Patents Assigned to FIRSTCHAIR ACOUSTICS CO., LTD.
  • Patent number: 9479862
    Abstract: The present invention provides an acoustic box structure comprising a main body having a cover and a base with a cut-out slot, and formed of a hollow cavity constructed by the cover and the base with a pair of side panels; a modular supporting plate formed by side plates extended vertically from lateral sides of a substrate and comprising a top plate extended vertically therefrom, and disposed inside the hollow cavity; a circuit main board comprising a processor, sockets and terminals, and disposed on the modular supporting plate; an acoustic box connecting board comprising the terminals and the terminals electrically coupled thereto, and inserted into the cut-out slot; a speaker module comprising at least one speaker compartment on the base member and comprising terminals corresponding to the sockets of the modular supporting plate. Accordingly, the acoustic box structure of the present invention can be facilitated for assembly with increased diversity.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: October 25, 2016
    Assignees: FirstChair Acoustics Co., Ltd.
    Inventor: Ching-Wen Yang
  • Publication number: 20150078605
    Abstract: The present invention provides an improved speaker structure, which includes a speaker body, a resonance body and at least one sound guiding portion. The resonance body includes a resonance film and a resonance film frame. The sound guiding portion includes a first sound guiding member, a second sound guiding member and a back frame unit. The speaker structure forms a sealed sound chamber by combining the speaker body, the resonance body and the at least one sound guiding portion. When the speaker body generates a front sound wave and a guiding sound wave, the front sound wave is transmitted within the sound chamber to the resonance film to enhance low frequency sound effect, and the guiding sound wave is transmitted within the resonance cavity and forms a back sound wave, thus reducing noise in the sound region and enabling better extension of the sound wave towards low frequency range.
    Type: Application
    Filed: February 25, 2014
    Publication date: March 19, 2015
    Applicants: FirstChair Acoustics Co., Ltd.
    Inventor: Ching-Wen Yang
  • Publication number: 20150078612
    Abstract: The present invention is to provide a structure of speaker driver, it comprising a base, a drum paper, a yoke, a sound coil and a magnetic unit. The base includes an upper combining portion and a lower combining portion. The drum paper is configured to the upper combining portion. The yoke is configured to the lower combining portion. The sound coil is configured to an underside of drum paper surroundingly. The magnetic unit has a magnet and a front plate, the magnetic unit is configured to above the yoke. Wherein an internal ring surface of yoke has a surface of first poly-magnet and a surface of second poly-magnet, the surface of first poly-magnet is closer to center of yoke than the internal ring surface, the surface of second poly-magnet rises along with the internal of yoke, a bottom of yoke also rises to correspond to the surface of second poly-magnet; an external ring surface of front piece is more distant from center of front piece than an external ring surface of magnet.
    Type: Application
    Filed: February 25, 2014
    Publication date: March 19, 2015
    Applicants: Ching-Wen Yang, FirstChair Acoustics Co., Ltd.
    Inventor: Ching-Wen Yang
  • Patent number: 8867778
    Abstract: A loudspeaker has a short support post joined to the forward plate; upper end of the support post in association with the fixing post is joined to the middle part of the drum paper with the fixing post; the voice coil has the upper end thereof joined to the drum paper; when the voice coil drives the drum paper to vibrate and emit sound, the upper end of the short support post sways and generates a small offset because of the lower end of the support post being retained by the forward plate such that the voice coil moves axially in the magnetic clearance without deviation, and the voice coil is incapable of touching the yoke or the forward plate to produce noise; therefore, quality of sound output from the loudspeaker is enhanced effectively.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: October 21, 2014
    Assignees: FirstChair Acoustics Co., Ltd.
    Inventor: Ching-Wen Yang
  • Publication number: 20140133691
    Abstract: A loudspeaker has a short support post joined to the forward plate; upper end of the support post in association with the fixing post is joined to the middle part of the drum paper with the fixing post; the voice coil has the upper end thereof joined to the drum paper; when the voice coil drives the drum paper to vibrate and emit sound, the upper end of the short support post sways and generates a small offset because of the lower end of the support post being retained by the forward plate such that the voice coil moves axially in the magnetic clearance without deviation, and the voice coil is incapable of touching the yoke or the forward plate to produce noise; therefore, quality of sound output from the loudspeaker is enhanced effectively.
    Type: Application
    Filed: March 12, 2013
    Publication date: May 15, 2014
    Applicants: FIRSTCHAIR ACOUSTICS CO., LTD.
    Inventor: CHING-WEN YANG