Patent · US Expired

Counting apparatus, counting method, and computer readable storage medium

US6578161B1 · kind B1 · utility

6Cited by
3References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 7, 1999
Grant dateJun 10, 2003
Priority date
Expiry dateSep 7, 2019

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06Q20/343
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

A counting apparatus comprising an execution detection circuit for detecting the execution of a predetermined operation; plural memory circuits for commonly storing the information on the number of execution at each detection of the execution; a destruction detection circuit for detecting, at the storage of the information, whether the information stored in each memory circuit is destructed; and a correction circuit adapted, upon detection that the information of a memory circuit is destructed, to correct the destructed information with the information of another memory circuit.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.