Patents by Inventor Chuan-Hsien Cheng

Chuan-Hsien Cheng 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).

  • External sound box, loudspeaker module with same and electronic device
    Patent number: 9571920
    Abstract: An external sound box includes a connecting member and a sound box. The connecting member includes a sound passage and is selectively attachable to a surface of an electronic device to cover a sounding hole of the electronic device. The sound box is mounted to the connecting member. The sound box defines a resonant chamber communicating with the sound passage and a sounding output hole. Sound generated by the electronic device moves from the sounding hole into the sound passage and the sound box. The sounding passage and the sound box are configured so that the sound from the sounding hole resonates before exiting the sound output hole with increased volume.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: February 14, 2017
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventors: Chuan-Hsien Cheng, Chun-Jen Chen
  • Earplug and electronic device using the same
    Patent number: 9486365
    Abstract: An earplug includes a sleeve, a resonance tube, and a tip. The sleeve has a plurality of slits, and the resonance tube is connected between the sleeve and the tip. When the sleeve is pressed to deform, the slits are opened to allow sound to enter the sleeve, and pass through the resonance tube and the tip.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: November 8, 2016
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventor: Chuan-Hsien Cheng
  • EXTERNAL SOUND BOX, LOUDSPEAKER MODULE WITH SAME AND ELECTRONIC DEVICE
    Publication number: 20150189424
    Abstract: An external sound box includes a connecting member and a sound box. The connecting member includes a sound passage and is selectively attachable to a surface of an electronic device to cover a sounding hole of the electronic device. The sound box is mounted to the connecting member. The sound box defines a resonant chamber communicating with the sound passage and a sounding output hole. Sound generated by the electronic device moves from the sounding hole into the sound passage and the sound box. The sounding passage and the sound box are configured so that the sound from the sounding hole resonates before exiting the sound output hole with increased volume.
    Type: Application
    Filed: December 24, 2014
    Publication date: July 2, 2015
    Inventors: CHUAN-HSIEN CHENG, CHUN-JEN CHEN
  • EARPLUG AND ELECTRONIC DEVICE USING THE SAME
    Publication number: 20150136148
    Abstract: An earplug includes a sleeve, a resonance tube, and a tip. The sleeve has a plurality of slits, and the resonance tube is connected between the sleeve and the tip. When the sleeve is pressed to deform, the slits are opened to allow sound to enter the sleeve, and pass through the resonance tube and the tip.
    Type: Application
    Filed: March 4, 2014
    Publication date: May 21, 2015
    Applicant: CHIUN MAI COMMUNICATION SYSTEMS, INC.
    Inventor: CHUAN-HSIEN CHENG
  • SPEAKER MODULE AND ELECTRONIC DEVICE EMPLOYING SAME
    Publication number: 20140193025
    Abstract: An electronic device includes an internal speaker module and an external sound box detachably applied to the internal speaker module. The valve is resisted to the opening to cover the opening of the internal speaker module. When external sound box is applied to the internal speaker module, the connector is magnetically attracted with the magnetic attracter, while the valve is magnetically repelled from the connector and moves away from the opening to open the opening, thereby the external sound chamber is communicating with the internal sound chamber.
    Type: Application
    Filed: August 30, 2013
    Publication date: July 10, 2014
    Applicant: CHIUN MAI COMMUNICATION SYSTEMS, INC.
    Inventor: CHUAN-HSIEN CHENG
  • Speaker module and electronic device employing same
    Patent number: 8761432
    Abstract: An electronic device includes an internal speaker module and an external sound box detachably applied to the internal speaker module. The valve is resisted to the opening to cover the opening of the internal speaker module. When external sound box is applied to the internal speaker module, the connector is magnetically attracted with the magnetic attracter, while the valve is magnetically repelled from the connector and moves away from the opening to open the opening, thereby the external sound chamber is communicating with the internal sound chamber.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: June 24, 2014
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventor: Chuan-Hsien Cheng
  • Sterilization device
    Patent number: D1017062
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: March 5, 2024
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Chih-Hsien Wang, Shih-Chieh Chang, Chuan-Hsi Chang, Peng-Hui Wang, Ming-Chieh Cheng