Patents by Inventor Yu-Sen Jia

Yu-Sen Jia 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).

  • Control circuit for identifying power adaptor and method for use thereof
    Patent number: 7804257
    Abstract: A control circuit (100) being adapted for identifying an adaptor of an electronic device includes an adaptor-side circuit (110) that is incorporated in the adaptor and a system-side circuit (120) that is incorporated in the electronic device. The adaptor-side circuit converts a high alternating voltage coming from a power source to a low direct voltage and has a positive output terminal and a negative output terminal. A voltage dividing circuit (30) is connected with the positive output terminal, and has a control terminal outputting a voltage. The system-side circuit includes a switching circuit (40) connected to the positive output terminal and the control terminal. The voltage outputted by the control terminal is used to switch on the switching circuit in order to energize the electronic device via the direct current voltage outputted by the positive and negative output terminals.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: September 28, 2010
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventor: Yu-Sen Jia
  • CONTROL CIRCUIT FOR IDENTIFYING POWER ADAPTOR AND METHOD FOR USE THEREOF
    Publication number: 20080129123
    Abstract: A control circuit (100) being adapted for identifying an adaptor of an electronic device includes an adaptor-side circuit (110) that is incorporated in the adaptor and a system-side circuit (120) that is incorporated in the electronic device. The adaptor-side circuit converts a high alternating voltage coming from a power source to a low direct voltage and has a positive output terminal and a negative output terminal. A voltage dividing circuit (30) is connected with the positive output terminal, and has a control terminal outputting a voltage. The system-side circuit includes a switching circuit (40) connected to the positive output terminal and the control terminal. The voltage outputted by the control terminal is used to switch on the switching circuit in order to energize the electronic device via the direct current voltage outputted by the positive and negative output terminals.
    Type: Application
    Filed: December 1, 2006
    Publication date: June 5, 2008
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: YU-SEN JIA