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. 发明申请

US20190190450A1 Detector Circuit 审中-公开
公开(公告)号：US20190190450A1
公开(公告)日：2019-06-20
申请号：US16301471
申请日：2016-08-02
申请人： HITACHI, LTD.
发明人： Yasuhiro IKEDA , Toru YAZAKI , Yutaka UEMATSU
IPC分类号： H03D1/10 , H03D1/18 , G05F3/26
CPC分类号： H03D1/10 , G05F3/262 , H03D1/18 , H03D2200/0043
摘要： A change in a detection voltage due to the temperature is suppressed. A detector circuit includes: a first rectification element having an anode to which an input signal is inputted; a second rectification element having a cathode connected with a cathode of the first rectification element and having an anode connected to an output terminal; and a current mirror circuit for supplying a current to the first rectification element, and for supplying a current-mirror current of the current to the second rectification element.

2. 发明授权

US09325361B2 Receiver system 有权
标题翻译：接收机系统
公开(公告)号：US09325361B2
公开(公告)日：2016-04-26
申请号：US14062355
申请日：2013-10-24
申请人： EM Microelectronic-Marin S.A.
发明人： Armin Tajalli
IPC分类号： H03D1/06 , H04L27/06 , H03K9/02 , H04B1/16 , H03K9/00 , H03G3/30 , H03K5/007 , H03D1/18
CPC分类号： H04B1/16 , H03D1/06 , H03D1/18 , H03D2200/0047 , H03G3/3052 , H03K5/007 , H03K9/00 , H03K9/02 , H04L27/06 , H04L27/08
摘要： A receiver circuit includes an input terminal through which an input signal is received. The receiver circuit also includes a first amplifier stage connected via its input to the input terminal of the receiver circuit; and an envelope detector stage that detects the incoming signal maxima to recover the signal envelope, where the detector stage is connected to the output of the first stage.
摘要翻译：接收器电路包括输入端子，通过该输入端子接收输入信号。接收器电路还包括通过其输入端连接到接收器电路的输入端的第一放大级; 以及包络检测器级，其检测输入信号最大值以恢复信号包络，其中检测器级连接到第一级的输出。

3. 发明授权

US09160275B2 Envelope detection apparatus dynamically controlled in response to input signal and envelope detection method thereof 有权
标题翻译：包络检测装置响应于输入信号及其包络检测方法动态控制
公开(公告)号：US09160275B2
公开(公告)日：2015-10-13
申请号：US13683439
申请日：2012-11-21
申请人： Samsung Electronics Co., Ltd.
发明人： Seong Joong Kim , Jae Sup Lee , Sang Gug Lee , Jae Seung Lee , Sok Kyun Han
IPC分类号： H03D1/00 , H03D1/18 , H03D1/10
CPC分类号： H03D1/18 , H03D1/00 , H03D1/10
摘要： An envelope detection apparatus dynamically controlled in response to an input signal and an envelope detection method thereof are provided. The envelope detection apparatus includes an envelope detector configured to output an envelope of an input signal. The envelope detection apparatus further includes a detection band determination unit configured to determine a detection band based on the input signal. The envelope detection apparatus further includes a detection band controller configured to control a detection band of the envelope detector based on the determined detection band.
摘要翻译：提供了一种根据输入信号动态控制的包络检测装置及其包络检测方法。包络检测装置包括被配置为输出输入信号的包络的包络检测器。包络检测装置还包括：检测频带确定单元，被配置为基于输入信号确定检测频带。包络检测装置还包括检测带控制器，被配置为基于所确定的检测带来控制包络检测器的检测带。

4. 发明申请

US20150136857A1 ENVELOPE DETECTOR CIRCUIT 有权
标题翻译：环境检测电路
公开(公告)号：US20150136857A1
公开(公告)日：2015-05-21
申请号：US14535032
申请日：2014-11-06
申请人： EM Microelectronic-Marin SA
发明人： Nicolas PILLIN , Goran STOJANOVIC , Tony GHUELDRE
IPC分类号： G01R19/04 , G06K19/07
CPC分类号： G01R19/04 , G06K7/0008 , G06K19/07 , G06K19/0713 , H03D1/10 , H03D1/18 , H03D2200/0011 , H03D2200/0043 , H03D2200/0098 , H04B5/0056 , H04L27/06
摘要： An envelope detector circuit, suitable for use in RFID tags, includes a voltage doubler circuit and a biasing voltage generating circuit which comprises components matched respectively to rectifying components of the voltage doubler circuit. A rectifying component of this voltage doubler circuit is formed by a transistor controlled by the biasing voltage generating circuit which provides a biasing voltage to a control gate of this transistor, the biasing voltage generating circuit being arranged so as to permit a determined forward biasing current to flow through the transistor and further rectifying elements of the voltage doubler circuit. This embodiment provides fast, highly sensitive detection of envelope waveforms in input signals. Thanks to the matched rectifying components, efficiency variations due to variations in manufacturing process can be eliminated. The envelope detector circuit is further arranged for maintaining a stable detection independent of variations in temperature.
摘要翻译：适用于RFID标签的包络检测器电路包括倍压器电路和偏置电压产生电路，其包括分别匹配倍压器电路的整流部件的部件。该倍压电路的整流元件是由偏置电压产生电路控制的晶体管形成的，该偏置电压产生电路向该晶体管的控制栅极提供偏置电压，偏置电压产生电路被布置成允许确定的正向偏置电流流过晶体管并进一步整流元件的倍压器电路。该实施例提供对输入信号中的包络波形的快速，高灵敏度的检测。由于匹配的整流元件，可以消除由于制造过程中的变化引起的效率变化。包络检测器电路还被布置成用于保持独立于温度变化的稳定检测。

5. 发明授权

US09031121B2 Electronic circuit and method for recovering desired signals from carrier signals by demodulation as well as a modem 有权
标题翻译：用于通过解调和调制解调器从载波信号中恢复所需信号的电子电路和方法
公开(公告)号：US09031121B2
公开(公告)日：2015-05-12
申请号：US13711793
申请日：2012-12-12
申请人： Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG
发明人： Bjorn Haase , Stefan Pilz
IPC分类号： H04B1/10 , H04B1/16 , H04B1/38 , H04B15/00 , H03D1/18
CPC分类号： H04B1/10 , H03D1/18 , H04B1/16 , H04B1/38 , H04B15/00
摘要： An electronic circuit comprising a rectifier which passes only one polarity of a carrier signal; at least one filter, subsequent to the rectifier, for the suppression of at least one frequency range of the carrier signal; a voltage matching network, subsequent to the filter, which is embodied so that it matches the voltage of the desired signal, and leads to one of the two inputs of a comparator, wherein an output of the comparator is switched, depending on the difference between the two inputs, and a feedback network connected in parallel with the comparator, wherein the feedback network connects one of the two inputs of the comparator with the output of the comparator, the feedback network comprises a high-pass characteristic. The invention furthermore comprises a method for the recovering of desired signals from a carrier signal by demodulation and a modem.
摘要翻译：一种电子电路，包括仅通过载波信号的一个极性的整流器; 在整流器之后的至少一个滤波器，用于抑制载波信号的至少一个频率范围; 滤波器之后的电压匹配网络被实现为使得其匹配所需信号的电压，并且导致比较器的两个输入中的一个，其中比较器的输出被切换，取决于比较器的输出之间的差异所述两个输入和与所述比较器并联连接的反馈网络，其中所述反馈网络将所述比较器的两个输入中的一个与所述比较器的输出连接，所述反馈网络包括高通特性。本发明还包括一种通过解调和调制解调器从载波信号中恢复所需信号的方法。

6. 发明申请

US20140273898A1 Frequency Selective Logarithmic Amplifier With Intrinsic Frequency Demodulation Capability 有权
标题翻译：具有固有频率解调能力的频率选择对数放大器
公开(公告)号：US20140273898A1
公开(公告)日：2014-09-18
申请号：US14213972
申请日：2014-03-14
申请人： DockOn AG
发明人： Forrest Brown , Patrick Rada , Alexandre Dupuy
IPC分类号： H04B1/16
CPC分类号： H04W52/52 , G06G7/24 , H03D1/18 , H03D3/00 , H03D11/04 , H03D11/08 , H03D2200/006 , H04B1/26 , H04L7/033 , H04L27/14
摘要： A regenerative selective logarithmic detector amplifier (LDA) can have integrated FM demodulation capabilities. It can receive a wired or wireless FM modulated signal and amplify or demodulate it with high sensitivity, high skirt ratio and minimized noise when compared to the prior art. When used in conjunction with other circuits such as a PLL or mixer, it can improve interference rejection and frequency selectivity and be locked on a precise channel in frequency and phase. The LDA produces intermittent oscillations that are self-quenched when reaching a given threshold. It also embeds the circuitry to perform direct FM discrimination. FM demodulation process is completed by a simple analog or digital frequency to voltage converter. This plus the fact that the instantaneous regeneration gain is low-medium permit to detect signals of small amplitudes buried in the noise.
摘要翻译：再生选择对数检波放大器（LDA）可以集成FM解调功能。与现有技术相比，它可以接收有线或无线FM调制信号，并以高灵敏度，高裙边比和最小化的噪声放大或解调它。当与其他电路（如PLL或混频器）结合使用时，可以提高干扰抑制和频率选择性，并锁定在频率和相位上的精确信道上。 LDA产生间歇振荡，当达到给定的阈值时，它们会自我淬火。它还嵌入电路以执行直接的FM鉴别。 FM解调过程由简单的模拟或数字频率到电压转换器完成。这加上瞬时再生增益是低介质允许检测埋在噪声中的小幅度信号的事实。

7. 发明授权

US08446179B2 Start signal detector circuit 有权
标题翻译：启动信号检测电路
公开(公告)号：US08446179B2
公开(公告)日：2013-05-21
申请号：US12095673
申请日：2006-11-29
申请人： Tadashi Maeda , Tomoyuki Yamase
发明人： Tadashi Maeda , Tomoyuki Yamase
IPC分类号： H03K5/153
CPC分类号： H03D1/10 , F02D2041/0012 , F02D2200/0812 , H03D1/18
摘要： A non-linear effect of a rectifier element is enhanced, an input amplitude is increased by further taking advantage of a resonance circuit, and a rectification efficiency of a rectifier circuit for detection is improved, so that the gain of an amplifier circuit at a latter stage can be set low. RF input terminals 101, 102 are applied with signals at phases opposite to each other. A signal at terminal 102 is applied to a gate of transistor M1 through capacitor C3, and a signal at terminal 101 is applied to node N1 connected with a source of transistor M1 and a gate and a drain of transistor M2 through capacitor C1. 301, 302 designate terminals applied with DC biases, and L1, C15 and L2, C16 are series resonance circuits. Half-wave double voltage rectifier circuits comprised of M1, M2, C1-C3, R1 are connected in cascade at a plurality of stages.
摘要翻译：整流元件的非线性效应得到提高，通过进一步利用谐振电路来增加输入振幅，提高了用于检测的整流电路的整流效率，从而使放大电路的后级增益舞台可以设置低。 RF输入端子101,102以相位相反的信号施加。端子102处的信号通过电容器C3施加到晶体管M1的栅极，端子101处的信号通过电容器C1施加到与晶体管M1的源极和晶体管M2的栅极和漏极连接的节点N1。 301,302指示施加有直流偏置的端子，L1，C15和L2，C16是串联谐振电路。由M1，M2，C1-C3，R1构成的半波双电压整流电路分级连接成多级。

8. 发明申请

US20120126327A1 RESONATOR HAVING TERMINALS AND A METHOD FOR MANUFACTURING THE RESONATOR 有权
标题翻译：具有端子的谐振器和用于制造谐振器的方法
公开(公告)号：US20120126327A1
公开(公告)日：2012-05-24
申请号：US13302091
申请日：2011-11-22
申请人： In Sang SONG , Sung Woo HWANG , Yun Kwon PARK , Byeong Kwon JU , Jae Sung RIEH , Jea Shik SHIN , Hee Tae KIM
发明人： In Sang SONG , Sung Woo HWANG , Yun Kwon PARK , Byeong Kwon JU , Jae Sung RIEH , Jea Shik SHIN , Hee Tae KIM
IPC分类号： H01L29/78 , H01L21/336
CPC分类号： H01L29/0676 , B82Y10/00 , B82Y40/00 , H01L29/1033 , H01L29/413 , H01L29/42376 , H01L29/4238 , H01L29/66439 , H01L29/785 , H03D1/18 , H03D3/26 , H03D7/12 , H03H2009/02314
摘要： A resonator and a method for manufacturing a resonator are provided. The method may include doping a wafer, and forming on the wafer a substrate, a drain electrode, a source electrode, a gate electrode, and at least one nanowire.
摘要翻译：提供了一种用于制造谐振器的谐振器和方法。该方法可以包括掺杂晶片，以及在晶片上形成衬底，漏电极，源电极，栅电极和至少一个纳米线。

9. 发明申请

US20110204968A1 DEMODULATION CIRCUIT AND RFID TAG INCLUDING THE DEMODULATION CIRCUIT 有权
标题翻译：解调电路和RFID标签，包括解调电路
公开(公告)号：US20110204968A1
公开(公告)日：2011-08-25
申请号：US13026508
申请日：2011-02-14
申请人： Takanori MATSUZAKI , Yutaka SHIONOIRI
发明人： Takanori MATSUZAKI , Yutaka SHIONOIRI
IPC分类号： H01L25/00
CPC分类号： H03D1/18 , H01L27/1225
摘要： An object is to provide a demodulation circuit having a sufficient demodulation ability. Another object is to provide an RFID tag which uses a demodulation circuit having a sufficient demodulation ability. A material which enables a reverse current to be small enough, for example, an oxide semiconductor material, which is a wide bandgap semiconductor, is used in part of a transistor included in a demodulation circuit. By using the semiconductor material which enables a reverse current of a transistor to be small enough, a sufficient demodulation ability can be secured even when an electromagnetic wave having a high amplitude is received.
摘要翻译：目的在于提供具有足够的解调能力的解调电路。另一个目的是提供使用具有足够的解调能力的解调电路的RFID标签。在解调电路中包括的晶体管的一部分中使用能使反向电流足够小的材料，例如，宽带隙半导体的氧化物半导体材料。通过使用能够使晶体管的反向电流足够小的半导体材料，即使接收到具有高振幅的电磁波也能够确保足够的解调能力。

10. 发明授权

US07855595B2 High dynamic range ASK demodulator for use in an RFID transponder 有权
标题翻译：用于RFID应答器的高动态范围ASK解调器
公开(公告)号：US07855595B2
公开(公告)日：2010-12-21
申请号：US12182612
申请日：2008-07-30
申请人： Oliver Nehrig , Carlo Peschke , Ernst Muellner , Adolf Baumann , Jens Graul
发明人： Oliver Nehrig , Carlo Peschke , Ernst Muellner , Adolf Baumann , Jens Graul
IPC分类号： H03K9/02
CPC分类号： H04L27/06 , G06K19/0723 , H03D1/18 , H03K5/082
摘要： An ASK demodulator for use in an RFID transponder having a limiter circuit associated with the antenna circuit and converting the ASK antenna field strength modulation into an ASK limiter current modulation by limiting the antenna voltage to a fixed value and thereby causing the limiter current to be substantially proportional to the ASK antenna field strength, and a current discriminator circuit that discriminates the ASK limiter current modulation. By converting the field strength modulation into a proportional limiter current and discriminating that limiter current, a linear relationship and a stable demodulator sensitivity are achieved. The current discrimination can be made accurately under low-voltage conditions.
摘要翻译：一种用于RFID应答器的ASK解调器，其具有与天线电路相关联的限幅器电路，并将ASK天线场强调制转换为ASK限幅器电流调制，将天线电压限制为固定值，从而使限幅器电流基本上与ASK天线场强成比例的电流鉴别器电路，以及鉴别ASK限制器电流调制的电流鉴别器电路。通过将场强调制转换为比例限幅电流并鉴别限幅器电流，实现线性关系和稳定的解调器灵敏度。在低电压条件下可以准确地进行电流鉴别。

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