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Method for detecting intermittent error in volatile memory

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G06F-011/16
출원번호 US-0806076 (1985-12-05)
우선권정보 JP-0263157 (1984-12-14)
발명자 / 주소
  • Ishii Takashi (Yamato JPX)
출원인 / 주소
  • International Business Machines Corporation (Armonk NY 02)
인용정보 피인용 횟수 : 100  인용 특허 : 3

초록

Primary and secondary data save areas are established in a volatile memory (CMOS) which is backed up with a battery. The same predetermined data are stored in the primary and secondary data areas together with check sum. At a power on time, the data of the primary area are added together and the dat

대표청구항

A method for checking data loss in a battery backed volatile memory to distinguish between geometrically uniform data loss resulting from power decay throughout said memory and geometrically random data loss resulting from another cause, comprising the steps of, processing data stored in two separat

이 특허에 인용된 특허 (3)

  1. Hellwig Friedrich-Wilhelm (Hemhofen DEX) Seeliger Christian (Grossenbach DEX), Device for testing programs for numerical control of machine tools.
  2. Check ; Jr. Frank T. (Orange CT), Electronic postage meter having redundant memory.
  3. Ouchi ; Norman Ken, System for recovering data stored in failed memory unit.

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