专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP2945296A4 SPECTRUM SPREAD COMMUNICATION APPARATUS 有权
标题翻译：和一个流浪SPECTRUM通信设备
公开(公告)号：EP2945296A4
公开(公告)日：2016-08-17
申请号：EP13870585
申请日：2013-11-26
申请人： MURATA MANUFACTURING CO
发明人： YASUTAKE MAKOTO , YUASA ATSUYUKI
IPC分类号： H04L27/20 , H04B1/02 , H04B1/69 , H04B1/707 , H04L27/00
CPC分类号： H04B1/69 , H04B1/02 , H04B1/707 , H04L27/20 , H04L27/2035 , H04L2027/0018 , H04L2027/0051 , H04L2027/0083
摘要： A microprocessor (2) includes a memory (3), an input/output port (4) and a switch controller (6). Transmission data (D), a spread code (SC) and an inverted code (ISC) are stored in the memory (3). The switch controller (6) generates a spread spectrum signal (SS) by calling up either of the spread code (SC) or the inverted code (ISC) in accordance with a bit of the transmission data (D). A switch (5) connected to the input/output port (4) is switched on and off on the basis of the spread spectrum signal (SS). In addition, an antenna (7) is connected to the input/output port (4) via a coupler (8). An oscillation circuit (9) is formed of a reference oscillator (10) and a BPF (11) and inputs a harmonic of a reference signal (CLK) to the coupler (8) as a carrier wave (LO).

2. 发明公开

EP2106082A3 Method and system for chip-to-chip communications using frequency shifts 审中-公开
标题翻译：方法和系统，用于通过频率偏移芯片到芯片的通信
公开(公告)号：EP2106082A3
公开(公告)日：2010-10-27
申请号：EP09004460.3
申请日：2009-03-27
申请人： Broadcom Corporation
发明人： Ahmadreza, Rofougaran
IPC分类号： H04L27/10 , H04L25/20 , H04L27/00 , H04L27/16
CPC分类号： H04L27/16 , H04B7/155 , H04L25/20 , H04L27/0014 , H04L2027/0083
摘要： A method and system for chip-to-chip communications includes obtaining modulation control information and demodulation control information in a chip comprising one or more receivers and one or more transmitters. One or more modulation frequencies is adjusted and utilized to generate transmit signals by the one or more transmitters based on the modulation control information. One or more demodulation frequencies is adjusted and utilized to generate intermediate frequency signals by the one or more receivers based on demodulation control information. The modulation control information and the demodulation control information may be received via a communication device comprising said chip.

3. 发明公开

EP3057276A4 WIRELESS BASE STATION, USER TERMINAL, AND WIRELESS COMMUNICATION METHOD 审中-公开
标题翻译： DRAHTLOSE BASISSTATION，BENUTZERENDGERÄTUND DRAHTLOSKOMMUNIKATIONSVERFAHREN
公开(公告)号：EP3057276A4
公开(公告)日：2017-06-07
申请号：EP14851644
申请日：2014-10-08
申请人： NTT DOCOMO INC
发明人： SHEN JIYUN , SUYAMA SATOSHI , OKUMURA YUKIHIKO
IPC分类号： H04L27/00 , H04B1/40 , H04J99/00 , H04W16/32 , H04W56/00
CPC分类号： H04L27/0014 , H04L2027/0055 , H04L2027/0065 , H04L2027/0083 , H04W16/32
摘要： To actualize frequency synchronization with each of radio communication systems while suppressing increase in circuit scale of a user terminal in an environment in which the user terminal concurrently communicates with a plurality of radio communication systems with different frequencies, a radio base station of the present invention is a radio base station for forming a narrow-area cell to communicate with a user terminal in a radio communication system where the narrow-area cell is provided inside a wide-area cell, and has a carrier frequency synthesizer that generates a carrier frequency of the narrow-area cell based on a wide-area radio signal transmitted from a radio base station for forming the wide-area cell, and a sampling frequency synthesizer that generates a sampling frequency of a baseband signal of the narrow-area cell based on the wide-area radio signal.
摘要翻译：为了在用户终端同时与具有不同频率的多个无线电通信系统通信的环境中抑制用户终端的电路规模增加的同时实现与每个无线电通信系统的频率同步，本发明的无线电基站是无线基站，在无线通信系统中形成窄区域小区以与用户终端进行通信，其中，所述窄区域小区设置在广域小区内;以及载波频率合成器，产生所述窄区域小区的载波频率基于从无线电基站发送的广域无线电信号的窄区域小区，以形成广域小区;以及采样频率合成器，基于宽带信号生成窄区域小区的基带信号的采样频率地区无线电信号。

4. 发明公开

EP1269706A2 METHOD TO COMPENSATE FOR PHASE ERRORS IN MULTI-CARRIER SIGNALS 有权
标题翻译：法相位误差在多载波信号补偿
公开(公告)号：EP1269706A2
公开(公告)日：2003-01-02
申请号：EP01925162.8
申请日：2001-04-04
申请人： Broadcom Corporation
发明人： JOSHI, Robindra, B. , PUTNAM, Jeffrey, S. , LIN, Thuji, S. , YANG, Paul, T.
IPC分类号： H04L27/26
CPC分类号： H04L27/152 , H04L27/2602 , H04L27/261 , H04L27/2657 , H04L27/2675 , H04L2027/0028 , H04L2027/0055 , H04L2027/0067 , H04L2027/0069 , H04L2027/0083
摘要： A method of compensating for carrier frequency and phase errors of a received multicarrier modulated signal. The received multi-carrier signal including modulated carriers for transmitting known data and unmodulated carriers for error correction, comprising, time domain down converting the received multi-carrier signal to base-band to provide a down-converted signal, the down-converted signal including a plurality of modulated carriers for transmitting known data and unmodulated carriers for error correction. Sampling an unmodulated carrier of the down-converted signal to provide received data samples. Providing a reference signal derived from the unmodulated carrier of the down-converted signal. And, estimating phase errors from a phase difference between the unmodulated carrier and the reference signal derived from the unmodulated carrier of the down-converted signal to provide a plurality of received sample phase error estimates for each modulated carrier.

5. 发明授权

EP2583424B1 METHOD FOR PHASE AND OSCILLATOR FREQUENCY ESTIMATION 有权
标题翻译：法测量的形态及频率振荡器
公开(公告)号：EP2583424B1
公开(公告)日：2014-11-12
申请号：EP11838996.4
申请日：2011-08-19
申请人： Huawei Technologies Co., Ltd.
发明人： Hauske, Fabian Nikolaus , Qi, Juan
IPC分类号： H04L27/22 , H04B7/26 , H04L27/227 , H04L27/26 , H04W56/00 , H04L27/00
CPC分类号： H04W56/0035 , H04L27/227 , H04L27/2657 , H04L27/2684 , H04L2027/0016 , H04L2027/0028 , H04L2027/0083

6. 发明公开

EP2583424A1 METHOD FOR PHASE AND OSCILLATOR FREQUENCY ESTIMATION 有权
标题翻译：法测量的形态及频率振荡器
公开(公告)号：EP2583424A1
公开(公告)日：2013-04-24
申请号：EP11838996.4
申请日：2011-08-19
申请人： Huawei Technologies Co., Ltd.
发明人： Hauske, Fabian Nikolaus , Qi, Juan
IPC分类号： H04L27/22
CPC分类号： H04W56/0035 , H04L27/227 , H04L27/2657 , H04L27/2684 , H04L2027/0016 , H04L2027/0028 , H04L2027/0083
摘要： Method for phase and oscillator frequency estimation and receiver with phase and oscillator frequency estimators The invention relates to a method (100) for estimating a phase of a phase modulated signal having an inphase component and a quadrature component, the method comprising: determining (101) the inphase component of the phase modulated signal; determining (103) a quadrature component of the phase modulated signal; determining (105) a difference of absolute values of the inphase component and the quadrature component to obtain a difference component; determining (107) a sign of the inphase component to obtain an inphase sign; determining (109) a sign of the quadrature component to obtain a quadrature sign; and adjusting (111) a sign of the difference component upon the basis of the inphase sign and the quadrature sign to obtain the phase estimate.

7. 发明授权

EP1269706B1 METHOD TO COMPENSATE FOR PHASE ERRORS IN MULTI-CARRIER SIGNALS 有权
标题翻译：法相位误差在多载波信号补偿
公开(公告)号：EP1269706B1
公开(公告)日：2006-11-02
申请号：EP01925162.8
申请日：2001-04-04
申请人： Broadcom Corporation
发明人： JOSHI, Robindra, B. , PUTNAM, Jeffrey, S. , LIN, Thuji, S. , YANG, Paul, T.
IPC分类号： H04L27/26
CPC分类号： H04L27/152 , H04L27/2602 , H04L27/261 , H04L27/2657 , H04L27/2675 , H04L2027/0028 , H04L2027/0055 , H04L2027/0067 , H04L2027/0069 , H04L2027/0083
摘要： A method of compensating for carrier frequency and phase errors of a received multicarrier modulated signal. The received multi-carrier signal including modulated carriers for transmitting known data and unmodulated carriers for error correction, comprising, time domain down converting the received multi-carrier signal to base-band to provide a down-converted signal, the down-converted signal including a plurality of modulated carriers for transmitting known data and unmodulated carriers for error correction. Sampling an unmodulated carrier of the down-converted signal to provide received data samples. Providing a reference signal derived from the unmodulated carrier of the down-converted signal. And, estimating phase errors from a phase difference between the unmodulated carrier and the reference signal derived from the unmodulated carrier of the down-converted signal to provide a plurality of received sample phase error estimates for each modulated carrier.

8. 发明授权

EP3057276B1 RADIO BASE STATION, USER TERMINAL, AND RADIO COMMUNICATION METHOD 有权
公开(公告)号：EP3057276B1
公开(公告)日：2018-10-03
申请号：EP14851644.6
申请日：2014-10-08
申请人： NTT DOCOMO, INC.
发明人： SHEN, Jiyun , SUYAMA, Satoshi , OKUMURA, Yukihiko
IPC分类号： H04L27/00 , H04B1/40 , H04J99/00 , H04W16/32 , H04W56/00
CPC分类号： H04L27/0014 , H04L2027/0055 , H04L2027/0065 , H04L2027/0083 , H04W16/32
摘要： To actualize frequency synchronization with each of radio communication systems while suppressing increase in circuit scale of a user terminal in an environment in which the user terminal concurrently communicates with a plurality of radio communication systems with different frequencies, a radio base station of the present invention is a radio base station for forming a narrow-area cell to communicate with a user terminal in a radio communication system where the narrow-area cell is provided inside a wide-area cell, and has a carrier frequency synthesizer that generates a carrier frequency of the narrow-area cell based on a wide-area radio signal transmitted from a radio base station for forming the wide-area cell, and a sampling frequency synthesizer that generates a sampling frequency of a baseband signal of the narrow-area cell based on the wide-area radio signal.

9. 发明授权

EP2720064B1 Système de synchronisation d'un dispositif de pointage satellitaire. 有权转让
标题翻译：卫星定位设备的同步系统。
公开(公告)号：EP2720064B1
公开(公告)日：2018-04-04
申请号：EP13188241.7
申请日：2013-10-11
申请人： THALES
发明人： Touret, Marc
IPC分类号： G01S1/22 , H04B7/185 , H04B7/212 , H04L27/26 , H04W56/00
CPC分类号： H04B7/14 , G01S1/22 , H04B7/18517 , H04L7/00 , H04L2027/0083

10. 发明公开

EP2945296A1 SPECTRUM SPREAD COMMUNICATION APPARATUS 有权
标题翻译： KOMMUNIKATIONSVORRICHTUNG MIT EINEM STREUSPEKTRUM
公开(公告)号：EP2945296A1
公开(公告)日：2015-11-18
申请号：EP13870585.0
申请日：2013-11-26
申请人： Murata Manufacturing Co., Ltd.
发明人： YASUTAKE Makoto , YUASA Atsuyuki
IPC分类号： H04B1/707 , H04L27/20
CPC分类号： H04B1/69 , H04B1/02 , H04B1/707 , H04L27/20 , H04L27/2035 , H04L2027/0018 , H04L2027/0051 , H04L2027/0083
摘要： A microprocessor (2) includes a memory (3), an input/output port (4) and a switch controller (6). Transmission data (D), a spread code (SC) and an inverted code (ISC) are stored in the memory (3). The switch controller (6) generates a spread spectrum signal (SS) by calling up either of the spread code (SC) or the inverted code (ISC) in accordance with a bit of the transmission data (D). A switch (5) connected to the input/output port (4) is switched on and off on the basis of the spread spectrum signal (SS). In addition, an antenna (7) is connected to the input/output port (4) via a coupler (8). An oscillation circuit (9) is formed of a reference oscillator (10) and a BPF (11) and inputs a harmonic of a reference signal (CLK) to the coupler (8) as a carrier wave (LO).
摘要翻译：微处理器（2）包括存储器（3），输入/输出端口（4）和开关控制器（6）。发送数据（D），扩展码（SC）和反转码（ISC）存储在存储器（3）中。开关控制器（6）通过根据传输数据（D）的比特调用扩展码（SC）或反相码（ISC）中的任何一个来生成扩频信号（SS）。连接到输入/输出端口（4）的开关（5）根据扩频信号（SS）被接通和断开。此外，天线（7）经由耦合器（8）连接到输入/输出端口（4）。振荡电路（9）由参考振荡器（10）和BPF（11）形成，并将参考信号（CLK）的谐波作为载波（LO）输入到耦合器（8）。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式