DE69230014D1 - Logarithmischer Verstärker für Zwischenfrequenzsignale - Google Patents

Logarithmischer Verstärker für Zwischenfrequenzsignale

Info

Publication number: DE69230014D1
Authority: DE; Germany
Prior art keywords: intermediate frequency; frequency signals; logarithmic amplifier; logarithmic; amplifier
Prior art date: 1991-05-23
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

Application number

DE69230014T

Other languages

English (en)

Other versions

DE69230014T2 (de

Inventor

Katsuji C O Nec Corpora Kimura

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

NEC Corp

Original Assignee

NEC Corp

Priority date (The priority date 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 date listed.)

1991-05-23

Filing date

1992-05-22

Publication date

1999-10-28

1991-05-23 Priority claimed from JP3147769A external-priority patent/JP2692427B2/ja

1991-05-30 Priority claimed from JP3155648A external-priority patent/JP3036121B2/ja

1992-05-22 Application filed by NEC Corp filed Critical NEC Corp

1999-10-28 Application granted granted Critical

1999-10-28 Publication of DE69230014D1 publication Critical patent/DE69230014D1/de

2000-03-23 Publication of DE69230014T2 publication Critical patent/DE69230014T2/de

2012-05-23 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
- H03G7/001—Volume compression or expansion in amplifiers without controlling loop

DE69230014T 1991-05-23 1992-05-22 Logarithmischer Verstärker für Zwischenfrequenzsignale Expired - Fee Related DE69230014T2 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP3147769A JP2692427B2 (ja)	1991-05-23	1991-05-23	Ｃ−ｍｏｓ対数ｉｆ増幅器
JP3155648A JP3036121B2 (ja)	1991-05-30	1991-05-30	擬似対数ｉｆ増幅器

Publications (2)

Publication Number	Publication Date
DE69230014D1 true DE69230014D1 (de)	1999-10-28
DE69230014T2 DE69230014T2 (de)	2000-03-23

Family

ID=26478220

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69230014T Expired - Fee Related DE69230014T2 (de)	1991-05-23	1992-05-22	Logarithmischer Verstärker für Zwischenfrequenzsignale

Country Status (9)

Country	Link
US (1)	US5467046A (de)
EP (2)	EP0514929B1 (de)
KR (1)	KR960015009B1 (de)
AU (2)	AU658182B2 (de)
CA (1)	CA2069243C (de)
DE (1)	DE69230014T2 (de)
ES (1)	ES2136066T3 (de)
HK (1)	HK1009059A1 (de)
SG (1)	SG48040A1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5475342A (en) *	1993-04-19	1995-12-12	Nippon Telegraph And Telephone Corporation	Amplifier for stably maintaining a constant output
GB2281425B (en) *	1993-08-27	1997-10-29	Plessey Semiconductors Ltd	Logarithmic detector
JP2606599B2 (ja) *	1994-09-09	1997-05-07	日本電気株式会社	対数増幅回路
JP2778540B2 (ja) *	1995-07-18	1998-07-23	日本電気株式会社	対数増幅回路
US5790943A (en) *	1995-10-06	1998-08-04	Philips Electronics North America Corporation	Dynamic range extension of a log amplifier with temperature and process compensation
JPH11231954A (ja) *	1998-02-16	1999-08-27	Mitsubishi Electric Corp	内部電源電圧発生回路
IT1316688B1 (it) *	2000-02-29	2003-04-24	St Microelectronics Srl	Moltiplicatore analogico a bassa tensione di alimentazione
US7212041B2 (en) *	2002-12-23	2007-05-01	Intel Corporation	Weighted multi-input variable gain amplifier
DE60335185D1 (de) *	2003-09-02	2011-01-13	St Microelectronics Srl	Logarithmischer linearer CMOS-Verstärker mit variabler Verstärkung
US7002395B2 (en) *	2003-09-16	2006-02-21	Yuantonix, Inc.	Demodulating logarithmic amplifier
US7417485B1 (en)	2003-09-23	2008-08-26	Cypress Semiconductor Corporation	Differential energy difference integrator
JP5420847B2 (ja) *	2008-02-19	2014-02-19	ピーエスフォールクスコエスエイアールエル	信号伝送回路及びこれを用いた信号伝送システム
TWI716817B (zh) *	2019-02-19	2021-01-21	立積電子股份有限公司	其電晶體都是雙極性接面型電晶體的功率偵測器

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3403347A (en) *	1965-02-15	1968-09-24	Navy Usa	High accuracy instantaneous intermediate frequency logarithmic amplifier
US3719831A (en) *	1969-02-18	1973-03-06	Us Air Force	Logarithmic if amplifier
US3605027A (en) *	1969-02-19	1971-09-14	Us Navy	Amplifier
US3668535A (en) *	1970-01-15	1972-06-06	Varian Associates	Logarithmic rf amplifier employing successive detection
US3757136A (en) *	1971-12-20	1973-09-04	Us Army	Direct coupled logarithmic video amplifier
DE2606270C3 (de) *	1976-02-17	1978-11-23	Siemens Ag, 1000 Berlin Und 8000 Muenchen	Mehrstufige Begrenzerverstärkerschaltung
US4209714A (en) *	1977-06-13	1980-06-24	Trio Kabushiki Kaisha	Logarithmic amplifier
DE3279518D1 (en) *	1981-03-06	1989-04-13	Atomic Energy Authority Uk	Logarithmic amplifiers
JPS5979496A (ja) *	1982-10-29	1984-05-08	Nec Corp	サンプルド・デ−タ回路
US4680553A (en) *	1985-01-18	1987-07-14	Nec Corporation	Intermediate frequency amplifier with signal strength detection circuit
US4794342A (en) *	1986-06-04	1988-12-27	Nec Corporation	Intermediate frequency amplification circuit capable of detecting a field strength with low electric power
JPH0656940B2 (ja) *	1986-06-11	1994-07-27	日本電気株式会社	対数増幅回路
JPH0622305B2 (ja) *	1986-06-12	1994-03-23	日本電気株式会社	対数ｉｆ増幅回路
JPS6324377A (ja) *	1986-07-16	1988-02-01	Nec Corp	二乗回路
NL8800510A (nl) *	1988-02-29	1989-09-18	Philips Nv	Schakeling voor het lineair versterken en demoduleren van een am-gemoduleerd signaal en geintegreerd halfgeleiderelement daarvoor.
US5126846A (en) *	1988-08-08	1992-06-30	Kabushiki Kaisha Toshiba	Non-linear amplifier and non-linear emphasis/deemphasis circuit using the same
US4990803A (en) *	1989-03-27	1991-02-05	Analog Devices, Inc.	Logarithmic amplifier
JP2643516B2 (ja) *	1990-02-01	1997-08-20	日本電気株式会社	対数増幅回路
JPH0423506A (ja) *	1990-05-17	1992-01-27	Nec Corp	Ａｇｃ検波回路
JP2764761B2 (ja) *	1990-07-19	1998-06-11	松下電器産業株式会社	映像信号平均輝度レベル検出装置
US5070303A (en) *	1990-08-21	1991-12-03	Telefonaktiebolaget L M Ericsson	Logarithmic amplifier/detector delay compensation
JP2995886B2 (ja) *	1991-02-28	1999-12-27	日本電気株式会社	対数増幅回路

1992
- 1992-05-22 CA CA002069243A patent/CA2069243C/en not_active Expired - Fee Related
- 1992-05-22 EP EP92108690A patent/EP0514929B1/de not_active Expired - Lifetime
- 1992-05-22 ES ES92108690T patent/ES2136066T3/es not_active Expired - Lifetime
- 1992-05-22 DE DE69230014T patent/DE69230014T2/de not_active Expired - Fee Related
- 1992-05-22 SG SG1996006520A patent/SG48040A1/en unknown
- 1992-05-22 US US07/886,950 patent/US5467046A/en not_active Expired - Fee Related
- 1992-05-22 EP EP96119203A patent/EP0766382A2/de not_active Withdrawn
- 1992-05-23 KR KR1019920008783A patent/KR960015009B1/ko not_active IP Right Cessation
- 1992-05-25 AU AU17144/92A patent/AU658182B2/en not_active Ceased
1995
- 1995-01-10 AU AU10112/95A patent/AU677470B2/en not_active Ceased
1998
- 1998-08-06 HK HK98109750A patent/HK1009059A1/xx not_active IP Right Cessation

Also Published As

Publication number	Publication date
AU1714492A (en)	1992-11-26
DE69230014T2 (de)	2000-03-23
EP0766382A3 (de)	1997-04-16
EP0766382A2 (de)	1997-04-02
US5467046A (en)	1995-11-14
CA2069243A1 (en)	1992-11-24
KR960015009B1 (ko)	1996-10-23
KR920022646A (ko)	1992-12-19
SG48040A1 (en)	1998-04-17
AU658182B2 (en)	1995-04-06
ES2136066T3 (es)	1999-11-16
EP0514929B1 (de)	1999-09-22
EP0514929A3 (de)	1994-03-30
EP0514929A2 (de)	1992-11-25
AU677470B2 (en)	1997-04-24
HK1009059A1 (en)	1999-05-21
CA2069243C (en)	1997-08-19
AU1011295A (en)	1995-03-09

Legal Events

Date	Code	Title	Description
2000-10-12	8364	No opposition during term of opposition
2002-07-18	8339	Ceased/non-payment of the annual fee

Publication	Publication Date	Title
DK158688D0 (da)	1988-03-23	Hoejfrekvens signal-forstaerker
NO904934L (no)	1996-01-12	Forsterker for bredbÕnds-hyperfrekvenssignaler
DE3870475D1 (de)	1992-06-04	Tonfrequenzverstaerker.
DE69127783D1 (de)	1997-11-06	Quantisierungsfehlerverminderer für Audiosignal
DE69209416D1 (de)	1996-05-02	Verstärkerschaltung für Druckwandler
DE69222058D1 (de)	1997-10-09	Ultra-schall sonde-montierung
DE69230014D1 (de)	1999-10-28	Logarithmischer Verstärker für Zwischenfrequenzsignale
DE69414741D1 (de)	1999-01-07	Tonfrequenzverstärkeranordnung
DE69121356T2 (de)	1996-12-12	Logarithmischer Verstärker
DE69313465T2 (de)	1998-01-02	Verstärker mit stabiler verzerrung für tonsignale
DE69130124D1 (de)	1998-10-15	Logarithmischer Verstärker
DE68926230D1 (de)	1996-05-15	Rauschmessung für Videosignale
DE3876113T2 (de)	1993-04-15	Tonfrequenzausgangsverstaerker.
DE69120555T2 (de)	1997-01-23	Breitband-Signalverstärker
DE69215920T2 (de)	1997-07-10	RF Verstärker System
DE59307040D1 (de)	1997-09-11	Tonsignal-Verstärker
DE69119976T2 (de)	1996-12-19	Signal-Abschwächer
DE59509527D1 (de)	2001-09-27	Verstärkeranordnung für Hochfrequenzsignale
DE59108038D1 (de)	1996-08-29	Empfangsgerät für Hochfrequenzsignale
DE8916266U1 (de)	1996-06-05	Leistungsverstärker für Funkfrequenzsignale
DE69317135T2 (de)	1998-09-17	Ton-Zwischenfrequenz-Verstärker für einen Empfänger
DE68907671D1 (de)	1993-08-26	Tonfrequenzverstaerker.
KR920001170U (ko)	1992-01-28	증폭기의 입력 임피던스 측정회로
KR890001813U (ko)	1989-03-20	저음 전용 앰프 뮤팅회로
BR6300475U (pt)	1984-11-20	Amplificador de baixo ruido com rejeicao de frequencia imagem