US 10,854,237 B2Granted

Digital information recording apparatus, reproducing apparatus and transmitting apparatus

AssigneeMaxell, Ltd.

InventorsHiroo Okamoto, Hitoaki Owashi, Atsushi Yoshioka

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Abstract

A digital information recording apparatus includes a recording circuit for recording information of a retention period included in the digital information and indicating a period for permitting the digital information to be held in the recording medium, starting with a time at which the digital information is recorded on the recording medium; and information of a playback permission period included in the digital information and indicating a period for permitting the digital information to be played back starting with a time at which the information is reproduced initially following recording of the digital information on the recording medium, permitting temporary recording or copying for the information permitted for “copy never” or “copy one generation.”

Claims39

Dependent claims

A reproducing system, comprising:

a receiver configured to receive an audio/video information encrypted according to a predetermined encryption method and control information related to the audio/video information, the control information for controlling reproduction of the audio/video information after distribution and at a location different from a distribution location;
a memory configured to at least temporarily store at least a portion of the audio/video information and at least a portion of the control information;
a detector configured to detect at least a portion of the control information, including data indicative of a first period for enabling a reproduction of the audio/video information and disabling reproduction after expiration of a prescribed time and a second period, which begins at a start of an initial reproduction of the audio/video information within the first period and is shorter than the first period, for enabling a reproduction of the audio/video information and disabling reproduction after expiration of a prescribed time following the start of the initial reproduction of the audio/video information;
a decryptor configured to decrypt the audio/video information encrypted according to the predetermined encryption method;
a reproducer configured to reproduce at least a portion of the audio/video information from the memory consistent with restrictions associated with the first period and the second period through decryption by the decryptor;
and
a controller configured to control at least the reproducer,
wherein, in a case where the controller confirms that an elapsed time from a start of the first period is within the first period and an elapsed time from a start of an initial reproduction of the audio/video information is within the second period, the controller is configured to, based on at least a portion of the control information detected by the detector, allow the reproducer to reproduce the audio/video information,
wherein, in a case where the controller confirms that an elapsed time from a start of the first period is out of the first period even if the controller is configured to control the reproducer to execute a start of an initial reproduction of the audio/video information at a timing when a remaining time of the first period is less than the second period and an elapsed time from the start of the initial reproduction of the audio/video information is within the second period, the controller is configured to, based on at least a portion of the control information detected by the detector, not allow the reproducer to reproduce the audio/video information.

6 more elements

A reproducing system, comprising:

a receiver configured to receive an audio/video information which is encrypted according to a predetermined encryption method and is restricted from reproduction based on at least a portion of control information, including data indicative of a first period for enabling a reproduction of the audio/video information and disabling reproduction after expiration of a prescribed time and a second period, which begins at a start of an initial reproduction of the audio/video information within the first period and is shorter than the first period, for enabling a reproduction of the audio/video information and disabling reproduction after expiration of a prescribed time following the start of the initial reproduction of the audio/video information;
a decryptor configured to decrypt the audio/video information encrypted according to the predetermined encryption method and received by the receiver;
a reproducer configured to reproduce at least a portion of the audio/video information consistent with restrictions associated with the first period and the second period through decryption by the decryptor;
and
a controller configured to control at least the reproducer,
wherein, in a case where the controller confirms that an elapsed time from a start of the first period is within the first period and an elapsed time from a start of an initial reproduction of the audio/video information is within the second period, the controller is configured to, based on at least a portion of the control information, allow the reproducer to reproduce the audio/video information,
wherein, in a case where the controller confirms that an elapsed time from a start of the first period is out of the first period even if the controller is configured to control the reproducer to execute a start of an initial reproduction of the audio/video information at a timing when a remaining time of the first period is less than the second period and an elapsed time from the start of the initial reproduction of the audio/video information is within the second period, the controller is configured to, based on at least a portion of the control information, not allow the reproducer to reproduce the audio/video information.

4 more elements

A transmitting system, comprising:

a receiver configured to receive a request of a user;
a transmitter configured to transmit an audio/video information to an external reproducing system in response to the request of the user, wherein the audio/video information is encrypted according to a predetermined encryption method and is restricted from reproduction based on at least a portion of control information, including data indicative of a first period for enabling a reproduction of the audio/video information and disabling reproduction after expiration of a prescribed time and a second period, which begins at a start of an initial reproduction of the audio/video information within the first period and is shorter than the first period, for enabling a reproduction of the audio/video information and disabling reproduction after expiration of a prescribed time following the start of the initial reproduction of the audio/video information;
wherein at least a portion of the control information is for controlling a reproduction of the external reproducing system, in a case where an elapsed time from a start of the first period is within the first period and an elapsed time from a start of an initial reproduction of the audio/video information is within the second period, to allow the reproduction of the audio/video information by the external reproducing system, and, in a case where an elapsed time from a start of the first period is out of the first period even if a start of an initial reproduction of the audio/video information by the external reproducing system is executed at a timing when a remaining time of the first period is less than the second period and an elapsed time from the start of the initial reproduction of the audio/video information is within the second period, not to allow the external reproducing system to reproduce the audio/video information.

A reproducing system, comprising:

a receiving means for receiving an audio/video information encrypted according to a predetermined encryption method and control information related to the audio/video information, the control information for controlling reproduction of the audio/video information after distribution and at a location different from a distribution location;
a storing means for at least temporarily storing at least a portion of the audio/video information and at least a portion of the control information;
a detecting means for detecting at least a portion of the control information, including data indicative of a first period for enabling a reproduction of the audio/video information and disabling reproduction after expiration of a prescribed time and a second period, which begins at a start of an initial reproduction of the audio/video information within the first period and is shorter than the first period, for enabling a reproduction of the audio/video information and disabling reproduction after expiration of a prescribed time following the start of the initial reproduction of the audio/video information;
a decrypting means for decrypting the audio/video information encrypted according to the predetermined encryption method;
a reproducing means for reproducing at least a portion of the audio/video information from the memory consistent with restrictions associated with the first period and the second period through decryption by the decrypting means;
and
a controlling means for controlling at least the reproducer,
wherein, in a case where the controlling means confirms that an elapsed time from a start of the first period is within the first period and an elapsed time from a start of an initial reproduction of the audio/video information is within the second period, the controlling means is configured to, based on at least a portion of the control information detected by the detecting means, allow the reproducing means to reproduce the audio/video information,
wherein, in a case where the controlling means confirms that an elapsed time from a start of the first period is out of the first period even if the controlling means is configured to control the reproducing means to execute a start of an initial reproduction of the audio/video information at a timing when a remaining time of the first period is less than the second period and an elapsed time from the start of the initial reproduction of the audio/video information is within the second period, the controlling means is configured to, based on at least a portion of the control information detected by the detecting means, not allow the reproducing means to reproduce the audio/video information.

6 more elements

A reproducing system, comprising:

a receiving means for receiving an audio/video information which is encrypted according to a predetermined encryption method and is restricted from reproduction based on at least a portion of control information, including data indicative of a first period for enabling a reproduction of the audio/video information and disabling reproduction after expiration of a prescribed time and a second period, that which begins at a start of an initial reproduction of the audio/video information within the first period and is shorter than the first period, for enabling a reproduction of the audio/video information and disabling reproduction after expiration of a prescribed time following the start of the initial reproduction of the audio/video information;
a decrypting means for decrypting the audio/video information encrypted according to the predetermined encryption method and received by the receiving means;
a reproducing means for reproducing at least a portion of the audio/video information consistent with restrictions associated with the first period and the second period through decryption by the decrypting means;
and
a controlling means for controlling at least the reproducing means, wherein, in a case where the controlling means confirms that an elapsed time from a start of the first period is within the first period and an elapsed time from a start of an initial reproduction of the audio/video information is within the second period, the controlling means is configured to, based on at least a portion of the control information, allow the reproducing means to reproduce the audio/video information, wherein, in a case where the controlling means confirms that an elapsed time from a start of the first period is out of the first period even if the controlling means is configured to control the reproducing means to execute a start of an initial reproduction of the audio/video information at a timing when a remaining time of the first period is less than the second period and an elapsed time from the start of the initial reproduction of the audio/video information is within the second period, the controlling means is configured to, based on at least a portion of the control information, not allow the reproducing means to reproduce the audio/video information.

2 more elements

A transmitting system, comprising:

a receiving means for receiving a request of a user;
a transmitting means for transmitting an audio/video information to an external reproducing system in response to the request of the user, wherein the audio/video information is encrypted according to a predetermined encryption method and is restricted from reproduction based on at least a portion of control information, including data indicative of a first period for enabling a reproduction of the audio/video information and disabling reproduction after expiration of a prescribed time and a second period, which begins at a start of an initial reproduction of the audio/video information within the first period and is shorter than the first period, for enabling a reproduction of the audio/video information and disabling reproduction after expiration of a prescribed time following the start of the initial reproduction of the audio/video information;
wherein at least a portion of the control information is for controlling a reproduction of the external reproducing system, in a case where an elapsed time from a start of the first period is within the first period and an elapsed time from a start of an initial reproduction of the audio/video information is within the second period, to allow the reproduction of the audio/video information by the external reproducing system, and, in a case where an elapsed time from a start of the first period is out of the first period even if a start of an initial reproduction of the audio/video information by the external reproducing system is executed at a timing when a remaining time of the first period is less than the second period and an elapsed time from the start of the initial reproduction of the audio/video information is within the second period, not to allow the external reproducing system to reproduce the audio/video information.

A method, comprising:

receiving an audio/video information encrypted according to a predetermined encryption method and control information related to the audio/video information by a receiver, the control information for controlling reproduction of the audio/video information after distribution and at a location different from a distribution location;
at least temporarily storing at least a portion of the audio/video information and at least a portion of the control information in a memory;
detecting by a detector at least a portion of the control information, including data indicative of a first period for enabling a reproduction of the audio/video information and disabling reproduction after expiration of a prescribed time and a second period, which begins at a start of an initial reproduction of the audio/video information within the first period and is shorter than the first period, for enabling a reproduction of the audio/video information and disabling reproduction after expiration of a prescribed time following the start of the initial reproduction of the audio/video information;
decrypting the audio/video information encrypted according to the predetermined encryption method by a decryptor;
reproducing by a reproducer at least a portion of the audio/video information from the memory consistent with restrictions associated with the first period and the second period through decryption by the decryptor;
and
controlling at least the reproducer by a controller,
wherein, in a case where the controller confirms that an elapsed time from a start of the first period is within the first period and an elapsed time from a start of an initial reproduction of the audio/video information is within the second period, the controller is configured to, based on at least a portion of the control information detected by the detector, allow the reproducer to reproduce the audio/video information,
wherein, in a case where the controller confirms that an elapsed time from a start of the first period is out of the first period even if the controller is configured to control the reproducer to execute a start of an initial reproduction of the audio/video information at a timing when a remaining time of the first period is less than the second period and an elapsed time from the start of the initial reproduction of the audio/video information is within the second period, the controller is configured to, based on at least a portion of the control information detected by the detector, not allow the reproducer to reproduce the audio/video information.

6 more elements

A method, comprising:

receiving by a receiver an audio/video information which is encrypted according to a predetermined encryption method and is restricted from reproduction based on at least a portion of control information, including data indicative of a first period for enabling a reproduction of the audio/video information and disabling reproduction after expiration of a prescribed time and a second period, which begins at a start of an initial reproduction of the audio/video information within the first period and is shorter than the first period, for enabling a reproduction of the audio/video information and disabling reproduction after expiration of a prescribed time following the start of the initial reproduction of the audio/video information;
decrypting by a decryptor the audio/video information encrypted according to the predetermined encryption method and received by the receiver;
reproducing by a reproducer at least a portion of the audio/video information consistent with restrictions associated with the first period and the second period through decryption by the decryptor;
and
a controlling at least the reproducer,
wherein, in a case where the controller confirms that an elapsed time from a start of the first period is within the first period and an elapsed time from a start of an initial reproduction of the audio/video information is within the second period, the controller is configured to, based on at least a portion of the control information, allow the reproducer to reproduce the audio/video information,
wherein, in a case where the controller confirms that an elapsed time from a start of the first period is out of the first period even if the controller is configured to control the reproducer to execute a start of an initial reproduction of the audio/video information at a timing when a remaining time of the first period is less than the second period and an elapsed time from the start of the initial reproduction of the audio/video information is within the second period, the controller is configured to, based on at least a portion of the control information, not allow the reproducer to reproduce the audio/video information.

4 more elements

A method, comprising:

receiving a request of a user by a receiver;
transmitting an audio/video information to an external reproducing system by a transmitter in response to the request of the user, wherein the audio/video information is encrypted according to a predetermined encryption method and is restricted from reproduction based on at least a portion of control information, including data indicative of a first period for enabling a reproduction of the audio/video information and disabling reproduction after expiration of a prescribed time and a second period, which begins at a start of an initial reproduction of the audio/video information within the first period and is shorter than the first period, for enabling a reproduction of the audio/video information and disabling reproduction after expiration of a prescribed time following the start of the initial reproduction of the audio/video information;
wherein at least a portion of the control information is for controlling a reproduction of the external reproducing system, in a case where an elapsed time from a start of the first period is within the first period and an elapsed time from a start of an initial reproduction of the audio/video information is within the second period, to allow the reproduction of the audio/video information by the external reproducing system, and, in a case where an elapsed time from a start of the first period is out of the first period even if a start of an initial reproduction of the audio/video information by the external reproducing system is executed at a timing when a remaining time of the first period is less than the second period and an elapsed time from the start of the initial reproduction of the audio/video information is within the second period, not to allow the external reproducing system to reproduce the audio/video information.

Dependencies are inferred from the claim text.

Facts

Application: 16/703,071Filed 4 Dec 2019 · continuation
Priority: JP 2000-38489113 Dec 2000
Published: US 2020/0105300 A12 Apr 2020
Granted: 1 Dec 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification21 codes

G11B 20/00688
Involving measures which prevent a specific kind of data access: said measures preventing that a usable copy of recorded data can be made on…
G11B 19/06
Control of operating function, e.g. switching from recording to reproducing: by counting or timing of machine operations
G11B 19/122
By sensing distinguishing features of or on records, e.g. diameter end mark: involving the detection of an identification or authentication mark
G11B 20/00166
Circuits for prevention of unauthorised reproduction or copying, e.g. piracy: involving measures which result in a restriction to authorised…

Family

Application09/982,291Parent of this continuation · filed 19 Oct 2001
Application11/834,350Parent of this continuation · filed 6 Aug 2007
Application13/649,882Parent of this continuation · filed 11 Oct 2012
US 8,311,389 B2Parent of this continuation · filed 13 Nov 2012
Application14/713,515Parent of this continuation · filed 15 May 2015
US 9,083,942 B2Parent of this continuation · filed 14 Jul 2015
Application15/690,640Parent of this continuation · filed 30 Aug 2017
US 9,773,522 B2Parent of this continuation · filed 26 Sep 2017
US 2020/0105300 A1Pre-grant publication · published 2 Apr 2020
US 10,529,372 B2Parent of this continuation
US 2003/0077074 A1Published application
US 2008/0031591 A1Published application
US 2013/0094837 A1Published application
US 2015/0340059 A1Published application
US 2017/0365292 A1Published application
US 10,854,237 B2This patent

From the US filing history. Foreign family members aren’t listed.