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

US09860094B2 Method and apparatus for spectrum spreading of a pulse-density modulated waveform 有权
公开(公告)号：US09860094B2
公开(公告)日：2018-01-02
申请号：US15614910
申请日：2017-06-06
申请人： Entropic Communications, LLC
发明人： Branislav Petrovic , Carl Harry Alelyunas
IPC分类号： H03K7/08 , H04L27/10 , H04L27/04 , H03M1/82 , H03M3/00 , H04B1/692 , H04L25/49 , H04B1/717 , H04B1/7163 , H04B1/707
CPC分类号： H04L27/103 , H03M1/822 , H03M3/506 , H04B1/692 , H04B1/707 , H04B1/71632 , H04B1/7172 , H04B2201/71638 , H04L25/4902 , H04L27/04
摘要： Methods and systems are provided for spreading spectral density of pulse streams during digital to analog conversion. An example system may comprise an accumulator circuit, a bit generator circuit, and a feedback circuit. The accumulator circuit may be operable to receive a signal to be spread and generate an output based on the signal to be spread and on one or more inputs generated within the system. The bit generator circuit may be operable to input into the accumulator circuit sequences meeting at least one particular criterion. The feedback circuit may be operable to apply an adjustment to a signal corresponding to an output of the accumulator circuit to generate a feedback signal, and input the feedback signal into the accumulator circuit.

2. 发明申请

US20170338983A1 METHOD AND APPARATUS FOR SPECTRUM SPREADING OF A PULSE-DENSITY MODULATED WAVEFORM 审中-公开
公开(公告)号：US20170338983A1
公开(公告)日：2017-11-23
申请号：US15614910
申请日：2017-06-06
申请人： Entropic Communications, LLC
发明人： Branislav Petrovic , Carl Harry Alelyunas
IPC分类号： H04L27/10 , H04B1/692 , H04L27/04 , H03M1/82 , H04L25/49 , H03M3/00 , H04B1/717 , H04B1/7163 , H04B1/707
CPC分类号： H04L27/103 , H03M1/822 , H03M3/506 , H04B1/692 , H04B1/707 , H04B1/71632 , H04B1/7172 , H04B2201/71638 , H04L25/4902 , H04L27/04
摘要： Methods and systems are provided for spreading spectral density of pulse streams during digital to analog conversion. An example system may comprise an accumulator circuit, a bit generator circuit, and a feedback circuit. The accumulator circuit may be operable to receive a signal to be spread and generate an output based on the signal to be spread and on one or more inputs generated within the system. The bit generator circuit may be operable to input into the accumulator circuit sequences meeting at least one particular criterion. The feedback circuit may be operable to apply an adjustment to a signal corresponding to an output of the accumulator circuit to generate a feedback signal, and input the feedback signal into the accumulator circuit.

3. 发明申请

US20160302074A1 MULTI-PULSE COMMUNICATION USING SPREADING SEQUENCES 审中-公开
标题翻译：使用扩展序列的多脉冲通信
公开(公告)号：US20160302074A1
公开(公告)日：2016-10-13
申请号：US14683367
申请日：2015-04-10
申请人： NXP B.V.
发明人： Andries Hekstra , Stefan Drude , Frank Leong , Arie Koppelaar
IPC分类号： H04W12/10 , H04L9/00 , H04B1/7097
CPC分类号： H04L9/00 , H04B1/692 , H04B1/71632 , H04B10/116 , H04B2201/70715 , H04L63/0435 , H04L63/1466
摘要： Various exemplary embodiments relate to a method of communicating by a transmitter. Embodiments of the method may include creating information to be used by a receiver to define a spreading sequence for a subsequent packet, coding the information into a current communications packet, and transmitting the current communications packet.
摘要翻译：各种示例性实施例涉及由发射机进行通信的方法。该方法的实施例可以包括创建要由接收机使用的信息来定义用于后续分组的扩展序列，将该信息编码为当前通信分组，以及发送当前通信分组。

4. 发明申请

US20150092872A1 METHOD FOR SPREADING A PLURALITY OF DATA SYMBOLS ONTO SUBCARRIERS OF A CARRIER SIGNAL 有权
标题翻译：将多个数据符号扩展到载波信号的子载波的方法
公开(公告)号：US20150092872A1
公开(公告)日：2015-04-02
申请号：US14565609
申请日：2014-12-10
申请人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
发明人： Wilhelm KEUSGEN , Michael PETER , Andreas KORTKE
IPC分类号： H04L5/00 , H04L27/26
CPC分类号： H04L5/0044 , H04B1/69 , H04B1/71632 , H04L5/0021 , H04L27/2601 , H04L27/2634
摘要： A method for spreading a plurality of data symbols onto subcarriers of a carrier signal for a transmission in a transmission system provides a data vector, including the plurality of data symbols. The provided data vector is transformed, and based on the transformed data vector and a spreading matrix subsequent to the transform, a spread data vector is being created, having a length which corresponds to the number of the subcarriers.
摘要翻译：用于将多个数据符号扩展到用于传输系统中的传输的载波信号的子载波上的方法提供包括多个数据符号的数据向量。所提供的数据矢量被变换，并且基于变换的数据矢量和变换之后的扩展矩阵，正在创建扩展数据矢量，具有对应于子载波数量的长度。

5. 发明申请

US20140348209A1 RADIO COMMUNICATION APPARATUS 有权
标题翻译：无线电通信设备
公开(公告)号：US20140348209A1
公开(公告)日：2014-11-27
申请号：US14455242
申请日：2014-08-08
申请人： Renesas Electronics Corporation
发明人： Takahiro KAWANO
IPC分类号： H04B1/7136 , H04B1/715
CPC分类号： H04B1/7136 , H04B1/715 , H04B1/71632 , H04B2001/71365 , H04B2001/7154
摘要： An apparatus includes: an offset adjustment unit supplying an offset correction signal corresponding to a frequency switching to an adder unit receiving output from a mixer; a timing adjustment unit adjusting the timing of a frequency switching signal supplied to a local oscillator and the timing of an offset correction amount switching signal supplied to the offset adjustment unit for changing an offset amount in correspondence with the frequency switching in the local oscillator; a noise amount measurement and calculation unit receiving a signal obtained by amplifying and filtering the signal from the adder unit, to measure a noise amount of the signal and generates a timing determination signal based on the noise amount; and a control unit controlling frequency switching signal timing and the offset correction amount switching signal supplied to the timing adjustment unit, based on the timing determination signal from the noise amount measurement and calculation unit.
摘要翻译：一种装置包括：偏移调整单元，将对应于频率切换的偏移校正信号提供给从混合器接收输出的加法器单元; 定时调整单元，调整提供给本地振荡器的频率切换信号的定时和提供给偏移调整单元的偏移校正量切换信号的定时，用于根据本地振荡器中的频率切换改变偏移量; 噪声量测量和计算单元接收通过对来自加法器单元的信号进行放大和滤波而获得的信号，以测量信号的噪声量，并基于噪声量产生定时确定信号; 以及控制单元，其基于来自噪声量测量和计算单元的定时确定信号，控制频率切换信号定时和提供给定时调整单元的偏移校正量切换信号。

6. 发明申请

US20140347213A1 Method and System for Estimation and Extraction of Interference Noise from Signals 有权
标题翻译：用于估计和提取信号干扰噪声的方法和系统
公开(公告)号：US20140347213A1
公开(公告)日：2014-11-27
申请号：US14452902
申请日：2014-08-06
申请人： U.S. Army Research Laboratory ATTN: RDRL-LOC-I
发明人： Lam H. Nguyen , Trac D. Tran
IPC分类号： G01S13/90 , H04B15/00
CPC分类号： H04B15/00 , G01S7/023 , G01S13/0209 , G01S13/90 , H04B1/71632 , H04B17/345 , H04L27/0004
摘要： A system for reception of electromagnetic waves in spectrum in which interference occurs comprising at least one transmitter; at least one receiver configured to receive the received signal; a first memory portion configured to store data relating to a point target response; a spectrum estimator configured to estimate the frequencies at which interfering signals occur; at least one processor configured to generate an estimation of the interfering signals at the frequencies estimated by the spectrum estimator; a second memory portion operatively connected to the at least one processor configured to store the estimation of the components of the interfering signals; the at least one processor configured to substantially reduce or eliminate radio frequency interfering signals from the received signal utilizing the point target response and the estimation of the interfering signals; and a method to substantially reduce or eliminate radio frequency interfering signals from for image data.
摘要翻译：一种用于在发生干扰的频谱中接收电磁波的系统，包括至少一个发射机; 至少一个接收器，被配置为接收所接收的信号; 第一存储器部分，被配置为存储与点目标响应有关的数据; 频谱估计器，被配置为估计发生干扰信号的频率; 至少一个处理器，被配置为产生由所述频谱估计器估计的频率处的所述干扰信号的估计; 第二存储器部分，可操作地连接到被配置为存储干扰信号的分量的估计的至少一个处理器; 所述至少一个处理器被配置为利用所述点目标响应和所述干扰信号的估计来大大减少或消除来自所接收信号的射频干扰信号; 以及从图像数据中显着减少或消除射频干扰信号的方法。

7. 发明授权

US08687672B2 Narrowband interference rejection for ultra-wideband systems 失效
标题翻译：超宽带系统的窄带干扰抑制
公开(公告)号：US08687672B2
公开(公告)日：2014-04-01
申请号：US13848845
申请日：2013-03-22
申请人： AT&T Intellectual Property I, L.P.
发明人： Saeed S. Ghassemzadeh , Jason Vincent Bellorado , Ashley B. Tarokh
IPC分类号： H04B1/00
CPC分类号： H04B1/7097 , H04B1/692 , H04B1/71632 , H04B1/7176 , H04B1/719
摘要： A technique for reducing interference between a direct-sequence ultra-wideband communications system and a narrowband communications system uses interference-rejecting spreading codes to reduce signal power in a frequency band associated with the narrowband communications system. A method of operating an ultra-wideband communications system includes applying an interference-rejecting spreading code to a signal for transmission. The interference-rejecting spreading code is configured to reduce power in a particular frequency band of a transmit or receive power spectral density associated with the ultra-wideband signal without substantially reducing power outside that particular frequency band of the transmit or receive power spectral density associated with the ultra-wideband signal.
摘要翻译：用于减少直接序列超宽带通信系统和窄带通信系统之间的干扰的技术使用干扰抑制扩展码来降低与窄带通信系统相关联的频带中的信号功率。一种操作超宽带通信系统的方法包括将干扰抑制扩展码应用于传输信号。干扰抑制扩展码被配置为降低与超宽带信号相关联的发射或接收功率谱密度的特定频带中的功率，而不会基本上减少与特定频带相关联的发射或接收功率谱密度之外的功率超宽带信号。

8. 发明授权

US08630329B2 High-speed sampling and low-precision quantification pulse ultra-wideband wireless communication method 有权
标题翻译：高速采样和低精度量化脉冲超宽带无线通信方式
公开(公告)号：US08630329B2
公开(公告)日：2014-01-14
申请号：US13498576
申请日：2009-09-28
申请人： Zaichen Zhang , Guangguo Bi , Xiaohu You , Liang Wu
发明人： Zaichen Zhang , Guangguo Bi , Xiaohu You , Liang Wu
IPC分类号： H04B1/00
CPC分类号： H04B1/7183 , H04B1/71632 , H04B1/717
摘要： For a demand of high speed, low cost and low power loss short distance wireless communication, a high-speed sampling and low-precision quantification pulse ultra-wideband wireless communication method is provided. A baseband narrow pulse sequence is generated at a transmission end using the digital technology by the method, and is transmitted after modulating amplifying and filtering and amplifying at a reception end, after the digital-signal processing of synchronizing, channel estimating, related detecting, and channel decoding, tec, is performed for the quantified data, the transmission information is retrieved. Comparing with the present carrier mechanism UWB wireless communication technology, the method does not need the complex radio frequency processing of orthogonal modulation/demodulation and frequency spectrum moving, etc, the quantification precision of analog-to-digital conversion is also decreased greatly, so the cost and power loss are greatly decreased; comparing with the present pulse mechanism UWB wireless communication technology, the method provided by the present invention greatly increase the data transmission rate, and increases the stability, reliability and integration.
摘要翻译：针对高速，低成本，低功耗短距离无线通信的需求，提供了高速采样和低精度定量脉冲超宽带无线通信方式。使用该方法的数字技术，在发送端生成基带窄脉冲序列，在进行同步，信道估计，相关检测和数字信号估计的数字信号处理之后，在接收端进行调制放大和滤波放大后发送对量化数据执行信道解码tec，检索发送信息。与现有载波机制UWB无线通信技术相比，该方法不需要正交调制/解调和频谱移动等复杂的射频处理，模数转换的量化精度也大大降低，成本和功率损耗大大降低; 与目前的脉冲机制UWB无线通信技术相比，本发明提供的方法大大提高了数据传输速率，提高了稳定性，可靠性和集成度。

9. 发明授权

US08532586B2 High data rate transmitter and receiver 有权
标题翻译：高数据速率发射机和接收机
公开(公告)号：US08532586B2
公开(公告)日：2013-09-10
申请号：US13317177
申请日：2011-10-12
申请人： Ismail Lakkis , Yasaman Bahreini , John Santhoff
发明人： Ismail Lakkis , Yasaman Bahreini , John Santhoff
IPC分类号： H04B1/02
CPC分类号： H04B1/71637 , H04B1/71632 , H04B1/71635
摘要： A high-speed transmitter and receiver are provided. In one embodiment, a transmitter comprises a baseband processor structured to receive data and to convert the data into a multiplicity of high and low signal values, with each high and low signal value having a first timing interval. A local oscillator generates a clock signal at a second timing interval and a digital circuit combines the high and low signal values with the clock signal to produce a transmission signal directly at a transmission frequency. A receiver is configured to receive the signal. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.
摘要翻译：提供高速发射器和接收器。在一个实施例中，发射机包括被构造为接收数据并将数据转换成多个高和低信号值的基带处理器，其中每个高和低信号值具有第一定时间隔。本地振荡器以第二定时间隔产生时钟信号，并且数字电路将高信号值和低信号值与时钟信号组合，以直接以传输频率产生传输信号。接收器被配置为接收信号。本摘要仅用于遵守允许读者快速确定本文所包含的披露的主题的抽象要求规则。本摘要以明确的理解提交，不会用于解释或限制权利要求的范围或含义。

10. 发明申请

US20130223483A1 NARROWBAND INTERFERENCE REJECTION FOR ULTRA-WIDEBAND SYSTEMS 失效
标题翻译：超宽带系统的窄带干扰抑制
公开(公告)号：US20130223483A1
公开(公告)日：2013-08-29
申请号：US13848845
申请日：2013-03-22
申请人： AT&T INTELLECTUAL PROPERTY I, L.P.
发明人： Saeed S. Ghassemzadeh , Jason Vincent Bellorado , Ashley B. Tarokh
IPC分类号： H04B1/7097
CPC分类号： H04B1/7097 , H04B1/692 , H04B1/71632 , H04B1/7176 , H04B1/719
摘要： A technique for reducing interference between a direct-sequence ultra-wideband communications system and a narrowband communications system uses interference-rejecting spreading codes to reduce signal power in a frequency band associated with the narrowband communications system. A method of operating an ultra-wideband communications system includes applying an interference-rejecting spreading code to a signal for transmission. The interference-rejecting spreading code is configured to reduce power in a particular frequency band of a transmit or receive power spectral density associated with the ultra-wideband signal without substantially reducing power outside that particular frequency band of the transmit or receive power spectral density associated with the ultra-wideband signal.
摘要翻译：用于减少直接序列超宽带通信系统和窄带通信系统之间的干扰的技术使用干扰抑制扩展码来降低与窄带通信系统相关联的频带中的信号功率。一种操作超宽带通信系统的方法包括将干扰抑制扩展码应用于传输信号。干扰抑制扩展码被配置为降低与超宽带信号相关联的发射或接收功率谱密度的特定频带中的功率，而不会基本上减少与特定频带相关联的发射或接收功率谱密度之外的功率超宽带信号。

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