BR7508127A - Aperfeicoamento em toca-folhas magnetico para ensino audio visual - Google Patents
Aperfeicoamento em toca-folhas magnetico para ensino audio visualInfo
- Publication number
- BR7508127A BR7508127A BR7508127A BR7508127A BR7508127A BR 7508127 A BR7508127 A BR 7508127A BR 7508127 A BR7508127 A BR 7508127A BR 7508127 A BR7508127 A BR 7508127A BR 7508127 A BR7508127 A BR 7508127A
- Authority
- BR
- Brazil
- Prior art keywords
- toca
- perfecting
- magnetic sheet
- audio visual
- visual education
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
- G11B21/04—Automatic feed mechanism producing a progressive transducing traverse of the head in a direction which cuts across the direction of travel of the recording medium, e.g. helical scan, e.g. by lead-screw
- G11B21/043—Automatic feed mechanism producing a progressive transducing traverse of the head in a direction which cuts across the direction of travel of the recording medium, e.g. helical scan, e.g. by lead-screw for stationary discs
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/06—Electrically-operated educational appliances with both visual and audible presentation of the material to be studied
- G09B5/062—Combinations of audio and printed presentations, e.g. magnetically striped cards, talking books, magnetic tapes with printed texts thereon
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
- G11B17/022—Positioning or locking of single discs
- G11B17/025—Positioning or locking of single discs of discs which are stationary during transducing operation
- G11B17/0255—Positioning or locking of single discs of discs which are stationary during transducing operation flexible discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/32—Maintaining desired spacing between record carrier and head, e.g. by fluid-dynamic spacing
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Moving Of Heads (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1974149199U JPS569652Y2 (pt) | 1974-12-11 | 1974-12-11 | |
JP2567975U JPS51107308U (pt) | 1975-02-25 | 1975-02-25 | |
JP2674675U JPS51108610U (pt) | 1975-02-27 | 1975-02-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
BR7508127A true BR7508127A (pt) | 1976-09-14 |
Family
ID=27285108
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR7508127A BR7508127A (pt) | 1974-12-11 | 1975-12-08 | Aperfeicoamento em toca-folhas magnetico para ensino audio visual |
Country Status (6)
Country | Link |
---|---|
BR (1) | BR7508127A (pt) |
DE (1) | DE2547644C3 (pt) |
FR (1) | FR2294506A1 (pt) |
GB (1) | GB1491600A (pt) |
IT (1) | IT1059860B (pt) |
NL (1) | NL184587C (pt) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1564021A (en) * | 1975-10-18 | 1980-04-02 | Ricoh Kk | Recording reproducer |
DE8438276U1 (de) * | 1984-12-29 | 1985-04-25 | Tepro Technologie und Produktentwicklung für Elektronik und Automatisierung GmbH & Co, 1000 Berlin | Vorrichtung zur tonaufzeichnung und wiedergabe auf flachen rechteckigen tontraegern |
-
1975
- 1975-10-21 FR FR7532160A patent/FR2294506A1/fr active Granted
- 1975-10-24 DE DE19752547644 patent/DE2547644C3/de not_active Expired
- 1975-10-29 GB GB4456875A patent/GB1491600A/en not_active Expired
- 1975-12-08 BR BR7508127A patent/BR7508127A/pt unknown
- 1975-12-08 NL NL7514282A patent/NL184587C/xx not_active IP Right Cessation
- 1975-12-11 IT IT7006075A patent/IT1059860B/it active
Also Published As
Publication number | Publication date |
---|---|
DE2547644C3 (de) | 1978-08-24 |
IT1059860B (it) | 1982-06-21 |
DE2547644B2 (de) | 1977-12-22 |
FR2294506B1 (pt) | 1981-06-12 |
NL7514282A (nl) | 1976-06-15 |
NL184587B (nl) | 1989-04-03 |
AU8718875A (en) | 1977-06-09 |
NL184587C (nl) | 1989-09-01 |
GB1491600A (en) | 1977-11-09 |
FR2294506A1 (fr) | 1976-07-09 |
DE2547644A1 (de) | 1976-06-16 |
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