BE884293R - Perfectionnements relatifs a l'enregistrement analogique sur des supports magnetiques - Google Patents

Perfectionnements relatifs a l'enregistrement analogique sur des supports magnetiques

Info

Publication number: BE884293R
Authority: BE; Belgium
Prior art keywords: magnetic media; improvements relating; analogue recording; analogue; recording
Prior art date: 1979-07-13

Application number

BE0/201393A

Other languages

English (en)

Inventor

K Gundry

Original Assignee

Dolby Lab Licensing 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.)

1979-07-13

Filing date

1980-07-11

Publication date

1980-11-03

1980-07-11 Application filed by Dolby Lab Licensing Corp filed Critical Dolby Lab Licensing Corp

1980-11-03 Application granted granted Critical

1980-11-03 Publication of BE884293R publication Critical patent/BE884293R/fr

Links

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
- H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
- 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
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/16—Automatic control
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/16—Automatic control
- H03G5/165—Equalizers; Volume or gain control in limited frequency bands
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
- H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
- H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Recording Or Reproducing By Magnetic Means (AREA)
Signal Processing For Digital Recording And Reproducing (AREA)
Electronic Switches (AREA)

BE0/201393A 1979-07-13 1980-07-11 Perfectionnements relatifs a l'enregistrement analogique sur des supports magnetiques BE884293R (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US06/057,473 US4263624A (en)	1978-12-12	1979-07-13	Analog recording on magnetic media

Publications (1)

Publication Number	Publication Date
BE884293R true BE884293R (fr)	1980-11-03

Family

ID=22010764

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE0/201393A BE884293R (fr)	1979-07-13	1980-07-11	Perfectionnements relatifs a l'enregistrement analogique sur des supports magnetiques

Country Status (13)

Country	Link
US (1)	US4263624A (fr)
JP (1)	JPS5613504A (fr)
AT (1)	AT372537B (fr)
BE (1)	BE884293R (fr)
CA (1)	CA1131356A (fr)
DE (1)	DE3025627A1 (fr)
DK (1)	DK283980A (fr)
FR (1)	FR2464530A1 (fr)
GB (1)	GB2054245B (fr)
IT (1)	IT1132526B (fr)
NL (1)	NL8003480A (fr)
NO (1)	NO802105L (fr)
SE (1)	SE8005083L (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS55158715A (en) *	1979-05-29	1980-12-10	Sony Corp	Gain control circuit
US4353100A (en) *	1979-08-31	1982-10-05	Teac Corporation	Magnetic recording system with signal-controlled bias and equalization
JPS5791320U (fr) *	1980-11-26	1982-06-05
US4454548A (en) *	1981-08-20	1984-06-12	Bang And Olufsen A/S	Bias control method and apparatus for magnetic recording
JPS5836031A (ja) *	1981-08-28	1983-03-02	Hitachi Ltd	雑音低減装置
JPS58114308A (ja) *	1981-12-26	1983-07-07	Toshiba Corp	テ−プレコ−ダ
US4615037A (en) *	1985-01-29	1986-09-30	Ampex Corporation	Phase scatter detection and reduction circuit and method
EP0312404A3 (fr) *	1987-10-15	1990-10-17	Personics Corporation	Appareil et méthode pour améliorer la qualité de l'enregistrement audio sur un disque magnétique
US4972275A (en) *	1989-02-22	1990-11-20	Ford Motor Company	Wideband radio-frequency broadcast recorder and radio testing system
US6122126A (en) *	1993-08-03	2000-09-19	Sony Corporation	Digital magnetic reproducing apparatus and digital magnetic recording/reproducing apparatus employing detection of second harmonic distortion and bias current control
AU2312097A (en) *	1996-03-15	1997-10-01	Alexandr Vasilievich Ponomarev	Electric circuit for a magnetic tape recorder, device for magnetic recording of analog signals, device for converting non-electrical variables into electrical signals and sound-reproduction system for the electric circuit of the tape recorder
RU2107952C1 (ru) *	1996-03-15	1998-03-27	Александр Васильевич Пономарев	Устройство магнитной записи аналоговых сигналов
KR100219613B1 (ko) *	1996-11-09	1999-10-01	윤종용	오디오 기록 바이어스 제어장치
TWI557731B (zh) *	2015-04-29	2016-11-11		Analog record
TWI587296B (zh)	2015-05-01	2017-06-11		Comparable albums with different materials

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2628287A (en) *	1951-02-16	1953-02-10	Nathan M Haynes	Magnetic recording apparatus
US2791640A (en) *	1953-11-27	1957-05-07	Rca Corp	Magnetic sound recording
US3300590A (en) *	1963-01-03	1967-01-24	Cronin Daniel	Magnetic tape signal transfer compensation system
US3757254A (en) *	1970-06-05	1973-09-04	Victor Co Ltd	N system noise reduction system and apparatus using a compression and expansio
JPS5319923B1 (fr) *	1970-12-19	1978-06-23
JPS5648883B1 (fr) *	1971-07-24	1981-11-18
BE793740A (fr) *	1972-01-08	1973-05-02	Akai Electric	Systeme d'enregistrement magnetique
US4011585A (en) *	1974-07-12	1977-03-08	Pioneer Electronic Corporation	Magnetic recording reproducing system
GB2013958B (en) *	1977-12-27	1982-05-06	Dolby Lab Licensing Corp	Analogue recording on magnetic media

1979
- 1979-07-13 US US06/057,473 patent/US4263624A/en not_active Expired - Lifetime
1980
- 1980-06-16 NL NL8003480A patent/NL8003480A/nl not_active Application Discontinuation
- 1980-06-30 JP JP8797980A patent/JPS5613504A/ja active Pending
- 1980-07-01 DK DK283980A patent/DK283980A/da not_active Application Discontinuation
- 1980-07-03 AT AT0348180A patent/AT372537B/de not_active IP Right Cessation
- 1980-07-07 GB GB8022224A patent/GB2054245B/en not_active Expired
- 1980-07-07 DE DE19803025627 patent/DE3025627A1/de not_active Ceased
- 1980-07-10 FR FR8015375A patent/FR2464530A1/fr active Pending
- 1980-07-10 SE SE8005083A patent/SE8005083L/ not_active Application Discontinuation
- 1980-07-11 BE BE0/201393A patent/BE884293R/fr active
- 1980-07-11 IT IT23393/80A patent/IT1132526B/it active
- 1980-07-11 NO NO802105A patent/NO802105L/no unknown
- 1980-07-11 CA CA355,967A patent/CA1131356A/fr not_active Expired

Also Published As

Publication number	Publication date
FR2464530A1 (fr)	1981-03-06
IT1132526B (it)	1986-07-02
NO802105L (no)	1981-01-14
IT8023393A0 (it)	1980-07-11
NL8003480A (nl)	1981-01-15
GB2054245B (en)	1983-03-16
US4263624A (en)	1981-04-21
ATA348180A (de)	1983-02-15
AT372537B (de)	1983-10-25
CA1131356A (fr)	1982-09-07
SE8005083L (sv)	1981-01-14
DE3025627A1 (de)	1981-02-05
DK283980A (da)	1981-01-14
GB2054245A (en)	1981-02-11
JPS5613504A (en)	1981-02-09

Publication	Publication Date	Title
FR2452758B1 (fr)	1985-06-21	Support d'enregistrement
FR2463477B1 (fr)	1988-04-08	Element d'enregistrement magnetique
GB2113450B (en)	1983-12-21	Magnetic transducing head mount
BE884293R (fr)	1980-11-03	Perfectionnements relatifs a l'enregistrement analogique sur des supports magnetiques
BE878000A (fr)	1980-01-31	Support d'enregistrement magnetique securitaire
FR2426956B1 (fr)	1988-06-24	Element d'enregistrement d'information
FR2414782B1 (fr)	1987-05-22	Article d'enregistrement magnetique
FR2503909B1 (fr)	1986-02-28	Moyen d'enregistrement magnetique
FR2463476B1 (fr)	1988-05-20	Element d'enregistrement magnetique
FR2517099B1 (fr)	1986-04-04	Support d'enregistrement magnetique
DE2964566D1 (en)	1983-02-24	Magnetic read head
FR2538594B1 (fr)	1987-01-23	Perfectionnements aux supports d'enregistrement magnetiques
GB2021837B (en)	1982-06-30	Read/write magnetic head with compound-foil
BE859785A (fr)	1978-04-17	Procede d'enregistrement magnetique inalterable
GB2041382B (en)	1983-01-12	Magnetic recording medium
GB2019255B (en)	1982-07-07	Magnetic recording medium
GB2039281B (en)	1982-11-17	Magnetic recording medium
GB2038843B (en)	1983-05-05	Magnetic recording medium
GB2037782B (en)	1983-05-11	Magnetic recording medium
GB2017117B (en)	1982-07-07	Magnetic recording meduim
GB2018002B (en)	1982-05-06	Magnetic recording medium direction sensing
GB2036757B (en)	1982-12-22	Magnetic recording medium
NL7902131A (nl)	1979-09-18	Magnetisch registratiemedium.
BE873114A (fr)	1979-04-17	Perfectionnements relatifs a l'enregistrement analogique sur des supports magnetiques
JPS54143117A (en)	1979-11-08	Magnetic recording medium