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公开(公告)号：US20210266031A1
公开(公告)日：2021-08-26
申请号：US16867591
申请日：2020-05-06
申请人： Jiedong Zhong
发明人： Jiedong Zhong
IPC分类号： H04B1/405 , H04B1/3805 , H04B1/3816
摘要： The present disclosure provides a radio frequency integrated module management system. The radio frequency integrated module management system comprises a ZJD chip and at least two groups of radio frequency module systems. Each group of the radio frequency module systems is connected to the ZJD chip and comprises an antenna, a radio frequency front end, and a radio frequency transceiver. The antenna is connected to the radio frequency transceiver via the radio frequency front end, and the radio frequency transceiver in each group is connected to the ZJD chip.
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52.发明申请公开(公告)号：US20210258035A1
公开(公告)日：2021-08-19
申请号：US17227548
申请日：2021-04-12
发明人： Frank Girardi
IPC分类号： H04B1/405 , H04R3/00 , H04R1/10 , H04L5/14 , H04B1/3827
摘要： A communication system includes a plurality of full duplex transceiver assemblies each having an ON condition and an OFF condition, and configured to be worn by a different user, each of the plurality of full duplex transceiver assemblies having a housing and printed circuit board coupled to the housing, the printed circuit board including a transceiver having a microprocessor. Each microprocessor is configured to emit a different stream of controlling data when the plurality of full duplex transceiver assemblies are in the ON condition, thereby allowing each of the plurality of full duplex transceiver assemblies to communicate among a plurality of different logical channels. Embedded with each different stream of controlling data is a unique identification number for grouping each of the plurality of full duplex transceiver assemblies together.
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公开(公告)号：US20210143861A1
公开(公告)日：2021-05-13
申请号：US17080890
申请日：2020-10-27
发明人： Chia-Yi Lee , Kuan-Yu Shih , Ka-Un Chan
摘要： A transceiver device includes a digital baseband circuit, a first circuit portion, and a second circuit portion. The digital baseband circuit is configured to analyze power of an input signal, in order to generate a first control signal and a second control signal. The first circuit portion has a first gain, and is configured to be selected according to the first control signal to process the input signal to generate output signals. The second circuit portion has a second gain higher than the first gain, and is configured to be selected according to the second control signal to process the input signal to generate the output signals. The first circuit portion includes an N-way filter circuit, and the N-way filter circuit is configured to modulate the input signal according to first oscillating signals to perform a filtering operation.
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公开(公告)号：US10910998B2
公开(公告)日：2021-02-02
申请号：US16135224
申请日：2018-09-19
申请人： NXP B.V.
发明人： Siamak Delshadpour , Ahmad Yazdi , Xueyang Geng
IPC分类号： H03C3/09 , H04B1/10 , H03L7/099 , H03L7/089 , H03G3/34 , H03K5/24 , H03H11/12 , H04B17/11 , H04B1/16 , H04B17/21 , H04B1/04 , H04B1/405
摘要： Various embodiments relate to a method for calibration of a center frequency of a BPF in an FSK transceiver, the method including the steps of filtering a carrier frequency signal by the BPF to produce a filtered signal, detecting, by a phase-frequency detector (“PFD”), a difference in phase between the carrier frequency signal and the filtered signal from the BPF, sweeping a calibration code of the BPF, detecting a transition in the sign of the phase difference and capturing a calibration code associated with the transition in the sign of the phase difference for calibration of the BPF.
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公开(公告)号：US10812116B1
公开(公告)日：2020-10-20
申请号：US16459221
申请日：2019-07-01
发明人： Rachid El-Assir , Nabil Ghanem
IPC分类号： H04B1/00 , G01S19/00 , H04B1/7087 , H04B1/405
摘要： A system for calibration of a global navigation satellite system simulator, comprising a radio frequency component, a digital-to-analog conversion component, and a digital baseband component. The digital baseband component is configured to provide signals assigned to at least two sub-bands, each representing a global navigation satellite system band. The digital baseband component comprises at least one numerically controlled oscillator component that is configured to synchronize the signals assigned to the at least two sub-bands in order to provide at least two synchronized sub-bands. The digital baseband component is configured to add the signals assigned to the at least two synchronized sub-bands. Further, a method of calibrating a global navigation satellite system simulator is described.
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公开(公告)号：US10734970B2
公开(公告)日：2020-08-04
申请号：US16179004
申请日：2018-11-02
发明人： Kenichi Ishizuka
摘要： A phase shifter module includes a base material, a common terminal, and individual terminals, the common terminal and the individual terminals being provided at the base material. Inside the base material, phase shifters that are connected between the individual terminals and the common terminal, respectively, are provided. The phase shifters each include a primary coil and a secondary coil that is coupled to the primary coil by magnetic field coupling and define a transformer phase shifter. With this configuration, a phase shifter module for use with SAW filters while reducing or preventing interference among the SAW filters, a multiplexer/demultiplexer that includes the phase shifter module, and a communication apparatus that includes the phase shifter module, are obtained.
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公开(公告)号：US10469120B1
公开(公告)日：2019-11-05
申请号：US16145614
申请日：2018-09-28
申请人： Apple Inc.
发明人： Berke Cetinoneri , Ioannis Sarkas , Qishan Yu
摘要： Systems and methods for improving communication reliability of a radio frequency system that includes an antenna integrated circuit, which includes an antenna amplifier unit that outputs a first analog electrical signal that indicates data, a transceiver integrated circuit implemented using a first semiconductor manufacturing technique, in which the transceiver integrated circuit includes a transceiver amplifier unit that outputs a second analog electrical signal that indicates the data, and a driver integrated circuit implemented using a second semiconductor manufacturing technique. The driver integrated circuit includes an intermediate amplifier unit, which outputs a third analog electrical signal that indicates the data, and intermediate routing circuitry, which routes the first analog electrical signal to the intermediate amplifier unit and the third analog electrical signal to the transceiver integrated circuit during reception and routes the second analog electrical signal to the intermediate amplifier unit and the third analog electrical to the antenna integrated circuit during transmission.
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58.发明授权公开(公告)号：US09838070B1
公开(公告)日：2017-12-05
申请号：US15527955
申请日：2014-12-22
发明人： Wei Liang , Haibin Yu , Bo Yang , Xiaoling Zhang
CPC分类号： H04B1/713 , H04B1/405 , H04B1/7143 , H04B2001/1045 , H04W16/02 , H04W72/0426 , H04W72/12
摘要： The present invention relates to wireless network technology and presents a permutation group-based channel rendezvous method for a multi-antenna cognitive radio network, allowing a cognitive user equipped with multiple antennas to achieve blind channel rendezvous without the need for clock synchronisation. The present invention defines channel hopping sequences whilst making full use of properties such as channel diversity, the closure nature of permutation groups, and multi-antenna concurrency; based on the permutation groups obtained by rotating a regular polyhedron or a regular polygon around different angles according to different types of axes of symmetry, cyclical splicing is implemented, and different antennas can, according to different rules, independently generate hopping sequences and switching channels; the sequence generating methods are various and flexible; the use of parallel search ensures that deterministic rendezvous with other cognitive users is achieved as quickly as possible and as much as possible in a limited time; and the present method is a highly efficient blind channel rendezvous method having wide applicability and suitable for use in large-scale wireless networks.
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59.发明申请公开(公告)号：US20170331513A1
公开(公告)日：2017-11-16
申请号：US15527955
申请日：2014-12-22
发明人： Wei LIANG , Haibin YU , Bo YANG , Xiaoling ZHANG
CPC分类号： H04B1/713 , H04B1/405 , H04B1/7143 , H04B2001/1045 , H04W16/02 , H04W72/0426 , H04W72/12
摘要： The present invention relates to wireless network technology and presents a permutation group-based channel rendezvous method for a multi-antenna cognitive radio network, allowing a cognitive user equipped with multiple antennas to achieve blind channel rendezvous without the need for clock synchronisation. The present invention defines channel hopping sequences whilst making full use of properties such as channel diversity, the closure nature of permutation groups, and multi-antenna concurrency; based on the permutation groups obtained by rotating a regular polyhedron or a regular polygon around different angles according to different types of axes of symmetry, cyclical splicing is implemented, and different antennas can, according to different rules, independently generate hopping sequences and switching channels; the sequence generating methods are various and flexible; the use of parallel search ensures that deterministic rendezvous with other cognitive users is achieved as quickly as possible and as much as possible in a limited time; and the present method is a highly efficient blind channel rendezvous method having wide applicability and suitable for use in large-scale wireless networks.
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公开(公告)号：US09614572B2
公开(公告)日：2017-04-04
申请号：US14622077
申请日：2015-02-13
发明人： David J. Ley , Mark A. Antilla
IPC分类号： H04B1/40 , 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.
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