CN101167258B - 自动增益控制方法 - Google Patents
自动增益控制方法 Download PDFInfo
- Publication number
- CN101167258B CN101167258B CN2005800496133A CN200580049613A CN101167258B CN 101167258 B CN101167258 B CN 101167258B CN 2005800496133 A CN2005800496133 A CN 2005800496133A CN 200580049613 A CN200580049613 A CN 200580049613A CN 101167258 B CN101167258 B CN 101167258B
- Authority
- CN
- China
- Prior art keywords
- electric field
- mentioned
- agc
- field strength
- threshold value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000005684 electric field Effects 0.000 claims description 123
- 238000012360 testing method Methods 0.000 abstract description 6
- 230000003213 activating effect Effects 0.000 abstract 1
- 230000009471 action Effects 0.000 description 15
- 230000006870 function Effects 0.000 description 10
- 230000035945 sensitivity Effects 0.000 description 8
- 238000001514 detection method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000012886 linear function Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012887 quadratic function Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/109—Means associated with receiver for limiting or suppressing noise or interference by improving strong signal performance of the receiver when strong unwanted signals are present at the receiver input
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
- H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
Abstract
Description
Claims (3)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP129395/2005 | 2005-04-27 | ||
JP2005129395 | 2005-04-27 | ||
PCT/JP2005/022721 WO2006117894A1 (ja) | 2005-04-27 | 2005-12-06 | 自動利得制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101167258A CN101167258A (zh) | 2008-04-23 |
CN101167258B true CN101167258B (zh) | 2011-04-20 |
Family
ID=37307701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2005800496133A Expired - Fee Related CN101167258B (zh) | 2005-04-27 | 2005-12-06 | 自动增益控制方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7991371B2 (zh) |
JP (1) | JP4387435B2 (zh) |
CN (1) | CN101167258B (zh) |
GB (1) | GB2441065A (zh) |
TW (1) | TW200642262A (zh) |
WO (1) | WO2006117894A1 (zh) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007019900A (ja) * | 2005-07-08 | 2007-01-25 | Casio Comput Co Ltd | 放送受信装置および放送受信方法 |
JP5076923B2 (ja) * | 2008-01-25 | 2012-11-21 | 株式会社デンソー | 無線受信装置 |
JP2010004286A (ja) * | 2008-06-19 | 2010-01-07 | Sharp Corp | 高周波受信装置、放送受信機、および高周波受信装置の利得制御方法 |
JP4715926B2 (ja) * | 2009-01-14 | 2011-07-06 | カシオ計算機株式会社 | 電波受信装置 |
JP4816764B2 (ja) | 2009-05-28 | 2011-11-16 | カシオ計算機株式会社 | 電波受信装置 |
US9544862B2 (en) * | 2013-06-21 | 2017-01-10 | Telefonaktiebolaget L M Ericsson (Publ) | Method and device for performing automatic gain control |
WO2018068265A1 (en) * | 2016-10-13 | 2018-04-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and device for beam forming |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1599241A (zh) * | 2003-09-18 | 2005-03-23 | 松下电器产业株式会社 | 接收电路 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62189806A (ja) * | 1986-02-17 | 1987-08-19 | Sanyo Electric Co Ltd | Rf agc回路 |
JP3505295B2 (ja) * | 1995-09-21 | 2004-03-08 | 富士通テン株式会社 | テレビジョン放送受信機 |
JPH10256851A (ja) * | 1997-03-10 | 1998-09-25 | Alps Electric Co Ltd | 利得制御回路 |
JP3604274B2 (ja) * | 1998-03-10 | 2004-12-22 | パイオニア株式会社 | Rf−agc回路を備えた受信機 |
KR100713395B1 (ko) * | 1999-10-27 | 2007-05-03 | 삼성전자주식회사 | 자동 이득제어 시스템의 비선형 왜곡 제거 장치 및 방법 |
US6625433B1 (en) * | 2000-09-29 | 2003-09-23 | Agere Systems Inc. | Constant compression automatic gain control circuit |
US7313377B2 (en) * | 2003-04-15 | 2007-12-25 | Rf Monolithics, Inc. | System, method, and circuit for dynamic range enhancement in a communication system |
US7227916B2 (en) * | 2003-08-26 | 2007-06-05 | Freescale Semiconductor, Inc. | Receiver with automatic gain control that operates with multiple protocols and method thereof |
US20050266805A1 (en) * | 2004-05-28 | 2005-12-01 | Jensen Henrik T | Digital delta sigma modulator and applications thereof |
-
2005
- 2005-12-06 GB GB0721116A patent/GB2441065A/en not_active Withdrawn
- 2005-12-06 JP JP2007514456A patent/JP4387435B2/ja not_active Expired - Fee Related
- 2005-12-06 CN CN2005800496133A patent/CN101167258B/zh not_active Expired - Fee Related
- 2005-12-06 WO PCT/JP2005/022721 patent/WO2006117894A1/ja not_active Application Discontinuation
- 2005-12-27 TW TW094146769A patent/TW200642262A/zh unknown
-
2007
- 2007-10-26 US US11/925,506 patent/US7991371B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1599241A (zh) * | 2003-09-18 | 2005-03-23 | 松下电器产业株式会社 | 接收电路 |
Also Published As
Publication number | Publication date |
---|---|
JP4387435B2 (ja) | 2009-12-16 |
CN101167258A (zh) | 2008-04-23 |
WO2006117894A1 (ja) | 2006-11-09 |
GB2441065A (en) | 2008-02-20 |
US20080090538A1 (en) | 2008-04-17 |
US7991371B2 (en) | 2011-08-02 |
GB0721116D0 (en) | 2007-12-05 |
TW200642262A (en) | 2006-12-01 |
JPWO2006117894A1 (ja) | 2008-12-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20080523 Address after: Japan in Niigata County Applicant after: Niigata Precision Co., Ltd. Co-applicant after: Ricoh Co., Ltd. Address before: Japan in Niigata County Applicant before: Niigata Seimitsu Co., Ltd. |
|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
ASS | Succession or assignment of patent right |
Owner name: RICOH CO., LTD. Free format text: FORMER OWNER: NSC CO., LTD. Effective date: 20091113 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20091113 Address after: Tokyo, Japan Applicant after: Ricoh Co., Ltd. Address before: Tokyo, Japan Applicant before: NSC Corporation Co-applicant before: Ricoh Co., Ltd. |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20151206 |
|
EXPY | Termination of patent right or utility model |