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公开(公告)号：US08331499B2
公开(公告)日：2012-12-11
申请号：US12428020
申请日：2009-04-22
Applicant: David Chappaz
Inventor： David Chappaz
IPC: H04L27/01
CPC classification number: H04L25/03038 , H04L1/0625 , H04L1/0643
Abstract: A receiver for a telecommunications system in which a data signal is transmitted using a closed loop transmit diversity system and a pilot signal is transmitted using a space time transmit diversity system, the receiver comprising an equalizer for equalising a signal received by the receiver, wherein the equalizer is configured to produce an equalized signal in which effects caused by a propagation channel through which the data signal was transmitted are alleviated, the receiver further comprising a processor for processing the equalized received signal to recover the pilot signal.
Abstract translation: 使用空时发射分集系统发送用于使用闭环发射分集系统和导频信号发送数据信号的电信系统的接收机，所述接收机包括用于均衡由接收机接收的信号的均衡器，其中， 均衡器被配置为产生均衡信号，其中减轻了由发送数据信号的传播信道造成的影响，接收机还包括处理器，用于处理均衡的接收信号以恢复导频信号。
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公开(公告)号：US20110159830A1
公开(公告)日：2011-06-30
申请号：US12934189
申请日：2009-05-29
Applicant: David Chappaz
Inventor： David Chappaz
IPC: H04W24/00
CPC classification number: H04L25/0212 , H04B1/7117 , H04B1/712 , H04L25/0208 , H04L25/0242
Abstract: A receiver (10) for a telecommunications system, the receiver (10) comprising a channel impulse response estimator (12) for producing an initial estimated channel impulse response of an overall multipath channel of the telecommunications system and a processing unit (16) for calculating, from the initial estimated channel impulse response, an estimate of the gain of each component of a propagation channel impulse response represented by the initial estimated channel impulse response.
Abstract translation: 一种用于电信系统的接收机（10），所述接收机（10）包括用于产生所述电信系统的整个多径信道的初始估计信道脉冲响应的信道脉冲响应估计器（12）和用于计算 从初始估计的信道脉冲响应，估计由初始估计的信道脉冲响应表示的传播信道脉冲响应的每个分量的增益。
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公开(公告)号：US08699981B2
公开(公告)日：2014-04-15
申请号：US12934189
申请日：2009-05-29
Applicant: David Chappaz
Inventor： David Chappaz
IPC: H04W24/00
CPC classification number: H04L25/0212 , H04B1/7117 , H04B1/712 , H04L25/0208 , H04L25/0242
Abstract: A receiver (10) for a telecommunications system, the receiver (10) comprising a channel impulse response estimator (12) for producing an initial estimated channel impulse response of an overall multipath channel of the telecommunications system and a processing unit (16) for calculating, from the initial estimated channel impulse response, an estimate of the gain of each component of a propagation channel impulse response represented by the initial estimated channel impulse response.
Abstract translation: 一种用于电信系统的接收机（10），所述接收机（10）包括用于产生所述电信系统的整个多径信道的初始估计信道脉冲响应的信道脉冲响应估计器（12）和用于计算 从初始估计的信道脉冲响应，估计由初始估计的信道脉冲响应表示的传播信道脉冲响应的每个分量的增益。
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公开(公告)号：US20110065382A1
公开(公告)日：2011-03-17
申请号：US12784125
申请日：2010-05-20
Applicant: James Digby Yarlet Collier , Andrei Popescu , David Chappaz
Inventor： James Digby Yarlet Collier , Andrei Popescu , David Chappaz
IPC: H04B5/00
CPC classification number: H04M1/72572 , H04B1/406 , H04M1/7253 , H04M2250/02 , H04M2250/06 , H04M2250/10 , H04W52/029 , Y02D70/142 , Y02D70/144 , Y02D70/164 , Y02D70/40
Abstract: Receiving a Wi-Fi radio signal using a Bluetooth receiver architecture. Also, adapting a Wi-Fi receiver architecture to constrain a received radio signal to less than the bandwidth of a conveyed Wi-Fi signal for subsequent processing purposes.
Abstract translation: 使用蓝牙接收机架构接收Wi-Fi无线电信号。 而且，为了随后的处理目的，使Wi-Fi接收机架构适应于将接收到的无线电信号约束到小于传送的Wi-Fi信号的带宽。
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公开(公告)号：US08774857B2
公开(公告)日：2014-07-08
申请号：US12784125
申请日：2010-05-20
Applicant: James Digby Yarlet Collier , Andrei Popescu , David Chappaz
Inventor： James Digby Yarlet Collier , Andrei Popescu , David Chappaz
CPC classification number: H04M1/72572 , H04B1/406 , H04M1/7253 , H04M2250/02 , H04M2250/06 , H04M2250/10 , H04W52/029 , Y02D70/142 , Y02D70/144 , Y02D70/164 , Y02D70/40
Abstract: Receiving a Wi-Fi radio signal using a Bluetooth receiver architecture. Also, adapting a Wi-Fi receiver architecture to constrain a received radio signal to less than the bandwidth of a conveyed Wi-Fi signal for subsequent processing purposes.
Abstract translation: 使用蓝牙接收机架构接收Wi-Fi无线电信号。 而且，为了随后的处理目的，使Wi-Fi接收机架构适应于将接收到的无线电信号约束到小于传送的Wi-Fi信号的带宽。
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Patent Agency Ranking
6.发明授权Process and device for estimating the speed of movement of a mobile terminal of a wireless communication system 有权用于估计无线通信系统的移动终端的移动速度的过程和设备公开(公告)号：US07254369B2
公开(公告)日：2007-08-07
申请号：US10233055
申请日：2002-08-30
Applicant: David Chappaz
Inventor： David Chappaz
CPC classification number: H04L25/0212 , G01S11/026
Abstract: Estimating the speed of movement of a mobile terminal includes estimating the impulse response of the transmission channel at a given instant, and estimating the time derivative of the estimated impulse response. Estimating the speed also includes determining of a ratio of the energy of the estimated impulse response to the energy of the estimated time derivative.
Abstract translation: 估计移动终端的移动速度包括估计在给定时刻的传输信道的脉冲响应，以及估计估计的脉冲响应的时间导数。 估计速度还包括确定估计的脉冲响应的能量与估计的时间导数的能量的比率。
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7.发明授权Process and device for estimating the successive values of digital symbols, in particular for the equalization of an information transmission channel in mobile telephony 有权用于估计数字符号的连续值的过程和装置，特别是用于移动电话中的信息传输信道的均衡公开(公告)号：US07054392B2
公开(公告)日：2006-05-30
申请号：US10006995
申请日：2001-12-03
Applicant: David Chappaz
Inventor： David Chappaz
CPC classification number: H04L25/03197 , H04L25/03191
Abstract: A process for estimating successive values of digital symbols which can each take M different possible values, on the basis of the successive values of digital samples each of which results from the combination of at most L successive symbols. This process includes a stage by stage progression through a trellis of the Viterbi type with Mk states, with k being less than or equal to L−1. All the stages are respectively provided with aggregate metrics.
Abstract translation: 基于由最多L个连续符号的组合产生的数字样本的连续值，估计可分别取M个不同可能值的数字符号的连续值的处理。 该过程包括通过具有M
状态的维特比类型的网格逐级进行，其中k小于或等于L-1。 所有阶段分别提供了聚合指标。 -
公开(公告)号：US08503571B2
公开(公告)日：2013-08-06
申请号：US12992867
申请日：2009-05-14
Applicant: David Chappaz
Inventor： David Chappaz
IPC: H04L27/00
CPC classification number: H04L27/2032 , H04L27/2017
Abstract: The present invention provides a single modulator capable of transmitting an input according to a first and a second modulation technique. The first modulation technique represents changes in the input using a first set of carrier waveform parameters, such as phase variations, whereas the second modulation technique represents changes in the input using a second set of carrier waveform parameters, such as alternative phase variations. The present invention performs both modulation techniques by expressing the 10 second set of carrier waveform parameters as a subset of the first set of carrier waveform parameters. In a preferred embodiment, the first and second modulation techniques comprise the π/2-offset 2PSK (a good approximation of differential GMSK) and 3π/8-offset 8PSK (also known as EDGE) modulation techniques.
Abstract translation: 本发明提供一种能够根据第一和第二调制技术发送输入的单个调制器。 第一调制技术使用第一组载波波形参数（例如相位变化）来表示输入的变化，而第二调制技术使用第二组载波波形参数（例如替代相位变化）来表示输入中的变化。 本发明通过将第10组载波波形参数表示为第一组载波波形参数的子集来执行调制技术。 在优选实施例中，第一和第二调制技术包括pi / 2偏移2PSK（差分GMSK的良好近似）和3pi / 8偏移8PSK（也称为EDGE）调制技术。
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公开(公告)号：US20110122970A1
公开(公告)日：2011-05-26
申请号：US12992867
申请日：2009-05-14
Applicant: David Chappaz
Inventor： David Chappaz
CPC classification number: H04L27/2032 , H04L27/2017
Abstract: The present invention provides a single modulator capable of transmitting an input according to a first and a second modulation technique. The first modulation technique represents changes in the input using a first set of carrier waveform parameters, such as phase variations, whereas the second modulation technique represents changes in the input using a second set of carrier waveform parameters, such as alternative phase variations. The present invention performs both modulation techniques by expressing the 10 second set of carrier waveform parameters as a subset of the first set of carrier waveform parameters. In a preferred embodiment, the first and second modulation techniques comprise the π/2-offset 2PSK (a good approximation of differential GMSK) and 3π/8-offset 8PSK (also known as EDGE) modulation techniques.
Abstract translation: 本发明提供一种能够根据第一和第二调制技术发送输入的单个调制器。 第一调制技术使用第一组载波波形参数（例如相位变化）来表示输入的变化，而第二调制技术使用第二组载波波形参数（例如替代相位变化）来表示输入中的变化。 本发明通过将第10组载波波形参数表示为第一组载波波形参数的子集来执行调制技术。 在优选实施例中，第一和第二调制技术包括＆pgr / 2-offset 2PSK（差分GMSK的良好近似）和3＆pgr / / 8偏移8PSK（也称为EDGE）调制技术。
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公开(公告)号：US06990142B2
公开(公告)日：2006-01-24
申请号：US09855734
申请日：2001-05-15
Applicant: David Chappaz
Inventor： David Chappaz
CPC classification number: H04L25/0202
Abstract: A first estimate is made of the impulse response of the channel considered as a whole, then this first estimate is corrected independently of the information transmitted for obtaining a corrected final estimate of the impulse response of the channel. This is done by taking account of the fact that the impulse response of the sender and the impulse response of the receiver are known.
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