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    System, method, and service for delivering enhanced multimedia content on physical media
    21.
    发明授权
    System, method, and service for delivering enhanced multimedia content on physical media 失效
    用于在物理媒体上传送增强型多媒体内容的系统，方法和服务

    公开(公告)号：US07539307B2

    公开(公告)日：2009-05-26

    申请号：US10723403

    申请日：2003-11-26

    申请人： Jeffrey B. Lotspiech ,  Florian Pestoni

    发明人： Jeffrey B. Lotspiech ,  Florian Pestoni

    IPC分类号： H04N7/167

    CPC分类号： G11B20/00086 ,  G11B20/00094 ,  G11B20/00123 ,  G11B20/0021 ,  G11B20/00362 ,  G11B20/0071 ,  G11B20/00855 ,  G11B20/00978 ,  H04L63/0428 ,  H04L63/123

    摘要： Enhanced multimedia content on physical media interacts with the user through a media player and the Internet. Enhanced multimedia utilizes IDs for pieces of content on the media and a media key block. On the enhanced media is a file with a list of URLs. As the enhanced media plays a section requiring a set of keys for decryption, the media player accesses the URL for that section and obtains the decryption key. The decryption key may be purchased or provided for free. Secure encryption and transmission of these keys is accomplished by broadcast encryption using a media key block. Each media has a unique set of keys that allow the media player to process the media key block; however, each media follows a unique path through the media key block. All legitimate media players obtain the media key; circumvention devices cannot decipher the media key block.

    摘要翻译： 物理媒体上的增强型多媒体内容通过媒体播放器和互联网与用户交互。 增强多媒体利用媒体上的内容片段和媒体密钥块的ID。 在增强型媒体上是一个包含URL列表的文件。 由于增强媒体播放需要一组密钥进行解密的部分，媒体播放器访问该部分的URL并获得解密密钥。 解密密钥可以免费购买或提供。 通过使用媒体密钥块的广播加密来实现这些密钥的安全加密和传输。 每个媒体都有一组唯一的密钥，允许媒体播放器处理媒体密钥块; 然而，每个媒体遵循通过媒体密钥块的唯一路径。 所有合法媒体播放器获取媒体密钥; 规避设备不能破译媒体密钥块。

    SYSTEM AND METHOD FOR GUARANTEEING SOFTWARE INTEGRITY VIA COMBINED HARDWARE AND SOFTWARE AUTHENTICATION
    22.
    发明申请
    SYSTEM AND METHOD FOR GUARANTEEING SOFTWARE INTEGRITY VIA COMBINED HARDWARE AND SOFTWARE AUTHENTICATION 有权

    公开(公告)号：US20080313460A1

    公开(公告)日：2008-12-18

    申请号：US12134134

    申请日：2008-06-05

    申请人： Jeffrey B. Lotspiech

    发明人： Jeffrey B. Lotspiech

    IPC分类号： H04L9/00 ,  G06Q30/00

    CPC分类号： H04L9/3249 ,  G06F21/64 ,  G06Q10/087 ,  H04L9/302 ,  H04L9/3236 ,  H04L2209/127 ,  H04L2209/56 ,  H04L2209/603

    摘要： A system, method, and computer program product enabling individual user devices to authenticate and validate a digital message sent by a distribution center, without requiring transmissions to the distribution center. The center transmits the message with an appended modulus that is the product of two specially selected primes. The transmission also includes an appended authentication value that is based on an original message hash value, a new message hash value, and the modulus. The new message hash value is designed to be the center's public RSA key; a corresponding private RSA key is also computed. Individual user devices combine a digital signet, a public modulus, preferably unique hardware-based numbers, and an original message hash to compute a unique integrity value K. Subsequent messages are similarly processed to determine new integrity values K′, which equal K if and only if new messages originated from the center and have not been corrupted.

    Method of generating lines and curves of user specified thicknesses on a raster device
    24.
    发明授权
    Method of generating lines and curves of user specified thicknesses on a raster device 失效
    在光栅设备上生成用户指定厚度的线条和曲线的方法

    公开(公告)号：US5293472A

    公开(公告)日：1994-03-08

    申请号：US689164

    申请日：1991-04-22

    申请人： Jeffrey B. Lotspiech

    发明人： Jeffrey B. Lotspiech

    IPC分类号： G06F3/153 ,  G06T11/20 ,  G09G5/20 ,  G06F15/62

    CPC分类号： G06T11/203

    摘要： A method of drawing a straight or curved line of predetermined thickness on a raster device having a display or printed page consisting of a rectangular array of pels. Initially, a spine list is generated which comprises a digitization of a spine that can be swept by a preselected pen of thickness 2t centered on the spine to draw the line or "stroke." The next step is to generate penleft and penright lists representing the X and Y coordinate values of the left and right sides of the pen. Thereafter, left and right lists representing a pair of boundaries of the stroke are generated by starting at a first end of the spine list and sequentially moving toward a second end of the spine list. For each position in the spine list, the X, Y coordinate values thereof are added to the X and Y coordinate values in the penleft list. The left list is updated when any of the resulting sums yield an X value less than the current X value for the corresponding Y value in the left list. The right list is similarly updated for each position in the spine list when any of the resulting sums yield an X value more than the current X value for the corresponding Y value in the right list. Finally, the stroke is drawn by filling in between the left and right lists.

    摘要翻译： 在具有由矩形矩形阵列组成的显示或打印页的光栅装置上绘制预定厚度的直线或曲线的方法。 最初，产生一个脊柱列表，其中包括一个脊柱的数字化，脊柱可以被以脊柱为中心的厚度为2t的预选笔扫描以绘制线或“笔画”。 下一步是产生表示笔的左侧和右侧的X和Y坐标值的penleft和penright列表。 此后，通过从脊柱列表的第一端开始并顺序地朝向脊柱列表的第二端移动，生成表示笔画的一对边界的左右列表。 对于脊柱列表中的每个位置，其X，Y坐标值被添加到笔顺列表中的X和Y坐标值。 当任何结果总和产生小于左列表中相应Y值的当前X值的X值时，左列表将被更新。 当任何一个结果总和产生比正确列表中对应的Y值的当前X值大的X值时，对于脊柱列表中的每个位置，右侧列表也会相似更新。 最后，填写左右列表之间的笔画。

    AUTHENTICATION AND AUTHORIZATION OF A DEVICE BY A SERVICE USING BROADCAST ENCRYPTION
    28.
    发明申请
    AUTHENTICATION AND AUTHORIZATION OF A DEVICE BY A SERVICE USING BROADCAST ENCRYPTION 有权
    使用广播加密的服务的认证和授权

    公开(公告)号：US20120131338A1

    公开(公告)日：2012-05-24

    申请号：US12950301

    申请日：2010-11-19

    申请人： Thomas A. Bellwood ,  Jeffrey B. Lotspiech ,  Matthew F. Rutkowski

    发明人： Thomas A. Bellwood ,  Jeffrey B. Lotspiech ,  Matthew F. Rutkowski

    IPC分类号： H04L9/32

    CPC分类号： H04L9/0836 ,  H04L9/3271 ,  H04L2209/601

    摘要： Provided are techniques to enable a device that provides a service to authorize a second device for receiving the service and the delivery of the service to the second device and other devices within a trusted network. A signed Management Key Block (MKB) is generated and transmitted over a network. Devices authorized to access a particular service parse the MKB and transmit a request. A server associated with the service determines whether or not the device is authorized to access the service based upon data included in the request. The first device may issue a challenge to the second device for authentication purposes. If service is approved, service is initiated, either from the first device or another authorized device. Devices may be organized into classes such that devices of a specific class are authorized to access the service.

    摘要翻译： 提供的技术是使得能够提供服务的设备授权第二设备来接收服务以及向第二设备和受信任网络内的其他设备传送服务的技术。 签署的管理密钥块（MKB）通过网络生成和传输。 授权访问特定服务的设备解析MKB并发送请求。 与服务器相关联的服务器基于请求中包括的数据确定设备是否被授权访问服务。 为了认证目的，第一设备可能会向第二设备发出挑战。 如果服务被批准，服务将从第一个设备或其他授权设备启动。 设备可以被组织成类，使得特定类的设备被授权访问服务。