Patents by Inventor Zhigan Dai

Zhigan Dai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9883266
    Abstract: A loudspeaker module comprises a loudspeaker unit and a module housing. A front acoustic cavity and a rear acoustic cavity are formed between the module housing and the loudspeaker unit. The upper and lower ends of the front acoustic cavity and the rear acoustic cavity are open. The upper and lower end surfaces of the module housing are combined with a terminal electronic device through sealing cushions. An electronic device is also disclosed. The upper and lower surfaces of the module housing are combined with the circuit board or the device housing through sealing cushions. Such a structure fully utilizes the spaces of the loudspeaker module and the electronic device, expands the internal space of the loudspeaker module, increases the sizes of the loudspeaker unit and the sound cavities, and accordingly improves the acoustical performance of the product.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: January 30, 2018
    Assignee: GOERTEK INC.
    Inventors: Zhigan Dai, Di Wu, Huiyu Li, Xinfeng Yang
  • Patent number: 9681215
    Abstract: A speaker module includes a casing and a speaker unit housed and fixed in the casing, a rear acoustic cavity being formed between the casing and the speaker unit, wherein at least one baffle wall is provided on the casing in the rear acoustic cavity and divides the rear acoustic cavity into at least two cavities, and wherein at least one slit is formed between the baffle walls or on the baffle wall, so that sound generated by the speaker unit can spread to an adjacent cavity inside the rear acoustic cavity through the slit.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: June 13, 2017
    Assignee: GOERTEK INC.
    Inventors: Yitao Liu, Zhigan Dai, Qing Miao
  • Publication number: 20160323675
    Abstract: A loudspeaker module comprises a loudspeaker unit and a module housing. A front acoustic cavity and a rear acoustic cavity are formed between the module housing and the loudspeaker unit. The upper and lower ends of the front acoustic cavity and the rear acoustic cavity are open. The upper and lower end surfaces of the module housing are combined with a terminal electronic device through sealing cushions. An electronic device is also disclosed. The upper and lower surfaces of the module housing are combined with the circuit board or the device housing through sealing cushions. Such a structure fully utilizes the spaces of the loudspeaker module and the electronic device, expands the internal space of the loudspeaker module, increases the sizes of the loudspeaker unit and the sound cavities, and accordingly improves the acoustical performance of the product.
    Type: Application
    Filed: April 28, 2014
    Publication date: November 3, 2016
    Inventors: Zhigan Dai, Di Wu, Huiyu Li, Xinfeng Yang
  • Publication number: 20160261949
    Abstract: A speaker module includes a casing and a speaker unit housed and fixed in the casing, a rear acoustic cavity being formed between the casing and the speaker unit, wherein at least one baffle wall is provided on the casing in the rear acoustic cavity and divides the rear acoustic cavity into at least two cavities, and wherein at least one slit is formed between the baffle walls or on the baffle wall, so that sound generated by the speaker unit can spread to an adjacent cavity inside the rear acoustic cavity through the slit.
    Type: Application
    Filed: April 15, 2014
    Publication date: September 8, 2016
    Applicant: GOERTEK INC.
    Inventors: Yitao Liu, Zhigan Dai, Qing Miao