公开(公告)号：US08077806B2

公开(公告)日：2011-12-13

申请号：US11137563

申请日：2005-05-26

申请人： Toshihiko Nawa ,  Takeshi Inoue ,  Keitaro Otsuka

发明人： Toshihiko Nawa ,  Takeshi Inoue ,  Keitaro Otsuka

IPC分类号： H04L27/00

CPC分类号： H04L27/2273 ,  H04L2027/003 ,  H04L2027/0057 ,  H04L2027/0065 ,  H04L2027/0073

摘要： The wireless reception device has automatic frequency control unit for detecting, from a reception modulation signal frequency-converted to the baseband, a frequency deviation component of a carrier wave between transmission and reception sides that is contained in the reception modulation signal and removing the frequency deviation component from the reception modulation signal, the automatic frequency control unit having a frequency locking operation state and a steady state following the frequency locking operation. The wireless reception device further has modulation component removal unit for generating a synchronization detection reference signal by removing the modulation component of the received modulation signal; and match detection unit that detects a mismatch between the synchronization detection reference signal and the frequency deviation component detected by the automatic frequency control unit, wherein, when the match detection unit detects the mismatch, the automatic frequency control unit are controlled to the frequency locking operation state.

摘要翻译： 无线接收装置具有自动频率控制单元，用于从接收调制信号的频率转换为基带的接收调制信号中检测包含在接收调制信号中的发送侧和接收侧之间的载波的频率偏差分量，并且去除频率偏差 来自接收调制信号的分量，自动频率控制单元具有频率锁定操作状态和频率锁定操作之后的稳定状态。 无线接收装置还具有调制分量去除单元，用于通过去除所接收的调制信号的调制分量来产生同步检测参考信号; 以及匹配检测单元，其检测所述同步检测基准信号与由所述自动频率控制单元检测到的所述频率偏差成分之间的失配，其中，当所述匹配检测单元检测到所述不匹配时，所述自动频率控制单元被控制到所述频率锁定操作 州。

公开(公告)号：US20070168845A1

公开(公告)日：2007-07-19

申请号：US11278698

申请日：2006-04-05

申请人： Akira ENDO ,  Yuzo Nagai ,  Takeshi Inoue ,  Toshihiko Nawa ,  Keitaro Otsuka ,  Hitoshi Ando

发明人： Akira ENDO ,  Yuzo Nagai ,  Takeshi Inoue ,  Toshihiko Nawa ,  Keitaro Otsuka ,  Hitoshi Ando

IPC分类号： H03M13/03

CPC分类号： H03M13/4169

摘要： In the present invention, the most likely transition source state bits are selected according to the path metric of the state bits corresponding to the state bits that could be taken for the encoded bits to be input, and are stored in the survival path memory. Therefore in the trace back processing, the decoded bits can be output only by repeating the extraction of the most significant bit of the transition source state bits. As a consequence, trace back processing can be performed very simply, and decoding processing becomes possible in a short time even if a general purpose processor executes the software.

摘要翻译： 在本发明中，最可能的转换源状态位根据对应于要输入的编码位可采取的状态位的状态位的路径度量来选择，并存储在生存路径存储器中。 因此，在追溯处理中，仅通过重复提取转换源状态位的最高有效位才能输出解码位。 因此，即使通用处理器执行软件，也可以非常简单地执行回溯处理，并且可以在短时间内进行解码处理。

公开(公告)号：US20060171487A1

公开(公告)日：2006-08-03

申请号：US11137563

申请日：2005-05-26

申请人： Toshihiko Nawa ,  Takeshi Inoue ,  Keitaro Otsuka

发明人： Toshihiko Nawa ,  Takeshi Inoue ,  Keitaro Otsuka

IPC分类号： H04L27/22 ,  H04L27/06

CPC分类号： H04L27/2273 ,  H04L2027/003 ,  H04L2027/0057 ,  H04L2027/0065 ,  H04L2027/0073

摘要： The wireless reception device has automatic frequency control unit for detecting, from a reception modulation signal frequency-converted to the baseband, a frequency deviation component of a carrier wave between transmission and reception sides that is contained in the reception modulation signal and removing the frequency deviation component from the reception modulation signal, the automatic frequency control unit having a frequency locking operation state and a steady state following the frequency locking operation. The wireless reception device further has modulation component removal unit for generating a synchronization detection reference signal by removing the modulation component of the received modulation signal; and match detection unit that detects a mismatch between the synchronization detection reference signal and the frequency deviation component detected by the automatic frequency control unit, wherein, when the match detection unit detects the mismatch, the automatic frequency control unit are controlled to the frequency locking operation state.

摘要翻译： 无线接收装置具有自动频率控制单元，用于从接收调制信号的频率转换为基带的接收调制信号中检测包含在接收调制信号中的发送侧和接收侧之间的载波的频率偏差分量，并且去除频率偏差 来自接收调制信号的分量，自动频率控制单元具有频率锁定操作状态和频率锁定操作之后的稳定状态。 无线接收装置还具有调制分量去除单元，用于通过去除所接收的调制信号的调制分量来产生同步检测参考信号; 以及匹配检测单元，其检测所述同步检测基准信号与由所述自动频率控制单元检测到的所述频率偏差成分之间的失配，其中，当所述匹配检测单元检测到所述不匹配时，所述自动频率控制单元被控制到所述频率锁定操作 州。

公开(公告)号：US08718099B2

公开(公告)日：2014-05-06

申请号：US13301592

申请日：2011-11-21

申请人： Keitaro Otsuka ,  Takeshi Inoue ,  Kazuya Kitasako

发明人： Keitaro Otsuka ,  Takeshi Inoue ,  Kazuya Kitasako

IPC分类号： H04J4/00

CPC分类号： H04L7/041 ,  H04L5/0023 ,  H04L7/046 ,  H04L27/2613 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/2692

摘要： A transmission apparatus for converting a transmission data series into frequency-domain, converting the frequency-domain converted signal into time-domain signal, and transmitting the time-domain converted signal, the apparatus including: a preamble pattern generation unit which outputs at least two preamble patterns among second and third preamble patterns, including bit series in which each of bits of a first preamble pattern is continued for n bits (where n is an integer equal to or greater than 2) and for k bits (where k is an integer equal to or greater than 2, and k≠n), and the first preamble pattern; and a transmission unit which transmits the transmission signal including at least two of the preamble patterns output from the preamble pattern generation unit.

摘要翻译： 一种发送装置，用于将发送数据序列转换为频域，将频域转换信号转换成时域信号，并发送时域转换信号，该装置包括：前导码模式生成单元，输出至少两个 包括第二和第三前导码模式中的前导码模式，包括其中第n个前导码模式的每个比特连续进行n个比特（其中n是等于或大于2的整数）和k个比特（其中k是整数）的比特序列 等于或大于2，k≠n）和第一前导码模式; 以及发送单元，其发送包括从前导码模式生成单元输出的前导码模式中的至少两个的发送信号。

公开(公告)号：US08433011B2

公开(公告)日：2013-04-30

申请号：US13014980

申请日：2011-01-27

申请人： Keitaro Otsuka ,  Takeshi Inoue

发明人： Keitaro Otsuka ,  Takeshi Inoue

IPC分类号： H03D1/00

CPC分类号： H04L25/06 ,  H04L27/06

摘要： A signal processing device includes: a first correlator that sequentially multiplies a first receive signal including a pattern in a receive signal and a first reference pattern signal including a complex conjugate of a first partial signal of the first receive signal at a sampling timing to generate a first correlation voltage; a second correlator that sequentially multiplies the first receive signal and a second reference pattern signal including a complex conjugate of a second partial signal, which is behind the first partial signal, at a sampling timing to generate a second correlation voltage; and a phase difference generation circuit that generates a first phase difference between the first partial signal and the second partial signal based on a first correlation peak voltage obtained when the first correlation voltage has a peak value and a second correlation peak voltage obtained when the second correlation voltage has a peak value.

摘要翻译： 信号处理装置包括：第一相关器，其在采样定时顺序地将包括接收信号中的模式的第一接收信号和包括第一接收信号的第一部分信号的复共轭的第一参考模式信号相乘以产生 第一相关电压; 第二相关器，其以采样定时顺序地乘以所述第一接收信号和第二参考图形信号，所述第二参考图形信号包括位于所述第一部分信号之后的第二部分信号的复共轭，以产生第二相关电压; 以及相位差生成电路，其基于当所述第一相关电压具有峰值时获得的第一相关峰值电压和当所述第二相关电压具有峰值时获得的第二相关峰值电压，产生所述第一部分信号和所述第二部分信号之间的第一相位差 电压有峰值。

公开(公告)号：US20120140856A1

公开(公告)日：2012-06-07

申请号：US13241774

申请日：2011-09-23

申请人： Mitsumasa Yoshikawa ,  Keitaro Otsuka

发明人： Mitsumasa Yoshikawa ,  Keitaro Otsuka

IPC分类号： H04L27/00

CPC分类号： H04L1/04 ,  H04L1/0047 ,  H04L1/007 ,  H04L27/0012 ,  H04L27/2647 ,  H04L27/3488 ,  H04L2001/0093 ,  H04N21/4263

摘要： A receiving apparatus for being viewable of a first broadcast based on a first received signal received using a first frequency band as any one frequency band of a plurality of frequency bands, or being viewable of a second broadcast based on a second received signal received using a second frequency band as all frequency bands other than the first frequency band of the plurality of frequency bands, the receiving apparatus including: a receiving unit which receives a third received signal by using a third frequency band as any one frequency band of a plurality of frequency bands included in the second frequency band when the first broadcast is being viewed; and a control unit which determines whether the second broadcast is viewable or nor based on the third received signal, and switches from viewing of the first broadcast to viewing of the second broadcast.

摘要翻译： 一种接收装置，用于基于使用第一频带接收的第一接收信号作为多个频带中的任何一个频带，或者可以基于使用第一频带接收的第二接收信号来观看第一广播， 第二频带作为除了多个频带的第一频带以外的所有频带，所述接收装置包括：接收单元，其通过使用第三频带作为多个频率的任何一个频带来接收第三接收信号 当第一广播被观看时包括在第二频带中的频带; 以及控制单元，其确定第二广播是可视的还是基于第三接收信号，并且从观看第一广播切换到观看第二广播。