FR1415354A - Method and optical device for high fidelity sound reproduction - Google Patents
Method and optical device for high fidelity sound reproductionInfo
- Publication number
- FR1415354A FR1415354A FR997049A FR997049A FR1415354A FR 1415354 A FR1415354 A FR 1415354A FR 997049 A FR997049 A FR 997049A FR 997049 A FR997049 A FR 997049A FR 1415354 A FR1415354 A FR 1415354A
- Authority
- FR
- France
- Prior art keywords
- optical device
- sound reproduction
- high fidelity
- fidelity sound
- reproduction
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
- G11B7/24085—Pits
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10527—Audio or video recording; Data buffering arrangements
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C17/00—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
- G11C17/005—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards with a storage element common to a large number of data, e.g. perforated card
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/14—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR997049A FR1415354A (en) | 1963-12-06 | 1964-12-02 | Method and optical device for high fidelity sound reproduction |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US328642A US3359376A (en) | 1963-12-06 | 1963-12-06 | Optical high-fidelity player arrangement |
FR997049A FR1415354A (en) | 1963-12-06 | 1964-12-02 | Method and optical device for high fidelity sound reproduction |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1415354A true FR1415354A (en) | 1965-10-22 |
Family
ID=26211475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR997049A Expired FR1415354A (en) | 1963-12-06 | 1964-12-02 | Method and optical device for high fidelity sound reproduction |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1415354A (en) |
-
1964
- 1964-12-02 FR FR997049A patent/FR1415354A/en not_active Expired
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