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公开(公告)号：US20190268031A1
公开(公告)日：2019-08-29
申请号：US16410055
申请日：2019-05-13
Applicant: Silicon Laboratories Inc.
Inventor： Hendricus de Ruijter , Ping Xiong
Abstract: A method for operating a communications system includes transmitting a preamble sequence including a plurality of tones. Each tone of the plurality of tones has a first characteristic and a second characteristic. The first characteristic of each of the tones of the plurality of tones has a predetermined relative relationship to the first characteristic of each of the other tones of the plurality of tones and the second characteristic of each of the tones of the plurality of tones has a predetermined relative relationship to the second characteristic of each of the other tones of the plurality of tones. The first and second characteristics may include relative power and relative phase.
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2.发明申请Apparatus for Receiver With Multi-Bit Observation Interval and Associated Methods 审中-公开具有多位观测间隔和相关方法的接收机装置公开(公告)号：US20160353398A1
公开(公告)日：2016-12-01
申请号：US15164363
申请日：2016-05-25
Applicant: Silicon Laboratories Inc.
Inventor： Hendricus de Ruijter , Ping Xiong , Wentao Li
CPC classification number: H04W56/001 , H04J3/1605 , H04L27/22 , H04L43/028 , H04W4/70 , H04W74/0833
Abstract: An apparatus includes a radio frequency (RF) receiver having a multi-bit observation interval. The RF receiver includes a Coordinate Rotation Digital Computer (Cordic) circuit to receive a complex signal derived from RF signals and to generate a phase signal. The RF receiver further includes a timing correlator and frequency offset estimator coupled to receive data derived from a frequency signal derived from the phase signal. The RF receiver in addition includes a Viterbi decoder coupled to provide decoded data derived from the frequency signal.
Abstract translation: 一种装置包括具有多位观察间隔的射频（RF）接收机。 RF接收机包括坐标旋转数字计算机（Cordic）电路，用于接收从RF信号得到的复数信号并产生相位信号。 RF接收机还包括定时相关器和频率偏移估计器，其被耦合以接收从从相位信号导出的频率信号导出的数据。 RF接收机另外包括维特比解码器，其被连接以提供从频率信号导出的解码数据。
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公开(公告)号：US10305676B2
公开(公告)日：2019-05-28
申请号：US15168080
申请日：2016-05-29
Applicant: Silicon Laboratories Inc.
Inventor： Hendricus de Ruijter , Ping Xiong , Wentao Li , Yan Zhou
Abstract: An apparatus includes a radio frequency (RF) receiver, which includes a digital signal arrival (DSA) detector to detect arrival of a transmitted signal. The DSA detector includes a signal correlator and at least one of (a) an absolute received signal strength indication (RSSI) detector; (b) a relative RSSI detector; and (c) a frequency offset detector). The RF receiver further includes a demodulator coupled to the DSA detector to demodulate a received signal and to provide a demodulated signal, and a synchronization word detector (SWD) coupled to the demodulator to receive the demodulated signal.
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4.发明申请Apparatus for Receiver With Digital Signal Arrival Detector and Associated Methods 审中-公开具有数字信号到达检测器和相关方法的接收机装置公开(公告)号：US20160277177A1
公开(公告)日：2016-09-22
申请号：US15168080
申请日：2016-05-29
Applicant: Silicon Laboratories Inc.
Inventor： Hendricus de Ruijter , Ping Xiong , Wentao Li , Yan Zhou
IPC: H04L7/04 , H04B17/318 , H04L27/14 , H04B1/16
CPC classification number: H04L7/042 , G06F13/4295 , H04B1/16 , H04B17/318 , H04J3/0608 , H04J3/1605 , H04L27/14 , H04W56/00
Abstract: An apparatus includes a radio frequency (RF) receiver, which includes a digital signal arrival (DSA) detector to detect arrival of a transmitted signal. The DSA detector includes a signal correlator and at least one of (a) an absolute received signal strength indication (RSSI) detector; (b) a relative RSSI detector; and (c) a frequency offset detector). The RF receiver further includes a demodulator coupled to the DSA detector to demodulate a received signal and to provide a demodulated signal, and a synchronization word detector (SWD) coupled to the demodulator to receive the demodulated signal.
Abstract translation: 一种装置包括射频（RF）接收机，其包括用于检测发射信号到达的数字信号到达（DSA）检测器。 DSA检测器包括信号相关器和（a）绝对接收信号强度指示（RSSI）检测器中的至少一个; （b）相对RSSI检测器; 和（c）频率偏移检测器）。 RF接收机还包括耦合到DSA检测器以解调接收信号并提供解调信号的解调器，以及耦合到解调器以接收解调信号的同步字检测器（SWD）。
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公开(公告)号：US10720948B2
公开(公告)日：2020-07-21
申请号：US16410055
申请日：2019-05-13
Applicant: Silicon Laboratories Inc.
Inventor： Hendricus de Ruijter , Ping Xiong
Abstract: A method for operating a communications system includes transmitting a preamble sequence including a plurality of tones. Each tone of the plurality of tones has a first characteristic and a second characteristic. The first characteristic of each of the tones of the plurality of tones has a predetermined relative relationship to the first characteristic of each of the other tones of the plurality of tones and the second characteristic of each of the tones of the plurality of tones has a predetermined relative relationship to the second characteristic of each of the other tones of the plurality of tones. The first and second characteristics may include relative power and relative phase.
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Patent Agency Ranking
公开(公告)号：US10312955B1
公开(公告)日：2019-06-04
申请号：US15859894
申请日：2018-01-02
Applicant: Silicon Laboratories Inc.
Inventor： Hendricus de Ruijter , Ping Xiong
Abstract: A method compensates for a frequency error in a communications system. The method includes detecting a received preamble sequence in a received signal. The received preamble sequence is detected based on a plurality of power estimates corresponding to a plurality of frequency bins of a received frequency domain signal and a plurality of relative phase errors corresponding to the plurality of frequency bins of the received frequency domain signal. The method includes determining the frequency error using the received preamble sequence. The method includes adjusting the receiver based on the frequency error.
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公开(公告)号：US10172105B2
公开(公告)日：2019-01-01
申请号：US15164363
申请日：2016-05-25
Applicant: Silicon Laboratories Inc.
Inventor： Hendricus de Ruijter , Ping Xiong , Wentao Li
Abstract: An apparatus includes a radio frequency (RF) receiver having a multi-bit observation interval. The RF receiver includes a Coordinate Rotation Digital Computer (Cordic) circuit to receive a complex signal derived from RF signals and to generate a phase signal. The RF receiver further includes a timing correlator and frequency offset estimator coupled to receive data derived from a frequency signal derived from the phase signal. The RF receiver in addition includes a Viterbi decoder coupled to provide decoded data derived from the frequency signal.
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公开(公告)号：US20180159658A1
公开(公告)日：2018-06-07
申请号：US15370693
申请日：2016-12-06
Applicant: Silicon Laboratories Inc.
Inventor： Hendricus de Ruijter , Ping Xiong , Wentao Li
CPC classification number: H04L1/0054 , H04L1/0047 , H04L7/042 , H04L27/22
Abstract: An apparatus includes a radio frequency (RF) receiver, which includes a differentiator to differentiate a phase signal to generate a differentiated signal. The RF receiver further includes a correlator coupled to receive and correlate the differentiated signal, and a memory to receive and store the differentiated signal. Samples of the differentiated signal are provided to the correlator and to the memory synchronously.
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公开(公告)号：US10389482B2
公开(公告)日：2019-08-20
申请号：US15370693
申请日：2016-12-06
Applicant: Silicon Laboratories Inc.
Inventor： Hendricus de Ruijter , Ping Xiong , Wentao Li
Abstract: An apparatus includes a radio frequency (RF) receiver, which includes a differentiator to differentiate a phase signal to generate a differentiated signal. The RF receiver further includes a correlator coupled to receive and correlate the differentiated signal, and a memory to receive and store the differentiated signal. Samples of the differentiated signal are provided to the correlator and to the memory synchronously.
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10.发明申请公开(公告)号：US20180159706A1
公开(公告)日：2018-06-07
申请号：US15370674
申请日：2016-12-06
Applicant: Silicon Laboratories Inc.
Inventor： Ping Xiong , Hendricus de Ruijter , Amey Naik , Yan Zhou
Abstract: An apparatus includes a radio frequency (RF) receiver, which includes a digital signal arrival (DSA) detector to detect arrival of a transmitted signal. The DSA detector includes a frequency discriminator to receive a signal derived from a received RF signal to generate a first complex signal. The DSA detector further includes a correlator coupled to receive and process the first complex signal and to generate a second complex signal. The DSA detector in addition includes a Coordinate Rotation Digital Computer (Cordic) circuit to receive and process the second complex signal to generate a phase signal and a magnitude signal.
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