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

WO2006130725A3 AUTHENTICATION AND ENCRYPTION METHODS USING SHARED SECRET RANDOMNESS IN A JOINT CHANNEL 审中-公开
标题翻译：在联合通道中使用共享秘密随机的认证和加密方法
公开(公告)号：WO2006130725A3
公开(公告)日：2007-12-13
申请号：PCT/US2006021173
申请日：2006-05-31
申请人： INTERDIGITAL TECH CORP , REZNIK ALEXANDER , PURKAYASTHA DEBASHISH , GOLDBERG STEVEN JEFFREY , OLESEN ROBERT LIND , RUDOLF MARIAN , CHA INHYOK , CARLTON ALAN GERALD , SHAH YOGENDRA C , RAHMAN SHAMIN AKBAR , MUKHERJEE RAJAT PRITAM , DIFAZIO ROBERT A , STERNBERG GREGORY S , KAZAKEVICH LEONID , SIWIAK KAZIMIERZ , ZHANG GUODONG , HAQUE TANBIR , GUCCIONE LOUIS J , CHITRAPU PRABHAKAR R , KUMOLUYI AKINLOLU OLORUNTOSI , BRIANCON ALAIN CHARLES LOUIS
发明人： REZNIK ALEXANDER , PURKAYASTHA DEBASHISH , GOLDBERG STEVEN JEFFREY , OLESEN ROBERT LIND , RUDOLF MARIAN , CHA INHYOK , CARLTON ALAN GERALD , SHAH YOGENDRA C , RAHMAN SHAMIN AKBAR , MUKHERJEE RAJAT PRITAM , DIFAZIO ROBERT A , STERNBERG GREGORY S , KAZAKEVICH LEONID , SIWIAK KAZIMIERZ , ZHANG GUODONG , HAQUE TANBIR , GUCCIONE LOUIS J , CHITRAPU PRABHAKAR R , KUMOLUYI AKINLOLU OLORUNTOSI , BRIANCON ALAIN CHARLES LOUIS
IPC分类号： H04L9/00 , H04B7/00 , H04L9/30
CPC分类号： H04B7/0434 , H04B7/0695 , H04L9/0631 , H04L9/0656 , H04L9/0875 , H04L9/3271 , H04L63/0428 , H04L63/061 , H04L63/08 , H04L63/1441 , H04L63/1466 , H04L63/18 , H04L2209/34 , H04L2209/80 , H04W12/02 , H04W12/04 , H04W12/06 , H04W92/10
摘要： The present invention relates to secret key generation and authentication methods that are based on joint randomness not shared by others (JRNSO), in which unique channel response between two communication terminals generates a secret key. Multiple network access points use a unique physical location of a receiving station to increase user data security. High data rate communication data is encrypted by generating a random key and a pseudo-random bit stream. A configurable interleaving is achieved by introduction of JRNSO bits to an encoder used for error-correction codes. Databases of user data are also protected by JRNSO-based key mechanisms. Additional random qualities are induced on the joint channel using MIMO eigen-beamforming, antenna array deflection, polarization selection, pattern deformation, and path selection by beamforming or time correlation. Gesturing induces randomness according to uniquely random patterns of a human user's arm movements inflected to the user device.
摘要翻译：本发明涉及基于其他人不共享的联合随机性（JRNSO）的秘密密钥生成和认证方法，其中两个通信终端之间的唯一信道响应产生密钥。多个网络接入点使用接收站的唯一物理位置来增加用户数据的安全性。通过生成随机密钥和伪随机比特流来加密高数据速率通信数据。通过将JRNSO位引入用于纠错码的编码器来实现可配置的交错。用户数据的数据库也受到基于JRNSO的关键机制的保护。使用MIMO本征波束形成，天线阵列偏转，偏振选择，图案变形以及通过波束形成或时间相关的路径选择，在联合信道上引起附加随机质量。手势根据用户装置的人体手臂运动的唯一随机模式引起随机性。

2. 发明申请

WO2005107060A3 METHOD AND SYSTEM FOR COMPENSATING FOR PHASE VARIATIONS CAUSED BY TRANSMITTER ACTIVATION 审中-公开
标题翻译：用于补偿由发射器激活引起的相位变化的方法和系统
公开(公告)号：WO2005107060A3
公开(公告)日：2008-07-24
申请号：PCT/US2005009432
申请日：2005-03-21
申请人： INTERDIGITAL TECH CORP , KAZAKEVICH LEONID , HAQUE TANBIR , DEMIR ALPASLAN , TROIANO ROBERT
发明人： KAZAKEVICH LEONID , HAQUE TANBIR , DEMIR ALPASLAN , TROIANO ROBERT
IPC分类号： H04B1/04 , H03C1/62 , H03F1/02 , H03F1/06 , H03F1/14 , H03F1/30 , H03F3/24 , H04K1/02
CPC分类号： H03F3/24 , H03F1/0205 , H03F1/0211 , H03F1/14 , H03F1/305 , H03F2200/336
摘要： A method and apparatus that reduces the amount of constellation rotation due to power amplifier (PA 125) insertion phase variation during activation (i.e., turn on) of a transmitter (100). This is accomplished by applying an instantaneous phase rotation (175) during the transmitter turn on at digital baseband (165, 170) to counteract and minimize unwanted phase variations.
摘要翻译：一种减少由于功率放大器（PA 125）在发射机（100）的激活（即导通）期间的插入相位变化引起的星座旋转量的方法和装置。这是通过在数字基带（165,170）处的发射机接通期间施加瞬时相位旋转（175）来实现的，以抵消并最小化不期望的相位变化。

3. 发明申请

WO2007106460A3 ONE BIT DIGITAL QUADRATURE MODULATOR 审中-公开
标题翻译：一位数字数字调制器
公开(公告)号：WO2007106460A3
公开(公告)日：2007-11-01
申请号：PCT/US2007006266
申请日：2007-03-12
申请人： INTERDIGITAL TECH CORP , HAQUE TANBIR , KAZAKEVICH LEONID
发明人： HAQUE TANBIR , KAZAKEVICH LEONID
IPC分类号： H04L27/36
CPC分类号： H04L27/361 , H03F3/217 , H03F3/24 , H03F2200/331 , H03F2200/336 , H04B1/0014 , H04B1/0475 , H04B2001/0408 , H04L27/362 , H04L27/364
摘要： In a digital Cartesian modulation transmitter, an encoder generates 1-bit logic signals from in-phase and quadrature signals. A single bit digital modulator multiplexes the 1-bit logic signals for Cartesian I/Q modulation. A digital upconverter (DUG) upconverts the multiplexed 1-bit logic signal. A digital power amplifier (DPA) generates a radio frequency (RF) signal based on the upconverted signal. In a digital polar modulation transmitter, an encoder converts a magnitude signal to a first 1-bit logic signal. A digital phase modulator modulates a carrier using a phase signal to generate a second 1-bit logic signal. A DUC upconverts the second 1-bit logic signal. A first-in first-out (FIFO) memory stores the first 1-bit logic signal. A combiner combines angle information contained in the second 1-bit logic signal with magnitude information contained in the first 1-bit logic signal stored in the FIFO memory. A DPA generates an RF signal based on the combined signal.
摘要翻译：在数字笛卡尔调制发射机中，编码器从同相和正交信号中产生1位逻辑信号。单位数字调制器将1位逻辑信号复用为笛卡尔I / Q调制。数字上变频器（DUG）上变频复用的1位逻辑信号。数字功率放大器（DPA）基于上变频信号产生射频（RF）信号。在数字极化调制发射机中，编码器将幅度信号转换为第一个1位逻辑信号。数字相位调制器使用相位信号来调制载波以产生第二个1位逻辑信号。 DUC将第二个1位逻辑信号上变频。先进先出（FIFO）存储器存储第一个1位逻辑信号。组合器将包含在第二1位逻辑信号中的角度信息与存储在FIFO存储器中的第一1位逻辑信号中包含的幅度信息相结合。 DPA根据组合信号产生RF信号。

4. 发明申请

WO2005101678A2 METHOD AND APPARATUS FOR DYNAMICALLY ADJUSTING A TRANSMITTER'S IMPEDANCE AND IMPLEMENTING A HYBRID POWER AMPLIFIER THEREIN WHICH SELECTIVELY CONNECTS LINEAR AND SWITCH-MODE POWER AMPLIFIERS IN SERIES 审中-公开
标题翻译：用于动态调整发射机阻抗的方法和装置，并实现其中选择性连接线性和开关功率放大器的混合功率放大器
公开(公告)号：WO2005101678A2
公开(公告)日：2005-10-27
申请号：PCT/US2005009209
申请日：2005-03-18
申请人： INTERDIGITAL TECH CORP , HAQUE TANBIR , DEMIR ALPASLAN , KAZAKEVICH LEONID , KLAHN GERALD
发明人： HAQUE TANBIR , DEMIR ALPASLAN , KAZAKEVICH LEONID , KLAHN GERALD
IPC分类号： H03C1/62 , H03G3/30 , H04B1/04 , H04B1/46 , H04B7/005 , H04B17/00
CPC分类号： H04B1/0458 , H03F1/0261 , H03F1/56 , H03F3/24 , H03F2200/207 , H03F2200/465 , H03G3/3042 , H04W52/52 , Y02D70/14
摘要： A method and apparatus for dynamically adjusting the impedance between a transmitter's power amplifier (PA) and antenna to efficiently transfer power from the PA to the antenna. The impedance between the PA and the antenna is adjusted based on power level measurements and/or PA direct current (DC) consumption measurements, depending on whether the PA is a linear PA or a switch-mode PA. In another embodiment, a hybrid PA including a first stage linear PA and a second stage switch-mode PA is implemented in a transmitter. The hybrid PA selectively connects the output of the first stage linear PA to one of the input of the second stage switch-mode PA and the output of the hybrid PA, depending on the output power level of the first stage linear PA, the output power level of the hybrid PA, or a requirement indicated by a transmit power control (TPC) command.
摘要翻译：一种用于动态调整发射机功率放大器（PA）和天线之间的阻抗以有效地将功率从PA传输到天线的方法和装置。根据PA是线性PA还是开关模式PA，PA和天线之间的阻抗根据功率电平测量和/或PA直流（DC）消耗测量值进行调整。在另一个实施例中，包括第一级线性PA和第二级开关模式PA的混合PA实现在发射机中。混合PA根据第一级线性PA的输出功率电平选择性地将第一级线性PA的输出连接到第二级开关模式PA的输入端和混合PA的输出端之间，输出功率混合PA的电平或由发射功率控制（TPC）指令指示的要求。

5. 发明申请

WO2005002242A2 METHOD AND SYSTEM FOR COMPENSATING FOR PHASE VARIATIONS INTERMITTENTLY INTRODUCED INTO COMMUNICATION SIGNALS BY ENABLING OR DISABLING AN AMPLIFIER 审中-公开
标题翻译：通过启用或禁用放大器来互相介入通信信号的相位变化补偿方法和系统
公开(公告)号：WO2005002242A2
公开(公告)日：2005-01-06
申请号：PCT/US2004013882
申请日：2004-05-05
申请人： INTERDIGITAL TECH CORP , DEMIR ALPASLAN , KAZAKEVICH LEONID , HAQUE TANBIR
发明人： DEMIR ALPASLAN , KAZAKEVICH LEONID , HAQUE TANBIR
IPC分类号： H03G3/30 , H04B1/16 , H04Q
CPC分类号： H03G3/3052
摘要： A communication system including an amplifier, a receiver, an analog to digital converter (ADC) and an insertion phase variation compensation module. The amplifier receives a communication signal. If the amplifier is enabled, the amplifier amplifies the communication signal and outputs the amplified communication signal to the receiver. If the amplifier is disabled, the amplifier passes the communication signal to the receiver without amplifying it. The receiver outputs an analog complex signal to the ADC. The ADC outputs a digital complex signal to the insertion phase variation compensation module which counteracts the effects of a phase offset intermittently introduced into the communication signal when the amplifier is enabled or disabled.
摘要翻译：一种包括放大器，接收器，模数转换器（ADC）和插入相位变化补偿模块的通信系统。放大器接收通信信号。如果放大器使能，放大器放大通信信号，并将放大的通信信号输出到接收器。如果放大器被禁用，放大器将通信信号传递到接收器而不进行放大。接收器向ADC输出模拟复合信号。 ADC将数字复合信号输出到插入相位变化补偿模块，该模块抵消当放大器使能或禁用时间断地引入通信信号的相位偏移的影响。

6. 发明申请

WO2005006567A3 DIGITAL BASEBAND RECEIVER INCLUDING A HIGH PASS FILTER COMPENSATION MODULE FOR SUPPRESSING GROUP DELAY VARIATION DISTORTION INCURRED DUE TO ANALOG HIGH PASS FILTER DEFICIENCIES 审中-公开
标题翻译：数字基带接收器，包括高通滤波器补偿模块，用于抑制模拟高通滤波器缺陷引起的组延迟变差失真
公开(公告)号：WO2005006567A3
公开(公告)日：2006-03-30
申请号：PCT/US2004015800
申请日：2004-05-20
申请人： INTERDIGITAL TECH CORP , DEMIR ALPASLAN , KAZAKEVICH LEONID , HAQUE TANBIR
发明人： DEMIR ALPASLAN , KAZAKEVICH LEONID , HAQUE TANBIR
IPC分类号： H03D3/00
CPC分类号： H03D3/009
摘要： A digital baseband (DBB) radio frequency (RF) receiver (105) includes a digital high pass filter compensation (HPFC) module (205) used to suppress group delay variation distortion caused by using low cost analog high pass filters (HPFO) (175A, 175B, 185A, 185B) in the receiver. The digital HPFC module (205) reduces a cutoff frequency, established by the HPFs for the real and imaginary signal component frequency domain responses by providing a first compensation signal having a first predetermined value (K1). The digital HPFC module adjusts the gain of the high pass response of the real and imaginary signal component frequency domains by providing a second compensation signal having a second predetermined value (K2).
摘要翻译：数字基带（RFB）射频（RF）接收机（105）包括数字高通滤波器补偿（HPFC）模块（205），用于抑制使用低成本模拟高通滤波器（HPFO）（175A）引起的群延迟变化失真，175B，185A，185B）。数字HPFC模块（205）通过提供具有第一预定值（K1）的第一补偿信号来减少由HPF为实信号分量和虚信号分量频域响应建立的截止频率。数字HPFC模块通过提供具有第二预定值（K2）的第二补偿信号来调整实信号分量频域和虚信号分量频域的高通响应的增益。

7. 发明申请

WO2005002063A3 METHOD AND SYSTEM FOR SUPPRESSING CARRIER LEAKAGE 审中-公开
标题翻译：用于抑制载波泄漏的方法和系统
公开(公告)号：WO2005002063A3
公开(公告)日：2005-10-13
申请号：PCT/US2004013486
申请日：2004-04-30
申请人： INTERDIGITAL TECH CORP , DEMIR ALPASLAN , KAZAKEVICH LEONID , HAQUE TANBIR
发明人： DEMIR ALPASLAN , KAZAKEVICH LEONID , HAQUE TANBIR
IPC分类号： H03C3/40 , H04B1/30 , H04L27/00 , H04L27/04
CPC分类号： H04B1/30 , H03C3/406 , H04L2027/0016 , H04L2027/0018
摘要： A method and system for determining at least one DC offset compensation value used to suppress carrier leakage occurring on real (184) and imaginary (186) signal paths in an analog radio transmitter when a significant temperature change (168) in the transmitter is detected. At least one DC offset signal having a level that corresponds to the at least one DC offset compensation value is provided to a digital DC offset compensation module which adjusts the DC level of at least one of the real and imaginary signal paths (184 and 186).
摘要翻译：一种用于当检测到发射机中的显着温度变化（168）时，确定至少一个DC偏移补偿值的方法和系统，所述至少一个DC偏移补偿值用于抑制在模拟无线电发射机中实际（184）和虚（186）信号路径上发生的载波泄漏。具有对应于至少一个DC偏移补偿值的电平的至少一个DC偏移信号被提供给数字DC偏移补偿模块，其调整实信号路径和虚信号路径（184和186）中的至少一个的DC电平，。

8. 发明申请

WO2006026249A3 METHOD AND APPARATUS FOR PROCESSING MULTIPLE WIRELESS COMMUNICATION SERVICES 审中-公开
标题翻译：用于处理多个无线通信服务的方法和装置
公开(公告)号：WO2006026249A3
公开(公告)日：2006-06-08
申请号：PCT/US2005029858
申请日：2005-08-22
申请人： INTERDIGITAL TECH CORP , AYCIN ERICA ELLYN , KLAHN GERARD , HAQUE TANBIR , TYRA FRYDERYK , HAIM JOHN W
发明人： AYCIN ERICA ELLYN , KLAHN GERARD , HAQUE TANBIR , TYRA FRYDERYK , HAIM JOHN W
IPC分类号： H04B1/26
CPC分类号： H04B1/1036 , H04B1/0003 , H04B17/336 , H04B17/382
摘要： A method and apparatus for processing multiple wireless communication services in a receiver (100). A receiver (100) receives more than one wireless communication service simultaneously via a wireless interface. Each service is transmitted via a different carrier frequency band. The multiple received carrier signals are down-converted to an intermediate frequency (IF) band using a mixer (110, 116) and a local oscillator (LO). The LO and sampling frequencies are adjusted such that the converted IF band signals of the input signals are spectrally adjacent or overlapping each other to some degree. SINAD of the services is measured at each of a plurality of spectrally overlapping conditions. The LO frequencies and the sampling frequency are then adjusted based on the SINAD measurement results.
摘要翻译：一种用于在接收机（100）中处理多个无线通信服务的方法和装置。接收机（100）经由无线接口同时接收多于一个的无线通信服务。每个服务通过不同的载波频带传输。使用混频器（110,116）和本地振荡器（LO）将多个接收的载波信号下变频到中频（IF）频带。调整LO和采样频率使得输入信号的转换的IF频带信号在某种程度上彼此频谱相邻或重叠。在多个频谱重叠条件中的每一个处测量服务的SINAD。然后根据SINAD测量结果调整LO频率和采样频率。

9. 发明专利

IL274994D0 Network initiated on-demand zero-energy paging method and apparatus 未知
公开(公告)号：IL274994D0
公开(公告)日：2020-07-30
申请号：IL27499420
申请日：2020-05-29
申请人： INTERDIGITAL PATENT HOLDINGS INC , HAQUE TANBIR , PRAGADA RAVIKUMAR V , BALASUBRAMANIAN ANANTHARAMAN , DEMIR ALPASLAN
发明人： HAQUE TANBIR , PRAGADA RAVIKUMAR V , BALASUBRAMANIAN ANANTHARAMAN , DEMIR ALPASLAN
IPC分类号： H04W52/02
摘要： A wireless transmit/receive unit (WTRU) may include one or more antennas and a first transceiver operatively coupled to the antennas. The one or more antennas and the first transceiver may be configured to receive a first signal from a network using zero energy from the WTRU. The one or more antennas and the first transceiver may be further configured to extract energy from the first signal. The first transceiver may be further configured to examine a separation between energy threshold events to decode an energy signature of the first signal. The first transceiver may be further configured to activate a second transceiver operatively coupled to the one or more antennas if the decoded energy signature matches a stored energy signature, wherein the second transceiver is powered by the WTRU. The one or more antennas and the second transceiver may be configured to receive a second signal from the network.

10. 发明申请

WO2012037236A3 DYNAMIC BANDWIDTH PROVISIONING IN FREQUENCY DIVISION DUPLEX SYSTEMS 审中-公开
标题翻译：频分双工系统动态带宽分配
公开(公告)号：WO2012037236A3
公开(公告)日：2012-08-02
申请号：PCT/US2011051574
申请日：2011-09-14
申请人： INTERDIGITAL PATENT HOLDINGS , CHINCHOLI AMITH V , DEMIR ALPASLAN , HAQUE TANBIR
发明人： CHINCHOLI AMITH V , DEMIR ALPASLAN , HAQUE TANBIR
IPC分类号： H04L5/14 , H04L5/00 , H04L27/00 , H04W72/04
CPC分类号： H04W72/0446 , H04B7/00 , H04J1/00 , H04L5/001 , H04L5/0023 , H04L5/0032 , H04L5/0044 , H04L5/0064 , H04L5/0071 , H04L5/14 , H04L5/143 , H04L27/0006 , H04L43/16 , H04W72/0413 , H04W72/042
摘要： A method and apparatus are described that provides flexible spectrum usage by using a paired frequency division duplex (FDD) spectrum to enable dynamic access in television white space (TVWS), sub-leased spectrum or unlicensed spectrum, (e.g., industrial, scientific and medical (ISM) bands), in a femto cell environment or the like. Elastic FDD (E-FDD) enables femto cell operation in TVWS, sub-leased spectrum and/or unlicensed spectrum, either simultaneously with licensed spectrum or as an alternate channel to licensed spectrum. E-FDD enables dynamic asymmetric bandwidth allocation for uplink (UL) and downlink (DL) in FDD, and enables variable duplex spacing, (i.e., using FDD with minimum duplex spacing between DL and UL spectrum, or, using hybrid-FDD, (FDD in a time duplexed fashion), when a spectrum gap between the UL and DL spectrum is below a certain minimum threshold. Additionally, the signaling enhancements to implement E-FDD are also provided.
摘要翻译：描述了一种方法和装置，其通过使用成对的频分双工（FDD）频谱来实现灵活的频谱使用，以实现电视空白（TVWS），次租用频谱或非许可频谱（例如工业，科学和医学）（ISM）频带），在毫微微小区环境等中。弹性FDD（E-FDD）使得能够在TVWS，子租用频谱和/或非许可频谱中的毫微微小区操作，或者与许可频谱同时或作为许可频谱的备用信道。 E-FDD实现了FDD中的上行链路（UL）和下行链路（DL）的动态非对称带宽分配，并且实现了可变双工间隔（即，使用DL和UL频谱之间具有最小双工间隔的FDD，或者使用混合FDD， FDD以时间双工方式），当UL和DL频谱之间的频谱间隔低于某个最小阈值时，还提供了实现E-FDD的信令增强。

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