JPS4946918A - - Google Patents
Info
- Publication number
- JPS4946918A JPS4946918A JP48080547A JP8054773A JPS4946918A JP S4946918 A JPS4946918 A JP S4946918A JP 48080547 A JP48080547 A JP 48080547A JP 8054773 A JP8054773 A JP 8054773A JP S4946918 A JPS4946918 A JP S4946918A
- 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
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
- G11B5/022—H-Bridge head driver circuit, the "H" configuration allowing to inverse the current direction in the head
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
- H03K17/64—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors having inductive loads
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
- H03K17/66—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will
- H03K17/661—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to both load terminals
Landscapes
- Digital Magnetic Recording (AREA)
- Electronic Switches (AREA)
- Control Of Stepping Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US28252672A | 1972-08-21 | 1972-08-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4946918A true JPS4946918A (ja) | 1974-05-07 |
| JPS5220252B2 JPS5220252B2 (ja) | 1977-06-02 |
Family
ID=23081910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48080547A Expired JPS5220252B2 (ja) | 1972-08-21 | 1973-07-19 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3763383A (ja) |
| JP (1) | JPS5220252B2 (ja) |
| CA (1) | CA1003100A (ja) |
| DE (1) | DE2337928C2 (ja) |
| FR (1) | FR2197279B1 (ja) |
| GB (1) | GB1412804A (ja) |
| IT (1) | IT990640B (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50119616A (ja) * | 1974-03-04 | 1975-09-19 | ||
| JPS51148410A (en) * | 1975-06-16 | 1976-12-20 | Hitachi Ltd | Selector |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4015290A (en) * | 1975-07-31 | 1977-03-29 | Sangamo Electric Company | Low power recording instrument with two or more tracks |
| JPS55155911U (ja) * | 1978-04-19 | 1980-11-10 | ||
| JPS54153615A (en) * | 1978-05-24 | 1979-12-04 | Hitachi Ltd | Current driving circuit |
| JPS5858731B2 (ja) * | 1978-12-18 | 1983-12-27 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | 磁気トランスジユ−サ用駆動増幅器 |
| DE3045544A1 (de) * | 1980-12-03 | 1982-07-01 | Robert Bosch Gmbh, 7000 Stuttgart | Vorrichtung zur aufzeichnung digitaler signale auf einem magnetband |
| JPS58125690U (ja) * | 1982-11-02 | 1983-08-26 | 株式会社相沢鉄工所 | プレスの表示装置 |
| JPS61158010A (ja) * | 1984-12-28 | 1986-07-17 | Tdk Corp | 磁気ヘツド回路 |
| JP2519798Y2 (ja) * | 1991-12-24 | 1996-12-11 | ティアック株式会社 | デイジタル記録回路 |
| US5363249A (en) * | 1992-02-20 | 1994-11-08 | Silicon Systems, Inc. | Self switching head damping |
| JPH07320208A (ja) * | 1994-05-20 | 1995-12-08 | Rohm Co Ltd | 磁気記録装置 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2922144A (en) * | 1954-03-01 | 1960-01-19 | Smith Corona Marchant Inc | Read-record circuits |
| US3064140A (en) * | 1957-07-29 | 1962-11-13 | Honeywell Regulator Co | Current regulating circuit for switching memory elements and the like |
| US3125759A (en) * | 1958-03-28 | 1964-03-17 | Magnetic recording device | |
| US3163804A (en) * | 1961-03-01 | 1964-12-29 | Jersey Prod Res Co | Circuit for driving a center tapped head winding |
| US3380038A (en) * | 1964-02-14 | 1968-04-23 | Sylvania Electric Prod | Electronic switching circuits |
| US3344321A (en) * | 1965-07-09 | 1967-09-26 | Ibm | Magnetostrictive delay line driver |
| US3377518A (en) * | 1966-06-01 | 1968-04-09 | Ibm | Magnetostrictive delay line driver |
| GB1225801A (ja) * | 1968-05-15 | 1971-03-24 | ||
| US3555525A (en) * | 1968-05-15 | 1971-01-12 | Edo Corp | Bipolar current generator |
| US3602739A (en) * | 1969-04-16 | 1971-08-31 | Westinghouse Electric Corp | Digital magnetic recording circuit bidirectional load switching having higher load voltage at time of reversal |
| US3624417A (en) * | 1969-04-21 | 1971-11-30 | Ampex | High-speed pulse driver for modulators, magnetic memories, and the like, having a complementary push-pull output stage |
| US3618119A (en) * | 1970-03-13 | 1971-11-02 | Storage Technology Corp | Compensation in a magentic write circuit |
| JPS514019Y1 (ja) * | 1970-11-21 | 1976-02-04 |
-
1972
- 1972-08-21 US US00282526A patent/US3763383A/en not_active Expired - Lifetime
-
1973
- 1973-06-15 IT IT25404/73A patent/IT990640B/it active
- 1973-07-09 GB GB3262773A patent/GB1412804A/en not_active Expired
- 1973-07-12 FR FR7326415A patent/FR2197279B1/fr not_active Expired
- 1973-07-13 CA CA176,412A patent/CA1003100A/en not_active Expired
- 1973-07-19 JP JP48080547A patent/JPS5220252B2/ja not_active Expired
- 1973-07-26 DE DE2337928A patent/DE2337928C2/de not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50119616A (ja) * | 1974-03-04 | 1975-09-19 | ||
| JPS592085B2 (ja) * | 1974-03-04 | 1984-01-17 | 株式会社日立製作所 | 書込み増幅器 |
| JPS51148410A (en) * | 1975-06-16 | 1976-12-20 | Hitachi Ltd | Selector |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2337928C2 (de) | 1983-05-11 |
| CA1003100A (en) | 1977-01-04 |
| DE2337928A1 (de) | 1974-03-07 |
| FR2197279B1 (ja) | 1976-05-07 |
| FR2197279A1 (ja) | 1974-03-22 |
| US3763383A (en) | 1973-10-02 |
| GB1412804A (en) | 1975-11-05 |
| IT990640B (it) | 1975-07-10 |
| JPS5220252B2 (ja) | 1977-06-02 |