Patents by Inventor Jen-Chien Chang

Jen-Chien 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: 11973522
    Abstract: Aspects of this disclosure relate to a front end architecture for selectively adding an external carrier aggregation band. A switch element can connect a radio frequency signal path to an antenna path through a frequency domain multiplexer, such as a diplexer, in a first mode. The switch element can connect the radio frequency path to the antenna path and bypass the frequency domain multiplexer in a second mode. The frequency domain multiplexer can be external to a front end module that include the radio frequency signal path. In the first mode, a front end system can support carrier aggregation with a band associated with circuitry implemented external to the front end module.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: April 30, 2024
    Assignee: Skyworks Solutions, Inc.
    Inventors: Jen-Chien Chang, Reza Kasnavi, Roman Zbigniew Arkiszewski, Jeffrey Gordon Strahler, John G. Freed
  • Patent number: 11161477
    Abstract: A vehicle door handle including an RFID module and a button module cooperates with a vehicle controller and a remote control. The button module triggers the RFID module to transmit a querying code to the remote control upon being pressed. The remote control transmits a confirmation code and a remote ID code to the RFID module, and the RFID module determines whether the confirmation code corresponds to the querying code. If yes, the RFID module further forwards the remote ID code to the controller in order for the controller to determine whether the remote ID code is identical with a pre-stored ID code, and to control a lock actuator to switch from a locking position to an unlocking position, or vice versa, when it is determined that the remote ID code is identical with the pre-stored ID code.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: November 2, 2021
    Assignees: HU SHAN AUTO PARTS INC., INVENTEC BESTA CO., LTD.
    Inventors: Ying-Chih Chen, Jen-Chien Chang, Ching-Chaing Tsai
  • Publication number: 20210194511
    Abstract: Aspects of this disclosure relate to a front end architecture for selectively adding an external carrier aggregation band. A switch element can connect a radio frequency signal path to an antenna path through a frequency domain multiplexer, such as a diplexer, in a first mode. The switch element can connect the radio frequency path to the antenna path and bypass the frequency domain multiplexer in a second mode. The frequency domain multiplexer can be external to a front end module that include the radio frequency signal path. In the first mode, a front end system can support carrier aggregation with a band associated with circuitry implemented external to the front end module.
    Type: Application
    Filed: March 10, 2021
    Publication date: June 24, 2021
    Inventors: Jen-Chien Chang, Reza Kasnavi, Roman Zbigniew Arkiszewski, Jeffrey Gordon Strahler, John G. Freed
  • Patent number: 10979088
    Abstract: Aspects of this disclosure relate to a front end architecture for selectively adding an external carrier aggregation band. A switch element can connect a radio frequency signal path to an antenna path through a frequency domain multiplexer, such as a diplexer, in a first mode. The switch element can connect the radio frequency path to the antenna path and bypass the frequency domain multiplexer in a second mode. The frequency domain multiplexer can be external to a front end module that include the radio frequency signal path. In the first mode, a front end system can support carrier aggregation with a band associated with circuitry implemented external to the front end module.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: April 13, 2021
    Assignee: Skyworks Solutions, Inc.
    Inventors: Jen-Chien Chang, Reza Kasnavi, Roman Zbigniew Arkiszewski, Jeffrey Gordon Strahler, John G. Freed
  • Patent number: 10852624
    Abstract: A camera device includes a lens module, a mounting casing, and a base member. The lens module includes a housing, a camera unit mounted in and partially exposed from the housing, and a wire electrically connected to the camera unit. The mounting casing includes a main body having a front wall formed with a front window and a surrounding wall peripherally extending from the front wall and cooperating with the front wall to define a receiving space being in spatial communication with the front window, and two connecting portions extending from the surrounding wall of the main body. The housing is disposed in the receiving space to expose the camera unit from the front window. The base member is connected to the housing and the mounting casing.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: December 1, 2020
    Assignees: HU SHAN AUTO PARTS INC., INVENTEC BESTA CO., LTD.
    Inventors: Ying-Chih Chen, Jen-Chien Chang, Ching-Chaing Tsai
  • Publication number: 20200307517
    Abstract: A vehicle door handle including an RFID module and a button module cooperates with a vehicle controller and a remote control. The button module triggers the RFID module to transmit a querying code to the remote control upon being pressed. The remote control transmits a confirmation code and a remote ID code to the RFID module, and the RFID module determines whether the confirmation code corresponds to the querying code. If yes, the RFID module further forwards the remote ID code to the controller in order for the controller to determine whether the remote ID code is identical with a pre-stored ID code, and to control a lock actuator to switch from a locking position to an unlocking position, or vice versa, when it is determined that the remote ID code is identical with the pre-stored ID code.
    Type: Application
    Filed: March 23, 2020
    Publication date: October 1, 2020
    Inventors: Ying-Chih CHEN, Jen-Chien CHANG, Ching-Chaing TSAI
  • Publication number: 20200142280
    Abstract: A camera device includes a lens module, a mounting casing, and a base member. The lens module includes a housing, a camera unit mounted in and partially exposed from the housing, and a wire electrically connected to the camera unit. The mounting casing includes a main body having a front wall formed with a front window and a surrounding wall peripherally extending from the front wall and cooperating with the front wall to define a receiving space being in spatial communication with the front window, and two connecting portions extending from the surrounding wall of the main body. The housing is disposed in the receiving space to expose the camera unit from the front window. The base member is connected to the housing and the mounting casing.
    Type: Application
    Filed: April 16, 2019
    Publication date: May 7, 2020
    Inventors: Ying-Chih CHEN, Jen-Chien CHANG, Ching-Chaing TSAI
  • Publication number: 20190190548
    Abstract: Aspects of this disclosure relate to a front end architecture for selectively adding an external carrier aggregation band. A switch element can connect a radio frequency signal path to an antenna path through a frequency domain multiplexer, such as a diplexer, in a first mode. The switch element can connect the radio frequency path to the antenna path and bypass the frequency domain multiplexer in a second mode. The frequency domain multiplexer can be external to a front end module that include the radio frequency signal path. In the first mode, a front end system can support carrier aggregation with a band associated with circuitry implemented external to the front end module.
    Type: Application
    Filed: December 12, 2018
    Publication date: June 20, 2019
    Inventors: Jen-Chien Chang, Reza Kasnavi, Roman Zbigniew Arkiszewski, Jeffrey Gordon Strahler, John G. Freed
  • Publication number: 20080277860
    Abstract: A sheet-conveying apparatus and a method for detection of the multifeed thereof are provided. The sheet-conveying apparatus includes a passageway, a sheet-transporting mechanism and a sheet-detecting device. The sheet-detecting device disposed in the passageway includes a first transmitter, a first receiver, a second transmitter and a second receiver. A first signal is transmitted from the first transmitter along a first transmitting path and received by the first receiver. A second signal is transmitted from the second transmitter along a second transmitting path and received by the second receiver. The second transmitting path is oblique to the first transmitting path. The sheet-detecting device further includes a control-process unit for determining if the condition of the multifeed has occurred in the sheet-conveying apparatus according to the variations in the first signal and the second signal respectively received by the first receiver and the second receiver.
    Type: Application
    Filed: May 6, 2008
    Publication date: November 13, 2008
    Applicant: AVISION INC.
    Inventors: Yen-Cheng Chen, Jen-Chien Chang
  • Publication number: 20080278776
    Abstract: A scanning module disposed on one side of a transparent platen of a scanner for scanning a document disposed on the reverse side of the transparent platen is provided. The scanning module comprises a base, a lamp, a holder and an optical sensing component. The lamp for illuminating the document comprises a first section and a second section. The first section extends substantially parallel to a plane of the transparent platen. A first end of the second section is connected to one end of the first section. The shortest distance between a second end of the second section and the transparent platen is greater than that between the first section and the transparent platen. The holder is disposed on the second section for fixing the lamp to the base. The optical sensing component is used for receiving the light reflected by the document and converting that into an image signal.
    Type: Application
    Filed: April 8, 2008
    Publication date: November 13, 2008
    Applicant: AVISION INC.
    Inventors: Thomas Sheng, Devon Shyu, Jen-Chien Chang
  • Publication number: 20080240743
    Abstract: A sheet-conveying apparatus and a method for detecting multiple-sheet feeding thereof are provided. The sheet-conveying apparatus includes a passageway, a sheet-transporting mechanism and a sheet-detecting device. The sheet-detecting device includes a first transmitter, a first receiver, a second transmitter and a second receiver. The first receiver is for receiving a first signal of a first intensity transmitted from the first transmitter. The second receiver is for receiving a second signal of a second intensity transmitted from the second transmitter. The second intensity of the second signal is not equal to the first intensity of the first signal. The sheet-detecting device further includes an analysis unit for determining if the multiple sheets are conveyed in the passageway, according to the intensities of the signals respectively received by the first receiver and the second receiver.
    Type: Application
    Filed: January 9, 2008
    Publication date: October 2, 2008
    Applicant: AVISION INC.
    Inventors: Yen-Cheng Chen, Jen-Chien Chang