Patent ID: 8848496
Filing Date: 2014-09-30
Classification: G11B

Abstract:
1. A recording medium comprising an IC chip, the IC chip being mounted on the recording medium and including circuitry configured to: record information; transmit and receive information to and from an external apparatus without contacting the external apparatus; and communicate with the external apparatus and execute mutual authentication between the IC chip and the external apparatus for permitting access to the recorded information, wherein data of one or more kinds of software is recorded using said circuitry, at least identification information for respective kinds of software recorded on a recording surface of the recording medium, key information necessary for installation of the respective kinds of software, and usage control information indicating a number of installations available for installation of the respective kinds of software are recorded using said circuitry of the IC chip, said identification information and said usage information being displayed on a display screen to a user prior to said mutual authentication between the IC chip and the external apparatus, the key information is readout to the external apparatus only when said mutual authentication is correctly performed between the IC chip and the external apparatus, and rewriting of the usage control information, stored using said circuitry of the IC chip, by the external apparatus is allowed only when said mutual authentication is correctly performed between the IC chip and the external apparatus.