Record-playback device

• US 9,396,753 B2
• Filed: 08/20/2009
• Issued: 07/19/2016
• Est. Priority Date: 08/22/2008
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Inventors: Takao, Naoya, Takayama, Seigo, Tanikawa, Kentaro, Tamano, Hirokazu
• Primary Examiner(s): Dang, Hung
• Assistant Examiner(s): Park, Sunghyoun
• Application Number:
  US12/919,884
• Publication Number:
  US 20110002593A1
• Time in Patent Office: 2,525 Days
• Field of Search: 386/230, 386/232
• US Class Current: 1/1
• 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 20/0021 involving encryption or decryption of contents recorded on or reproduced from a record carrier
• CPC Class Codes: G11B 20/00753 wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags
• CPC Class Codes: G11B 20/0084 wherein the usage restriction can be expressed as a specific time or date
• CPC Class Codes: G11B 20/00847 wherein the usage restriction is defined by a licence file
• CPC Class Codes: G11B 2220/2516 Hard disks
• CPC Class Codes: H04N 21/2353 specifically adapted to content descriptors, e.g. coding, compressing or processing of metadata
• CPC Class Codes: H04N 21/4325 by playing back content from the storage medium reproduction of recorded television signals H04N5/76; reproduction of recorded television signals H04N9/79
• 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 21/44224 Monitoring of user activity on external systems, e.g. Internet browsing
• 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 21/47 End-user applications
• CPC Class Codes: H04N 21/47214 for content reservation or setting reminders; for requesting event notification, e.g. of sport results or stock market stock exchange data over packet-switching network H04L12/1804; push services over packet-switching network H04L12/1859; notification of incoming messages in packet switching networks H04L51/224
• CPC Class Codes: H04N 21/4753 for user identification, e.g. by entering a PIN or password cryptographic authentication protocols H04L9/32; networks authentication protocols H04L63/08
• CPC Class Codes: H04N 21/4821 using a grid, e.g. sorted out by channel and broadcast time
• CPC Class Codes: H04N 21/4882 for displaying messages, e.g. warnings, reminders arrangements for providing short real-time information to substation in data switching networks H04L12/1895
• CPC Class Codes: H04N 21/8133 specifically related to the content, e.g. biography of the actors in a movie, detailed information about an article seen in a video program
• CPC Class Codes: H04N 21/8355 involving usage data, e.g. number of copies or viewings allowed
• CPC Class Codes: H04N 21/8405 represented by keywords
• CPC Class Codes: H04N 5/765 : Interface circuits between an apparatus for recording and another apparatus
• CPC Class Codes: H04N 5/775 : between a recording apparatus and a television receiver
• CPC Class Codes: H04N 5/782 : on tape

Abstract

A recording and playback apparatus capable of recording a content downloaded from a server to a recording medium, and playing back the content, includes a recording unit configured to download the content with a playback time limit from the server and record the content to the recording medium, a playback unit configured to play back the content recorded in the recording medium, and a display data generating unit configured to generate data of a list image for displaying a list of information of each of part or all of contents recorded in the recording medium. The data of a list image is generated so that, before the playback unit plays back a content with a playback time limit, the list image includes information indicating an allowed playback period of the content, and, after the playback unit plays back the content, the list image includes information indicating the playback time limit of the content.

Claims

1. A recording and playback apparatus capable of recording a content downloaded from a server to a recording medium, and playing back the content, comprising:

a recording unit configured to download the content with a playback time limit from the server and record the content to the recording medium;

a playback unit configured to play back the content recorded in the recording medium; and

a display data generating unit configured to generate data of a list image for displaying a list of information of each of part or all of contents recorded in the recording medium,

wherein the display data generating unit generates the data of a list image so that, before the playback unit plays back a content with a playback time limit, the list image includes information indicating an allowed playback period of the content, and after the playback unit plays back the content, the list image includes information indicating the playback time limit of the content.

2. The recording and playback apparatus according to claim 1, wherein the display data generating unit determines whether the content has ever been played back at least temporarily or not based on whether license information of the content is obtained or not.