FR2266272A1 - - Google Patents

Info

Publication number
FR2266272A1
FR2266272A1 FR7509152A FR7509152A FR2266272A1 FR 2266272 A1 FR2266272 A1 FR 2266272A1 FR 7509152 A FR7509152 A FR 7509152A FR 7509152 A FR7509152 A FR 7509152A FR 2266272 A1 FR2266272 A1 FR 2266272A1
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.)
Granted
Application number
FR7509152A
Other languages
French (fr)
Other versions
FR2266272B1 (it
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
American Videonetics Corp
Original Assignee
American Videonetics 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 American Videonetics Corp filed Critical American Videonetics Corp
Publication of FR2266272A1 publication Critical patent/FR2266272A1/fr
Application granted granted Critical
Publication of FR2266272B1 publication Critical patent/FR2266272B1/fr
Expired legal-status Critical Current

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)
FR7509152A 1974-03-25 1975-03-24 Expired FR2266272B1 (it)

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 true FR2266272A1 (it) 1975-10-24
FR2266272B1 FR2266272B1 (it) 1978-11-03

Family

ID=23803934

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7509152A Expired FR2266272B1 (it) 1974-03-25 1975-03-24

Country Status (7)

Country Link
US (1) US3911486A (it)
JP (1) JPS50134413A (it)
CA (1) CA1032621A (it)
DE (1) DE2512388C2 (it)
FR (1) FR2266272B1 (it)
GB (1) GB1457383A (it)
NL (1) NL7503483A (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453479A1 (fr) * 1979-03-14 1980-10-31 Victor Company Of Japan Dispositif a transformateur tournant multi-canaux pour appareil d'enregistrement et/ou de reproduction

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH584494A5 (it) * 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
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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453479A1 (fr) * 1979-03-14 1980-10-31 Victor Company Of Japan Dispositif a transformateur tournant multi-canaux pour appareil d'enregistrement et/ou de reproduction

Also Published As

Publication number Publication date
GB1457383A (en) 1976-12-01
NL7503483A (nl) 1975-09-29
FR2266272B1 (it) 1978-11-03
CA1032621A (en) 1978-06-06
DE2512388A1 (de) 1975-10-02
DE2512388C2 (de) 1983-12-01
JPS50134413A (it) 1975-10-24
US3911486A (en) 1975-10-07

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Legal Events

Date Code Title Description
ST Notification of lapse