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
BE884293R BE0/201393A BE201393A BE884293R BE 884293 R BE884293 R BE 884293R BE 0/201393 A BE0/201393 A BE 0/201393A BE 201393 A BE201393 A BE 201393A BE 884293 R BE884293 R BE 884293R
Authority
BE
Belgium
Prior art keywords
magnetic media
improvements relating
analogue recording
analogue
recording
Prior art date
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.)
Filing date
Publication date
Application filed by Dolby Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Application granted granted Critical
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 (14)

* 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
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
DE2855259A1 (de) * 1977-12-27 1979-07-05 Dolby Lab Licensing Corp Vorrichtung und system zur aufzeichnung von tonfrequenzsignalen auf einem magnetischen aufzeichnungstraeger

Also Published As

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

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