US 6,970,317 B2Granted

Recording medium control method and recording medium adapter

AssigneeSony Corporation

InventorsTatsuya Kato, Yoshihisa Takayama

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Abstract

This invention provides a recording medium supportable device such as a library device (50), which authenticates each recording medium by identification information such as serial number and controls the recording medium by a command based on radio communication. In this case, a communication identifier like a session identifier corresponding to the identification number is set and provided and the communication identifier is included in a command at the time of execution of control, so that only a specified recording medium to be controlled carries out an operation corresponding to the command. When authenticating the recording medium, the identification information, which is proper information such as serial number, is confirmed through reliable communication using successive communication identifiers, and reliable authentication of the recording medium is carried out by several stages of communication.

Claims6

Dependent claims

A recording medium controlling method which is carried out by a recording medium supportable device having interface means capable of, with respect to a recording medium having memory means for storing identification information proper to the recording medium and communication means for executing non-contact data transfer with respect to the memory means, non-contact data transfer to/from the memory means by enabling execution of radio communication to/from the communication means, the method comprising:

an authentication step of sequentially communicating with the recording medium by using successive communication identifiers, thus confirming the identification information stored in the memory means of the recording medium and authenticating the recording medium;
a communication identifier provision step of setting a communication identifier for the recording medium authenticated at the authentication step and providing the communication identifier for the memory means of the recording medium;
and
a control step of specifying the recording medium by a command including the communication identifier and carrying out operation control of the memory means of the recording medium,
wherein at the authentication step, the identification information is confirmed by n stages of communication using first to n-th successive communication identifiers, and
wherein the communication identifier provided for the memory means further comprises a communication identifier reset step of resetting to an initial value at the communication identifier provision step.

3 more elements

A recording medium supportable device which supports a recording medium having memory means for storing identification information proper to the recording medium and communication means for carrying out non-contact data transfer with respect to the memory means, the device comprising:

interface means capable of carrying out non-contact data transfer to/from the memory means by executing radio communication to/from the communication means;
authentication means for causing the interface means to execute communication with the recording medium by using successive communication identifiers, thus confirming the identification information stored in the memory means of the recording medium and authenticating the recording medium;
communication identifier setting means for setting a communication identifier for the recording medium authenticated by the authentication means and causing the interface means to write the communication identifier to the memory means of the recording medium;
control means for specifying the recording medium by causing the interface means to output a command including the communication identifier, and carrying out operation control of the memory means of the recording medium;
and
communication identifier reset means for causing the interface means to output a command for resetting the communication identifier to an initial value, thus resetting to the initial value the communication identifier written in the memory means by the communication identifier setting means,
wherein the authentication means confirms the identification information by causing execution of n stages of communication between the interface means and the recording medium using first to n-th successive communication identifiers.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/297,708Filed 9 Apr 2002
Priority: JP P2001-1095389 Apr 2001
Published: US 2003/0179485 A125 Sep 2003
Granted: 29 Nov 2005
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

G11B 23/08714
Details: auxiliary features
G11B 15/07
By sensing auxiliary features on record carriers or containers, e.g. to stop machine near the end of a tape: on containers
G11B 15/68
Guiding containers , e.g. loading, ejecting cassettes: automatic cassette changing arrangements; automatic tape changing arrangements
G11B 15/6875
The cassettes being arranged in multiple levels: wherein the recorder or player is moved towards a selected cassette in the magazine