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公开(公告)号：US12132450B2
公开(公告)日：2024-10-29
申请号：US17695500
申请日：2022-03-15
发明人： Wen-Sheng Chen , En-Hsiang Yeh , Tzu-Jin Yeh
CPC分类号： H03F1/30 , H03F3/245 , H04B1/1607 , H04B1/18
摘要： A power amplifier structure includes at least one power amplifier circuit. The power amplifier circuit includes a transistor of a first type connected in series with a transistor of a second type connected between the same voltage supply. In a non-limiting nonexclusive example, an n-type transistor is connected in series with a p-type transistor connected between Vdd. The power amplifier structure can include two amplifier circuits configured in a differential amplifier structure. The differential amplifier structure includes two amplifier circuits operably connected in parallel between the same voltage supply.
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公开(公告)号：US20240356574A1
公开(公告)日：2024-10-24
申请号：US18688120
申请日：2022-09-01
申请人： UNIVERSITE DE LILLE , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE , CENTRALE LILLE INSTITUT , UNIVERSITE POLYTECHNIQUE HAUTS-DE-FRANCE
IPC分类号： H04B1/16
CPC分类号： H04B1/1638
摘要： “A signal, in particular radio-frequency signal, detector (10), such as a detector of wake-up radio type has
a first circuit (20) receiving at its input the signal, configured to set the operating point (M) at the output to a predefined DC voltage (Vm_DC) to which a variable part (ΔVm) which is dependent on the signal from the input is added.
A second circuit (30) is connected at its input to the output of the first circuit (20) and configured to amplify the variable part (ΔVm) of the signal, this second circuit has a chain of at least two logic inverters (32) in a cascade and operating below the threshold.-
公开(公告)号：US12126427B2
公开(公告)日：2024-10-22
申请号：US17380960
申请日：2021-07-20
CPC分类号： H04B7/18506 , H04B1/16
摘要： An instrument landing system comprises: a wideband antenna configured to receive signals in a VHF band; and a receiver coupled to the wideband antenna and configured to implement SDR functions to analyze the signals for a flight inspection. A UAS comprises: an instrument landing system comprising: a wideband antenna configured to receive signals in a VHF band; and a receiver coupled to the wideband antenna and configured to implement SDR functions to analyze the signals for a flight inspection. A method comprises: receiving, using a wideband antenna, signals in a VHF band; and implementing, using a receiver coupled to the wideband antenna, SDR functions to analyze the signals for a flight inspection.
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公开(公告)号：US20240340030A1
公开(公告)日：2024-10-10
申请号：US18132911
申请日：2023-04-10
发明人： Mohyee MIKHEMAR , Alvin Lai Lin , Andrew J. Blanksby , Sudharshan Srinivasan , Arya Behzad , Bevin George Perumana
CPC分类号： H04B1/0475 , H04B1/1676 , H04B1/68
摘要： An apparatus includes a first circuit to receive a first input data, a second input data and coefficients, generate a first distortion term and a second distortion term based, respectively on the first input data and the coefficients and the second input data and the coefficients, and change a polarity of the first distortion term and the second distortion term. A first subtraction circuit subtracts the first distortion term from the first input data and generates first difference data, and a second subtraction circuit subtracts the second distortion term from the second input data and generates second difference data. A transmit data-path generates a RF output. The first difference data and the second difference data compensate, based on the polarity changes of the first distortion term and the second distortion term, respectively, one or more impairments of the RF output.
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公开(公告)号：US12113584B2
公开(公告)日：2024-10-08
申请号：US17777425
申请日：2020-11-18
发明人： Chengwei Jia
摘要： A radio frequency receiving link and a radio frequency transceiving device are provided. The radio frequency receiving link includes: an input unit, configured to input a first input signal; a clock unit, configured to generate a local oscillator signal; a receiving link frequency-mixing unit, configured to obtain the first input signal and the local oscillator signal, and generate a first frequency-mixing signal according to the first input signal and the local oscillator signal; and a calibration unit, configured to obtain first direct current offset information of the radio frequency receiving link, wherein the first direct current offset information is direct current offset information in the radio frequency receiving link when the receiving link frequency-mixing unit generates the first frequency-mixing signal.
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公开(公告)号：US20240333798A1
公开(公告)日：2024-10-03
申请号：US18623961
申请日：2024-04-01
申请人： Copper Labs, Inc.
发明人： Jeffrey P Mathews , Morgan Jones
CPC分类号： H04L67/12 , H04L49/252 , H04B1/16
摘要： A system for reception of radio transmissions includes: a collector, coupled to a plurality of transmitters via a plurality of wireless radio frequency (RF) links. The collector has a channelizer chain that receives an RF signal stream comprising broadcasts from the plurality of transmitters according to one or more known packet transmission protocols, converts the RF signal stream into digital bit streams that each correspond to a corresponding frequency channel. The collector also has a plurality of packet receivers that comport with a number of frequency channels provided by the channelizer chain and that are coupled in parallel to the channelizer chain. Each of the receivers processes more than one sample within each bit of a corresponding digital bit stream to detect, demodulate, and decode bits of the corresponding digital bit stream into packet payloads. The collector validates the packet payloads and forwards the packet payloads to one or more entities. A configuration processor enable and disables selected channels to comport with location.
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公开(公告)号：US12106011B2
公开(公告)日：2024-10-01
申请号：US17741678
申请日：2022-05-11
申请人： ALGORIDDIM GMBH
IPC分类号： G06F3/16 , G06F3/0482 , G06N3/08 , G10H1/00 , G10L21/028 , G10L21/034 , G10L21/043 , G10L25/30 , G10L25/51 , G11B20/10 , G11B27/10 , H04N21/439 , H04R3/12 , H04S1/00 , H04B1/16
CPC分类号： G06F3/165 , G06F3/0482 , G06N3/08 , G10H1/0008 , G10L21/028 , G10L21/034 , G10L21/043 , G10L25/30 , G10L25/51 , G11B20/10527 , G11B27/105 , H04N21/439 , H04R3/12 , H04S1/007 , G10H2210/056 , G10H2210/076 , G10H2210/081 , G10H2210/125 , G10H2210/325 , G10H2210/391 , G10H2220/101 , G10H2240/325 , G10H2250/311 , H04B1/1646 , H04R2227/003 , H04R2227/005 , H04S2400/13
摘要： A device including: first and second input units providing first and second input signals of first and second audio tracks, a decomposition unit to decompose the first input audio signal to obtain decomposed signals, a playback unit to start playback of a first output signal obtained from recombining at least first and second decomposed signals at first and second volume levels, respectively, and a transition unit for performing a transition between playback of the first output signal and playback of a second output signal obtained from the second input signal. The transition unit is adapted for reducing the first/second volume levels according to first/second transition functions. The device includes an analyzing unit to analyze an audio signal to determine a song part junction between two song parts. The transition time interval of at least one of the transition functions is set such as to include the song part junction.
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公开(公告)号：US12101066B2
公开(公告)日：2024-09-24
申请号：US18086436
申请日：2022-12-21
申请人： pSemi Corporation
CPC分类号： H03F3/195 , H03F3/68 , H04B1/16 , H03F2200/213 , H03F2200/216 , H03F2200/294 , H03F2200/429 , H03F2200/451
摘要： Methods and devices used in mobile receiver front end to support multiple paths and multiple frequency bands are described. The presented devices and methods provide benefits of scalability, frequency band agility, as well as size reduction by using one low noise amplifier per simultaneous outputs. Based on the disclosed teachings, variable gain amplification of multiband signals is also presented.
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9.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：US12081253B2
公开(公告)日：2024-09-03
申请号：US18352424
申请日：2023-07-14
CPC分类号： H04B1/16 , H03F3/19 , H03F3/245 , H04L27/06 , H03F2200/451
摘要： A method for calibrating the DC operating point of a PWM receiver circuit is disclosed. The PWM receiving circuit includes an envelope detector having a first resistor string, and includes a bias circuit having a second resistor string and a plurality of switches. The second resistor string is coupled between a supply voltage and a reference voltage and functions as a voltage divider. Each switch, when closed, accesses a second voltage at a node of the second resistor string connected to the closed switch. To perform the calibration process, the plurality of switches is closed one at a time, and the second voltage is compared with a first voltage at a first node of the first resistor string. The switch that, when closed, produces the smallest difference between the first voltage and the second voltage remains closed after the calibration process, and is used for demodulating the PWM signal.
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