DE69013549D1 - Kopfverstärker für magnetische Wiedergabe. - Google Patents

Kopfverstärker für magnetische Wiedergabe.

Info

Publication number: DE69013549D1
Authority: DE; Germany
Prior art keywords: head amplifier; reproduction head; magnetic reproduction; magnetic; amplifier
Prior art date: 1989-03-31
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

DE69013549T

Other languages

English (en)

Other versions

DE69013549T2 (de

Inventor

Soichi Iwamura

Eiichi Takakura

Tadashi Itsumi

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.)

Sharp Corp

Original Assignee

Sharp 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.)

1989-03-31

Filing date

1990-03-29

Publication date

1994-12-01

1990-03-29 Application filed by Sharp Corp filed Critical Sharp Corp

1994-12-01 Publication of DE69013549D1 publication Critical patent/DE69013549D1/de

1995-05-04 Application granted granted Critical

1995-05-04 Publication of DE69013549T2 publication Critical patent/DE69013549T2/de

2010-03-30 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Classifications

- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/02—Analogue recording or reproducing
- G11B20/06—Angle-modulation recording or reproducing
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/93—Regeneration of the television signal or of selected parts thereof
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
- G11B5/027—Analogue recording
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
- G11B5/027—Analogue recording
- G11B5/035—Equalising
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/93—Regeneration of the television signal or of selected parts thereof
- H04N5/931—Regeneration of the television signal or of selected parts thereof for restoring the level of the reproduced signal

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Multimedia (AREA)
Power Engineering (AREA)
Amplifiers (AREA)
Recording Or Reproducing By Magnetic Means (AREA)
Television Signal Processing For Recording (AREA)

DE69013549T 1989-03-31 1990-03-29 Kopfverstärker für magnetische Wiedergabe. Expired - Fee Related DE69013549T2 (de)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
JP8170389		1989-03-31
JP18001089		1989-07-11
JP1341028A JPH03130967A (ja)	1989-03-31	1989-12-27	磁気再生ヘッドアンプ

Publications (2)

Publication Number	Publication Date
DE69013549D1 true DE69013549D1 (de)	1994-12-01
DE69013549T2 DE69013549T2 (de)	1995-05-04

Family

ID=27303675

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69013549T Expired - Fee Related DE69013549T2 (de)	1989-03-31	1990-03-29	Kopfverstärker für magnetische Wiedergabe.

Country Status (6)

Country	Link
US (1)	US5168397A (de)
EP (1)	EP0390554B1 (de)
JP (1)	JPH03130967A (de)
KR (1)	KR930007328B1 (de)
CA (1)	CA2012969C (de)
DE (1)	DE69013549T2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2841852B2 (ja) *	1990-11-27	1998-12-24	ソニー株式会社	記録増幅回路
US5309298A (en) *	1992-11-24	1994-05-03	International Business Machines Corporation	Suppression of magnetic instability in inductive recording heads
US5479098A (en) *	1993-03-15	1995-12-26	Trace Mountain Products, Inc.	Loop-back circuit for testing a magnetic recording system with simultaneous read and write functions
JPH06342504A (ja) *	1993-05-31	1994-12-13	Canon Inc	再生装置
JP3057655B2 (ja) *	1994-03-08	2000-07-04	ローム株式会社	磁気記録再生装置
EP1001634A3 (de) *	1998-11-12	2002-09-25	Sony Corporation	Videosignalbearbeitung, Aufnahmeformatunterscheidung und Signalwiedergabe
US6674595B1 (en) *	2000-11-15	2004-01-06	Texas Instruments Incorporated	Controlled impedance amplifiers
TWI346468B (en) *	2007-07-06	2011-08-01	Realtek Semiconductor Corp	Line driver with automatically adjusting output impedance

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1383204A (en) *	1971-04-16	1975-02-05	Gen Electric Co Ltd	Active filter networks
US3747007A (en) *	1972-07-07	1973-07-17	Us Army	Variable compensation for feedback control systems
US4437069A (en) *	1981-06-12	1984-03-13	The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration	Low noise tuned amplifier
JPS5832207A (ja) *	1981-08-21	1983-02-25	Hitachi Ltd	ビデオテ−プレコ−ダ用プリアンプ回路
JPS5860407A (ja) *	1981-10-05	1983-04-09	Hitachi Ltd	磁気記録再生装置用再生増幅器
AT377873B (de) *	1981-10-22	1985-05-10	Akg Akustische Kino Geraete	Impedanzwandlerschaltung fuer kapazitive spannungsquellen
US4547819A (en) *	1983-05-04	1985-10-15	Amber Electro Design, Inc.	Magnetic pickup preamplifier
JPS63102003A (ja) *	1986-10-20	1988-05-06	Hitachi Ltd	磁気記録再生装置
DE3750208D1 (de) *	1986-10-20	1994-08-18	Hitachi Ltd	Vorverstärkerschaltung.
IT1203893B (it) *	1987-04-14	1989-02-23	Sgs Microelettronica Spa	Circuito di amplificazione ad elevata precisione con piccolo ingombro e basso consumo di potenza per circuiti integrati.

1989
- 1989-12-27 JP JP1341028A patent/JPH03130967A/ja active Pending
1990
- 1990-03-19 US US07/495,164 patent/US5168397A/en not_active Expired - Lifetime
- 1990-03-23 KR KR1019900003961A patent/KR930007328B1/ko not_active IP Right Cessation
- 1990-03-23 CA CA002012969A patent/CA2012969C/en not_active Expired - Fee Related
- 1990-03-29 EP EP90303354A patent/EP0390554B1/de not_active Expired - Lifetime
- 1990-03-29 DE DE69013549T patent/DE69013549T2/de not_active Expired - Fee Related

Also Published As

Publication number	Publication date
CA2012969A1 (en)	1990-09-30
JPH03130967A (ja)	1991-06-04
KR930007328B1 (ko)	1993-08-05
DE69013549T2 (de)	1995-05-04
EP0390554A1 (de)	1990-10-03
EP0390554B1 (de)	1994-10-26
US5168397A (en)	1992-12-01
CA2012969C (en)	1994-03-08
KR900015087A (ko)	1990-10-25

Publication	Publication Date	Title
DE3885825D1 (de)	1994-01-05	Magnetische Aufzeichnungsträger.
DE69019222D1 (de)	1995-06-14	Magnetisches Aufzeichnungs-/Wiedergabegerät.
DE3778168D1 (de)	1992-05-21	Magnetisches aufzeichnungsmedium.
DE3884297D1 (de)	1993-10-28	Magnetischer Plattenspieler.
DE3886440D1 (de)	1994-02-03	Aufzeichnungsmittel.
DE3773239D1 (de)	1991-10-31	Magnetisches aufzeichnungsmedium.
DE69103664D1 (de)	1994-10-06	Träger für longitudinale magnetische Aufzeichnung.
DE3879305D1 (de)	1993-04-22	Magnetkopf.
DE68920403D1 (de)	1995-02-16	Magnetischer Plattenspieler.
KR900016954A (ko)	1990-11-14	자기 기록 매체
DE68917903D1 (de)	1994-10-06	Magneto-optischer Aufzeichnungsträger.
DE69007261D1 (de)	1994-04-14	Langgestreckter magnetischer Aufzeichnungsträger.
DE3580635D1 (de)	1991-01-03	Magnetisches aufzeichnungsmedium.
DE59007831D1 (de)	1995-01-12	Magnetische Aufzeichnungsträger.
DE3886569D1 (de)	1994-02-10	Magnetkopf.
DE3575357D1 (de)	1990-02-15	Magnetisches aufzeichnungsmedium.
DE3879799D1 (de)	1993-05-06	Magnetkopf.
DE69022465D1 (de)	1995-10-26	Statischer Lese-Magnetkopf.
DE68910615D1 (de)	1993-12-16	Magnetkopf.
DE69013549D1 (de)	1994-12-01	Kopfverstärker für magnetische Wiedergabe.
DE69011997D1 (de)	1994-10-06	Hall-Effekt Magnetwiedergabekopf.
EP0355162A4 (de)	1990-01-29	Magnetisches speichermedium.
DE69110945D1 (de)	1995-08-10	Magnetisches Aufzeichnungsmedium.
DE69020523D1 (de)	1995-08-03	Mehrspur-Lesemagnetkopf.
DE69005471D1 (de)	1994-02-10	Magnetischer Aufzeichnungsträger.

Legal Events

Date	Code	Title	Description
1995-11-23	8364	No opposition during term of opposition
1997-03-20	8328	Change in the person/name/address of the agent	Free format text: PATENTANWAELTE MUELLER & HOFFMANN, 81667 MUENCHEN
2004-01-15	8339	Ceased/non-payment of the annual fee