专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07714937B2 Channel equalizer and digital television receiver using the same 有权
标题翻译：信道均衡器和数字电视接收机使用相同
公开(公告)号：US07714937B2
公开(公告)日：2010-05-11
申请号：US11595666
申请日：2006-11-08
申请人： Joon Tae Kim , Sung Ryong Hong , In Hwan Choi , Kyung Won Kang , Jong Woong Shin , Byoung Gill Kim , Woo Chan Kim , Jae Hyoung Kim
发明人： Joon Tae Kim , Sung Ryong Hong , In Hwan Choi , Kyung Won Kang , Jong Woong Shin , Byoung Gill Kim , Woo Chan Kim , Jae Hyoung Kim
IPC分类号： H04N5/21
CPC分类号： H04N5/21 , H04L2025/0349 , H04N5/211
摘要： Disclosed are a channel equalizer and digital television receiver using the same. The equalizer comprises a channel estimator, a channel distortion compensator and noise canceller. The channel estimator estimates an impulse response of a transmission channel from a received signal. The channel distortion compensator transforms and processes the received signal and the estimated impulse response. The noise canceller predicts and eliminates amplified noise generated during equalization.
摘要翻译：公开了使用其的信道均衡器和数字电视接收机。均衡器包括信道估计器，信道失真补偿器和噪声消除器。信道估计器从接收信号估计传输信道的脉冲响应。信道失真补偿器对接收到的信号和估计的脉冲响应进行变换和处理。噪声消除器预测并消除均衡期间产生的放大噪声。

2. 发明授权

US07151573B2 Channel equalizer and digital television receiver using the same 有权
标题翻译：信道均衡器和数字电视接收机使用相同
公开(公告)号：US07151573B2
公开(公告)日：2006-12-19
申请号：US10734413
申请日：2003-12-12
申请人： Joon Tae Kim , Sung Ryong Hong , In Hwan Choi , Kyung Won Kang , Jong Woong Shin , Byoung Gill Kim , Woo Chan Kim , Jae Hyoung Kim
发明人： Joon Tae Kim , Sung Ryong Hong , In Hwan Choi , Kyung Won Kang , Jong Woong Shin , Byoung Gill Kim , Woo Chan Kim , Jae Hyoung Kim
IPC分类号： H04N5/21
CPC分类号： H04N5/21 , H04L2025/0349 , H04N5/211
摘要： Disclosed are a channel equalizer and digital television receiver using the same. The equalizer comprises a channel estimator, a channel distortion compensator and noise canceller. The channel estimator estimates an impulse response of a transmission channel from a received signal. The channel distortion compensator transforms and processes the received signal and the estimated impulse response. The noise canceller predicts and eliminates amplified noise generated during equalization.
摘要翻译：公开了使用其的信道均衡器和数字电视接收机。均衡器包括信道估计器，信道失真补偿器和噪声消除器。信道估计器从接收信号估计传输信道的脉冲响应。信道失真补偿器对接收到的信号和估计的脉冲响应进行变换和处理。噪声消除器预测并消除均衡期间产生的放大噪声。

3. 发明授权

US07391833B2 Channel estimator adopting masking 有权
标题翻译：信道估计器采用掩码
公开(公告)号：US07391833B2
公开(公告)日：2008-06-24
申请号：US10792317
申请日：2004-03-02
申请人： Jae Hyoung Kim , Sung Ryong Hong
发明人： Jae Hyoung Kim , Sung Ryong Hong
IPC分类号： H04B1/10
CPC分类号： H04L25/0218 , H04L25/0228
摘要： Disclosed is a channel estimator adopting masking. In a channel estimator using a CIR (channel impulse response) estimating value, the present invention includes a CIR masking unit removing a noise included in the CIR estimating value. Accordingly, the present invention is capable of filtering noises resulting from finiteness of the PN sequence used in finding the cross correlator, thereby enabling to enhance accuracy for the CIR estimating value. And, the enhanced accuracy for the CIR estimating value enables to improve tracking performance to the time variable channel of the frequency domain equalizer using the channel estimator.
摘要翻译：公开了采用掩蔽的信道估计器。在使用CIR（信道脉冲响应）估计值的信道估计器中，本发明包括一个CIR掩蔽单元去除包括在CIR估计值中的噪声。因此，本发明能够对由发现互相关器的PN序列的有限性所产生的噪声进行滤波，从而能够提高CIR估计值的精度。并且，CIR估计值的增强的精度使得能够使用信道估计器来提高对频域均衡器的时间可变信道的跟踪性能。

4. 发明授权

US08369462B2 DTV receiver and method of processing signal in DTV receiver 有权
标题翻译：数字电视接收机和DTV接收机处理信号的方法
公开(公告)号：US08369462B2
公开(公告)日：2013-02-05
申请号：US13189319
申请日：2011-07-22
申请人： Kyung Won Kang , In Hwan Choi , Kook Yeon Kwak , Young Jin Hong , Sung Ryong Hong
发明人： Kyung Won Kang , In Hwan Choi , Kook Yeon Kwak , Young Jin Hong , Sung Ryong Hong
IPC分类号： H04B1/66
CPC分类号： H04L25/03114 , H03M13/2936 , H04H20/426 , H04H40/18 , H04L25/03343 , H04L2025/03783 , H04N21/235 , H04N21/23614 , H04N21/435 , H04N21/4382 , Y02D70/168
摘要： A DTV receiver includes a tuner, a demodulator, a channel equalizer, a sequence detector, and a burst controller. The tuner receives a DTV signal having main data and at least one burst of enhanced data. The demodulator demodulates the DTV signal by performing carrier and time recovery and the channel equalizer equalizes the demodulated signal. The sequence detector detects one or more known data sequences from any one of the received signal and the demodulated signal. The demodulator and the channel equalizer use the detected known data sequences when performing the carrier and timing recover and the channel-equalization, respectively. Lastly, the burst controller supplies power to the tuner, the demodulator, the channel equalizer, and the data detector only during a burst time for each burst of enhanced data for efficient power consumption.
摘要翻译： DTV接收机包括调谐器，解调器，信道均衡器，序列检测器和突发控制器。调谐器接收具有主数据和增强数据的至少一个突发的DTV信号。解调器通过执行载波和时间恢复来解调DTV信号，信道均衡器对解调信号进行均衡。序列检测器从接收信号和解调信号中的任何一个检测一个或多个已知数据序列。解调器和信道均衡器分别在执行载波和定时恢复和信道均衡时使用检测到的已知数据序列。最后，脉冲串控制器仅在突发时间内为调谐器，解调器，信道均衡器和数据检测器供电，用于每个突发的增强数据以有效地消耗功率。

5. 发明申请

US20120084621A1 DIGITAL BROADCASTING SYSTEM AND METHOD OF PROCESSING DATA 有权
标题翻译：数字广播系统和数据处理方法
公开(公告)号：US20120084621A1
公开(公告)日：2012-04-05
申请号：US13244249
申请日：2011-09-23
申请人： Sung Ryong Hong , In Hwan Choi , Kook Yeon Kwak , Byoung Gill Kim , Won Gyu Song , Jin Woo Kim , Hyoung Gon Lee
发明人： Sung Ryong Hong , In Hwan Choi , Kook Yeon Kwak , Byoung Gill Kim , Won Gyu Song , Jin Woo Kim , Hyoung Gon Lee
IPC分类号： H03M13/29 , G06F11/10
CPC分类号： H04L1/006 , H04L1/0045 , H04L2001/0093 , H04N21/2383 , H04N21/41407 , H04N21/4382
摘要： A digital broadcast system and a method of processing data are provided. The transmitting system of the digital broadcast system includes an encoder for encoding mobile data for FEC to build RS frames, a signaling encoder for encoding TPC data including the RS frame mode information, a divider for dividing at least one of the RS frames into a plurality of portions, a block processor for converting one portion to a plurality of SCCC blocks, a converter for converting the SCCC blocks to data blocks, a group formatter for forming data groups, a packet formatter for forming data packets including data in the data groups, a multiplexer for multiplexing main data packets including main data and the data packets, a trellis encoder for performing trellis encoding on data in the multiplexed data packets and a transmission unit for transmitting the broadcast signal including a parade of the data groups.
摘要翻译：提供数字广播系统和处理数据的方法。数字广播系统的发送系统包括用于编码用于FEC的移动数据以构建RS帧的编码器，用于对包括RS帧模式信息的TPC数据进行编码的信令编码器，用于将至少一个RS帧划分为多个的分频器的部分，用于将一部分转换为多个SCCC块的块处理器，用于将SCCC块转换为数据块的转换器，用于形成数据组的组格式器，用于形成包括数据组中的数据的数据分组的分组格式器，用于复用包括主数据和数据分组的主数据分组的多路复用器，用于对多路复用数据分组中的数据执行网格编码的网格编码器，以及用于发送包括数据组的游行的广播信号的传输单元。

6. 发明申请

US20110235725A1 DIGITAL BROADCASTING SYSTEM AND METHOD OF PROCESSING DATA IN DIGITAL BROADCASTING SYSTEM 有权
标题翻译：数字广播系统和数字广播系统中数据处理方法
公开(公告)号：US20110235725A1
公开(公告)日：2011-09-29
申请号：US13154373
申请日：2011-06-06
申请人： Chul Soo LEE , In Hwan Choi , Jae Hyung Song , Sung Ryong Hong
发明人： Chul Soo LEE , In Hwan Choi , Jae Hyung Song , Sung Ryong Hong
IPC分类号： H04N7/66
CPC分类号： H04N21/6131 , H04N5/4401 , H04N21/235 , H04N21/414 , H04N21/434 , H04N21/4345 , H04N21/435
摘要： A digital broadcast receiving system and a method for controlling the same are disclosed. The method includes the steps of receiving a broadcast signal having mobile service data and main service data multiplexed therein, extracting transmission parameter channel (TPC) signaling information and fast information channel (FIC) signaling information from a data group within the received mobile service data, wherein the FIC signaling information includes a current/next (C/N) indicator, and wherein the TPC signaling information includes FIC version information, and detecting ensemble configuration information of a current MH frame.
摘要翻译：公开了一种数字广播接收系统及其控制方法。该方法包括以下步骤：接收具有多路复用的移动业务数据和主业务数据的广播信号，从接收到的移动业务数据内的数据组提取传输参数信道（TPC）信令信息和快速信息信道（FIC）信令信息，其中所述FIC信令信息包括当前/下一个（C / N）指示符，并且其中所述TPC信令信息包括FIC版本信息，以及检测当前MH帧的整体配置信息。

7. 发明授权

US07936828B2 Digital television transmitter/receiver and method of processing data in digital television transmitter/receiver 有权
标题翻译：数字电视发射机/接收机和数字电视发射机/接收机处理数据的方法
公开(公告)号：US07936828B2
公开(公告)日：2011-05-03
申请号：US11428317
申请日：2006-06-30
申请人： In Hwan Choi , Kyung Won Kang , Kook Yeon Kwak , Young Jin Hong , Sung Ryong Hong
发明人： In Hwan Choi , Kyung Won Kang , Kook Yeon Kwak , Young Jin Hong , Sung Ryong Hong
IPC分类号： H04N7/12 , G01R31/08
CPC分类号： H04N19/66 , H04B1/68 , H04N19/46 , H04N21/23614 , H04N21/2383 , H04N21/262 , H04N21/4348 , H04N21/4382 , H04N21/6547
摘要： A digital television (DTV) transmitter and a method of coding data in the DTV transmitter method are disclosed. A pre-processor pre-processes the enhanced data by coding the enhanced data for forward error correction (FEC) and expanding the FEC-coded enhanced data. A data formatter generates one or more groups of enhanced data packets, each enhanced data packet including the pre-processed enhanced data. And, a packet multiplexer generates at least one burst of enhanced data by multiplexing the one or more groups of enhanced data packets. Herein, each burst of enhanced data includes at least one group of enhanced data packets. The DTV transmitter may further include a scheduler which generates first and second control signals to control operations of the data formatter and the packet multiplexer, respectively.
摘要翻译：公开了一种数字电视（DTV）发射机和DTV发射机方法中的数据编码方法。预处理器通过对用于前向纠错（FEC）的增强数据进行编码并扩展FEC编码的增强数据来预处理增强数据。数据格式化器生成一组或多组增强数据分组，每个增强数据分组包括预处理的增强数据。并且，分组多路复用器通过复用一组或多组增强数据分组来产生增强数据的至少一个突发。这里，增强数据的每个突发包括至少一组增强数据分组。 DTV发射机还可以包括调度器，其分别产生第一和第二控制信号以控制数据格式化器和分组多路复用器的操作。

8. 发明授权

US07480350B2 Carrier recovery apparatus and broadcasting receiver using the same 失效
标题翻译：运营商恢复装置和广播接收机使用相同
公开(公告)号：US07480350B2
公开(公告)日：2009-01-20
申请号：US11020986
申请日：2004-12-22
申请人： Tok Kim , Sung Ryong Hong
发明人： Tok Kim , Sung Ryong Hong
IPC分类号： H04L27/14 , H04L27/06 , H04L27/22 , H04N5/50
CPC分类号： H04N5/4401 , H04L27/06 , H04L2027/0028 , H04L2027/0057 , H04L2027/0065 , H04N5/455 , H04N21/4382
摘要： Provided is a carrier recovery apparatus in a vestigial sideband modulation (VSB) type digital television (DTV) receiver. The carrier recovery apparatus dynamically controls a sign determination level which is a reference for determining a sign of an I signal in a sign extractor. Therefore, the carrier recover apparatus can eliminate unnecessary sign extraction caused by zero-crossing which is generated when the receiver receives a pilot signal weaken by a channel ghost, and improves the frequency lock performance in the receiver. Specially, the carrier recover apparatus can effectively improve the frequency lock performance when comparatively large pattern jitter is existed in a low pass signal caused by a ghost signal produces a long delay time.
摘要翻译：提供了一种残留边带调制（VSB）型数字电视（DTV）接收机中的载波恢复装置。载波恢复装置动态地控制作为用于确定符号提取器中的I信号的符号的参考的符号确定级别。因此，载波恢复装置可以消除当接收机接收到由信道重影弱化的导频信号时产生的过零所引起的不必要的符号提取，并且提高了接收机中的频率锁定性能。特别地，当由于重影信号引起的低通信号中存在相当大的模式抖动时，载波恢复装置可以有效地提高频率锁定性能，从而产生较长的延迟时间。

9. 发明申请

US20080069147A1 DTV TRANSMITTING SYSTEM AND RECEIVING SYSTEM AND METHOD OF PROCESSING BROADCAST DATA 有权
标题翻译：数字电视发射系统和接收系统以及处理广播数据的方法
公开(公告)号：US20080069147A1
公开(公告)日：2008-03-20
申请号：US11855966
申请日：2007-09-14
申请人： Hyoung Gon Lee , In Hwan Choi , Kook Yeon Kwak , Byoung Gill Kim , Won Gyu Song , Sung Ryong Hong , Jong Moon Kim , Jae Hyung Kim , Jin Woo Kim
发明人： Hyoung Gon Lee , In Hwan Choi , Kook Yeon Kwak , Byoung Gill Kim , Won Gyu Song , Sung Ryong Hong , Jong Moon Kim , Jae Hyung Kim , Jin Woo Kim
IPC分类号： H04H20/77 , H04J3/02
CPC分类号： H03M13/03 , H03M13/033 , H04N21/235 , H04N21/23614 , H04N21/2383 , H04N21/4348
摘要： A digital television transmitting system includes a frame encoder, a block processor, a group formatter, and a multiplexer. The frame encoder forms an enhanced data frame and encodes the data frame for error correction and for error detection. The block processor further encodes the encoded data frame at a rate of ½ or ¼, and the group formatter divides the encoded data frame into a plurality of enhanced data blocks and maps the divided data blocks into a plurality of enhanced data groups, respectively. The multiplexer multiplexes the enhanced data groups with main data.
摘要翻译：数字电视发送系统包括帧编码器，块处理器，组格式化器和多路复用器。帧编码器形成增强数据帧，并且对数据帧进行编码以进行纠错和错误检测。块处理器以1/2或1/4的速率进一步编码编码数据帧，并且组格式器将编码数据帧分成多个增强数据块，并将分割的数据块分别映射成多个增强数据组。复用器将增强型数据组与主数据复用。

10. 发明授权

US08438464B2 Digital television transmitter/receiver and method of processing data in digital television transmitter/receiver 有权
标题翻译：数字电视发射机/接收机和数字电视发射机/接收机处理数据的方法
公开(公告)号：US08438464B2
公开(公告)日：2013-05-07
申请号：US13104886
申请日：2011-05-10
申请人： Kyung Won Kang , In Hwan Choi , Kook Yeon Kwak , Ja Hyuk Koo , Kyung Wook Shin , Yong Hak Suh , Young Jin Hong , Sung Ryong Hong
发明人： Kyung Won Kang , In Hwan Choi , Kook Yeon Kwak , Ja Hyuk Koo , Kyung Wook Shin , Yong Hak Suh , Young Jin Hong , Sung Ryong Hong
IPC分类号： H03M13/03
CPC分类号： H04N21/2383 , H03M13/1515 , H03M13/2936 , H04N21/4382
摘要： A digital television (DTV) transmitter/receiver and a method of processing data in the DTV transmitter/receiver are disclosed. In the DTV transmitter, a pre-processor pre-processes the enhanced data by coding the enhanced data for forward error correction (FEC) and expanding the FEC-coded enhanced data. A data formatter generates enhanced data packets including the pre-processed enhanced data and inserts known data to at least one of the enhanced data packets. A first multiplexer multiplexes the enhanced data packets with main data packets including the main data. And, an RS encoder RS-codes the multiplexed main and enhanced data packets, the RS encoder adding systematic parity data to each main data packet and adding RS parity place holders to each enhanced data packet. Herein, the RS encoder may insert non-systematic RS parity data or null data into the RS parity place holders included in each enhanced data packet.
摘要翻译：公开了一种数字电视（DTV）发射机/接收机以及在DTV发射机/接收机中处理数据的方法。在DTV发射机中，预处理器通过对用于前向纠错（FEC）的增强数据进行编码并扩展FEC编码的增强数据来预处理增强数据。数据格式化器产生包括预处理的增强数据的增强数据分组，并将已知数据插入到增强数据分组中的至少一个。第一复用器将增强的数据分组与包括主数据的主数据分组复用。并且，RS编码器对多路复用的主增强数据包进行RS编码，RS编码器将系统奇偶校验数据添加到每个主数据分组，并将RS奇偶校验位保持器添加到每个增强数据分组。这里，RS编码器可以将非系统RS奇偶校验数据或空数据插入到包括在每个增强数据分组中的RS奇偶校验位保持器中。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式