Patents by Inventor I-Kang Frank Yu

I-Kang Frank Yu 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).

  • Single-chip multi-media card/secure digital (MMC/SD) controller reading power-on boot code from integrated flash memory for user storage
    Patent number: 7865630
    Abstract: A Multi-Media Card/Secure Digital (MMC/SD) single-chip flash device contains a MMC/SD flash microcontroller and flash mass storage blocks containing flash memory arrays that are block-addressable rather than randomly-addressable. MMC/SD transactions from a host MMC/SD bus are read by a bus transceiver on the MMC/SD flash microcontroller. Various routines that execute on a CPU in the MMC/SD flash microcontroller are activated in response to commands in the MMC/SD transactions. A flash-memory controller in the MMC/SD flash microcontroller transfers data from the bus transceiver to the flash mass storage blocks for storage. Rather than boot from an internal ROM coupled to the CPU, a boot loader is transferred by DMA from the first page of the flash mass storage block to an internal RAM. The flash memory is automatically read from the first page at power-on. The CPU then executes the boot loader from the internal RAM to load the control program.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: January 4, 2011
    Assignee: Super Talent Electronics, Inc.
    Inventors: I-Kang Frank Yu, Abraham C. Ma, Charles C. Lee
  • Dual-mode switch for multi-media card/secure digital (MMC/SD) controller reading power-on boot code from integrated flash memory for user storage
    Patent number: 7809862
    Abstract: A Multi-Media Card/Secure Digital (MMC/SD) single-chip flash device contains a MMC/SD flash microcontroller and flash mass storage blocks containing flash memory arrays that are block-addressable rather than randomly-addressable. MMC/SD transactions from a host MMC/SD bus are read by a bus transceiver on the MMC/SD flash microcontroller. Various routines that execute on a CPU in the MMC/SD flash microcontroller are activated in response to commands in the MMC/SD transactions. A flash-memory controller in the MMC/SD flash microcontroller transfers data from the bus transceiver to the flash mass storage blocks for storage. Rather than boot from an internal ROM coupled to the CPU, a boot loader is transferred by DMA from the first page of the flash mass storage block to an internal RAM. The flash memory is automatically read from the first page at power-on. The CPU then executes the boot loader from the internal RAM to load the control program.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: October 5, 2010
    Assignee: Super Talent Electronics, Inc.
    Inventors: I-Kang Frank Yu, Abraham C. Ma, Charles C. Lee