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

EP1609249A1 AM RECEIVER AND DEMODULATOR 审中-公开
标题翻译： AM接收机和解调
公开(公告)号：EP1609249A1
公开(公告)日：2005-12-28
申请号：EP04718480.9
申请日：2004-03-08
申请人： Sandbridge Technologies, Inc.
发明人： IANCU, Daniel
IPC分类号： H04B1/28
CPC分类号： H04B1/0021 , H03G3/3036 , H03G3/3052 , H04B1/0003 , H04B1/28
摘要： An amplitude modulation receiver including an antenna (10) for receiving a signal (1) and an input filter (12) connected to the antenna. A variable gain amplifier (16) is connected to the input filter and is responsive to a gain control signal. An A/D converter is connected to the variable gain amplifier and is responsive to a sampling signal and provides a sampled digital signal. A D/A converter (22) receives a demodulated signal and provides an analog output signal. A controller (20) receives and demodulates the sampled digital signal from the A/D converter, generates the gain control signal for the variable gain amplifier, generates the sampling signal for the A/D converter, and provides the demodulated signal to the D/A converter. The demodulation and generation of the gain control signal and the sampling signal are performed in software.

2. 发明授权

EP0597255B1 Empfänger für ein digitales Rundfunksignal, mit digitaler Signalverarbeitung 失效转让
标题翻译：一种接收机，用于与数字信号处理的数字广播信号
公开(公告)号：EP0597255B1
公开(公告)日：1998-01-07
申请号：EP93116295.2
申请日：1993-10-08
申请人： GRUNDIG Aktiengesellschaft
发明人： Reis, Johannes, GRUNDIG E.M.V.
IPC分类号： H04H1/00
CPC分类号： H04H40/18 , H03H17/08 , H04B1/0003 , H04B1/001 , H04B1/0017 , H04B1/0021 , H04B1/0039 , H04B1/26 , H04H20/57 , H04H2201/20

3. 发明公开

EP3419182A1 A METHOD AND APPARATUS FOR USING AN OVER SAMPLING ARCHITECTURE TO ACHIEVE A SOFTWARE DEFINED RADIO FOR NFC INTEGRATED CIRCUITS 有权
公开(公告)号：EP3419182A1
公开(公告)日：2018-12-26
申请号：EP18176429.1
申请日：2018-06-07
申请人： NXP B.V.
发明人： MENDEL, Stefan , MUEHLMANN, Ulrich Andreas , KURZMANN, Dominik
IPC分类号： H04B1/00
CPC分类号： G06K19/0724 , G06K19/07749 , H04B1/0021 , H04B5/0031 , H04B5/0075 , H04W4/80
摘要： Various embodiments relate to a method and apparatus for over sampling a RF carrier signal, the method including receiving, by an ADC, the RF carrier signal, sampling, by the ADC, the RF carrier signal using the selected clock signal which is at least quadruple the RF carrier signal, down sampling, by a RF-DSP, the RF carrier signal by a factor of two to generate I channel data and Q channel data, mixing down, by the RF-DSP, the I channel data and the Q channel data, and outputting, by the RF-DSP, the I channel data and Q channel data to a baseband DSP.

4. 发明公开

EP3261258A1 TUNABLE BANDPASS SIGMA-DELTA MODULATOR 审中-公开
标题翻译：可调带通SIGMA-DELTA调制器
公开(公告)号：EP3261258A1
公开(公告)日：2017-12-27
申请号：EP16305763.1
申请日：2016-06-23
申请人： Université Pierre et Marie Curie , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
发明人： ABOUSHADY, Hassan , BADRAN, Tamer , SAYED, Alhassan
IPC分类号： H03M3/00
CPC分类号： H03M3/402 , H03M3/396 , H03M3/424 , H03M3/43 , H04B1/0014 , H04B1/0021
摘要： A Sigma-Delta (ΣΔ) modulator for converting an analog input signal having a frequency bandwidth around a variable center frequency f 0 to a digital output signal at a sampling frequency f s . The ΣΔ modulator comprises a quantizer (420) for generating the digital output signal and a loop filter for shaping the quantization noise. The loop filter comprises at least one subfilter (430, 410) centered around a frequency f 0 and constant noise shaping coefficients (451, 452, 453). The ΣΔ modulator further comprises a tunable delay element (455), a frequency adjuster (480) for adjusting the sampling frequency f s such that the normalized center frequency f 0 / f s is constant, and a delay adjuster (490) for adjusting the loop delay t d implemented by the quantizer and the tunable delay element (455), such that the normalized loop delay t d / T s falls in a predetermined range [ t min , t max ], where T s = = 1/ f s .
摘要翻译：一个Sigma-Delta（ΣΔ）调制器，用于以采样频率fs将具有围绕可变中心频率f0的频率带宽的模拟输入信号转换为数字输出信号。 ΣΔ调制器包括用于产生数字输出信号的量化器（420）和用于整形量化噪声的环路滤波器。环路滤波器包括以频率f0和恒定噪声整形系数（451,452,453）为中心的至少一个子滤波器（430,410）。 ΣΔ调制器进一步包括可调延迟元件（455），用于调整采样频率fs使得归一化中心频率f0 / fs恒定的频率调整器（480），以及用于调整循环延迟td的延迟调整器（490）由量化器和可调延迟元件（455）实现，使得归一化环路延迟td / Ts落入预定范围[tmin，tmax]中，其中Ts = 1 / fs。

5. 发明授权

EP2571174B1 Low power radio frequency to digital receiver 有权
标题翻译：低功率射频到数字接收器
公开(公告)号：EP2571174B1
公开(公告)日：2017-11-08
申请号：EP12184567.1
申请日：2012-09-14
申请人： The Boeing Company
发明人： Kuan, Yen-Cheng , Xu, Zhiwei
IPC分类号： H04B1/00
CPC分类号： H04B1/0021

6. 发明授权

EP2696507B1 A method for improving signal accuracy of a transmitted or a received signal 有权转让
标题翻译：一种用于改善发射信号或接收信号的信号准确度的方法
公开(公告)号：EP2696507B1
公开(公告)日：2017-10-25
申请号：EP12005740.1
申请日：2012-08-08
申请人： Airbus Defence and Space GmbH
发明人： Floch, Jean-Jacques
IPC分类号： H04B1/04
CPC分类号： H04B1/0475 , H03F1/3241 , H04B1/0021 , H04B2001/0425

7. 发明授权

EP2789105B1 HETERODYNE RECEIVER STRUCTURE, MULTI CHIP MODULE, MULTI INTEGRATED CIRCUIT MODULE, AND METHOD FOR PROCESSING A RADIO FREQUENCY SIGNAL 有权
标题翻译：干扰接收器结构，更多的芯片MODULE多个集成电路MODULE AND METHOD FOR处理的射频信号
公开(公告)号：EP2789105B1
公开(公告)日：2016-04-20
申请号：EP12855394.8
申请日：2012-02-07
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： SAHLMAN, Karl-Gösta , LIEBACK, Tomas
IPC分类号： H04B1/06 , H03D7/18 , H04B1/00 , H03M1/12
CPC分类号： H03D7/18 , H04B1/0021 , H04B1/0046 , H04B1/06

8. 发明公开

EP2951928A1 RECEIVER THAT RECONFIGURES BETWEEN ZERO INTERMEDIATE FREQUENCY AND DIRECT SAMPLING BASED ON CHANNEL CONDITIONS 有权
标题翻译：接收器之间安装空中频和直接扫描重构基于信道条件
公开(公告)号：EP2951928A1
公开(公告)日：2015-12-09
申请号：EP14705637.8
申请日：2014-01-30
申请人： Qualcomm Incorporated
发明人： FERNANDO, Udara C. , GUDEM, Prasad Srinivasa Siva
IPC分类号： H04B1/00
CPC分类号： H04W52/0245 , H04B1/0007 , H04B1/0021 , H04B1/0025 , H04B1/0028 , Y02D70/00 , Y02D70/1262 , Y02D70/40
摘要： A wireless device for receiving wireless signals based on channel conditions is described. The wireless device includes a direct sampling path used when operating in a direct sampling mode. The wireless device also includes a zero intermediate frequency path used when operating in a normal sampling mode. The wireless device further includes a first switch coupling a filter module input to an input of the direct sampling path and an input of the zero intermediate frequency path. The wireless device also includes a second coupling a filter module output to an output of the direct sampling path and an output of the zero intermediate frequency path. The first switch and the second switch are configured to switch between the direct sampling path and the zero intermediate frequency path based on a received signal power.

9. 发明公开

EP3343792A4 DATA TRANSMISSION METHOD, APPARATUS AND ANTENNA ARRAY 有权转让
公开(公告)号：EP3343792A4
公开(公告)日：2018-07-11
申请号：EP16838454
申请日：2016-07-21
申请人： DATANG MOBILE COMMUNICATIONS EQUIPMENT CO LTD
发明人： SUN HUARONG , DUAN TAO , ZOU SULING , SU JINXI , NI HUIJUAN
IPC分类号： H04B7/04 , H04B1/00
CPC分类号： H04B7/04 , H04B1/0021
摘要： Disclosed in the present invention are a data transmission method, an apparatus and an antenna array, in order to realize wide bandwidth data transmission of massive antenna array. The data transmission method comprises: baseband IQ data of multiple CA is grouped via IR data interface module to obtain baseband IQ data of each CA group; for baseband IQ data of each CA group: the baseband IQ data with enhanced data rate of the CA group is up-converted to digital intermediate frequency band by a digital up-conversion module; the digital intermediate frequency signals of the CA group are superposed by a combiner to form a multi-carrier digital intermediate frequency signal; in accordance with the amplitude and phase requirements of each antenna in a group of antenna sharing the multi-carrier digital intermediate frequency signal, the amplitude and phase of the multi-carrier digital intermediate frequency signal are respectively adjusted and transmitted to a digital to analog converter of a corresponding antenna channel; a multi-carrier analog intermediate frequency signal is generated by the digital to analog converter of each antenna channel, and then is transmitted to the corresponding antenna channel.

10. 发明公开

EP2907240A4 PHASE SECTOR BASED RF SIGNAL DECIMATION 审中-公开
标题翻译： AUF PHASENSEKTOR BASIERTE RF-SIGNALDEZIMIERUNG
公开(公告)号：EP2907240A4
公开(公告)日：2017-02-22
申请号：EP13844820
申请日：2013-09-27
申请人： NIENABER DAVID
发明人： NIENABER DAVID
IPC分类号： G01R23/167 , H03D1/00 , H04B1/00 , H04B1/04 , H04B1/06 , H04L1/08 , H04L1/20
CPC分类号： H04L1/206 , G01R23/167 , H03D1/00 , H03D2200/006 , H03D2200/0062 , H04B1/0021 , H04B1/06 , H04B2001/0491 , H04L1/08
摘要： Values representative of modulation signal components are extracted from a modulated signal. The modulated signal contains a modulation signal. A local clock signal is developed which correlates in time to the modulated signal and has a plurality of non-overlapping phase sectors per cycle. The modulated signal is accumulated into an accumulated value, separately for at least one phase sector of one cycle of the local clock signal. Each accumulated value is representative of a modulation signal component. The modulated signal accumulated is of an amount representative of the mathematical integral of the modulated signal during each phase sector of the local clock over which the modulated signal is accumulated.
摘要翻译：表示调制信号分量的值是从调制信号中提取的。调制信号包含调制信号。产生一个本地时钟信号，该信号在时间上与调制信号相关并且每个周期具有多个不重叠的相位扇区。对于本地时钟信号的一个周期的至少一个相位扇区，调制信号被分别累积为累加值。每个累加值表示调制信号分量。所累积的调制信号具有表示在调制信号被累积的本地时钟的每个相位扇区期间调制信号的数学积分的量。

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