公开(公告)号：US08665771B2

公开(公告)日：2014-03-04

申请号：US13090237

申请日：2011-04-19

申请人： Seung Hyun Nam ,  Hee Wook Kim ,  Kun Seok Kang ,  Do Seob Ahn ,  Ho Jin Lee

发明人： Seung Hyun Nam ,  Hee Wook Kim ,  Kun Seok Kang ,  Do Seob Ahn ,  Ho Jin Lee

IPC分类号： H04W72/04 ,  H04H20/71

CPC分类号： H04B7/18539

摘要： Disclosed is a communication method of a satellite mobile communication system. The communication method of a satellite mobile communication system, includes: receiving system information indicating frame intervals in which first user equipments using a satellite radio interface in commonality with a terrestrial radio interface do not perform communications from a base station; accessing the base station in the rest frame intervals other than frame intervals in which the first user equipments do not perform communications, based on the system information; transmitting the system information from the base station to second user equipments using a satellite radio interface optimized for satellite environment; and accessing the base station in the rest frame intervals based on the system information received in the second user equipments.

摘要翻译： 公开了一种卫星移动通信系统的通信方法。 卫星移动通信系统的通信方法包括：接收指示帧间隔的系统信息，其中使用与地面无线接口通用的卫星无线接口的第一用户设备不执行来自基站的通信; 基于所述系统信息，在所述第一用户设备不执行通信的帧间隔之外的其余帧间隔中访问所述基站; 使用为卫星环境优化的卫星无线接口将系统信息从基站发送到第二用户设备; 以及基于在第二用户设备中接收到的系统信息在休息帧间隔中访问基站。

公开(公告)号：US5913012A

公开(公告)日：1999-06-15

申请号：US000877

申请日：1997-12-30

申请人： Seung-Hyun Nam

发明人： Seung-Hyun Nam

IPC分类号： H04N5/92 ,  G11B20/02 ,  G11B20/10 ,  G11B20/12 ,  G11B20/18 ,  H04N5/775 ,  H04N9/804 ,  H04N19/89

CPC分类号： H04N19/89 ,  G11B20/10 ,  G11B20/1201 ,  G11B20/1833 ,  H04N5/775 ,  H04N9/8042

摘要： A decoding method and a decoder of a D-VHS codec system for recording/reproducing a high-definition picture and a high-fidelity sound is disclosed. In the playback of the digital data which is recorded in the format of the track, a decoding method and a decoder of the D-VHS codec system correct the random error or the burst error by the forward error correction addition information and reproduce both a high-definition picture and a high-fidelity sound. Consequently, an enormous quantity of computation which cannot be processed by programs, is performed in real time by an optimal data flow operation process method and the compressed or processed digital data is processed at a high speed. Also, a hardware configuration of the codec which conventionally includes two or three pieces of circuit board implements one custom-made semiconductor chip and cuts a unit cost of the manufacturing of the D-VHS codec.

摘要翻译： 公开了用于记录/再现高分辨率图像和高保真声音的D-VHS编解码系统的解码方法和解码器。 在以轨道格式记录的数字数据的回放中，D-VHS编解码器系统的解码方法和解码器通过前向纠错附加信息来校正随机误差或突发错误，并且再现高 定义图片和高保真音。 因此，通过最佳数据流操作处理方法实时地执行不能由程序处理的大量计算，并且以高速处理压缩或处理的数字数据。 此外，通常包括两个或三个电路板的编解码器的硬件配置实现了一个定制的半导体芯片，并且降低了D-VHS编解码器的制造的单位成本。

公开(公告)号：US5973625A

公开(公告)日：1999-10-26

申请号：US998485

申请日：1997-12-29

申请人： Seung-Hyun Nam

发明人： Seung-Hyun Nam

IPC分类号： G11B20/10 ,  G11B20/18 ,  H04N5/00 ,  H04N5/926 ,  H04N5/945 ,  H03M7/00 ,  H04H1/00 ,  H04N7/52

CPC分类号： H04N21/4147 ,  H04N5/9262 ,  H04N5/9268 ,  H04N5/945

摘要： A coding method and a coder of a D-VHS codec system for recording/reproducing a high-definition picture and a high-fidelity sound is disclosed. In the recording of digital data which is compressed or processed, the coding method and the coder of the D-VHS codec system record digital data with forward error correction addition information in the format of a track for a forward error correction. Consequently, an enormous quantity of computation which cannot be processed by programs, is performed in real time by an optimal data flow operation process method and the compressed or processed digital data is processed at a high speed. Also, a hardware configuration of the codec which conventionally includes two or three pieces of circuit board implements one custom-made semiconductor chip and cuts a unit cost of the manufacturing of the D-VHS codec.

摘要翻译： 公开了用于记录/再现高清晰度图像和高保真声音的D-VHS编解码器系统的编码方法和编码器。 在压缩或处理的数字数据的记录中，D-VHS编解码系统的编码方法和编码器以前向纠错的轨道格式的前向纠错附加信息记录数字数据。 因此，通过最佳数据流操作处理方法实时地执行不能由程序处理的大量计算，并且以高速处理压缩或处理的数字数据。 此外，通常包括两个或三个电路板的编解码器的硬件配置实现了一个定制的半导体芯片，并且降低了D-VHS编解码器的制造的单位成本。

公开(公告)号：US20120093014A1

公开(公告)日：2012-04-19

申请号：US13275970

申请日：2011-10-18

申请人： Tae Chul Hong ,  Hee Wook Kim ,  Seung Hyun Nam ,  Kun Seok Kang ,  Bon Jun Ku ,  Do Seob Ahn ,  Sung Moon Yeo ,  Soo Young Kim

发明人： Tae Chul Hong ,  Hee Wook Kim ,  Seung Hyun Nam ,  Kun Seok Kang ,  Bon Jun Ku ,  Do Seob Ahn ,  Sung Moon Yeo ,  Soo Young Kim

IPC分类号： H04L12/26

CPC分类号： H04L1/0071 ,  H03M13/2732 ,  H03M13/6508 ,  H03M13/6525 ,  H04L1/0033 ,  H04L1/0041

摘要： A communication method and apparatus using a symbol interleaver in a long term evolution (LTE)-based satellite communication system are provided. The communication method may include determining whether to use an interleaver based on service information, and interleaving the data using the symbol interleaver designed based on interleaver information. Also, the communication method may include generating random data using a timer and interleaving the random data.

摘要翻译： 提供了一种在基于长期演进（LTE）的卫星通信系统中使用符号交织器的通信方法和装置。 通信方法可以包括基于服务信息确定是否使用交织器，以及使用基于交织器信息设计的符号交织器来交织数据。 此外，通信方法可以包括使用定时器生成随机数据并交织随机数据。

公开(公告)号：US5696507A

公开(公告)日：1997-12-09

申请号：US655838

申请日：1996-05-31

申请人： Seung-Hyun Nam

发明人： Seung-Hyun Nam

IPC分类号： G06T9/00 ,  H03M7/42 ,  H03M7/40

CPC分类号： H03M7/425 ,  G06T9/005

摘要： Disclosed are method and apparatus for decoding variable length codewords such as a digital image signal at a high speed using a Huffman code tree, in accordance with the present invention, since a variable length coded codeword is stored in a look-up memory in a node order according to levels of a canonical Huffman code tree structure, and the node order of the coded codewords is detected by a predetermined calculating operation so that the node order is used as an address of the decoding codeword when decoding the variable length coded codeword. Therefore, the variable length code decoding is achieved in a manner which simply stores variables in a memory and a latch without changing a hardware when a Huffman code tree is changed by an operation of a central system. Also, since the present invention may by processing a coded codeword with a clock using a parallel calculation regardless of a decoded codeword length, it can decode a coded codeword at higher speed than a conventional variable length decoding apparatus and method thereof which perform to decode in the unit of bit.

摘要翻译： 公开了根据本发明的用于解码诸如数字图像信号的高速数字图像信号的方法和装置，因为可变长度编码码字被存储在节点中的查找存储器中 根据规范的霍夫曼代码树结构的级别进行顺序，并且通过预定的计算操作来检测编码码字的节点顺序，以便在解码可变长度编码码字时将节点顺序用作解码码字的地址。 因此，当通过中央系统的操作改变霍夫曼代码树时，可以以简单地将变量存储在存储器和锁存器中而不改变硬件的方式来实现可变长度码解码。 此外，由于本发明可以通过使用并行计算使用并行计算的编码码字而不管解码码字长度如何，因此可以以比传统的可变长度解码装置及其方法更高的速度对编码码字进行解码， 单位的位。

公开(公告)号：US20130215861A1

公开(公告)日：2013-08-22

申请号：US13881436

申请日：2011-10-27

申请人： Seung Hyun Nam ,  Hee Wook Kim ,  Tae Chul Hong ,  Kun Seok Kang ,  Bon Jun Ku ,  Do Seob Ahn

发明人： Seung Hyun Nam ,  Hee Wook Kim ,  Tae Chul Hong ,  Kun Seok Kang ,  Bon Jun Ku ,  Do Seob Ahn

IPC分类号： H04W74/08

CPC分类号： H04W74/0833 ,  H04W56/0005 ,  H04W56/0085

摘要： According to the present invention, a random access method between a terminal and a base station comprises: a system information transmission step in which the base station transmits, to the terminal, system information including route values sequentially selected from among a set of routes; a random access preamble transmission step in which the terminal generates a random access preamble on the basis of the system information and transmits the generated random access preamble to the base station; a period setup step in which the base station sets a period available for an arrival of the random access preamble; and a random access preamble detection step in which the base station detects the random access preamble in said available period.

摘要翻译： 根据本发明，终端和基站之间的随机接入方法包括：系统信息发送步骤，其中基站向终端发送包括从一组路由中顺序选择的路由值的系统信息; 随机接入前导码发送步骤，其中所述终端基于所述系统信息生成随机接入前导，并将所生成的随机接入前导码发送到所述基站; 周期设置步骤，其中所述基站设置可用于所述随机接入前同步码的到达的时段; 以及随机接入前导码检测步骤，其中所述基站在所述可用时段中检测所述随机接入前导码。

公开(公告)号：US5982306A

公开(公告)日：1999-11-09

申请号：US982372

申请日：1997-12-02

申请人： Seung-Hyun Nam

发明人： Seung-Hyun Nam

IPC分类号： H03M7/42 ,  H03M7/40

CPC分类号： H03M7/42

摘要： A method for translating symbols into variable-length code words is disclosed. The method includes the steps of a) generating a memorized code word from a code-book memory by inputting a symbol to the code-book memory in which the variable-length code words are stored; b) detecting a length of a variable-length code word included in the memorized code word on the basis of selected code words, levels defined in a Huffman code tree by each of the selected code words, and numbers of terminal nodes in each of the levels, wherein the selected code words are generated by selecting m bit among the memorized code word K times, where m=1, 2, 3, 4, . . . , K, and K denotes a maximum length of the variable length code word; and c) accessing the variable-length code word from the memorized code word according to the length of the variable-length code word. Therefore, the method makes it possible to translate the symbols into the variable-length code words without storing the length data in a memory.

摘要翻译： 公开了一种将符号转换成可变长度码字的方法。 该方法包括以下步骤：a）通过向存储可变长度代码字的代码簿存储器输入符号，从代码簿存储器生成存储代码字; b）基于所选择的代码字检测存储的代码字中包括的可变长度代码字的长度，通过每个所选代码字在霍夫曼代码树中定义的级别，以及每一个中的终端节点数 电平，其中通过在存储的代码字K次中选择m位来生成所选择的代码字，其中m = 1,2,3,4。 。 。 K，K表示可变长度码字的最大长度; 以及c）根据可变长度代码字的长度从存储的代码字访问可变长度代码字。 因此，该方法使得可以将符号转换为可变长度码字而不将长度数据存储在存储器中。

公开(公告)号：US20120033599A1

公开(公告)日：2012-02-09

申请号：US13090237

申请日：2011-04-19

申请人： Seung Hyun NAM ,  Hee Wook Kim ,  Kun Seok Kang ,  Do Seob Ahn ,  Ho Jin Lee

发明人： Seung Hyun NAM ,  Hee Wook Kim ,  Kun Seok Kang ,  Do Seob Ahn ,  Ho Jin Lee

IPC分类号： H04W72/04 ,  H04W4/06 ,  H04W88/06

CPC分类号： H04B7/18539

摘要： Disclosed is a communication method of a satellite mobile communication system. The communication method of a satellite mobile communication system, includes: receiving system information indicating frame intervals in which first user equipments using a satellite radio interface in commonality with a terrestrial radio interface do not perform communications from a base station; accessing the base station in the rest frame intervals other than frame intervals in which the first user equipments do not perform communications, based on the system information; transmitting the system information from the base station to second user equipments using a satellite radio interface optimized for satellite environment; and accessing the base station in the rest frame intervals based on the system information received in the second user equipments.

摘要翻译： 公开了一种卫星移动通信系统的通信方法。 卫星移动通信系统的通信方法包括：接收指示帧间隔的系统信息，其中使用与地面无线接口通用的卫星无线接口的第一用户设备不执行来自基站的通信; 基于所述系统信息，在所述第一用户设备不执行通信的帧间隔之外的其余帧间隔中访问所述基站; 使用为卫星环境优化的卫星无线接口将系统信息从基站发送到第二用户设备; 以及基于在第二用户设备中接收到的系统信息在休息帧间隔中访问基站。

公开(公告)号：US5936922A

公开(公告)日：1999-08-10

申请号：US866070

申请日：1997-05-30

申请人： Ji-Won Jung ,  Seung-Hyun Nam

发明人： Ji-Won Jung ,  Seung-Hyun Nam

IPC分类号： G11B20/14 ,  A47L15/23 ,  A47L15/42 ,  G11B7/00

CPC分类号： A47L15/23

摘要： In a method for exactly sampling a synchronous pattern from read data including an error from a recording medium and an apparatus for carrying out the method, a system clock signal is received and the starting portion of each data region concerning the read data from the recording medium having a track structure is counted by using the received system clock signal. The counting value is compared with a standard counting value and the present data region is judged according to the compared result. A same random synchronous signal as a synchronous pattern concerning the data region judged from each data region of the read data, is generated. A first and a second sampling signals are generated in a synchronization block of a unit based on the first and the second synchronous pattern generated from the random synchronous signal. A normal synchronous pattern concerning each data region is sampled based on the random synchronous signal and on the first and the second sampling signals. An accurate synchronous pattern concerning each data region can be obtained irrespective of the presence of an error.

摘要翻译： 在从包括来自记录介质的错误的读取数据和用于执行该方法的装置的精确采样同步模式的方法中，接收系统时钟信号，并且每个数据区域的起始部分与来自记录介质的读取数据相关 通过使用所接收的系统时钟信号来计数轨道结构。 将计数值与标准计数值进行比较，根据比较结果判断当前数据区域。 产生与从读取数据的每个数据区域判断的关于数据区域的同步模式相同的随机同步信号。 基于从随机同步信号生成的第一和第二同步模式，在单元的同步块中生成第一和第二采样信号。 基于随机同步信号和第一和第二采样信号，对每个数据区域的正常同步模式进行采样。 可以获得关于每个数据区域的精确的同步模式，而不管存在错误。