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公开(公告)号：US12081227B2
公开(公告)日：2024-09-03
申请号：US17748746
申请日：2022-05-19
发明人： Byungwoo Koo , Sangpil Nam , Sunghan Do , Junsang Park , Jungho Lee , Youngjae Cho , Michael Choi
摘要： An apparatus configured to transmit and receive a radio frequency (RF) signal is provided. The apparatus includes a digital-to-analog converter (DAC) configured to convert a digital signal into an analog signal, a power amplifier configured to amplify the analog signal, and an antenna configured to output, as the RF signal, the amplified analog signal to the outside. The DAC includes a current cell matrix including a plurality of current cells configured to generate the analog signal, a plurality of normal paths configured to control the plurality of current cells to be turned on or off, based on the digital signal, and a plurality of alternative paths configured to selectively consume power, based on a pattern of the digital signal.
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公开(公告)号：US20240291506A1
公开(公告)日：2024-08-29
申请号：US18655900
申请日：2024-05-06
发明人： Qiang Li
CPC分类号： H04B1/005 , H04L27/12 , H04L27/2627 , H04W52/0229
摘要： Example methods and apparatuses are provided. An example method includes generating a radio frequency signal by modulating to-be-transmitted information by using a first frequency and a second frequency. The to-be transmitted information is mapped to a target frequency. Further, the target frequency has an association relationship with the first frequency and the second frequency. The example method further includes sending the radio frequency signal. Another example method includes receiving a radio frequency signal. The radio frequency signal is generated through modulation of information by using a first frequency and a second frequency. Further, the information is mapped to a target frequency, and the target frequency has an association relationship with the first frequency and the second frequency. The example method further includes determining the target frequency by processing the radio frequency signal. The example method further includes obtaining the information by demodulating a signal on the target frequency.
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公开(公告)号：US11956046B2
公开(公告)日：2024-04-09
申请号：US17699715
申请日：2022-03-21
CPC分类号： H04B7/0626 , B60W40/08 , H04B1/005 , B60W2040/0881
摘要： An occupant detection system for an interior cabin area of a vehicle includes one or more signal conversion devices including conversion circuitry and a wireless control module including a multi-band transceiver having two or more transceivers. The wireless control module executes instructions to continuously send, by a first transceiver, signals on a first frequency band. The wireless control module executes instructions to receive, by a second transceiver, signals on a second frequency band from a signal conversion device. The wireless control module compares original training symbols from the signals on the first frequency band with training symbols from the signals on the second frequency band to determine a change in value of in one or more channel state information (CSI) parameters, and determines one or more occupants are present within the interior cabin area of the vehicle based on the change in one or more CSI parameters.
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公开(公告)号：US20240097710A1
公开(公告)日：2024-03-21
申请号：US18085133
申请日：2022-12-20
申请人： Apple Inc.
发明人： Sharad Sambhwani , Wanlu Sun
摘要： Systems and methods described herein may introduce an intermediary device between radio access networks using a first spectrum and user equipment using a second spectrum. The intermediary device may process communication signals from either the first spectrum or the second spectrum into a format usable by the other of the first spectrum or the second spectrum. The intermediary device may be referred to as a multi-radio access technology (multi-RAT) translator.
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公开(公告)号：US11817890B2
公开(公告)日：2023-11-14
申请号：US17007329
申请日：2020-08-31
发明人： Atsushi Takada
摘要： A radio-frequency module includes a first package where a first-transmitter circuit transmits a first transmit signal in a first transmit band based on a first communication standard and a first-receiver circuit receives a first receive signal in a first receive band based on the first communication standard, and a second package where a second-transmitter circuit transmits a second transmit signal in a second transmit band based on a second communication standard and a second-receiver circuit receives a second receive signal in a second receive band based on the second communication standard. In the first package, a third-receiver circuit receives a third receive signal in a third receive band based on a third communication standard and partially overlaps the first receive band. In the second package, the third-transmitter circuit transmits a third transmit signal in a third transmit band based on the third communication standard.
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公开(公告)号：US20190245577A1
公开(公告)日：2019-08-08
申请号：US16248041
申请日：2019-01-15
CPC分类号： H04B1/44 , H03F1/565 , H03F3/24 , H03F2200/111 , H04B1/005 , H04B1/0458 , H04B1/0475 , H04B1/0483 , H04B2001/0408
摘要： In an embodiment, an apparatus includes a first radio frequency (RF) signal path and a second RF signal path. The first RF signal path can provide a first RF signal when active and the second RF signal path can provide a second RF signal when active. The second RF signal path can include a matching network with a load impedance configured to prevent a resonance in the second RF signal path due to coupling with the first RF signal path when the first RF signal path is active.
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公开(公告)号：US20190190546A1
公开(公告)日：2019-06-20
申请号：US16285408
申请日：2019-02-26
CPC分类号： H04B1/005 , H04L25/02 , H04W72/0453 , H04W88/06 , H04W88/08
摘要： A communication unit includes the following elements. A first transmit circuit outputs a first signal or a second signal from a first input signal. A first amplifier amplifies the first signal and outputs a first amplified signal. A first signal generating circuit generates a third signal having a frequency higher than a frequency of the second signal, based on the second signal and a first reference signal. A first filter circuit receives the third signal and allows one of a frequency component representing a sum of the frequency of the second signal and a frequency of the first reference signal and a frequency component representing a difference therebetween to pass through the first filter circuit and attenuates the other one of the frequency components. A second amplifier amplifies the third signal output from the first filter circuit and outputs a second amplified signal.
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公开(公告)号：US20190044547A1
公开(公告)日：2019-02-07
申请号：US15758917
申请日：2015-10-14
发明人： Andreas NILSSON , Sven PETERSSON
CPC分类号： H04B1/005 , H03F3/24 , H04B1/0475 , H04B1/0483 , H04B1/40 , H04B2001/0408
摘要： The present disclosure relates to a wireless communication network node comprising at least one antenna arrangement, at least one radio arrangement, at least one power splitter arrangement and at least one power amplifier. Each antenna arrangement comprises at least one antenna device, and each power splitter arrangement comprises an input port and at least two output ports. Each of said at least one power amplifier is connected to a corresponding input port, and, for each power splitter arrangement, at least two output ports are connected to at least one corresponding antenna device via a corresponding multi-band filter for each of said output ports. Each multi-band filter is arranged for at least two frequency bands.
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公开(公告)号：US20180367167A1
公开(公告)日：2018-12-20
申请号：US15781743
申请日：2016-11-17
发明人： Boris SOROKOPUD , Yehuda EDER , Yonatan MANOR
CPC分类号： H04B1/005 , H03H9/6406 , H03H9/72
摘要： Multi-channel communication devices and methods are provided, which employ a filter bank, connected between antenna(s) and wideband converter(s), that comprises many narrowband surface acoustic wave (SAW) filters having respective distinct frequency bands within a bandwidth of the wideband converter(s). For example, devices may be configured as multi-channel receivers with SAW filters replacing current heterodyne circuitry and achieving effective separation of reception channel and effective attenuation of adjacent blocking signals in a compact device. In other examples, devices may be configured as multi-channel transmitters and/or transceivers, possibly having a variable number of channels, to realize compact multi-channel radio.
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公开(公告)号：US20180262233A1
公开(公告)日：2018-09-13
申请号：US15759479
申请日：2015-09-25
CPC分类号： H04B1/525 , H04B1/005 , H04B1/0475 , H04B1/406 , H04B15/00 , H04L5/0062 , H04W24/10 , H04W88/06
摘要： There are provided measures for reduction of in-device co-existence interference. Such measures exemplarily comprise (in a mobile network scenario allowing co-operation of a first radio access technology with a second radio access technology) detecting a need to avoid an in-device co-existence interference in relation to said co-operation, and performing at least one action for avoiding the in-device co-existence interference.
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