Panasonic Corporation

Shintaro Nagai

Masaaki Sato

Yasuhiro Agata

Sumio Yokomitsu

Osamu Ichikawa

Tomohiro Kurozumi

Hideaki Oi

Each of a plurality of redundant memories includes a plurality of memory cells and is operable to be relieved when a defective cell exists. This plurality of redundant memories can operate independently of each other. A relief processing portion is shared by this plurality of redundant memories. A test circuit inspects the plurality of redundant memories. When the test circuit determines that a defective cell exists, the test circuit outputs relief information to relieve the defective cell. The relief processing portion has a plurality of defect relief portions each having a relief information storage portion operable to store the relief information and performs the processing of relieving the plurality of redundant memories.

Semiconductor device with a relief processing portion

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 multicast data packets each to be multicast to a plurality of destination entities in accordance with the conversion rule table stored in the converting table storage section; and a multicast network interface for multicasting the UDP multicast data packets converted by the converting section to the destination entities.

Unicast-to-multicast converting apparatus, method, and computer program product, and monitoring system comprising the same

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Kanagawa, Japan

Shintaro Nagai