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    • 14. 发明授权
    • Digital content distribution and subscription system
    • 用于分发和订阅数字内容
    • EP2378733B1
    • 2013-03-13
    • EP10014306.4
    • 2001-11-06
    • AOL Inc.
    • Bi, DepengGladwin, Stephen ChristopherDenkinger, Troy StevenFranklin, Timothy ScottClifone, Bart RichardWalsh, Anne MarieSpurgat, Jeffrey Jonathan
    • H04N21/61H04N21/472H04N21/475H04N21/254H04L29/06H04N21/258H04N21/658H04N21/2543H04N21/6334H04N21/482H04N21/81H04N21/4143H04N21/442
    • G06F21/105G06F21/10G06F2221/2101G06F2221/2117G06Q30/06G06Q40/04G06Q2220/16H04L9/30H04L63/0428H04L63/0457H04L63/06H04L63/08H04L63/0807H04L63/10H04L2463/101H04N21/2541H04N21/2543H04N21/25891H04N21/4143H04N21/44204H04N21/472H04N21/4753H04N21/4828H04N21/6125H04N21/63345H04N21/6582H04N21/8113
    • A digital content distribution and subscription system for digital data files, such as digital audio and video data files, which provides subscribers, for example, with music or video from locally-stored digital files or on demand for a fee. The system may optionally provide streaming digital data as well as locally-stored digital files. After registration onto the system, a subscriber may select from a relatively wide variety of available digital content, for example, music content ripped from a high-quality digital source to provide relatively consistent digital quality to subscribers. In one exemplary implementation, subscribers may subscribe to a predetermined number of songs slots for a period of time, for example, about 200-400 song slots per month. The subscriber may then select songs from various playlists which causes encrypted digital audio files for the selected music to be downloaded to the subscribers's PC. A license key is downloaded to the subscribers' PC to "unlock" the selected songs to enable them to be decoded and played on the subscriber's personal computer or remote audio equipment for a predetermined time period. At the expiration of the predetermined time period, the license key expires, thereby preventing further playback of the encrypted audio data files. The selections of each subscriber are tabulated for the purpose of royality tracking and payment of an appropriate license fee to the holders of copyright rights for the selections. The system may also be used to provide additional digital information, such as special events which may be live or pre-recorded. The digital content distribution and subscription system includes a digital content management system, a system for token-based authentication allowing secure data retrieval and a royality administration system. The digital content management system manages the amount of digital content data delivered to a client over a predetermined period. The server manages the number client access devices, such as personal computers (PC), which can access the digital content over a predetermined time period. The token-based authentication system provides for anonymous authentication that does not require knowledge of the individual user requesting the download of digital content data or real-time access to user account information. Instead, the token-based authentication system embeds the authentication information, or token, in the download request information itself. In this way, the download or content server authenticates the download request using the token contained in the download request information and therefore does not require any additional information to carry out this authentication, such as access to user account information. The royality administration system operates as part of a digital content subscription service to track usage of digital content, for example, music, by subscribers of the digital content subscription service and to calculate royalty payments to, for example, publishing and performance rights holders of the digital music. The digital content subscription service makes available to subscribers a plethora of, for example, digital music. Legally a music subscription service is required to compansate rights holders of the digital content for use of their works. In order to accurately provide compensation, the digital content subscrition service must track usage of the digital music by subscribers of the digital content subscription service. The digital content subscription service also maintans accurate information on the rights holders of the digital music in order to facilitate calculation of royalty payments. With the digital music usage information and the rights holder information, the digital content subscription service is able to effectively and accurately calculate payment to the digital music rights holders for use of their works. The current system provides subscribers with relatively high-quality consistent digital audio files and allows subscribers to select from a relatively wide range of stored digital audio files on demand while not violating copyright laws.
    • 20. 发明公开
    • Wetzstab und Verfahren zu dessen Herstellung
    • Wetzstab和Verfahren zu dessen Herstellung
    • EP2147748A1
    • 2010-01-27
    • EP08013367.1
    • 2008-07-24
    • High Tech Ceramic eK
    • Rieser, Udo
    • B24D15/08
    • B24D15/08
    • Bei einem Wetzstab mit einer als Wetzfläche ausgebildeten Umfangsfläche, wobei der Wetzstab (1) aus Material mit vorgegebener Körnung gebildet ist, weist die Umfangsfläche mindestens zwei Paare (2, 3) von jeweils einander quer zur Stabslängsrichtung gegenüberliegenden Wetzflächen (2a, 2b, 3a, 3b) aus unterschiedlichen Materialien auf, wobei die Wetzflächen-Paare (2, 3) in Umfangsrichtung des Wetzstabes (1) zueinander versetzt angeordnet sind und ein erstes (2) der Wetzflächen-Paare (2, 3) aus einem ersten Material mit einer ersten Körnung und das mindestens zweite Wetzflächen-Paar (3) aus einem zweiten Material mit einer zweiten Körnung gebildet ist. Ferner wird ein Verfahren zur Herstellung eines solchen Wetzstabes (1) vorgeschlagen.
    • 杆(1)具有具有两对(2,3)的磨削表面(2a,2b,3a,3b)的外周表面。 杆由具有预定晶粒尺寸的材料形成。 每对的磨边表面横向于杆的纵向彼此相对。 这些磨边表面相对于杆的圆周方向彼此偏移地布置。 磨削表面对由具有相应晶粒尺寸的两种相应材料形成。 四个部分棒由相同的材料形成,例如 氧化铝陶瓷。 还包括用于制造磨刀杆的方法的独立权利要求。