Systems and methods for content distribution including resending data

• US 20080154633A1
• Filed: 02/08/2008
• Published: 06/26/2008
• Est. Priority Date: 09/07/1999
• Status: Abandoned Application

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Oishi, Tateo, Ishibashi, Yoshihito, Muto, Akihiro, Kitahara, Jun, Shirai, Taizou
• Application Number:
  US12/068,674
• Publication Number:
  US 20080154633A1
• Time in Patent Office: Days
• US Class Current: 705/1
• CPC Class Codes: G06F 21/10 Protecting distributed programs or content, e.g. vending or licensing of copyrighted material protection in video systems or pay television H04N7/16 ; Digital rights management [DRM]
• CPC Class Codes: G10K 15/04 Sound-producing devices G10K15/02 takes precedence
• CPC Class Codes: G11B 20/00086 Circuits for prevention of unauthorised reproduction or copying, e.g. piracy indicating unauthorised use of record carriers in general G11B23/28; scrambling for television signal recording H04N5/913; network architectures or network protocols for network security H04L63/00; cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
• CPC Class Codes: G11B 20/00166 involving measures which result in a restriction to authorised contents recorded on or reproduced from a record carrier, e.g. music or software
• CPC Class Codes: G11B 20/0021 involving encryption or decryption of contents recorded on or reproduced from a record carrier
• CPC Class Codes: H04L 9/0894 Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
• CPC Class Codes: H04L 9/3247 involving digital signatures
• CPC Class Codes: H04N 2005/91342 the copy protection signal being an authentication signal
• CPC Class Codes: H04N 2005/91364 the video signal being scrambled
• CPC Class Codes: H04N 21/4334 Recording operations recording of a television signal H04N5/76; arrangements for recording or accumulating broadcast information or broadcast-related information H04H60/27
• CPC Class Codes: H04N 21/4532 involving end-user characteristics, e.g. viewer profile, preferences monitoring of user activities for profile generation for accessing a video database G06F16/739; user profiles in network data switching protocols H04L67/306; processing of user preferences or user profiles in wireless networks H04W8/18
• CPC Class Codes: H04N 21/4627 Rights management associated to the content security in data switching network management H04L41/28; security management or policies for network security H04L63/20; access security in wireless networks H04W12/08
• CPC Class Codes: H04N 21/8355 involving usage data, e.g. number of copies or viewings allowed
• CPC Class Codes: H04N 5/913 for scrambling ; for copy protection
• CPC Class Codes: H04N 5/9206 the additional signal being a character code signal
• CPC Class Codes: H04N 7/1675 Providing digital key or authorisation information for generation or regeneration of the scrambling sequence pseudo-random number generators in general G06F7/58

Abstract

An information receiving apparatus receives identification information and encrypted identification information and makes a comparison between them to allow prevention of illegal utilization of contents data. Also, a data storage apparatus can record contents data encrypted by a content key and the content key so that the contents data can be reproduced on other apparatuses to improve versatility. Moreover, a management apparatus can manage the contents data in the data storage apparatus to allow other apparatuses to utilize it. And also, an information regulating apparatus can verify a signature on available data to prevent illegal utilization of the contents data. Furthermore, the data storage apparatus can store the content key, its handling policies, the contents data encrypted by the content key and its license conditions information so as to safely provide the contents data. In addition, an information recording apparatus can select favorite contents data and store it on the data storage apparatus. Furthermore, the information receiving apparatus can prevent utilization of provision-prohibited contents data by a provision prohibition list.

Claims

1-104. -104. (canceled)

105. An information sending system for sending predetermined contents data from an information sending apparatus to an information receiving apparatus, wherein:

said information sending apparatus comprises means for sending, together with said contents data, data of the maximum number of times of possible resending predefined to the contents data; and

said information receiving apparatus comprises;

means for receiving, together with said contents data, data of maximum number of times;

means for generating data of the remaining number of times of possible resending of said contents data based on said data of maximum number of times; and

means for resending, that is, sending data of the remaining number of times together with said contents data.

106. The information sending system according to claim 105, wherein:

said means for generating data of the number of times of said information receiving apparatus generates, based on a source of said contents data, a via apparatus data showing an apparatus by way of which the contents data is sent; and

said means for resending sends said via-apparatus data together with said contents data and said data of the remaining number of times.

107. An information sending apparatus for sending predetermined contents data to an information receiving apparatus, comprising means for sending to said information receiving apparatus, together with said contents data, data of the maximum number of times of possible resending predefined to the contents data.

108. An information receiving apparatus for receiving predetermined contents data sent from an information sending apparatus, comprising:

means for receiving said contents data and data of the maximum number of times of possible resending predefined to the contents data, sent from said information sending apparatus; and

means for generating data of the remaining number of times of possible resending of said contents data based on said data of maximum number of times; and

means for resending, that is, sending data of the remaining number of times together with said contents data.

109. The information receiving apparatus according to claim 108, wherein:

said means for generating data of the number of times generates, based on a source of said contents data, a via-apparatus data showing an apparatus by way of which the contents data is sent; and

said means for resending sends said via-apparatus data together with said contents data and said data of the remaining number of times.

110. An information sending method for sending predetermined contents data from an information sending apparatus to an information receiving apparatus, comprising:

a sending step of sending by said information sending apparatus, together with said contents data, data of the maximum number of times of possible resending predefined to the contents data;

a receiving step of, by said information receiving apparatus, said data of maximum number of times together with said contents data;

a number of times data generating step of, by said information receiving apparatus, generating data of the remaining number of times of possible resending of said contents data based on said data of maximum number of times; and

a resending step of, by said information receiving apparatus, sending data of the remaining number of times together with said contents data.

111. The information sending method according to claim 110, wherein:

said number of times data generating step generates, based on a source of said contents data, a via-apparatus data showing an apparatus by way of which the contents data is sent; and

said resending step sends said via-apparatus data together with said contents data and said data of the remaining number of times.

112. An information sending method for sending predetermined contents data to an information receiving apparatus, comprising a sending step of sending to said information receiving apparatus, together with said contents data, data of the maximum number of times of possible resending predefined to the contents data.

113. An information receiving method for receiving predetermined contents data sent from an information sending apparatus, comprising:

a receiving step of receiving said contents data and data of the maximum number of times of possible resending predefined to the contents data sent from an information sending apparatus;

a number of times data generating step of generating data of the remaining number of times of possible resending of said contents data based on said data of maximum number of times; and

a resending step of sending data of said remaining number of times together with said contents data.

114. The information receiving method according to claim 113, wherein:

said means for generating data of the number of times generates, based on a source of said contents data, a via-apparatus data showing an apparatus by way of which the contents data is sent; and

said means for resending sends said via-apparatus data together with said contents data and said data of the remaining number of times.

115. A program storage medium storing a predetermined program and supplying the program to an information sending apparatus, characterized in that said program comprises:

a sending step of sending to the information receiving apparatus, together with predetermine contents data, data of the maximum number of times of possible resending predefined to the contents data.

116. A program storage medium storing a predetermined program and supplying the program to an information receiving apparatus, characterized in that said program comprises:

a receiving step of receiving predetermined contents data and data of the maximum number of times of possible resending predefined to the contents data sent from an information sending apparatus; and

a number of times data generating step of generating data of the remaining number of times of possible resending of said contents data based on said data of maximum number of times; and

a resending step of sending data of the remaining number of times together with said contents data.

117. The program storage medium according to claim 116, wherein:

said means for generating data of the number of times of said program generates, based on a source of said contents data, a via-apparatus data showing an apparatus by way of which the contents data is sent; and

said means for resending sends said via-apparatus data together with said contents data and said data of the remaining number of times.

118-395. -395. (canceled)