Patents by Inventor Masami Hashizume

Masami Hashizume 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).

  • Synchronous transfer mode/asynchronous transfer mode converting transmission path terminating apparatus
    Patent number: 5920563
    Abstract: In a synchronous transfer mode/asynchronous transfer mode converting transmission path terminating apparatus, a receive synchronous transfer mode processing unit has an out of synchronization detecting unit for detecting out of synchronization information, and an asynchronous transfer mode cell extracting unit has an asynchronous transfer mode cell synchronizing unit for forcibly outputting a signal representing out of synchronization when receiving the out of synchronization information from the out of synchronization detecting unit, an asynchronous transfer mode cell discard judging unit for forcibly outputting a cell discard signal when receiving the out of synchronization information from the out of synchronization detecting unit, and a storage write controlling unit for forcibly inhibiting an asynchronous transfer mode cell from being written in a storage unit when receiving the out of synchronization information from the out of synchronization detecting unit, thereby always capturing accurate data (cell
    Type: Grant
    Filed: February 1, 1997
    Date of Patent: July 6, 1999
    Assignee: Fujitsu Limited
    Inventors: Satoshi Fukui, Toshikazu Ota, Hiroyuki Shimono, Masami Hashizume, Toshiharu Sakai, Tomoyuki Yamaguchi