公开(公告)号：US20080220738A1

公开(公告)日：2008-09-11

申请号：US12149636

申请日：2008-05-06

申请人： Kumiko Takikawa ,  Satoshi Tanaka ,  Yoshiyasu Tashiro

发明人： Kumiko Takikawa ,  Satoshi Tanaka ,  Yoshiyasu Tashiro

IPC分类号： H04B1/28

CPC分类号： H01L23/66 ,  H01L23/48 ,  H01L23/4952 ,  H01L23/49541 ,  H01L23/49575 ,  H01L24/06 ,  H01L27/0203 ,  H01L29/41708 ,  H01L2224/04042 ,  H01L2224/05093 ,  H01L2224/05553 ,  H01L2224/05554 ,  H01L2224/05624 ,  H01L2224/06 ,  H01L2224/16225 ,  H01L2224/32225 ,  H01L2224/48247 ,  H01L2224/48465 ,  H01L2224/73204 ,  H01L2924/01004 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01013 ,  H01L2924/01014 ,  H01L2924/01033 ,  H01L2924/01082 ,  H01L2924/014 ,  H01L2924/1305 ,  H01L2924/1306 ,  H01L2924/13091 ,  H01L2924/14 ,  H01L2924/15787 ,  H01L2924/181 ,  H01L2924/30107 ,  H03F3/19 ,  H03F3/68 ,  H03F2200/294 ,  H03F2200/429 ,  H03F2200/451 ,  H04B1/0075 ,  H04W52/52 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2924/00012

摘要： A wireless communication system includes: a filter; and a semiconductor chip including a signal processing integrated circuit having an amplifier, wherein a main surface of the semiconductor chip is provided with a plurality of electrode terminals along an edge portion thereof; wherein the amplifier has a transistor including a control electrode, a first electrode through which a signal is outputted, and a second electrode to which a voltage is applied; wherein the control electrode, the first electrode and the second electrode of the transistor are connected to the electrode terminals, respectively; and wherein none of wirings are arranged between the electrode terminals and placements of the control electrode, the first electrode and the second electrode, making space between the electrodes and the electrode terminals narrow.

摘要翻译： 无线通信系统包括：滤波器; 以及包括具有放大器的信号处理集成电路的半导体芯片，其中半导体芯片的主表面沿其边缘部分设置有多个电极端子; 其中放大器具有晶体管，其包括控制电极，输出信号的第一电极和施加电压的第二电极; 其中所述晶体管的所述控制电极，所述第一电极和所述第二电极分别连接到所述电极端子; 并且其中在所述电极端子和所述控制电极，所述第一电极和所述第二电极的布置之间没有布线，使得所述电极和所述电极端子之间的空间变窄。

公开(公告)号：US20060183447A1

公开(公告)日：2006-08-17

申请号：US11333806

申请日：2006-01-17

申请人： Nicholas Cowley ,  Peter Coe

发明人： Nicholas Cowley ,  Peter Coe

IPC分类号： H04B7/08 ,  H04B1/18

CPC分类号： H04B1/18 ,  H03D7/165 ,  H04B1/0064 ,  H04B1/0075

摘要： A radio frequency tuner is provided having inputs for receiving signals in common or overlapping frequency ranges from distribution networks. Each input is connected to a respective first converter, for example performing upconversion to a first intermediate frequency above the RF frequency ranges of the incoming signals. The first frequency changers are arranged to be active one at a time. The outputs of the first frequency changers are supplied to a second frequency changer which performs downconversion on the output signal of the active first converter to convert a selected channel from one of the distribution networks to a second intermediate frequency. Sufficient RF isolation may therefore be provided without requiring mechanical switching components such as RF relays.

公开(公告)号：US20240305322A1

公开(公告)日：2024-09-12

申请号：US18361697

申请日：2023-07-28

申请人： Analog Devices International Unlimited Company

发明人： Kevin Chuang ,  Marwen Ben Rejeb ,  Ahmed M.R.A Raslan ,  Xiao Yu Wang ,  Kaustubh Pradeepkumar Mundhada

IPC分类号： H04B1/04 ,  H04B1/00 ,  H04L27/26

CPC分类号： H04B1/0475 ,  H04B1/0075 ,  H04L27/2614 ,  H04B2001/0408

摘要： An adaptable, generalized digital predistortion system that can increase the accuracy of the distortion applied to a power amplifier input signal is disclosed. Further, the digital predistortion system can be implemented using a reduced circuit area by reducing a number of coefficients used by the models applied to generate the distortion compensation signal. Further, the system can implement an improved digital predistortion adaptation engine that can improve one or more of the following metrics of a complete radio frequency (RF) analog front-end radio signal chain: error vector magnitude (EVM), adjacent channel leakage ratio (ACLR), spectrum emission mask (SEM), and power consumption of the circuits and systems. An example of circuits and systems is a radio frequency power amplifier (PA).

公开(公告)号：US20240305321A1

公开(公告)日：2024-09-12

申请号：US18668397

申请日：2024-05-20

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Karthik SUBBURAJ ,  Pranav SINHA ,  Mayank Kumar SINGH ,  Rittu SACHDEV ,  Karan Singh BHATIA ,  Shailesh JOSHI ,  Indu PRATHAPAN

IPC分类号： H04B1/00 ,  H04B1/04 ,  H04B1/10 ,  H04B1/69

CPC分类号： H04B1/0075 ,  H04B1/04 ,  H04B1/1036 ,  H04B1/69 ,  H04B2001/0408 ,  H04B2001/1045 ,  H04B2001/1063 ,  H04B2001/6912

摘要： In a radar system, an intermediate frequency amplifier (IFA) is configured with two high-pass filter stages, each having an amplifier and a configurable impedance component. A control signal is activated as the radar system begins to transmit a chirp signal to lower the impedance of the configurable impedance components during an initial portion of the chirp transmission to achieve faster settling of the IFA output signal. After the initial portion, the control signal deactivates while transmission of the chirp continues to increase the impedance of the configurable impedance components to a level sufficient to effectively perform filtering of unwanted signals received by the radar system.

公开(公告)号：US20240305318A1

公开(公告)日：2024-09-12

申请号：US18432987

申请日：2024-02-05

申请人： Apple Inc.

发明人： Wassim El-Hassan ,  Brian H. Bremer ,  Lydi Smaini ,  Abhinav Dayal ,  Daphne I. Gorman ,  Xuefeng Zhao

IPC分类号： H04B1/00

CPC分类号： H04B1/0064 ,  H04B1/0075

摘要： A wireless communication includes multiple transceivers that may be utilized for wireless communication over multiple frequency ranges. One of the transceivers is communicatively coupled to antennas that may be utilized to transmit or receive wireless signals having frequencies in different portions of one of the frequency ranges.

公开(公告)号：US12052164B2

公开(公告)日：2024-07-30

申请号：US17675350

申请日：2022-02-18

申请人： Starry, Inc.

发明人： Joseph Thaddeus Lipowski ,  Volkan Efe

IPC分类号： H04L12/703 ,  H04B1/00 ,  H04B7/04 ,  H04B7/06 ,  H04B10/2575 ,  H04L12/26 ,  H04L12/28 ,  H04L43/10 ,  H04L45/28 ,  H04Q11/04 ,  H04W72/044 ,  H04W72/0453 ,  H04W84/12 ,  H04W88/10 ,  H04L12/64

CPC分类号： H04L45/28 ,  H04B1/0057 ,  H04B1/0064 ,  H04B1/0075 ,  H04B7/04 ,  H04B7/0617 ,  H04B10/25754 ,  H04B10/25759 ,  H04L12/2885 ,  H04L12/2898 ,  H04L43/10 ,  H04Q11/0471 ,  H04W72/0453 ,  H04W72/046 ,  H04W84/12 ,  H04W88/10 ,  H04L2012/6421 ,  H04L2012/644

摘要： A fixed wireless access network provides for high-frequency data links between aggregation nodes and endpoint nodes. The system further provides for lower frequency wireless data links, which have carrier frequencies less than high-frequency wireless data links. These lower frequency links provide for auxiliary communications between the aggregation nodes and one or more endpoint nodes. During normal operation, the nodes exchange packet data via the high-frequency data links. However, when impairment of the high-frequency data links is detected, the nodes direct the packet data over the low-frequency data links instead until the high-frequency data links are no longer impaired.

公开(公告)号：US12015453B2

公开(公告)日：2024-06-18

申请号：US17360442

申请日：2021-06-28

申请人： SAGEMCOM ENERGY & TELECOM SAS

发明人： Jérôme Barois ,  Clément Terrien

IPC分类号： H04B3/54 ,  H04B1/00 ,  H04B1/7156 ,  H04B3/38

CPC分类号： H04B3/542 ,  H04B1/0075 ,  H04B1/7156 ,  H04B3/38

摘要： A method for transmitting a message from a first node device to a second node device in which the second node device belongs to network neighborhood of the first node device. The first and second node devices belong to an electrical supply network using powerline communications. The first node device begins by fragmenting the message into at least a first fragment and a second fragment. Next it associates a first frequency band of a set of frequency bands with the first fragment and a second frequency band with the second fragment, the first and second frequency bands being different. It then transmits each first and second fragment on the frequency band with which it is associated.

公开(公告)号：US20230268939A1

公开(公告)日：2023-08-24

申请号：US18152360

申请日：2023-01-10

申请人： Samsung Electronics Co., Ltd

发明人： Sangwook HAN ,  Jungwoo Kim ,  Hyunggi Kim

IPC分类号： H04B1/00

CPC分类号： H04B1/0075 ,  H04B1/0057

摘要： An electronic device including an IF transceiver configured to output a first IF signal and an LO signal via an AC-coupled interface, the first IF signal being up-converted from a first baseband signal, and output a second IF signal and a first control signal via a DC-coupled interface, the second IF signal being up-converted from a second baseband signal, and the first control signal being generated based on the LO signal, and an RF module configured to separate the first IF signal and the LO signal obtained via the AC-coupled interface, separate the second IF signal and the first control signal obtained via the DC-coupled interface, generate a first RF signal based on the first IF signal for transmission via an antenna array, and generate a second RF signal based on the second IF signal for transmission via the antenna array.

公开(公告)号：US20230268937A1

公开(公告)日：2023-08-24

申请号：US18087908

申请日：2022-12-23

申请人： FUJI ELECTRIC CO., LTD.

发明人： Keiichi ITOU

IPC分类号： H04B1/00

CPC分类号： H04B1/0007 ,  H04B1/0075

摘要： A transmitter circuit coupled to a receiver circuit through wiring. The transmitter circuit transmits, as an input signal, either a first signal of a rectangular waveform having a logic level that changes according to first data, or a second signal having a slope that changes corresponding to second data. The receiver circuit includes an analog-to-digital (AD) converter receiving the input signal through the wiring, and a processing circuit configured to process an output of the AD converter, to thereby determine whether the input signal is the first signal or the second signal, and upon determining that the input signal is the first signal or a second signal, acquire the first data or the second data based on the logic level of the first signal or the slope of the second signal, as the case may be.

公开(公告)号：US09787388B1

公开(公告)日：2017-10-10

申请号：US15086248

申请日：2016-03-31

申请人： Silicon Laboratories Inc.

发明人： Russell Croman ,  Nebojsa Stanic ,  Michael Johnson ,  Dan B. Kasha ,  Michael R. May

IPC分类号： H04B1/18 ,  H04B7/08 ,  H04B1/00 ,  H04B1/16

CPC分类号： H04B7/08 ,  H04B1/0064 ,  H04B1/0075 ,  H04B1/16

摘要： In an example, a method includes: in a first mode, causing a first tuner of an entertainment system to receive and process a first RF signal from a first antenna configured for a first band to output a first audio signal of a first radio station and causing a second tuner of the entertainment system to receive a second RF signal from a second antenna configured for the first band to determine signal quality metrics for one or more radio stations of the first band; in a second mode, causing the first tuner to output a first signal representation of the first RF signal and causing the second tuner to receive and process the second RF signal to output a second signal representation of the second RF signal; and causing a phase diversity combining circuit to process the first and second signal representations to output an audio signal of the first radio station, without disruption of output from the entertainment system of a broadcast of the first radio station.