Patents by Inventor Joey Chang

Joey Chang 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: 11961542
    Abstract: Various illustrative aspects are directed to a data storage device comprising a slider with a resistive temperature detector with a first resistance, a resistance detection circuit electrically coupled to the first resistance and comprising a low and high frequency path corresponding to a DC and AC mode, respectively, and one or more processing devices configured to: bias the first resistance with a voltage bias, where the first resistance is coupled to a first and second amplifier, control a pulse generator to add a bias pulse on the HF path to generate a HF resistance detection signal, where the second amplifier is biased using the voltage bias and the bias pulse, control a clock to chop a LF signal at the first amplifier on the LF path, demodulate the chopped LF signal to generate a LF resistance detection signal, and concurrently process the HF and LF resistance detection signals.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: April 16, 2024
    Assignee: Western Digital Technologies, Inc.
    Inventors: John Contreras, Joey M. Poss, Ronald Chang, Bernhard E. Knigge
  • Patent number: 7389924
    Abstract: An electronic card connector including a plastic main body having a carrier board section. An electronic card receiving region is defined between two electronic card receiving channels. An entrance of the electronic card receiving region is formed at front end of the plastic main body. A circuit board is mounted between the sidewalls of the plastic main body. The circuit board includes multiple contact terminals extending into the electronic card receiving region for contacting with a corresponding contact of the chip of an electronic card inserted in the electronic card receiving region. The circuit board further includes multiple adaptive terminals. A first end of each adaptive terminal is connected to a corresponding contact terminal via a printed circuit. A second end of the adaptive terminal is connected with a circuit board of the card reader or plugged in a socket of the circuit board of the card reader.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: June 24, 2008
    Assignee: Super Link Electronics Co., Ltd.
    Inventors: Ipson Lee, Joey Chang
  • Publication number: 20060213990
    Abstract: An electronic card connector including a plastic main body having a carrier board section. An electronic card receiving region is defined between two electronic card receiving channels. An entrance of the electronic card receiving region is formed at front end of the plastic main body. A circuit board is mounted between the sidewalls of the plastic main body. The circuit board includes multiple contact terminals extending into the electronic card receiving region for contacting with a corresponding contact of the chip of an electronic card inserted in the electronic card receiving region. The circuit board further includes multiple adaptive terminals. A first end of each adaptive terminal is connected to a corresponding contact terminal via a printed circuit. A second end of the adaptive terminal is connected with a circuit board of the card reader or plugged in a socket of the circuit board of the card reader.
    Type: Application
    Filed: March 28, 2005
    Publication date: September 28, 2006
    Inventors: Ipson Lee, Joey Chang
  • Patent number: 6979201
    Abstract: A three-in-one socket of an electronic card connector includes a plastic main body which is formed with a first, a second and a third types of terminal mounting orifice sections. The first type of terminal mounting orifice section is formed with two rows of terminal mounting orifices in each of which a first type of terminal is inlaid for correspondingly connecting with a terminal of a first type of electronic card connector. The second and third types of terminal mounting orifice section are formed with a row of terminal mounting orifices in each of which a second and third types of terminal are inlaid for correspondingly connecting with a terminal of a second type of electronic card connector, respectively.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: December 27, 2005
    Assignee: Super Link Electronics Co., Ltd.
    Inventors: Ipson Lee, Joey Chang