JPS50122916A - - Google Patents
Info
- Publication number
- JPS50122916A JPS50122916A JP49028813A JP2881374A JPS50122916A JP S50122916 A JPS50122916 A JP S50122916A JP 49028813 A JP49028813 A JP 49028813A JP 2881374 A JP2881374 A JP 2881374A JP S50122916 A JPS50122916 A JP S50122916A
- Authority
- JP
- Japan
- 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.)
- Granted
Links
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
- G01R33/14—Measuring or plotting hysteresis curves
-
- 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
- G11B5/03—Biasing
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49028813A JPS5751161B2 (US06235095-20010522-C00021.png) | 1974-03-12 | 1974-03-12 | |
| US05/556,120 US4038692A (en) | 1974-03-12 | 1975-03-06 | Tape sensing device for magnetic tape recording and/or reproducing apparatus |
| GB9889/75A GB1497823A (en) | 1974-03-12 | 1975-03-10 | Magnetic tape recording and reproduction |
| FR7507605A FR2264352B1 (US06235095-20010522-C00021.png) | 1974-03-12 | 1975-03-11 | |
| DE2510590A DE2510590C2 (de) | 1974-03-12 | 1975-03-11 | Einrichtung zum Ermitteln der Art der Magnetbeschichtung eines Magnetbandes |
| NL7502901A NL7502901A (nl) | 1974-03-12 | 1975-03-11 | Magnetisch bandapparaat met een inrichting voor bepaling van het type van de magnetische laag op een te gebruiken magneetband. |
| CA221,845A CA1055607A (en) | 1974-03-12 | 1975-03-11 | Tape sensing device for magnetic tape recording and/or reproducing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49028813A JPS5751161B2 (US06235095-20010522-C00021.png) | 1974-03-12 | 1974-03-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS50122916A true JPS50122916A (US06235095-20010522-C00021.png) | 1975-09-26 |
| JPS5751161B2 JPS5751161B2 (US06235095-20010522-C00021.png) | 1982-10-30 |
Family
ID=12258837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP49028813A Expired JPS5751161B2 (US06235095-20010522-C00021.png) | 1974-03-12 | 1974-03-12 |
Country Status (7)
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52107816A (en) * | 1976-03-05 | 1977-09-09 | Nakamichi Kenkyusho | Circuit for reproducing tape recorder |
| DE2726370C2 (de) * | 1977-06-10 | 1981-09-24 | Basf Ag, 6700 Ludwigshafen | Meßverfahren und Meßeinrichtung zur Bestimmung der Homogenität von Magnetdispersionen |
| JPS5425811A (en) * | 1977-07-29 | 1979-02-27 | Olympus Optical Co Ltd | Tape recorder |
| JPS54139515A (en) * | 1978-04-20 | 1979-10-30 | Matsushita Electric Ind Co Ltd | Magnetic recorder-reproducer |
| JPS54118210A (en) * | 1978-03-06 | 1979-09-13 | Victor Co Of Japan Ltd | Bias current setting device |
| JPS601686B2 (ja) * | 1978-03-29 | 1985-01-17 | 日本ビクター株式会社 | 適正バイアス量を自動設定する磁気記録再生装置 |
| JPS5923220Y2 (ja) * | 1978-04-28 | 1984-07-11 | オンキヨー株式会社 | テ−プレコ−ダ−の録音バイアス調整回路 |
| US4187521A (en) * | 1978-05-04 | 1980-02-05 | Basf Aktiengesellschaft | DC erase head |
| US4279005A (en) * | 1978-05-28 | 1981-07-14 | Victor Company Of Japan, Limited | Method and system for automatically providing flat frequency response to audio signals recorded on magnetic tapes |
| JPS6025801B2 (ja) * | 1978-05-30 | 1985-06-20 | オンキヨー株式会社 | 録音バイアス電流自動調整装置 |
| US4312020A (en) * | 1978-07-18 | 1982-01-19 | Pioneer Electronic Corporation | Frequency response adjusting device for magnetic sound recorder |
| DE2938937C2 (de) * | 1978-09-27 | 1985-12-12 | Hitachi, Ltd., Tokio/Tokyo | Einstellvorrichtung und Verfahren für ein Magnetband-Aufzeichungs- und Wiedergabegerät |
| JPS606007B2 (ja) * | 1978-11-14 | 1985-02-15 | パイオニア株式会社 | 磁気録音再生機の最適録音特性検出方法 |
| JPS5593821U (US06235095-20010522-C00021.png) * | 1978-12-19 | 1980-06-28 | ||
| US4280153A (en) * | 1979-11-01 | 1981-07-21 | Ampex Corporation | Digitally controlled automatic bias circuit for magnetic recording |
| JPS5791320U (US06235095-20010522-C00021.png) * | 1980-11-26 | 1982-06-05 | ||
| US4398226A (en) * | 1981-03-06 | 1983-08-09 | Eastman Kodak Company | Quadruplex recordings with ferrite heads resembling quadruplex recordings with metal heads |
| DE3342525A1 (de) * | 1982-11-27 | 1984-05-30 | Canon K.K., Tokio/Tokyo | Geraet zur informations-aufzeichnung und/oder -wiedergabe |
| US5410527A (en) * | 1985-05-14 | 1995-04-25 | Canon Kabushiki Kaisha | Information recording/reproducing apparatus including setting optimum recording condition or reproducing condition |
| JPS6228078U (US06235095-20010522-C00021.png) * | 1985-08-06 | 1987-02-20 | ||
| JPS6228077U (US06235095-20010522-C00021.png) * | 1985-08-06 | 1987-02-20 | ||
| US4849832A (en) * | 1986-04-03 | 1989-07-18 | Canon Kabushiki Kaisha | Reproducing apparatus with erasing device and erasing function based on frequency multiplexed and/or DPSK coded signal |
| JPH077567B2 (ja) * | 1988-11-15 | 1995-01-30 | ティアツク株式会社 | フロッピーディスクの識別方法 |
| US4972275A (en) * | 1989-02-22 | 1990-11-20 | Ford Motor Company | Wideband radio-frequency broadcast recorder and radio testing system |
| JP2695949B2 (ja) * | 1989-12-13 | 1998-01-14 | 株式会社日立製作所 | 磁気記録方法および記録再生装置 |
| US5392164A (en) * | 1990-05-25 | 1995-02-21 | Canon Kabushiki Kaisha | Dubbing system |
| US5257109A (en) * | 1990-07-02 | 1993-10-26 | Akai Electric Co., Ltd. | Magnetic recording and reproducing apparatus |
| US5959794A (en) * | 1993-04-09 | 1999-09-28 | Washington University | Method for precompensating signals for magnetic media noise |
| US5587654A (en) * | 1993-04-09 | 1996-12-24 | Washington University | Method and apparatus for noise reduction in magnetic media recordings |
| US5629620A (en) * | 1995-03-02 | 1997-05-13 | Eastman Kodak Company | Apparatus and method for measurement of magnetic remanence-thickness product of thin magnetic layers |
| CN112698124B (zh) * | 2020-12-03 | 2023-07-14 | 成都宏明电子股份有限公司 | 极性介质干式高压电容器是否符合预期寿命的判断方法 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4927415U (US06235095-20010522-C00021.png) * | 1972-06-09 | 1974-03-08 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1130899B (de) * | 1958-12-12 | 1962-06-07 | Siemens Ag | Verfahren und Anordnung zum Aufzeichnen und Abtasten von Magnetogrammen |
| GB936015A (en) * | 1961-07-25 | 1963-09-04 | Central Electr Generat Board | Improvements in or relating to apparatus for testing of ferro-magnetic material |
| US3601558A (en) * | 1967-11-20 | 1971-08-24 | Matsushita Electric Ind Co Ltd | Cartridge-type magnetic tape recording and reproducing apparatus with means to indicate the coercivity of the tape |
| US3588380A (en) * | 1969-03-21 | 1971-06-28 | Ibm | Switching parameters for recording/playback or magnetic media having different coercivity and/or retentivity characteristics |
| US3812529A (en) * | 1971-08-31 | 1974-05-21 | Teac Corp | System for discriminating classification of a magnetic recording medium |
| JPS5332567Y2 (US06235095-20010522-C00021.png) * | 1973-06-09 | 1978-08-12 |
-
1974
- 1974-03-12 JP JP49028813A patent/JPS5751161B2/ja not_active Expired
-
1975
- 1975-03-06 US US05/556,120 patent/US4038692A/en not_active Expired - Lifetime
- 1975-03-10 GB GB9889/75A patent/GB1497823A/en not_active Expired
- 1975-03-11 DE DE2510590A patent/DE2510590C2/de not_active Expired
- 1975-03-11 FR FR7507605A patent/FR2264352B1/fr not_active Expired
- 1975-03-11 CA CA221,845A patent/CA1055607A/en not_active Expired
- 1975-03-11 NL NL7502901A patent/NL7502901A/xx not_active Application Discontinuation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4927415U (US06235095-20010522-C00021.png) * | 1972-06-09 | 1974-03-08 |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2264352B1 (US06235095-20010522-C00021.png) | 1980-08-01 |
| DE2510590C2 (de) | 1987-04-23 |
| GB1497823A (en) | 1978-01-12 |
| FR2264352A1 (US06235095-20010522-C00021.png) | 1975-10-10 |
| JPS5751161B2 (US06235095-20010522-C00021.png) | 1982-10-30 |
| DE2510590A1 (de) | 1975-09-18 |
| US4038692A (en) | 1977-07-26 |
| CA1055607A (en) | 1979-05-29 |
| NL7502901A (nl) | 1975-09-16 |
