公开(公告)号：US12107642B2

公开(公告)日：2024-10-01

申请号：US18297692

申请日：2023-04-10

申请人： Bendix Commercial Vehicle Systems LLC

发明人： Akshay Mishra ,  Amit Babalal Nahar ,  Pratima Vishwakarma ,  Dattatray Jadhav ,  Michael D. Cremona ,  Tandi Wijaya

IPC分类号： H04L12/403 ,  H04B3/54 ,  H04L27/10

CPC分类号： H04B3/542 ,  H04L27/103

摘要： A system for demodulating and decoding received messages transmitted along a vehicle power line includes a reference signal generator, a timer, and a demodulation and decoding circuit. The circuit determines whether a message is present on the power line by identifying a symbol indicative of a message preamble, subsequently setting the timer to a time corresponding to a predetermined length of the message preamble, detecting, during the time, a plurality of symbols and determining whether the symbols indicate the presence of a message preamble. The circuit then extracts data from the message by activating the reference signal generator, adding the reference signal to the message to produce an equivalent signal, detecting a symbol in the equivalent signal indicative of the message data body, subsequently setting the timer to a time corresponding to a predetermined length of the message data body and detecting, during the time, a second plurality of symbols.

公开(公告)号：US20240283686A1

公开(公告)日：2024-08-22

申请号：US18567973

申请日：2022-08-09

申请人： ZTE CORPORATION

发明人： Jian HUA ,  Yu XIN ,  Tong BAO

IPC分类号： H04L27/26 ,  H04J13/00 ,  H04L27/10 ,  H04L27/34

CPC分类号： H04L27/2613 ,  H04J13/0029 ,  H04L27/10 ,  H04L27/3494

摘要： Provided are a reference signal configuration method and device, and a storage medium. The method includes that: a modulation mode of a data sequence is determined; a modulation mode of a reference signal sequence is determined according to the modulation mode of the data sequence, where a constellation diagram of the reference signal sequence is associated with a time domain position.

公开(公告)号：US20240231505A1

公开(公告)日：2024-07-11

申请号：US18554337

申请日：2022-04-08

申请人： Google LLC

发明人： Eiji Hayashi ,  Jaime Lien ,  Nicholas Edward Gillian ,  Andrew C. Felch ,  Jin Yamanaka ,  Blake Charles Jacquot

IPC分类号： G06F3/01 ,  H04L27/10

CPC分类号： G06F3/017 ,  H04L27/103

摘要： Techniques and apparatuses are described that facilitate ambient computing using a radar system. Compared to other smart devices that rely on a physical user interface, a smart device with a radar system can support ambient computing by providing an eye-free interaction and less cognitively demanding gesture-based user interface. The radar system can be designed to address a variety of challenges associated with ambient computing, including power consumption, environmental variations, background noise, size, and user privacy. The radar system uses an ambient-computing machine-learned module to quickly recognize gestures performed by a user up to at least two meters away. The ambient-computing machine-learned module is trained to filter background noise and have a sufficiently low false positive rate to enhance the user experience.

公开(公告)号：US20240205065A1

公开(公告)日：2024-06-20

申请号：US18555391

申请日：2022-04-29

申请人： Cohere Technologies, Inc.

发明人： Shlomo Selim Rakib ,  Ronny HADANI ,  Shachar KONS ,  Clayton AMBROSE

IPC分类号： H04L27/26 ,  H04L27/10

CPC分类号： H04L27/2639 ,  H04L27/103 ,  H04L27/2628

摘要： Methods, systems and devices for wireless communication are described. One example method includes mapping information bits to transmission resources in a two-dimensional delay-Doppler grid In this example, the two-dimensional delay-Doppler grid includes N Doppler elements along a Doppler dimension and M delay elements along a delay dimension, and N and M are positive integers. The example method continues with converting a result of the mapping to a signal waveform, and generating an orthogonal time frequency space (OTFS) waveform by spreading the signal waveform using a spreading scheme. In some examples, the signal waveform includes an ultra-wide band (UWB) waveform.

公开(公告)号：US20240204578A1

公开(公告)日：2024-06-20

申请号：US18288938

申请日：2022-05-02

申请人： LG Electronics Inc.

发明人： Jaeyeol KIM

IPC分类号： H02J50/80 ,  H02J50/12 ,  H04B5/79 ,  H04L27/10

CPC分类号： H02J50/80 ,  H02J50/12 ,  H04B5/79 ,  H04L27/10

摘要： The present disclosure provides a wireless power transfer method performed by a wireless power transmitter in a wireless power transmission system, and a device using same, the method comprising: establishing a power transfer contract with a wireless power receiver in a negotiation phase; and transferring the wireless power to the wireless power receiver on the basis of the power transfer contract in a power transfer phase, wherein the wireless power transmitter receives request information from the wireless power receiver in the negotiation phase, the request information includes information on a control error (CE) packet interval, and the wireless power transmitter transmits data to the wireless power receiver on the basis of the CE packet interval in the power transfer phase.

公开(公告)号：US20240151138A1

公开(公告)日：2024-05-09

申请号：US18402870

申请日：2024-01-03

申请人： Raptor Data Limited

发明人： Colin Maclean ,  Nancy Jayakumar ,  Gordon Cowie

IPC分类号： E21B47/16 ,  G10K11/24 ,  H04B11/00 ,  H04L27/10

CPC分类号： E21B47/16 ,  G10K11/24 ,  H04B11/00 ,  H04L27/103 ,  H04L5/0064

摘要： An apparatus for determining a suitability of a frequency band for data communication with a node by way of a communication channel may be provided. The apparatus may comprise a receiver configured to receive first and second signals from the node by way of the communication channel, the first and second signals having frequencies within the frequency band. The apparatus may comprise processing circuitry communicatively coupled to the receiver, the processing circuitry being configured to determine a calibration function depending on the first signal, process the second signal depending on the calibration function, determine the suitability of the frequency band for data communication with the node by way of the communication channel depending on the processed second signal and output an indication of the said suitability. The processing circuitry may be configured to determine the suitability of the frequency band for data communication with the node depending on the processed second signal by comparison of the processed second signal to predetermined reference data.

公开(公告)号：US11870501B2

公开(公告)日：2024-01-09

申请号：US16956905

申请日：2018-12-20

申请人： SONOS EXPERIENCE LIMITED

发明人： Daniel John Jones ,  James Andrew Nesfield

IPC分类号： H04L27/10 ,  H04B11/00

CPC分类号： H04B11/00

摘要： The present invention relates to a method for communicating data acoustically. The method includes segmenting the data into a sequence of symbols; encoding each symbol of the sequence into a plurality of tones; and acoustically generating the plurality of tones simultaneously for each symbol in sequence. Each of the plurality of tones for each symbol in the sequence may be at a different frequency.

公开(公告)号：US20230412444A1

公开(公告)日：2023-12-21

申请号：US18322862

申请日：2023-05-24

申请人： Cohere Technologies, Inc.

发明人： Ronny HADANI ,  Shlomo Selim RAKIB

IPC分类号： H04L27/26 ,  H04B7/005 ,  H04L27/01 ,  H04L5/00 ,  H04L27/10

CPC分类号： H04L27/2639 ,  H04B7/005 ,  H04L27/01 ,  H04L27/2655 ,  H04L27/2697 ,  H04L27/26532 ,  H04L5/0044 ,  H04L5/0005 ,  H04L27/10 ,  H04L5/0016 ,  H04L23/02

摘要： A method for modulating data for transmission within a communication system. The method includes establishing a time-frequency shifting matrix of dimension N×N, wherein N is greater than one. The method further includes combining the time-frequency shifting matrix with a data frame to provide an intermediate data frame. A transformed data matrix is provided by permuting elements of the intermediate data frame. A modulated signal is generated in accordance with elements of the transformed data matrix.

公开(公告)号：US20230318775A1

公开(公告)日：2023-10-05

申请号：US18324239

申请日：2023-05-26

申请人： NUWAN SURESH FERDINAND ,  MING JIA ,  JIANGLEI MA ,  JAVAD ABDOLI

发明人： NUWAN SURESH FERDINAND ,  MING JIA ,  JIANGLEI MA ,  JAVAD ABDOLI

IPC分类号： H04L5/00 ,  H04L27/10 ,  H04L25/02

CPC分类号： H04L5/0048 ,  H04L25/0202 ,  H04L27/10

摘要： A reference signaling scheme is provided that is based on the use of a Zadoff Chu sequence with cyclic repetition, optionally code division multiplexing precoding, together with frequency domain spectral shaping (FDSS). A specific pulse shape design for the FDSS part of the reference signal scheme in some embodiments involves the use of a raised cosine pulse raised to the power of β. The new solution for generating reference signals has a Low peak average power ratio that matches the PAPR of SC-OQAM, good channel estimation performance, and the ability to implement CDM in the frequency domain to increase multiplexing gain.

公开(公告)号：US11750427B1

公开(公告)日：2023-09-05

申请号：US17736743

申请日：2022-05-04

申请人： L3Harris Technologies, Inc.

发明人： Janez Jeraj ,  Larry S. Thomson ,  Roy E. Prymek

IPC分类号： H04L27/20 ,  H04L27/12 ,  H04L27/26 ,  H04L27/10 ,  H04L27/01

CPC分类号： H04L27/2007 ,  H04L27/01 ,  H04L27/122 ,  H04L27/2602

摘要： Vector modulation is illustrated. A method includes receiving an input signal. The input signal is split into a first 0° output and a 90° output. The first 0° output is split into a second 0° output and a first 180° output using a continuous transmission line. The 90° output is split into a third 0° output and a second 180° output using a continuous transmission line. The second 0° output, the first 180° output, the third 0° output, and the second 180° output are modulated. The modulated second 0° output, the first 180° output, the third 0° output, and the second 180° output are recombined to produce an output signal, where all four of the modulated second 0° output, the first 180° output, the third 0° output, and the second 180° output are used to create the output signal.