Patents Assigned to Longinesteno Technology Complex Corporation
  • Publication number: 20190368244
    Abstract: A loudspeaker structure with a push-latch coupling design includes an enclosure unit, a speaker driver, a mesh cover, and a push latch device. The push latch device includes a female latch portion and a male latch portion. The male latch portion is fixed on the inner side, and adjacent to the periphery, of the mesh cover and has a latching head. The female latch portion is fixed on, and adjacent to a through hole in, the front-panel frame of the enclosure unit and includes a locking mechanism. Once the latching head is inserted in the female latch portion, the locking mechanism enters a locking state, in which the mesh cover is locked to the enclosure unit and covers the speaker driver. A gentle press on the mesh cover can change the locking state into a release state to enable automatic separation between the mesh cover and the enclosure unit.
    Type: Application
    Filed: July 24, 2018
    Publication date: December 5, 2019
    Applicant: LONGINESTENO TECHNOLOGY COMPLEX CORPORATION
    Inventor: Chao-Lang WANG
  • Patent number: 9967657
    Abstract: A directional loudspeaker box with directional acoustic transmission holes includes a hollow housing and a loudspeaker. The hollow housing is provided with a front opening at the front end and has a peripheral portion adjacent to the front opening and formed with a plurality of directional acoustic transmission holes. The loudspeaker is fixed in the hollow housing and generates sound that can propagate out of the hollow housing through the front opening and the directional acoustic transmission holes. The angle at which each directional acoustic transmission hole is formed with respect to the central axis of the loudspeaker is a function of the axial distance between the directional acoustic transmission hole and the loudspeaker, wherein the smaller the axial distance, the larger the angle, and the larger the axial distance, the smaller the angle. Thus, the directional loudspeaker box effectively deals with near- and far-field sound effects.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: May 8, 2018
    Assignee: LONGINESTENO TECHNOLOGY COMPLEX CORPORATION
    Inventor: Chao-Lang Wang
  • Patent number: 8757317
    Abstract: The present invention is to provide a loudspeaker enclosure structure which includes a hollow housing being a barrel-shaped housing whose outer surface is concavely provided with a plurality of directional grooves each evenly arranged along the circumferential direction of the hollow housing and extending from the front end to rear end of the hollow housing, and a reflective cover having a front side fixed to a rear opening of the hollow housing and concavely provided with an annular reflective groove adjacent to the periphery of the reflective cover. The hollow housing has a receiving space therein which is in communication with each directional groove through the reflective groove. Therefore, the sound generated by a loudspeaker fixed in the receiving space will not only propagate out of the front end of the hollow housing, but also be transmitted to the space surrounding the hollow housing by way of the directional grooves.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: June 24, 2014
    Assignee: Longinesteno Technology Complex Corporation
    Inventor: Chao-Lang Wang