NO802105L - Innretning for registrering av lydsignaler paa et magnetisk medium. - Google Patents
Innretning for registrering av lydsignaler paa et magnetisk medium.Info
- Publication number
- NO802105L NO802105L NO802105A NO802105A NO802105L NO 802105 L NO802105 L NO 802105L NO 802105 A NO802105 A NO 802105A NO 802105 A NO802105 A NO 802105A NO 802105 L NO802105 L NO 802105L
- Authority
- NO
- Norway
- Prior art keywords
- recording
- bias
- frequency
- amplifier
- equalization
- Prior art date
Links
- 230000004044 response Effects 0.000 claims description 23
- 230000035945 sensitivity Effects 0.000 claims description 18
- 230000001419 dependent effect Effects 0.000 claims description 8
- 230000005236 sound signal Effects 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 2
- 230000000295 complement effect Effects 0.000 claims 1
- 230000002829 reductive effect Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 13
- 238000009499 grossing Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 13
- 230000009467 reduction Effects 0.000 description 10
- 238000001228 spectrum Methods 0.000 description 10
- 230000008859 change Effects 0.000 description 9
- 230000000284 resting effect Effects 0.000 description 9
- 238000013461 design Methods 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 6
- 230000005669 field effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000012886 linear function Methods 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 101100381996 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) BRO1 gene Proteins 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- CJOBVZJTOIVNNF-UHFFFAOYSA-N cadmium sulfide Chemical compound [Cd]=S CJOBVZJTOIVNNF-UHFFFAOYSA-N 0.000 description 1
- 229910052980 cadmium sulfide Inorganic materials 0.000 description 1
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical compound [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010230 functional analysis Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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)
- Electronic Switches (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
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 |
|---|---|
| NO802105L true NO802105L (no) | 1981-01-14 |
Family
ID=22010764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO802105A NO802105L (no) | 1979-07-13 | 1980-07-11 | Innretning for registrering av lydsignaler paa et magnetisk medium. |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US4263624A (de) |
| JP (1) | JPS5613504A (de) |
| AT (1) | AT372537B (de) |
| BE (1) | BE884293R (de) |
| CA (1) | CA1131356A (de) |
| DE (1) | DE3025627A1 (de) |
| DK (1) | DK283980A (de) |
| FR (1) | FR2464530A1 (de) |
| GB (1) | GB2054245B (de) |
| IT (1) | IT1132526B (de) |
| NL (1) | NL8003480A (de) |
| NO (1) | NO802105L (de) |
| SE (1) | SE8005083L (de) |
Families Citing this family (15)
| 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 (de) * | 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 |
| JPH01237913A (ja) * | 1987-10-15 | 1989-09-22 | Personics Corp | 磁気記録装置のバイアス制御 |
| 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 |
| WO1997034294A1 (fr) * | 1996-03-15 | 1997-09-18 | Alexandr Vasilievich Ponomarev | Circuit electrique de magnetophone, dispositif d'ecriture magnetique de signaux analogiques, dispositif de transformation de valeurs non electriques en signaux electriques, et appareil de restitution des sons dans le circuit electrique du magnetophone |
| 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)
| 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 (de) * | 1970-12-19 | 1978-06-23 | ||
| JPS5648883B1 (de) * | 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 |
-
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 CA CA355,967A patent/CA1131356A/en not_active Expired
- 1980-07-11 IT IT23393/80A patent/IT1132526B/it active
- 1980-07-11 BE BE0/201393A patent/BE884293R/fr active
- 1980-07-11 NO NO802105A patent/NO802105L/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5613504A (en) | 1981-02-09 |
| FR2464530A1 (fr) | 1981-03-06 |
| US4263624A (en) | 1981-04-21 |
| ATA348180A (de) | 1983-02-15 |
| DE3025627A1 (de) | 1981-02-05 |
| CA1131356A (en) | 1982-09-07 |
| SE8005083L (sv) | 1981-01-14 |
| GB2054245B (en) | 1983-03-16 |
| IT1132526B (it) | 1986-07-02 |
| AT372537B (de) | 1983-10-25 |
| NL8003480A (nl) | 1981-01-15 |
| DK283980A (da) | 1981-01-14 |
| BE884293R (fr) | 1980-11-03 |
| IT8023393A0 (it) | 1980-07-11 |
| GB2054245A (en) | 1981-02-11 |
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