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. 发明授权

EP2600544B1 Technique for crosstalk reduction 有权转让
标题翻译：技术降低串扰
公开(公告)号：EP2600544B1
公开(公告)日：2014-10-15
申请号：EP11009463.8
申请日：2011-11-30
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Mu, Fenghao , Sundström, Lars
IPC分类号： H04B15/04 , H03L7/00
CPC分类号： H04L25/08 , H04B3/32 , H04B15/04
摘要： A technique for cancelling or reducing crosstalk signals between controlled oscillators in an integrated circuit is provided. The technique involves an arrangement adapted to reduce a crosstalk signal generated by a first controlled oscillator to a second oscillator both comprised in the integrated circuit, wherein both controlled oscillators are configured to output a respective clock signal. The arrangement comprises a detector adapted to detect the crosstalk signal generated by the first controlled oscillator to the second controlled oscillator, a crosstalk cancellation circuit adapted to generate a cancellation signal having an amplitude substantially the same as that of the crosstalk signal and a phase substantially opposite to that of the crosstalk signal, and a cancellation signal injector adapted to introduce the cancellation signal into the second controlled oscillator.

2. 发明授权

EP2472727B1 Digital baseband circuit 有权
标题翻译：数字基带电路
公开(公告)号：EP2472727B1
公开(公告)日：2013-07-24
申请号：EP12161599.1
申请日：2008-03-31
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Olsson, Thomas , Sundström, Lars
IPC分类号： H04B1/00 , G06F9/48 , H04B1/40
CPC分类号： H04L25/02 , G06F9/4881 , H04B1/40

3. 发明公开

EP2413524A1 Technique and test signal for determining signal path properties 有权
标题翻译： Verfahren und Vorrichtung zur Bestimmung von Signalpfadeigenschaften
公开(公告)号：EP2413524A1
公开(公告)日：2012-02-01
申请号：EP10007861.7
申请日：2010-07-28
申请人： Telefonaktiebolaget L M Ericsson (PUBL)
发明人： Sundström, Lars , Svensson, Jim , Wilhelmson, Leif
IPC分类号： H04B17/00
CPC分类号： H04B17/21 , H04B3/46 , H04B17/10 , H04B17/20 , H04B17/309 , H04L1/244 , H04L27/2647 , H04L27/3863
摘要： A test signal for determining a frequency-dependent or any other property of a receiver path is proposed. The test signal comprises, in a time domain representation, a sequence of discrete states that may be periodically repeated and that gives rise to a plurality of discrete tones in a frequency domain representation of the test signal. The test signal can be utilized for determining a frequency-dependent imbalance (e.g., an IQ imbalance) between different signal branches of a receiver or transmitter.
摘要翻译：提出了用于确定接收机路径的频率依赖性或任何其他属性的测试信号。测试信号在时域表示中包括可以周期性重复的离散状态序列，并且在测试信号的频域表示中产生多个离散音调。测试信号可用于确定接收器或发射器的不同信号分支之间的频率相关不平衡（例如，IQ不平衡）。

4. 发明授权

EP2755341B1 Timing for radio reconfiguration 有权
标题翻译：无线电重新配置的时机
公开(公告)号：EP2755341B1
公开(公告)日：2016-01-06
申请号：EP13150996.0
申请日：2013-01-11
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Tillman, Fredrik , Lindoff, Bengt , Mattisson, Sven , Nilsson, Johan , Sundström, Lars
IPC分类号： H04L1/00 , H04W52/02
CPC分类号： H04L1/0001 , H04L1/0027 , H04W52/0245 , H04W72/042 , Y02D70/1222 , Y02D70/1242 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/144 , Y02D70/162 , Y02D70/21
摘要： A mobile communications terminal comprising a radio frequency interface configured to operate at least at a first configuration, and a controller, wherein said controller is configured to determine that a reconfiguration of the radio frequency interface is to be performed, determine a timing of the reconfiguration and reconfigure said radio frequency interface to operate at a second configuration at the determined timing, wherein said controller is configured to determine said timing based on the type of reconfiguration to be made.
摘要翻译：一种移动通信终端，包括被配置为至少在第一配置下操作的射频接口和控制器，其中所述控制器被配置为确定要执行射频接口的重新配置，确定重新配置的定时，重新配置所述射频接口以在所确定的定时在第二配置下操作，其中所述控制器被配置为基于要进行的重新配置的类型来确定所述定时。

5. 发明公开

EP2685690A1 Technique for generating a radio frequency signal based on an offset compensation signal 失效
标题翻译： Technik zur Erzeugung eines Funkfrequenzsignals auf der Basis eines Versatzkompensationssignals
公开(公告)号：EP2685690A1
公开(公告)日：2014-01-15
申请号：EP12005118.0
申请日：2012-07-11
申请人： Telefonaktiebolaget L M Ericsson (PUBL)
发明人： Mu, Fenghao , Sundström, Lars
IPC分类号： H04L27/26 , H04L27/34 , H04L27/36 , H03C5/00 , H03F1/32
CPC分类号： H04L27/3411 , H03C5/00 , H03F1/3282 , H04L27/2614 , H04L27/361
摘要： A technique for generating a radio frequency signal (302) based on a baseband signal (304) is provided. As to a method aspect of the technique, a baseband signal (304) is modified by adding an offset signal to the baseband signal (304). The offset signal prevents the modified baseband signal (316) from entering a first signal region. An amplitude signal (r) and a phase signal (ϕ) is provided based on the modified baseband signal (316). The phase signal (ϕ) is modulated to a carrier frequency (ω c ). The modulated phase signal (ϕ) is amplified according to the amplitude signal (r) to generate a preliminary radio frequency signal (318). An offset compensation signal (320) is derived from the offset signal (314) and fed into the preliminary radio frequency signal (318). The offset compensation signal (320) essential cancels a frequency component, which corresponds to the offset signal (314), in the radio frequency signal (302).
摘要翻译：提供了一种基于基带信号（304）产生射频信号（302）的技术。对于该技术的方法方面，通过向基带信号（304）添加偏移信号来修改基带信号（304）。偏移信号防止修改的基带信号（316）进入第一信号区域。基于修改的基带信号（316）提供幅度信号（r）和相位信号（Õ）。相位信号（Õ）被调制到载波频率（Éc）。调制相位信号（Õ）根据振幅信号（r）被放大，以产生初步射频信号（318）。偏移补偿信号（320）从偏移信号（314）导出并被馈送到初步射频信号（318）。偏移补偿信号（320）必须抵消与射频信号（302）中的偏移信号（314）对应的频率分量。

6. 发明授权

EP2469740B1 Methods and receiver for positioning of clock related spurious signals 有权
标题翻译：相关的时钟信号中的噪声进行定位的方法和接收器
公开(公告)号：EP2469740B1
公开(公告)日：2013-06-26
申请号：EP10196540.8
申请日：2010-12-22
申请人： Telefonaktiebolaget L M Ericsson (Publ)
发明人： Lindoff, Bengt , Sundström, Lars , Wilhelmsson, Leif
IPC分类号： H04B15/06 , H04L27/26
CPC分类号： H04L27/2649 , H04B15/06 , H04L27/2657 , H04L2027/0016 , H04L2027/0032 , H04L2027/0065

7. 发明公开

EP2487787A1 Frequency translation filter apparatus and method 审中-公开
标题翻译：不经意的人
公开(公告)号：EP2487787A1
公开(公告)日：2012-08-15
申请号：EP11154194.2
申请日：2011-02-11
申请人： Telefonaktiebolaget L M Ericsson (PUBL)
发明人： Sundström, Lars , Mattisson, Sven
IPC分类号： H03D7/16
CPC分类号： H03D7/16 , H03D7/166 , H03H19/002 , H03H19/008
摘要： A frequency translation filter 500 is configured to receive a radio frequency (RF) signal 501 comprising first and second non-contiguous carriers or non-contiguous frequency ranges. The frequency translation filter comprises a mixer 503 configured to mix the RF signal 501 received on a first input with a local oscillator (LO) signal 505 received on a second input. A filter 507 has band-pass characteristics which, when frequency translated using the mixer 503, contain first and second pass-bands corresponding to the first and second non-contiguous carriers or non-contiguous frequency ranges. The first and second pass-bands are centered about the local oscillator frequency.
摘要翻译：频率转换滤波器500被配置为接收包括第一和第二非连续载波或非连续频率范围的射频（RF）信号501。频率转换滤波器包括：混频器503，被配置为混合在第一输入端接收的RF信号501与在第二输入端接收的本地振荡器（LO）信号505。滤波器507具有带通特性，当使用混频器503进行频率转换时，其包含对应于第一和第二非连续载波或非连续频率范围的第一和第二通带。第一和第二通带以本地振荡器频率为中心。

8. 发明授权

EP2141818B1 Signal processing device and method 失效
标题翻译：信号处理设备和方法
公开(公告)号：EP2141818B1
公开(公告)日：2011-12-28
申请号：EP08159677.7
申请日：2008-07-04
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Sundström, Lars , Oredsson, Filip , Pettersson, Tony
IPC分类号： H04B1/40
CPC分类号： H04B1/28 , H04B1/406

9. 发明公开

EP2717480A1 Radio transceiver having frequency synthesizer 有权
标题翻译： Funkgerätmit Normalfrequenz发电机
公开(公告)号：EP2717480A1
公开(公告)日：2014-04-09
申请号：EP12187418.4
申请日：2012-10-05
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Sundström, Lars , Wallén, Anders , Sjöland, Henrik
IPC分类号： H04B1/00
CPC分类号： H04L7/0331 , H04B1/0067 , H04B1/401 , H04B1/406 , H04W88/06
摘要： A radio transceiver (10) is disclosed. It comprises a first transceiver circuit (15) and a second transceiver circuit (20), the latter requiring an LO signal having higher LO frequency than the former. It further comprises a frequency synthesizer (35) comprising a first clock-signal generator (45) adapted to generate the LO signal for the first transceiver circuit (15) based on a first reference oscillation signal and a second clock-signal generator (65) adapted to generate the LO signal for the second transceiver circuit (20) based on a second reference oscillation signal, which is or is derived from the LO signal for the first transceiver circuit (15). A radio communication apparatus (1) comprising the radio transceiver (10) is also disclosed.
摘要翻译：公开了一种无线电收发机（10）。它包括第一收发器电路（15）和第二收发器电路（20），后者需要具有比前者更高的LO频率的LO信号。它还包括频率合成器（35），其包括适于基于第一参考振荡信号和第二时钟信号发生器（65）产生用于第一收发器电路（15）的LO信号的第一时钟信号发生器（45）适于基于第二参考振荡信号产生用于第二收发器电路（20）的LO信号，该第二参考振荡信号是或从第一收发器电路（15）的LO信号导出的。还公开了包括无线电收发器（10）的无线电通信装置（1）。

10. 发明公开

EP2654202A1 Harmonic Rejection Mixer Arrangement 有权
标题翻译： Mischer mitOberwellenunterdrückung
公开(公告)号：EP2654202A1
公开(公告)日：2013-10-23
申请号：EP12164771.3
申请日：2012-04-19
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Anderson, Martin , Sundström, Lars
IPC分类号： H03D7/16 , H03D7/14
摘要： It is disclosed a mixer arrangement for complex signal mixing comprising a first harmonic rejection mixer, and a second harmonic rejection mixer. Each of the harmonic rejection mixers comprises at least one mixer unit cell wherein each mixer unit cell comprises a differential input, transconductance elements corresponding to the differential input, and a switching network arranged to switch signals from the transconductance elements to a differential output, and the first and the second harmonic rejection mixers have mutual quadrature phase relationship. The first and the second rejection mixer share a first mixer unit cell comprising an input for receiving a signal to be mixed, an input for receiving control signals derived from a local oscillator signal, and one output for each of the first and second harmonic rejection mixers. A radio circuit comprising such a mixer arrangement and a communication apparatus comprising such a radio circuit are also disclosed.
摘要翻译：公开了一种用于复杂信号混合的混频器装置，包括一个谐波抑制混频器和一个二次谐波抑制混频器。每个谐波抑制混频器包括至少一个混频器单元，其中每个混频器单元包括差分输入，对应于差分输入的跨导元件和布置成将来自跨导元件的信号切换到差分输出的开关网络，以及第一和第二谐波抑制混频器具有相互正交相位关系。第一和第二拒绝混频器共享第一混频器单元，其包括用于接收待混合信号的输入端，用于接收从本地振荡器信号导出的控制信号的输入端和用于第一和第二谐波抑制混频器。还公开了包括这种混频器装置的无线电电路和包括这种无线电电路的通信装置。

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