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公开(公告)号：US20240364567A1
公开(公告)日：2024-10-31
申请号：US18683897
申请日：2021-08-18
发明人： Markku RENFORS , Ismael PERUGA NASARRE , Toni Aleksi LEVANEN , Juha YLI-KAAKINEN , Mikko VALKAMA
CPC分类号： H04L27/2007 , H04L27/2636
摘要： This document discloses a solution for modulating and demodulating signals transferred over a communication channel. According to an aspect, a method comprises: storing a database for mapping rules for mapping a block of N bits into M modulation symbol phase transitions, wherein a phase transition between consecutive modulation symbols is limited to less than or equal to ∓π/2, wherein M is smaller than N, and wherein M is the smallest number required for realizing 2N different phase-transition combinations; determining an initial phase; acquiring a block of N bits and modulating the block of N bits into M phase symbol transitions from the initial phase by using bit values of the block of N bits and the mapping rules, thus acquiring M modulation symbols; performing said determining, acquiring, and modulating for further blocks of N bits, thus acquiring a sequence of K modulation symbols; allocating the sequence of K modulation symbols to sub-carriers of a multi-carrier symbol and causing transmission of the multi-carrier symbol over a radio interface.
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公开(公告)号：US20240357542A1
公开(公告)日：2024-10-24
申请号：US18751535
申请日：2024-06-24
发明人： Dajie Jiang , Jianming Wu
摘要： A positioning method includes receiving, by a backscatter end, a first signal sent by a first communication device; modulating, by the backscatter end, the first signal based on a second reference signal modulation sequence or a third reference signal modulation sequence to obtain a second signal; and sending, by the backscatter end, the second signal to a second communication device. The second reference signal modulation sequence is an orthogonal sequence determined based on binary phase shift keying BPSK modulation information. The third reference signal modulation sequence is determined based on the second reference signal modulation sequence.
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公开(公告)号：US12119900B2
公开(公告)日：2024-10-15
申请号：US18110543
申请日：2023-02-16
发明人： Yutaka Murakami , Hiroyuki Motozuka
IPC分类号： H04B7/0456 , H04B1/04 , H04L27/20
CPC分类号： H04B7/0456 , H04B1/0475 , H04L27/206
摘要： A transmission device includes: a weighting synthesizer that generates a first precoded signal and a second precoded signal from a first baseband signal and a second baseband signal, respectively; a phase changer that applies a phase change of i×Δλ to the second precoded signal; an inserter that inserts a pilot signal into the second precoded signal applied with the phase change; and a phase changer that applies a phase change to the second precoded signal applied with the phase change and inserted with the pilot signal. The weighting synthesizer performs, in the precoding process, a calculation that uses
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11
e
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θ
11
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21
e
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21
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on the first baseband signal and the second baseband signal modulated via a modulation scheme of QPSK.-
公开(公告)号：US12095604B2
公开(公告)日：2024-09-17
申请号：US17466637
申请日：2021-09-03
发明人： Jian Yu
CPC分类号： H04L27/2085 , H04L5/001 , H04W80/02 , H04W84/12
摘要： This application provides information sending and receiving methods and apparatuses. This application provides a new PPDU format. In some instances, a long training sequence in the new PPDU format is orthogonal to a legacy long training sequence or orthogonal to a high throughput long training sequence. By using this long training sequence, a format of a PPDU can be automatically detected, so as to further process the PPDU according to a network standard corresponding to the format of the PPDU. In addition, when a target long training field is read, the format of the PPDU can be detected, thereby, in at least some implementations, saving time for detecting the format of the PPDU, improving efficiency of detecting the format of the PPDU, and completing a task of detecting the format of the PPDU as early as possible.
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5.发明授权公开(公告)号：US12095603B2
公开(公告)日：2024-09-17
申请号：US18146872
申请日：2022-12-27
CPC分类号： H04L27/20 , H03K19/20 , H04B1/0466 , H04B1/16 , H04L25/4902
摘要： An isolated driver device comprises a first semiconductor die and a second semiconductor die galvanically isolated from each other. The second semiconductor die includes a signal modulator circuit configured to modulate a carrier signal to produce a modulated signal encoding information. A galvanically isolated communication channel implemented in the first semiconductor die and the second semiconductor die is configured to transmit the modulated signal from the second semiconductor die to the first semiconductor die. The second semiconductor die includes: a fault detection circuit configured to detect electrical faults in the second semiconductor die; a logic circuit coupled to the fault detection circuit and configured to assert a modulation bypass signal in response to a fault being detected by the fault detection circuit; and modulation masking circuitry configured to force the modulated signal to a steady value over a plurality of periods of the carrier signal in response to the modulation bypass signal being asserted. The first semiconductor die includes a respective logic circuit sensitive to the modulated signal and configured to detect a condition where the modulated signal has a steady value over a plurality of periods of the carrier signal, and to assert a fault detection signal in response to the condition being detected.
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公开(公告)号：US12076110B2
公开(公告)日：2024-09-03
申请号：US18048313
申请日：2022-10-20
申请人： Brown University
发明人： Arto Nurmikko , Jihun Lee , Ah-Hyoung Lee , Farah Laiwalla
CPC分类号： A61B5/0031 , H04L1/0003 , H04L27/20 , H04W74/08 , A61B2560/0219 , H04W84/18
摘要： A method includes providing an ensemble of distributed sensors, delivering radio frequency (RF) power to each sensor by inductive near-field coupling by a magnetic field projected by an epidermal transmit (Tx) coil, in each individual sensor, detecting a sparse binary event in its immediate environment, reporting the detected sparse binary event to an external RF receiver hub asynchronously and with low latency, and minimizing error rates due to statistical data packet collisions in asynchronous telemetry by digitally encoding each sensor according to a particular address scheme where each address is one function from an infinite set of mathematically orthogonal functions, enabling a simultaneous detection from up to ten thousand points without interference at a common receiver.
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公开(公告)号：US20240283683A1
公开(公告)日：2024-08-22
申请号：US18570248
申请日：2022-05-30
申请人： Robert Bosch GmbH
发明人： Albrecht Klotz , Balint Nagy , Dirk Schmid , Michael Schumann , Torsten Reiner
CPC分类号： H04L27/2014 , H04L12/44 , H04L27/2082 , H04L2012/40273
摘要： A method for transmitting data in a sensor bus system and a sensor bus system. The sensor bus system includes an electronic controller, a plurality of sensors, and a twisted two-wire line between the electronic controller and the sensors, wherein the electronic controller is designed to supply electrical energy to the sensors via the twisted two-wire line, and the sensors are designed to transmit received information to the electronic controller in an I/Q-modulated manner via the twisted two-wire line.
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公开(公告)号：US20240250861A1
公开(公告)日：2024-07-25
申请号：US18575037
申请日：2022-08-09
申请人： ZTE CORPORATION
CPC分类号： H04L27/362 , H04L27/2067 , H04L27/2614
摘要： Provided are a data transmission method and apparatus, a communication node, and a storage medium. The method includes the following: Data is modulated in a time domain according to a set modulation manner to obtain modulated data, where the set modulation manner is associated with a time domain position of a modulation symbol in the modulated data; and the modulated data is transmitted.
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公开(公告)号：US12041258B2
公开(公告)日：2024-07-16
申请号：US17849240
申请日：2022-06-24
IPC分类号： H04N19/467 , H04L27/20 , H04L67/50 , H04N21/442 , H04N21/8358
CPC分类号： H04N19/467 , H04L27/2032 , H04L67/535 , H04N21/44222 , H04N21/8358
摘要： Methods, apparatus, systems and articles of manufacture are disclosed for watermarking using starting phase modulation. An example apparatus includes at least one memory, machine readable instructions, and processor circuitry to execute the machine readable instructions to at least access a media signal, access a watermark symbol to be encoded into the media signal, determine bit values of the watermark symbol, determine a common starting phase value for watermark components of the watermark symbol, the common starting phase value to represent at least one of the bit values of the watermark symbol, and embed the watermark components into the media signal based on the common starting phase value.
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公开(公告)号：US20240230882A1
公开(公告)日：2024-07-11
申请号：US18153211
申请日：2023-01-11
申请人： NXP B.V.
CPC分类号： G01S13/788 , H04L27/20 , H03M7/30
摘要： The present disclosure provides a radar front end chip that includes a plurality of encoders, each encoder of the plurality of encoders to receive a digitized radar signal and to encode the digitized radar signal with a phase code to generate one of a plurality of phase-coded digitized radar signals. The radar front end chip also includes a combiner to combine the plurality of phase-coded digitized radar signals into a digital radar data stream for transmission to a central radar processor.
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