Patents by Inventor Rung-Ji Shang

Rung-Ji Shang 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).

  • Raid-5 disk having cache memory
    Patent number: 7051156
    Abstract: A computer implemented cache memory for a RAID-5 configured disk storage system to achieve a significant enhancement of the data access and write speed of the raid disk. A memory cache is provided between the RAID-5 controller and the RAID-5 disks to speed up RAID-5 system volume accesses. It utilizes the time and spatial locality property of parity blocks. The memory cache is central in its physical architecture for easy management, better utilization, and easy application to a generalized computer system. The cache blocks are indexed by their physical disk identifier to improve the cache hit ratio and cache utilization.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: May 23, 2006
    Assignee: Synology Inc.
    Inventor: Rung-Ji Shang
  • RAID-5 disk having cache memory implemented using non-volatile RAM
    Patent number: 7035974
    Abstract: A computer implemented cache memory for a RAID-5 configured disk storage system to achieve a significant enhancement of the data access and write speed of the raid disk. A memory cache is provided between the RAID-5 controller and the RAID-5 disks to speed up RAID-5 system volume accesses. It utilizes the time and spatial locality property of parity blocks. The memory cache is central in its physical architecture for easy management, better utilization, and easy application to a generalized computer system. The cache blocks are indexed by their physical disk identifier to improve the cache hit ratio and cache utilization.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: April 25, 2006
    Assignee: Synology Inc.
    Inventor: Rung-Ji Shang
  • RAID-5 disk having cache memory implemented using non-volatile RAM
    Publication number: 20040093463
    Abstract: A computer implemented cache memory for a RAID-5 configured disk storage system to achieve a significant enhancement of the data access and write speed of the raid disk. A memory cache is provided between the RAID-5 controller and the RAID-5 disks to speed up RAID-5 system volume accesses. It utilizes the time and spatial locality property of parity blocks. The memory cache is central in its physical architecture for easy management, better utilization, and easy application to a generalized computer system. The cache blocks are indexed by their physical disk identifier to improve the cache hit ratio and cache utilization.
    Type: Application
    Filed: October 17, 2003
    Publication date: May 13, 2004
    Inventor: Rung-Ji Shang
  • Raid-5 disk having cache memory
    Publication number: 20040088485
    Abstract: A computer implemented cache memory for a RAID-5 configured disk storage system to achieve a significant enhancement of the data access and write speed of the raid disk. A memory cache is provided between the RAID-5 controller and the RAID-5 disks to speed up RAID-5 system volume accesses. It utilizes the time and spatial locality property of parity blocks. The memory cache is central in its physical architecture for easy management, better utilization, and easy application to a generalized computer system. The cache blocks are indexed by their physical disk identifier to improve the cache hit ratio and cache utilization.
    Type: Application
    Filed: October 17, 2003
    Publication date: May 6, 2004
    Inventor: Rung-Ji Shang