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11. 发明授权

US07505430B2 Alternative frequency strategy for DRM 失效
标题翻译： DRM的替代频率策略
公开(公告)号：US07505430B2
公开(公告)日：2009-03-17
申请号：US10914524
申请日：2004-08-09
申请人： Carsten Merkle , Jens Wildhagen , Markus Zumkeller
发明人： Carsten Merkle , Jens Wildhagen , Markus Zumkeller
IPC分类号： H04Q7/00
CPC分类号： H04H20/22 , H04H20/26 , H04H20/95 , H04H40/18 , H04H60/27
摘要： A radio transmission signal consisting of signal frames that comprise a dynamic data part and a quasi-static data part according to the present invention is characterized in that the dynamic data part of a respective frame contains an indicator showing in which following frame the quasi-static data part of this respective frame will be repeated. Therewith, an alternative frequency of e.g. a digital shortwave signal like a DRM signal can easily and satisfactorily be checked before a fast seamless switching to this alternative frequency can be performed. The inventive method to perform a seamless switching of a receiver from a first currently tuned frequency to a second alternative frequency is characterized by the step of receiving at least one set of samples from a respective signal transmitted on at least one second frequency during a time period during which said indicator assures that it is secure that only data that has been transmitted at least once is transmitted as signal on said first frequency to gather some information about said alternative frequency.
摘要翻译：根据本发明的由包括动态数据部分和准静态数据部分的信号帧组成的无线电传输信号的特征在于，各个帧的动态数据部分包含指示符，其中在下面的帧中准静态将重复该相应帧的数据部分。因此，例如，诸如DRM信号的数字短波信号可以在可以执行到该替代频率的快速无缝切换之前容易且令人满意地被检查。执行接收机从第一当前调谐频率到第二替代频率的无缝切换的本发明方法的特征在于，在一段时间段内从在至少一个第二频率上发射的相应信号中接收至少一组采样的步骤在此期间，所述指示器确保仅将已经发送的数据至少一次的信号作为所述第一频率上的信号发送以收集关于所述替代频率的一些信息是安全的。

12. 发明授权

US07310496B2 Broadcast receiver 失效
标题翻译：广播接收机
公开(公告)号：US07310496B2
公开(公告)日：2007-12-18
申请号：US09931367
申请日：2001-08-16
申请人： Dietmar Schill , Carsten Merkle , Markus Zumkeller
发明人： Dietmar Schill , Carsten Merkle , Markus Zumkeller
IPC分类号： H04Q7/22 , H04Q7/20 , H04H1/00
CPC分类号： H04W52/0248 , H04H20/26 , H04H60/25 , H04W76/40 , Y02D70/00
摘要： In digital broadcast systems, it is common to broadcast besides main services additional services like news services. Typically, these additional services are regularly updated and broadcasted by a service provider (3) several times a day. In order to keep service data transmitted by the additional services up to date in a receiving device (1) receiving the services, a method of accessing services is given according to which a respective service information about the services provided by service providers (3) is extracted from a service presently received by the receiving device (1), and then at least one of the services about which service information was extracted according to the respective extracted service information might be accessed. Thus, the service data can automatically be updated by the receiving device (1) itself, even if transmission conditions of an additional service like update rates change over the time.
摘要翻译：在数字广播系统中，除了主要业务外还广播新闻服务等附加服务。通常，这些附加服务由服务提供商（3）定期更新和广播，每天多次。为了使接收服务的接收设备（1）中的附加服务发送的服务数据保持最新，给出接入服务的方法，根据该方法，服务提供商（3）提供的服务的相应服务信息是从接收设备（1）当前接收到的服务提取，然后可以访问根据相应提取的服务信息提取服务信息的服务中的至少一个。因此，即使在诸如更新率的附加服务的传输条件随时间变化，服务数据也可以由接收设备（1）自身自动更新。

13. 发明申请

US20050008034A1 Alternative frequency strategy for DRM 失效
标题翻译： DRM的替代频率策略
公开(公告)号：US20050008034A1
公开(公告)日：2005-01-13
申请号：US10914524
申请日：2004-08-09
申请人： Carsten Merkle , Jens Wildhagen , Markus Zumkeller
发明人： Carsten Merkle , Jens Wildhagen , Markus Zumkeller
IPC分类号： H04L27/00 , H04H20/26 , H04H20/95 , H04H40/18 , H04H60/27 , H04J1/02 , H04J11/00 , H03D3/22
CPC分类号： H04H20/22 , H04H20/26 , H04H20/95 , H04H40/18 , H04H60/27
摘要： A radio transmission signal consisting of signal frames that comprise a dynamic data part and a quasi-static data part according to the present invention is characterized in that the dynamic data part of a respective frame contains an indicator showing in which following frame the quasi-static data part of this respective frame will be repeated. Therewith, an alternative frequency of e.g. a digital shortwave signal like a DRM signal can easily and satisfactorily be checked before a fast seamless switching to this alternative frequency can be performed. The inventive method to perform a seamless switching of a receiver from a first currently tuned frequency to a second alternative frequency is characterized by the step of receiving at least one set of samples from a respective signal transmitted on at least one second frequency during a time period during which said indicator assures that it is secure that only data that has been transmitted at least once is transmitted as signal on said first frequency to gather some information about said alternative frequency.
摘要翻译：根据本发明的由包括动态数据部分和准静态数据部分的信号帧组成的无线电传输信号的特征在于，各个帧的动态数据部分包含指示符，其中在下面的帧中准静态将重复该相应帧的数据部分。因此，例如，诸如DRM信号的数字短波信号可以在可以执行到该替代频率的快速无缝切换之前容易且令人满意地被检查。执行接收机从第一当前调谐频率到第二替代频率的无缝切换的本发明方法的特征在于，在一段时间段内从在至少一个第二频率上发射的相应信号中接收至少一组采样的步骤在此期间，所述指示器确保仅将已经发送的数据至少一次的信号作为所述第一频率上的信号发送以收集关于所述替代频率的一些信息是安全的。

14. 发明授权

US06522866B1 Alternative frequency service verification 有权
标题翻译：替代频率服务验证
公开(公告)号：US06522866B1
公开(公告)日：2003-02-18
申请号：US09608387
申请日：2000-06-30
申请人： Carsten Merkle , Jens Wildhagen , Markus Zumkeller
发明人： Carsten Merkle , Jens Wildhagen , Markus Zumkeller
IPC分类号： H04B700
CPC分类号： H04H20/22
摘要： An alternative frequency of e. g. a digital shortwave signal like a DRM signal can easily and satisfactorily be checked whether or not the same service is transmitted before a fast seamless switching to this alternative frequency can be performed. The inventive method to perform such a checking is characterized by a respective correlation of at least two sets of samples taken from the signal transmitted on the alternative frequency having a predetermined time relationship (&Dgr;tcorr) and a comparison of said respective correlation results, i.e. comparison of the time (t1) of occurance of a correlation peak included in a first correlation result with the time (t2) of occurance of a correlation peak included in a respective further correlation result, to verify that both services are the same when the time relationship (|t2 l -t1|) between said correlation peaks is the same as said predetermined time relationship (&Dgr;tcorr) of the at least two sets of samples.
摘要翻译：另一个频率e。 G。可以容易且令人满意地检查类似DRM信号的数字短波信号，在可以执行到该替代频率的快速无缝切换之前是否发送相同的服务。执行这种检查的本发明的方法的特征在于从具有预定时间关系（DELTAtcorr）的替代频率上发送的信号中获取的至少两组样本和所述各个相关结果的比较的相应关系，即比较包括在第一相关结果中的相关峰值的发生时间（t1）与包括在相应的进一步的相关结果中的相关峰值出现的时间（t2），以验证两个服务在时间关系（ | t2 l -t1 |）与所述至少两组样本的所述预定时间关系（DELTAtcorr）相同。

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