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1. 发明授权

US09692623B2 Receiver, transmitter, method for determining a value encoded in a PWM signal, and method for transmitting a value encoded in a PWM signal 有权
公开(公告)号：US09692623B2
公开(公告)日：2017-06-27
申请号：US14933283
申请日：2015-11-05
申请人： Infineon Technologies AG
发明人： Dirk Hammerschmidt
IPC分类号： H04L25/493 , H03M5/08 , H03K9/10 , H03M1/82 , H04L25/49 , H03K7/08 , H04L25/03
CPC分类号： H04L25/4902 , H03K7/08 , H03K9/10 , H03M1/822 , H03M5/08 , H04L25/4917 , H04L25/4927 , H04L25/493 , H04L2025/03363
摘要： A receiver includes a receiver circuit to receive a pulse width modulated signal, which assumes a first signal level, a second signal level and an intermediate signal level between the first signal level and the second signal level. The receiver further includes a quantization circuit to determine a value encoded in the signal based on an intermediate time period between a first transition and an intermediate transition and based on a main time period between the first transition and a second transition. The first transition comprises the first signal level, wherein the intermediate transition includes the intermediate signal level. The second transition includes the second signal level.

2. 发明授权

US09634736B2 Periodic bandwidth widening for inductive coupled communications 有权
公开(公告)号：US09634736B2
公开(公告)日：2017-04-25
申请号：US15199611
申请日：2016-06-30
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Subhashish Mukherjee , Anoop Bhat , Kumar Anurag Shrivastava
IPC分类号： H03D5/00 , H03K7/10 , H03K9/10 , H03C5/00 , H04B5/00 , H04L27/04
CPC分类号： H04B5/0087 , H04B5/0031 , H04L27/04
摘要： In described examples, a method of inductive coupled communications includes providing a first resonant tank (first tank) and a second resonant tank (second tank) tuned to essentially the same resonant frequency, each having antenna coils and switches positioned for changing a Q and a bandwidth of their tank. The antenna coils are separated by a distance that provides near-field communications. The first tank is driven to for generating induced oscillations to transmit a predetermined number of carrier frequency cycles providing data. After the predetermined number of cycles, a switch is activated for widening the bandwidth of the first tank. Responsive to the oscillations in the first tank, the second tank begins induced oscillations. Upon detecting a bit associated with the induced oscillations, a switch is activated for widening the bandwidth of the second tank and a receiver circuit receiving an output of the second tank is reset.

3. 发明授权

US08724730B2 Method and arrangement in a wireless communication network 有权
标题翻译：无线通信网络中的方法和布置
公开(公告)号：US08724730B2
公开(公告)日：2014-05-13
申请号：US12866686
申请日：2009-02-09
申请人： Marten Sundberg , Hakan Axelsson , Stefan Eriksson , Anders Malm
发明人： Marten Sundberg , Hakan Axelsson , Stefan Eriksson , Anders Malm
IPC分类号： H03C5/00 , H03D5/00 , H03K7/10 , H03K9/10
CPC分类号： H04W72/04 , H04L1/0072 , H04L1/008
摘要： Method, arrangement and computer program product in a base station for transmitting two USF values and two data blocks to a terminal. The base station and the terminal are comprised within a wireless communication network. The two USF values are to be sent across the first data block and the second data block. The first data block and first parts of the two USF values are modulated with a first modulation technique and the second data block and second parts of the two USF values are modulated with a second modulation technique. The modulated data blocks and USF parts are transmitted to the terminal. Further, a method, an arrangement and a computer program product in a terminal for receiving USF values and data blocks from a base station are described. In addition, a method, an arrangement and a computer program product in a control node are described.
摘要翻译：用于向终端发送两个USF值和两个数据块的基站中的方法，布置和计算机程序产品。基站和终端包括在无线通信网络内。两个USF值将被发送到第一个数据块和第二个数据块。第一数据块和两个USF值的第一部分用第一调制技术进行调制，第二数据块和两个USF值的第二部分用第二调制技术进行调制。被调制的数据块和USF部分被发送到终端。此外，描述了用于从基站接收USF值和数据块的终端中的方法，装置和计算机程序产品。另外，描述了控制节点中的方法，装置和计算机程序产品。

4. 发明授权

US08385445B2 Method for processing digital signals, and transmission/reception system implementing said method 有权
标题翻译：数字信号处理方法，实现上述方法的发送/接收系统
公开(公告)号：US08385445B2
公开(公告)日：2013-02-26
申请号：US12999274
申请日：2009-06-08
申请人： Giovanni Vitale , Vittoria Mignone
发明人： Giovanni Vitale , Vittoria Mignone
IPC分类号： H04L5/12 , H03K9/10
CPC分类号： H04L27/34 , H03M13/11 , H03M13/1165 , H03M13/251 , H03M13/255 , H03M13/2707 , H03M13/356 , H04L1/0057 , H04L1/0071
摘要： The present invention relates to a method for processing digital signals and to a transmission/reception system implementing said method; the present invention is based on the use of LDPC codes, in particular the LDPC code of the DVB-S2 standard, in combination with a QAM modulation, in particular the 1024QAM and 4096QAM modulations; in transmission, a bit permutation (Demux) is carried out prior to the QAM constellation mapping function; in reception, the bit permutation is carried out after the QAM constellation demapping function.
摘要翻译：本发明涉及一种处理数字信号的方法和实现所述方法的发送/接收系统; 本发明基于LDPC码的使用，特别是DVB-S2标准的LDPC码与QAM调制，特别是1024QAM和4096QAM调制的组合; 在传输中，在QAM星座映射函数之前执行位置换（Demux）; 在接收中，在QAM星座解映射功能之后进行比特置换。

5. 发明授权

US3777268A Degradation detection in a pcm system 失效
标题翻译： PCM系统中的降解检测
公开(公告)号：US3777268A
公开(公告)日：1973-12-04
申请号：US3777268D
申请日：1971-09-27
申请人： GEN ELECTRIC CO LTD
发明人： CLEOBURY D , WILSON B
IPC分类号： H04L1/20 , H04L27/22 , H03K9/10 , H03K13/32
CPC分类号： H04L1/20 , H04L27/22
摘要： An arrangement for detecting the degradation of a received PCM signal before it becomes bad enough to cause serious errors. Ancillary threshold detectors operate at levels on either side of the basic threshold. A falling signal level or rising noise level causes a received pulse to fall in the range between the ancillary levels, producing a warning signal to indicate a degraded signal. As described, the warning signals are integrated over a period of time to produce a time average. The arrangement is useful in repeaters of a radio relay system.
摘要翻译：用于在接收到的PCM信号变得不足以导致严重错误之前检测接收到的PCM信号的劣化的装置。辅助阈值检测器以基本阈值两侧的电平工作。下降的信号电平或上升的噪声电平导致接收的脉冲落在辅助电平之间的范围内，产生警告信号以指示劣化的信号。如上所述，警告信号在一段时间内被积分以产生时间平均。该装置在无线电中继系统的中继器中是有用的。

6. 发明授权

US3510780A Two-state communication devices having combined clock and information signals 失效
标题翻译：具有组合时钟和信息信号的两状态通信设备
公开(公告)号：US3510780A
公开(公告)日：1970-05-05
申请号：US3510780D
申请日：1966-09-12
申请人： MOTOROLA INC
发明人： BUEHRLE WILLIAM B
IPC分类号： H04L25/49 , H03K9/10
CPC分类号： H04L25/4902

7. 发明授权

US3480881A Circuitry for simultaneously modulating and amplifying a carrier signal 失效
标题翻译：电路同时调制和放大载波信号
公开(公告)号：US3480881A
公开(公告)日：1969-11-25
申请号：US3480881D
申请日：1966-08-19
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： BOYKIN JOHN R
IPC分类号： H03C1/36 , H03F3/21 , H03F3/217 , H03M1/00 , H03K9/10
CPC分类号： H03F3/2175 , H03C1/36 , H03F3/211 , H03M1/00 , H03M1/22

8. 发明授权

US3437833A Signal pulse shaper 失效
标题翻译：信号脉冲形状
公开(公告)号：US3437833A
公开(公告)日：1969-04-08
申请号：US36819564
申请日：1964-05-18
申请人： GEN ELECTRIC
发明人： RAZAITIS LEO C , MENG JOHN D , NOWELL JOHN R
IPC分类号： G11B20/10 , H03K5/01 , H03K5/1532 , H03K5/22 , H03K9/10 , H03K5/20
CPC分类号： H03K5/22 , G11B20/10009 , H03K5/01 , H03K5/1532 , H03K9/10

9. 发明授权

US09385790B1 Periodic bandwidth widening for inductive coupled communications 有权
标题翻译：感性耦合通信的周期带宽拓宽
公开(公告)号：US09385790B1
公开(公告)日：2016-07-05
申请号：US14587817
申请日：2014-12-31
申请人： Texas Instruments Incorporated
发明人： Subhashish Mukherjee , Anoop Bhat , Kumar Anurag Shrivastava
IPC分类号： H03D5/00 , H03K7/10 , H03K9/10 , H03C5/00 , H04B5/00 , H04L27/04
CPC分类号： H04B5/0087 , H04B5/0031 , H04L27/04
摘要： A method of inductive coupled communications includes providing a first resonant tank (first tank) and a second resonant tank (second tank) tuned to essentially the same resonant frequency, each having antenna coils and switches positioned for changing a Q and a bandwidth of their tank. The antenna coils are separated by a distance that provides near-field communications. The first tank is driven to for generating induced oscillations to transmit a predetermined number of carrier frequency cycles providing data. After the predetermined number of cycles, a switch is activated for widening the bandwidth of the first tank. Responsive to the oscillations in the first tank, the second tank begins induced oscillations. Upon detecting a bit associated with the induced oscillations, a switch is activated for widening the bandwidth of the second tank and a receiver circuit receiving an output of the second tank is reset.
摘要翻译：电感耦合通信的方法包括提供调谐到基本上相同的谐振频率的第一谐振回路（第一储罐）和第二谐振回路（第二储罐），每个谐振回路具有天线线圈和开关，用于改变其罐的Q和带宽。天线线圈分开一个提供近场通信的距离。驱动第一坦克用于产生感应振荡以传送提供数据的预定数量的载波频率周期。在预定数量的循环之后，启动开关以扩大第一箱的带宽。响应于第一个罐中的振荡，第二个罐开始诱发振荡。在检测到与感应振荡相关联的位时，启动开关以加宽第二箱的带宽，并且接收接收第二箱的输出的接收器电路被复位。

10. 发明授权

US08199847B2 Method and apparatus for providing higher order modulation that is backwards compatible with quaternary phase shift keying(QPSK) or offset quaternary phase shift keying (OQPSK) 有权
标题翻译：用于提供与四相相移键控（QPSK）或偏移四相相移键控（OQPSK）向后兼容的更高阶调制的方法和装置，
公开(公告)号：US08199847B2
公开(公告)日：2012-06-12
申请号：US11879607
申请日：2007-07-18
申请人： Lin-Nan Lee , Feng-Wen Sun , Mustafa Eroz , Yimin Jiang
发明人： Lin-Nan Lee , Feng-Wen Sun , Mustafa Eroz , Yimin Jiang
IPC分类号： H03C5/00 , H03D5/00 , H03K7/10 , H03K9/10
CPC分类号： H04L27/3488 , H04L27/183
摘要： A method and apparatus for providing an asymmetrical backwards compatible communications signal that is capable of being decoded by QPSK and OQPSK receivers as well as PSK and QAM receivers is provided. The invention comprises a timing error accumulator coupled to a first bit stream. The first bit stream includes content that is common to the QPSK/OQPSK receiver and to the PSK/QAM receiver. A phase error accumulator is coupled to a second bit stream and adjusts the phase of symbols in the second bit stream. A phase and timing error compensator is coupled to the phase error accumulator and the timing error accumulator and adjusts the first and second bit streams received from the phase error accumulator and the timing error accumulator in order to reduce timing and phase errors. A higher order modulator coupled to the phase- and timing error compensator is also provided. The higher order modulator processes the first and second bit streams to provide the asymmetrical backwards compatible signal.
摘要翻译：提供一种提供能够被QPSK和OQPSK接收机以及PSK和QAM接收机解码的不对称向后兼容通信信号的方法和装置。本发明包括耦合到第一位流的定时误差累加器。第一比特流包括对于QPSK / OQPSK接收机和PSK / QAM接收机是共同的内容。相位误差累加器被耦合到第二比特流并且调整第二比特流中的符号的相位。相位和定时误差补偿器耦合到相位误差累加器和定时误差累加器，并调整从相位误差累加器和定时误差累加器接收的第一和第二比特流，以减少定时和相位误差。还提供耦合到相位和定时误差补偿器的较高阶调制器。高阶调制器处理第一和第二比特流以提供不对称的向后兼容信号。

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