Patents by Inventor Yi-Kang Wu

Yi-Kang Wu 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: 20030158995
    Abstract: A method for dynamic random access memory (DRAM) control with adjustable page size, including the following steps. During power-up initialization, a DRAM type is identified and a page mask for the DRAM type is set. Upon receipt of a DRAM access, an adjustable page portion of an internal address for the prior DRAM access and an adjustable page portion of an internal address for a next DRAM access are respectively determined in accordance with the page mask. A first portion of the internal address for the prior DRAM access is compared to a first portion of the internal address for the next DRAM access, and the adjustable page portion of the internal address for the prior DRAM access is compared to the adjustable page portion of the internal address for the next DRAM access, to determine whether the next DRAM access is a page hit or miss.
    Type: Application
    Filed: February 15, 2002
    Publication date: August 21, 2003
    Inventors: Ming-Hsien Lee, Yi-Kang Wu, Chien-Ming Chen
  • Publication number: 20020069319
    Abstract: A method and apparatus for refreshing dynamic memory is provided. The apparatus includes an ahead refresh controller having an ahead queue for refreshing dynamic random access memory (DRAM) when the memory request bus is idle. In such a way that no dynamic RAM bandwidth is wasted. The apparatus also comprises a normal refresh controller having a normal queue. Giving the normal refresh request in the normal priority unless the normal queue is full. The present invention allows the refresh cycles to gather on the basis of events to minimize the overheads. In other words, even when the system is running in peak performance, the normal refresh controller can largely compact the refresh cycles by means of the normal queue to decrease occurrence of interruption.
    Type: Application
    Filed: December 1, 2000
    Publication date: June 6, 2002
    Inventors: Ming-Hsien Lee, Yi-Kang Wu, Chih-Chiang Wen