Patents by Inventor Hideaki Oi

Hideaki Oi 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).

  • Unicast-to-multicast converting apparatus, method, and computer program product, and monitoring system comprising the same
    Patent number: 7525927
    Abstract: Herein disclosed is a unicast-to-multicast converting apparatus comprising: a unicast network interface for receiving monitoring data including a plurality of UDP unicast data packets; a packet buffer for temporally storing the UDP unicast data packets received from the unicast network interface; a converting table storage section for storing conversion key information and a conversion rule table indicative of relationship between source entities and destination entities; a converting judging section for sequentially comparing each of the UDP unicast data packets stored in the packet buffer with the conversion key information stored in the converting table storage section to judge that a UDP unicast data packet is to be multicast when the UDP unicast data packet matches with the conversion key information and determining UDP unicast data packets to be multicast; a converting section for converting the UDP unicast data packets to be multicast determined by the converting judging section into a plurality of UDP
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: April 28, 2009
    Assignee: Panasonic Corporation
    Inventors: Masaaki Sato, Shintaro Nagai, Hideaki Oi, Sumio Yokomitsu
  • Unicast-to-multicast converting apparatus, method, and computer program product, and monitoring system comprising the same
    Publication number: 20030133458
    Abstract: Herein disclosed is a unicast-to-multicast converting apparatus comprising: a unicast network interface for receiving monitoring data including a plurality of UDP unicast data packets; a packet buffer for temporally storing the UDP unicast data packets received from the unicast network interface; a converting table storage section for storing conversion key information and a conversion rule table indicative of relationship between source entities and destination entities; a converting judging section for sequentially comparing each of the UDP unicast data packets stored in the packet buffer with the conversion key information stored in the converting table storage section to judge that a UDP unicast data packet is to be multicast when the UDP unicast data packet matches with the conversion key information and determining UDP unicast data packets to be multicast; a converting section for converting the UDP unicast data packets to be multicast determined by the converting judging section into a plurality of UDP
    Type: Application
    Filed: January 8, 2003
    Publication date: July 17, 2003
    Inventors: Masaaki Sato, Shintaro Nagai, Hideaki Oi, Sumio Yokomitsu