Abstract: The present disclosure provides an earphone including a sound generating unit, an abutment unit, and an ear hook. The ear hook has a symmetry plane along a length direction of the ear hook. The abutment unit includes a first housing and a first microphone. The sound generating unit includes a second housing and a second microphone. The earphone further includes a processing circuit configured to perform noise reduction processing based on a first sound and a second sound. The earphone further includes a first reference plane located below the symmetry plane and parallel to the symmetry plane in a wearing state. A distance from the first reference plane to the symmetry plane is less than or equal to 5 mm. A first sound inlet includes a sound inlet end located on an outer wall surface of the first housing.

Abstract: The present disclosure provides an earphone including a sound generating unit, an abutment unit, and an ear hook. The ear hook has a symmetry plane along a length direction of the ear hook. The abutment unit includes a first housing and a first microphone. The sound generating unit includes a second housing and a second microphone. The earphone further includes a processing circuit configured to perform noise reduction processing based on a first sound and a second sound. The earphone further includes a first reference plane located below the symmetry plane and parallel to the symmetry plane in a wearing state. A distance from the first reference plane to the symmetry plane is less than or equal to 5 mm. A first sound inlet includes a sound inlet end located on an outer wall surface of the first housing.

Abstract: The present disclosure provides an earphone including a sound generating unit, an abutment unit, and an ear hook. The ear hook has a symmetry plane along a length direction of the ear hook. The abutment unit includes a first housing and a first microphone. The sound generating unit includes a second housing and a second microphone. The earphone further includes a processing circuit configured to perform noise reduction processing based on a first sound and a second sound. The earphone further includes a first reference plane located below the symmetry plane and parallel to the symmetry plane in a wearing state. A distance from the first reference plane to the symmetry plane is less than or equal to 5 mm. A first sound inlet includes a sound inlet end located on an outer wall surface of the first housing.

Abstract: The present disclosure provides an earphone including a sound generating unit, an abutment unit, and an ear hook. The ear hook has a symmetry plane along a length direction of the ear hook. The abutment unit includes a first housing and a first microphone. The sound generating unit includes a second housing and a second microphone. The earphone further includes a processing circuit configured to perform noise reduction processing based on a first sound and a second sound. The earphone further includes a first reference plane located below the symmetry plane and parallel to the symmetry plane in a wearing state. A distance from the first reference plane to the symmetry plane is less than or equal to 5 mm. A first sound inlet includes a sound inlet end located on an outer wall surface of the first housing.

Abstract: Provided is an ear-clip earphone, including a sound-generating portion, an abutment portion, and an ear hook. The sound-generating portion includes: a housing having an accommodating cavity; a sound-generating assembly accommodated in the accommodating cavity; and a sound outlet hole located on the housing and configured to guide out a sound. In a wearing state, the sound-generating portion is configured to be located in a concha cavity of a user and contact an inner wall of the concha cavity. The abutment portion is configured to abut a rear side of an auricle of the user, and a battery is disposed in the abutment portion. The ear hook is configured to bypass an antihelix and a helix of the user, connect to the sound-generating portion and the abutment portion, and provide a clamping force for clamping the sound-generating portion and the abutment portion on two sides of the auricle.

Abstract: One or more embodiments of the present disclosure relates to an ear-clip earphone. The ear-clip earphone includes a sound-generating portion, a abutment portion, and an ear hook. The ear hook is configured to bypass an antihelix and a helix of a user, and connect the sound-generating portion and the abutment portion. The ear hook has a first symmetry plane. A housing forms a first projection on the first symmetry plane. The abutment portion forms a second projection on the first symmetry plane. The ear hook forms a third projection on the first symmetry plane. A first tangent point exists between the first projection and the second projection. The first tangent point serves as a first feature point. A point on an inner contour curve of the third projection that is farthest away from the first feature point is defined as a second feature point.

Abstract: A clip-on earphone includes a sound production portion for inserting into a concha cavity of a wearer, an abutment portion for abutting against a back of an ear of the wearer, and an ear hook connecting the sound production portion and the abutment portion. The abutment portion includes a first rigid housing, a second rigid housing, and a first flexible member covering an outer wall of the second rigid housing. An outer wall of the first rigid housing is not covered by the first flexible member and is in an exposed state; or the first flexible member extends from an outer side of the second rigid housing to an outer side of the first rigid housing and covers a portion of the outer wall of the first rigid housing, such that a remaining portion of the outer wall of the first rigid housing is in an exposed state.

Abstract: The present disclosure relates to a clip-on earphone including a sound generation portion, an abutting portion, and an ear hook connecting the sound generation portion and the abutting portion. The sound generation portion includes a first housing and a sound generation assembly. The first housing includes a first rigid housing connected to the ear hook, a second rigid housing for facing a concha cavity of the wearer when worn, and a first flexible member for contacting the concha cavity. The first rigid housing and the second rigid housing enclose to form a first accommodating cavity. The first flexible member covers an outer wall of the second rigid housing. The sound generation assembly is disposed in the first accommodating cavity. The first housing includes a sound outlet hole. A sound wave generated by the sound generation assembly is capable of propagating to the wearer through the sound outlet hole.

Abstract: The present disclosure relates to an ear-clip earphone, comprising a sound production portion for inserting into a concha cavity, an abutting portion for abutting a rear side of an ear, and an ear hook connecting the sound production portion and the abutting portion. The abutting portion and the sound production portion are configured to clamp the ear-clip earphone onto a helix of the wearer. The sound production portion includes a first housing and a sound production assembly, the first housing including a first accommodation cavity accommodating the sound production assembly. The first housing is provided with a sound outlet hole, the ear hook includes a symmetry plane, an angle between a central axis of the sound outlet hole and the symmetry plane is in a range of 15-45 degrees, and in a wearing state, the sound outlet hole is located on a lower side of the symmetry plane.

Abstract: A method for providing document category recommendations may include training a machine learning algorithm; receiving, from a user, a selection of an anchor document; retrieving a user co-viewing sequence; generating, via the trained machine learning algorithm, a sequence embeddings set based on the anchor document and the user co-viewing sequence; comparing the generated embeddings set to respective embeddings for a plurality of candidate sets; determining the candidate set closest to the generated embeddings; and presenting at least one category from the closest candidate set.

Abstract: The present disclosure provides an earphone. The earphone includes a sound generation portion including a first housing, a second housing, and a speaker assembly. The speaker assembly includes an annular support assembly and two sets of vibration assemblies. The two sets of vibration assemblies respectively include protrusion portions protruding beyond the annular support assembly along an axial direction and arranged opposite to each other. The speaker assembly cooperates with the first housing and the second housing to form two first acoustic cavities around two protrusion portions. The annular support assembly has a middle dividing plane perpendicular to the axial direction, and the first housing is provided with two pressure relief holes spaced apart from each other on two sides of the middle dividing plane and respectively connect the corresponding first acoustic cavities with an external environment.

Abstract: The present disclosure relates to an earphone, including: a sound-generating portion; an abutment portion; and an ear hook. The ear hook includes an elastic metal member. In a reference cross-section along a length direction of the ear hook and in a natural state of the earphone, the elastic metal member includes an elastic segment. The elastic segment is divided into a first sub-elastic segment and a second sub-elastic segment that are arranged in an arc shape and connected to each other. A curvature radius of at least a portion of the first sub-elastic segment starting from the connection point and a curvature radius of at least a portion of the second sub-elastic segment starting from the connection point gradually increase. A length of the first sub-elastic segment is greater than a length of the second sub-elastic segment.