×

Gathering data concerning publication usage

  • US 7,408,460 B2
  • Filed: 03/18/2005
  • Issued: 08/05/2008
  • Est. Priority Date: 03/19/2004
  • Status: Active Grant
First Claim
Patent Images

1. A method of producing data concerning usage of a publication by a person, comprising:

  • producing first data by means of a first data producing device in or on a publication, the first data representing usage of the publication by a person;

    producing time base data by means of a device in or on the publication; and

    producing usage data representing usage of the publication based on the first data and the time base data.

View all claims
  • 13 Assignments
Timeline View
Assignment View
    ×
    ×