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1. 发明公开

US20230336392A1 COMMUNICATION APPARATUS, INFORMATION PROCESSING APPARATUS, CONTROL METHOD, AND STORAGE MEDIUM 审中-公开
公开(公告)号：US20230336392A1
公开(公告)日：2023-10-19
申请号：US18340559
申请日：2023-06-23
申请人： CANON KABUSHIKI KAISHA
发明人： Tomoyuki Takada
IPC分类号： H04L27/26 , H04W84/12 , H04W88/10 , H04L1/00 , H04L5/00 , H04L27/20
CPC分类号： H04L27/2613 , H04W84/12 , H04W88/10 , H04L1/0006 , H04L5/0007 , H04L27/2085 , H04L27/2602 , H04L27/26136
摘要： A communication apparatus transmits or receives an Extremely High Throughput (EHT) single-user (SU) physical-layer protocol data unit (PPDU), an EHT extended range (ER) SU PPDU, or an EHT multi-user (MU) PPDU. The transmitted or received EHT PPDU includes an EHT signal field (EHT-SIG) which includes a field indicating information regarding semi-orthogonal multiple access (SOMA).

2. 发明申请

US20160197752A1 NON-DETERMINISTIC PILOT SYMBOL SCHEME 审中-公开
标题翻译：非确定性引导符号方案
公开(公告)号：US20160197752A1
公开(公告)日：2016-07-07
申请号：US14909492
申请日：2014-08-14
申请人： ALCATEL LUCENT
发明人： Laurent SCHMALEN
IPC分类号： H04L27/20 , H04L5/00 , H04L27/34
CPC分类号： H04L27/2085 , H04L5/0048 , H04L25/0228 , H04L25/0238 , H04L27/3455 , H04L27/3483
摘要： Embodiments relate to a transmitter (71) for transmitting a signal comprising data symbols and non-deterministic pilot symbols. The transmitter includes a mapper (712) operable to map one or more non-deterministic bits (u) to a non-deterministic pilot symbol having a pilot symbol phase in a predetermined pilot symbol phase range; and a pilot symbol inserter (115) operable to insert the pilot symbol into a stream of data symbols. Further, embodiments also relate to a corresponding receiver (73) for receiving a stream of data and pilot symbols. The receiver includes a phase estimator (737) operable to estimate a phase of a transmission channel based on a comparison of a received symbol corresponding to a pilot symbol position with a hypothetical pilot symbol, the hypothetical pilot symbol corresponding to one or more hypothetical non-deterministic bits (u) and having a pilot symbol phase in a predetermined pilot symbol phase range.
摘要翻译：实施例涉及用于发送包括数据符号和非确定性导频符号的信号的发射机（71）。发射机包括映射器（712），其可操作以将一个或多个非确定性比特（u）映射到在预定导频符号相位范围内具有导频符号相位的非确定性导频符号; 以及导频符号插入器（115），其可操作以将导频符号插入到数据符号流中。此外，实施例还涉及用于接收数据流和导频符号的相应接收机（73）。接收机包括相位估计器（737），其可操作以基于对应于导频符号位置的接收符号与假想导频符号的比较来估计传输信道的相位，假想导频符号对应于一个或多个假想非导频符号，确定性比特（u），并且在预定导频符号相位范围内具有导频符号相位。

3. 发明申请

US20150117281A1 RF DIPLEXER 有权
公开(公告)号：US20150117281A1
公开(公告)日：2015-04-30
申请号：US14547502
申请日：2014-11-19
申请人： RF Micro Devices, Inc.
发明人： Nadim Khlat , Marcus Granger-Jones
IPC分类号： H04L5/08
CPC分类号： H03H7/463 , H03H7/48 , H04B1/0057 , H04B1/40 , H04B1/50 , H04B10/556 , H04L5/08 , H04L27/2085
摘要： Embodiments of a tunable radio frequency (RF) diplexer and methods of operating the same are disclosed. In one embodiment, the RF diplexer includes a first hybrid coupler, a second hybrid coupler, an RF filter circuit, and a phase inversion component. Both the RF filter circuit and the phase inversion component are connected between the first hybrid coupler and the second hybrid coupler. The phase inversion component is configured to provide approximately a differential phase. The RF filter circuit is configured to provide a passband and a notch. The RF filter circuit is tunable to provide the notch on both a high-frequency side of the passband and a low frequency side of the passband. Accordingly, the tunable RF diplexer provides lower insertion losses and higher isolation regardless of whether the one of the diplexed frequency bands is set at higher frequencies or lower frequencies than the other diplexed frequency band.
摘要翻译：公开了可调谐射频（RF）双工器的实施例及其操作方法。在一个实施例中，RF双工器包括第一混合耦合器，第二混合耦合器，RF滤波器电路和相位反转分量。 RF滤波器电路和相位反转分量都连接在第一混合耦合器和第二混合耦合器之间。相位反转分量被配置为提供大致差分相位。 RF滤波器电路被配置为提供通带和陷波。 RF滤波器电路是可调谐的，以在通带的高频侧和通带的低频侧提供陷波。因此，可调谐RF双工器提供较低的插入损耗和更高的隔离度，而不管双工频带中的一个是否设置在比另一个双工频带更高的频率或更低的频率。

4. 发明申请

US20090257755A1 Modulation scheme with increased number of states of polarization 有权
标题翻译：具有增加极化状态数的调制方案
公开(公告)号：US20090257755A1
公开(公告)日：2009-10-15
申请号：US12384320
申请日：2009-04-02
申请人： Henning Buelow
发明人： Henning Buelow
IPC分类号： H04B10/04
CPC分类号： H04B10/5561 , H04B10/505 , H04B10/532 , H04B10/548 , H04J14/06 , H04L5/0014 , H04L5/04 , H04L5/12 , H04L27/2085 , H04L27/2096 , H04L27/3416
摘要： A modulation method for optical communication comprises the step of generating an optical signal modulated between a plurality of different states of polarization and between different phase states. The plurality of states of polarization comprises first states of polarization. The first states of polarization define a single great circle on the Poincaré sphere. The method is characterized in that the plurality of states of polarization further comprise one or more second states of polarization located outside the great circle. Such additional second states of polarization increase the symbol alphabet.
摘要翻译：一种用于光通信的调制方法包括以下步骤：产生在多个不同的极化状态和不同相位状态之间调制的光信号。多个极化状态包括第一极化状态。第一极化状态在庞加莱球体上定义了一个大圆圈。该方法的特征在于，多个极化状态还包括位于大圆外侧的一个或多个第二极化状态。这种附加的第二极化状态增加了符号字母表。

5. 发明授权

US07359452B2 Systems and methods for designing a high-precision narrowband digital filter for use in a communications system with high spectral efficiency 失效
标题翻译：用于设计具有高光谱效率的通信系统中的高精度窄带数字滤波器的系统和方法
公开(公告)号：US07359452B2
公开(公告)日：2008-04-15
申请号：US11900249
申请日：2007-09-10
申请人： Alvin Dale Kluesing , Sai C. Manapragada
发明人： Alvin Dale Kluesing , Sai C. Manapragada
IPC分类号： H04L27/00 , H04L27/20 , H04L23/00
CPC分类号： H04L27/2085 , H04L25/03834 , H04L27/02 , H04L27/2078
摘要： Systems and methods for transmitting information at very high data rates through narrowband communication channels are provided. The systems and methods involve modulating a message signal with a novel return-to-zero, abrupt phase modulation technique and filtering the modulated signal with a sophisticated high-precision digital filter. The digital filter is designed based on fractal modeling of the frequency spectrum of the modulated signal. The systems and methods of the present invention enable data rates exceeding 5 Mbps to be delivered through frequency channels as narrow as 50 KHz under a variety of channel conditions.
摘要翻译：提供了通过窄带通信信道以非常高的数据速率发送信息的系统和方法。该系统和方法包括利用新颖的归零，突变相位调制技术来调制消息信号，并用复杂的高精度数字滤波器对调制信号进行滤波。数字滤波器是基于调制信号频谱的分形建模而设计的。本发明的系统和方法使得超过5Mbps的数据速率可以在各种信道条件下通过频率信道传输到50KHz。

6. 发明申请

US20080002784A1 Systems and methods for designing a high-precision narrowband digital filter for use in a communications system with high spectral efficiency 失效
公开(公告)号：US20080002784A1
公开(公告)日：2008-01-03
申请号：US11900249
申请日：2007-09-10
申请人： Alvin Kluesing , Sai Manapragada
发明人： Alvin Kluesing , Sai Manapragada
IPC分类号： H04L27/00 , H04L23/00
CPC分类号： H04L27/2085 , H04L25/03834 , H04L27/02 , H04L27/2078
摘要： Systems and methods for transmitting information at very high data rates through narrowband communication channels are provided. The systems and methods involve modulating a message signal with a novel return-to-zero, abrupt phase modulation technique and filtering the modulated signal with a sophisticated high-precision digital filter. The digital filter is designed based on fractal modeling of the frequency spectrum of the modulated signal. The systems and methods of the present invention enable data rates exceeding 5 Mbps to be delivered through frequency channels as narrow as 50 KHz under a variety of channel conditions.

7. 发明授权

US11729035B2 Communication apparatus, information processing apparatus, control method, and storage medium 有权
公开(公告)号：US11729035B2
公开(公告)日：2023-08-15
申请号：US16908088
申请日：2020-06-22
申请人： CANON KABUSHIKI KAISHA
发明人： Tomoyuki Takada
IPC分类号： H04L5/00 , H04L1/00 , H04L27/20 , H04L27/26 , H04W84/12 , H04W88/10
CPC分类号： H04L27/2613 , H04L1/0006 , H04L5/0007 , H04L27/2085 , H04L27/2602 , H04W84/12 , H04W88/10 , H04L27/26136
摘要： A communication apparatus transmits or receives an Extremely High Throughput (EHT) single-user (SU) physical-layer protocol data unit (PPDU), an EHT extended range (ER) SU PPDU, or an EHT multi-user (MU) PPDU. The transmitted or received EHT PPDU includes an EHT signal field (EHT-SIG) which includes a field indicating information regarding semi-orthogonal multiple access (SOMA).

8. 发明授权

US09985682B2 Broadband isolation low-loss ISM/MB-HB tunable diplexer 有权
公开(公告)号：US09985682B2
公开(公告)日：2018-05-29
申请号：US14523065
申请日：2014-10-24
申请人： Qorvo US, Inc.
发明人： Nadim Khlat , Marcus Granger-Jones
IPC分类号： H04B1/00 , H04B1/50 , H04B10/556 , H04L5/08 , H04L27/20
CPC分类号： H04B1/50 , H04B1/0057 , H04B10/556 , H04L5/08 , H04L27/2085
摘要： Embodiments of a tunable radio frequency (RF) diplexer and methods of duplexing transmission and receive signals are disclosed. In one embodiment, the RF diplexer includes a first hybrid coupler, a second hybrid coupler, and an RF filter circuit, and a phase inversion component. Both the RF filter circuit and the phase inversion component are connected between the first hybrid coupler and the second hybrid coupler. In some embodiments, the phase inversion component is provided by the RF filter circuit, while in other embodiments, the phase inversion component is provided separately. The phase inversion component is configured to provide a differential phase shift. The benefit of introducing the differential phase shift is that it provides increased isolation and broadband isolation between the different frequency bands being diplexed by the RF diplexer.

9. 发明申请

US20150312907A1 METHOD FOR TRANSMITTING FRAME AND METHOD FOR DETECTING TRANSMISSION MODE 有权
标题翻译：用于发送帧的方法和用于检测传输模式的方法
公开(公告)号：US20150312907A1
公开(公告)日：2015-10-29
申请号：US14691307
申请日：2015-04-20
申请人： NEWRACOM, INC.
发明人： ILGU LEE , Jeongchul SHIN , Kyeongpyo KIM , Jongee OH , Dae Kyun LEE
IPC分类号： H04W72/04 , H04L27/20 , H04W84/12
CPC分类号： H04L27/2085 , H04L5/0053 , H04L27/206 , H04L27/2613
摘要： In a WLAN, a device generates a short training field and a long training field following the short training field. The device generates a first signal field following the long training field, and the first signal field includes a mode field for indicating a transmission mode of a frame to be transmitted and a check bit for protecting at least the mode field. The device transmits the frame including the short training field, the long training field, and the first signal field.
摘要翻译：在WLAN中，设备在短训练场之后产生短训练场和长训练场。该装置在长训练场之后产生第一信号场，第一信号场包括用于指示要发送的帧的发送模式的模式字段和用于至少保护模式字段的校验位。设备发送包括短训练场，长训练场和第一信号场的帧。

10. 发明申请

US20150117280A1 BROADBAND ISOLATION LOW-LOSS ISM/MB-HB TUNABLE DIPLEXER 有权
标题翻译：宽带隔离低损耗ISM / MB-HB可调式DIPLEXER
公开(公告)号：US20150117280A1
公开(公告)日：2015-04-30
申请号：US14523065
申请日：2014-10-24
申请人： RF Micro Devices, Inc.
发明人： Nadim Khlat , Marcus Granger-Jones
IPC分类号： H04L5/08 , H04B1/40
CPC分类号： H04B1/50 , H04B1/0057 , H04B10/556 , H04L5/08 , H04L27/2085
摘要： Embodiments of a tunable radio frequency (RF) diplexer and methods of duplexing transmission and receive signals are disclosed. In one embodiment, the RF diplexer includes a first hybrid coupler, a second hybrid coupler, and an RF filter circuit, and a phase inversion component. Both the RF filter circuit and the phase inversion component are connected between the first hybrid coupler and the second hybrid coupler. In some embodiments, the phase inversion component is provided by the RF filter circuit, while in other embodiments, the phase inversion component is provided separately. The phase inversion component is configured to provide a differential phase shift. The benefit of introducing the differential phase shift is that it provides increased isolation and broadband isolation between the different frequency bands being diplexed by the RF diplexer.
摘要翻译：公开了可调谐射频（RF）双工器的实施例和双工传输和接收信号的方法。在一个实施例中，RF双工器包括第一混合耦合器，第二混合耦合器和RF滤波器电路以及相位转换部件。 RF滤波器电路和相位反转分量都连接在第一混合耦合器和第二混合耦合器之间。在一些实施例中，相位反转分量由RF滤波器电路提供，而在其它实施例中，分相提供相位反转分量。相位分量被配置为提供差分相移。引入差分相移的好处是它提供了由RF双工器双工的不同频带之间增加的隔离和宽带隔离。

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