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1. 发明授权

US09590834B2 Radio communication apparatus capable of switching modulation schemes 有权
标题翻译：能够切换调制方式的无线通信装置
公开(公告)号：US09590834B2
公开(公告)日：2017-03-07
申请号：US13486244
申请日：2012-06-01
申请人： Yutaka Murakami , Shinichiro Takabayashi , Katsuaki Abe , Masayuki Orihashi , Akihiko Matsuoka
发明人： Yutaka Murakami , Shinichiro Takabayashi , Katsuaki Abe , Masayuki Orihashi , Akihiko Matsuoka
IPC分类号： H04L27/20 , H04L27/34 , H04B1/04 , H04L1/00
CPC分类号： H04L27/3405 , H03F1/02 , H03F3/24 , H04B1/0475 , H04B2001/0416 , H04B2001/045 , H04L1/0003 , H04L27/2082 , H04L27/2601 , H04L27/34 , H04L27/3494 , H04L2203/00
摘要： A transmitting apparatus, includes a signal generator that generates a modulation signal by modulating transmission data using one of a plurality of modulation schemes, a first modulation scheme having a higher m-ary modulation value than other modulation schemes and a pilot signal generator generates a pilot signal. An orthogonal frequency division multiplexing (OFDM) signal generator generates an OFDM signal by selecting the modulation signal and the pilot signal according to the frame timing signal. The OFDM signal is converted to a radio signal, is amplified and is transmitted to an antenna. The pilot signal is inserted in the OFDM signal per a predetermined OFDM symbol and per a predetermined subcarrier and has a lower amplitude than a maximum amplitude of the first modulation scheme in an in-phase-quadrature (IQ) plane.
摘要翻译：一种发送装置，包括：信号发生器，其通过使用多个调制方式之一调制发送数据来生成调制信号;第一调制方式，具有比其他调制方式更高的微分调制值，并且导频信号发生器产生导频信号。正交频分复用（OFDM）信号发生器通过根据帧定时信号选择调制信号和导频信号来生成OFDM信号。 OFDM信号被转换为无线电信号，被放大并被发送到天线。导频信号按照预定的OFDM符号和每个预定的子载波插入OFDM信号中，并且具有比同相正交（IQ）平面中的第一调制方案的最大幅度更低的振幅。

2. 发明授权

US09294165B2 Signal generating method and signal generating device 有权
标题翻译：信号发生方法和信号发生装置
公开(公告)号：US09294165B2
公开(公告)日：2016-03-22
申请号：US14111070
申请日：2012-04-18
申请人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
发明人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
IPC分类号： H04B7/04 , H04B7/06 , H04B17/00 , H04W52/22 , H04J11/00
CPC分类号： H04B7/0602 , H04B1/0096 , H04B7/0413 , H04B7/0456 , H04B7/0682 , H04B17/0085 , H04B17/12 , H04J11/0033 , H04L12/189 , H04L27/36 , H04L27/38 , H04L65/4076 , H04W52/225
摘要： A transmission method of simultaneously transmitting a first modulated signal and a second modulated signal at a common frequency performs precoding on both signals using a fixed precoding matrix and regularly changes the phase of at least one of the signals. One of signal generation processing in which phase change is performed and signal generation processing in which phase change is not performed is selectable, thereby improving general versatility in signal generation.
摘要翻译：以公共频率同时发送第一调制信号和第二调制信号的传输方法使用固定预编码矩阵对两个信号执行预编码，并且定期地改变至少一个信号的相位。执行相变的信号生成处理和不执行相位变化的信号生成处理之一是可选择的，从而提高信号生成的通用性。

3. 发明授权

US09250678B2 Information processing apparatus, and computer-readable storage medium having startup/shutdown control program stored therein 有权
标题翻译：信息处理装置和存储有启动/关闭控制程序的计算机可读存储介质
公开(公告)号：US09250678B2
公开(公告)日：2016-02-02
申请号：US12750339
申请日：2010-03-30
申请人： Hiroshi Sasaki , Yutaka Murakami
发明人： Hiroshi Sasaki , Yutaka Murakami
IPC分类号： G06F1/32 , G06F9/44 , G06F1/26
CPC分类号： G06F1/3203 , G06F1/26 , G06F1/3287 , G06F9/4401 , G06F9/4406 , Y02D10/171
摘要： An information processing apparatus includes a nonvolatile memory, a volatile memory, and a process control section. A startup program to be required when starting up the information processing apparatus has previously been stored in the nonvolatile memory. When a command to start up the apparatus is received, it is determined whether or not the startup program is present in the volatile memory. When the startup program is absent, the startup program is loaded from the nonvolatile memory into the volatile memory. Thereafter, when a command to turn off the power of the information processing apparatus is received, supply of power to other components of the information processing apparatus than the volatile memory is stopped while maintaining supply of power to the volatile memory, thereby to shutdown the power of the information processing apparatus.
摘要翻译：信息处理装置包括非易失性存储器，易失性存储器和过程控制部分。启动信息处理装置时所需的启动程序先前已经存储在非易失性存储器中。当接收到启动装置的命令时，确定启动程序是否存在于易失性存储器中。当启动程序不存在时，启动程序从非易失性存储器加载到易失性存储器中。此后，当接收到关闭信息处理设备的电源的命令时，停止向易失性存储器提供与信息处理设备的其他组件的电力，同时保持对易失性存储器的电力供应，从而关闭电源的信息处理装置。

4. 发明授权

US09106486B2 Transmission apparatus, reception apparatus and digital radio communication method 有权
标题翻译：发送装置，接收装置和数字无线通信方式
公开(公告)号：US09106486B2
公开(公告)日：2015-08-11
申请号：US13613407
申请日：2012-09-13
申请人： Yutaka Murakami , Shinichiro Takabayashi , Masayuki Orihashi , Akihiko Matsuoka
发明人： Yutaka Murakami , Shinichiro Takabayashi , Masayuki Orihashi , Akihiko Matsuoka
IPC分类号： H04B15/00 , H04L27/12 , H04L1/00 , H04L27/20 , H04L27/34
CPC分类号： H04L27/12 , H04B1/38 , H04L1/0003 , H04L1/0006 , H04L27/206 , H04L27/34 , H04L27/3455
摘要： A transmission method includes generating first symbols for transmitting data, a signal point of each of the first symbols on an in-phase and quadrature-phase plane comprising an in-phase component and a quadrature-phase component and generating a second symbol, the second symbol being a pilot symbol. The method further includes selecting an insertion pattern of the second symbol, from a plurality of predetermined insertion patterns, inserting the second symbol in the first symbols based on the selected insertion pattern to generate a transmission signal, and transmitting the transmission signal. The first symbols are generated using a modulation scheme selected from a plurality of modulation schemes.
摘要翻译：传输方法包括产生用于发送数据的第一符号，包括同相分量和正交相分量的同相和正交相平面中的每个第一符号的信号点并产生第二符号，第二符号符号是一个飞行员符号。该方法还包括从多个预定插入模式中选择第二符号的插入模式，基于所选择的插入模式将第二符号插入到第一符号中以产生发送信号，并发送发送信号。使用从多个调制方案中选择的调制方案来生成第一符号。

5. 发明授权

US08989237B2 Relay method and relay device 有权
标题翻译：继电器方式和继电器
公开(公告)号：US08989237B2
公开(公告)日：2015-03-24
申请号：US14110783
申请日：2012-04-18
申请人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
发明人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
IPC分类号： H04B3/36 , H04B7/17 , H04B17/02 , H04L25/20 , H04L25/52 , H04L25/03 , H04L27/34 , H04B7/04 , H04B7/155 , H04L27/26 , H04L5/00 , H04B7/06
CPC分类号： H04B7/15542 , H04B7/0413 , H04B7/0456 , H04B7/0604 , H04L5/0023 , H04L25/03171 , H04L25/0391 , H04L25/03949 , H04L27/2614 , H04L27/34 , H04W4/06 , H04W40/22
摘要： Disclosed is a relay method including: receiving, as input, respective reception signals by two receive antennas, the reception signals each including a reception signal resulting from multiplexing respective transmission signals transmitted by two transmission antennas in a first frequency band; performing frequency conversion on the reception signal received by one of the receive antennas so as to obtain a signal of a third frequency band; and performing frequency multiplexing on the signal having the third frequency band and the reception signal received by the other of the receive antennas.
摘要翻译：公开了一种中继方法，包括：通过两个接收天线接收作为输入的各个接收信号，所述接收信号各自包括由在第一频带中的两个发送天线发送的各个发送信号复用而得到的接收信号; 对接收天线之一接收的接收信号进行频率变换，以获得第三频带的信号; 以及对具有第三频带的信号和由另一个接收天线接收的接收信号执行频率复用。

6. 发明授权

US08971432B2 Signal generating method and signal generating device 有权
标题翻译：信号发生方法和信号发生装置
公开(公告)号：US08971432B2
公开(公告)日：2015-03-03
申请号：US14110795
申请日：2012-04-18
申请人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
发明人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
IPC分类号： H04K1/10 , H04L27/28 , H04B7/04 , H04W52/42 , H04B7/06 , H04B7/08 , H04J11/00
CPC分类号： H04B7/0697 , H04B7/0413 , H04B7/0426 , H04B7/0456 , H04B7/046 , H04B7/0465 , H04B7/0617 , H04B7/0682 , H04B7/0862 , H04J11/0033 , H04L25/0391 , H04W52/42
摘要： A transmission method for transmitting a first modulated signal and a second modulated signal in the same frequency at the same time. Each signal has been modulated according to a different modulation scheme. The transmission method applies precoding on both signals using a fixed precoding matrix, applies different power change to each signal, and regularly changes the phase of at least one of the signals, thereby improving received data signal quality for a reception device.
摘要翻译：一种发送方法，用于同时发送相同频率的第一调制信号和第二调制信号。每个信号已经根据不同的调制方案被调制。传输方法使用固定预编码矩阵对两个信号应用预编码，对每个信号应用不同的功率变化，并且规则地改变至少一个信号的相位，从而提高接收设备的接收数据信号质量。

7. 发明授权

US08948305B2 Transmission method, transmission apparatus, reception method and reception apparatus 有权
标题翻译：发送方法，发送装置，接收方法和接收装置
公开(公告)号：US08948305B2
公开(公告)日：2015-02-03
申请号：US13295431
申请日：2011-11-14
申请人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
发明人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
IPC分类号： H04L27/00 , H04L25/03 , H04L27/34
CPC分类号： H04B7/0482 , H04B7/0413 , H04B7/0456 , H04B7/0617 , H04B7/0871 , H04L1/0003 , H04L1/0014 , H04L25/03171 , H04L25/03343 , H04L27/3405 , H04L2025/03426 , H04L2025/03808 , H04W72/0413 , H04W72/042 , H04W72/044
摘要： All data symbols used in data transmission of a modulated signal are precoded by hopping between precoding matrices so that the precoding matrix used to precode each data symbol and the precoding matrices used to precode data symbols that are adjacent to the data symbol in the frequency domain and the time domain all differ. A modulated signal with such data symbols arranged therein is transmitted.
摘要翻译：在调制信号的数据传输中使用的所有数据符号通过预编码矩阵之间的跳变进行预编码，使得用于预编码每个数据符号的预编码矩阵和用于预编码与频域中的数据符号相邻的数据符号的预编码矩阵，以及时域完全不同发送其中布置有这样的数据符号的调制信号。

8. 发明授权

US08831134B2 Transmission method, transmission device, reception method, and reception device 有权
标题翻译：发送方式，发送装置，接收方式和接收装置
公开(公告)号：US08831134B2
公开(公告)日：2014-09-09
申请号：US13811021
申请日：2011-10-17
申请人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
发明人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
IPC分类号： H04L25/49 , H04L1/00 , H04L25/03 , H04L5/00 , H04L27/26
CPC分类号： H04B7/046 , H04B7/0417 , H04B7/0456 , H04B7/0478 , H04L1/0042 , H04L1/007 , H04L5/0007 , H04L5/0023 , H04L5/0046 , H04L5/0048 , H04L5/0053 , H04L25/0391 , H04L25/03942 , H04L25/4906 , H04L27/2032 , H04L27/22 , H04L27/2601 , H04L27/2602
摘要： Provided is a precoding method for generating, from a plurality of baseband signals, a plurality of precoded signals to be transmitted over the same frequency bandwidth at the same time, including the steps of selecting a matrix F[i] from among N matrices, which define precoding performed on the plurality of baseband signals, while switching between the N matrices, i being an integer from 0 to N−1, and N being an integer at least two, generating a first precoded signal z1 and a second precoded signal z2, generating a first encoded block and a second encoded block using a predetermined error correction block encoding method, generating a baseband signal with M symbols from the first encoded block and a baseband signal with M symbols the second encoded block, and precoding a combination of the generated baseband signals to generate a precoded signal having M slots.
摘要翻译：提供了一种预编码方法，用于从多个基带信号中同时生成要在相同频率带宽上发送的多个预编码信号，包括以下步骤：从N个矩阵中选择矩阵F [i]，其中定义对多个基带信号执行的预编码，同时在N个矩阵之间切换，i是0到N-1的整数，N是至少为2的整数，产生第一预编码信号z1和第二预编码信号z2，使用预定的纠错块编码方法生成第一编码块和第二编码块，从第一编码块生成具有M个符号的基带信号和具有M个符号的基带信号的第二编码块，并且对所生成的基带信号以产生具有M个时隙的预编码信号。

9. 发明授权

US08769370B2 Encoding method, decoding method, encoder, and decoder 有权
标题翻译：编码方法，解码方法，编码器和解码器
公开(公告)号：US08769370B2
公开(公告)日：2014-07-01
申请号：US13583824
申请日：2012-01-20
申请人： Yutaka Murakami
发明人： Yutaka Murakami
IPC分类号： H03M13/00 , G06F11/00
CPC分类号： H03M13/373 , H03M13/1154 , H03M13/6356
摘要： An encoding method generates a parity bit sequence by encoding an information sequence with feed-forward LDPC convolutional codes based on a plurality of parity check polynomials each having a coding rate of (n−1)/n, then performs an interleaving process and an accumulation process. The accumulation process is an exclusive OR operation performed on bits of the interleaved parity bit sequence and on bits of a delayed accumulated parity bit sequence. A coded sequence is then generated from the information sequence and the accumulated parity bit sequence.
摘要翻译：编码方法通过基于多个具有编码率（n-1）/ n的奇偶校验多项式对具有前馈LDPC卷积码的信息序列进行编码来生成奇偶校验位序列，然后执行交织处理和累积处理。累积处理是对交织的奇偶校验位序列的比特和延迟的累加奇偶校验位序列的比特执行的异或运算。然后从信息序列和累加的奇偶校验位序列生成编码序列。

10. 发明申请

US20140136921A1 ENCODING METHOD, DECODING METHOD 有权
标题翻译：编码方法，解码方法
公开(公告)号：US20140136921A1
公开(公告)日：2014-05-15
申请号：US14131844
申请日：2012-07-24
申请人： Yutaka Murakami
发明人： Yutaka Murakami
IPC分类号： G06F11/10
CPC分类号： G06F11/10 , H03M13/036 , H03M13/09 , H03M13/1154 , H03M13/118 , H03M13/611 , H03M13/616 , H03M13/635
摘要： An encoding method generates an encoded sequence by performing encoding of a given coding rate according to a predetermined parity check matrix. The predetermined parity check matrix is a first parity check matrix or a second parity check matrix. The first parity check matrix corresponds to a low-density parity check (LDPC) convolutional code using a plurality of parity check polynomials. The second parity check matrix is generated by performing at least one of row permutation and column permutation with respect to the first parity check matrix. An eth parity check polynomial that satisfies zero, of the LDPC convolutional code, is expressible by using a predetermined mathematical formula.
摘要翻译：编码方法通过根据预定奇偶校验矩阵执行给定编码率的编码来生成编码序列。预定奇偶校验矩阵是第一奇偶校验矩阵或第二奇偶校验矩阵。第一奇偶校验矩阵对应于使用多个奇偶校验多项式的低密度奇偶校验（LDPC）卷积码。通过相对于第一奇偶校验矩阵执行行置换和列置换中的至少一个来生成第二奇偶校验矩阵。通过使用预定的数学公式可以表达满足零卷积码的零奇偶校验多项式。

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