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公开(公告)号：US09825788B2
公开(公告)日：2017-11-21
申请号：US15173585
申请日：2016-06-03
Applicant: NXP B.V.
Inventor： Remco Cornelis Herman Van De Beek , Liang Zhang , LiSong Feng , Juhui Li , Alan Chang
CPC classification number: H04L25/06 , G06K19/0723 , H03D1/18 , H04L27/00 , H04L27/06
Abstract: The present disclosure relates in general to devices, systems and methods for wireless communication, and in particular to communication using a proximity integrated circuit card (PICC). Example embodiments include a circuit (100) for a PICC, the circuit comprising an input stage (101), a decoding module (106) and a bias adjustment module (117), the bias adjustment module (117) configured to receive an output code from the decoding module and provide a bias adjustment signal to the input stage (101), the bias adjustment module (117) configured to iteratively tune the bias adjustment signal based on a measurement of the output code, with successive steps tuning the bias adjustment signal by a smaller amount until the output code is within a decoding range.
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公开(公告)号：US09838197B2
公开(公告)日：2017-12-05
申请号：US15094618
申请日：2016-04-08
Applicant: NXP B.V.
Inventor： Juhui Li , Ghiath Al-kadi , Massimo Ciacci
IPC: H04L27/22 , H04L7/033 , H04L27/233 , H04L7/00
CPC classification number: H04L7/033 , H04L1/0079 , H04L7/0016 , H04L27/2331
Abstract: A system and module for, and a method of correcting, memory misalignment in a phase shift keying receiver is disclosed. Embodiments include a system having: an analog front end for receiving a demodulated signal having a preamble portion, and for generating a digital register input signal including a received preamble portion; a finite state machine for selecting a memory address of the demodulated signal based on the received preamble portion; a preamble memory for storing all possible preambles contained within the demodulated signal and for supplying a selected preamble memory output corresponding to the selected memory address; and a memory alignment module configured to compare phase information of symbols of the preamble portion and preamble phase information of symbols of the selected preamble memory output. This system checks that the preamble portion of the register input signal aligns with the selected preamble memory output and makes corrections when necessary.
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Patent Agency Ranking
公开(公告)号：US20160301523A1
公开(公告)日：2016-10-13
申请号：US15094618
申请日：2016-04-08
Applicant: NXP B.V.
Inventor： Juhui Li , Ghiath Al-kadi , Massimo Ciacci
CPC classification number: H04L7/033 , H04L1/0079 , H04L7/0016 , H04L27/2331
Abstract: A system and module for, and a method of correcting, memory misalignment in a phase shift keying receiver is disclosed. Embodiments include a system having: an analog front end for receiving a demodulated signal having a preamble portion, and for generating a digital register input signal including a received preamble portion; a finite state machine for selecting a memory address of the demodulated signal based on the received preamble portion; a preamble memory for storing all possible preambles contained within the demodulated signal and for supplying a selected preamble memory output corresponding to the selected memory address; and a memory alignment module configured to compare phase information of symbols of the preamble portion and preamble phase information of symbols of the selected preamble memory output. This system checks that the preamble portion of the register input signal aligns with the selected preamble memory output and makes corrections when necessary.
Abstract translation: 公开了一种用于相移键控接收机中的存储器未对准的系统和模块，以及校正存储器未对准的方法。 实施例包括具有：模拟前端，用于接收具有前同步码部分的解调信号，并用于产生包括接收到的前导码部分的数字寄存器输入信号; 有限状态机，用于基于所接收的前同步码部分选择解调信号的存储器地址; 前导码存储器，用于存储包含在解调信号内的所有可能的前导码，并用于提供对应于所选存储器地址的所选择的前同步码存储器输出; 以及存储器对准模块，被配置为比较所述前导码部分的符号的相位信息和所选择的前导码存储器输出的符号的前导码相位信息。 该系统检查寄存器输入信号的前导码部分与所选择的前同步码存储器输出对齐，并在必要时进行校正。
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公开(公告)号：US09992012B2
公开(公告)日：2018-06-05
申请号：US15267099
申请日：2016-09-15
Applicant: NXP B.V.
Inventor： Adaickalavan Meiyappan , Juhui Li , Ghiath Al-Kadi , Massimo Ciacci
CPC classification number: H04L7/06 , H04L25/03006 , H04L25/06 , H04L25/066 , H04L25/4923 , H04L27/06 , H04L43/087
Abstract: A differential detector for a receiver and a method of detecting the value of symbols of a signal is disclosed. In particular, a detector comprising: an analog to digital converter for sampling samples from symbols of a signal; a differentiator configured to differentiate the samples with a transfer function to produce a differentiated series of samples for each symbol; and a decision device configured to determine the value of each symbol by comparing values of the differentiated series of samples with boundary condition values.
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公开(公告)号：US20160359648A1
公开(公告)日：2016-12-08
申请号：US15173585
申请日：2016-06-03
Applicant: NXP B.V.
Inventor： Remco Cornelis Herman Van De Beek , Liang Zhang , LiSong Feng , Juhui Li , Alan Chang
CPC classification number: H04L25/06 , G06K19/0723 , H03D1/18 , H04L27/00 , H04L27/06
Abstract: The present disclosure relates in general to devices, systems and methods for wireless communication, and in particular to communication using a proximity integrated circuit card (PICC). Example embodiments include a circuit (100) for a PICC, the circuit comprising an input stage (101), a decoding module (106) and a bias adjustment module (117), the bias adjustment module (117) configured to receive an output code from the decoding module and provide a bias adjustment signal to the input stage (101), the bias adjustment module (117) configured to iteratively tune the bias adjustment signal based on a measurement of the output code, with successive steps tuning the bias adjustment signal by a smaller amount until the output code is within a decoding range.
Abstract translation: 本公开一般涉及用于无线通信的设备，系统和方法，特别是涉及使用接近集成电路卡（PICC）的通信。 示例性实施例包括用于PICC的电路（100），该电路包括输入级（101），解码模块（106）和偏置调整模块（117），偏置调整模块（117）被配置为接收输出代码 从所述解码模块向所述输入级（101）提供偏置调整信号，所述偏置调整模块（117）被配置为基于所述输出代码的测量对所述偏置调整信号进行迭代调谐，所述偏置调整模块 直到输出代码在解码范围内为止。
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公开(公告)号：US09628062B1
公开(公告)日：2017-04-18
申请号：US15180092
申请日：2016-06-13
Applicant: NXP B.V.
Inventor： Van-Loi Le , Tae-Hyoung Kim , Juhui Li , Alan Yeow Khai Chang
IPC: H03K3/289 , H03K5/19 , H03K3/3562
CPC classification number: H03K5/19 , H03K3/012 , H03K3/35625
Abstract: A 24-transistor D flip-flop circuit operates in a sampling mode when a clock signal has a first voltage state, and a holding mode when the clock signal has a second voltage state. The flip-flop circuit includes an internal control node coupled to a reference voltage node by way of a transistor controllable to couple the internal control node to the reference voltage node when the clock signal has the second voltage state. The flip-flop has very low power dissipation as it includes a 4-transistor change-sense component to detect changes in input data. The change-sense component is coupled in series with the transistor and receives an indication of an input voltage state of the flip-flop circuit and an indication of an output voltage state of the flip-flop circuit, and inhibits toggling of the internal control node if the indicated input voltage state and the indicated output voltage state are the same.
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公开(公告)号：US20170078085A1
公开(公告)日：2017-03-16
申请号：US15267099
申请日：2016-09-15
Applicant: NXP B.V.
Inventor： Adaickalavan Meiyappan , Juhui Li , Ghiath Al-Kadi , Massimo Ciacci
CPC classification number: H04L7/06 , H04L25/03006 , H04L25/06 , H04L25/066 , H04L25/4923 , H04L27/06 , H04L43/087
Abstract: A differential detector for a receiver and a method of detecting the value of symbols of a signal is disclosed. In particular, a detector comprising: an analog to digital converter (110) for sampling samples (232) from symbols (234) of a signal (230); a differentiator (130) configured to differentiate the samples with a transfer function to produce a differentiated series of samples for each symbol; and a decision device configured to determine the value of each symbol by comparing values of the differentiated series of samples with boundary condition values.
Abstract translation: 公开了一种用于接收机的差分检测器和检测信号符号值的方法。 特别地，一种检测器，包括：模数转换器（110），用于从信号（230）的符号（234）中采样采样（232）; 一个微分器（130），被配置成用传递函数来区分样本以产生每个符号的差分系列样本; 以及判定装置，被配置为通过将所述差分的一系列样本的值与边界条件值进行比较来确定每个符号的值。
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