FR2423023A1 - Dispositif auxiliaire pour un enregistreur magnetique - Google Patents
Dispositif auxiliaire pour un enregistreur magnetiqueInfo
- Publication number
- FR2423023A1 FR2423023A1 FR7908331A FR7908331A FR2423023A1 FR 2423023 A1 FR2423023 A1 FR 2423023A1 FR 7908331 A FR7908331 A FR 7908331A FR 7908331 A FR7908331 A FR 7908331A FR 2423023 A1 FR2423023 A1 FR 2423023A1
- Authority
- FR
- France
- Prior art keywords
- recording
- auxiliary device
- magnetic
- magnetic recorder
- main
- Prior art date
- 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.)
- Withdrawn
Links
Classifications
-
- 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
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
- G11B25/10—Apparatus capable of using record carriers defined in more than one of the sub-groups G11B25/02 - G11B25/08; Adaptor devices therefor
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B31/00—Arrangements for the associated working of recording or reproducing apparatus with related apparatus
-
- 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
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
- H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Power Engineering (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
L'invention concerne les enregistreurs magnétiques. Un dispositif auxiliaire associé à un dispositif d'enregistrement/reproduction principal comprend essentiellement un amplificateur d'enregistrement 1, un oscillateur de signal de polarisation d'enregistrement 2, un circuit de déclenchement 3, et un amplificateur de reproduction 4. Ce circuit assure la commutation automatique du mode de fonctionnement du dispositif auxiliaire, pour qu'il corresponde toujours à celui du dispositif principal. Application à l'enregistrement magnétique.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/894,530 US4179715A (en) | 1978-04-10 | 1978-04-10 | Electric circuit for accessory for host tape recorder |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2423023A1 true FR2423023A1 (fr) | 1979-11-09 |
Family
ID=25403203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7908331A Withdrawn FR2423023A1 (fr) | 1978-04-10 | 1979-04-03 | Dispositif auxiliaire pour un enregistreur magnetique |
Country Status (7)
Country | Link |
---|---|
US (1) | US4179715A (fr) |
BE (1) | BE875265A (fr) |
DE (1) | DE2914482A1 (fr) |
FR (1) | FR2423023A1 (fr) |
GB (1) | GB2018490A (fr) |
LU (1) | LU81128A1 (fr) |
NL (1) | NL7902626A (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5589936A (en) * | 1978-12-26 | 1980-07-08 | Olympus Optical Co Ltd | Data decoder |
US4428008A (en) * | 1982-04-02 | 1984-01-24 | Ampex Corporation | Electronic switching circuit for use in magnetic head drives |
US4890179A (en) * | 1987-02-27 | 1989-12-26 | Baker James W | Magnetic tape backup device for use with a floppy disk drive |
WO1988006793A1 (fr) * | 1987-02-27 | 1988-09-07 | Baker James W | Dispositif de sauvegarde sur bande magnetique destine a etre utilise avec une unite de disque souple |
US5008762A (en) * | 1989-07-10 | 1991-04-16 | Samsung Electronics Co., Ltd. | Parallel and continuous playback circuit for an audio cassette deck of the double-deck type |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3752935A (en) * | 1970-01-20 | 1973-08-14 | Canon Kk | Automatic switch device for magnetic recording and reproducing device |
US3763330A (en) * | 1971-06-28 | 1973-10-02 | Tapecon | Auxiliary device for a cassette tape recorder including a plug conformed as a cassette for interconnection |
US3959817A (en) * | 1973-11-15 | 1976-05-25 | Victor Company Of Japan, Limited | Switching circuit for connecting a magnetic head in a magnetic recording and reproducing apparatus |
-
1978
- 1978-04-10 US US05/894,530 patent/US4179715A/en not_active Expired - Lifetime
-
1979
- 1979-03-26 GB GB7910464A patent/GB2018490A/en not_active Withdrawn
- 1979-04-02 BE BE0/194363A patent/BE875265A/fr unknown
- 1979-04-03 FR FR7908331A patent/FR2423023A1/fr not_active Withdrawn
- 1979-04-04 NL NL7902626A patent/NL7902626A/xx not_active Application Discontinuation
- 1979-04-06 LU LU81128A patent/LU81128A1/fr unknown
- 1979-04-06 DE DE19792914482 patent/DE2914482A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
BE875265A (fr) | 1979-07-31 |
NL7902626A (nl) | 1979-10-12 |
DE2914482A1 (de) | 1979-10-31 |
LU81128A1 (fr) | 1979-06-19 |
GB2018490A (en) | 1979-10-17 |
US4179715A (en) | 1979-12-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |