Patents by Inventor Yonggen Jin

Yonggen Jin 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).

  • Storage system and data caching method in the system
    Patent number: 7337281
    Abstract: A channel adapter connected to a host has a local cache memory. The channel adapter duplexes and writes the write-data in the local cache memory in response to a data-write request from the host. Then, the channel adapter sends the write-completion to the host and transfers all of the write-data within the local cache memory to the main cache memory in asynchronous timing. The channel adapter manages directory information of the data within the local cache memory. In response to a data-read request from the host, the channel adapter checks whether the read-data hits or not in the local cache memory based on the directory information. If the read-data hits, the read-data is transferred from the local cache memory to the host.
    Type: Grant
    Filed: February 3, 2004
    Date of Patent: February 26, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Yonggen Jin, Youichi Gotoh, Shinichi Nakayama
  • Storage system and data caching method in the system
    Publication number: 20050114592
    Abstract: A channel adapter connected to a host has a local cache memory. The channel adapter duplexes and writes the write-data in the local cache memory in response to a data-write request from the host. Then, the channel adapter sends the write-completion to the host and transfers all of the write-data within the local cache memory to the main cache memory in asynchronous timing. The channel adapter manages directory information of the data within the local cache memory. In response to a data-read request from the host, the channel adapter checks whether the read-data hits or not in the local cache memory based on the directory information. If the read-data hits, the read-data is transferred from the local cache memory to the host.
    Type: Application
    Filed: February 3, 2004
    Publication date: May 26, 2005
    Inventors: Yonggen Jin, Youichi Gotoh, Shinichi Nakayama