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公开(公告)号：JP2005094502A
公开(公告)日：2005-04-07
申请号：JP2003326684
申请日：2003-09-18
Applicant: Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
Inventor： OKAMOTO NAOKI , ITO JUNJI
CPC classification number: H03G1/0023 , H03G3/3063 , H03G11/08 , H03G2201/103 , H03G2201/206 , H03G2201/307
Abstract: PROBLEM TO BE SOLVED: To prevent the occurrence of saturated operations in the frequency conversion circuit of a reception circuit included in a radio communication device.
SOLUTION: In the reception circuit, an antenna 11 receives a high-frequency signal in a prescribed frequency band. A level changing means 13 changes the signal level of the high-frequency signal received by the antenna. A post-stage circuit 14 applies prescribed signal processing to the high-frequency signal whose signal level is changed in the level changing means 13. A detector 32 detects the signal level of the high-frequency signal to which the signal processing is applied in the post-stage circuit 14. A control unit 33 sets a rate of change of the high-frequency signal in the level changing means 13 on the basis of the signal level of the high-frequency signal detected by the detector 32, so that the signal level of the high-frequency signal detected by the detector 32 does not become larger than a prescribed value.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：为了防止在无线电通信装置中包括的接收电路的频率转换电路中发生饱和操作。 解决方案：在接收电路中，天线11接收规定频带的高频信号。 电平改变装置13改变由天线接收的高频信号的信号电平。 后级电路14对电平改变装置13中的信号电平改变的高频信号应用规定的信号处理。检测器32检测在信号处理中施加了信号处理的高频信号的信号电平 后级电路14.控制单元33基于由检测器32检测的高频信号的信号电平来设置电平改变装置13中的高频信号的变化率，使得信号 由检测器32检测的高频信号的电平不会变得大于规定值。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP4574687B2
公开(公告)日：2010-11-04
申请号：JP2008019026
申请日：2008-01-30
Applicant: Okiセミコンダクタ株式会社
Inventor： 博次 赤堀
CPC classification number: H03G3/3068 , H03G2201/204 , H03G2201/206 , H03G2201/305 , H03G2201/307
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公开(公告)号：JP4101805B2
公开(公告)日：2008-06-18
申请号：JP2004553581
申请日：2003-11-14
Applicant: インターデイジタル テクノロジー コーポレーション
Inventor： デミル アルパスラン , ケアニー ケネス , ラクシュミ ナラヤン ジーサ , ハク タンビール , オズルターク ファティ , カザケビッチ レオニド
CPC classification number: H03G3/001 , H03D3/008 , H03D3/009 , H03G3/3068 , H03G3/3089 , H03G2201/103 , H03G2201/202 , H03G2201/302 , H03G2201/307 , H03G2201/508 , H04B1/30 , H04L2027/0016 , H04L2027/0024
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公开(公告)号：JP4083167B2
公开(公告)日：2008-04-30
申请号：JP2004510108
申请日：2002-05-31
Applicant: 富士通株式会社
Inventor： 聡 丸山
CPC classification number: H03F1/3241 , H03F1/3247 , H03F1/52 , H03F3/211 , H03G1/0088 , H03G3/3042 , H03G2201/103 , H03G2201/206 , H03G2201/307 , H03G2201/504
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75.发明专利
公开(公告)号：JP2006506900A
公开(公告)日：2006-02-23
申请号：JP2004553581
申请日：2003-11-14
Inventor： デミル アルパスラン , ケアニー ケネス , ラクシュミ ナラヤン ジーサ , ハク タンビール , オズルターク ファティ , カザケビッチ レオニド
CPC classification number: H03G3/001 , H03D3/008 , H03D3/009 , H03G3/3068 , H03G3/3089 , H03G2201/103 , H03G2201/202 , H03G2201/302 , H03G2201/307 , H03G2201/508 , H04B1/30 , H04L2027/0016 , H04L2027/0024
Abstract: アナログ無線（１００）の低価格で品質の低いアナログ無線コンポーネント（１０５）の許容誤差が原因となるパフォーマンスの低下を補償（ｃｏｍｐｅｎｓａｔｅ）するために、未来システムアーキテクチャ（ＦＳＡ）無線通信トランシーバでは、多くのデジタル信号処理技術を使用してそうしたアナログコンポーネントの不備を補償しており、結果として最新仕様を緩和できる。 デジタルドメイン内で自動ゲイン制御（１１０）機能が提供され、高度な位相と振幅の補償、および他の多くの無線周波数パラメータが提供される。
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Patent Agency Ranking
公开(公告)号：US20230370029A1
公开(公告)日：2023-11-16
申请号：US18359718
申请日：2023-07-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： William Roeckner , Terrie McCain , Matthew Miller
CPC classification number: H03F3/245 , H03F1/56 , H03G3/3036 , H03F2200/294 , H03F2200/451 , H03F2200/255 , H03G2201/103 , H03G2201/307
Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for a programmable input impedance circuit for a radio frequency (RF) low noise amplifier (LNA) including a high impedance mode circuit and a low impedance mode circuit. The high impedance mode circuit includes an inductor-degenerated transconductor transistor, an inductor selectively coupled between a source of the inductor-degenerated transconductor transistor and a ground, and a capacitor coupled between a gate of the inductor-degenerated transconductor transistor and the source of the inductor-degenerated transconductor transistor. The low impedance mode circuit includes a shunt resistor selectively coupled between an RF input source and an alternating current (AC) ground.
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公开(公告)号：US20230344396A1
公开(公告)日：2023-10-26
申请号：US18044733
申请日：2021-09-02
Applicant: Sony Semiconductor Solutions Corporation
Inventor： Shinichi Tanabe
CPC classification number: H03G3/3036 , H04B1/16 , H03G2201/103 , H03G2201/307
Abstract: The present technique pertains to a signal processing apparatus, a signal processing method, and a receiving apparatus that enable gain control to be appropriately performed on various interfering signals.
An amplifier controls a gain according to a count value to amplify a signal, and a comparator compares the signal outputted by the amplifier with the count value. An accumulator counts the count value according to an output from the comparator. The present technique can be applied to, for example, a receiving apparatus that receives an RF signal for a television broadcast.-
公开(公告)号：US20230344391A1
公开(公告)日：2023-10-26
申请号：US17726651
申请日：2022-04-22
Applicant: Qorvo US, Inc.
Inventor： Baker Scott , Mihai Murgulescu , George Maxim , Padmmasini Desikan
CPC classification number: H03F3/19 , H03G3/3036 , H03G3/001 , H03F2200/451 , H03F2200/294 , H03G2201/103 , H03G2201/307
Abstract: Disclosed is a low noise amplifier system. Included is a main amplifier having a main input coupled to a RF input and a main output connected to an RF output and an impedance amplifier having an impedance input coupled to the RF input and an impedance output coupled to the RF output, wherein the impedance amplifier is configured to provide input impedance matching to the main amplifier. The impedance amplifier also provides a first noise path that passes through the impedance amplifier such that the noise generated by the impedance amplifier is substantially out of phase with the noise that passes through a second noise path that passes through the main amplifier.
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公开(公告)号：US20230344390A1
公开(公告)日：2023-10-26
申请号：US17660172
申请日：2022-04-21
Applicant: QUALCOMM Incorporated
Inventor： Alaaeldien Mohamed Abdelrazek Medra , Xinmin Yu , Yunfei Feng
CPC classification number: H03F3/19 , H03G3/3036 , H04B1/04 , H03F2200/294 , H03F2200/451 , H03G2201/103 , H03G2201/307
Abstract: This disclosure provides systems, methods, and devices for wireless communication that support low noise amplification of mmWave radio frequency (RF) signals. In a first aspect, a low noise amplifier includes a first stage amplifier; a second stage amplifier; a configurable first stage bypass coupled between a first input and a first output of the first stage amplifier; and a configurable second stage bypass coupled between a second input and a second output of the second stage amplifier. Other aspects and features are also claimed and described.
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公开(公告)号：US11722125B2
公开(公告)日：2023-08-08
申请号：US18087052
申请日：2022-12-22
Applicant: Reach Power, Inc.
Inventor： Asmita Dani , Christopher Joseph Davlantes
CPC classification number: H03K3/012 , H02M7/217 , H03F3/19 , H03G3/3036 , H03F2200/451 , H03G2201/103 , H03G2201/307
Abstract: A bidirectional RF circuit, preferably including a plurality of terminals, a switch, a transistor, a coupler, and a feedback network. The circuit can optionally include a drain matching network, an input matching network, and/or one or more tuning inputs. In some variations, the circuit can optionally include one or more impedance networks, such as an impedance network used in place of the feedback network; in some such variations, the circuit may not include a coupler, switch, and/or input matching network. A method for circuit operation, preferably including operating in an amplifier mode, operating in a rectifier mode, and/or transitioning between operation modes.
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