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公开(公告)号：US20250061799A1
公开(公告)日：2025-02-20
申请号：US18234979
申请日：2023-08-17
Applicant: ROKU, INC.
Inventor： NEIL JOHNSON , FRANK MAKER , CARL SASSENRATH
Abstract: Disclosed herein are system, apparatus, article of manufacture, method and/or computer program product aspects, and/or combinations and sub-combinations thereof, for locating a remote control. An example aspect operates by transmitting an encoded radio frequency to wake-up a proximate television remote and initiate a “find my remote” process. A passive circuit integrated within the television remote receives the transmitted encoded radio frequency signal. Once awake, the television remote may provide an indicator of location to a proximate user. Another example aspect operates by transmitting high frequency radar to a radar transponder circuit within the television remote so that it becomes visible to the radar. Once the transponder is activated, the radar may locate the television remote relative to the television and display the location of the television remote on-screen, on a mobile device screen, or other locator indicator constructs.
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公开(公告)号：US20250055736A1
公开(公告)日：2025-02-13
申请号：US18788056
申请日：2024-07-29
Applicant: OMRON Corporation
Inventor： Yusuke MIWA , Tatsuo YOSHIDA
Abstract: A communication device (10) includes a reception part (20) demodulating a signal subjected to frequency shift keying by using binary values. The reception part has: a detection part, detecting a first bit, which is one of high and low bits along a time line; and an estimation part, estimating presence of a second bit based on a length of the ongoing time during which the first bit cannot be detected.
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公开(公告)号：US20250047534A1
公开(公告)日：2025-02-06
申请号：US18846739
申请日：2023-03-13
Applicant: NewSouth Innovations Pty Limited
Inventor： Jinhong Yuan , Yixuan Xie , Cheng Shen
IPC: H04L27/14
Abstract: The present disclosure provides a wireless receiver having a Delay Doppler channel detector. The Delay Doppler channel detector includes a Delay Dopper domain channel estimator and a detector and demodulator. The Delay Doppler domain channel estimator is configured for estimating a channel gain, a delay, and a Doppler frequency shift of a path of a channel of data received via the channel. The detector and demodulator is configured for extracting a symbol sequence of the received data based on the estimated channel gain, the estimated delay, and the estimated Doppler frequency shift of the path of the channel.
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公开(公告)号：US20240303194A1
公开(公告)日：2024-09-12
申请号：US18626212
申请日：2024-04-03
Applicant: Lodestar Licensing Group LLC
Inventor： Robert Nasry Hasbun , Timothy M. Hollis , Jeffrey P. Wright , Dean D. Gans
IPC: G06F12/0806 , H04L5/00 , H04L27/14
CPC classification number: G06F12/0806 , H04L5/0007 , H04L27/14
Abstract: Methods, systems, and devices that support variable modulation schemes for memory are described. A device may switch between different modulation schemes for communication based on one or more operating parameters associated with the device or a component of the device. The modulation schemes may involve amplitude modulation in which different levels of a signal represent different data values. For instance, the device may use a first modulation scheme that represents data using two levels and a second modulation scheme that represents data using four levels. In one example, the device may switch from the first modulation scheme to the second modulation scheme when bandwidth demand is high, and the device may switch from the second modulation scheme to the first modulation scheme when power conservation is in demand. The device may also, based on the operating parameter, change the frequency of the signal pulses communicated using the modulation schemes.
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5.发明授权公开(公告)号：US12009955B2
公开(公告)日：2024-06-11
申请号：US18377282
申请日：2023-10-05
Applicant: Xiamen Zifisense InfoTech Co., Ltd.
Inventor： Delai Zheng , Zhuoqun Li
CPC classification number: H04L27/106 , H04L27/12 , H04L27/14
Abstract: A receiving method based on multiple frequency-shift keying (M-FSK) modulation. The method comprises performing M-FSK demodulation on a frame structure comprising a preamble frame, a SYNC frame, and a data frame. The performing comprises: performing the M-FSK demodulation of the preamble frame using an autocorrelation time-frequency synchronization technology; performing the M-FSK demodulation of the preamble frame using a time-frequency synchronization technology using cross-correlation sliding fast Fourier transform (FFT); and performing the M-FSK demodulation of at least one of the SYNC frame or the data frame using an M-FSK data demodulation technology using adaptive and scalable FFT.
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Patent Agency Ranking
公开(公告)号：US11971820B2
公开(公告)日：2024-04-30
申请号：US17863987
申请日：2022-07-13
Applicant: Lodestar Licensing Group LLC
Inventor： Robert Nasry Hasbun , Timothy M. Hollis , Jeffrey P. Wright , Dean D. Gans
IPC: G06F12/08 , G06F12/0806 , H04L5/00 , H04L27/14
CPC classification number: G06F12/0806 , H04L5/0007 , H04L27/14
Abstract: Methods, systems, and devices that support variable modulation schemes for memory are described. A device may switch between different modulation schemes for communication based on one or more operating parameters associated with the device or a component of the device. The modulation schemes may involve amplitude modulation in which different levels of a signal represent different data values. For instance, the device may use a first modulation scheme that represents data using two levels and a second modulation scheme that represents data using four levels. In one example, the device may switch from the first modulation scheme to the second modulation scheme when bandwidth demand is high, and the device may switch from the second modulation scheme to the first modulation scheme when power conservation is in demand. The device may also, based on the operating parameter, change the frequency of the signal pulses communicated using the modulation schemes.
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公开(公告)号：US11902063B2
公开(公告)日：2024-02-13
申请号：US17324397
申请日：2021-05-19
Applicant: Mediatek Inc.
Inventor： Yiju Liao , Chien Hwa Hwang , Chien-Chang Li
CPC classification number: H04L27/14 , H04L5/0048 , H04L5/0051 , H04L5/0053 , H04L5/0094 , H04L25/0202 , H04W76/27 , H04L5/001 , H04L5/0007 , H04W80/02
Abstract: A UE determines a first DCCH resource candidate in a first CORESET on a carrier, the first DCCH resource candidate including a first set of RBs. The UE also determines a first sequence of DMRSs that are mapped, starting at a reference point, to RBs in a predetermined range within the carrier in a frequency domain, the predetermined range containing the first DCCH resource candidate in the frequency domain. The UE further determines a first reference location of the first set of RBs. The UE determines, based on the first reference location, a first set of DMRSs from the first sequence of DMRSs, the first set of DMRSs being mapped to the first set of RBs. The UE obtains a channel estimation based on the first set of DMRSs; and The UE performs blind decoding of the first DCCH resource candidate based on the channel estimation.
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公开(公告)号：US20240031207A1
公开(公告)日：2024-01-25
申请号：US18200836
申请日：2023-05-23
Applicant: Skyworks Solutions, Inc.
Inventor： Alexander August Arthur Hakkola
Abstract: A tracking and rejection filter for use in a receiver of a radio includes a selectable filter configured to provide an output digital in-phase signal and an output digital quadrature signal based on a center frequency, a digital in-phase signal corresponding to an in-phase component of a received radio frequency signal, and a digital quadrature signal corresponding to a quadrature component of the received radio frequency signal. The tracking and rejection filter includes a select circuit configured to select the center frequency of the selectable filter according to whether an interfering signal is detected in a target frequency band of the received radio frequency signal. The center frequency is selected from a predetermined frequency and an estimated center frequency determined using an instantaneous frequency signal. The instantaneous frequency signal is based on the digital in-phase signal and the digital quadrature signal.
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公开(公告)号：US20230084847A1
公开(公告)日：2023-03-16
申请号：US17475814
申请日：2021-09-15
Applicant: Renesas Electronics America Inc.
Inventor： Jiangjian Huang , Hulong Zeng , Gopinath Akkinepally , Amit Dharmendra Bavisi
Abstract: Systems and apparatuses for wireless power transfer system are described. A receiver may send an amplitude shift key (ASK) signal to a transmitter. The transmitter may receive the ASK signal from the receiver. The transmitter may perform a demodulation on the ASK signal. The transmitter may, in response to a failure to demodulate the ASK signal, encode a notification of failure in a frequency shift key (FSK) signal. The transmitter may transmit the FSK signal to the receiver. The receiver may receive the FSK signal. The receiver may perform a function to resolve the failure to demodulate the ASK signal.
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公开(公告)号：US20220400039A1
公开(公告)日：2022-12-15
申请号：US17777291
申请日：2020-11-03
Applicant: SEW-EURODRIVE GMBH & CO. KG
Inventor： Andreas WANJEK , Mauricio BUCERIUS
IPC: H04L27/14 , H04L27/152 , H04L27/12
Abstract: A device for transmitting data includes a transmitter for generating a frequency-modulated output signal. The transmitter includes a phase-locked loop for adjusting an output frequency of the output signal to a carrier frequency, and a coupling circuit for coupling a data stream into the phase-locked loop. The output signal modulated in frequency by the coupled-in data stream has an output frequency variable over time, and the coupling circuit includes a compensation unit, which couples a compensation signal into the phase-locked loop. The compensation signal compensates at least approximately for an adjustment of the output frequency to the carrier frequency carried out by the phase-locked loop.
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