JPS542703A - Device for scanning variable area optical sound track - Google Patents

Device for scanning variable area optical sound track

Info

Publication number
JPS542703A
JPS542703A JP6563278A JP6563278A JPS542703A JP S542703 A JPS542703 A JP S542703A JP 6563278 A JP6563278 A JP 6563278A JP 6563278 A JP6563278 A JP 6563278A JP S542703 A JPS542703 A JP S542703A
Authority
JP
Japan
Prior art keywords
variable area
sound track
area optical
optical sound
scanning variable
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.)
Granted
Application number
JP6563278A
Other languages
Japanese (ja)
Other versions
JPS6250893B2 (en
Inventor
Miruton Dorubi Ree
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.)
Dolby Laboratories Licensing Corp
Original Assignee
Dolby Laboratories Licensing 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 Dolby Laboratories Licensing Corp filed Critical Dolby Laboratories Licensing Corp
Publication of JPS542703A publication Critical patent/JPS542703A/en
Publication of JPS6250893B2 publication Critical patent/JPS6250893B2/ja
Granted legal-status Critical Current

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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/003—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent
    • G11B7/0032—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent for moving-picture soundtracks, i.e. cinema
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/024—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by means of diode-array scanning
    • 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
    • G11B20/24—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing noise
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0007—Circuits or methods for reducing noise, for correction of distortion, or for changing density of recorded information

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
JP6563278A 1977-06-03 1978-05-31 Device for scanning variable area optical sound track Granted JPS542703A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80304277A 1977-06-03 1977-06-03

Publications (2)

Publication Number Publication Date
JPS542703A true JPS542703A (en) 1979-01-10
JPS6250893B2 JPS6250893B2 (en) 1987-10-27

Family

ID=25185428

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6563278A Granted JPS542703A (en) 1977-06-03 1978-05-31 Device for scanning variable area optical sound track

Country Status (7)

Country Link
JP (1) JPS542703A (en)
CA (1) CA1124402A (en)
DE (1) DE2823853A1 (en)
FR (1) FR2393342A1 (en)
GB (1) GB1598113A (en)
IT (1) IT1192315B (en)
NL (1) NL189322C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004508603A (en) * 2000-09-11 2004-03-18 ベーテーエス　ホールディング　インターナショナル　ベー　ヴィ Apparatus and method for reproducing an optical recording

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4577305A (en) * 1983-03-14 1986-03-18 Dolby Laboratories Licensing Corporation Stereophonic motion picture photographic sound-tracks compatible with different sound projection formats and record and playback apparatus therefore

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR885556A (en) * 1941-08-30 1943-09-20 Philips Nv Method for the electro-optical exploration of oscillation recordings
BE789499A (en) * 1971-09-30 1973-01-15 Siemens Ag PROCESS FOR SEQUENTIALLY RECORDING ANALOGUE DATA ON A MEMORIZATION TAPE
US3848095A (en) * 1972-12-20 1974-11-12 I O Metrics Corp Three dimensional electro-optical retrieval system
US3959784A (en) * 1974-12-23 1976-05-25 Actron High speed optical read-out of data stored in an array
DE2543276A1 (en) * 1975-09-27 1977-03-31 Licentia Gmbh Reproduction system for data carried on tapes - has monochromatic light source and pick-up units for optical signals to be converted to audio output

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004508603A (en) * 2000-09-11 2004-03-18 ベーテーエス　ホールディング　インターナショナル　ベー　ヴィ Apparatus and method for reproducing an optical recording

Also Published As

Publication number Publication date
IT1192315B (en) 1988-03-31
CA1124402A (en) 1982-05-25
DE2823853A1 (en) 1978-12-14
JPS6250893B2 (en) 1987-10-27
FR2393342B1 (en) 1984-11-16
GB1598113A (en) 1981-09-16
DE2823853C2 (en) 1988-05-19
NL7805719A (en) 1978-12-05
IT7849669A0 (en) 1978-06-02
NL189322B (en) 1992-10-01
FR2393342A1 (en) 1978-12-29
NL189322C (en) 1993-03-01

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