公开(公告)号：US20100289943A1

公开(公告)日：2010-11-18

申请号：US12717589

申请日：2010-03-04

申请人： Kenichi Tokoro ,  Takashi Seki

发明人： Kenichi Tokoro ,  Takashi Seki

IPC分类号： H04N11/02

CPC分类号： H04H20/59 ,  H04H40/27

摘要： A broadcasting receiver includes a demodulator, a detector, and a start flag storage unit. The demodulator demodulates received digital broadcasting and outputs a demodulated signal. The signal detector detects a synchronization signal and a start control signal from the demodulated signal. The synchronization signal and the start control signal are contained in an emergency alert broadcasting frame multiplexed onto the digital broadcasting. The start control signal indicates emergency alert broadcasting. The start flag storage unit stores a start flag indicating that the signal detector has detected the start control signal.

摘要翻译： 广播接收机包括解调器，检测器和起始标志存储单元。 解调器解调所接收的数字广播并输出解调信号。 信号检测器从解调信号检测同步信号和起始控制信号。 同步信号和起始控制信号被包含在复用到数字广播上的紧急警报广播帧中。 启动控制信号表示紧急警报广播。 开始标志存储单元存储指示信号检测器已经检测到起始控制信号的开始标志。

公开(公告)号：US20070116161A1

公开(公告)日：2007-05-24

申请号：US11562657

申请日：2006-11-22

申请人： Kenichi Tokoro ,  Takashi Seki

发明人： Kenichi Tokoro ,  Takashi Seki

IPC分类号： H04L1/02

CPC分类号： H04L1/0057 ,  H04B7/0854 ,  H04L1/0052 ,  H04L1/06 ,  H04L27/2647

摘要： Respective demodulated outputs from a plurality of branches 11a to 11d are fed to corresponding error correction units 13a to 13d and error-corrected. The error correction units 13a to 13d feed error signals to error determination units 14a to 14d. The error determination units 14a to 14d determine the error-incidence situations of the respective branches 11a to 11d and then output the determination results to a coefficient generation unit 15. Based on the results of determination by the error determination units 14a to 14d, the coefficient generation unit 15 obtains the synthesis coefficients for the respective branch outputs. The synthesis coefficients correspond to the error-incidence situations of the respective branch outputs and are appropriate values including no errors. By synthesizing the respective branch outputs by use of the synthesis coefficients, error-free data can be reproduced.

摘要翻译： 来自多个分支11a至11d的相应解调输出被馈送到相应的纠错单元13a至13d并进行纠错。 误差校正单元13a至13d将误差信号馈送到错误确定单元14a至14d。 错误确定单元14a至14d确定各个分支11a至11d的错误发生情况，然后将确定结果输出到系数生成单元15.基于错误确定单元14a的确定结果 到14天，系数生成单元15获得各分支输出的合成系数。 合成系数对应于各个分支输出的误差发生情况，并且是不包括错误的适当值。 通过使用合成系数合成各个分支输出，可以再现无错误的数据。

公开(公告)号：US08132067B2

公开(公告)日：2012-03-06

申请号：US12185470

申请日：2008-08-04

申请人： Kenichi Tokoro ,  Takashi Seki

发明人： Kenichi Tokoro ,  Takashi Seki

IPC分类号： G06F11/00

CPC分类号： H04L1/0045 ,  H04L1/0054 ,  H04L1/0056 ,  H04L27/2647

摘要： An OFDM receiving apparatus has N sets of reception and demodulation units which input one segment broadcasting signals of ground digital broadcasting received with N sets of antennas and demodulate the signals; a buffer unit which includes N sets of buffers which hold temporarily N sets of demodulated data, which are demodulated in the N sets of reception and demodulation units, respectively, and reads the N sets of demodulated data, which are written in the N sets of buffers, in time division; and an error correction unit which inputs N sets of demodulated data read from the buffer unit in time division, performs error correction one by one, and in the process of the error correction, multiplexes the N sets of demodulated data, which have been error-corrected, in a period not used by one segment reception to output the data as one TS multiplex data.

摘要翻译： OFDM接收装置具有N组接收和解调单元，其输入用N组天线接收的地面数字广播的一个段广播信号，并解调该信号; 一个缓冲单元，包括N组缓冲器，它们分别保存在N组接收和解调单元中解调的N组解调数据，并读取N组解调数据，这些N组解调数据写入N组 缓冲区，分时; 以及错误校正单元，其以时分方式输入从缓冲器单元读取的N组解调数据，逐个进行纠错，并且在纠错处理中，复用已经出错的N组解调数据， 在一段接收中未使用的时段中将该数据作为一个TS多路复用数据输出。

公开(公告)号：US08265121B2

公开(公告)日：2012-09-11

申请号：US12633403

申请日：2009-12-08

申请人： Kenichi Tokoro ,  Takashi Seki

发明人： Kenichi Tokoro ,  Takashi Seki

IPC分类号： H04B1/00

CPC分类号： H04N21/8547 ,  H04N21/4305 ,  H04N21/4382

摘要： Provided is a receiver including a receiving unit, a demodulator-decoder unit, a synchronization detecting unit, and an output control unit. The receiving unit receives digital broadcasting. The demodulator-decoder unit obtains an output including a transport stream through a demodulating processing and a decoding processing performed on a reception signal received by the receiving unit. The synchronization detecting unit secures synchronization on the basis of the reception signal received by the receiving unit, and generates a timing signal to be used in the demodulating processing and in the decoding processing. The output control unit outputs the output including the transport stream from the demodulator-decoder unit if the synchronization is secured. The output control unit fixes a logic level of the output including the transport stream if the synchronization is not secured.

摘要翻译： 提供了一种接收机，包括接收单元，解调器 - 解码器单元，同步检测单元和输出控制单元。 接收单元接收数字广播。 解调器 - 解码器单元通过对由接收单元接收的接收信号执行的解调处理和解码处理来获得包括传输流的输出。 同步检测单元根据由接收单元接收到的接收信号来确保同步，并产生将在解调处理和解码处理中使用的定时信号。 如果同步被确保，则输出控制单元输出包括来自解调器 - 解码器单元的传输流的输出。 如果不保证同步，则输出控制单元固定包括传输流的输出的逻辑电平。

公开(公告)号：US07961825B2

公开(公告)日：2011-06-14

申请号：US11562657

申请日：2006-11-22

申请人： Kenichi Tokoro ,  Takashi Seki

发明人： Kenichi Tokoro ,  Takashi Seki

IPC分类号： H04B7/10

CPC分类号： H04L1/0057 ,  H04B7/0854 ,  H04L1/0052 ,  H04L1/06 ,  H04L27/2647

摘要： Respective demodulated outputs from a plurality of branches 11a to 11d are fed to corresponding error correction units 13a to 13d and error-corrected. The error correction units 13a to 13d feed error signals to error determination units 14a to 14d. The error determination units 14a to 14d determine the error-incidence situations of the respective branches 11a to 11d and then output the determination results to a coefficient generation unit 15. Based on the results of determination by the error determination units 14a to 14d, the coefficient generation unit 15 obtains the synthesis coefficients for the respective branch outputs. The synthesis coefficients correspond to the error-incidence situations of the respective branch outputs and are appropriate values including no errors. By synthesizing the respective branch outputs by use of the synthesis coefficients, error-free data can be reproduced.

摘要翻译： 来自多个分支11a至11d的相应的解调输出被馈送到相应的纠错单元13a至13d并进行纠错。 误差校正单元13a至13d将误差信号馈送到误差确定单元14a至14d。 错误确定单元14a至14d确定各个分支11a至11d的错误发生情况，然后将确定结果输出到系数生成单元15.基于错误确定单元14a至14d的确定结果，系数 生成单元15获得各分支输出的合成系数。 合成系数对应于各个分支输出的误差发生情况，并且是不包括错误的适当值。 通过使用合成系数合成各个分支输出，可以再现无错误的数据。

公开(公告)号：US20100202568A1

公开(公告)日：2010-08-12

申请号：US12633403

申请日：2009-12-08

申请人： Kenichi Tokoro ,  Takashi Seki

发明人： Kenichi Tokoro ,  Takashi Seki

IPC分类号： H04L27/06

CPC分类号： H04N21/8547 ,  H04N21/4305 ,  H04N21/4382

摘要： Provided is a receiver including a receiving unit, a demodulator-decoder unit, a synchronization detecting unit, and an output control unit. The receiving unit receives digital broadcasting. The demodulator-decoder unit obtains an output including a transport stream through a demodulating processing and a decoding processing performed on a reception signal received by the receiving unit. The synchronization detecting unit secures synchronization on the basis of the reception signal received by the receiving unit, and generates a timing signal to be used in the demodulating processing and in the decoding processing. The output control unit outputs the output including the transport stream from the demodulator-decoder unit if the synchronization is secured. The output control unit fixes a logic level of the output including the transport stream if the synchronization is not secured.

摘要翻译： 提供了一种接收机，包括接收单元，解调器 - 解码器单元，同步检测单元和输出控制单元。 接收单元接收数字广播。 解调器 - 解码器单元通过对由接收单元接收的接收信号执行的解调处理和解码处理来获得包括传输流的输出。 同步检测单元根据由接收单元接收到的接收信号来确保同步，并产生将在解调处理和解码处理中使用的定时信号。 如果同步被确保，则输出控制单元输出包括来自解调器 - 解码器单元的传输流的输出。 如果不保证同步，则输出控制单元固定包括传输流的输出的逻辑电平。

公开(公告)号：US20120210191A1

公开(公告)日：2012-08-16

申请号：US13231074

申请日：2011-09-13

申请人： Kenichi Tokoro ,  Masami Aizawa

发明人： Kenichi Tokoro ,  Masami Aizawa

IPC分类号： H03M13/29 ,  G06F11/10

CPC分类号： H03M13/253 ,  H03M13/256 ,  H03M13/2936 ,  H03M13/2948 ,  H03M13/6325 ,  H04L1/005 ,  H04L1/0054 ,  H04L1/0065 ,  H04L1/0071 ,  H04L2001/0093

摘要： According to one embodiment, an error correcting decoder includes a first error correction decoding module, an interleaving module, a delay module, a second error correction decoding module, and a corrector. The first error correction decoding module performs a first error correction decoding to a received signal in accordance with a broadcasting system. The interleaving module rearranges a data array of an output of the first error correction decoding module in a second order. The data array is ordered in a first order which is reverse to the second order. The delay module delays the received signal by a processing time of the first error correction decoding module. The second error correction decoding module performs a second error correction decoding to an output of the interleaving module and an output of the delay module. The corrector configured to correct a delay of an output of the second error correction decoding module based on a packet position defined by the broadcasting system.

摘要翻译： 根据一个实施例，纠错解码器包括第一纠错解码模块，交织模块，延迟模块，第二纠错解码模块和校正器。 第一纠错解码模块根据广播系统对接收到的信号执行第一纠错解码。 交织模块以第二顺序重排第一纠错解码模块的输出的数据阵列。 数据数组以与第二个顺序相反的第一个顺序排序。 延迟模块将接收信号延迟第一纠错解码模块的处理时间。 第二纠错解码模块对交织模块的输出和延迟模块的输出执行第二纠错解码。 校正器被配置为基于由广播系统定义的分组位置来校正第二纠错解码模块的输出的延迟。

公开(公告)号：US08683287B2

公开(公告)日：2014-03-25

申请号：US13231074

申请日：2011-09-13

申请人： Kenichi Tokoro ,  Masami Aizawa

发明人： Kenichi Tokoro ,  Masami Aizawa

IPC分类号： H03M13/00

CPC分类号： H03M13/253 ,  H03M13/256 ,  H03M13/2936 ,  H03M13/2948 ,  H03M13/6325 ,  H04L1/005 ,  H04L1/0054 ,  H04L1/0065 ,  H04L1/0071 ,  H04L2001/0093

摘要： According to one embodiment, an error correcting decoder includes a first error correction decoding module, an interleaving module, a delay module, a second error correction decoding module, and a corrector. The first error correction decoding module performs a first error correction decoding to a received signal in accordance with a broadcasting system. The interleaving module rearranges a data array of an output of the first error correction decoding module in a second order. The data array is ordered in a first order which is reverse to the second order. The delay module delays the received signal by a processing time of the first error correction decoding module. The second error correction decoding module performs a second error correction decoding to an output of the interleaving module and an output of the delay module. The corrector configured to correct a delay of an output of the second error correction decoding module based on a packet position defined by the broadcasting system.

摘要翻译： 根据一个实施例，纠错解码器包括第一纠错解码模块，交织模块，延迟模块，第二纠错解码模块和校正器。 第一纠错解码模块根据广播系统对接收到的信号执行第一纠错解码。 交织模块以第二顺序重排第一纠错解码模块的输出的数据阵列。 数据数组以与第二个顺序相反的第一个顺序排序。 延迟模块将接收信号延迟第一纠错解码模块的处理时间。 第二纠错解码模块对交织模块的输出和延迟模块的输出执行第二纠错解码。 校正器被配置为基于由广播系统定义的分组位置来校正第二纠错解码模块的输出的延迟。

公开(公告)号：US20080192845A1

公开(公告)日：2008-08-14

申请号：US11964212

申请日：2007-12-26

申请人： Masami AIZAWA ,  Kenichi Tokoro

发明人： Masami AIZAWA ,  Kenichi Tokoro

IPC分类号： H04L27/28

CPC分类号： H04L27/2656 ,  H04L1/0054 ,  H04L25/03866 ,  H04L27/2602 ,  H04L27/2675

摘要： A receiver includes a receiving section configured to receive digital broadcasts; a demodulating section configured to demodulate a signal received by the receiving section and output a frame-based signal including a plurality of symbols; a detecting section configured to detect a symbol position in a frame-based signal provided from the demodulating section; a decoding section configured to decode a frame-based signal from the demodulating section in accordance with a symbol position; a symbol counter configured to output a count output specifying a symbol position in a signal decoded in the decoding section; and a control section configured to control counting of the symbol counter on the basis of a symbol position detected by the detecting section and on a count value of the symbol counter.

摘要翻译： 接收机包括接收部分，被配置为接收数字广播; 解调部，被配置为对由所述接收部接收到的信号进行解调，并输出包含多个符号的基于帧的信号; 检测部，被配置为检测从所述解调部提供的基于帧的信号中的符号位置; 解码部分，被配置为根据符号位置对来自解调部分的基于帧的信号进行解码; 符号计数器，被配置为输出指定在解码部分解码的信号中的符号位置的计数输出; 以及控制部，被配置为基于由所述检测部检测的符号位置和所述符号计数器的计数值来控制所述符号计数器的计数。

公开(公告)号：US07885356B2

公开(公告)日：2011-02-08

申请号：US11964212

申请日：2007-12-26

申请人： Masami Aizawa ,  Kenichi Tokoro

发明人： Masami Aizawa ,  Kenichi Tokoro

IPC分类号： H04L27/00

CPC分类号： H04L27/2656 ,  H04L1/0054 ,  H04L25/03866 ,  H04L27/2602 ,  H04L27/2675

摘要： A receiver includes a receiving section configured to receive digital broadcasts; a demodulating section configured to demodulate a signal received by the receiving section and output a frame-based signal including a plurality of symbols; a detecting section configured to detect a symbol position in a frame-based signal provided from the demodulating section; a decoding section configured to decode a frame-based signal from the demodulating section in accordance with a symbol position; a symbol counter configured to output a count output specifying a symbol position in a signal decoded in the decoding section; and a control section configured to control counting of the symbol counter on the basis of a symbol position detected by the detecting section and on a count value of the symbol counter.

摘要翻译： 接收机包括接收部分，被配置为接收数字广播; 解调部，被配置为对由所述接收部接收到的信号进行解调，并输出包含多个符号的基于帧的信号; 检测部，被配置为检测从所述解调部提供的基于帧的信号中的符号位置; 解码部分，被配置为根据符号位置对来自解调部分的基于帧的信号进行解码; 符号计数器，被配置为输出指定在解码部分解码的信号中的符号位置的计数输出; 以及控制部，被配置为基于由所述检测部检测的符号位置和所述符号计数器的计数值来控制所述符号计数器的计数。