×

Recording medium that can prevent fraudulent usage of content and content rental system using such recording medium

  • US 20020081097A1
  • Filed: 12/20/2001
  • Published: 06/27/2002
  • Est. Priority Date: 12/27/2000
  • Status: Abandoned Application
First Claim
Patent Images

1. A recording medium in which content is recorded, comprising:

  • an accumulation unit accumulating power, a discharge unit causing said accumulation unit discharge, a measurement unit measuring voltage of said accumulation unit, and a control unit controlling reproduction of said content based on a value of voltage measured by said measurement unit.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×