Patent ID: 7697155
Filing Date: 2010-04-13
Classification: G06F,G06Q,H04N

Abstract:
1. A document management apparatus that manages used documents, the apparatus comprising: an accumulation part that stores, in correspondence, document identifiers assigned to the used documents, a place where the documents were used, and a period of time that the documents were used; a computing part that computes document data usage efficiencies based on a history of the place where the documents were used and the period of time that the documents were used as stored in the accumulator device in correspondence with document identifiers for each document, wherein the document data usage efficiencies are a score which is computed by the computing part, which computes the score based on a summation of a predetermined score value assigned to a number of times a document was used and a predetermined score value assigned to the period of time that the documents were used as stored in the accumulator device; a specification part that analyzes document data usage efficiencies, computed by the computing part, of at least a portion of the document, and identifies documents that meet a predetermined threshold data efficiency; and an output part that outputs the documents identified by the specification part, wherein the document identifiers are stored in a wireless tag and the wireless tag has an optical sensor installed in the wireless tag, the optical sensor sensing brightness above a predetermined threshold brightness value, and wherein the optical sensor permits wireless communications for the wireless tag under the condition that the predetermined threshold brightness value is detected for a period that exceeds a predetermined time period.