公开(公告)号：US06178175B1

公开(公告)日：2001-01-23

申请号：US08894678

申请日：1998-04-22

Applicant: Markus Zumkeller

Inventor： Markus Zumkeller

IPC: H04J400

CPC classification number: H04H20/67 ,  H04H20/38 ,  H04H60/15 ,  H04H2201/20 ,  H04H2201/33 ,  H04L5/023 ,  H04L5/143 ,  H04N7/17309

Abstract: The establishment of an interactive broadcasting network requires not only a transmission channel from transmitter to receiver but also a transmission channel from receiver to transmitter. A novel method of creating a data feedback channel from receiver to transmitter is implemented in a common frequency network and involves the use of a transmission procedure in conformity with the DAB standard. Each receiver or user is assigned an identifier which is transmitted in the data feedback channel at specially reserved frequencies to request transmission capacity. A computer then allocates transmission capacity to the receiver. The signals received in the forward channel are evaluated using the synchronization symbols they contain in order to synchronize the transmitter component in the receiver. The novel process can be used in all common frequency networks which use data transmission in conformity with the DAB standard and ensures a particularly economical synchronization in the receiver.

Abstract translation: 互动广播网络的建立不仅需要从发射机到接收机的传输信道，而且还需要从接收机到发射机的传输信道。 在公共频率网络中实现了从接收机到发射机创建数据反馈信道的新颖方法，并且涉及使用符合DAB标准的传输过程。 为每个接收机或用户分配一个在数据反馈信道中以专门保留的频率发送的标识符，以请求传输容量。 然后计算机向接收机分配传输容量。 在前向信道中接收的信号使用它们包含的同步符号进行评估，以使接收机中的发射机部件同步。 该新颖的过程可以用于使用符合DAB标准的数据传输的所有常见频率网络，并确保在接收机中特别经济的同步。