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1. 发明授权

US11909436B1 Methods and tunable apparatuses for dynamic dispersion compensation of electromagnetic signals 有权
公开(公告)号：US11909436B1
公开(公告)日：2024-02-20
申请号：US17867243
申请日：2022-07-18
申请人： THE BOARD OF REGENTS FOR THE OKLAHOMA AGRICULTURAL AND MECHANICAL COLLEGES
发明人： John F. O'Hara , Karl Louthan Strecker
IPC分类号： H04B1/719 , H04B1/7163 , H04B1/717
CPC分类号： H04B1/719 , H04B1/7174 , H04B1/71632 , H04B1/71635 , H04B1/71637
摘要： In ultra-wideband or impulse radio terahertz wireless communication, the electromagnetic signal may experience group delay dispersion (GDD). Without correction, this can degrade the achievable data transmission rate. An apparatus comprising a stratified structure having a front portion and a back portion is disclosed. The structure comprises a plurality of adjacent layers of differing refractive indices, wherein each layer has a refractive index different from an immediately adjacent layer. The structure further includes a backing layer at the back portion. The structure defines a GDD, which can be adjusted, and the structure is configured to introduce the GDD to an incident electromagnetic signal and thereby produce a dispersion-compensated electromagnetic signal when the incident signal is reflected by the structure. The GDD of the structure is configured to substantially cancel out the dispersive effects experienced by the electromagnetic signal in the signal path.

2. 发明申请

US20180316369A1 JITTER IMPROVEMENT IN SERIALIZER-DESERIALIZER (SERDES) TRANSMITTERS 审中-公开
公开(公告)号：US20180316369A1
公开(公告)日：2018-11-01
申请号：US16025831
申请日：2018-07-02
申请人： MaxLinear, Inc.
发明人： Amir Hadji-Abdolhamid , Sheng Ye
IPC分类号： H04B1/04 , H04B15/02 , H04L1/20 , H03M9/00 , H03K3/01 , H04B1/717
CPC分类号： H04B1/0475 , H03K3/01 , H03M9/00 , H04B1/7174 , H04B15/02 , H04L1/205 , H04L43/087 , H04L47/283
摘要： Systems and methods are provided for handling jitter improvement in transmitters. During processing of input data for serial transmission, it may be determined if jitter may occur, and when jitter occurs one or more adjustments may be determined, based on dummy data, to reduce jitter in an output corresponding to the input data. The one or more adjustments may then be applied during processing of the input data, to reduce jitter in a serial output corresponding to the input data. The dummy data may be generated based on the input data. The dummy data may be configured such that it may generate corresponding dummy current pulses which may be used in controlling supply variations during generation of the serial output. The use of the dummy data may be selectively turned on or off.

3. 发明申请

US20170366275A1 SYSTEM AND METHOD FOR PULSED BASED RECEIVER PHOTO SENSOR 审中-公开
公开(公告)号：US20170366275A1
公开(公告)日：2017-12-21
申请号：US15463566
申请日：2017-03-20
申请人： Rockwell Automation Technologies, Inc.
发明人： Donald L. CHARLANTINI , Gregory J. REIMANN , Derek W. GALLON , Frederic BOUTAUD
IPC分类号： H04B10/69
CPC分类号： H04B10/691 , G01V8/12 , G02B6/3598 , H01S3/00 , H04B1/7174 , H04B7/17 , H04B10/152
摘要： A photoelectric sensor uses a selective pulse detection technique and associated synchronization techniques to improve the quality of pulse detection, the operating range of the sensor, and the sensor's immunity to noise. These improvements also yield faster sensor response times and reduce the design cycle time. A modulated light beam emitted by the sensor's emitter comprises multiple pulse periods, with a pulse being transmitted within each period. The pulses are positioned within their respective periods at a defined offset time relative to the start of the periods, where the offset time can vary between periods according to a defined pattern. The receiver can selectively sample the signal based on synchronization information to determine whether the received signal contains the emitted pulse pattern. Through-beam sensor embodiments can generate the synchronization information internally based on an analysis of the analog signal corresponding to the modulated signal.

4. 发明授权

US09531432B2 Energy-efficient system for distant measurement of analog signals 有权
标题翻译：节能系统远程测量模拟信号
公开(公告)号：US09531432B2
公开(公告)日：2016-12-27
申请号：US14895016
申请日：2014-06-04
申请人： ELEKTROTEHNICKI FAKULTET SVEUCILISTA U OSIJEKU
发明人： Tomislav Matic , Marijan Herceg , Josip Job
IPC分类号： H03K7/04 , H03K7/06 , H03K9/04 , H03K9/06 , H04B1/717 , H03M1/12 , H04B1/7163 , H04B17/364
CPC分类号： H04B1/7174 , H03M1/125 , H04B1/7163 , H04B1/71632 , H04B17/364
摘要： An energy-efficient system for measurement of analog signals including one or more measuring units. Each measuring unit has a measuring probe which signal is processed by a modulator. All measuring units have identical modulators selected from the Time Encoding Machine family: Asynchronous Sigma Delta Modulator, Integrate And Fire Modulator and Integral Pulse Frequency Modulator. A signal from the modulator is processed by a delay circuit from which is optionally fed back to the modulator. Signals from the delay circuit and modulator are used to trigger a UWB pulse generator, which is optionally amplified and transmitted via transmission line or antenna. The delay circuit uniquely characterizes the measuring unit and enables the receiving unit to separate received signals from plurality of measuring units signals sent in an unsynchronized manner. The invention is useful for long term acquisition of analog signals, especially time varying signals such as biological signals.
摘要翻译：一种用于测量包括一个或多个测量单元的模拟信号的节能系统。每个测量单元都有一个测量探头，该信号由调制器处理。所有测量单元具有从时间编码机系列中选择的相同调制器：异步ΣΔ调制器，积分和火焰调制器和积分脉冲频率调制器。来自调制器的信号由延迟电路进行处理，延迟电路可选地反馈到调制器。来自延迟电路和调制器的信号用于触发UWB脉冲发生器，其可选地通过传输线或天线放大和传输。延迟电路唯一地表征测量单元，并且使接收单元能够将来自多个测量单元的接收信号分离成以不同步的方式发送的信号。本发明对于长期获取模拟信号，特别是时变信号（例如生物信号）是有用的。

5. 发明申请

US20160142097A1 ENERGY-EFFICIENT SYSTEM FOR DISTANT MEASUREMENT OF ANALOGUE SIGNALS 有权
标题翻译：用于模拟信号的距离测量的能量效率系统
公开(公告)号：US20160142097A1
公开(公告)日：2016-05-19
申请号：US14895016
申请日：2014-06-04
申请人： ELEKTROTEHNICKI FAKULTET SVEUCILISTA U OSIJEKU
发明人： Tomislav Matic , Marijan Herceg , Josip Job
IPC分类号： H04B1/717 , H04B17/364 , H04B1/7163
CPC分类号： H04B1/7174 , H03M1/125 , H04B1/7163 , H04B1/71632 , H04B17/364
摘要： An energy-efficient system for measurement of analogue signals including one or more measuring units. Each measuring unit has a measuring probe which signal is processed by a modulator. All measuring units have identical modulators selected from the Time Encoding Machine family: Asynchronous Sigma Delta Modulator , Integrate And Fire Modulator and Integral Pulse Frequency Modulator. A signal from the modulator is processed by a delay circuit from which is optionally fed back to the modulator. Signals from the delay circuit and modulator are used to trigger a UWB pulse generator, which is optionally amplified and transmitted via transmission line or antenna. The delay circuit uniquely characterizes the measuring unit and enables the receiving unit to separate received signals from plurality of measuring units signals sent in an unsynchronized manner. The invention is useful for long term acquisition of analog signals, especially time varying signals such as biological signals.
摘要翻译：一种用于测量包括一个或多个测量单位的模拟信号的节能系统。每个测量单元都有一个测量探头，该信号由调制器处理。所有测量单元具有从时间编码机系列中选择的相同调制器：异步ΣΔ调制器，积分和火焰调制器和积分脉冲频率调制器。来自调制器的信号由延迟电路进行处理，延迟电路可选地反馈到调制器。来自延迟电路和调制器的信号用于触发UWB脉冲发生器，其可选地通过传输线或天线放大和传输。延迟电路唯一地表征测量单元，并且使接收单元能够将来自多个测量单元的接收信号分离成以不同步的方式发送的信号。本发明对于长期获取模拟信号，特别是时变信号（例如生物信号）是有用的。

6. 发明授权

US08933756B2 IR-UWB transmitter 有权
标题翻译： IR-UWB发射机
公开(公告)号：US08933756B2
公开(公告)日：2015-01-13
申请号：US13495827
申请日：2012-06-13
申请人： Edmund James Colli-Vignarelli , Catherine Dehollain , Jean-Yves Le Boudec
发明人： Edmund James Colli-Vignarelli , Catherine Dehollain , Jean-Yves Le Boudec
IPC分类号： H03K3/03
CPC分类号： H04B1/7174 , H03K5/133
摘要： A generator of very short pulses where a cascade of inverters of arbitrary length characterized in that said inverters are adapted to produce pulses on their power supply line instead of their usual output.
摘要翻译：具有非常短脉冲的发生器，其中任意长度的级联反相器的特征在于所述反相器适于在其电源线上产生脉冲而不是其通常的输出。

7. 发明授权

US08860520B2 Pulse generator and semiconductor integrated circuit 有权
标题翻译：脉冲发生器和半导体集成电路
公开(公告)号：US08860520B2
公开(公告)日：2014-10-14
申请号：US13658108
申请日：2012-10-23
申请人： Fujitsu Limited
发明人： Yoichi Kawano , Toshihide Suzuki
IPC分类号： H03K3/64 , H03K3/355
CPC分类号： H03K3/354 , H04B1/7174
摘要： A pulse generator includes an oscillation circuit that generates a burst signal oscillated for ultrawideband band and a generation circuit that generates a trigger signal that causes oscillation by the oscillation circuit to be started.
摘要翻译：脉冲发生器包括产生用于超宽带频带振荡的突发信号的振荡电路和产生引起振荡电路振荡的触发信号的发生电路。

8. 发明申请

US20140050250A1 APPARATUS AND METHOD FOR GENERATING GAUSSIAN PULSE AND ULTRA WIDEBAND COMMUNICATION APPARATUS FOR GENERATING GAUSSIAN PULSE 有权
标题翻译：用于产生高斯脉冲的装置和方法以及用于产生高斯脉冲的超宽带通信装置
公开(公告)号：US20140050250A1
公开(公告)日：2014-02-20
申请号：US13966644
申请日：2013-08-14
申请人： Tsinghua University , Samsung Electronics Co., Ltd.
发明人： Shuli Geng , Woogeun Rhee , Jong Jin Kim , Dong Wook Kim , Zhihua Wang
IPC分类号： H04L27/04
CPC分类号： H04L27/04 , H03K5/159 , H04B1/7174 , H04L25/03834
摘要： A pulse generation apparatus includes a delay pulse generator configured to generate a plurality of delay pulses, an amplitude modulator configured to modulate amplitudes of the plurality of delay pulses, and a Gaussian pulse generator configured to generate a Gaussian pulse based on the amplitude-modulated delay pulses.
摘要翻译：脉冲发生装置包括：延迟脉冲发生器，被配置为产生多个延迟脉冲;调制器，被配置为调制多个延迟脉冲的幅度;以及高斯脉冲发生器，被配置为基于幅度调制延迟来产生高斯脉冲脉冲。

9. 发明申请

US20130195216A1 COMMUNICATION DEVICE 有权
标题翻译：通信设备
公开(公告)号：US20130195216A1
公开(公告)日：2013-08-01
申请号：US13687746
申请日：2012-11-28
申请人： Fujitsu Limited
发明人： Yasuhiro NAKASHA , Hiroki Hayashi , Takumi Itoh
IPC分类号： H04L25/03
CPC分类号： H04L25/03 , H03K5/12 , H03M5/16 , H04B1/71635 , H04B1/7172 , H04B1/7174
摘要： A communication device includes: a converting part converting a data signal from a non-return-to-zero signal to a return-to-zero signal; a trigger flip-flop inverting an output signal every time the return-to-zero signal changes in one cycle; a first filter outputting a positive pulse and a negative pulse alternately, which indicate existence and absence of the pulse corresponding to a value of the data signal, by removing a low frequency component of an output signal of the trigger flip-flop.
摘要翻译：一种通信设备包括：转换部分，将数据信号从非归零信号转换为归零信号; 触发器触发器每当一个周期中的归零信号变化时反相输出信号; 通过去除触发器触发器的输出信号的低频分量，交替地输出正脉冲和负脉冲的第一滤波器，其指示与数据信号的值相对应的脉冲的存在和不存在。

10. 发明授权

US08427242B2 Ultra wideband on-chip pulse generator 有权
标题翻译：超宽带片上脉冲发生器
公开(公告)号：US08427242B2
公开(公告)日：2013-04-23
申请号：US12354108
申请日：2009-01-15
申请人： Dani Raphaeli , Guy Shasha
发明人： Dani Raphaeli , Guy Shasha
IPC分类号： H03L7/085
CPC分类号： H04B1/7174
摘要： A method for generating an UWB pulses based on LC oscillator topology. Fast turn on of the oscillator is achieved by creating large asymmetry in a normally symmetrical topology which is used in a typical differential type oscillator. One method for achieving large asymmetry is activating one branch of a differential pair of branches for a short duration before activating both branches in a normal operation. The bandwidth of the pulse is controlled by modifying the duration of the oscillator activation. Fast turn on and turn off is essential for high bandwidth generation. The method is adaptable for generating binary phase shift keying (BPSK) modulation. Selecting the activated branch of a fully symmetrical topology controls the output phase and creates two possibilities which differ exactly by 180 degrees. In a preferred embodiment, all the pulse generator components are on-clip leading to a low cost solution. The circuit can generate high power pulses directly on a load. It is also an option to add an amplifier to drive the output and separate the load from the oscillator. This method generate high power, stable pulses under varying practical conditions like process changes, VDD changes and temperature changes.
摘要翻译：一种基于LC振荡器拓扑生成UWB脉冲的方法。通过在典型的差分型振荡器中使用的正常对称拓扑中产生较大的不对称性来实现振荡器的快速导通。实现大的不对称的一种方法是在正常操作中激活两个分支之前激活差分对分支的一个分支持续一段时间。通过修改振荡器激活的持续时间来控制脉冲的带宽。快速打开和关闭对于高带宽的生成至关重要。该方法适用于生成二进制相移键控（BPSK）调制。选择完全对称拓扑的激活分支控制输出阶段，并创建两个精确地相差180度的可能性。在优选实施例中，所有脉冲发生器部件都是固定的，导致低成本的解决方案。该电路可以直接在负载上产生高功率脉冲。也可以添加放大器来驱动输出并将负载与振荡器分离。该方法在变化的实际条件下产生高功率，稳定的脉冲，如过程变化，VDD变化和温度变化。

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