Recordable storage medium with protected data area
    1.
    发明授权
    Recordable storage medium with protected data area 有权
    具有受保护数据区的可记录存储介质

    公开(公告)号:US07260219B2

    公开(公告)日:2007-08-21

    申请号:US10785495

    申请日:2004-02-24

    IPC分类号: G06F12/14

    摘要: The invention relates to a method of storing data on a rewritable data storage medium, to a corresponding storage medium, to a corresponding recording apparatus and to a corresponding playback apparatus. Copy-protective measures require that on rewritable storage media some data must be stored which shall not be modifiable or erasable by consumer end products. A practical problem is the storage of large quantities of such data in a fixed data area. Typically the capacity is limited to a few bits. Meanwhile the amount of copy protection data that needs to be stored may well exceed the storage capacity available in the read-only fixed data area. The invention therefore proposes to write the copy protection data as system data in the recordable data area (4), e.g. as part of the formatting of the medium (1). A cryptographic summary is computed and also stored in the recordable data area (32) or in the fixed data area (2) such that a cryptographic relationship between the fixed data area (2) and the system data area (3) is provided. A playback or replay apparatus will only accept a storage medium with a valid combination of copy protection data and fixed data.

    摘要翻译: 本发明涉及一种将可重写数据存储介质上的数据存储到对应的存储介质到对应的记录装置和相应的重放装置的方法。 复制保护措施要求在可重写存储介质上必须存储一些不能由消费者终端产品修改或删除的数据。 一个实际的问题是在固定数据区域中存储大量的这种数据。 通常容量被限制在几位。 同时,需要存储的复制保护数据的数量可能会超过只读固定数据区域中可用的存储容量。 因此,本发明提出将复制保护数据作为系统数据写入可记录数据区域(4),例如, 作为媒体(1)的格式化的一部分。 计算加密摘要并将其存储在可记录数据区域(32)或固定数据区域(2)中,从而提供固定数据区域(2)与系统数据区域(3)之间的密码关系。 播放或重播设备将仅接受具有复制保护数据和固定数据的有效组合的存储介质。

    Watermark detection
    5.
    发明授权
    Watermark detection 失效
    水印检测

    公开(公告)号:US06718287B2

    公开(公告)日:2004-04-06

    申请号:US09862282

    申请日:2001-05-22

    IPC分类号: G06F1500

    摘要: A method and arrangement for detecting a watermark in a suspect signal, in which the watermark is embedded by adding a watermark pattern w to a signal p with a given embedding strength s (“additive embedding”: q=p+sw), includes correlating (2,3) it with the suspect signal. Recently, “multiplicative embedding” has been proposed (q=p(1+sw)). In this case, multiplicatively embedded watermarks are detected by raising (1) the signal to a power &bgr; prior to correlating it with the watermark. The power &bgr; may be fixed (e.g., &bgr;=2) or derived from a statistical analysis (5) of the signal.

    摘要翻译: 一种用于检测可疑信号中的水印的方法和装置,其中通过以给定的嵌入强度s(“附加嵌入”:q = p + sw))向信号p添加水印模式w来嵌入水印,包括相关 (2,3)它与可疑信号。 近来,已经提出了“乘法嵌入”(q = p(1 + sw))。 在这种情况下,通过在将信号与水印相关联之前将信号提高(1)到功率β来检测乘法嵌入的水印。 功率β可以是固定的(例如,β= 2)或者来自信号的统计分析(5)。

    Efficient address assignment in coded lighting systems
    6.
    发明授权
    Efficient address assignment in coded lighting systems 有权
    编码照明系统中的高效地址分配

    公开(公告)号:US09210776B2

    公开(公告)日:2015-12-08

    申请号:US13263199

    申请日:2010-04-01

    IPC分类号: H05B37/02 H05B33/08

    摘要: Coded light has been proposed to enable advanced control of light sources and transmit information using light sources. It is based on invisibly embedding of data and identifiers in their light output. Methods, devices and systems configured to efficient assignment of addresses in a coded lighting system, still allowing for unique identification, are proposed. More specifically, the assignment of addresses occurs in two phases, where in the initial phase wide area unique addresses are used, while in the second phase only local area unique addresses are used. Also, methods, devices and systems configured to efficiently distribute a set of addresses over a set of light sources in this second phase, to maximize the performance of the illumination contribution estimation, and positioning, are disclosed.

    摘要翻译: 已经提出编码光使得能够使用光源对光源进行高级控制和传输信息。 它基于在其光输出中不可见地嵌入数据和标识符。 提出了配置为在编码照明系统中有效分配地址的方法,设备和系统,仍然允许唯一的识别。 更具体地说,地址的分配发生在两个阶段,其中在初始相位宽区域中使用唯一地址,而在第二阶段中,只使用本地区域唯一地址。 此外,公开了被配置为在该第二阶段中在一组光源上有效分配一组地址以最大化照明贡献估计和定位的性能的方法,设备和系统。

    Watermark detector
    7.
    发明授权

    公开(公告)号:US06671806B2

    公开(公告)日:2003-12-30

    申请号:US09881605

    申请日:2001-06-14

    IPC分类号: G06F1214

    摘要: The invention relates to a method of outsourcing intermediate results of an internal data processing to an external memory, to a corresponding device for processing data having an interface for outsourcing intermediate results, to a disk drive having a corresponding device for processing data, and a cellular phone having a device for processing data. This method can be applied when confidential data is processed but intermediate results thereof need to be stored externally to the processing. First intermediate result data units (I1) are combined with first verification data units (V1) in order to provide a data signal (S1), which is encrypted (E1) and stored in an external memory (5). When the intermediate result data units (I1) stored in the external memory (5) are needed during a subsequent internal data processing a data signal (E2) is read from the external memory (5). After the decryption of the read data signal second verification data units (V2) and second intermediate result data units (I2) are obtained. Said second read verification data units (V2) are verified with said first verification data units (V1) in order to detect any manipulation of the intermediate result data during the time that they were stored in the external memory (5).

    EFFICIENT ADDRESS ASSIGNMENT IN CODED LIGHTING SYSTEMS
    8.
    发明申请
    EFFICIENT ADDRESS ASSIGNMENT IN CODED LIGHTING SYSTEMS 有权
    编码照明系统中的高效地址分配

    公开(公告)号:US20120091896A1

    公开(公告)日:2012-04-19

    申请号:US13263199

    申请日:2010-04-01

    IPC分类号: H05B37/02

    摘要: Coded light has been proposed to enable advanced control of light sources and transmit information using light sources. It is based on invisibly embedding of data and identifiers in their light output. Methods, devices and systems configured to efficient assignment of addresses in a coded lighting system, still allowing for unique identification, are proposed. More specifically, the assignment of addresses occurs in two phases, where in the initial phase wide area unique addresses are used, while in the second phase only local area unique addresses are used. Also, methods, devices and systems configured to efficiently distribute a set of addresses over a set of light sources in this second phase, to maximize the performance of the illumination contribution estimation, and positioning, are disclosed.

    摘要翻译: 已经提出编码光使得能够使用光源对光源进行高级控制和传输信息。 它基于在其光输出中不可见地嵌入数据和标识符。 提出了配置为在编码照明系统中有效分配地址的方法,设备和系统,仍然允许唯一的识别。 更具体地说,地址的分配发生在两个阶段,其中在初始相位宽区域中使用唯一地址,而在第二阶段中,只使用本地区域唯一地址。 此外,公开了被配置为在该第二阶段中在一组光源上有效分配一组地址以最大化照明贡献估计和定位的性能的方法,设备和系统。

    Illumination system and method for processing light
    9.
    发明授权
    Illumination system and method for processing light 有权
    照明系统及其处理方法

    公开(公告)号:US08643286B2

    公开(公告)日:2014-02-04

    申请号:US12990519

    申请日:2009-04-27

    IPC分类号: H05B37/02

    CPC分类号: H05B37/0272 H05B37/034

    摘要: Proposed is an illumination system (100) comprising a plurality of light sources (10) provided with encoders (20) arranged to enable light emitted from the light sources to comprise light source identification codes. In order to enable light effect commissioning, i.e. correlating the light sources (10) with their illumination footprints (11), the system further comprises a camera (40) arranged to register images of illumination spots (11), and a signal processor (111) arranged to derive the light source identification codes from registered images. Arranging the encoders (20) to modulate the light emitted at a frequency above a predefined high level to comprise fast codes (12) and at a frequency below a predefined low level to comprise slow codes (13), beneficially allows for the use of simple low cost camera systems.

    摘要翻译: 提出了一种照明系统(100),包括设置有使光源发出的光能够包括光源识别码的编码器(20)的多个光源(10)。 为了实现光效调试,即将光源(10)与其照明足迹(11)相关联,系统还包括被配置为记录照明点(11)的图像的照相机(40)和信号处理器(111) ),其被布置成从注册的图像导出光源识别码。 将编码器(20)布置成调制以高于预定义高电平的频率发射的光以包括快速码(12)并且以低于预定义低电平的频率包括慢码(13),有利地允许使用简单的 低成本相机系统。

    Method for communicating in a network, a system and a primary station therefor
    10.
    发明授权
    Method for communicating in a network, a system and a primary station therefor 失效
    用于在网络,系统和主站中进行通信的方法

    公开(公告)号:US08509202B2

    公开(公告)日:2013-08-13

    申请号:US13058722

    申请日:2009-08-07

    IPC分类号: H04W4/00

    摘要: The present invention relates to a system comprising at least one primary station and at least one secondary station, wherein the primary station comprises communication means for communicating with the secondary station in accordance with a first protocol, wherein the communication means are arranged for communicating with a plurality of further stations in accordance with a further protocol, and wherein the primary station comprises control means for generating a message to be broadcast to the secondary station, said message comprising purposely erroneous information causing the at least one secondary station to remain silent for a predetermined duration.

    摘要翻译: 本发明涉及一种包括至少一个主站和至少一个次站的系统,其中所述主站包括用于根据第一协议与所述次站通信的通信装置,其中所述通信装置被布置用于与 多个另外的站,其中所述主站包括用于生成要广播到所述次站的消息的控制装置,所述消息包括故意错误的信息,导致所述至少一个次站对于预定的 持续时间