Patents by Inventor Hyungjoong Lee

Hyungjoong Lee 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).

  • Publication number: 20240321206
    Abstract: A display apparatus includes plural pixels, a scan driver, a data driver, and a read-out circuit that reads out an electrical characteristic of each of the pixels. Each of the pixels includes a first transistor, a second transistor, a third transistor, a fourth transistor including a first electrode connected with a power node, a second electrode connected with a first node, and a gate connected with a first emission control line, a fifth transistor including a first electrode connected with a third node, a second electrode, and a gate connected with a second emission control line, a sixth transistor including a first electrode connected with a read-out line, a second electrode connected with the third node, and a gate connected a the read-out/initialization control line, a capacitor connected between the first node and the second node, and an organic light-emitting diode.
    Type: Application
    Filed: February 28, 2024
    Publication date: September 26, 2024
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Uijong SONG, Sunkwon KIM, Hyungjoong KIM, Seongyoung RYU, Yilho LEE, Heejin LEE
  • Patent number: 12051475
    Abstract: A system for verifying memory-read capabilities includes a memory device, having a memory cell array that is encoded with verification information, and a memory-read controller, coupled to the memory device and configured to execute stored process steps. The verification information includes first bit values encoded in a first row of the memory cell array and second bit values encoded in a second row of the memory cell array. Each of the second bit values on a same bit line as a corresponding one of the first bit values has an inverse value as the corresponding one of the first bit values. The stored process steps include steps to: read the verification information from the memory device; determine, by comparison to a pre-stored bit string, whether the first bit values and the second bit values are correct; and in response to an affirmative determination, initiate normal data-read operations.
    Type: Grant
    Filed: April 14, 2022
    Date of Patent: July 30, 2024
    Assignee: NXP B.V.
    Inventor: Hyungjoong Lee
  • Publication number: 20230335210
    Abstract: A system for verifying memory-read capabilities includes a memory device, having a memory cell array that is encoded with verification information, and a memory-read controller, coupled to the memory device and configured to execute stored process steps. The verification information includes first bit values encoded in a first row of the memory cell array and second bit values encoded in a second row of the memory cell array. Each of the second bit values on a same bit line as a corresponding one of the first bit values has an inverse value as the corresponding one of the first bit values. The stored process steps include steps to: read the verification information from the memory device; determine, by comparison to a pre-stored bit string, whether the first bit values and the second bit values are correct; and in response to an affirmative determination, initiate normal data-read operations.
    Type: Application
    Filed: April 14, 2022
    Publication date: October 19, 2023
    Inventor: Hyungjoong Lee