Patents by Inventor Chih-Hao Li

Chih-Hao Li 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).

  • Earphone jack
    Patent number: 8243945
    Abstract: An earphone jack (100) for a portable electronic device includes a detecting module (20) and a jack module (30). The detecting module is configured for detecting if a plug of an earphone has been connected to the earphone jack. The jack module is connected to the detecting module, and includes a connecting hole (32) configured for receiving the plug defined therein, two earphone connectors (333, 334) configured for connecting the plug, a contacting member (35) connected to the detecting module, and a movable member (331) separately connected to the contacting member. Therefore, the detecting module can detect the plug connected to the earphone jack without causing any instantaneous current in the jack module and the plug.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: August 14, 2012
    Assignee: Chi Mei Communication Systems, Inc.
    Inventor: Chih-Hao Li
  • EARPHONE JACK
    Publication number: 20100014701
    Abstract: An earphone jack (100) for a portable electronic device includes a detecting module (20) and a jack module (30). The detecting module is configured for detecting if a plug of an earphone has been connected to the earphone jack. The jack module is connected to the detecting module, and includes a connecting hole (32) configured for receiving the plug defined therein, two earphone connectors (333, 334) configured for connecting the plug, a contacting member (35) connected to the detecting module, and a movable member (331) separately connected to the contacting member. Therefore, the detecting module can detect the plug connected to the earphone jack without causing any instantaneous current in the jack module and the plug.
    Type: Application
    Filed: December 9, 2008
    Publication date: January 21, 2010
    Applicant: CHI MEI COMMUNICATION SYSTEMS, INC.
    Inventor: Chih-Hao Li
  • PORTABLE ELECTRONIC DEVICE AND METHOD FOR IDENTIFYING ACCESSORY CONNECTED TO THE SAME
    Publication number: 20090109639
    Abstract: A portable electronic device (1) includes an interface (10), a circuit board (200) and an accessory identifying unit (100). The interface includes a plurality of connectors (VBUS, D+, D? and ID). The circuit board includes a plurality of controlling circuits (21, 22, 23 and 24). The accessory identifying unit is electronically connected to the interface and the circuit board, and includes a plurality of detection circuits (11, 12 and 13) corresponding to the connectors and the controlling circuits. Each detection circuit is electronically connected to its corresponding connector and detection circuit.
    Type: Application
    Filed: December 27, 2007
    Publication date: April 30, 2009
    Applicant: CHI MEI COMMUNICATION SYSTEMS, INC.
    Inventor: CHIH-HAO LI