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1. 发明公开

US20240155484A1 METHODS AND SYSTEMS RELATING TO ULTRA WIDEBAND BROADCASTING 审中-公开
公开(公告)号：US20240155484A1
公开(公告)日：2024-05-09
申请号：US18414726
申请日：2024-01-17
申请人： TRANSFERT PLUS SOCIETE EN COMMANDITE
发明人： FREDERIC NABKI , DOMINIC DESLANDES , ALEXANDRE DESMARAIS , ANH-KIET VUONG , ANIS BOUNIF , WANG YU HAO , WILLIAM PHAM
IPC分类号： H04W52/02 , G03B21/00 , G03B21/26 , G06F1/16 , G06F3/01 , G06F3/03 , G06F3/0346 , G06F3/041 , G06F3/042 , G06F3/048 , G06F3/0482 , G06F3/04845 , G06F3/0488 , H04B1/04 , H04B1/403 , H04B1/66 , H04B1/713 , H04B1/7163 , H04B1/717 , H04B5/48 , H04N9/31
CPC分类号： H04W52/02 , G03B21/00 , G03B21/26 , G06F1/163 , G06F3/017 , G06F3/0304 , G06F3/0346 , G06F3/041 , G06F3/042 , G06F3/0425 , G06F3/0426 , G06F3/048 , G06F3/0482 , G06F3/04845 , G06F3/0488 , H04B1/0458 , H04B1/403 , H04B1/662 , H04B1/713 , H04B1/71632 , H04B1/71635 , H04B1/7172 , H04B5/48 , H04N9/3194 , H04B2001/0416 , H04B2001/0433 , H04B5/24 , Y02D30/70
摘要： Within many applications impulse radio based ultra-wideband (IR-UWB) transmission offers significant benefits for very short range high data rate communications when compared with existing standards and protocols. In many of these applications the main design goals are very low power consumption and very low complexity design for easy integration and cost reduction. Digitally programmable IR-UWB transmitters using an on-off keying modulation scheme on a 0.13 microns CMOS process operating on 1.2V supply and yielding power consumption as low as 0.9 mW at a 10 Mbps data rate with dynamic power control are enabled. The IR-UWB transmitters support new frequency hopping techniques providing more efficient spectrum usage and dynamic allocation of the spectrum when transmitting in highly congested frequency bands. Biphasic scrambling is also introduced for spectral line reduction. Additionally, an energy detection receiver for IR-UWB is presented to similarly meet these design goals whilst being adaptable to address IR-UWB transmitter specificity.

2. 发明公开

US20240042963A1 METHOD FOR ACTIVATING A VEHICLE FUNCTION AND ASSOCIATED ACTIVATION DEVICE 审中-公开
公开(公告)号：US20240042963A1
公开(公告)日：2024-02-08
申请号：US18229859
申请日：2023-08-03
申请人： Continental Automotive Technologies GmbH
发明人： Mohamed Cheikh , Sébastien Chanal
IPC分类号： B60R25/24 , H04B1/7163 , G01S11/02 , G01S3/04
CPC分类号： B60R25/245 , H04B1/71632 , G01S11/02 , G01S3/04 , H04B2201/71634 , H04B2201/71632
摘要： A method for activating a vehicle function, by an activation device including a transceiver to communicate with “hands-free” access equipment. The transceiver is equipped with a gyroscope and a magnetometer and two receiving antennas that have a coefficient of electromagnetic coupling between them that is below a threshold. The method includes the following steps for at least two consecutive footsteps: transmission of a signal comprising data of the gyroscope and the magnetometer of the “hands-free” equipment to the vehicle; comparison of the data with representative values of the gyroscope and the magnetometer of the transceiver; determination of a first direction of the user; determination of a second direction of the user based on an estimation of a first angle of arrival of the signal towards the transceiver; comparison of the first direction and the second direction; activation of the vehicle function on the basis of the result of the comparison.

3. 发明授权

US11743696B2 Ultra-wideband location systems and methods 有权
公开(公告)号：US11743696B2
公开(公告)日：2023-08-29
申请号：US17604944
申请日：2020-04-17
申请人： Be Spoon
发明人： Philippe Bollard
IPC分类号： H04W4/33 , G01S1/04 , G01S1/24 , G01S5/02 , G01S13/02 , H04W4/02 , H04W56/00 , H04B1/7163 , H04B1/7183 , H04B7/15
CPC分类号： H04W4/33 , G01S1/0428 , G01S1/24 , G01S5/021 , G01S13/0209 , H04B1/7183 , H04B1/71632 , H04B7/15 , H04W4/023 , H04W4/025 , H04W56/001 , H04B2201/71636
摘要： In an embodiment a real-time location method includes sending, by a master beacon device and one or more beacon repeater devices, ultra-wideband beacon frames, wherein the ultra-wideband beacon frames are transmitted as interleaved pairs of ultra-wideband beacon frames, wherein each interleaved pair is sent either from the master beacon device or the one or more beacon repeater devices, wherein each interleaved pair includes a first ultra-wideband beacon frame and a second ultra-wideband beacon frame, and wherein, for each interleaved pair, the first ultra-wideband beacon frame and the second ultra-wideband beacon frame are transmitted with a master time delay, receiving, by one or more tag devices, at least one of the interleaved pairs of ultra-wideband beacon frames, receiving, by the one or more beacon repeater devices, at least one of the interleaved pairs of ultra-wideband beacon frames, receiving, by one of a plurality of tag response receptor units, at least one of the interleaved pairs of ultra-wideband beacon frames, sending, by the one or more tag devices, ultra-wideband tag response frames and receiving, by the one of the plurality of tag response receptor units, at least one of the ultra-wideband tag response frames.

4. 发明授权

US10644744B2 Methods and apparatus for ultra wideband multiuser interference reduction 有权
公开(公告)号：US10644744B2
公开(公告)日：2020-05-05
申请号：US16106354
申请日：2018-08-21
申请人： Apple Inc.
发明人： Xiaoming Yu , Alejandro J. Marquez , Indranil S. Sen , Peter M. Agboh , Shang-Te Yang , Vusthla Sunil Reddy
IPC分类号： H04B1/7103 , H04B1/7163 , H04J3/06 , H04B7/06 , H04W74/08
CPC分类号： H04B1/7103 , H04B1/7163 , H04B1/71632 , H04B1/71635 , H04B7/06 , H04B7/0613 , H04J3/0635 , H04J3/0658 , H04B2201/7097 , H04W74/0808
摘要： Methods and apparatuses are presented to reduce multiuser interference resulting from two or more overlapping ultra wideband (UWB) transmissions by randomizing the start time of packets and/or bursts within the packets. A random offset time may be generated for a packet, and transmission of the packet may be arbitrarily delayed by that random offset time, relative to an earlier time at which the packet is prepared for transmission. A random offset time may be generated for a pulse burst within a symbol of a packet, and transmission of the burst may be delayed by that random offset time, relative to a nominal transmission window within the symbol. The burst may therefore occupy a portion of a guard period following the nominal transmission window. Either procedure, or both procedures, may be used to reduce multiuser interference between two concurrently transmitted packets by randomizing overlap occurring between the bursts.

5. 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.

6. 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.

7. 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。

8. 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。

9. 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。

10. 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。

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