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公开(公告)号：US10826649B1
公开(公告)日：2020-11-03
申请号：US16261293
申请日：2019-01-29
Applicant: Marvell International Ltd.
Abstract: A communication device determines that a data rate of a data packet exceeds a threshold, and in response, lowers a processing speed of an equalizer device to prevent a buffer from overflowing. The buffer stores outputs generated by the equalizer device. A forward error correction code decoder device of the communication device processes outputs of the equalizer device corresponding to the data packet to generate decoded information corresponding to the data packet. The communication device transmits an acknowledgment packet to acknowledge the data packet such that transmission of the acknowledgment packet begins within required time period, defined by a communication protocol, after an end of the data packet.
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公开(公告)号：US09188678B1
公开(公告)日：2015-11-17
申请号：US14165901
申请日：2014-01-28
Applicant: Marvell International Ltd.
Inventor： Xiangdong Jin , Mao Yu , Jianwei Bei , Xiaotao Xu
CPC classification number: G01S19/254 , G01S19/30
Abstract: In accordance with the teachings described herein, system and methods are provided for a GPS PRN code interpolation scheme with a reduced memory requirement. An example GPS receiver system may include a memory, a local PRN code generator, and an interpolator. The memory may be used to store GPS PRN code received from a global positioning satellite. The local PRN code generator generates a replica PRN code having a repeating code that includes at least a first epoch and a second epoch. The interpolator determines an offset point in the first epoch of replica PRN code and interpolates the replica PRN code at a predetermined sample rate to generate an interpolated replica PRN code for use in correlating with the GPS PRN code.
Abstract translation: 根据本文所述的教导，为具有减少的存储器要求的GPS PRN码插值方案提供了系统和方法。 示例性GPS接收机系统可以包括存储器，本地PRN码发生器和内插器。 存储器可以用于存储从全球定位卫星接收的GPS PRN码。 本地PRN代码生成器生成具有至少包括第一纪元和第二纪元的重复代码的副本PRN代码。 内插器确定复制PRN码的第一纪元中的偏移点，并以预定采样率内插副本PRN码，以产生用于与GPS PRN码相关的内插副本PRN码。
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3.发明授权公开(公告)号：US08842571B1
公开(公告)日：2014-09-23
申请号：US14186997
申请日：2014-02-21
Applicant: Marvell International Ltd.
Inventor： Mao Yu , Hongyuan Zhang
CPC classification number: H04L43/0852 , H04J3/0635 , H04L27/2662
Abstract: Methods, systems, and apparatus are described for processing a first field of a preamble of a data unit received by a communication device, the preamble including a second field that follows the first field in time. The embodiments described further include determining an estimated start of the second field of the preamble based on the processing of the first field, processing the second field of the preamble based on the estimated start of the second field, and determining an estimated time of arrival of the data unit at the communication device based on the processing of the second field of the preamble.
Abstract translation: 描述了用于处理由通信设备接收的数据单元的前导码的第一字段的方法，系统和装置，该前导码包括在第一字段之后的第二字段。 所描述的实施例还包括基于第一场的处理来确定前导码的第二字段的估计开始，基于估计的第二字段的开始来处理前导码的第二字段，以及确定估计的到达时间 基于前导码的第二字段的处理，在通信设备处的数据单元。
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公开(公告)号：US09246668B1
公开(公告)日：2016-01-26
申请号：US14205594
申请日：2014-03-12
Applicant: MARVELL INTERNATIONAL LTD.
Inventor： Mao Yu , Ming Ta Lin , Sergey Timofeev
CPC classification number: H04L7/0029 , H04L27/2662 , H04L27/2678
Abstract: Systems, methods, and other embodiments associated with unified control of timing recovery and packet processing are described. According to one embodiment, a method for performing unified control of timing recovery and packet processing is provided. The method includes sampling a received signal according to an ADC timing signal to produce a sequence of samples. The received signal corresponds to a packet and was transmitted according to a transmit timing signal. The method includes determining a phase offset between the ADC timing signal and the transmit timing signal and identifying, based, at least in part, on the phase offset, a data portion of the sequence of samples that contains data encoded in the received signal. A re-generated sample sequence that adjusts the data portion based on the phase offset is calculated.
Abstract translation: 描述了与定时恢复和分组处理的统一控制相关联的系统，方法和其他实施例。 根据一个实施例，提供了一种用于执行定时恢复和分组处理的统一控制的方法。 该方法包括根据ADC定时信号对接收到的信号进行采样以产生采样序列。 接收到的信号对应于分组，并根据发送定时信号发送。 该方法包括确定ADC定时信号和发射定时信号之间的相位偏移，并且至少部分地基于相位偏移来识别包含在接收信号中编码的数据的采样序列的数据部分。 计算基于相位偏移来调整数据部分的重新生成的采样序列。
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公开(公告)号：US09055481B1
公开(公告)日：2015-06-09
申请号：US14157895
申请日：2014-01-17
Applicant: MARVELL INTERNATIONAL LTD.
Inventor： Mao Yu
CPC classification number: H04W24/10 , H04L1/0072 , H04L1/08 , H04L47/10 , H04W74/0808
Abstract: In a method for detecting a duplicate packet in a signal, the signal is received at a communication device. A carrier sense (CS) operation is performed, for each of a plurality of frequency bands, on the received signal. Performing a CS operation includes performing a respective autocorrelation on the received signal in a respective one of the plurality of frequency bands. A clear channel assessment (CCA) operation is performed, for each of the plurality of frequency bands, on the received signal. Performing a CCA operation on the received signal includes measuring a respective amount of energy in a respective one of the plurality of frequency bands. Whether the received signal corresponds to a packet duplicated in each of the plurality of frequency bands is determined based on the CS operations and the CCA operations.
Abstract translation: 在用于检测信号中的重复分组的方法中，在通信设备处接收信号。 对于接收到的信号，针对多个频带中的每一个执行载波侦听（CS）操作。 执行CS操作包括对多个频带中的相应一个频带中的接收信号执行相应的自相关。 对于接收到的信号，针对多个频带中的每一个执行清晰的信道评估（CCA）操作。 对接收到的信号执行CCA操作包括测量多个频带中的相应一个频带中的相应的能量。 基于CS操作和CCA操作确定接收到的信号是否对应于在多个频带中的每一个中复制的分组。
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Patent Agency Ranking
6.发明授权Apparatus and method for writing and reading samples of a signal to and from a memory 有权将信号的样本写入和读取存储器的装置和方法公开(公告)号：US08922428B1
公开(公告)日：2014-12-30
申请号：US13968791
申请日：2013-08-16
Applicant: Marvell International Ltd.
Inventor： Chi-Yuen Young , Mao Yu , Xiangdong Jin
IPC: G01S19/35
Abstract: A system includes a memory with columns and rows. A sampler samples a first portion of a signal during first periods to obtain sets of samples, respectively. The sets of samples include a first set having first samples and a second set having second samples. A first controller writes each set in the sets of samples in a respective one of the columns. The first controller writes: the first samples in a first column such that each of the first samples is stored in a respective one of the rows; the second samples in a second column such that each of the second samples is stored in a respective one of the rows; and the second samples in the second column subsequent to writing the first samples in the first column. A second controller reads third samples stored in a first row and fourth samples stored in a second row.
Abstract translation: 系统包括具有列和行的存储器。 采样器在第一时段期间对信号的第一部分进行采样，以分别获得样本集。 这些样本集包括具有第一样本的第一组和具有第二样本的第二组。 第一个控制器将各组样本中的每一组写入相应的一列。 第一控制器写入：第一列中的第一样本，使得每个第一样本存储在相应的一行中; 第二列中的第二样本，使得每个第二样本存储在相应的一行中; 以及在第一列中写入第一样本之后的第二列中的第二样本。 第二控制器读取存储在第一行中的第三样本和存储在第二行中的第四样本。
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公开(公告)号：US10820261B1
公开(公告)日：2020-10-27
申请号：US16441283
申请日：2019-06-14
Applicant: Marvell International Ltd.
Inventor： Chor-Teck Law , Hongyuan Zhang , Sergey Timofeev , Mao Yu
Abstract: A radiofrequency system includes a plurality of transceivers providing a plurality of channels, and circuitry configured to perform off-channel functions. A first subset of channels performs radiofrequency communication functions, and a second subset of channels provides signals for the off-channel functions. The first subset of channels may be provided by a first subset of transceivers, and the second subset of channels may be provided by a second subset of transceivers. A spectrum sensing unit may select between the first subset of transceivers and the second subset of transceivers. The circuitry configured to perform the off-channel functions may use the second subset of the plurality of channels to perform neighborhood discovery. The circuitry configured to perform the off-channel functions may scan available communications channels for interference, storing identifications of interference-free channels, and, upon detection of interference on a channel in use, may select one of the interference-free channels.
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8.发明授权公开(公告)号：US09966972B1
公开(公告)日：2018-05-08
申请号：US14829257
申请日：2015-08-18
Applicant: Marvell International Ltd.
CPC classification number: H03M13/1128 , H03M13/353 , H03M13/3746 , H03M13/3753 , H03M13/616 , H04L1/005 , H04L1/0051
Abstract: Systems and methods described herein provides a method for dynamically allocating an iteration number for a decoder. The method includes receiving, at an input buffer, an input signal including at least one data packet. The method further includes calculating a first iteration number for decoding the at least one data packet. The method further includes monitoring at least one of available space of the input buffer and available decoding time for the at least one data packet. The method further includes dynamically adjusting the first iteration number to a second iteration number based on the available space or the available decoding time to continue decoding the at least one data packet.
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公开(公告)号：US11258555B1
公开(公告)日：2022-02-22
申请号：US16663929
申请日：2019-10-25
Applicant: Marvell International Ltd.
Inventor： Tong Ji , Yen-Kai Chen , Sai Man Simon Wong , Mao Yu
IPC: H04L5/00
Abstract: Embodiments described herein provide systems for processing high efficiency SIGB (HE-SIGB) symbols and extracting resource unit (RU) information in down link orthogonal frequency division multiple access (DL-OFDMA) and multi-user multiple input multiple output (DL-MUMIMO) communication. An HE-SIGB symbol is processed based on an RU size mapping table. An RU counter is used to process entries in the RU size mapping table and determine the RU size and starting tone index of the intended RU. The RU parameters extracted from the HE-SIGB symbol are used to decode data symbols in the DL-OFDMA or DL-MUMIMO packet. Pilot tone indices of the intended User block and adjacent pilot tone indices are determined for improved carrier phase error estimation.
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公开(公告)号：US10368303B1
公开(公告)日：2019-07-30
申请号：US15868526
申请日：2018-01-11
Applicant: Marvell International Ltd.
Inventor： Chor-Teck Law , Hongyuan Zhang , Sergey Timofeev , Mao Yu
Abstract: A radiofrequency system includes a plurality of transceivers providing a plurality of channels, and circuitry configured to perform off-channel functions. A first subset of channels performs radiofrequency communication functions, and a second subset of channels provides signals for the off-channel functions. The first subset of channels may be provided by a first subset of transceivers, and the second subset of channels may be provided by a second subset of transceivers. A spectrum sensing unit may select between the first subset of transceivers and the second subset of transceivers. The circuitry configured to perform the off-channel functions may use the second subset of the plurality of channels to perform neighborhood discovery. The circuitry configured to perform the off-channel functions may scan available communications channels for interference, storing identifications of interference-free channels, and, upon detection of interference on a channel in use, may select one of the interference-free channels.
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