abstract
A personal listening device including at least one direct-radiating balanced-armature audio transducer and at least one substantially enclosed, indirect-radiating, or tube-coupled balanced-armature transducer. The tube-connected transducer emits sound waves which pass through a hole, slot, tube or bore before entering an airspace near the eardrum of a user, while the direct-radiating transducer emits sound waves directly into the airspace adjacent the indirect-radiating transducer or tube, which airspace is contiguous with the airspace near the eardrum of the user.
Claims20
An audio reproduction device comprising:
- a housing suitable for positioning near a user's outer ear, said housing comprising a protrusion configured to extend at least partially into an outer portion of the user's ear canal and to substantially seal the ear canal;
- a first balanced armature configured to emit first sound waves, said first sound waves conducted to the substantially sealed ear canal by a tube within the protrusion;
- a second balanced armature configured to emit second sound waves, said second sound waves radiated directly into an interior of the housing;
- and
- an electronic crossover network to receive an electrical signal and deliver a first portion thereof to the first balanced armature, and a second portion thereof to the second balanced armature.
An audio reproduction device comprising:
- a housing having a protruding stem suitable for entering and substantially sealing to a user's outer ear canal, an interior volume of said housing and protruding stem thus forming a substantially closed airspace adjacent the user's eardrum;
- a first balanced-armature audio transducer module to emit first sound waves, said first sound waves exiting the transducer module through an opening in a casing thereof;
- a second balanced-armature audio transducer to emit second sound waves, said second sound waves emitted directly into the interior volume of the housing from a diaphragm that is exposed and visible;
- and
- an electronic crossover network to receive an electrical signal and deliver a first portion thereof to the first balanced-armature audio transducer module, and a second portion thereof to the second balanced-armature audio transducer.
a diaphragm of the first balanced-armature audio transducer is visible through the opening in the casing.
An audio reproduction device comprising:
- a housing having a protruding stem suitable for entering and substantially sealing to a user's outer ear canal, an interior volume of said housing and protruding stem thus forming a substantially closed airspace adjacent the user's eardrum;
- a first balanced-armature acoustic transducer to emit first sound waves from a radiating diaphragm and into an enclosed shell, said first sound waves exiting the first balanced-armature acoustic transducer through an opening in the enclosed shell;
- a direct-radiating balanced-armature acoustic transducer to emit second sound waves, said second sound waves emitted into the interior volume of the housing adjacent the first balanced-armature acoustic transducer;
- and
- an electronic crossover network to receive an electrical audio signal and deliver a first portion thereof to the first balanced armature acoustic transducer and a second portion thereof to the direct-radiating balanced armature acoustic transducer.
Dependencies are inferred from the claim text.