Patents by Inventor Chang-Yen CHENG

Chang-Yen 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).

  • Mobile device and tunable antenna therein
    Patent number: 9002297
    Abstract: A mobile device includes an antenna, an ESD (Electrostatic Discharge) protection component, a plurality of branches, and a switch. The antenna is configured to transmit and receive an RF (Radio Frequency) signal. The branches provide different inductances or different capacitances, and are respectively coupled to a ground voltage terminal. The switch is coupled through the ESD protection component to the antenna, and switches between the branches according to a control signal such that the antenna is capable of operating in a plurality of frequency intervals. The ESD protection component is configured to protect the switch from being damaged.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: April 7, 2015
    Assignee: HTC Corporation
    Inventors: Ju-Hung Chen, Chien-Pin Chiu, Chang-Yen Cheng, Chi-Hsien Chiu
  • MOBILE DEVICE AND TUNABLE ANTENNA THEREIN
    Publication number: 20140128007
    Abstract: A mobile device includes an antenna, an ESD (Electrostatic Discharge) protection component, a plurality of branches, and a switch. The antenna is configured to transmit and receive an RF (Radio Frequency) signal. The branches provide different inductances or different capacitances, and are respectively coupled to a ground voltage terminal. The switch is coupled through the ESD protection component to the antenna, and switches between the branches according to a control signal such that the antenna is capable of operating in a plurality of frequency intervals. The ESD protection component is configured to protect the switch from being damaged.
    Type: Application
    Filed: November 6, 2012
    Publication date: May 8, 2014
    Applicant: HTC CORPORATION
    Inventors: Ju-Hung CHEN, Chien-Pin CHIU, Chang-Yen CHENG, Chi-Hsien CHIU