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公开(公告)号：US20240322854A1
公开(公告)日：2024-09-26
申请号：US18615368
申请日：2024-03-25
CPC分类号： H04B1/405 , H04L5/1469
摘要： In a time division duplex (TDD) communication network, a signal conditioning device includes a first port and a second port for connection on a communications link. A downlink path is adapted for transporting downlink signals from the first port to the second port, and an uplink path is adapted for transporting uplink signals from the second port to the first port. A passive, asymmetric attenuator is adapted for attenuating a signal on the uplink path differently than the signal on the downlink path.
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公开(公告)号：US20240154637A1
公开(公告)日：2024-05-09
申请号：US18549523
申请日：2022-03-10
申请人： AutoNetworks Technologies, Ltd. , Sumitomo Wiring Systems, Ltd. , Sumitomo Electric Industries, Ltd.
发明人： Chaoran LI , Takashi MAEHATA
IPC分类号： H04B1/3822 , H04B1/405
CPC分类号： H04B1/3822 , H04B1/405
摘要： An onboard transmission system includes: a vehicle interior-side communication unit configured to generate a digital signal that includes a plurality of pieces of data respectively corresponding to a plurality of different frequency bands, and transmit the generated digital signal to one transmission path, and a roof-side communication unit configured to distribute the digital signal received from the transmission path or a signal that is based on the digital signal received from the transmission path, into signals for a plurality of wireless machines respectively corresponding to the plurality of frequency bands.
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公开(公告)号：US20240039651A1
公开(公告)日：2024-02-01
申请号：US17875241
申请日：2022-07-27
发明人： Matt KOMICH
摘要： The present disclosure relates to radio stations. More particularly, this disclosure describes a radio tuner system using metadata that filters broadcasts based on metadata. Through this, the system may automatically identify those radio stations playing current content for a specific user. In one illustrative embodiment, a third-party server which provides on-demand music streaming services may provide the metadata. The metadata may be accessed and used to filter out those incoming broadcasts from the radio stations. Formats or other topics of the radio stations may be identified that fit user preferences identified within the metadata received from the third-party server and those broadcasts from the radio stations would be provided to the user. These identified broadcasts may then be output to an audio system.
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公开(公告)号：US10892796B1
公开(公告)日：2021-01-12
申请号：US16825235
申请日：2020-03-20
发明人： James B. West , Vadim Olen
IPC分类号： H04B1/7163 , H03M1/00 , H04B1/405 , H04B1/00
摘要： A log periodic antenna is used in a communication system that utilizes multiple channels to drive distinct frequency sub-bands within an ultra-wide band. The driving elements are active and specifically tuned to the operating sub-band of the channel. Each driving element may be synchronized via a single local oscillator. Driving element includes a modem and analog-to-digital converters to digitize a portion of the signal intended for the sub-band within the channel. Actively driven log periodic antennas can jam an ultra-wide band of the spectrum.
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公开(公告)号：US10608717B2
公开(公告)日：2020-03-31
申请号：US15636883
申请日：2017-06-29
申请人： FUJITSU LIMITED
发明人： Daisuke Jitsukawa , Takashi Dateki
摘要： A transmission control device includes a memory and a processor connected to the memory. The processor executes a process including: selecting a reference transmission point as a starting point of generating a link from among a plurality of transmission points of which each wirelessly transmits a signal; sequentially selecting the transmission points one by one for each hierarchy corresponding to a number of hops from the selected reference transmission point and retrieving ones of the transmission points for which radio quality between the ones and the selected transmission point satisfies a predetermined criterion; and generating a link between the selected transmission point and a transmission point, among the transmission points obtained as a result at the retrieving, not connected to others of the transmission points to connect the two transmission points.
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公开(公告)号：US20200091954A1
公开(公告)日：2020-03-19
申请号：US16571866
申请日：2019-09-16
发明人： James C. Harris
摘要： A discrete spectrum (DS) signal transmitter includes a first circuit element comprising a DS signal generator that generates a plurality of DS signals, each DS signal having a different DS frequency, each DS frequency being (a) a harmonic of a fundamental frequency or (b) the fundamental frequency. A second circuit element receives as an input the DS signals and that generates as an output (a) a finite summation of the DS signals or (b) pulses that represent a mathematical equivalent of a summation of an infinite number of the DS signals. An antenna is electrically coupled to an output of the second circuit element. The analog DS signals transmitted by the DS signal transmitter are received by a DS signal receiver that converts the analog DS signals to DS discrete signals and performs a fast Fourier transform of the DS discrete signals.
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7.发明申请APPARATUS AND METHOD FOR EXTENDING FEATURE SELECTION IN A COMMUNICATION SYSTEM 有权用于在通信系统中扩展特征选择的装置和方法公开(公告)号：US20160241298A1
公开(公告)日：2016-08-18
申请号：US14622077
申请日：2015-02-13
发明人： DAVID J. LEY , MARK A. ANTILLA
IPC分类号： H04B1/405 , H04B1/3827 , H01H19/14
CPC分类号： H04B1/405 , H01H19/14 , H01H2221/01 , H04B1/3833
摘要： A method and apparatus for expanding control switch selectivity in a portable communication system is provided. A rotary control switch is remapped based on the presence of two or more switches in the system thereby increasing the number of user selectable switch features, such as user selectable radio channels. The remapping can occur automatically without the need for hardware changes. The improved user interface can extend channel range selection in a portable communication system having a portable radio and radio accessory.
摘要翻译： 提供了一种用于在便携式通信系统中扩展控制开关选择性的方法和装置。 基于系统中存在两个或更多个开关来重新映射旋转控制开关，从而增加用户可选开关特征的数量，诸如用户可选择的无线电信道。 重新映射可以自动进行而不需要硬件更改。 改进的用户界面可以在具有便携式无线电和无线电附件的便携式通信系统中扩展信道范围选择。
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公开(公告)号：US20150236847A1
公开(公告)日：2015-08-20
申请号：US14610271
申请日：2015-01-30
摘要： A signal-generating circuit includes a voltage-controlled oscillator that generates an oscillated signal; a first frequency divider that generates a first divided signal by dividing the oscillated signal; a second frequency divider that generates a second divided signal by dividing the divided signal; a phase comparator that receives as input the second divided signal and a reference signal and outputs two signals corresponding to a phase difference therebetween; a loop filter that extracts a low frequency signal between the two signals to be output to the voltage-controlled oscillator; a third frequency divider that generates a third divided signal by dividing the first divided signal; a first frequency converter that generates a first frequency converted signal by multiplying the oscillated signal by the third divided signal; and a first multiplier that generates a multiplied signal by multiplying the first frequency converted signal by a first multiplication number.
摘要翻译： 信号发生电路包括产生振荡信号的压控振荡器; 第一分频器，通过分频振荡信号产生第一分频信号; 第二分频器，通过划分分频信号产生第二分频信号; 相位比较器，接收第二分频信号和参考信号作为输入，并输出对应于它们之间的相位差的两个信号; 环路滤波器，提取要输出到压控振荡器的两个信号之间的低频信号; 第三分频器，通过划分第一分频信号产生第三分频信号; 第一频率转换器，其通过将所述振荡信号乘以所述第三分频信号来产生第一频率转换信号; 以及第一乘法器，通过将第一频率转换信号乘以第一乘法数来产生相乘的信号。
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公开(公告)号：US12088332B2
公开(公告)日：2024-09-10
申请号：US17268615
申请日：2019-08-08
发明人： Steffen Schmitz , Jörg Plechinger
IPC分类号： H04B1/3827 , H04B1/405 , H04W4/70 , H04W60/00 , H04W72/51
CPC分类号： H04B1/3827 , H04B1/405 , H04W4/70 , H04W60/00 , H04W72/51
摘要： Apparatuses, methods, and computer programs for a mobile transceiver and for a network entity, a mobile transceiver, a network entity and a system, an apparatus, a method, and a computer program for a mobile transceiver. The method for a mobile transceiver to communicate in a mobile communication system includes providing information on a field of application of the mobile transceiver to the mobile communication system.
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公开(公告)号：US11309932B1
公开(公告)日：2022-04-19
申请号：US17303265
申请日：2021-05-25
申请人： InPlay, Inc.
发明人： Ruifeng Liu , Russell Mohn
IPC分类号： H04B1/405 , H04B1/3805 , H04B1/04
摘要： Semiconductor chips are made increasingly smaller, thanks to improved design techniques and process scaling. Sometimes the bottleneck is not the chip itself but the package size due to many necessary pins. To help reduce the number of package pins, the chip should use less pins by sharing or reusing pins if possible. Therefore, single-ended RF input/output is used for transceiver, and the same pin is shared between RX and TX. A receiver (RX)-transmitter (TX) impedance co-matching method uses multiple bondwires for transceivers sharing one input/output (I/O) pin between RX and TX. The RX input impedance and TX output impedance are transformed closer to each other or even to the same impedance, which makes it possible to get the best RX and TX performance with just one matching network. The chip area is also saved without using on-chip inductors.
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