FR2266272B1 - - Google Patents
Info
- Publication number
- FR2266272B1 FR2266272B1 FR7509152A FR7509152A FR2266272B1 FR 2266272 B1 FR2266272 B1 FR 2266272B1 FR 7509152 A FR7509152 A FR 7509152A FR 7509152 A FR7509152 A FR 7509152A FR 2266272 B1 FR2266272 B1 FR 2266272B1
- Authority
- FR
- France
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/18—Rotary transformers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
- G11B15/14—Masking or switching periodically, e.g. of rotating heads
-
- 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
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/52—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with simultaneous movement of head and record carrier, e.g. rotation of head
- G11B5/53—Disposition or mounting of heads on rotating support
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US454257A US3911486A (en) | 1974-03-25 | 1974-03-25 | Commutating rotary transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2266272A1 FR2266272A1 (ru) | 1975-10-24 |
| FR2266272B1 true FR2266272B1 (ru) | 1978-11-03 |
Family
ID=23803934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7509152A Expired FR2266272B1 (ru) | 1974-03-25 | 1975-03-24 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3911486A (ru) |
| JP (1) | JPS50134413A (ru) |
| CA (1) | CA1032621A (ru) |
| DE (1) | DE2512388C2 (ru) |
| FR (1) | FR2266272B1 (ru) |
| GB (1) | GB1457383A (ru) |
| NL (1) | NL7503483A (ru) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH584494A5 (ru) * | 1974-10-17 | 1977-01-31 | Grundig Emv | |
| US4139871A (en) * | 1975-11-24 | 1979-02-13 | Nippon Hoso Kyokai | Eight-head magnetic video tape recording and reproducing apparatus with rotary transformer |
| US4099210A (en) * | 1976-10-04 | 1978-07-04 | Dolby Dale P | Rotating transducing head assembly |
| JPS6112572Y2 (ru) * | 1979-03-14 | 1986-04-19 | ||
| JPS62109304A (ja) * | 1985-11-08 | 1987-05-20 | Canon Electronics Inc | ロ−タリ−トランス |
| JPS6423401A (en) * | 1987-07-20 | 1989-01-26 | Victor Company Of Japan | Magnetic recording and reproducing device |
| DE3724349A1 (de) * | 1987-07-23 | 1989-02-02 | Thomson Brandt Gmbh | Drehtransformator fuer einen recorder |
| US5126906A (en) * | 1989-04-17 | 1992-06-30 | Hitachi, Ltd. | Rotary magnetic head device with rotary transformer having high coupling coefficient |
| US5434720A (en) * | 1989-05-23 | 1995-07-18 | Kabushiki Kaisha Toshiba | Magnetic recording and reproduction apparatus with plural heads |
| US5276565A (en) * | 1989-05-23 | 1994-01-04 | Kabushiki Kaisha Toshiba | Rotary type magnetic recording and reproduction apparatus |
| KR910008940Y1 (ko) * | 1989-07-15 | 1991-11-15 | 다나신 덴기 가부시끼가이샤 | 테이프 레코더의 동작모드 설정장치 |
| JPH04319501A (ja) * | 1991-04-19 | 1992-11-10 | Hitachi Ltd | 回転磁気ヘッド装置とそれに用いる回転トランス |
| US5455729A (en) * | 1993-08-30 | 1995-10-03 | Conner Peripherals, Inc. | Multi-channel rotating transformer |
| GB0900493D0 (en) * | 2009-01-14 | 2009-02-11 | Rolls Royce Plc | Rotary transformer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3361878A (en) * | 1964-03-11 | 1968-01-02 | Ampex | Signal switching system utilizing magnetic switching for rotating head recorders |
| CA923207A (en) * | 1971-01-04 | 1973-03-20 | R. Gooch Beverley | Interchannel shield for multichannel rotary transformer |
-
1974
- 1974-03-25 US US454257A patent/US3911486A/en not_active Expired - Lifetime
-
1975
- 1975-03-18 GB GB1119875A patent/GB1457383A/en not_active Expired
- 1975-03-21 DE DE2512388A patent/DE2512388C2/de not_active Expired
- 1975-03-24 FR FR7509152A patent/FR2266272B1/fr not_active Expired
- 1975-03-24 CA CA222,865A patent/CA1032621A/en not_active Expired
- 1975-03-24 NL NL7503483A patent/NL7503483A/xx unknown
- 1975-03-25 JP JP50036513A patent/JPS50134413A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2512388A1 (de) | 1975-10-02 |
| CA1032621A (en) | 1978-06-06 |
| FR2266272A1 (ru) | 1975-10-24 |
| JPS50134413A (ru) | 1975-10-24 |
| US3911486A (en) | 1975-10-07 |
| DE2512388C2 (de) | 1983-12-01 |
| NL7503483A (nl) | 1975-09-29 |
| GB1457383A (en) | 1976-12-01 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |