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    • 44. 发明授权
    • Method of compressing and restoring IP packets transmitted through broadcast network
    • 通过广播网络传输的IP报文的压缩和恢复方法
    • US08228909B2
    • 2012-07-24
    • US12051137
    • 2008-03-19
    • Sung-il Park
    • Sung-il Park
    • H04L12/28
    • H04L69/04H04L69/22
    • A method of compressing and restoring an Internet Protocol (IP) packet which is transmitted through a broadcast network is provided. According to the method, by using a characteristic of a transmission structure of a broadcast network, that is unlike ordinary packet switching communication networks, a field value that can be removed from a header part of an IP packet is determined. Then, the determined field value is removed from the header, and an IP packet having a header formed with the remaining field values is generated, thereby compressing the header of the IP packet more effectively compared to the header of the conventional static IP packet. In addition, by transmitting a compressed IP packet instead of a static IP packet which is periodically transmitted according to the conventional method, compatibility that the compression method can be used together with conventional compression methods is guaranteed.
    • 提供了通过广播网络传输的压缩和恢复因特网协议(IP)分组的方法。 根据该方法,通过使用与普通分组交换通信网络不同的广播网络的发送结构的特征,可以确定可以从IP分组的报头部分去除的场值。 然后,从标题中移除所确定的字段值,并且生成具有由剩余字段值形成的报头的IP分组,从而比传统静态IP分组的报头更有效地压缩IP分组的报头。 此外,通过发送压缩IP分组而不是根据常规方法周期性地发送的静态IP分组,保证压缩方法可以与常规压缩方法一起使用的兼容性。
    • 49. 发明申请
    • Method of providing broadcast service and broadcasting receiver therefor
    • 提供广播服务和广播接收机的方法
    • US20060154669A1
    • 2006-07-13
    • US11259125
    • 2005-10-27
    • Ju-hee SeoSung-il Park
    • Ju-hee SeoSung-il Park
    • H04Q7/20
    • H04H20/26H03J1/0008H04H20/30H04H20/93H04H60/50H04H60/91H04H2201/20
    • A method and a broadcasting receiver that provide a broadcast service are provided. The method includes extracting and storing information on channels of at least one neighboring local transmitting station of a service provider adjacent to a current local transmitting station from a digital broadcast signal transmitted through a current channel from the current local transmitting station of the service provider; switching a tuning channel to another channel on the basis of the information on the channels of the at least one neighboring local transmitting station, when the channel for a current broadcast service changes from the current channel to the other channel; and decoding and outputting the same broadcast service as the current broadcast service among a plurality of broadcast services included in a digital broadcast signal transmitted through the other channel.
    • 提供了提供广播服务的方法和广播接收机。 该方法包括从当前本地发送站的当前本地发送站从当前信道发送的数字广播信号中提取和存储与当前本地发送站相邻的服务提供者的至少一个邻近本地发送站的信道的信息; 当当前广播服务的信道从当前信道改变到另一信道时,基于关于至少一个相邻本地发送站的信道的信息将调谐信道切换到另一信道; 并且在包括在通过另一个频道发送的数字广播信号中的多个广播服务之中解码和输出与当前广播服务相同的广播服务。