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公开(公告)号：US12132601B2
公开(公告)日：2024-10-29
申请号：US17911664
申请日：2021-02-19
发明人： Nabil Sven Loghin , Stefan Uhlich , Kit Lam Lee
CPC分类号： H04L27/362 , H04B14/004
摘要： According to an aspect of the present disclosure there is provided a communication device comprising circuitry configured to modulate a four-dimensional input signal by combining the four real-valued signal components of the input signal into a transformed signal and multiplying the transformed signal by carrier signals using two different carrier frequencies to obtain a transmit signal, and transmit the transmit signal.
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公开(公告)号：US11451300B2
公开(公告)日：2022-09-20
申请号：US17160999
申请日：2021-01-28
发明人： Jamal Riani , Sudeep Bhoja
IPC分类号： H04B10/27 , H04L27/34 , H03K9/02 , H04B10/25 , H04B10/61 , H04B14/00 , H04L27/06 , H04L27/02
摘要： The present invention is directed to data communication system and methods. More specifically, various embodiments of the present invention provide a communication interface that is configured to transfer data at high bandwidth using nDSQ format(s) over optical communication networks. In certain embodiments, the communication interface is used by various devices, such as spine switches and leaf switches, within a spine-leaf network architecture, which allows large amount of data to be shared among servers.
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公开(公告)号：US11184200B2
公开(公告)日：2021-11-23
申请号：US16573588
申请日：2019-09-17
申请人： TM IP HOLDINGS, LLC
摘要： Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for modulating and demodulating transpositional modulated (TM) signals. One aspect features a method of modulating a carrier signal that include the actions of generating a TM signal by generating a sinusoidal signal, and modulating the sinusoidal signal based on a data signal to provide the TM signal. Inserting the TM signal into a carrier signal to provide a TM modulated carrier signal. Modulating the TM modulated carrier signal with a non-TM signal to provide a combined signal. Transmitting the combined signal.
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公开(公告)号：US20210124016A1
公开(公告)日：2021-04-29
申请号：US16660983
申请日：2019-10-23
申请人： SpotterRF LLC
发明人： Logan Carl Harris
摘要： A method for wirelessly synchronizing a radar detector to a radar transmitter includes wirelessly receiving a first instance of a frequency-modulated continuous-wave (FMCW) radar signal directly emitted by the radar transmitter, determining a frequency slope change event in the FMCW radar signal using the first instance of the FMCW radar signal and temporally synchronizing the radar detector to the radar transmitter based on the frequency slope change event. Determining the frequency slope change event may include generating a frequency slope monitoring signal. In some embodiments, generating the frequency slope monitoring signal comprises mixing the first instance of the FMCW radar signal with a second instance of the FMCW radar signal. The second instance of the FMCW radar signal may be a reflected instance or a locally delayed instance of the first instance. A corresponding apparatus, computer readable medium and system are also disclosed herein.
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5.发明授权公开(公告)号：US10925489B2
公开(公告)日：2021-02-23
申请号：US16580985
申请日：2019-09-24
发明人： Edward K. F. Lee , Harshit R. Suri
摘要： A medical system and method of communicating between a telemetry controller and medical devices is provided. Coupling coefficients between a primary coil of the telemetry controller and secondary coils of the medical devices differ from each other. A primary carrier signal is applied to the primary coil, thereby respectively inducing secondary carrier signals on the secondary coils. An amplitude of the secondary carrier signal is measured on each of the secondary coils. The envelope of each secondary carrier signal is modulated in accordance with data, thereby inducing modulation of the envelope of the primary carrier signal for the implanted medical devices. The secondary carrier signal envelopes are modulated based on the measured amplitudes of the respective secondary carrier signals.
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公开(公告)号：US10892832B2
公开(公告)日：2021-01-12
申请号：US14538623
申请日：2014-11-11
发明人： Adam Young , Bruce K. Winker
摘要： An orientation tracking system for a moving platform includes a transmitter which generates an beam having a known polarization with respect to a predefined coordinate system. The moving platform includes an ellipsometric detector capable of detecting the polarized beam when within the line-of-sight of the transmitter, and measuring its polarization state. The polarization state indicates the rotational orientation of the moving platform with respect to the predefined coordinate system. The beam could also be used to convey guidance commands to the platform.
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公开(公告)号：US20200280468A1
公开(公告)日：2020-09-03
申请号：US16288719
申请日：2019-02-28
发明人： Joon Ho Cho
摘要： A communication system in which multiple shaping codes are selectively and iteratively used to encode a data frame such that possible energy inefficiencies associated with the use of constant-probability codes and/or transmission of dummy constellation symbols can be relatively small. In an example embodiment, the used shaping codes have different respective code rates, and a code selector of the shaping encoder operates to select one of the shaping codes by adaptively matching the rate of the code to the effective rate needed to efficiently encode the unprocessed portion of the data frame. The encoding is carried out in a manner that enables the shaping decoder to unequivocally determine the shaping codes that have been used for encoding each particular data frame based on the same rate-matching criteria as those used by the shaping encoder. At least some embodiments advantageously lend themselves to being implemented using circuits of relatively low complexity.
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公开(公告)号：US10419132B2
公开(公告)日：2019-09-17
申请号：US16255256
申请日：2019-01-23
发明人： Nadav Fine , Ran Soffer
摘要： The continuous demand for capacity and the limited available spectrum in wireless and wired communication has led to reliance on advanced modulation techniques to dramatically increase the number of bits per hertz per second. This demand in capacity and using the higher order constellations shorten the link range, and as a result, system gain becomes an important characteristic. The modulation techniques described here improve the system gain by, e.g., as much as 2.5 dB in high order modulations such as 4096-QAM. The modulation techniques include reducing the peak to average ratio and adding shaping gain. These techniques dramatically improve the system capacity, system gain, power consumption and system cost.
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公开(公告)号：US10382139B2
公开(公告)日：2019-08-13
申请号：US15386204
申请日：2016-12-21
发明人： Isaac Rosenhouse , Oz Harel , Haggai Mizrahi , David Heller , Gur Ballas
IPC分类号： H04B10/532 , H04B7/10 , H04B14/00 , H04B7/0417 , H04B7/06
摘要： A method for optimizing reception of a polarized single-carrier transmission, including transmitting a polarized single-carrier transmission to a receiver, receiving feedback from the receiver of a figure of merit of the polarized single-carrier transmission, and electronically changing polarization of the polarized single-carrier transmission based on the feedback. A single-carrier communication transmitter including a source for a polarized single-carrier transmission signal, a circuit for receiving feedback from a receiver describing a figure of merit of a received polarized single-carrier transmission, and a circuit for changing polarization of the polarized single-carrier transmission signal, based on the feedback. Related apparatus, systems and methods are also described.
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公开(公告)号：US20190103900A1
公开(公告)日：2019-04-04
申请号：US15723219
申请日：2017-10-03
申请人： Ceva D.S.P. Ltd.
发明人： Alexander Yufit , Zeev Kaplan , David Levy
IPC分类号： H04B7/0413 , G05B17/02 , H04B7/06 , H04L25/02 , H04B14/00
CPC分类号： H04B7/0413 , G05B17/02 , G06N3/02 , G06N7/005 , H04B7/0478 , H04B7/0486 , H04B7/0608 , H04B14/004 , H04L1/0015 , H04L1/0026 , H04L25/0204 , H04L25/0246
摘要： A system and method for MIB estimation including generating a signal model for rank=2, based on the reference signals of a received wireless signal; converting the signal model to a four-parameter representation; determining, for values of parameters derived from the four-parameter representation, whether mutual information per bit (MIB) values depend on a single parameter or on a plurality of parameters; if the MIB values depend on the single parameter, calculating MIB values based on the single parameter; and if the MIB values depend on the plurality of parameters, calculating MIB values based on the plurality of parameters. Calculating MIB values based on the single parameter, determining, whether MIB values depend on a single parameter or on a plurality of parameters and, calculating MIB values based on the plurality of parameters, are performed using a machine learning algorithm.
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